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1

Security-Constrained Adequacy Evaluation of Bulk Power System Reliability  

E-Print Network (OSTI)

Security-Constrained Adequacy Evaluation of Bulk Power System Reliability Fang Yang, Student Member. Stefopoulos, Student Member, IEEE Abstract -- A framework of security-constrained adequacy evaluation (SCAE electric load while satisfying security constraints. It encompasses three main steps: (a) critical

2

High-Energy, Low-Frequency Risk to the North American Bulk Power System  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

High-Energy, Low-Frequency Risk to the North American Bulk Power High-Energy, Low-Frequency Risk to the North American Bulk Power System (June 2010) High-Energy, Low-Frequency Risk to the North American Bulk Power System (June 2010) A Jointly-Commissioned Summary Report of the North American Electric Reliability Corporation and the U.S. Department of Energy's November 2009 Workshop. The North American Electric Reliability Corporation (NERC) and the U.S. Department of Energy (DOE) partnered in July of 2009 on an effort to address High-Impact, Low-Frequency risks to the North American bulk power system. In August, NERC formed a steering committee made up of industry and risk experts to lead the development of an initial workshop on the subject, chaired by Scott Moore, VP Transmission System & Region Operations for American Electric Power, and Robert Stephan, Former Assistant Secretary for

3

bulk power | OpenEI  

Open Energy Info (EERE)

bulk power bulk power Dataset Summary Description The Form EIA-411, "Coordinated Bulk Power Supply Program Report," collects information from the Nation's power system planners about the electricity supply, both capacity and energy, that is needed to serve current demand and for future growth. Source Energy Information Administration (EIA) Date Released December 03rd, 2010 (3 years ago) Date Updated December 03rd, 2010 (3 years ago) Keywords bulk power EIA Electricity Generation Data application/vnd.ms-excel icon Net Energy for Load - Historic, Actual and Projected Five-Years (xls, 26.1 KiB) application/vnd.ms-excel icon Noncoincident Peak Load - Historic, Actual and Projected Five-Years (xls, 25.6 KiB) application/vnd.ms-excel icon Noncoincident Peak Load - Historic, Actual and Projected Five-Years (xls, 0 bytes)

4

Framework for Stochastic Reliability of Bulk Power System  

Science Conference Proceedings (OSTI)

Value-based reliability assessment is a useful aid to effective decision making about short- and long-term transmission planning and operation. This report describes efforts to develop additional functionality in EPRI's Transmission Reliability Evaluation for Large Scale Systems (TRELSS) program.

1998-03-26T23:59:59.000Z

5

Bulk Power Transmission Study  

E-Print Network (OSTI)

"Texans now have a choice. We can become more efficient and maintain our standard of living, or we can continue business as usual and watch our standard of living erode from competition from other regions. In the past, except for improving reliability, there was no need for a strong transmission system. When Texas generation was primarily gas fueled, the extensive natural gas pipeline network moved energy easily within the state. In recent years two things have changed: 1. Electric utilities have made extensive investment in lignite, coal, and nuclear plants and, 2. Improvements in gas turbine technology and the removal of institutional barriers has encouraged cogeneration at many of our energy intensive process industries. This energy diversity means that there are now significant differences in energy costs between units. The variable costs of generation of power can vary between units by a ratio of 2 or 3 to 1 and this difference will be accentuated when energy costs rise (and they will; it’s a question of when, not if). The potential for costs savings by optional dispatching of the entire interconnected system are greater than ever before as demonstrated by the PUC's Bulk Power Transmission Study. And the potential can be enhanced with added transmission system investment. Cogeneration and small power production has proven to be the most cost effective way for Texas to add additional generating capacity needed to supply an economy that is starting to rebound and to replace old, obsolete power plants. The freedom to locate these facilities at the fuel source or at the site of large thermal demand makes real economic and environmental sense. The use of renewable or waste fuels allows something that would otherwise be wasted to contribute to our economy. Fossil fuels that are displaced can be redirected to another use or consumed for future benefit. By integrating a gas turbine generator with a. process plant, the natural gas required for producing electricity can be reduced by 40% below that required for a combined cycle. The heat rejected from a gas turbine, combined cycle, or steam plant can be redirected to a process use that contributes to our economy by producing something of value to world markets. By contrast a conventional power plant is paid for by the rate payers and consumes Texas natural resources and therefore is a burden rather than an enhancement to our economy. The optimal location of facilities are possible only if there is an adequate transmission system. Utility, consumer and industry must cooperate to improve our transmission system for the benefit of all Texas. The Texas Public Utilities Commission has taken the lead in promoting efficiency by requiring transmission wheeling between qualifying facilities and electric utilities. Several cogeneration facilities have been constructed as a result. In order to encourage small power production, the rule needs to be expanded to include projects interconnected with distribution systems. Most renewable resource projects are relatively small and cannot afford the cost of a high voltage interconnect, and yet their characteristics match a baseload need. The ability to wheel power to a utility that needs base load power from a distribution level interconnection is essential to development of these smaller projects."

John, T.

1988-09-01T23:59:59.000Z

6

Renewable Electricity Futures Study. Volume 4: Bulk Electric Power Systems: Operations and Transmission Planning  

NLE Websites -- All DOE Office Websites (Extended Search)

Bulk Electric Power Systems: Bulk Electric Power Systems: Operations and Transmission Planning Volume 4 of 4 Volume 2 PDF Volume 3 PDF Volume 1 PDF Volume 4 PDF NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Renewable Electricity Futures Study Edited By Hand, M.M. National Renewable Energy Laboratory Baldwin, S. U.S. Department of Energy DeMeo, E. Renewable Energy Consulting Services, Inc. Reilly, J.M. Massachusetts Institute of Technology Mai, T. National Renewable Energy Laboratory Arent, D. Joint Institute for Strategic Energy Analysis Porro, G. National Renewable Energy Laboratory Meshek, M. National Renewable Energy Laboratory Sandor, D. National Renewable

7

A knowledge-based method for making restoration plan of bulk power system  

SciTech Connect

In this paper a knowledge-based method is proposed for use in event of power system outages. This method uses general-purpose restoration knowledge not dependent on pre-outage system states in order to generate post-restoration target systems in which post-outage systems are taken as initial states. Conventionally post-outage system states are formed to emulate as closely as possible pre-outage system states, with system operations performed only within blackout systems. Therefore, depending on the amount of pre-outage load, some outage loads may be experienced in the restored system. Proposed here is a method by which system operations in both blackout systems and sound systems are combined according to the amount of load in the pre-outage systems, so that post-restoration system states with minimal outage loads from post-outage systems will be generated. A prototype system incorporating actual power systems and utilizing this method was built and tested under simulated conditions. The effectiveness of the proposed system is discussed on the basis of the test results.

Shimakura, K.; Inagaki, J.; Matsunoki, Y. (Hokkaido Univ., Sapporo (Japan). Faculty of Science); Ito, M.; Fukui, S.; Hori, S. (Mitsubishi Electric Corp., 1-1-2 Wadasaki-cho, Hyogo-ku, Kobe (JP))

1992-05-01T23:59:59.000Z

8

Hanford ETR Bulk Vitrification System - Demonstration Bulk Vitrification  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Bulk Vitrification System - Demonstration Bulk Bulk Vitrification System - Demonstration Bulk Vitrification System (DBVS) Review Report Hanford ETR Bulk Vitrification System - Demonstration Bulk Vitrification System (DBVS) Review Report Full Document and Summary Versions are available for download Hanford ETR Bulk Vitrification System - Demonstration Bulk Vitrification System (DBVS) Review Report Summary - Demonstration Bulk Vitrification System (DBVS) for Low-Actvity Waste at Hanford More Documents & Publications Independent Oversight Activity Report, Hanford Waste Treatment and Immobilization Plant - November 2013 SRS Tank 48H Waste Treatment Project Technology Readiness Assessment External Technical Review for Evaluation of System Level Modeling and Simulation Tools in Support of Hanford Site Liquid Waste Process

9

Development of static and simulation programs for voltage stability studies of bulk power system  

SciTech Connect

In the analysis and evaluation of voltage stability, it is necessary to accurately identify the stability margin at each load point under specific system configuration or power balance condition. Voltage stability margin can be basically identified by the multi-solution load flow calculation method. When predicted by this static analysis that voltage instability may occur, time domain simulation will be required which includes the models of various control equipments related with system voltage profile. To deal with this, the following two analytical computer codes shown below were developed. (1) Voltage stability static analysis computer code employing a new load flow calculation method. (2) Time domain long term simulation computer code for voltage stability. These computer codes can also calculate the voltage stability index at each load point which is based on the margin to the stability power limit at each load point. The practicality of these codes developed were verified by applying to the IEEE-118 test system.

Nagao, T.; Tanaka, K.; Takenaka, K. [Central Research Inst. of Electric Power Industry, Tokyo (Japan)

1997-02-01T23:59:59.000Z

10

Framework for Stochastic Reliability of Bulk Power System with Stability Constraints  

Science Conference Proceedings (OSTI)

The power industry is saddled with the dual responsibilities of generating power at affordable cost and supplying it to the consumers at an affordable and acceptable price. The availability of the supply and the security thereof are equally of paramount importance to utilities. The research is aimed at seeking elegant methods for conducting the concurrent stability/ reliability assessment, selection of remedial actions (RA), optimization and cost benefit analysis with benefit allocation in multi-area sys...

2004-02-27T23:59:59.000Z

11

TVA Tracks Bulk Power Transfers with TagNet to Improve Transmission System Reliability  

Science Conference Proceedings (OSTI)

The bubble diagram is especially useful. In the world of real-time operations, a picture is worth a thousand words. TagNet provides TVA with The ability to identify root causes for real-time system behavior Data for future reliability models for approximation of transfer biases A mechanism to monitor system conditions using a graphical toolset. 8212Armando Rodriguez, TVA.

2006-02-15T23:59:59.000Z

12

INVESTIGATION OF BULK POWER ERCOT (Texas)  

E-Print Network (OSTI)

INVESTIGATION OF BULK POWER MARKETS ERCOT (Texas) November 1, 2000 The analyses and conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 A. Electric Reliability Council of Texas (ERCOT) . . . . . . . . . . . . . . . . . . . . . . . . 4-2 B. The 1995 Texas Electricity Restructuring Statute

Laughlin, Robert B.

13

Texas Bulk Power Study-- An Overview  

E-Print Network (OSTI)

In the 1980's, several significant changes have evolved in markets for electric power in Texas. Cogeneration, fuel market volatility, electric system reliability, generation and transmission facility construction delays, construction cost escalation, regional disparities in load growth, severe economic cycles, and a variety of legal, health and environmental issues have contributed to increasing uncertainty in the utility planning process. Through more coordination and power pooling among the state's major utilities within the Electric Reliability Council of Texas (ERCOT), a potentially higher level of bulk power transactions may reduce some uncertainty and result in cost savings to the utilities involved. However, both the transactions potential and any corresponding changes in operating costs are quite sensitive to assumptions about the price of natural gas for use as a utility boiler fuel. A large computer model which simulates the operation of the utilities under the extreme boundary conditions of zero transactions and fully coordinated economic dispatch results in a range of transactions from 5% to 14% of total system energy requirements and a range of cost savings from less than 1% to nearly 6% of the ERCOT system variable operating costs.

Moore, B.

1988-09-01T23:59:59.000Z

14

Integrating Wind and Solar Energy in the U.S. Bulk Power System: Lessons from Regional Integration Studies  

DOE Green Energy (OSTI)

Two recent studies sponsored by the U.S. Department of Energy (DOE) and the National Renewable Energy Laboratory (NREL) have examined the impacts of integrating high penetrations of wind and solar energy on the Eastern and Western electric grids. The Eastern Wind Integration and Transmission Study (EWITS), initiated in 2007, examined the impact on power system operations of reaching 20% to 30% wind energy penetration in the Eastern Interconnection. The Western Wind and Solar Integration Study (WWSIS) examined the operational implications of adding up to 35% wind and solar energy penetration to the Western Interconnect. Both studies examined the costs of integrating variable renewable energy generation into the grid and transmission and operational changes that might be necessary to address higher penetrations of wind or solar generation. This paper identifies key insights from these regional studies for integrating high penetrations of renewables in the U.S. electric grid. The studies share a number of key findings, although in some instances the results vary due to differences in grid operations and markets, the geographic location of the renewables, and the need for transmission.

Bird, L.; Lew, D.

2012-09-01T23:59:59.000Z

15

Definition: Bulk Electric System | Open Energy Information  

Open Energy Info (EERE)

Bulk Electric System Bulk Electric System Jump to: navigation, search Dictionary.png Bulk Electric System As defined by the Regional Reliability Organization, the electrical generation resources, transmission lines, interconnections with neighboring systems, and associated equipment, generally operated at voltages of 100 kV or higher. Radial transmission facilities serving only load with one transmission source are generally not included in this definition.[1] Related Terms Regional Reliability Organization, transmission lines, transmission line References ↑ Glossary of Terms Used in Reliability Standards An in LikeLike UnlikeLike You like this.Sign Up to see what your friends like. line Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Bulk_Electric_System&oldid=48030

16

Organization of bulk power markets: A concept paper  

SciTech Connect

The electricity industry in the US today is at a crossroads. The restructuring debate going on in most regions has made it clear that the traditional model of vertically integrated firms serving defined franchise areas and regulated by state commissions may not be the pattern for the future. The demands of large customers seeking direct access to power markets, the entry of new participants, and proposed reforms of the regulatory process all signify a momentum for fundamental change in the organization of the industry. This paper addresses electricity restructuring from the perspective of bulk power markets. The authors focus attention on the organization of electricity trade and the various ways it has been and might be conducted. Their approach concentrates on conceptual models and empirical case studies, not on specific proposals made by particular utilities or commissions. They review literature in economics and power system engineering that is relevant to the major questions. The objective is to provide conceptual background to industry participants, e.g. utility staff, regulatory staff, new entrants, who are working on specific proposals. While they formulate many questions, they do not provide definitive answers on most issues. They attempt to put the industry restructuring dialogue in a neutral setting, translating the language of economists for engineers and vice versa. Towards this end they begin with a review of the basic economic institutions in the US bulk power markets and a summary of the engineering practices that dominate trade today.

Kahn, E.; Stoft, S. [Lawrence Berkeley Lab., CA (United States). Energy and Environment Div.

1995-12-01T23:59:59.000Z

17

Understanding Bulk Power Reliability: The Importance of Good Data and A  

NLE Websites -- All DOE Office Websites (Extended Search)

Understanding Bulk Power Reliability: The Importance of Good Data and A Understanding Bulk Power Reliability: The Importance of Good Data and A Critical Review of Existing Sources Title Understanding Bulk Power Reliability: The Importance of Good Data and A Critical Review of Existing Sources Publication Type Report Year of Publication 2012 Authors Fisher, Emily, Joseph H. Eto, and Kristina Hamachi LaCommare Pagination 11 Date Published 01/2012 Publisher LBNL City Berkeley Keywords electricity markets and policy group, energy analysis and environmental impacts department, power system reliability, power system reliability metrics, transmission system reliability Abstract Bulk power system reliability is of critical importance to the electricity sector. Complete and accurate information on events affecting the bulk power system is essential for assessing trends and efforts to maintain or improve reliability. Yet, current sources of this information were not designed with these uses in mind. They were designed, instead, to support real-time emergency notification to industry and government first-responders. This paper reviews information currently collected by both industry and government sources for this purpose and assesses factors that might affect their usefulness in supporting the academic literature that has relied upon them to draw conclusions about the reliability of the US electric power system.

18

Understanding Bulk Power Reliability: The Importance of Good Data and A Critical Review of Existing Sources  

NLE Websites -- All DOE Office Websites (Extended Search)

Understanding Bulk Power Reliability: Understanding Bulk Power Reliability: The Importance of Good Data and A Critical Review of Existing Sources Emily Fisher Lawrence Berkeley National Laboratory esfisher@lbl.gov Joseph H. Eto Lawrence Berkeley National Laboratory jheto@lbl.gov Kristina Hamachi LaCommare Lawrence Berkeley National Laboratory kshamachi@lbl.gov Abstract Bulk power system reliability is of critical importance to the electricity sector. Complete and accurate information on events affecting the bulk power system is essential for assessing trends and efforts to maintain or improve reliability. Yet, current sources of this information were not designed with these uses in mind. They were designed, instead, to support real-time emergency notification to industry and government first-responders. This

19

Form EIA-411, "Coordinated Bulk Power Supply Program Report," | OpenEI  

Open Energy Info (EERE)

411, "Coordinated Bulk Power Supply Program Report," 411, "Coordinated Bulk Power Supply Program Report," Dataset Summary Description The Form EIA-411, "Coordinated Bulk Power Supply Program Report," collects information from the Nation's power system planners about the electricity supply, both capacity and energy, that is needed to serve current demand and for future growth. The reported data can be used to examine such issues as: the reliability of the U.S. electricity system; projections which assess future demand growth and plans for constructing new generating and transmission facilities; and consequences of unavailable or constrained capacity on usage of the existing generation base. Reliability of the electric power system covers three areas: the security of the electrical systems; the usage of

20

ERUS 2014 Bulk Power and Reliability  

U.S. Energy Information Administration (EIA)

SMART GRID Transmission System Devices A proposed EIA-411 survey schedule will collect data on: • The number of networked and non-networked Phasor Measurement ...

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Understanding Bulk Power Reliability: The Importance of Good Data and A Critical Review of Existing Sources  

Science Conference Proceedings (OSTI)

Bulk power system reliability is of critical importance to the electricity sector. Complete and accurate information on events affecting the bulk power system is essential for assessing trends and efforts to maintain or improve reliability. Yet, current sources of this information were not designed with these uses in mind. They were designed, instead, to support real-time emergency notification to industry and government first-responders. This paper reviews information currently collected by both industry and government sources for this purpose and assesses factors that might affect their usefulness in supporting the academic literature that has relied upon them to draw conclusions about the reliability of the US electric power system.

Fisher, Emily; Eto, Joseph H.; LaCommare, Kristina Hamachi

2011-10-19T23:59:59.000Z

22

Evaluation of Potential Bulk System Reliability Impacts of Distributed Resources  

Science Conference Proceedings (OSTI)

In recent years, distributed energy resources (DER) penetration has increased, but projections for penetration over the next 10 years show dramatic increases. Much of this is made up of distributed solar photovoltaic (PV) power, which is estimated to expand significantly in the United States in coming years. This project describes how methods to assess bulk system reliability might need to be altered to account for increasing levels of DER, particularly PV. It also aims to produce mitigating strategies t...

2011-12-21T23:59:59.000Z

23

2007 iREP Symposium-Bulk Power System Dynamics and Control -VII, Revitalizing Operational Reliability August 19-24, 2007, Charleston, SC, USA  

E-Print Network (OSTI)

, electricity markets, load shape, power system economics, reverse auctions in electricity, risk management all the uncertainty of meeting the load and the load forecast. This randomness in the load implies the uncertainty in the load and the load forecast. As such a buyer is unable to meet the demand requirements

Gross, George

24

Hanford ETR Bulk Vitrification System - Demonstration Bulk Vitrification System (DBVS) Review Report  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

A Comprehensive Technical A Comprehensive Technical Review of the Demonstration Bulk Vitrification System Technical Assessment Conducted by an Independent and External Team of Experts Volume 1 September 28, 2006 Chartered by CH2M HILL Hanford Group, Inc. Richland, Washington 99352 RPP-31314 Executive Summary In May 2006, CH2M HILL Hanford Group, Inc. chartered an Expert Review Panel (ERP) to review the current status of the Demonstration Bulk Vitrification System (DBVS). It is the consensus of the ERP that bulk vitrification is a technology that requires further development and evaluation to determine its potential for meeting the Hanford waste stabilization mission. No fatal flaws (issues that would jeopardize the overall DBVS mission that cannot be mitigated) were found, given the current state of the project.

25

Power system  

DOE Patents (OSTI)

A power system includes a prime mover, a transmission, and a fluid coupler having a selectively engageable lockup clutch. The fluid coupler may be drivingly connected between the prime mover and the transmission. Additionally, the power system may include a motor/generator drivingly connected to at least one of the prime mover and the transmission. The power-system may also include power-system controls configured to execute a control method. The control method may include selecting one of a plurality of modes of operation of the power system. Additionally, the control method may include controlling the operating state of the lockup clutch dependent upon the mode of operation selected. The control method may also include controlling the operating state of the motor/generator dependent upon the mode of operation selected.

Hickam, Christopher Dale (Glasford, IL)

2008-03-18T23:59:59.000Z

26

An evolutionary optimization approach for bulk material blending systems  

Science Conference Proceedings (OSTI)

Bulk material blending systems still mostly implement static and non-reactive material blending methods like the well-known Chevron stacking. The optimization potential in the existing systems which can be made available using quality analyzing methods ... Keywords: bulk material blending, chevron stacking, multi-objective evolutionary algorithms

Michael P. Cipold; Pradyumn Kumar Shukla; Claus C. Bachmann; Kaibin Bao; Hartmut Schmeck

2012-09-01T23:59:59.000Z

27

Power management system  

DOE Patents (OSTI)

A method of managing power resources for an electrical system of a vehicle may include identifying enabled power sources from among a plurality of power sources in electrical communication with the electrical system and calculating a threshold power value for the enabled power sources. A total power load placed on the electrical system by one or more power consumers may be measured. If the total power load exceeds the threshold power value, then a determination may be made as to whether one or more additional power sources is available from among the plurality of power sources. At least one of the one or more additional power sources may be enabled, if available.

Algrain, Marcelo C. (Peoria, IL); Johnson, Kris W. (Washington, IL); Akasam, Sivaprasad (Peoria, IL); Hoff, Brian D. (East Peoria, IL)

2007-10-02T23:59:59.000Z

28

A COMPREHENSIVE TECHNICAL REVIEW OF THE DEMONSTRATION BULK VITRIFICATION SYSTEM  

Science Conference Proceedings (OSTI)

In May 2006, CH2M Hill Hanford Group, Inc. chartered an Expert Review Panel (ERP) to review the current status of the Demonstration Bulk Vitrification System (DBVS). It is the consensus of the ERP that bulk vitrification is a technology that requires further development and evaluation to determine its potential for meeting the Hanford waste stabilization mission. No fatal flaws (issues that would jeopardize the overall DBVS mission that cannot be mitigated) were found, given the current state of the project. However, a number of technical issues were found that could significantly affect the project's ability to meet its overall mission as stated in the project ''Justification of Mission Need'' document, if not satisfactorily resolved. The ERP recognizes that the project has changed from an accelerated schedule demonstration project to a formally chartered project that must be in full compliance with DOE 413.3 requirements. The perspective of the ERP presented herein, is measured against the formally chartered project as stated in the approved Justification of Mission Need document. A justification of Mission Need document was approved in July 2006 which defined the objectives for the DBVS Project. In this document, DOE concluded that bulk vitrification is a viable technology that requires additional development to determine its potential applicability to treatment of a portion of the Hanford low activity waste. The DBVS mission need statement now includes the following primary objectives: (1) process approximately 190,000 gallons of Tank S-109 waste into fifty 100 metric ton boxes of vitrified product; (2) store and dispose of these boxes at Hanford's Integrated Disposal Facility (IDF); (3) evaluate the waste form characteristics; (4) gather pilot plant operability data, and (5) develop the overall life cycle system performance of bulk vitrification and produce a comparison of the bulk vitrification process to building a second LAW Immobilization facility or other supplemental treatment alternatives as provided in M-62-08.

SCHAUS, P.S.

2006-09-29T23:59:59.000Z

29

Efficient Bulk Data Replication for the Earth System Grid  

SciTech Connect

The Earth System Grid (ESG) community faces the difficult challenge of managing the distribution of massive data sets to thousands of scientists around the world. To move data replicas efficiently, the ESG has developed a data transfer management tool called the Bulk Data Mover (BDM). We describe the performance results of the current system and plans towards extending the techniques developed so far for the up- coming project, in which the ESG will employ advanced networks to move multi-TB datasets with the ulti- mate goal of helping researchers understand climate change and its potential impacts on world ecology and society.

Sim, Alex; Gunter, Dan; Natarajan, Vijaya; Shoshani, Arie; Williams, Dean; Long, Jeff; Hick, Jason; Lee, Jason; Dart, Eli

2010-03-10T23:59:59.000Z

30

Bulk Energy Storage: Assessment of Green House Gas Impacts to the Electric Power Sector  

Science Conference Proceedings (OSTI)

Electric utilities are interested in understanding the role and impacts electric energy storage systems can have on reducing the electric sector's green house gas (GHG) emissions. This research project was undertaken to better understand and quantify GHG impacts of electric storage systems. The project specifically focuses on bulk energy storage systems such as compressed air energy storage (CAES).

2008-12-22T23:59:59.000Z

31

Bulk Electricity System Impacts of Distributed and Transmission System Connected Solar PV  

Science Conference Proceedings (OSTI)

This report describes research examining how increased levels of photovoltaic (PV) can impact the bulk electricity system. Previous modeling of both bulk and distributed systems was extended to include more realistic assumptions, further sensitivities, and greater explanation of results. It was shown that high penetrations of distributed PV without low-voltage ride-through (LVRT) will increase voltage recovery time after a fault. The impact is exacerbated when the potential for residential ac ...

2012-12-31T23:59:59.000Z

32

ORCED: A model to simulate the operations and costs of bulk-power markets  

SciTech Connect

Dramatic changes in the structure and operation of US bulk-power markets require new analytical tools. The authors developed the Oak Ridge Competitive Electricity Dispatch (ORCED) model to analyze a variety of public-policy issues related to the many changes underway in the US electricity industry. Such issues include: policy and technology options to reduce carbon emissions from electricity production; the effects of electricity trading between high- and low-cost regions on consumers and producers in both regions; the ability of the owners of certain generating units to exercise market power as functions of the transmission link between two regions and the characteristics of the generating units and loads in each region; and the market penetration of new energy-production and energy-use technologies and the effects of their adoption on fuel use, electricity use and costs, and carbon emissions. ORCED treats two electrical systems connected by a single transmission link ORCED uses two load-duration curves to represent the time-varying electricity consumption in each region. The two curves represent peak and offpeak seasons. User specification of demand elasticities permits ORCED to estimate the effects of changes in electricity price, both overall and hour by hour, on overall electricity use and load shapes. ORCED represents the electricity supply in each region with 26 generating units. The two regions are connected by a single transmission link. This link is characterized by its capacity (MW), cost ({cents}/kWh), and losses (%). This report explains the inputs to, outputs from, and operation of ORCED. It also presents four examples showing applications of the model to various public-policy issues related to restructuring of the US electricity industry.

Hadley, S.; Hirst, E.

1998-06-01T23:59:59.000Z

33

Crowd-powered systems  

E-Print Network (OSTI)

Crowd-powered systems combine computation with human intelligence, drawn from large groups of people connecting and coordinating online. These hybrid systems enable applications and experiences that neither crowds nor ...

Bernstein, Michael Scott

2012-01-01T23:59:59.000Z

34

IBM POWER7 systems  

Science Conference Proceedings (OSTI)

This paper describes the system architectures and designs of the IBM POWER7® servers. From the smallest single-processor socket blade to the largest 32-processor-socket 256-core enterprise rack server, each system is designed to fully ...

R. X. Arroyo; R. J. Harrington; S. P. Hartman; T. Nguyen

2011-05-01T23:59:59.000Z

35

High-dielectric-constant ferroelectric thin film and bulk ceramic capacitors for power electronics.  

DOE Green Energy (OSTI)

Significant effort is presently focused on reducing the size and weight of power electronic modules. To achieve these goals in high-power capacitors, alternative materials and fabrication processes are needed. Thin film (<0.5 {micro}m) and bulk capacitors that use perovskite-based ferroelectric dielectrics are promising alternative technologies. Ferroelectrics possess high dielectric constants, thus offering substantial increases in volumetric capacitance. In thin film form, these materials display low loss and high breakdown strength. The unique properties of some of these materials, such as a nonlinear dielectric response or a high energy-storage capacity accompanying a phase change, can be exploited for power electronic capacitors. Prototype capacitors of two such materials, (Ba,Sr)TiO{sub 3} and PbZrO{sub 3}, have been fabricated in both thin film and bulk ceramic form. The influence of fabrication conditions on dielectric properties has been studied. Initial studies have demonstrated the viability of perovskite ferroelectrics for next-generation capacitor components.

Auciello, O. H.; Baldo, P.; Baumann, P.; Erck, R. A.; Giumarra, J.; Im, J.; Kaufman, D. Y.; Lanagan, M. T.; Pan, M. J.; Streiffer, S. K.; Zebrowski, J.

1999-08-10T23:59:59.000Z

36

Flywheel Power Systems: Market Analysis  

Science Conference Proceedings (OSTI)

High speed flywheel power systems offer a new opportunity to provide power delivery systems. Such systems are very useful to mitigate power quality problems. This report focuses on the industrial market for flywheel storage systems.

1998-02-20T23:59:59.000Z

37

Solar powered desalination system  

E-Print Network (OSTI)

Desalination Systems Developers MIT BARC IMB Power Solar PVcells Solar PV cells 10 MW solar farm Solar pond FranciscoSolar Energy: PEC vs. PV Solar energy is just as important

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

38

Markets to Facilitate Wind and Solar Energy Integration in the Bulk Power Supply: An IEA Task 25 Collaboration; Preprint  

Science Conference Proceedings (OSTI)

Wind and solar power will give rise to challenges in electricity markets regarding flexibility, capacity adequacy, and the participation of wind and solar generators to markets. Large amounts of wind power will have impacts on bulk power system markets and electricity prices. If the markets respond to increased wind power by increasing investments in low-capital, high-cost or marginal-cost power, the average price may remain in the same range. However, experiences so far from Denmark, Germany, Spain, and Ireland are such that the average market prices have decreased because of wind power. This reduction may result in additional revenue insufficiency, which may be corrected with a capacity market, yet capacity markets are difficult to design. However, the flexibility attributes of the capacity also need to be considered. Markets facilitating wind and solar integration will include possibilities for trading close to delivery (either by shorter gate closure times or intraday markets). Time steps chosen for markets can enable more flexibility to be assessed. Experience from 5- and 10-minute markets has been encouraging.

Milligan, M.; Holttinen, H.; Soder, L.; Clark, C.; Pineda, I.

2012-09-01T23:59:59.000Z

39

Investigation of the Technical and Economic Feasibility of Micro-Grid Based Power Systems  

Science Conference Proceedings (OSTI)

The power industry began as micro-grids, small power systems unconnected to a bulk power system. Today, because of the advent of new distributed resource technologies, better control systems, the need for improved distribution system performance, and various constraints associated with continued expansion of the traditional bulk power system, there is new interest in returning to micro-grid approaches for some applications. The new micro-grids of the 21st century can perform much better than the early 20...

2001-12-12T23:59:59.000Z

40

Dynamic power management in environmentally powered systems  

Science Conference Proceedings (OSTI)

In this paper a framework for energy management in energy harvesting embedded systems is presented. As a possible example scenario, we focus on wireless sensor nodes which are powered by solar cells. We demonstrate that classical power management solutions ... Keywords: embedded systems, energy harvesting, model predictive control, power management, real-time scheduling, reward maximization

Clemens Moser; Jian-Jia Chen; Lothar Thiele

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

GENERAL ELECTRIC POWER SYSTEMS  

E-Print Network (OSTI)

Since last year’s GTC Conference, a considerable number of significant events have occurred in the gasification technology marketplace. New IGCC projects have come on stream with commercial operation, other new IGCC projects have been announced and started in development, environmental issues have gained emphasis, and energy prices, notably natural gas, have escalated dramatically. Directionally, all of these events appear to have created a more favorable atmosphere for IGCC projects. Related to an ongoing IGCC project currently in development, a joint analysis has been performed by Global Energy, General Electric Power Systems, and Praxair to evaluate technical and economic elements for the performance of BGL Gasification Technology based on solid hydrocarbon fuel feed to an IGCC for power generation. Results of the analysis provide a picture of the relative economics in today’s environment for electrical power generation by conventional natural gas fired combined cycle power systems compared to using BGL Gasification Technology in an IGCC configuration. 2

Igcc Power Generation; Richard A. Olliver; John M. Wainwright; Raymond F. Drnevich Abstract

2000-01-01T23:59:59.000Z

42

Power Tower Systems for Concentrating Solar Power  

Energy.gov (U.S. Department of Energy (DOE))

In power tower concentrating solar power systems, numerous large, flat, sun-tracking mirrors, known as heliostats, focus sunlight onto a receiver at the top of a tall tower. A heat-transfer fluid...

43

Power Systems Development Facility progress report  

Science Conference Proceedings (OSTI)

This is a report on the progress in design and construction of the Power Systems Development Facility. The topics of the report include background information, descriptions of the advanced gasifier, advanced PFBC, particulate control devices, and fuel cell. The major activities during the past year have been the final stages of design, procurement of major equipment and bulk items, construction of the facility, and the preparation for the operation of the Facility in late 1995.

Rush, R.E.; Hendrix, H.L.; Moore, D.L.; Pinkston, T.E.; Vimalchand, P.; Wheeldon, J.M.

1995-11-01T23:59:59.000Z

44

Heavy Vehicle Essential Power Systems Workshop  

DOE Green Energy (OSTI)

Essential power is a crosscutting technology area that addresses the efficient and practical management of electrical and thermal requirements on trucks. Essential Power Systems: any function on the truck, that is not currently involved in moving the truck, and requires electrical or mechanical energy; Truck Lights; Hotel Loads (HVAC, computers, appliances, lighting, entertainment systems); Pumps, starter, compressor, fans, trailer refrigeration; Engine and fuel heating; and Operation of power lifts and pumps for bulk fluid transfer. Transition from ''belt and gear driven'' to auxiliary power generation of electricity - ''Truck Electrification'' 42 volts, DC and/ or AC; All electrically driven auxiliaries; Power on demand - manage electrical loads; Benefits include: increased fuel efficiency, reduced emission both when truck is idling and moving down the road.

Susan Rogers

2001-12-12T23:59:59.000Z

45

Heavy Vehicle Essential Power Systems Workshop  

SciTech Connect

Essential power is a crosscutting technology area that addresses the efficient and practical management of electrical and thermal requirements on trucks. Essential Power Systems: any function on the truck, that is not currently involved in moving the truck, and requires electrical or mechanical energy; Truck Lights; Hotel Loads (HVAC, computers, appliances, lighting, entertainment systems); Pumps, starter, compressor, fans, trailer refrigeration; Engine and fuel heating; and Operation of power lifts and pumps for bulk fluid transfer. Transition from ''belt and gear driven'' to auxiliary power generation of electricity - ''Truck Electrification'' 42 volts, DC and/ or AC; All electrically driven auxiliaries; Power on demand - manage electrical loads; Benefits include: increased fuel efficiency, reduced emission both when truck is idling and moving down the road.

Susan Rogers

2001-12-12T23:59:59.000Z

46

COAL & POWER SYSTEMS  

NLE Websites -- All DOE Office Websites (Extended Search)

COAL & POWER SYSTEMS COAL & POWER SYSTEMS STRATEGIC & MULTI-YEAR PROGRAM PLANS U.S. DEPARTMENT OF ENERGY * OFFICE OF FOSSIL ENERGY GREENER, SOONER... THROUGH TECHNOLOGY INTRODUCTION .......... i-1 STRATEGIC PLAN ........ 1-1 PROGRAM PLANS Vision 21 .......................... 2-1 Central Power Systems ...... 3-1 Distributed Generation ..... 4-1 Fuels ................................ 5-1 Carbon Sequestration ....... 6-1 Advanced Research ........... 7-1 TABLE OF CONTENTS STRATEGIC & MULTI-YEAR PROGRAM PLANS STRENGTH THROUGH SCIENCE... A "GREENER, SOONER" PHILOSOPHY Coal, natural gas, and oil fuel about 70 percent of the electricity generated in the United States. As promising as renewable and other alternative fuels are, it will be several decades before they can make significant energy contributions to the Nation's

47

Power line detection system  

DOE Patents (OSTI)

A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard. 4 figs.

Latorre, V.R.; Watwood, D.B.

1994-09-27T23:59:59.000Z

48

Power line detection system  

DOE Patents (OSTI)

A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard.

Latorre, Victor R. (Tracy, CA); Watwood, Donald B. (Tracy, CA)

1994-01-01T23:59:59.000Z

49

Demand Response For Power System Reliability: FAQ  

SciTech Connect

Demand response is the most underutilized power system reliability resource in North America. Technological advances now make it possible to tap this resource to both reduce costs and improve. Misconceptions concerning response capabilities tend to force loads to provide responses that they are less able to provide and often prohibit them from providing the most valuable reliability services. Fortunately this is beginning to change with some ISOs making more extensive use of load response. This report is structured as a series of short questions and answers that address load response capabilities and power system reliability needs. Its objective is to further the use of responsive load as a bulk power system reliability resource in providing the fastest and most valuable ancillary services.

Kirby, Brendan J [ORNL

2006-12-01T23:59:59.000Z

50

Cyber security in power systems .  

E-Print Network (OSTI)

??Many automation and power control systems are integrated into the 'Smart Grid' concept for efficiently managing and delivering electric power. This integrated approach created several… (more)

Sridharan, Venkatraman

2012-01-01T23:59:59.000Z

51

Power System Electromagnetic Compatibility  

Science Conference Proceedings (OSTI)

The potential for man-made electromagnetic interference has existed since the construction of the first electric power system. As the use of electricity expanded during the first few decades of the twentieth century, the number of sources of electromagnetic interference, as well as the number of receptors, burgeoned. With the proliferation of sources and receptors, the engineering study of electromagnetic interference--sometimes called radio noise, electrical noise, or radio-frequency interference--becam...

2000-12-19T23:59:59.000Z

52

Portable battery powered system  

SciTech Connect

In a exemplary embodiment, a battery conditioning system monitors battery conditioning and includes a memory for storing data based thereon; for example, data may be stored representative of available battery capacity as measured during a deep discharge cycle. With a microprocessor monitoring battery operation of a portable unit, a measure of remaining battery capacity can be calculated and displayed. Where the microprocessor is permanently secured to the battery so as to receive operating power therefrom during storage and handling, the performance of a given battery in actual use can be accurately judged since the battery system can itself maintain a count of accumulated hours of use and other relevant parameters.

Koenck, S. E.

1985-11-12T23:59:59.000Z

53

Solar powered desalination system  

E-Print Network (OSTI)

1.13: California Power Generation by Source……………………………………31for hydro- electric power generation would be reached inother end users include the power generation industry (4%),

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

54

Solar powered desalination system  

E-Print Network (OSTI)

2008, uses concentrated solar power to split water. Figurethe main reason the potential for solar power is boundless.a clean energy source, solar power is inexhaustible, fairly

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

55

Power control system and method  

SciTech Connect

A power system includes an energy harvesting device, a battery coupled to the energy harvesting device, and a circuit coupled to the energy harvesting device and the battery. The circuit is adapted to deliver power to a load by providing power generated by the energy harvesting device to the load without delivering excess power to the battery and to supplement the power generated by the energy harvesting device with power from the battery if the power generated by the energy harvesting device is insufficient to fully power the load. A method of operating the power system is also provided.

Steigerwald, Robert Louis (Burnt Hills, NY); Anderson, Todd Alan (Niskayuna, NY)

2008-02-19T23:59:59.000Z

56

Portable battery powered system  

SciTech Connect

In an exemplary embodiment, a battery monitoring system includes sensors for monitoring battery parameters and a memory for storing data based thereon; for example, data may be stored representative of available battery capacity as measured during a deep discharge cycle, and by monitoring battery current thereafter during operation, a relatively accurate measure of remaining battery capacity becomes available. The battery monitoring system may include programmed processor circuitry and may be secured to the battery so as to receive operating power therefrom during storage and handling; thus, the performance of a given battery in actual use can be accurately judged since the battery system can itself maintain a count of accumulated hours of use and other relevant parameters.

Koenck, S.E.

1984-06-19T23:59:59.000Z

57

Turbine power plant system  

SciTech Connect

A turbine power plant system consisting of three sub-systems; a gas turbine sub-system, an exhaust turbine sub-system, and a steam turbine sub-system. The three turbine sub-systems use one external fuel source which is used to drive the turbine of the gas turbine sub-system. Hot exhaust fluid from the gas turbine sub-system is used to drive the turbines of the exhaust turbine sub-system and heat energy from the combustion chamber of the gas turbine sub-system is used to drive the turbine of the steam turbine sub-system. Each sub-system has a generator. In the gas turbine sub-system, air flows through several compressors and a combustion chamber and drives the gas turbine. In the exhaust turbine sub-system, hot exhaust fluid from the gas turbine sub-system flows into the second passageway arrangement of first and fourth heat exchangers and thus transfering the heat energy to the first passageway arrangement of the first and fourth heat exchangers which are connected to the inlets of first and second turbines, thus driving them. Each turbine has its own closed loop fluid cycle which consists of the turbine and three heat exchangers and which uses a fluid which boils at low temperatures. A cooler is connected to a corresponding compressor which forms another closed loop system and is used to cool the exhaust fluid from each of the two above mentioned turbines. In the steam turbine sub-system, hot fluid is used to drive the steam turbine and then it flows through a fluid duct, to a first compressor, the first fluid passageway arrangement of first and second heat exchangers, the second passageway of the first heat exchanger, the combustion chamber of the gas turbine where it receives heat energy, and then finally to the inlet of the steam turbine, all in one closed loop fluid cycle. A cooler is connected to the second passageway of the second heat exchanger in a closed loop fluid cycle, which is used to cool the turbine exhaust.

Papastavros, D.

1985-03-05T23:59:59.000Z

58

Power Systems Development Facility  

DOE Green Energy (OSTI)

This report discusses Test Campaign TC12 of the Kellogg Brown & Root, Inc. (KBR) Transport Gasifier train with a Siemens Westinghouse Power Corporation (SW) particle filter system at the Power Systems Development Facility (PSDF) located in Wilsonville, Alabama. The Transport Gasifier is an advanced circulating fluidized-bed reactor designed to operate as either a combustor or a gasifier using a particulate control device (PCD). While operating as a gasifier, either air or oxygen can be used as the oxidant. Test run TC12 began on May 16, 2003, with the startup of the main air compressor and the lighting of the gasifier start-up burner. The Transport Gasifier operated until May 24, 2003, when a scheduled outage occurred to allow maintenance crews to install the fuel cell test unit and modify the gas clean-up system. On June 18, 2003, the test run resumed when operations relit the start-up burner, and testing continued until the scheduled end of the run on July 14, 2003. TC12 had a total of 733 hours using Powder River Basin (PRB) subbituminous coal. Over the course of the entire test run, gasifier temperatures varied between 1,675 and 1,850 F at pressures from 130 to 210 psig.

None

2003-07-01T23:59:59.000Z

59

Flex power perspectives of indirect power system control through...  

Open Energy Info (EERE)

power perspectives of indirect power system control through dynamic power price (Smart Grid Project) Jump to: navigation, search Project Name Flex power perspectives of indirect...

60

Solar powered desalination system  

E-Print Network (OSTI)

photon capture area and electrical power consumption. Bothcapture area (m 2 ) Electrical power consumption (kWh/kg HType 2 Type 3 Type 4 Electrical power consumption for these

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Body powered thermoelectric systems  

E-Print Network (OSTI)

Great interest exists for and progress has be made in the effective utilization of the human body as a possible power supply in hopes of powering such applications as sensors and continuously monitoring medical devices ...

Settaluri, Krishna Tej

2012-01-01T23:59:59.000Z

62

Power Conversion System Architectures  

Science Conference Proceedings (OSTI)

... of Transformers • Vacuum Pressure Impregnated (VPI) • Oil Immersed • Cast Coil Transformer Configurations • Single winding 5/24/2012 Power ...

2012-11-13T23:59:59.000Z

63

Switching power pulse system  

DOE Patents (OSTI)

A switching system for delivering pulses of power from a source to a load using a storage capacitor charged through a rectifier, and maintained charged to a reference voltage level by a transistor switch and voltage comparator. A thyristor is triggered to discharge the storage capacitor through a saturable reactor and fractional turn saturable transformer having a secondary to primary turn ratio N of n:l/n = n[sup 2]. The saturable reactor functions as a soaker'' while the thyristor reaches saturation, and then switches to a low impedance state. The saturable transformer functions as a switching transformer with high impedance while a load coupling capacitor charges, and then switches to a low impedance state to dump the charge of the storage capacitor into the load through the coupling capacitor. The transformer is comprised of a multilayer core having two secondary windings tightly wound and connected in parallel to add their output voltage and reduce output inductance, and a number of single turn windings connected in parallel at nodes for the primary winding, each single turn winding linking a different one of the layers of the multilayer core. The load may be comprised of a resistive beampipe for a linear particle accelerator and capacitance of a pulse forming network. To hold off discharge of the capacitance until it is fully charged, a saturable core is provided around the resistive beampipe to isolate the beampipe from the capacitance until it is fully charged. 5 figs.

Aaland, K.

1983-08-09T23:59:59.000Z

64

Uniform power plant identification system  

Science Conference Proceedings (OSTI)

In the seventies in the Federal Republic of Germany a uniform power plant identification system (Kraftwerks-Kennzeichen-System, KKS) was developed and introduced. It allows to keep the identification by all engineering disciplines from planning to waste management for any type of power plant. The paper explains the historical development, the structure and the application of this system.

Christiansen, W. (RWE Energie AG, Hauptverwaltung, Essen (DE)); Pannenbacker, K. (GABO mbH, Erlangen (DE)); Popp, H. (Siemens AG, Bereich Anlagentechnik, Erlangen (DE)); Seltmann, A. (ABB Kraftwerke AG, Mannheim (DE))

1990-01-01T23:59:59.000Z

65

Summary - Demonstration Bulk Vitrification System (DBVS) for Low-Actvity Waste at Hanford  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DBVS DBVS ETR Report Date: September 2006 ETR-3 United States Department of Energy Office of Environmental Management (DOE-EM) External Technical Review of the Demonstration Bulk Vitrification System (DBVS) for Low Activity Waste (LAW) at Hanford Why DOE-EM Did This Review The Department of Energy (DOE) is charged with the safe retrieval, treatment and disposal of 53 million gallons of Hanford radioactive waste. The Waste Treatment Plant (WTP) is being designed to treat and vitrify the High Level Waste (HLW) fraction in 20-25 years. The WTP is undersized for vitrifying the LAW fraction over the same time frame. The DOE is evaluating Bulk Vitrification as an alternative to increasing the size of the WTP LAW treatment process. Bulk vitrification is an in-container melting

66

POWER SYSTEMS DEVELOPMENT FACILITY  

Science Conference Proceedings (OSTI)

This report discusses test campaign GCT3 of the Halliburton KBR transport reactor train with a Siemens Westinghouse Power Corporation (Siemens Westinghouse) particle filter system at the Power Systems Development Facility (PSDF) located in Wilsonville, Alabama. The transport reactor is an advanced circulating fluidized-bed reactor designed to operate as either a combustor or a gasifier using one of two possible particulate control devices (PCDs). The transport reactor was operated as a pressurized gasifier during GCT3. GCT3 was planned as a 250-hour test run to commission the loop seal and continue the characterization of the limits of operational parameter variations using a blend of several Powder River Basin coals and Bucyrus limestone from Ohio. The primary test objectives were: (1) Loop Seal Commissioning--Evaluate the operational stability of the loop seal with sand and limestone as a bed material at different solids circulation rates and establish a maximum solids circulation rate through the loop seal with the inert bed. (2) Loop Seal Operations--Evaluate the loop seal operational stability during coal feed operations and establish maximum solids circulation rate. Secondary objectives included the continuation of reactor characterization, including: (1) Operational Stability--Characterize the reactor loop and PCD operations with short-term tests by varying coal feed, air/coal ratio, riser velocity, solids circulation rate, system pressure, and air distribution. (2) Reactor Operations--Study the devolatilization and tar cracking effects from transient conditions during transition from start-up burner to coal. Evaluate the effect of process operations on heat release, heat transfer, and accelerated fuel particle heat-up rates. Study the effect of changes in reactor conditions on transient temperature profiles, pressure balance, and product gas composition. (3) Effects of Reactor Conditions on Syngas Composition--Evaluate the effect of air distribution, steam/coal ratio, solids circulation rate, and reactor temperature on CO/CO{sub 2} ratio, H{sub 2}/converted carbon ratio, gasification rates, carbon conversion, and cold and hot gas efficiencies. Test run GCT3 was started on December 1, 2000, with the startup of the thermal oxidizer fan, and was completed on February 1, 2001. This test was conducted in two parts; the loop seal was commissioned during the first part of this test run from December 1 through 15, which consisted of hot inert solids circulation testing. These initial tests provided preliminary data necessary to understand different parameters associated with the operation and performance of the loop seal. The loop seal was tested with coal feed during the second part of the test run and additional data was gathered to analyze reactor operations and to identify necessary modifications to improve equipment and process performance. In the second part of GCT3, the gasification portion of the test, from January 20 to February 1, 2001, the mixing zone and riser temperatures were varied between 1,675 and 1,825 F at pressures ranging from 200 to 240 psig. There were 306 hours of solid circulation and 184 hours of coal feed attained in GCT3.

Unknown

2002-05-01T23:59:59.000Z

67

Power system - Energy Innovation Portal  

The control method may include selecting one of a plurality of modes of operation of the power system. Additionally, the control method may include co ...

68

Switching power pulse system  

DOE Patents (OSTI)

A switching system for delivering pulses of power from a source (10) to a load (20) using a storage capacitor (C3) charged through a rectifier (D1, D2), and maintained charged to a reference voltage level by a transistor switch (Q1) and voltage comparator (12). A thyristor (22) is triggered to discharge the storage capacitor through a saturable reactor (18) and fractional turn saturable transformer (16) having a secondary to primary turn ratio N of n:l/n=n.sup.2. The saturable reactor (18) functions as a "soaker" while the thyristor reaches saturation, and then switches to a low impedance state. The saturable transformer functions as a switching transformer with high impedance while a load coupling capacitor (C4) charges, and then switches to a low impedance state to dump the charge of the storage capacitor (C3) into the load through the coupling capacitor (C4). The transformer is comprised of a multilayer core (26) having two secondary windings (28, 30) tightly wound and connected in parallel to add their output voltage and reduce output inductance, and a number of single turn windings connected in parallel at nodes (32, 34) for the primary winding, each single turn winding linking a different one of the layers of the multilayer core. The load may be comprised of a resistive beampipe (40) for a linear particle accelerator and capacitance of a pulse forming network (42). To hold off discharge of the capacitance until it is fully charged, a saturable core (44) is provided around the resistive beampipe (40) to isolate the beampipe from the capacitance (42) until it is fully charged.

Aaland, Kristian (Livermore, CA)

1983-01-01T23:59:59.000Z

69

Reactive power compensating system  

DOE Patents (OSTI)

The reactive power of an induction machine is compensated by providing fixed capacitors on each phase line for the minimum compensation required, sensing the current on one line at the time its voltage crosses zero to determine the actual compensation required for each phase, and selecting switched capacitors on each line to provide the balance of the compensation required.

Williams, Timothy J. (Redondo Beach, CA); El-Sharkawi, Mohamed A. (Renton, WA); Venkata, Subrahmanyam S. (Seattle, WA)

1987-01-01T23:59:59.000Z

70

Reactive Power Compensating System.  

DOE Patents (OSTI)

The circuit was designed for the specific application of wind-driven induction generators. It has great potential for application in any situation where a varying reactive power load is present, such as with induction motors or generators, or for transmission network compensation.

Williams, Timothy J.; El-Sharkawi, Mohamed A.; Venkata, Subrahmanyam S.

1985-01-04T23:59:59.000Z

71

EPRI Power System Dynamics Tutorial  

Science Conference Proceedings (OSTI)

Operation of today's increasingly complex power systems requires comprehensive training of system operators and operations engineers. By increasing their awareness and understanding of dynamic phenomena, the EPRI Power System Dynamics Tutorial can improve an operator's ability to take effective actioneither preventive or corrective. This latest version of the tutorial represents an update of key topics to reflect industry restructuring under the vision of the Federal Energy Regulatory Commission (FERC) a...

2009-07-27T23:59:59.000Z

72

Review of the Structure of Bulk Power Markets Grid of the Future White Paper  

Science Conference Proceedings (OSTI)

This paper is intended to provide an understanding of the needs of a restructured electricity market and some of the market methods and systems that have developed to address those needs. Chapter 2 discusses the historic market framework of vertically integrated utilities. Chapter 3 introduces the changes to the vertically integrated utility brought about by restructuring. It discusses generation and transmission planning, control and the regulatory process. It also summarizes reliability, security and adequacy. Chapter 4 discusses the basic structures of generation and transmission markets along with transmission-congestion contracts (TCCs) and transmission pricing principles. A discussion is given of the 12 ancillary services needed to reliably operate the power system. Chapter 4 also deals with the role of transmission in opening up markets to competition. In California increments (incs) and decrements (decs) are bid to overcome price differences in different zones caused by congestion. In PJM, any member can purchase Fixed Transmission Rights (FTRs) which allows the member to ''collect rent'' on congested lines and essentially obtain a hedge against congestion. There has been a worrisome slowdown in the growth of the transmission system in the United States since about the mid 70's. However, there are methods for providing incentives for construction of new transmission using tariffs. The California and PJM transmission planning processes are outlined. The Federal Energy Regulatory Commission (FERC) has recently issued a proposed rulemaking on Regional Transmission Organizations (RTOs) which stated that the traditional methods of grid management are showing signs of strain and may be inadequate to support efficient and reliable transmission operations. Chapter 5 provides examples of market implementations and a discussion of the price spikes seen in the Midwest in the summers of 1998 and 1999. An examination of six restructured market systems is performed in some detail. The systems are California, PJM (Pennsylvania, New Jersey, Maryland), New England, United Kingdom (UK), Alberta, and Australia. Finally, there is a discussion of the price spikes that occurred in the Midwest this summer from the viewpoint of market performance. Chapter 6 deals with the concept of load as a resource. This is a novel idea that holds tremendous promise as technological advances permit real time control of loads based on the user's economic criteria. The user may be willing to curtail operations for some period of time when the spot price reaches a certain level, or the user may be willing to sell ancillary services to the system. Chapter 7 outlines the research needs presented by a restructured industry and the vital federal role in meeting these needs. Without federal participation, research to advance the public good will not be performed by an industry now focused on profit. Chapter 8 provides a summary and concluding remarks.

Kirby, B.J.

2000-05-02T23:59:59.000Z

73

Energy Storage Technology and Application Cost and Performance Data Base-2012: Bulk Energy Storage Systems  

Science Conference Proceedings (OSTI)

This report updates EPRI reports 1020071, Energy Storage Technology and Application Cost and Performance Data Base-2010, and 1021932, Energy Storage Technology and Application Cost and Performance Data Base-2011, which presents 2011 updated data on the cost, performance, and capabilities of energy storage systems only for bulk energy storage applications in a Excel workbook database. The distributed options detailed in the index can be found in the 2011 product, 1021932. The goal of this research was to ...

2012-02-27T23:59:59.000Z

74

Interface Width and Bulk Stability: requirements for the simulation of Deeply Quenched Liquid-Gas Systems  

E-Print Network (OSTI)

Simulations of liquid-gas systems with extended interfaces are observed to fail to give accurate results for two reasons: the interface can get ``stuck'' on the lattice or a density overshoot develops around the interface. In the first case the bulk densities can take a range of values, dependent on the initial conditions. In the second case inaccurate bulk densities are found. In this communication we derive the minimum interface width required for the accurate simulation of liquid gas systems with a diffuse interface. We demonstrate this criterion for lattice Boltzmann simulations of a van der Waals gas. When combining this criterion with predictions for the bulk stability we can predict the parameter range that leads to stable and accurate simulation results. This allows us to identify parameter ranges leading to high density ratios of over 1000. This is despite the fact that lattice Boltzmann simulations of liquid-gas systems were believed to be restricted to modest density ratios of less than 20.

A. J. Wagner; C. M. Pooley

2007-06-11T23:59:59.000Z

75

Solar powered desalination system  

E-Print Network (OSTI)

Fundamentals of Salt Water Desalination. New York: Elsevier,7. Lightbucket. Large scale desalination: is there enoughSystem for Seawater Desalination Plants. The Netherlands:

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

76

Radioisotope Power Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

into finished metal shapes by extrusion, rolling, forming, machining, assembly, and welding. Nondestructive testing and quality systems are employed throughout the process to...

77

Renewable Power Systems LLC | Open Energy Information  

Open Energy Info (EERE)

Renewable Power Systems, LLC Place Averill Park, New York Zip 12018 Sector Solar Product Albany, New York-based solar systems installer. References Renewable Power Systems, LLC1...

78

Modeling power system load using intelligent methods.  

E-Print Network (OSTI)

??Modern power systems are integrated, complex, dynamic systems. Due to the complexity, power system operation and control need to be analyzed using numerical simulation. The… (more)

He, Shengyang

2011-01-01T23:59:59.000Z

79

NETL: Turbine Projects - Advanced Coal Power Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Advanced Coal Power Systems Turbine Projects Advanced Coal Power Systems SOFC Hybrid System for Distributed Power Generation DataFact Sheets SOFC Hybrid System PDF In-House FCT...

80

NETL: Coal and Power Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Systems Systems Technologies Coal and Power Systems Advancing our Nation's Portfolio of Coal RD&D Technologies - Rotating Images Advancing our Nation's Portfolio of Coal RD&D Technologies - Read More! Focus of NETL RD&D RD&D efforts in coal and power systems fall into three categories: Technologies that enable existing coal power plants to cost-effectively meet environmental requirements. NETL and its research partners are developing environmental control technologies for retrofitting existing power plants, with application to new plants as well. Key areas of research include cost-effective control of mercury, nitrogen oxides, sulfur dioxide, and fine particulate emissions; beneficial uses for coal utilization byproducts; and innovations to minimize the impact of

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

CALCULATION OF DEMONSTRATION BULK VITRIFICATION SYSTEM MELTER INLEAKAGE AND OFF-GAS GENERATION RATE  

SciTech Connect

The River Protection Project (RPP) mission is to safely store, retrieve, treat, immobilize, and dispose of the Hanford Site tank waste. The Demonstration Bulk Vitrification System (DBVS) is a research and development project whose objective is to demonstrate the suitability of Bulk Vitrification treatment technology waste form for disposing of low-activity waste from the Tank Farms. The objective of this calculation is to determine the DBVS melter inleakage and off-gas generation rate based on full scale testing data from 38D. This calculation estimates the DBVS melter in leakage and gas generation rate based on test data. Inleakage is estimated before the melt was initiated, at one point during the melt, and at the end of the melt. Maximum gas generation rate is also estimated.

MAY TH

2008-04-16T23:59:59.000Z

82

Power Systems Advanced Research  

DOE Green Energy (OSTI)

In the 17 quarters of the project, we have accomplished the following milestones - first, construction of the three multiwavelength laser scattering machines for different light scattering study purposes; second, build up of simulation software package for simulation of field and laboratory particulates matters data; third, carried out field online test on exhaust from combustion engines with our laser scatter system. This report gives a summary of the results and achievements during the project's 16 quarters period. During the 16 quarters of this project, we constructed three multiwavelength scattering instruments for PM2.5 particulates. We build up a simulation software package that could automate the simulation of light scattering for different combinations of particulate matters. At the field test site with our partner, Alturdyne, Inc., we collected light scattering data for a small gas turbine engine. We also included the experimental data feedback function to the simulation software to match simulation with real field data. The PM scattering instruments developed in this project involve the development of some core hardware technologies, including fast gated CCD system, accurately triggered Passively Q-Switched diode pumped lasers, and multiwavelength beam combination system. To calibrate the scattering results for liquid samples, we also developed the calibration system which includes liquid PM generator and size sorting instrument, i.e. MOUDI. In this report, we give the concise summary report on each of these subsystems development results.

California Institute of Technology

2007-03-31T23:59:59.000Z

83

Pairing in 4-component fermion systems: the bulk limit of SU(4)-symmetric Hamiltonians  

E-Print Network (OSTI)

Fermion systems with more than two components can exhibit pairing condensates of much more complex structure than the well-known single BCS condensate of spin-up and spin-down fermions. In the framework of the exactly solvable SO(8) Richardson-Gaudin model with SU(4)-symmetric Hamiltonians, we show that the BCS approximation remains valid in the thermodynamic limit of large systems for describing the ground state energy and the canonical and quasiparticle excitation gaps. Correlations beyond BCS pairing give rise to a spectrum of collective excitations, but these do not affect the bulk energy and quasiparticle gaps.

Bertsch, G F; Errea, B; Esebbag, C

2009-01-01T23:59:59.000Z

84

Power management system - Energy Innovation Portal  

A method of managing power resources for an electrical system of a vehicle may include identifying enabled power sources from among a plurality of power sources in ...

85

Solar-powered cooling system  

SciTech Connect

A solar-powered adsorption-desorption refrigeration and air conditioning system uses nanostructural materials made of high specific surface area adsorption aerogel as the adsorptive media. Refrigerant molecules are adsorbed on the high surface area of the nanostructural material. A circulation system circulates refrigerant from the nanostructural material to a cooling unit.

Farmer, Joseph C

2013-12-24T23:59:59.000Z

86

Stopping Power of Different Ions in Si Measured with a Bulk Sample Method and Bayesian Inference Data Analysis  

SciTech Connect

The accuracy of ion beam analysis experiments depends critically on the stopping power values available. While for H and He ions accuracies normally better than 5% are achieved by usual interpolative schemes such as SRIM, for heavier ions the accuracy is worse. One of the main reasons is that the experimental data bases are very sparse, even for important materials such as Si. New measurements are therefore needed. Measurement of stopping power is often made with transmission in thin films, with the usual problems of film thickness homogeneity. We have previously developed an alternative method based on measuring bulk spectra, and fitting the yield by treating the stopping power as a fit parameter in a Bayesian inference Markov chain Monte Carlo procedure included in the standard IBA code NDF. We report on improvements of the method and on its application to the determination of the stopping power of {sup 7}Li in Si. To validate the method, we also apply it to the stopping of {sup 4}He in Si, which is known with 2% accuracy.

Barradas, N. P.; Alves, E. [Instituto Tecnologico e Nuclear, E.N. 10, Sacavem 2686-953 (Portugal); Centro de Fisica Nuclear da Universidade de Lisboa, Av. Prof. Gama Pinto 2, Lisboa (Portugal); Siketic, Z.; Radovic, I. Bogdanovic [Ruder Boskovic Institute, P.O. Box 180, Zagreb 10002 (Croatia)

2009-03-10T23:59:59.000Z

87

Dynamic modeling of power systems  

Science Conference Proceedings (OSTI)

Morgantown Energy Technology Center`s (METC) Process and Project Engineering (P&PE) personnel continue to refine and modify dynamic modeling or simulations for advanced power systems. P&PE, supported by Gilbert/Commonwealth, Inc. (G/C), has adapted PC/TRAX commercial dynamic software to include equipment found in advanced power systems. PC/TRAX`s software contains the equations that describe the operation of standard power plant equipment such as gas turbines, feedwater pumps, and steam turbines. The METC team has incorporated customized dynamic models using Advanced Continuous Simulation Language (ACSL) code for pressurized circulating fluidized-bed combustors, carbonizers, and other components that are found in Advanced Pressurized Fluidized-Bed Combustion (APFBC) systems. A dynamic model of a commercial-size APFBC power plant was constructed in order to determine representative operating characteristics of the plant and to gain some insight into the best type of control system design. The dynamic model contains both process and control model components. This presentation covers development of a model used to describe the commercial APFBC power plant. Results of exercising the model to simulate plant performance are described and illustrated. Information gained during the APFBC study was applied to a dynamic model of a 1-1/2 generation PFBC system. Some initial results from this study are also presented.

Reed, M.; White, J.

1995-12-01T23:59:59.000Z

88

Nucleation Processes in Deep Convection Simulated by a Cloud-System-Resolving Model with Double-Moment Bulk Microphysics  

Science Conference Proceedings (OSTI)

A novel type of limited double-moment scheme for bulk microphysics is presented here for cloud-system-resolving models (CSRMs). It predicts the average size of cloud droplets and crystals, which is important for representing the radiative impact ...

Vaughan T. J. Philips; Leo J. Donner; Stephen T. Garner

2007-03-01T23:59:59.000Z

89

Sathian Sun Power Systems | Open Energy Information  

Open Energy Info (EERE)

Sathian Sun Power Systems Jump to: navigation, search Name Sathian Sun Power Systems Place Salem, Andhra Pradesh, India Sector Solar Product Manufacturer of solar street lights and...

90

ADVANCED POWER SYSTEMS ASH BEHAVIOR IN POWER SYSTEMS  

SciTech Connect

The overall goal of this initiative is to develop fundamental knowledge of ash behavior in power systems for the purpose of increasing power production efficiency, reducing operation and maintenance costs, and reducing greenhouse gas emissions into the atmosphere. The specific objectives of this initiative focus primarily on ash behavior related to advanced power systems and include the following: ? Determine the current status of the fundamental ash interactions and deposition formation mechanisms as already reported through previous or ongoing projects at the EERC or in the literature. ? Determine sintering mechanisms for temperatures and particle compositions that are less well known and remain for the most part undetermined. ? Identify the relationship between the temperature of critical viscosity (Tcv ) as measured in a viscometer and the crystallization occurring in the melt. ? Perform a literature search on the use of heated-stage microscopy (HSM) for examining in situ ash-sintering phenomena and then validate the use of HSM in the determination of viscosity in spherical ash particles. ? Ascertain the formation and stability of specific mineral or amorphous phases in deposits typical of advanced power systems. ? Evaluate corrosion for alloys being used in supercritical combustion systems.

CHRISTOPHER J. ZYGARLICKE; DONALD P. MCCOLLOR; JOHN P. KAY; MICHAEL L. SWANSON

1998-09-01T23:59:59.000Z

91

ADVANCED POWER SYSTEMS ASH BEHAVIOR IN POWER SYSTEMS  

Science Conference Proceedings (OSTI)

The overall goal of this initiative is to develop fundamental knowledge of ash behavior in power systems for the purpose of increasing power production efficiency, reducing operation and maintenance costs, and reducing greenhouse gas emissions into the atmosphere. The specific objectives of this initiative focus primarily on ash behavior related to advanced power systems and include the following: ? Determine the current status of the fundamental ash interactions and deposition formation mechanisms as already reported through previous or ongoing projects at the EERC or in the literature. ? Determine sintering mechanisms for temperatures and particle compositions that are less well known and remain for the most part undetermined. ? Identify the relationship between the temperature of critical viscosity (Tcv ) as measured in a viscometer and the crystallization occurring in the melt. ? Perform a literature search on the use of heated-stage microscopy (HSM) for examining in situ ash-sintering phenomena and then validate the use of HSM in the determination of viscosity in spherical ash particles. ? Ascertain the formation and stability of specific mineral or amorphous phases in deposits typical of advanced power systems. ? Evaluate corrosion for alloys being used in supercritical combustion systems.

CHRISTOPHER J. ZYGARLICKE; DONALD P. MCCOLLOR; JOHN P. KAY; MICHAEL L. SWANSON

1998-09-01T23:59:59.000Z

92

Models for multimegawatt space power systems  

SciTech Connect

This report describes models for multimegawatt, space power systems which Sandia's Advanced Power Systems Division has constructed to help evaluate space power systems for SDI's Space Power Office. Five system models and models for associated components are presented for both open (power system waste products are exhausted into space) and closed (no waste products) systems: open, burst mode, hydrogen cooled nuclear reactor -- turboalternator system; open, hydrogen-oxygen combustion turboalternator system; closed, nuclear reactor powered Brayton cycle system; closed, liquid metal Rankine cycle system; and closed, in-core, reactor therminonic system. The models estimate performance and mass for the components in each of these systems. 17 refs., 8 figs., 15 tabs.

Edenburn, M.W.

1990-06-01T23:59:59.000Z

93

Conceptual Design of a Strategic Power Infrastructure Defense (SPID) System: EPRI/DoD Complex Interactive Networks/Systems Initiativ e; First Annual Report  

Science Conference Proceedings (OSTI)

This report describes research sponsored by EPRI and the Department of Defense for the Initiative on Complex Interactive Networks / Systems. Through this initiative, the Advanced Power Technologies (APT) Consortium has developed a conceptual design of the Strategic Power Infrastructure Defense (SPID) system. This first annual report from the APT Consortium describes hidden failures and how they contribute to catastrophic failures of bulk power systems.

2000-05-24T23:59:59.000Z

94

[Recycle of contaminated scrap metal]: Task 1.3.2, Bulk solids feed system. Topical report, October 1993-- January 1996  

Science Conference Proceedings (OSTI)

A critical requirement in DOE`s efforts to recycle, reuse, and dispose of materials from its decontamination and decommissioning activities is the design of a robust system to process a wide variety of bulk solid feeds. The capability to process bulk solids will increase the range of materials and broaden the application of Catalytic Extraction Processing (CEP). The term bulk solids refers to materials that are more economically fed into the top of a molten metal bath than by submerged injection through a tuyere. Molten Metal Technology, Inc. (MMT) has characterized CEP`s ability to process bulk solid feed materials and has achieved significant growth in the size of bulk solid particles compatible with Catalytic Extraction Processing. Parametric experimental studies using various feed materials representative of the components of various DOE waste streams have validated design models which establish the reactor operating range as a function of feed material, mass flow rate, and particle size. MMT is investigating the use of a slurry system for bulk solid addition as it is the most efficient means for injecting soils, sludges, and similar physical forms into a catalytic processing unit. MMT is continuing to evaluate condensed phase product removal systems and alternative energy addition sources to enhance the operating efficiency of bulk solids CEP units. A condensed phase product removal system capable of on-demand product removal has been successfully demonstrated. MMT is also investigating the use of a plasma arc torch to provide supplemental heating during bulk solids processing. This comprehensive approach to bulk solids processing is expected to further improve overall process efficiency prior to the deployment of CEP for the recycle, reuse, and disposal of materials from DOE decontamination and decommissioning Activities.

NONE

1996-07-01T23:59:59.000Z

95

TPX power systems design overview  

SciTech Connect

The power systems for the Tokamak Physics Experiment (TPX) supply the Toroidal Field (TF). Poloidal Field (PF), Field Error Correction (FEC), and Fast Vertical Position Control (FVPC) coil systems, the Neutral Beam (NB), Ion Cyclotron (IC), Lower Hybrid (LH) and Electron Cyclotron (EC) heating and current drive systems, and all balance of plant loads. Existing equipment from the Tokamak Fusion Test Reactor (TFTR), including the motor-generator (MG) sets and the rectifiers, can be adapted for the supply of the TPX PF systems. A new TF power supply is required. A new substation is required for the heating and current drive systems (NB, IC, LH, and EC). The baseline TPX load can be taken directly from the grid without special provision, whereas if all upgrade options are undertaken, a modest amount of reactive compensation will be required. This paper describes the conceptual design of the power systems, with emphasis on the AC, TF, and PF Systems, and the quench protection of the superconducting coils.

Neumeyer, C. [Ebasco Services, Inc., New York, NY (United States); Bronner, G.; Lu, E.; Ramakrishnan, S. [Princeton Univ., NJ (United States). Plasma Physics Lab.; Jackson, M. [Lawrence Livermore National Lab., CA (United States)

1993-11-01T23:59:59.000Z

96

Catalog of DC Appliances and Power Systems  

SciTech Connect

This document catalogs the characteristics of current and potential future DC products and power systems.

Garbesi, Karina; Vossos, Vagelis; Shen, Hongxia

2010-10-13T23:59:59.000Z

97

2002CALIFORNIAPOWERMIX 2002 NET SYSTEM POWER CALCULATION  

E-Print Network (OSTI)

System Power Net System Power 62% Specific Purchases 35% Self-generation 3% Wind 741 Solar 0 Small Hydro,777 Net System Power, GWh Wind 2,805 Solar 864 Small Hydro 1,157 Geothermal 7,692 Biomass 1,954 Nuclear 22CALIFORNIA ENERGY COMMISSION APRIL 2003 300-03-002 2002CALIFORNIAPOWERMIX 2002 NET SYSTEM POWER

98

Solar energy power generation system  

SciTech Connect

A solar energy power generation system is described which consists of: (a) means for collecting and concentrating solar energy; (b) heat storage means; (c) Stirling engine means for producing power; (d) first heat transfer means for receiving the concentrated solar energy and for transferring heat to the heat storage means; and (e) second heat transfer means for controllably transferring heat from the storage means to the Stirling engine means and including a discharge heat pipe means for transferring heat to the Stirling engine means and further including means for inserting and withdrawing the discharge heat pipe means into and out of the heat storage means.

Nilsson, J.E.; Cochran, C.D.

1986-05-06T23:59:59.000Z

99

Application of EPRI's Transmission Reliability Evaluation for Large-Scale Systems (TRELSS) Program to Bonneville Power Administration System  

Science Conference Proceedings (OSTI)

Delivering power at the lowest cost while maintaining an acceptable level of reliability requires careful transmission planning. EPRI's Transmission Reliability Evaluation for Large-Scale Systems (TRELSS) can be used to analyze and quantify the reliability of bulk power systems to help determine the need for new transmission facilities. This report presents the results of reliability analyses for Bonneville Power Administration (BPA) using the TRELSS program.

1997-11-11T23:59:59.000Z

100

Study the power flow control of a power system with unified power flow controller.  

E-Print Network (OSTI)

??Electrical power systems is a large interconnected network that requires a careful design to maintain the system with continuous power flow operation without any limitations.… (more)

Peesari, Vakula

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Control system for cogenerative power plants  

Science Conference Proceedings (OSTI)

The paper presents a distributed control system for the realization of cogenerative supply of electricity and heat and, in given case, for their combination with waste heat recovery, particularly in combined (gas-steam) cycle industrial power plants. ... Keywords: cogenerative gas power plant, control of distributed parameter systems, distribution management system, electric power systems, optimization, process control, real time systems, simulation

Florin Hartescu

2008-08-01T23:59:59.000Z

102

2004 NET SYSTEM POWER CALCULATION COMMISSIONREPORT  

E-Print Network (OSTI)

System Power Self-Generation 5% Net System Power 31% Specific Purchases 64% Nuclear 34046 Wind 4090 Solar Specific Purchases 176,196 GWh Net System Power 85,288 GWh Wind 168 Solar 0 Small Hydro 958 Geothermal 2413 Power 31% Specific Purchases 64% Nuclear 34046 Wind 4090 Solar 743 Small Hydro 3711 Geothermal 11158

103

Memory exploration for low power, embedded systems  

Science Conference Proceedings (OSTI)

Keywords: cache simulator, design automation, low power design, low power embedded systems, memory exploration and optimization, memory hierarchy, off-chip data assignment

Wen-Tsong Shiue; Chaitali Chakrabarti

1999-06-01T23:59:59.000Z

104

Cheng Power Systems | Open Energy Information  

Open Energy Info (EERE)

technology based on rotating frequency, that improves output, efficiency and emissions of power generating plants. References Cheng Power Systems1 LinkedIn Connections CrunchBase...

105

Modeling Power Systems as Complex Adaptive Systems  

Science Conference Proceedings (OSTI)

Physical analogs have shown considerable promise for understanding the behavior of complex adaptive systems, including macroeconomics, biological systems, social networks, and electric power markets. Many of today's most challenging technical and policy questions can be reduced to a distributed economic control problem. Indeed, economically based control of large-scale systems is founded on the conjecture that the price-based regulation (e.g., auctions, markets) results in an optimal allocation of resources and emergent optimal system control. This report explores the state-of-the-art physical analogs for understanding the behavior of some econophysical systems and deriving stable and robust control strategies for using them. We review and discuss applications of some analytic methods based on a thermodynamic metaphor, according to which the interplay between system entropy and conservation laws gives rise to intuitive and governing global properties of complex systems that cannot be otherwise understood. We apply these methods to the question of how power markets can be expected to behave under a variety of conditions.

Chassin, David P.; Malard, Joel M.; Posse, Christian; Gangopadhyaya, Asim; Lu, Ning; Katipamula, Srinivas; Mallow, J V.

2004-12-30T23:59:59.000Z

106

Independent transmission system operators and their role in maintaining reliability in a restructured electric power industry  

Science Conference Proceedings (OSTI)

This report summarizes the current status of proposals to form Independent System Operators (ISOs) to operate high-voltage transmission systems in the United States and reviews their potential role in maintaining bulk power system reliability. As background information, the likely new industry structure, nature of deregulated markets, and institutional framework for bulk power system reliability are reviewed. The report identifies issues related to the formation of ISOs and their roles in markets and in reliability, and describes potential policy directions for encouraging the formation of effective ISOs and ensuring bulk system reliability. Two appendices are provided, which address: (1) system operation arrangements in other countries, and (2) summaries of regional U.S. ISO proposals.

NONE

1998-01-01T23:59:59.000Z

107

Synergetic Power Systems | Open Energy Information  

Open Energy Info (EERE)

Synergetic Power Systems Synergetic Power Systems Jump to: navigation, search Name Synergetic Power Systems Place Cambridge, Massachusetts Sector Buildings, Solar Product Start-up planning to install parabolic concentrated solar collector systems on large flat-roofed buildings to power their HVAC systems, and provide back-up and peak demand power. References Synergetic Power Systems[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Synergetic Power Systems is a company located in Cambridge, Massachusetts . References ↑ "Synergetic Power Systems" Retrieved from "http://en.openei.org/w/index.php?title=Synergetic_Power_Systems&oldid=351978" Categories: Clean Energy Organizations

108

Transient Stability Analysis of Power Systems with Energy Storage.  

E-Print Network (OSTI)

??Power systems can effectively damp power system oscillations through appropriate management of real or reactive power. This thesis addresses some problems in power system stability… (more)

WENG, CHIYUAN

2013-01-01T23:59:59.000Z

109

Solar powered unitized regenerative fuel cell system  

Science Conference Proceedings (OSTI)

Solar hydrogen system is a unique power system that can meet the power requirement for the energy future demand, in such a system the hydrogen used to be the energy carrier which can produced through electrolysis by using the power from the PV during ... Keywords: electrolyzer, fuel cell, hydrogen, photovoltaic, regenerative, solar hydrogen system

Salwan S. Dihrab; , Kamaruzzaman Sopian; Nowshad Amin; M. M. Alghoul; Azami Zaharim

2008-02-01T23:59:59.000Z

110

Flex power perspectives of indirect power system control through dynamic  

Open Energy Info (EERE)

Flex power perspectives of indirect power system control through dynamic Flex power perspectives of indirect power system control through dynamic power price (Smart Grid Project) Jump to: navigation, search Project Name Flex power perspectives of indirect power system control through dynamic power price Country Denmark Coordinates 56.26392°, 9.501785° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":56.26392,"lon":9.501785,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

111

System and method for advanced power management  

DOE Patents (OSTI)

A power management system is provided that includes a power supply means comprising a plurality of power supply strings, a testing means operably connected to said plurality of power supply strings for evaluating performance characteristics of said plurality of power supply strings, and a control means for monitoring power requirements and comprising a switching means for controlling switching of said plurality of power supply strings to said testing means.

Atcitty, Stanley (Albuquerque, NM); Symons, Philip C. (Surprise, AZ); Butler, Paul C. (Albuquerque, NM); Corey, Garth P. (Albuquerque, NM)

2009-07-28T23:59:59.000Z

112

Uninterruptible power supply (UPS) systems  

SciTech Connect

Use of this purchase specification is not mandatory. User should review the document and determine if it meets the user`s purpose. This document contains a fill-in-the-blanks guide specification for the procurement of uninterruptible power supply (UPS) systems greater than 10 kVA, organized as follows: Parts 1 through 7--technical requirements; Appendix A--technical requirements to be included in the proposal; Appendix B--UPS system data sheets to be completed by each bidder (Seller) and submitted with the proposal; Appendix C--general guidelines giving the specifier parameters for selecting a UPS system; it should be read before preparing an actual specification, and is not attached to the specification; Attachment 1--sketches prepared by the purchaser (Owner); Attachment 2--sample title page.

NONE

1997-04-01T23:59:59.000Z

113

Fuel cell powered irrigation system  

SciTech Connect

Set out herein is a fuel cell power plant for use with irrigation systems wherein the fuel cell is utilized to generate electric current to drive a pump motor. This pump motor drives a first water pump which receives water for distribution through a traveling irrigation system, the output of the first pump first conveyed into a condenser heat exchanger connected to a steam engine or turbine cycle. The fuel cell itself is contained within a boiler assembly and the heat of production of the electric power is used to generate steam which is sent to the steam engine. In the course of cooling the condenser gases of the steam engine the irrigating water is passed through a second pump driven by the steam engine and it is through this second pump that the pressure is raised sufficiently to allow for the necessary spraying fans. To improve the condenser efficiency part of the condensate or the ullage thereof is connected to one of the spray heads on the irrigation system in a venturi nozzle which thereby lowers the back pressure thereof. The lower portion of the condenser or the liquid part thereof is fed back through yet another condenser pump to the boiler to be regenerated into steam.

Jacobi, E.F.; Madden, M.R.

1982-01-12T23:59:59.000Z

114

Research on Integrating of Wind Power and Power System | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

More Documents & Publications Webinar Presentation: Energy Storage Solutions for Microgrids (November 2012) Impacts of Long-term Drought on Power Systems in the U.S. Southwest...

115

Power System Level Impacts of PHEVs  

Science Conference Proceedings (OSTI)

This paper presents investigations into various aspects of how plug-in hybrid electric vehicles (PHEVs) could impact the electric power system. The investigation is focused on impacts on the power system infrastructure and impacts on the primary fuel ...

2009-01-01T23:59:59.000Z

116

Ionic Power Systems Ltd | Open Energy Information  

Open Energy Info (EERE)

Ionic Power Systems Ltd Ionic Power Systems Ltd Jump to: navigation, search Name Ionic Power Systems Ltd. Place San Diego, California Zip 92126 Product Ionix Power Systems, Ltd. is a developer of new and innovative products and tools designed to aid in the development of next-generation energy technologies such as batteries, fuel cells, and advanced capacitors. References Ionic Power Systems Ltd.[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Ionic Power Systems Ltd. is a company located in San Diego, California . References ↑ "Ionic Power Systems Ltd." Retrieved from "http://en.openei.org/w/index.php?title=Ionic_Power_Systems_Ltd&oldid=347099" Categories:

117

Power Systems Integration Laboratory (Fact Sheet)  

Science Conference Proceedings (OSTI)

This fact sheet describes the purpose, lab specifications, applications scenarios, and information on how to partner with NREL's Power Systems Integration Laboratory at the Energy Systems Integration Facility. At NREL's Power Systems Integration Laboratory in the Energy Systems Integration Facility (ESIF), research focuses on developing and testing large-scale distributed energy systems for grid-connected, stand-alone, and microgrid applications. The laboratory can accommodate large power system components such as inverters for photovoltaic (PV) and wind systems, diesel and natural gas generators, battery packs, microgrid interconnection switchgear, and vehicles. Closely coupled with the research electrical distribution bus at the ESIF, the Power Systems Integration Laboratory will offer power testing capability of megawatt-scale DC and AC power systems, as well as advanced hardware-in-the-loop and model-in-the-loop simulation capabilities. Thermal heating and cooling loops and fuel also allow testing of combined heating/cooling and power systems (CHP).

Not Available

2011-10-01T23:59:59.000Z

118

SITE ELECTRICAL POWER SYSTEM DESCRIPTION DOCUMENT  

Science Conference Proceedings (OSTI)

The Site Electrical Power System receives and distributes utility power to all North Portal site users. The major North Portal users are the Protected Area including the subsurface facility and Balance of Plant areas. The system is remotely monitored and controlled from the Surface Operations Monitoring and Control System. The system monitors power quality and provides the capability to transfer between Off-Site Utility and standby power (including dedicated safeguards and security power). Standby power is only distributed to selected loads for personnel safety and essential operations. Security power is only distributed to essential security operations. The standby safeguards and security power is independent from all other site power. The system also provides surface lighting, grounding grid, and lightning protection for the North Portal. The system distributes power during construction, operation, caretaker, and closure phases of the repository. The system consists of substation equipment (disconnect switches, breakers, transformers and grounding equipment) and power distribution cabling from substation to the north portal switch gear building. Additionally, the system includes subsurface facility substation (located on surface), switch-gear, standby diesel generators, underground duct banks, power cables and conduits, switch-gear building and associated distribution equipment for power distribution. Each area substation distributes power to the electrical loads and includes the site grounding, site lighting and lightning protection equipment. The site electrical power system distributes power of sufficient quantity and quality to meet users demands. The Site Electrical Power System interfaces with the North Portal surface systems requiring electrical power. The system interfaces with the Subsurface Electrical Distribution System which will supply power to the underground facilities from the North Portal. Power required for the South Portal and development side activities of the subsurface facility will be provided at the South Portal by the Subsurface Electrical Distribution System. The Site Electrical Power System interfaces with the Off-Site Utility System for the receipt of power. The System interfaces with the Surface Operations Monitoring and Control System for monitoring and control. The System interfaces with MGR Site Layout System for the physical location of equipment and power distribution.

E.P. McCann

1999-04-16T23:59:59.000Z

119

Prognostic Watch of the Electric Power System  

E-Print Network (OSTI)

A prognostic watch of the electric power system is framed up for prognostics of a threat of thermalisation.

Stefanov, Stefan Z

2010-01-01T23:59:59.000Z

120

ELECTRICAL POWER SYSTEM DESCRIPTION DOCUMENT  

SciTech Connect

The purpose of this revision of the System Description Document (SDD) is to establish requirements that drive the design of the electrical power system and their bases to allow the design effort to proceed to License Application. This SDD is a living document that will be revised at strategic points as the design matures over time. This SDD identifies the requirements and describes the system design as they exist at this time, with emphasis on those attributes of the design provided to meet the requirements. This SDD has been developed to be an engineering tool for design control. Accordingly, the primary audience are design engineers. This type of SDD leads and follows the design process. It leads the design process with regard to the flow down of upper tier requirements onto the system. Knowledge of these requirements is essential to performing the design process. This SDD follows the design with regard to the description of the system. The description provided in the SDD is a reflection of the results of the design process to date. Functional and operational requirements applicable to this system are obtained from ''Project Functional and Operational Requirements'' (F&OR) (Siddoway, 2003). Other requirements to support the design process have been taken from higher level requirements documents such as ''Project Design Criteria Document'' (PDC) (Doraswamy 2004), the fire hazards analyses, and the preclosure safety analysis. The above mentioned low-level documents address ''Project Requirements Document'' (PRD) (Canori and Leitner 2003) requirements. This SDD includes several appendices with supporting information. Appendix B lists key system charts, diagrams, drawings, and lists; and Appendix C is a list of system procedures.

M. Maniyar

2004-06-22T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Romanian power systems engineering towards EU integration  

Science Conference Proceedings (OSTI)

The evolution of electric power system analysis methods followed the present technical problems and business needs of electric utilities in Romania, before EU integration. Present technical requirements and the current stage of power system analysis ... Keywords: computer applications, computer simulation, fourier analysis, modelling, power systems, training

Stefania Popadiuc; Bogdan Popa; Frangiskos Topalis; Cristiana Geambasu

2007-05-01T23:59:59.000Z

122

Genetic algorithm based fuzzy logic power system stabilizers in multimachine power system  

Science Conference Proceedings (OSTI)

This paper presents an approach for the design of fuzzy logic power system stabilizers using genetic algorithms. In the proposed fuzzy expert system, speed deviation and its derivative have been selected as fuzzy inputs. In this approach the parameters ... Keywords: dynamic stability, fuzzy logic based power system stabilizer, genetic Algorithms, genetic based power system stabilizer, power system stabilizer

Manisha Dubey; Nikos E. Mastorakis

2009-07-01T23:59:59.000Z

123

Wind integration into hydro dominant Power System.  

E-Print Network (OSTI)

??The Icelandic Power System is a hydro dominant system where approximately 75 % of the electricity generation is hydro based. However due to transmission constraints… (more)

Thorleiksson, Johannes

2013-01-01T23:59:59.000Z

124

Dynamic Reactive Power Control of Isolated Power Systems  

E-Print Network (OSTI)

This dissertation presents dynamic reactive power control of isolated power systems. Isolated systems include MicroGrids in islanded mode, shipboard power systems operating offshore, or any other power system operating in islanded mode intentionally or due to a fault. Isolated power systems experience fast transients due to lack of an infinite bus capable of dictating the voltage and frequency reference. This dissertation only focuses on reactive control of islanded MicroGrids and AC/DC shipboard power systems. The problem is tackled using a Model Predictive Control (MPC) method, which uses a simplified model of the system to predict the voltage behavior of the system in future. The MPC method minimizes the voltage deviation of the predicted bus voltage; therefore, it is inherently robust and stable. In other words, this method can easily predict the behavior of the system and take necessary control actions to avoid instability. Further, this method is capable of reaching a smooth voltage profile and rejecting possible disturbances in the system. The studied MicroGrids in this dissertation integrate intermittent distributed energy resources such as wind and solar generators. These non-dispatchable sources add to the uncertainty of the system and make voltage and reactive control more challenging. The model predictive controller uses the capability of these sources and coordinates them dynamically to achieve the voltage goals of the controller. The MPC controller is implemented online in a closed control loop, which means it is self-correcting with the feedback it receives from the system.

Falahi, Milad

2012-12-01T23:59:59.000Z

125

Power Electronics for Distributed Energy Systems and Transmission and Distribution Applications: Assessing the Technical Needs for Utility Applications  

DOE Green Energy (OSTI)

Power electronics can provide utilities the ability to more effectively deliver power to their customers while providing increased reliability to the bulk power system. In general, power electronics is the process of using semiconductor switching devices to control and convert electrical power flow from one form to another to meet a specific need. These conversion techniques have revolutionized modern life by streamlining manufacturing processes, increasing product efficiencies, and increasing the quality of life by enhancing many modern conveniences such as computers, and they can help to improve the delivery of reliable power from utilities. This report summarizes the technical challenges associated with utilizing power electronics devices across the entire spectrum from applications to manufacturing and materials development, and it provides recommendations for research and development (R&D) needs for power electronics systems in which the U.S. Department of Energy (DOE) could make a substantial impact toward improving the reliability of the bulk power system.

Tolbert, L.M.

2005-12-21T23:59:59.000Z

126

EMERY BIOMASS GASIFICATION POWER SYSTEM  

DOE Green Energy (OSTI)

Emery Recycling Corporation (now Emery Energy Company, LLC) evaluated the technical and economical feasibility of the Emery Biomass Gasification Power System (EBGPS). The gasifier technology is owned and being developed by Emery. The Emery Gasifier for this project was an oxygen-blown, pressurized, non-slagging gasification process that novelly integrates both fixed-bed and entrained-flow gasification processes into a single vessel. This unique internal geometry of the gasifier vessel will allow for tar and oil destruction within the gasifier. Additionally, the use of novel syngas cleaning processes using sorbents is proposed with the potential to displace traditional amine-based and other syngas cleaning processes. The work scope within this project included: one-dimensional gasifier modeling, overall plant process modeling (ASPEN), feedstock assessment, additional analyses on the proposed syngas cleaning process, plant cost estimating, and, market analysis to determine overall feasibility and applicability of the technology for further development and commercial deployment opportunities. Additionally, the project included the development of a detailed technology development roadmap necessary to commercialize the Emery Gasification technology. Process modeling was used to evaluate both combined cycle and solid oxide fuel cell power configurations. Ten (10) cases were evaluated in an ASPEN model wherein nine (9) cases were IGCC configurations with fuel-to-electricity efficiencies ranging from 38-42% and one (1) case was an IGFC solid oxide case where 53.5% overall plant efficiency was projected. The cost of electricity was determined to be very competitive at scales from 35-71 MWe. Market analysis of feedstock availability showed numerous market opportunities for commercial deployment of the technology with modular capabilities for various plant sizes based on feedstock availability and power demand.

Benjamin Phillips; Scott Hassett; Harry Gatley

2002-11-27T23:59:59.000Z

127

Power-law rheology in the bulk and at the interface: quasi-properties and fractional constitutive equations  

E-Print Network (OSTI)

Consumer products, such as foods, contain numerous polymeric and particulate additives that play critical roles in maintaining their stability, quality and function. The resulting materials exhibit complex bulk and interfacial ...

Jaishankar, Aditya

128

New Horizons Mission Powered by Space Radioisotope Power Systems |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

New Horizons Mission Powered by Space Radioisotope Power Systems New Horizons Mission Powered by Space Radioisotope Power Systems New Horizons Mission Powered by Space Radioisotope Power Systems January 30, 2008 - 6:47pm Addthis Artist's concept of the New Horizons spacecraft during its planned encounter with Pluto and its moon, Charon. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma experiments are run by the Department of Energy's Radioisotope Thermoelectric Generator (RTG). | Photo courtesy of Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute (JHUAPL/SwRI) Artist's concept of the New Horizons spacecraft during its planned encounter with Pluto and its moon, Charon. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space

129

Electricity for road transport, flexible power systems and wind power  

Open Energy Info (EERE)

road transport, flexible power systems and wind power road transport, flexible power systems and wind power (Smart Grid Project) Jump to: navigation, search Project Name Electricity for road transport, flexible power systems and wind power Country Denmark Coordinates 56.26392°, 9.501785° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":56.26392,"lon":9.501785,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

130

New Horizons Mission Powered by Space Radioisotope Power Systems |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

New Horizons Mission Powered by Space Radioisotope Power Systems New Horizons Mission Powered by Space Radioisotope Power Systems New Horizons Mission Powered by Space Radioisotope Power Systems January 30, 2008 - 6:47pm Addthis Artist's concept of the New Horizons spacecraft during its planned encounter with Pluto and its moon, Charon. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma experiments are run by the Department of Energy's Radioisotope Thermoelectric Generator (RTG). | Photo courtesy of Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute (JHUAPL/SwRI) Artist's concept of the New Horizons spacecraft during its planned encounter with Pluto and its moon, Charon. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space

131

Electric Power System Asset Optimization  

NLE Websites -- All DOE Office Websites (Extended Search)

NETL-430/061110 NETL-430/061110 March 7, 2011 430.01.03 Electric Power System Asset Optimization Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or

132

Space Power Systems | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Reactor Technologies » Space Power Systems Reactor Technologies » Space Power Systems Space Power Systems Through a strong partnership between the Energy Department's office of Nuclear Energy and NASA, Radioisotope Power Systems have been providing the energy for deep space exploration. Through a strong partnership between the Energy Department's office of Nuclear Energy and NASA, Radioisotope Power Systems have been providing the energy for deep space exploration. The Department of Energy (DOE) and its predecessors have provided radioisotope power systems that have safely enabled deep space exploration and national security missions for five decades. Radioisotope power systems (RPSs) convert the heat from the decay of the radioactive isotope plutonium-238 (Pu-238) into electricity. RPSs are capable of producing heat and electricity under the harsh conditions

133

Monolithic Power Systems | Open Energy Information  

Open Energy Info (EERE)

Monolithic Power Systems Monolithic Power Systems Jump to: navigation, search Name Monolithic Power Systems Place San Jose, California Zip 95120 Product A California-based analog semiconductor company. References Monolithic Power Systems[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Monolithic Power Systems is a company located in San Jose, California . References ↑ "Monolithic Power Systems" Retrieved from "http://en.openei.org/w/index.php?title=Monolithic_Power_Systems&oldid=348915" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers

134

PowerGenix Systems | Open Energy Information  

Open Energy Info (EERE)

PowerGenix Systems PowerGenix Systems Jump to: navigation, search Name PowerGenix Systems Place San Diego, California Zip 92131-1109 Product Develops high-discharge nickel-zinc rechargeable batteries. References PowerGenix Systems[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. PowerGenix Systems is a company located in San Diego, California . References ↑ "PowerGenix Systems" Retrieved from "http://en.openei.org/w/index.php?title=PowerGenix_Systems&oldid=349892" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load)

135

Renewable and Efficient Electric Power Systems  

E-Print Network (OSTI)

.8.1 Ideal Transformers 37 1.8.2 Magnetization Losses 40 Problems 44 2 Fundamentals of Electric Power 51 2Renewable and Efficient Electric Power Systems Gilbert M. Masters Stanford University A JOHN WILEY & SONS, INC., PUBLICATION #12;#12;Renewable and Efficient Electric Power Systems #12;#12;Renewable

Kammen, Daniel M.

136

Modular Solar Electric Power (MSEP) Systems (Presentation)  

SciTech Connect

This presentation discusses the development and deployment of Modular Solar Electric Power (MSEP) systems, the feasibility of application of existing binary power cycles to solar trough technology, and identification of next action items.

Hassani, V.

2000-06-18T23:59:59.000Z

137

Prony analysis for power system transient harmonics  

Science Conference Proceedings (OSTI)

Proliferation of nonlinear loads in power systems has increased harmonic pollution and deteriorated power quality. Not required to have prior knowledge of existing harmonics, Prony analysis detects frequencies, magnitudes, phases, and especially damping ...

Li Qi; Lewei Qian; Stephen Woodruff; David Cartes

2007-01-01T23:59:59.000Z

138

Power Quality Issues in a Hybrid Power System: Preprint  

DOE Green Energy (OSTI)

We analyzed a power system network, which consisted of two types of power generation: wind turbine generation and diesel generation. The power quality and the interaction of diesel generation, the wind turbine, and the local load were the subjects of investigation. From an energy-production point of view, it is desirable to have as much wind energy production as possible in order to save fuel consumption of the diesel engines and to reduce the level of pollution. From the customer point of view, it is desirable to have good power quality at the receiving end. The purpose of this paper is to show the impact of wind power plant in the entire system. Also, we discuss how the startup of the wind turbine and the transient condition during load changes affects the voltage and frequency in the system.

Muljadi, E.; McKenna, H. E.

2001-09-01T23:59:59.000Z

139

Land Record System PIA, Bonneville Power Administration | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Land Record System PIA, Bonneville Power Administration Land Record System PIA, Bonneville Power Administration Land Record System PIA, Bonneville Power Administration Land Record...

140

Integrated Ocean Skin and Bulk Temperature Measurements Using the Calibrated Infrared In Situ Measurement System (CIRIMS) and Through-Hull Ports  

Science Conference Proceedings (OSTI)

The design and performance of a shipboard-integrated system for underway skin and bulk temperature is presented. The system consists of the Calibrated Infrared In situ Measurement System (CIRIMS) and through-hull temperature sensors. The CIRIMS ...

A. T. Jessup; R. Branch

2008-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Bulk single crystal ternary substrates for a thermophotovoltaic energy conversion system  

DOE Patents (OSTI)

A thermophotovoltaic energy conversion device and a method for making the device are disclosed. The device includes a substrate formed from a bulk single crystal material having a bandgap (E{sub g}) of 0.4 eV < E{sub g} < 0.7 eV and an emitter fabricated on the substrate formed from one of a p-type and an n-type material. Another thermophotovoltaic energy conversion device includes a host substrate formed from a bulk single crystal material and lattice-matched ternary or quaternary III-V semiconductor active layers.

Charache, G.W.; Baldasaro, P.F.; Nichols, G.J.

1996-12-31T23:59:59.000Z

142

Bulk single crystal ternary substrates for a thermophotovoltaic energy conversion system  

DOE Patents (OSTI)

A thermophotovoltaic energy conversion device and a method for making the device are disclosed. The device includes a substrate formed from a bulk single crystal material having a bandgap (E{sub g}) of 0.4 eV < E{sub g} < 0.7 eV and an emitter fabricated on the substrate formed from one of a p-type or an n-type material. Another thermophotovoltaic energy conversion device includes a host substrate formed from a bulk single crystal material and lattice-matched ternary or quaternary III-V semiconductor active layers. 12 figs.

Charache, G.W.; Baldasaro, P.F.; Nichols, G.J.

1998-06-23T23:59:59.000Z

143

Bulk single crystal ternary substrates for a thermophotovoltaic energy conversion system  

DOE Patents (OSTI)

A thermophotovoltaic energy conversion device and a method for making the device. The device includes a substrate formed from a bulk single crystal material having a bandgap (E.sub.g) of 0.4 eVbulk single crystal material and lattice-matched ternary or quaternary III-V semiconductor active layers.

Charache, Greg W. (Clifton Park, NY); Baldasaro, Paul F. (Clifton Park, NY); Nichols, Greg J. (Burnt Hills, NY)

1998-01-01T23:59:59.000Z

144

Northern Power Systems | Open Energy Information  

Open Energy Info (EERE)

Northern Power Systems Northern Power Systems Place Barre, VT Website http://www.northernpowersystem References Northern Power Systems[1] Information About Partnership with NREL Partnership with NREL Yes Partnership Type CRADA Partnering Center within NREL National Wind Technology Center Partnership Year 2000 Link to project description http://www.nrel.gov/news/press/2000/34three.html LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! Northern Power Systems is a company located in Barre, VT. References ↑ "Northern Power Systems" Retrieved from "http://en.openei.org/w/index.php?title=Northern_Power_Systems&oldid=379254" Categories: Clean Energy Organizations Companies Organizations What links here Related changes Special pages Printable version

145

Optimization Online - Stochastic Optimization for Power System ...  

E-Print Network (OSTI)

Feb 17, 2011... for Power System Configuration with Renewable Energy in Remote ... type of problem in comparison to a state-of-the-art professional solver.

146

Materials in Clean Power Systems VIII  

Science Conference Proceedings (OSTI)

Degradation modeling and lifetime prediction of materials used in clean and renewable power systems. Abstracts Due, 07/31/2012. Proceedings Plan, Planned: ...

147

Utility Grid-Connected Distributed Power Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Grid-Connected Distributed Power Systems National Solar Energy Conference ASES Solar 96 Asheville, NC April 1996 Donald E. OsbornDavid E. Collier Sacramento Municipal Utility...

148

NETL: Coal & Power Systems Reference Shelf  

NLE Websites -- All DOE Office Websites (Extended Search)

Reference Shelf Coal & Power Systems Reference Shelf Below are links to recent Strategic Center for Coal (SCC) related documents and reference materials. Each technology area...

149

Costs Drop for Photovoltaic Power Systems  

Science Conference Proceedings (OSTI)

Oct 23, 2009 ... The cost reduction over time was largest for smaller PV systems, such as those used to power individual households. Also, installed costs show ...

150

Advanced nonlinear control of complex power systems.  

E-Print Network (OSTI)

??Nowadays, advanced controller design is called upon to guarantee the secure and reliable operation of power systems. To meet this requirement, this work proposed three… (more)

Li, Hong Yin.

2008-01-01T23:59:59.000Z

151

Neutral Beam Power System for TPX  

SciTech Connect

The Tokamak Physics Experiment (TPX) will utilize to the maximum extent the existing Tokamak Fusion Test Reactor (TFTR) equipment and facilities. This is particularly true for the TFTR Neutral Beam (NB) system. Most of the NB hardware, plant facilities, auxiliary sub-systems, power systems, service infrastructure, and control systems can be used as is. The major changes in the NB hardware are driven by the new operating duty cycle. The TFTR Neutral Beam was designed for operation of the Sources for 2 seconds every 150 seconds. The TPX requires operation for 1000 seconds every 4500 seconds. During the Conceptual Design Phase of TPX every component of the TFTR NB Electrical Power System was analyzed to verify whether the equipment can meet the new operational requirements with our without modifications. The Power System converts 13.8 kV prime power to controlled pulsed power required at the NB sources. The major equipment involved are circuit breakers, auto and rectifier transformers surge suppression components, power tetrodes, HV Decks, and HVDC power transmission to sources. Thermal models were developed for the power transformers to simulate the new operational requirements. Heat runs were conducted for the power tetrodes to verify capability. Other components were analyzed to verify their thermal limitations. This paper describes the details of the evaluation and redesign of the electrical power system components to meet the TPX operational requirements.

Ramakrishnan, S.; Bowen, O.N.; O`Conner, T.; Edwards, J.; Fromm, N.; Hatcher, R.; Newman, R.; Rossi, G.; Stevenson, T.; von Halle, A.

1993-11-01T23:59:59.000Z

152

Solar thermal power systems. Program summary  

DOE Green Energy (OSTI)

Each of DOE's solar Thermal Power Systems projects funded and/or in existence during FY 1978 is described and the status as of September 30, 1978 is reflected. These projects are divided as follows: small thermal power applications, large thermal power applications, and advanced thermal technology. Also included are: 1978 project summary tables, bibliography, and an alphabetical index of contractors. (MHR)

Not Available

1978-12-01T23:59:59.000Z

153

Acceptance test report: Backup power system  

SciTech Connect

Acceptance Test Report for construction functional testing of Project W-030 Backup Power System. Project W-030 provides a ventilation upgrade for the four Aging Waste Facility tanks. Backup power includes a single 125 KW diesel generator, three 10-kva uninterruptible power supply units, and all necessary control.

Cole, D.B. [Westinghouse Hanford Co., Richland, WA (United States)

1996-01-26T23:59:59.000Z

154

Power reduction techniques for microprocessor systems  

Science Conference Proceedings (OSTI)

Power consumption is a major factor that limits the performance of computers. We survey the “state of the art” in techniques that reduce the total power consumed by a microprocessor system over time. These techniques are applied at various ... Keywords: Energy dissipation, power reduction

Vasanth Venkatachalam; Michael Franz

2005-09-01T23:59:59.000Z

155

The effect of high penetration of wind power on primary frequency control of power systems.  

E-Print Network (OSTI)

??In this work, a power system with wind power units and hydro power units are considered. The hydro power unit and variable speed wind turbine… (more)

Motamed, Bardia

2013-01-01T23:59:59.000Z

156

DEVELOPMENT OF A TAMPER RESISTANT/INDICATING AEROSOL COLLECTION SYSTEM FOR ENVIRONMENTAL SAMPLING AT BULK HANDLING FACILITIES  

SciTech Connect

Environmental sampling has become a key component of International Atomic Energy Agency (IAEA) safeguards approaches since its approval for use in 1996. Environmental sampling supports the IAEA's mission of drawing conclusions concerning the absence of undeclared nuclear material or nuclear activities in a Nation State. Swipe sampling is the most commonly used method for the collection of environmental samples from bulk handling facilities. However, augmenting swipe samples with an air monitoring system, which could continuously draw samples from the environment of bulk handling facilities, could improve the possibility of the detection of undeclared activities. Continuous sampling offers the opportunity to collect airborne materials before they settle onto surfaces which can be decontaminated, taken into existing duct work, filtered by plant ventilation, or escape via alternate pathways (i.e. drains, doors). Researchers at the Savannah River National Laboratory and Oak Ridge National Laboratory have been working to further develop an aerosol collection technology that could be installed at IAEA safeguarded bulk handling facilities. The addition of this technology may reduce the number of IAEA inspector visits required to effectively collect samples. The principal sample collection device is a patented Aerosol Contaminant Extractor (ACE) which utilizes electrostatic precipitation principles to deposit particulates onto selected substrates. Recent work has focused on comparing traditional swipe sampling to samples collected via an ACE system, and incorporating tamper resistant and tamper indicating (TRI) technologies into the ACE system. Development of a TRI-ACE system would allow collection of samples at uranium/plutonium bulk handling facilities in a manner that ensures sample integrity and could be an important addition to the international nuclear safeguards inspector's toolkit. This work was supported by the Next Generation Safeguards Initiative (NGSI), Office of Nonproliferation and International Security (NIS), National Nuclear Security Administration (NNSA).

Sexton, L.

2012-06-06T23:59:59.000Z

157

Power Systems Operation Planning Optimization.  

E-Print Network (OSTI)

??Optimal hydrothermal power dispatch on a multi-area network is a large-scale non-linear problem. Its objective is to find the optimal generation schedule of hydro and… (more)

FRAGOMENI, UMBERTO

2013-01-01T23:59:59.000Z

158

NETL: Coal & Power Systems - Contacts  

NLE Websites -- All DOE Office Websites (Extended Search)

412-386-6140 Office of Coal and Power Research and Development Office Director: Jared Ciferno 412-386-5862 Deputy Director: Robert Romanosky 304-285-4721 Technology Manager, Fuel...

159

NREL: Water Power Research - Economic and Power System Modeling and  

NLE Websites -- All DOE Office Websites (Extended Search)

Economic and Power System Modeling and Analysis Economic and Power System Modeling and Analysis NREL's Economic Analysis and power system modeling integrates data from device deployment and programmatic research into deployment and scenario models to quantify the economic and societal benefits of developing cost-competitive marine and hydrokinetic systems. It also identifies policy mechanisms, market designs, and supply chain needs to support various deployment scenarios, provide information and training to potential members of the marine and hydrokinetic (MHK) industry and effectively collaborate with all associated stakeholders. JEDI Modeling NREL worked with industry members to develop and provide public access to an easy-to-use input-output model that estimates the jobs and economic development impacts (JEDI) of MHK projects in the United States. The JEDI

160

Railway Power SCADA System Commissioning "Case Example"  

Science Conference Proceedings (OSTI)

The Mass Transit Railway Corporation Ltd., installed andcommissioned their first computer based Power RemoteControl System in late 1980's. The system wassuccessfully replaced in February 2000. This paperdescribes the methodology adopted to prepare andfacilitate ...

I. Hampton; K. Lam

2001-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Bifurcation Analysis of Various Power System Models  

E-Print Network (OSTI)

Bifurcation Analysis of Various Power System Models William D. Rosehart Claudio A. Ca This paper presents the bifurcation analysis of a detailed power system model composed of an aggregated induction motor and impedance load supplied by an under-load tap-changer transformer and an equivalent

Cañizares, Claudio A.

162

2007 NET SYSTEM POWER REPORT STAFFREPORT  

E-Print Network (OSTI)

-2007.......................................................................5 Figure 3: Natural Gas and Coal Shares of Net System Power Mix Become Larger 1999-2007.....7 List technologies used to generate electricity. Fuel types include coal, natural gas, nuclear, and other fuels of "unclaimed" coal and natural gas generation. Figure 2 illustrates the decrease in net system power between

163

Residential Power Systems for Distributed Generation Markets  

Science Conference Proceedings (OSTI)

This report is an update to "Technology Assessment of Residential Power Systems for Distributed Generation Markets" (EPRIsolutions report 1000772). That previous report dealt with fuel cells, stirling engine generators, and reciprocating engine generators; this current report focuses on polymer electrolyte membrane fuel cells (PEMFCs) and solid oxide fuel cell (SOFC) power systems fueled with natural gas or propane and sized for residential loads.

2002-03-29T23:59:59.000Z

164

Automatic control in electric power systems  

Science Conference Proceedings (OSTI)

The recent progress in the application of automatic controls to electric power systems is outlined. After a brief review of present trends in power system planning and operation, the role of computers and of modern control methods and techniques in optimal ...

G. Quazza

1970-01-01T23:59:59.000Z

165

Modal Analysis of Power Systems with Doubly Fed Induction Generators.  

E-Print Network (OSTI)

?? To ensure the reliable operation of the power system, stability analysis considering the interaction between wind power and power system must be understood. In this… (more)

Li, Jialin

2010-01-01T23:59:59.000Z

166

Green Island Power Authority Transmission Voltage Support System...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Green Island Power Authority Transmission Voltage Support System Project Green Island Power Authority Transmission Voltage Support System Project Power point presentation...

167

PEMFC Power System on EthanolPEMFC Power System on Ethanol Caterpillar Inc.Caterpillar Inc.  

E-Print Network (OSTI)

represents a carbon cycle, where plants absorb carbon dioxide during growth, "recycling" the carbon released #12;Program ObjectivesProgram Objectives Integrated PEM Fuel Cell System Ethanol based Power Plant 10PEMFC Power System on EthanolPEMFC Power System on Ethanol Caterpillar Inc.Caterpillar Inc. Thomas

168

Columbia Power System | Open Energy Information  

Open Energy Info (EERE)

System System Jump to: navigation, search Name Columbia Power System Place Tennessee Utility Id 3855 Utility Location Yes Ownership M NERC Location SERC NERC SERC Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png GENERAL POWER RATE From 51 kW to 1,000 kW Commercial GENERAL POWER RATE Up to 50 kW Commercial GENERAL POWER RATE(Demand greater than 1,000 kW not exceeding 5000kW) Commercial General Power Rate(Demand 5001-15000kW) Commercial MANUFACTURING SERVICE POWER RATE DEMAND 5,001-15,000 kW Commercial OUTDOOR LIGHTING STREET, PARKS, & ATHLETIC FIELDS Lighting

169

Geomagnetic Storms and Long-Term Impacts on Power Systems  

Science Conference Proceedings (OSTI)

Pacific Northwest National Laboratory was commissioned to study the potential impact of a severe GIC event on the western U.S.-Canada power grid (referred to as the Western Interconnection). The study identified long transmission lines (length exceeding 150 miles) that did not include series capacitors. The basic assumption for the study is that a GIC is more likely to couple to long transmission lines, and that series capacitors would block the flow of the induced DC GIC. Power system simulations were conducted to evaluate impacts to the bulk power system if transformers on either end of these lines failed. The study results indicated that the Western Interconnection was not substantially at risk to GIC because of the relatively small number of transmission lines that met this criterion. This report also provides a summary of the Hydro-Québec blackout on March 13, 1989, which was caused by a GIC. This case study delves into the failure mechanisms of that event, lessons learned, and preventive measures that have been implemented to minimize the likelihood of its reoccurrence. Finally, the report recommends that the electric power industry consider the adoption of new protective relaying approaches that will prevent severe GIC events from catastrophically damaging transformers. The resulting changes may increase the likelihood of smaller disruptions but should prevent an unlikely yet catastrophic national-level event.

Kirkham, Harold; Makarov, Yuri V.; Dagle, Jeffery E.; DeSteese, John G.; Elizondo, Marcelo A.; Diao, Ruisheng

2011-12-31T23:59:59.000Z

170

Autonomous wind power systems are economically competitive  

Science Conference Proceedings (OSTI)

Autonomous wind power systems, i.e. electric conversion systems utilizing the wind as the only energy source, are especially useful for isolated applications (telecommunications, measuring stations, pumps, ...) and for remote individual domestic applications (direct feed of electrical energy into household mains, space and water heating, ...) or in the farm (greenhouse heating, milk cooling, ...). The power rating of autonomous systems can range from a few 100 W to about 50 kW. Usually a storage is incorporated in the form of electric batteries or standard night storage heaters, improving considerably the ability of the system to sustain the average power and ameliorate the reliability.

Van Leuven, J.

1983-12-01T23:59:59.000Z

171

Catalog of DC Appliances and Power Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Catalog of DC Appliances and Power Systems Catalog of DC Appliances and Power Systems Title Catalog of DC Appliances and Power Systems Publication Type Report LBNL Report Number LBNL-5364E Year of Publication 2011 Authors Garbesi, Karina, Vagelis Vossos, and Hongxia Shen Document Number LBNL-5364E Date Published October Publisher Lawrence Berkeley National Laboratory Abstract This document catalogs the characteristics of current and potential future direct current (DC) products and power systems. It is part of a larger U.S. Department of Energy-funded project, "Direct-DC Power Systems for Energy Efficiency and Renewable Energy Integration with a Residential and Small Commercial Focus". That project is investigating the energy-savings potential, benefits, and barriers of using DC generated by on-site renewable energy systems directly in its DC form, rather than converting it first to alternating current (AC) for distribution to loads. Two related reports resulted from this work: this Catalog and a companion report that addresses direct-DC energy savings in U.S. residential buildings.Interest in 'direct-DC' is motivated by a combination of factors: the very rapid increase in residential and commercial photovoltaic (PV) power systems in the United States; the rapid expansion in the current and expected future use of energy efficient products that utilize DC power internally; the demonstrated energy savings of direct-DC in commercial data centers; and the current emergence of direct-DC power standards and products designed for grid-connected residential and commercial products. Based on an in-depth study of DC appliances and power systems, we assessed off-grid markets for DC appliances, the DC compatibility of mainstream electricity end-uses, and the emerging mainstream market for direct-DC appliances and power systems.

172

Power electronics in electric utilities: HVDC power transmission systems  

SciTech Connect

High Voltage Direct Current (HVDC) power transmission systems constitute an important application of power electronics technology. This paper reviews salient aspects of this growing industry. The paper summarizes the history of HVDC transmission and discusses the economic and technical reasons responsible for development of HVDC systems. The paper also describes terminal design and basic configurations of HVDC systems, as well as major equipments of HVDC transmission system. In this regard, the state-of-the-art technology in the equipments constructions are discussed. Finally, the paper reviews future developments in the HVDC transmission systems, including promising technologies, such as multiterminal configurations, Gate Turn-Off (GTO) devices, forced commutation converters, and new advances in control electronics.

Nozari, F.; Patel, H.S.

1988-04-01T23:59:59.000Z

173

Duke Power Compact PHOCUS Boresonic System Evaluation  

Science Conference Proceedings (OSTI)

Reliable and repeatable boresonic inspection of turbine rotors and generators is critical for accurately predicting remaining life. EPRI's boresonic system evaluation program provides utilities with insight into commercial boresonic system performance capabilities. This report, one in a series of boresonic system evaluations, features an assessment of Duke Power Company's compact PHOCUS boresonic inspection system.

1994-05-07T23:59:59.000Z

174

NETL: Gasification Systems - Power Systems Development Facility (PSDF)  

NLE Websites -- All DOE Office Websites (Extended Search)

Power Systems Development Facility (PSDF) Power Systems Development Facility (PSDF) Project No.: DE-FC21-90MC25140 Power Systems Development Facility (PSDF) Project ID: DE-FC21-90MC25140 NETL Contact: Morgan Mosser (304) 285-4723 Organization: Southern Company Services, Inc. - Birmingham, AL Project Timeline: Start: 09/14/1990 End: 01/31/2009 Power Systems Development Facility The objectives of the work at the Power Systems Development Facility (PSDF) are two-fold; development of the Transport Gasifier for a wide range of US coals from high sodium lignite to Midwestern bituminous and provide a test platform to test various critical components that are likely to appear in future advanced coal-based power facilities producing power and fuels such as hydrogen with zero emissions. With regard to the development of the

175

Versa Power Systems | Open Energy Information  

Open Energy Info (EERE)

Power Systems Power Systems Jump to: navigation, search Logo: Versa Power Systems Name Versa Power Systems Address 8392 Continental Divide Road, Suite 101 Place Littleton, Colorado Zip 80127 Sector Hydrogen Product Developing solid oxide fuel cells Website http://www.versa-power.com/ Coordinates 39.5676518°, -105.1208444° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.5676518,"lon":-105.1208444,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

176

Jadoo Power Systems Inc | Open Energy Information  

Open Energy Info (EERE)

Jadoo Power Systems Inc Jadoo Power Systems Inc Jump to: navigation, search Name Jadoo Power Systems Inc Place Folsom, California Zip 95630 Product US-based fuel cell developer, Jadoo Power Systems Inc, produces high energy density power products for the law enforcement, military and electronic news gathering applications. Coordinates 39.474081°, -80.529699° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.474081,"lon":-80.529699,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

177

A new damage testing system for detailed evaluation of damage behavior of bulk KDP and DKDP  

SciTech Connect

We describe a new damage testing approach and instrumentation that provides quantitative measurements of bulk damage performance versus fluence for several frequencies. A major advantage of this method is that it can simultaneously provide direct information on pinpoint density and size, and beam obscuration. This allows for more accurate evaluation of material performance under operational conditions. Protocols for laser conditioning to improve damage performance can also be easily and rapidly evaluated.This damage testing approach has enabled us to perform complex experiments toward probing the fundamental mechanisms of damage initiation and conditioning.

DeMange, P; Negres, R A; Carr, C W; Radousky, H B; Demos, S G

2004-11-17T23:59:59.000Z

178

INTEGRATED CONTROL OF NEXT GENERATION POWER SYSTEM  

Science Conference Proceedings (OSTI)

Control methodologies provide the necessary data acquisition, analysis and corrective actions needed to maintain the state of an electric power system within acceptable operating limits. These methods are primarily software-based algorithms that are nonfunctional unless properly integrated with system data and the appropriate control devices. Components of the control of power systems today include protective relays, supervisory control and data acquisition (SCADA), distribution automation (DA), feeder automation, software agents, sensors, control devices and communications. Necessary corrective actions are still accomplished using large electromechanical devices such as vacuum, oil and gas-insulated breakers, capacitor banks, regulators, transformer tap changers, reclosers, generators, and more recently FACTS (flexible AC transmission system) devices. The recent evolution of multi-agent system (MAS) technologies has been reviewed and effort made to integrate MAS into next generation power systems. A MAS can be defined as ��a loosely-coupled network of problem solvers that work together to solve problems that are beyond their individual capabilities��. These problem solvers, often called agents, are autonomous and may be heterogeneous in nature. This project has shown that a MAS has significant advantages over a single, monolithic, centralized problem solver for next generation power systems. Various communication media are being used in the electric power system today, including copper, optical fiber and power line carrier (PLC) as well as wireless technologies. These technologies have enabled the deployment of substation automation (SA) at many facilities. Recently, carrier and wireless technologies have been developed and demonstrated on a pilot basis. Hence, efforts have been made by this project to penetrate these communication technologies as an infrastructure for next generation power systems. This project has thus pursued efforts to use specific MAS methods as well as pertinent communications protocols to imbed and assess such technologies in a real electric power distribution system, specifically the Circuit of the Future (CoF) developed by Southern California Edison (SCE). By modeling the behavior and communication for the components of a MAS, the operation and control of the power distribution circuit have been enhanced. The use of MAS to model and integrate a power distribution circuit offers a significantly different approach to the design of next generation power systems. For example, ways to control a power distribution circuit that includes a micro-grid while considering the impacts of thermal constraints, and integrating voltage control and renewable energy sources on the main power system have been pursued. Both computer simulations and laboratory testbeds have been used to demonstrate such technologies in electric power distribution systems. An economic assessment of MAS in electric power systems was also performed during this project. A report on the economic feasibility of MAS for electric power systems was prepared, and particularly discusses the feasibility of incorporating MAS in transmission and distribution (T&D) systems. Also, the commercial viability of deploying MAS in T&D systems has been assessed by developing an initial case study using utility input to estimate the benefits of deploying MAS. In summary, the MAS approach, which had previously been investigated with good success by APERC for naval shipboard applications, has now been applied with promising results for enhancing an electric power distribution circuit, such as the Circuit of the Future developed by Southern California Edison. The results for next generation power systems include better ability to reconfigure circuits, improve protection and enhance reliability.

None

2010-02-28T23:59:59.000Z

179

Application of self-organizing systems in power systems control  

Science Conference Proceedings (OSTI)

The European electrical transmission network is operated increasingly close to its operational limits due to market integration and increased feed-in by renewable energies. For this reason, innovative solutions for a reliable, secure and efficient network ... Keywords: FACTS, multiagent systems, power flow control, power system control, self-organizing systems, smart grids

Sven C. Müller; Ulf Häger; Christian Rehtanz; Horst F. Wedde

2012-06-01T23:59:59.000Z

180

NREL: Water Power Research - Economic and Power System Modeling and  

NLE Websites -- All DOE Office Websites (Extended Search)

Economic and Power System Modeling and Analysis Economic and Power System Modeling and Analysis NREL has a long history of successful research to understand and improve the cost of renewable energy technologies, their possible deployment scenarios, and the economic impacts of this deployment. As a research laboratory, NREL is a neutral third party and can provide an unbiased perspective of methodologies and approaches used to estimate direct and indirect economic impacts of offshore renewable energy projects. Deployment and Economic Impact NREL's economic analysis team is working to provide stakeholders with the tools necessary to understand potential deployment scenarios of water power technologies and the economic impacts of this deployment. The team is working to improve the representation of marine and

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Saft Power Systems | Open Energy Information  

Open Energy Info (EERE)

Saft Power Systems Saft Power Systems Jump to: navigation, search Name Saft Power Systems Place Nanterre, France Zip 92004 Sector Solar Product French manufacturer of power supplies and systems, servicing the telecom and coal industries; in particular, manufacturers inverters and balance of systems for solar industry. Coordinates 48.88811°, 2.194915° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":48.88811,"lon":2.194915,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

182

DYNAMIC MODELLING OF AUTONOMOUS POWER SYSTEMS INCLUDING RENEWABLE POWER SOURCES.  

E-Print Network (OSTI)

(thermal, gas, diesel) and renewable (hydro, wind) power units. The objective is to assess the impact systems where the cost of conventional production is high. In recent years, the integration of wind energy is seen as an attractive alternative for fuel displacement. However, the intermittent nature of wind

Paris-Sud XI, Université de

183

Wind for Schools Project Power System Brief  

DOE Green Energy (OSTI)

This fact sheet provides an overview of the system components of a Wind Powering America Wind for Schools project. Wind Powering America's (WPA's) Wind for Schools project uses a basic system configuration for each school project. The system incorporates a single SkyStream(TM) wind turbine, a 70-ft guyed tower, disconnect boxes at the base of the turbine and at the school, and an interconnection to the school's electrical system. A detailed description of each system component is provided in this document.

Not Available

2007-08-01T23:59:59.000Z

184

Power Systems Analysis ELEN4511 Spring 2013  

E-Print Network (OSTI)

infrastructure overlay: #12;Image from `Industrial Power Distribution:Introduction http://www.industrial-electricity of the communications systems overlay is to enable communication between grid nodes for Supervision, Control and Data for the Power Grid by Bukhosi Msimanga, EE `13 Abstract Before the advent of communication technology

Lavaei, Javad

185

Advanced Power Systems and Controls Laboratory  

E-Print Network (OSTI)

. Conclusions As utility scale PV and rooftop solar PV become commonplace on our electric grid, battery energy Solar Power Generation Introduction The rapid growth of wind and solar power is a key driver of the development of grid-scale Battery Energy Storage Systems (BESS). A well implemented BESS co-located with solar

186

Southern Company Services Power Systems Development Facility  

E-Print Network (OSTI)

The Power Systems Development Facility (PSDF) located in Wilsonville, Alabama, was established in 1995 to lead the United States ' effort to develop cost-competitive, environmentally acceptable, coal-based power plant technologies. The PSDF includes an engineering scale demonstration of key components of an Integrated Gasification

Roxann Leonard; Robert C. Lambrecht; Pannalal Vimalchand; Ruth Ann Yongue; Senior Engineer

2007-01-01T23:59:59.000Z

187

Techno-economic Appraisal of Concentrating Solar Power Systems (CSP).  

E-Print Network (OSTI)

?? The diffusion of Concentrating Solar Power Systems (CSP) systems is currently taking place at a much slower pace than photovoltaic (PV) power systems. This… (more)

Gasti, Maria

2013-01-01T23:59:59.000Z

188

Cost Minimization in Power System Measurement Placement  

E-Print Network (OSTI)

, EMS: energy management system, PE: protection engineer, SC: substation control, IS: integrated system of substation automation systems, as reported in the March/April 2003 issue of IEEE Power & Energy Magazine fully automated while 1540-7977/04/$20.00©2004 IEEE figure 1. Layout of the typical substation equipment

Kezunovic, Mladen

189

Advanced Graphics for Power System Operation  

Science Conference Proceedings (OSTI)

The secure operation of an electric utility system with its many interconnections presents a complex problem, with large quantities of data to be processed at the system control center. EPRI investigators have developed a new graphical user interface that will enable power system operators to perform tasks more accurately and quickly.

1994-06-23T23:59:59.000Z

190

Promethean Power Systems | Open Energy Information  

Open Energy Info (EERE)

Promethean Power Systems Promethean Power Systems Jump to: navigation, search Name Promethean Power Systems Place Cambridge, Massachusetts Zip 2138 Product US-based developer of a solar-powered refrigeration system, specializing in off-grid and partially electrified applications. Coordinates 43.003745°, -89.017499° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.003745,"lon":-89.017499,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

191

Power systems | Princeton Plasma Physics Lab  

NLE Websites -- All DOE Office Websites (Extended Search)

Power systems Power systems Subscribe to RSS - Power systems The systems, such as fusion power plants, that would generate electricity from fusion. Celebrating the 20th anniversary of the tritium shot heard around the world PPPL's historic experiment made global headlines and marked a milestone in the development of fusion energy Read more about Celebrating the 20th anniversary of the tritium shot heard around the world Premiere issue of "Quest" magazine details PPPL's strides toward fusion energy and advances in plasma science Quest Magazine Summer 2013 Welcome to the premiere issue of Quest, the annual magazine of the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL). Read more about Premiere issue of "Quest" magazine details PPPL's

192

Low-Maintenance Wind Power System  

E-Print Network (OSTI)

with widespread adoption of wind energy. The project hasProject: Low-Maintenance Wind Power System Summary of theImproved Vertical Axis Wind Turbine and Aerodynamic Control

Rasson, Joseph E

2010-01-01T23:59:59.000Z

193

Adaptive power management in energy harvesting systems  

Science Conference Proceedings (OSTI)

Recently, there has been a substantial interest in the design of systems that receive their energy from regenerative sources such as solar cells. In contrast to approaches that attempt to minimize the power consumption we are concerned with adapting ...

Clemens Moser; Lothar Thiele; Davide Brunelli; Luca Benini

2007-04-01T23:59:59.000Z

194

Keeping the lights on [power system reliability  

Science Conference Proceedings (OSTI)

Of all the energy conversion processes in existence, the US electric power system is the largest and most complex. Unlike industries such as communications and transportation, where a demand in excess of supply produces a “busy signal” ...

J. D. Mountford; R. R. Austria

1999-06-01T23:59:59.000Z

195

Husk Power Systems | Open Energy Information  

Open Energy Info (EERE)

Bihar, India Zip 800023 Sector Biomass Product India-based developer of mini biomass plants. References Husk Power Systems1 LinkedIn Connections CrunchBase Profile No...

196

Crystallization and Solidification Properties of LipidsChapter 16 Relating Bulk-Fat Properties to Emulsified Systems: Characterizationof Emulsion Destabilization by Crystallizing Fats  

Science Conference Proceedings (OSTI)

Crystallization and Solidification Properties of Lipids Chapter 16 Relating Bulk-Fat Properties to Emulsified Systems: Characterizationof Emulsion Destabilization by Crystallizing Fats Health Nutrition Biochemistry eChapters Health - Nut

197

ELECTRIC POWER AND VENTILATION SYSTEM OF SILOE  

SciTech Connect

The 15-kv electric power of Siloe is supplied from a central substation, which serves all the laboratories in the Center. The substation transforms primary 3-phase power from 15 kv to 380 to 220 v. Control installations are supplied from sets of rectifiers and batteries with 127 and 48 v direct current. If the normal electric power supply fails, a 12000 kva diesel driven generator is automatically started and in a very short time supplies power. The ventilation system supplies the whole building with conditioned air, holds the shell in negative pressure, and exhausts radioactive effluents. (auth)

Mitault, G.; Faudou, J.-C.

1963-12-01T23:59:59.000Z

198

Variable pressure power cycle and control system  

DOE Patents (OSTI)

A variable pressure power cycle and control system that is adjustable to a variable heat source is disclosed. The power cycle adjusts itself to the heat source so that a minimal temperature difference is maintained between the heat source fluid and the power cycle working fluid, thereby substantially matching the thermodynamic envelope of the power cycle to the thermodynamic envelope of the heat source. Adjustments are made by sensing the inlet temperature of the heat source fluid and then setting a superheated vapor temperature and pressure to achieve a minimum temperature difference between the heat source fluid and the working fluid.

Goldsberry, Fred L. (Spring, TX)

1984-11-27T23:59:59.000Z

199

Solar thermal power systems. Summary report  

DOE Green Energy (OSTI)

The work accomplished by the Aerospace Corporation from April 1973 through November 1979 in the mission analysis of solar thermal power systems is summarized. Sponsorship of this effort was initiated by the National Science Foundation, continued by the Energy Research and Development Administration, and most recently directed by the United States Department of Energy, Division of Solar Thermal Systems. Major findings and conclusions are sumarized for large power systems, small power systems, solar total energy systems, and solar irrigation systems, as well as special studies in the areas of energy storage, industrial process heat, and solar fuels and chemicals. The various data bases and computer programs utilized in these studies are described, and tables are provided listing financial and solar cost assumptions for each study. An extensive bibliography is included to facilitate review of specific study results and methodology.

Not Available

1980-06-01T23:59:59.000Z

200

Preventing, Controlling and Mitigating Power System Separation  

Science Conference Proceedings (OSTI)

Large power system blackouts, although infrequent, may affect up to tens of millions of people and result in huge costs. A blackout is the result of a sequence of disturbances including initial events, consequent protective actions or additional failures, related vulnerability conditions, and accelerated cascading outages leading to the final blackout. Those disturbances may gradually weaken a power system's connections and result in growing angular oscillations between inter-connected control areas. If ...

2010-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Power-Aware Operating Systems for Interactive Systems  

E-Print Network (OSTI)

Many portable systems deploy operating systems (OS) to support versatile functionality and to manage resources, including power. This paper presents a new approach for using OS to reduce the power consumption of IO devices in interactive systems. Low-power OS observes the relationship between hardware devices and processes. The OS kernel estimates the utilization of a device from each process. If a device is not used by any running process, the OS puts it into a low-power state. This paper also explains how scheduling can facilitate power management. When processes are properly scheduled, power reduction can be achieved without degrading performance. We implemented a prototype on Linux to control two devices; experimental results showed nearly 70% power saving on a network card and a hard disk drive.

Yung-Hsiang Lu; Luca Benini; Giovanni De Micheli

2002-01-01T23:59:59.000Z

202

Stabilizing control of parallel AC-DC power transmission systems by approximate switching curve  

SciTech Connect

A method to improve the transient stability of bulk power transmission system is presented. The method stabilizes the control of parallel ac-dc transmission systems using an approximate switching curve. The optimal switching curve is approximated by a power series and the resulting switching curve is determined independent of type and duration of faults that occur to the system. In addition, coefficients of the switching curve can be calculated on a off-line basis which allows use of simple on-line algebraic calculations in emergency conditions.

Ichiyanagi, K.; Kobayashi, H.; Kakehu, H.

1980-01-01T23:59:59.000Z

203

Power System Transient Analysis Using Wavelet Transform  

E-Print Network (OSTI)

: This paper presents time-frequency multiresolution wavelet analysis on power system transients. Since it is difficult to analyze transients on-site due to a vast amount of data recorded from a digital transient recorder, it is imperative to develop an intelligent recorder which has the ability to detect and classify different types of power system transients. In order to develop a good approach for transient data capture and analysis, one of the important steps is to model transients, so that it is more efficient for computers to extract the features from power transients and recognize them automatically. Most of transient signals are aperiodic and short-term duration signals superimposed on the power frequency. The Fourier-based transforms have been proved valuable for periodic, time-invariant, or stationary signals, but they have problems with analyzing power transients due to the lack of multiple resolution in time-frequency domain. Wavelet analysis overcomes the limitations of t...

J. Chen

1999-01-01T23:59:59.000Z

204

NETL: SECA - A Primer on SOFC Technology - SOFC Power Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

SOFC Power Systems SOFC power generation applications can range from small (e.g., 3 to 10 kWe) power systems for the home or small business, or as auxiliary power units (APU's) for...

205

Combustion powered thermophotovoltaic emitter system  

Science Conference Proceedings (OSTI)

The US Naval Academy (USNA) has recently completed an engineering design project for a high temperature thermophotovoltaic (TPV) photon emitter. The final apparatus was to be portable, completely self contained, and was to incorporate cycle efficiency optimization such as exhaust stream recuperation. Through computer modeling and prototype experimentation, a methane fueled emitter system was designed from structural ceramic materials to fulfill the high temperature requirements necessary for high system efficiency. This paper outlines the engineering design process, discusses obstacles and solutions encountered, and presents the final design.

McHenry, R.S. [Naval Academy, Annapolis, MD (United States). Naval Architecture, Ocean and Marine Engineering

1995-07-01T23:59:59.000Z

206

Automated Surface Observing System: Standby Power Options  

NLE Websites -- All DOE Office Websites (Extended Search)

Automated Automated Surface Observing System Standby Options Power Automated Surface Observing System (ASOS) General System Description * Self contained group of sensors and data gathering equipment that produces an automated weather observation * Weather observations support aviation, climate data, non government weather operations, public consumption, etc. * Initial deployment began in 1991 and continued through 1997 * Located at 884 sites nationwide, normally at airports * System has two distinct subsystems: Field installed equipment (DCP & Sensor Group) and an indoor processor (ACU) with peripherals * Separate facility power for DCP & Sensors and ACU 1 * measure and collect data * Located on the airport * back up group for 10 minutes * Currently pl

207

DESIGN OF THE DEMOSNTRATION BULK VITRIFICATION SYSTEM FOR THE SUPPLEMENTAL TREATMENT OF LOW ACTIVITY TANK WASTE AT HANFORD  

SciTech Connect

In June 2004, the Demonstration Bulk Vitrification System (DBVS) was initiated with the intent to design, construct, and operate a full-scale bulk vitrification pilot-plant to treat low-activity tank waste from Hanford Tank 241-S-109. The DBVS facility uses In-Container Vitrification{trademark} (ICV{trademark}) at the core of the treatment process. The basic process steps combine liquid low-activity waste (LAW) and glassformers; dry the mixture; and then vitrify the mixture in a batch feed-while-melt process in a refractory lined steel container. Off-gases are processed through a state-of-the-art air pollution control system including sintered-metal filtration, thermal oxidation, acid gas scrubbing, and high-efficiency particulate air (HEPA) and high-efficiency gas adsorber (HEGA) filtration. Testing has focused on development and validation of the waste dryer, ICV, and sintered-metal filters (SMFs) equipment, operations enhancements, and glass formulation. With a parallel testing and design process, testing has allowed improvements to the DBVS equipment configuration and operating methodology, since its original inception. Design improvements include optimization of refractory panels in the ICV, simplifying glassformer addition equipment, increasing the number of waste feed chutes to the ICV, and adding capability for remote clean-out of piping, In addition, the U.S. Department of Energy (DOE) has provided an independent review of the entire DBVS process. While the review did not find any fatal flaws, some technical issues were identified that required a re-evaluation of the DBVS design and subsequent changes to the design. A 100 percent design package for the pilot plant will be completed and submitted to DOE for review in early 2008 that incorporates process improvements substantiated through testing and reviews. This paper provides a description of the bulk vitrification process and a discussion of major equipment design changes that have occurred based on full-scale testing over the past two years and DOE reviews.

VAN BEEK JE

2008-02-14T23:59:59.000Z

208

Manzanita Hybrid Power system Project Final Report  

DOE Green Energy (OSTI)

The Manzanita Indian Reservation is located in southeastern San Diego County, California. The Tribe has long recognized that the Reservation has an abundant wind resource that could be commercially utilized to its benefit, and in 1995 the Tribe established the Manzanita Renewable Energy Office. Through the U.S. Department of Energy's Tribal Energy Program the Band received funds to install a hybrid renewable power system to provide electricity to one of the tribal community buildings, the Manzanita Activities Center (MAC building). The project began September 30, 1999 and was completed March 31, 2005. The system was designed and the equipment supplied by Northern Power Systems, Inc, an engineering company with expertise in renewable hybrid system design and development. Personnel of the National Renewable Energy Laboratory provided technical assistance in system design, and continued to provide technical assistance in system monitoring. The grid-connected renewable hybrid wind/photovoltaic system provides a demonstration of a solar/wind energy hybrid power-generating project on Manzanita Tribal land. During the system design phase, the National Renewable Energy Lab estimated that the wind turbine is expected to produce 10,000-kilowatt hours per year and the solar array 2,000-kilowatt hours per year. The hybrid system was designed to provide approximately 80 percent of the electricity used annually in the MAC building. The project proposed to demonstrate that this kind of a system design would provide highly reliable renewable power for community uses.

Trisha Frank

2005-03-31T23:59:59.000Z

209

Small geothermal electric systems for remote powering  

DOE Green Energy (OSTI)

This report describes conditions and costs at which quite small (100 to 1,000 kilowatt) geothermal systems could be used for off-grid powering at remote locations. This is a first step in a larger process of determining locations and conditions at which markets for such systems could be developed. The results suggest that small geothermal systems offer substantial economic and environmental advantages for powering off-grid towns and villages. Geothermal power is most likely to be economic if the system size is 300 kW or greater, down to reservoir temperatures of 100{degree}C. For system sizes smaller than 300 kW, the economics can be favorable if the reservoir temperature is about 120{degree}C or above. Important markets include sites remote from grids in many developing and developed countries. Estimates of geothermal resources in many developing countries are shown.

Entingh, Daniel J.; Easwaran, Eyob.; McLarty, Lynn

1994-08-08T23:59:59.000Z

210

Photonic Power Systems Inc | Open Energy Information  

Open Energy Info (EERE)

Power Systems Inc Power Systems Inc Jump to: navigation, search Name Photonic Power Systems Inc Place Cupertino, California Zip 95014-2305 Product Provider of GaAs and InP-based solutions for delivering electrical power over fibre for numerous electronic applications. Coordinates 37.31884°, -122.029244° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.31884,"lon":-122.029244,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

211

Superconductivity for electric power systems: Program overview  

SciTech Connect

Largely due to government and private industry partnerships, electric power applications based upon high-temperature superconductivity are now being designed and tested only seven years after the discovery of the high-temperature superconductors. These applications offer many benefits to the national electric system including: increased energy efficiency, reduced equipment size, reduced emissions, increased stability/reliability, deferred expansion, and flexible electricity dispatch/load management. All of these benefits have a common outcome: lower electricity costs and improved environmental quality. The U.S. Department of Energy (DOE) sponsors research and development through its Superconductivity Program for Electric Power Systems. This program will help develop the technology needed for U.S. industries to commercialize high-temperature superconductive electric power applications. DOE envisions that by 2010 the U.S. electric power systems equipment industry will regain a major share of the global market by offering superconducting products that outperform the competition.

Not Available

1995-02-01T23:59:59.000Z

212

Princeton Power Systems | Open Energy Information  

Open Energy Info (EERE)

Power Systems Power Systems Jump to: navigation, search Name Princeton Power Systems Place Princeton, New Jersey Zip 8540 Product Focused on advanced power conversion technologies -controllers and inverters. Coordinates 43.85105°, -89.129909° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.85105,"lon":-89.129909,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

213

Keeping an eye on power system dynamics  

SciTech Connect

An interconnected power system is one of the largest and most complex of human achievements. It is maintained in a stable dynamic state only by tight control and protection, plus intelligent and diligent operation. Operating details are taken for granted by the general public; only when some catastrophic failure takes place is power system stability seen as newsworthy. Faults occur on power systems, most often through natural phenomena beyond human control. However, a well designed system will, for the most common faults, recover automatically and continue power delivery with very little inconvenience to its customers. This level of performance is achieved at a high cost in terms of manpower and equipment. In the future, the market economy is likely to force power systems much closer to their limits of stable operation, and operating decisions will have to be based on accurate, online system information and simulations rather than the current practice of extensive offline simulation of a comprehensive set of possible system operating conditions.

Hauer, J.; Johnson, J. [Pacific Northwest National Lab., Richland, WA (United States); Mittelstadt, B.; Litzenberger, W. [Bonneville Power Administration, Portland, OR (United States); Trudnowski, D.; Rogers, G.

1997-10-01T23:59:59.000Z

214

Interline Photovoltaic (I-PV) power system - A novel concept of power flow control and management  

E-Print Network (OSTI)

This paper presents a new system configuration for a large-scale Photovoltaic (PV) power system with multi-line transmission/distribution networks. A PV power plant is reconfigured in a way that two adjacent power system ...

Khadkikar, Vinod

215

Transient Stability Assessment of Power System with Large Amount of Wind Power Penetration: the  

E-Print Network (OSTI)

: a danish study case," Int. Journal of Eletrical Power and Energy Systems, vol. 28, no. 1, pp 48-57, Oct on the transient fault behavior of the Nordic power system," Int. Journal of Eletrical Power and Energy Systems

Chen, Zhe

216

TidGen Power System Commercialization Project  

SciTech Connect

ORPC Maine, LLC, a wholly-owned subsidiary of Ocean Renewable Power Company, LLC (collectively ORPC), submits this Final Technical Report for the TidGen® Power System Commercialization Project (Project), partially funded by the U.S. Department of Energy (DE-EE0003647). The Project was built and operated in compliance with the Federal Energy Regulatory Commission (FERC) pilot project license (P-12711) and other permits and approvals needed for the Project. This report documents the methodologies, activities and results of the various phases of the Project, including design, engineering, procurement, assembly, installation, operation, licensing, environmental monitoring, retrieval, maintenance and repair. The Project represents a significant achievement for the renewable energy portfolio of the U.S. in general, and for the U.S. marine hydrokinetic (MHK) industry in particular. The stated Project goal was to advance, demonstrate and accelerate deployment and commercialization of ORPC’s tidal-current based hydrokinetic power generation system, including the energy extraction and conversion technology, associated power electronics, and interconnection equipment capable of reliably delivering electricity to the domestic power grid. ORPC achieved this goal by designing, building and operating the TidGen® Power System in 2012 and becoming the first federally licensed hydrokinetic tidal energy project to deliver electricity to a power grid under a power purchase agreement in North America. Located in Cobscook Bay between Eastport and Lubec, Maine, the TidGen® Power System was connected to the Bangor Hydro Electric utility grid at an on-shore station in North Lubec on September 13, 2012. ORPC obtained a FERC pilot project license for the Project on February 12, 2012 and the first Maine Department of Environmental Protection General Permit issued for a tidal energy project on January 31, 2012. In addition, ORPC entered into a 20-year agreement with Bangor Hydro Electric Company on January 1, 2013 for up to 5 megawatts at a price of $215/MWh, escalating at 2.0% per year.

Sauer, Christopher R. [President & CEO; McEntee, Jarlath [VP Engineering & CTO

2013-12-30T23:59:59.000Z

217

Electromechanical Oscillations in Hydro-Dominant Power Systems: An Application to the Colombian Power System.  

E-Print Network (OSTI)

??Power system modeling that captures the dynamic behavior of the different components interacting in an electric grid is useful in understanding some observed phenomena that… (more)

Villegas, Hugo N.

2011-01-01T23:59:59.000Z

218

POWER GENERATING NEUTRONIC REACTOR SYSTEM  

DOE Patents (OSTI)

This patent relates to reactor systems of the type wherein the cooiing medium is a liquid which is converted by the heat of the reaction to steam which is conveyed directly to a pnime mover such as a steam turbine driving a generatore after which it is condensed and returred to the coolant circuit. In this design, the reactor core is disposed within a tank for containing either a slurry type fuel or an aggregation of solid fuel elements such as elongated rods submerged in a liquid moderator such as heavy water. The top of the tank is provided with a nozzle which extends into an expansion chamber connected with the upper end of the tank, the coolant being maintained in the expansion chamber at a level above the nozzle and the steam being formed in the expansion chamber.

Vernon, H.C.

1958-03-01T23:59:59.000Z

219

Power-Invariant Magnetic System Modeling  

E-Print Network (OSTI)

In all energy systems, the parameters necessary to calculate power are the same in functionality: an effort or force needed to create a movement in an object and a flow or rate at which the object moves. Therefore, the power equation can generalized as a function of these two parameters: effort and flow, P = effort * flow. Analyzing various power transfer media this is true for at least three regimes: electrical, mechanical and hydraulic but not for magnetic. This implies that the conventional magnetic system model (the reluctance model) requires modifications in order to be consistent with other energy system models. Even further, performing a comprehensive comparison among the systems, each system's model includes an effort quantity, a flow quantity and three passive elements used to establish the amount of energy that is stored or dissipated as heat. After evaluating each one of them, it was clear that the conventional magnetic model did not follow the same pattern: the reluctance, as analogous to the electric resistance, should be a dissipative element instead it is an energy storage element. Furthermore, the two other elements are not defined. This difference has initiated a reevaluation of the conventional magnetic model. In this dissertation the fundamentals on electromagnetism and magnetic materials that supports the modifications proposed to the magnetic model are presented. Conceptual tests to a case study system were performed in order to figure out the network configuration that better represents its real behavior. Furthermore, analytical and numerical techniques were developed in MATLAB and Simulink in order to validate our model. Finally, the feasibility of a novel concept denominated magnetic transmission line was developed. This concept was introduced as an alternative to transmit power. In this case, the media of transport was a magnetic material. The richness of the power-invariant magnetic model and its similarities with the electric model enlighten us to apply concepts and calculation techniques new to the magnetic regime but common to the electric one, such as, net power, power factor, and efficiency, in order to evaluate the power transmission capabilities of a magnetic system. The fundamental contribution of this research is that it presents an alternative to model magnetic systems using a simpler, more physical approach. As the model is standard to other systems' models it allows the engineer or researcher to perform analogies among systems in order to gather insights and a clearer understanding of magnetic systems which up to now has been very complex and theoretical.

Gonzalez Dominguez, Guadalupe Giselle

2011-08-01T23:59:59.000Z

220

Coordination of reactive power scheduling in a multi-area power system operated by independent utilities.  

E-Print Network (OSTI)

??This thesis addresses the problem of reactive power scheduling in a power system with several areas controlled by independent transmission system operators (TSOs). To design… (more)

Phulpin, Yannick

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Naturalistic Decision Making For Power System Operators  

Science Conference Proceedings (OSTI)

Abstract: Motivation -- As indicated by the Blackout of 2003, the North American interconnected electric system is vulnerable to cascading outages and widespread blackouts. Investigations of large scale outages often attribute the causes to the three T’s: Trees, Training and Tools. A systematic approach has been developed to document and understand the mental processes that an expert power system operator uses when making critical decisions. The approach has been developed and refined as part of a capability demonstration of a high-fidelity real-time power system simulator under normal and emergency conditions. To examine naturalistic decision making (NDM) processes, transcripts of operator-to-operator conversations are analyzed to reveal and assess NDM-based performance criteria. Findings/Design -- The results of the study indicate that we can map the Situation Awareness Level of the operators at each point in the scenario. We can also identify clearly what mental models and mental simulations are being performed at different points in the scenario. As a result of this research we expect that we can identify improved training methods and improved analytical and visualization tools for power system operators. Originality/Value -- The research applies for the first time, the concepts of Recognition Primed Decision Making, Situation Awareness Levels and Cognitive Task Analysis to training of electric power system operators. Take away message -- The NDM approach provides an ideal framework for systematic training management and mitigation to accelerate learning in team-based training scenarios with high-fidelity power grid simulators.

Greitzer, Frank L.; Podmore, Robin; Robinson, Marck; Ey, Pamela

2009-06-23T23:59:59.000Z

222

Power electronics system modeling and simulation  

SciTech Connect

This paper introduces control system design based softwares, SIMNON and MATLAB/SIMULINK, for power electronics system simulation. A complete power electronics system typically consists of a rectifier bridge along with its smoothing capacitor, an inverter, and a motor. The system components, featuring discrete or continuous, linear or nonlinear, are modeled in mathematical equations. Inverter control methods,such as pulse-width-modulation and hysteresis current control, are expressed in either computer algorithms or digital circuits. After describing component models and control methods, computer programs are then developed for complete systems simulation. Simulation results are mainly used for studying system performances, such as input and output current harmonics, torque ripples, and speed responses. Key computer programs and simulation results are demonstrated for educational purposes.

Lai, Jih-Sheng

1994-12-31T23:59:59.000Z

223

Multilevel converters for power system applications  

SciTech Connect

Multilevel converters are emerging as a new breed of power converter options for power system applications. These converters are most suitable for high voltage high power applications because they connect devices in series without the need for component matching. One of the major limitations of the multilevel converters is the voltage unbalance between different levels. To avoid voltage unbalance between different levels, several techniques have been proposed for different applications. Excluding magnetic-coupled converters, this paper introduces three multilevel voltage source converters: (1) diode-clamp, (2) flying-capacitors, and (3) cascaded inverters with separate dc sources. The operation principle, features, constraints, and potential applications of these converters will be discussed.

Lai, J.S.; Stovall, J.P. [Oak Ridge National Lab., TN (United States); Peng, F.Z. [Univ. of Tennessee, Knoxville, TN (United States)]|[Oak Ridge National Lab., TN (United States)

1995-09-01T23:59:59.000Z

224

Western Area Power Administration. Combined power system financial statements  

Science Conference Proceedings (OSTI)

This report presents the results of the independent certified public accountants` audit of the Western Area Power Administration`s combined power system statements of assets, Federal investment and liabilities, and the related combined statements of revenues, expenses and accumulated net revenues, and cash flows. The auditors` report on Westerns internal control structure disclosed three new reportable conditions concerning the lack of: (1) a reconciliation of stores inventory from subsidiary ledgers to summary financial information, (2) communication of interest during construction and related adjustments to interest on Federal investment, and (3) a system to prevent and detect power billing errors. None of the conditions were considered to be material weaknesses. Western provided concurrence and corrective action plans. The auditors` report on Western`s compliance with laws and regulations also disclosed two new instances of noncompliance. Western failed to calculate nonreimbursable expenses in accordance with the Grand Canyon Protection Act and had an unexplained difference in gross Federal investment balances used to calculate interest on Federal investment. Western provided concurrence and corrective action plans for the instances.

NONE

1998-02-26T23:59:59.000Z

225

A novel power block for CSP systems  

SciTech Connect

Concentrating Solar Thermal Power (CSP) and in particular parabolic trough, is a proven large-scale solar power technology. However, CSP cost is not yet competitive with conventional alternatives unless subsidized. Current CSP plants typically include a condensing steam cycle power block which was preferably designed for a continuous operation and higher operating conditions and therefore, limits the overall plant cost effectiveness and deployment. The drawbacks of this power block are as follows: (i) no power generation during low insolation periods (ii) expensive, large condenser (typically water cooled) due to the poor extracted steam properties (high specific volume, sub-atmospheric pressure) and (iii) high installation and operation costs. In the current study, a different power block scheme is proposed to eliminate these obstacles. This power block includes a top Rankine cycle with a back pressure steam turbine and a bottoming Kalina cycle comprising another back pressure turbine and using ammonia-water mixture as a working fluid. The bottoming (moderate temperature) cycle allows power production during low insolation periods. Because of the superior ammonia-water vapor properties, the condensing system requirements are much less demanding and the operation costs are lowered. Accordingly, air cooled condensers can be used with lower economical penalty. Another advantage is that back pressure steam turbines have a less complex design than condensing steam turbines which make their costs lower. All of these improvements could make the combined cycle unit more cost effective. This unit can be applicable in both parabolic trough and central receiver (solar tower) plants. The potential advantage of the new power block is illustrated by a detailed techno-economical analysis of two 50 MW parabolic trough power plants, comparing between the standard and the novel power block. The results indicate that the proposed plant suggests a 4-11% electricity cost saving. (author)

Mittelman, Gur [ASP Ltd., Advanced Solar Power, Industrial Zone, Be'er Tuviyya (Israel); Epstein, Michael [Solar Research Facilities Unit, Weizmann Institute of Science (Israel)

2010-10-15T23:59:59.000Z

226

Control system for wind-powered generators  

DOE Green Energy (OSTI)

In a system of wind-powered generators, a reliable yet inexpensive control system is desirable. Such a system would be completely automatic so it could be left unattended for long periods. It would respond to electrical representations of data such as bearing temperature, vibration, wind velocity, turbine velocity, torque, or any other pertinent data. It would respond by starting or stopping the turbine, controlling the loading, or sounding an alarm. A microprocessor-based controller capable of these functions is described.

Kroth, G.J.

1977-05-01T23:59:59.000Z

227

Analysis and design of power conditioning systems  

E-Print Network (OSTI)

A combination of high prices of fossil fuels and the increased awareness of their negative environmental impact has influenced the development of new cleaner energy sources. Among various viable technologies, fuel cells have emerged as one of the most promising sources for both portable and stationary applications. Fuel cell stacks produce DC voltage with a 2:1 variation in output voltage from no load to full load conditions. Hence, to increase the utilization efficiency and system stability, a power conditioner consisting of DC-DC and DC-AC converters is required for load interface. The design of power conditioners is driven by the application. This dissertation presents several different solutions for applications ranging from low-power portable sources for small electronics and laptop computers to megawatt-power applications for fuel cell power plants. The design and analysis for each power conditioner is presented in detail and the performance is verified using simulations and prototypes. Special consideration is given to the role of supercapacitors who act as the additional energy storage elements. It is shown that the supercapacitor connected at the terminals of a fuel cell can contribute to increased steady state stability when powering constant power loads, improved transient stability against load transients, and increased fuel efficiency (i.e. reduced hydrogen consumption).

Harfman Todorovic, Maja

2008-05-01T23:59:59.000Z

228

Pages that link to "Next Generation Power Systems Inc" | Open...  

Open Energy Info (EERE)

Edit History Share this page on Facebook icon Twitter icon Pages that link to "Next Generation Power Systems Inc" Next Generation Power Systems Inc Jump to: navigation,...

229

Changes related to "Next Generation Power Systems Inc" | Open...  

Open Energy Info (EERE)

Special page Share this page on Facebook icon Twitter icon Changes related to "Next Generation Power Systems Inc" Next Generation Power Systems Inc Jump to: navigation,...

230

Low Cost High Concentration PV Systems for Utility Power Generation...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Other Agencies You are here Home Low Cost High Concentration PV Systems for Utility Power Generation Low Cost High Concentration PV Systems for Utility Power Generation An...

231

Low Cost High Concentration PV Systems for Utility Power Generation...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Other Agencies You are here Home Low Cost High Concentration PV Systems for Utility Power Generation Amonix, Inc. Low Cost High Concentration PV Systems for Utility Power...

232

FERC Presendation: Demand Response as Power System Resources...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

FERC Presendation: Demand Response as Power System Resources, October 29, 2010 FERC Presendation: Demand Response as Power System Resources, October 29, 2010 Federal Energy...

233

Electricity storage for short term power system service (Smart...  

Open Energy Info (EERE)

storage for short term power system service (Smart Grid Project) Jump to: navigation, search Project Name Electricity storage for short term power system service Country Denmark...

234

Energy Storage Systems 2007 Peer Review - Power Electronics Presentati...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Power Electronics Presentations Energy Storage Systems 2007 Peer Review - Power Electronics Presentations The U.S. DOE Energy Storage Systems Program (ESS) held an annual peer...

235

Future Power Systems 20: The Smart Enterprise, its Objective...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

0: The Smart Enterprise, its Objective and Forecasting. Future Power Systems 20: The Smart Enterprise, its Objective and Forecasting. Future Power Systems 20: The Smart Enterprise,...

236

New optimization techniques for power system generation scheduling.  

E-Print Network (OSTI)

??Generation scheduling in restructured electric power systems is critical to maintain the stability and security of a power system and economical operation of the electricity… (more)

Sun, Wei

2011-01-01T23:59:59.000Z

237

GWPS Global Wind Power Systems | Open Energy Information  

Open Energy Info (EERE)

GWPS Global Wind Power Systems Jump to: navigation, search Name GWPS (Global Wind Power Systems) Place Hamburg, Germany Zip 20095 Sector Wind energy Product Company specialised in...

238

Systems and methods for an integrated electrical sub-system powered by wind energy  

DOE Patents (OSTI)

Various embodiments relate to systems and methods related to an integrated electrically-powered sub-system and wind power system including a wind power source, an electrically-powered sub-system coupled to and at least partially powered by the wind power source, the electrically-powered sub-system being coupled to the wind power source through power converters, and a supervisory controller coupled to the wind power source and the electrically-powered sub-system to monitor and manage the integrated electrically-powered sub-system and wind power system.

Liu, Yan (Ballston Lake, NY); Garces, Luis Jose (Niskayuna, NY)

2008-06-24T23:59:59.000Z

239

Accelrate Power Systems | Open Energy Information  

Open Energy Info (EERE)

Accelrate Power Systems Accelrate Power Systems Jump to: navigation, search Name Accelrate Power Systems Place Vancouver, British Columbia, Canada Zip V6E 4G1 Product High Speed Battery Charger Technology. Coordinates 49.26044°, -123.114034° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":49.26044,"lon":-123.114034,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

240

INI Power Systems | Open Energy Information  

Open Energy Info (EERE)

INI Power Systems INI Power Systems Jump to: navigation, search Name INI Power Systems Place Cary, North Carolina Zip 27513 Product Direct methanol fuel cells targeted at the portable electronics marketplace. Coordinates 35.78933°, -78.781169° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.78933,"lon":-78.781169,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Hex Power System | Open Energy Information  

Open Energy Info (EERE)

Hex Power System Hex Power System Jump to: navigation, search Name Hex Power System Place Seoul, Korea (Republic) Zip 152-780 Sector Solar Product Main business in manufacturing solar inverters. Coordinates 37.557121°, 126.977379° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.557121,"lon":126.977379,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

242

Northern Power Systems Inc | Open Energy Information  

Open Energy Info (EERE)

Northern Power Systems Inc Northern Power Systems Inc Place Waitsfield, Vermont Zip 5648 Sector Wind energy Product Vermont-based wind energy company that designs, builds, installs and maintains power generation systems. Coordinates 44.184296°, -72.838898° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.184296,"lon":-72.838898,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

243

Radiation beam calorimetric power measurement system  

DOE Patents (OSTI)

A radiation beam calorimetric power measurement system for measuring the average power of a beam such as a laser beam, including a calorimeter configured to operate over a wide range of coolant flow rates and being cooled by continuously flowing coolant for absorbing light from a laser beam to convert the laser beam energy into heat. The system further includes a flow meter for measuring the coolant flow in the calorimeter and a pair of thermistors for measuring the temperature difference between the coolant inputs and outputs to the calorimeter. The system also includes a microprocessor for processing the measured coolant flow rate and the measured temperature difference to determine the average power of the laser beam.

Baker, John (Livermore, CA); Collins, Leland F. (Pleasanton, CA); Kuklo, Thomas C. (Ripon, CA); Micali, James V. (Dublin, CA)

1992-01-01T23:59:59.000Z

244

Modeling Power System Operation with Intermittent Resources  

Science Conference Proceedings (OSTI)

Electricity generating companies and power system operators face the need to minimize total fuel cost or maximize total profit over a given time period. These issues become optimization problems subject to a large number of constraints that must be satisfied simultaneously. The grid updates due to smart-grid technologies plus the penetration of intermittent re- sources in electrical grid introduce additional complexity to the optimization problem. The Renewable Integration Model (RIM) is a computer model of interconnected power system. It is intended to provide insight and advice on complex power systems management, as well as answers to integration of renewable energy questions. This paper describes RIM basic design concept, solution method, and the initial suite of modules that it supports.

Marinovici, Maria C.; Kirkham, Harold; Glass, Kevin A.; Carlsen, Leif C.

2013-02-27T23:59:59.000Z

245

Uniform-Format Solid Feedstock Supply System: A Commodity-Scale Design to Produce an Infrastructure-Compatible Bulk Solid from Lignocellulosic Biomass -- Executive Summary  

DOE Green Energy (OSTI)

This report, Uniform-Format Solid Feedstock Supply System: A Commodity-Scale Design to Produce an Infrastructure-Compatible Bulk Solid from Lignocellulosic Biomass, prepared by Idaho National Laboratory (INL), acknowledges the need and provides supportive designs for an evolutionary progression from present day conventional bale-based supply systems to a uniform-format, bulk solid supply system that transitions incrementally as the industry launches and matures. These designs couple to and build from current state of technology and address science and engineering constraints that have been identified by rigorous sensitivity analyses as having the greatest impact on feedstock supply system efficiencies and costs.

J. Richard Hess; Christopher T. Wright; Kevin L. Kenney; Erin M. Searcy

2009-04-01T23:59:59.000Z

246

Interconnected Power System Dynamics Tutorial: Dynamics of Interconnected Power Systems Tutorial: Second Edition  

Science Conference Proceedings (OSTI)

Thousands of readers in the power system community have benefited from the first edition of this tutorial as a training tool and reference document on power system operation and engineering. This edition substantially revises the earlier tutorial and incorporates many suggestions and requests offered by users.

1998-01-20T23:59:59.000Z

247

Power System Equipment Module Test Project  

DOE Green Energy (OSTI)

The technology of electric power generation when applying the binary process to hydrothermal resources had not yet been demonstrated in the United States. Accordingly, on November 10, 1977, the Electric Power Research Institute and the Department of Energy, acting through the Lawrence Berkeley Laboratory, agreed to cofund the Power System Equipment Module Test Project. The Power System Equipment Module Test Project consisted of a field test program to accomplish the objectives listed below while heating hydrocarbon fluids to above their critical points, expanding these fluids, and subsequently, condensing them below their critical points: (1) Verify the performance of state-of-the-art heat exchangers in geothermal service; (2) Verify the heat exchangers' performance heating either selected pure light hydrocarbons or selected mixtures of light hydrocarbons in the vicinity of their respective critical pressures and temperatures; (3) Establish overall heat transfer coefficients that might be used for design of commercial-size geothermal power plants using the same geothermal brine and light hydrocarbon working fluids; (4) Perform and investigate the above under representative fluid operating conditions during which the production wells would be pumped. The project was accomplished by diverting approximately 200 gpm of the flow from one of Magma Power Company's geothermal wells in the East Mesa Geothermal Field. After the heat was removed from the geothermal brine flow, the cooled flow was returned to Magma Power Company and recombined with the main brine stream for disposal by reinjection. Approximately five thermal megawatts was transferred from geothermal brine to hydrocarbon working fluids in a closed system. This heat was removed from the working fluids in a condenser and subsequently rejected to the environment by a wet cooling tower. The thermodynamic performance of both the working fluids and the system components was measured during the test program to achieve the project's objectives.

Schilling, J.R.

1980-12-01T23:59:59.000Z

248

Modeling of power electronics for simulation based analysis of power systems  

Science Conference Proceedings (OSTI)

Given the increased penetration of power electronic converters in power systems it is necessary to study their impact in the system operation. In order to achieve that goal the power converters must be appropriately modeled in simulation or analytical ... Keywords: hierarchy, interconnected power systems, power electronics, stability

S. Rosado; R. Burgos; S. Ahmed; F. Wang; D. Boroyevich

2007-07-01T23:59:59.000Z

249

Maximizing efficiency of solar-powered systems by load matching  

Science Conference Proceedings (OSTI)

Solar power is an important source of renewable energy for many low-power systems. Matching the power consumption level with the supply level can make a great difference in the efficiency of power utilization. This paper proposes a source-tracking power ... Keywords: load matching, photovoltaics, power management, power model, solar energy, solar-aware

Dexin Li; Pai H. Chou

2004-08-01T23:59:59.000Z

250

InPower Systems | Open Energy Information  

Open Energy Info (EERE)

InPower Systems InPower Systems Jump to: navigation, search Name InPower Systems Place Carbondale, Colorado Zip 81623 Sector Geothermal energy, Solar Product InPower Systems designs, installs and maintains turn-key solar, solar thermal, geothermal and energy smart systems in homes and businesses in Colorado. Coordinates 41.573959°, -75.501361° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.573959,"lon":-75.501361,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

251

Strategic planning for power system restorations  

SciTech Connect

This paper considers the power system restoration planning problem (PSRPP) for disaster recovery, a fundamental problem faced by all populated areas. PSRPPs are complex stochastic optimization problems that combine resource allocation, warehouse location, and vehicle routing considerations. Furthermore, electrical power systems are complex systems whose behavior can only be determined by physics simulations. Moreover, these problems must be solved under tight runtime constraints to be practical in real-world disaster situations. This work is three fold: (1) it formalizes the specification of PSRPPs; (2) introduces a simple optimization-simulation hybridization necessary for solving PSRPPs; and (3) presents a complete restoration algorithm that utilizes the strengths of mixed integer programming, constraint programming, and large neighborhood search. This paper studied a novel problem in the field of humanitarian logistics, the Power System Restoration Problem (PSRPP). The PSRPP models the strategic planning process for post disaster power system recovery. The paper proposed a multi-stage stochastic hybrid optimization algorithm that yields high quality solutions to real-world benchmarks provided by Los Alamos National Laboratory (LANL). The algorithm uses a variety of technologies, including MIP, constraint programming, and large neighborhood search, to exploit the structure of each individual optimization subproblem. The experimental results on hurricane disaster benchmarks indicate that the algorithm is practical from a computational standpoint and produce significant improvements over existing relief delivery procedures.

Bent, Russell W [Los Alamos National Laboratory; Van Hententyck, Pascal [BROWN UNIV.; Coffrin, Carleton [BROWN UNIV.

2010-10-12T23:59:59.000Z

252

Innovative Power Systems | Open Energy Information  

Open Energy Info (EERE)

Power Systems Power Systems Jump to: navigation, search Logo: Innovative Power Systems Name Innovative Power Systems Address 1413 Hunting Valley Road Place St. Paul, Minnesota Zip 55108 Sector Solar Product solar and wind electric systems Year founded 1991 Phone number 612-623-3246 Website http://www.ips-solar.com/Index Coordinates 44.98387°, -93.204646° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.98387,"lon":-93.204646,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

253

Communication Simulations for Power System Applications  

SciTech Connect

New smart grid technologies and concepts, such as dynamic pricing, demand response, dynamic state estimation, and wide area monitoring, protection, and control, are expected to require considerable communication resources. As the cost of retrofit can be high, future power grids will require the integration of high-speed, secure connections with legacy communication systems, while still providing adequate system control and security. While considerable work has been performed to create co-simulators for the power domain with load models and market operations, limited work has been performed in integrating communications directly into a power domain solver. The simulation of communication and power systems will become more important as the two systems become more inter-related. This paper will discuss ongoing work at Pacific Northwest National Laboratory to create a flexible, high-speed power and communication system co-simulator for smart grid applications. The framework for the software will be described, including architecture considerations for modular, high performance computing and large-scale scalability (serialization, load balancing, partitioning, cross-platform support, etc.). The current simulator supports the ns-3 (telecommunications) and GridLAB-D (distribution systems) simulators. Ongoing and future work will be described, including planned future expansions for a traditional transmission solver. A test case using the co-simulator, utilizing a transactive demand response system created for the Olympic Peninsula and AEP gridSMART demonstrations, requiring two-way communication between distributed and centralized market devices, will be used to demonstrate the value and intended purpose of the co-simulation environment.

Fuller, Jason C.; Ciraci, Selim; Daily, Jeffrey A.; Fisher, Andrew R.; Hauer, Matthew L.

2013-05-29T23:59:59.000Z

254

Applications of superconductivity in electric power systems  

DOE Green Energy (OSTI)

Major applications of superconductivity to power systems are considered. The state of the art of materials and refrigeration developments that are necessary for these applications is reviewed. Specific applications including superconducting cables for power transmission and superconducting magnetics for MHD generators, for energy storage, and for magnetically-confined fusion power generation are discussed in terms of their advantages and the progress being made toward introducing the various devices into real situations. It is concluded that the feasibility of superconducting devices is assured, and that, although their performance, reliability, and cost effectiveness for use in power generation, transmission, and storage remain to be proven, it is reasonable to expect that superconductivity can make it in the real world. (LCL)

Keller, W.E.

1976-01-01T23:59:59.000Z

255

LED lamp power management system and method  

DOE Patents (OSTI)

An LED lamp power management system and method including an LED lamp having an LED controller 58; a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 reduces power loss in one of the channel switch 62 and the shunt switch 68 when LED lamp electronics power loss (P.sub.loss) exceeds an LED lamp electronics power loss limit (P.sub.lim); and each of the channel switches 62 receives a channel switch control signal 63 from the LED controller 58 and each of the shunt switches 68 receives a shunt switch control signal 69 from the LED controller 58.

Gaines, James; Clauberg, Bernd; Van Erp, Josephus A. M.

2013-03-19T23:59:59.000Z

256

Study of a Wind Farm Power System: Preprint  

Science Conference Proceedings (OSTI)

A wind power system differs from a conventional power system. In a conventional power plant, the operator can control the plant's output. The output of a wind farm cannot be controlled because the output fluctuates with the wind. In this paper, we investigate the power-system interaction resulting from power variations at wind farms using steady-state analysis.

Muljadi, E.; Wan, Y.; Butterfield, C. P.; Parsons, B.

2002-01-01T23:59:59.000Z

257

The Applied Mathematics for Power Systems (AMPS)  

SciTech Connect

Increased deployment of new technologies, e.g., renewable generation and electric vehicles, is rapidly transforming electrical power networks by crossing previously distinct spatiotemporal scales and invalidating many traditional approaches for designing, analyzing, and operating power grids. This trend is expected to accelerate over the coming years, bringing the disruptive challenge of complexity, but also opportunities to deliver unprecedented efficiency and reliability. Our Applied Mathematics for Power Systems (AMPS) Center will discover, enable, and solve emerging mathematics challenges arising in power systems and, more generally, in complex engineered networks. We will develop foundational applied mathematics resulting in rigorous algorithms and simulation toolboxes for modern and future engineered networks. The AMPS Center deconstruction/reconstruction approach 'deconstructs' complex networks into sub-problems within non-separable spatiotemporal scales, a missing step in 20th century modeling of engineered networks. These sub-problems are addressed within the appropriate AMPS foundational pillar - complex systems, control theory, and optimization theory - and merged or 'reconstructed' at their boundaries into more general mathematical descriptions of complex engineered networks where important new questions are formulated and attacked. These two steps, iterated multiple times, will bridge the growing chasm between the legacy power grid and its future as a complex engineered network.

Chertkov, Michael [Los Alamos National Laboratory

2012-07-24T23:59:59.000Z

258

Smart Grid - Transforming Power System Operations  

SciTech Connect

Abstract—Electric power systems are entering a new realm of operations. Large amounts of variable generation tax our ability to reliably operate the system. Couple this with a greater reliance on the electricity network to serve consumer demand that is likely to rise significantly even as we drive for greater efficiency. Trade-offs between energy and environmental needs will be constantly negotiated, while a reliable supply of electricity needs even greater assurance in a world where threats of disruption have risen. Smart grid capabilities are being proposed to help address the challenges confronting system operations. This paper reviews the impact of smart grid functionality on transforming power system operations. It explores models for distributed energy resources (DER – generation, storage, and load) that are appearing on the system. It reviews the evolving nature of electricity markets to deal with this complexity and a change of emphasis on signals from these markets to affect power system control. Smart grid capabilities will also impact reliable operations, while cyber security issues must be addressed as a culture change that influences all system design, implementation, and maintenance. Lastly, the paper explores significant questions for further research and the need for a simulation environment that supports such investigation and informs deployments to mitigate operational issues as they arise.

Widergren, Steven E.; Kirkham, Harold

2010-04-28T23:59:59.000Z

259

Princeton Plasma Physics Lab - Power systems  

NLE Websites -- All DOE Office Websites (Extended Search)

systems The systems, such as systems The systems, such as fusion power plants, that would generate electricity from fusion. en Celebrating the 20th anniversary of the tritium shot heard around the world http://www.pppl.gov/news/2013/12/celebrating-20th-anniversary-tritium-shot-heard-around-world-2

Tensions rose in the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) as the seconds counted down. At stake was the first crucial test of a high-powered mixture of fuel for producing fusion energy. As the control-room clock reached "zero," a flash of light on a closed-circuit television monitor marked a historic achievement:

260

Solar-powered environmental data collection system  

DOE Green Energy (OSTI)

A solar-powered system consisting of a multipurpose remote data collector, a radio data link, and a data receiving station has been designed to acquire data from various remote areas at the Savannah River Plant. A prototype system has been built to monitor gamma radiation at the plant perimeter. It is operating satisfactorily and will be installed to monitor gamma radiation or other environmental parameters at many remote locations on the plant.

Randolph, H.W.

1980-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

West Oahu Solar Powered LED Lighting System  

Science Conference Proceedings (OSTI)

This report describes the design and construction of a solar powered lighting system on the island of Oahu that uses a new Light Emitting Diode (LED) lamp technology. With oil in limited supply and ever increasing energy costs, the construction of photovoltaic (PV) systems has the potential to reduce Hawaiis dependence on imported fossil fuels and help Hawaiian Electric Company (HECO) to meet Hawaiis Renewable Portfolio Standards (RPS).

2006-03-21T23:59:59.000Z

262

Design of isolated renewable hybrid power systems  

Science Conference Proceedings (OSTI)

Isolated electrical power generating units can be used as an economically viable alternative to electrify remote villages where grid extension is not feasible. One of the options for building isolated power systems is by hybridizing renewable power sources like wind, solar, micro-hydro, etc. along with appropriate energy storage. A method to optimally size and to evaluate the cost of energy produced by a renewable hybrid system is proposed in this paper. The proposed method, which is based on the design space approach, can be used to determine the conditions for which hybridization of the system is cost effective. The simple and novel methodology, proposed in this paper, is based on the principles of process integration. It finds the minimum battery capacity when the availability and ratings of various renewable resources as well as load demand are known. The battery sizing methodology is used to determine the sizing curve and thereby the feasible design space for the entire system. Chance constrained programming approach is used to account for the stochastic nature of the renewable energy resources and to arrive at the design space. The optimal system configuration in the entire design space is selected based on the lowest cost of energy, subject to a specified reliability criterion. The effects of variation of the specified system reliability and the coefficient of correlation between renewable sources on the design space, as well as the optimum configuration are also studied in this paper. The proposed method is demonstrated by designing an isolated power system for an Indian village utilizing wind-solar photovoltaic-battery system. (author)

Sreeraj, E.S.; Chatterjee, Kishore [Department of Electrical Engineering, Indian Institute of Technology Bombay, Mumbai 400 076 (India); Bandyopadhyay, Santanu [Department of Energy Science and Engineering, Indian Institute of Technology Bombay, Mumbai 400 076 (India)

2010-07-15T23:59:59.000Z

263

Integration of Storage Devices into Power Systems  

E-Print Network (OSTI)

Report Power Systems Engineering Research Center Empowering Minds to Engineer the Future Electric Energy Report Project Team George Gross, Project Leader Alejandro Dominguez-Garcia University of Illinois to copy without fee all or part of this publication for internal use if appropriate attribution is given

264

NET SYSTEM POWER: A SMALL SHARE OF  

E-Print Network (OSTI)

in-state generation and electricity imports by fuel type. Each year, the gross-system-power mix it was calculated and allocated to different fuel types and renewable energy technologies. In addition to generating used to generate it. Fuel types include coal, natural gas, nuclear, and other fuels, such as distillate

265

Nuclear Power - System Simulations and Operation  

E-Print Network (OSTI)

At the onset of the 21st century, we are searching for reliable and sustainable energy sources that have a potential to support growing economies developing at accelerated growth rates, technology advances improving quality of life and becoming available to larger and larger populations. The quest for robust sustainable energy supplies meeting the above constraints leads us to the nuclear power technology. Today's nuclear reactors are safe and highly efficient energy systems that offer electricity and a multitude of co-generation energy products ranging from potable water to heat for industrial applications. Catastrophic earthquake and tsunami events in Japan resulted in the nuclear accident that forced us to rethink our approach to nuclear safety, requirements and facilitated growing interests in designs, which can withstand natural disasters and avoid catastrophic consequences. This book is one in a series of books on nuclear power published by InTech. It consists of ten chapters on system simulations and operational aspects. Our book does not aim at a complete coverage or a broad range. Instead, the included chapters shine light at existing challenges, solutions and approaches. Authors hope to share ideas and findings so that new ideas and directions can potentially be developed focusing on operational characteristics of nuclear power plants. The consistent thread throughout all chapters is the system-thinking approach synthesizing provided information and ideas. The book targets everyone with interests in system simulations and nuclear power operational aspects as its potential readership groups - students, researchers and practitioners.

Tsvetkov, Pavel

2011-09-01T23:59:59.000Z

266

Wind Farm Power System Model Development: Preprint  

DOE Green Energy (OSTI)

In some areas, wind power has reached a level where it begins to impact grid operation and the stability of local utilities. In this paper, the model development for a large wind farm will be presented. Wind farm dynamic behavior and contribution to stability during transmission system faults will be examined.

Muljadi, E.; Butterfield, C. P.

2004-07-01T23:59:59.000Z

267

Center for Advanced Power Systems CAPS | Open Energy Information  

Open Energy Info (EERE)

on advanced power system technologies with emphasis on the needs of the future naval ship power systems and electricity supply grid of the US. References Center for Advanced Power...

268

Wind Speed Forecasting for Power System Operation  

E-Print Network (OSTI)

In order to support large-scale integration of wind power into current electric energy system, accurate wind speed forecasting is essential, because the high variation and limited predictability of wind pose profound challenges to the power system operation in terms of the efficiency of the system. The goal of this dissertation is to develop advanced statistical wind speed predictive models to reduce the uncertainties in wind, especially the short-term future wind speed. Moreover, a criterion is proposed to evaluate the performance of models. Cost reduction in power system operation, as proposed, is more realistic than prevalent criteria, such as, root mean square error (RMSE) and absolute mean error (MAE). Two advanced space-time statistical models are introduced for short-term wind speed forecasting. One is a modified regime-switching, space-time wind speed fore- casting model, which allows the forecast regimes to vary according to the dominant wind direction and seasons. Thus, it avoids a subjective choice of regimes. The other one is a novel model that incorporates a new variable, geostrophic wind, which has strong influence on the surface wind, into one of the advanced space-time statistical forecasting models. This model is motivated by the lack of improvement in forecast accuracy when using air pressure and temperature directly. Using geostrophic wind in the model is not only critical, it also has a meaningful geophysical interpretation. The importance of model evaluation is emphasized in the dissertation as well. Rather than using RMSE or MAE, the performance of both wind forecasting models mentioned above are assessed by economic benefits with real wind farm data from Pacific Northwest of the U.S and West Texas. Wind forecasts are incorporated into power system economic dispatch models, and the power system operation cost is used as a loss measure for the performance of the forecasting models. From another perspective, the new criterion leads to cost-effective scheduling of system-wide wind generation with potential economic benefits arising from the system-wide generation of cost savings and ancillary services cost savings. As an illustration, the integrated forecasts and economic dispatch framework are applied to the Electric Reliability Council of Texas (ERCOT) equivalent 24- bus system. Compared with persistence and autoregressive models, the first model suggests that cost savings from integration of wind power could be on the scale of tens of millions of dollars. For the second model, numerical simulations suggest that the overall generation cost can be reduced by up to 6.6% using look-ahead dispatch coupled with spatio-temporal wind forecast as compared with dispatch with persistent wind forecast model.

Zhu, Xinxin

2013-08-01T23:59:59.000Z

269

Reliability Assessment of Power Systems with Wind Power Generation.  

E-Print Network (OSTI)

??Wind power generation, the most promising renewable energy, is increasingly attractive to power industry and the whole society and becomes more significant in the portfolio… (more)

Wang, Shu

2008-01-01T23:59:59.000Z

270

NREL: Concentrating Solar Power Research - Systems Analysis  

NLE Websites -- All DOE Office Websites (Extended Search)

Systems Analysis Systems Analysis Featured Resource Learn more about NREL's capabilities in modeling and analysis of CSP Systems. NREL and other national laboratories support U.S. Department of Energy (DOE) systems analysis activities to evaluate and validate the cost, performance, durability, and grid penetration impacts for concentrating solar power (CSP) technologies. DOE's systems analysis program focuses on the greatest opportunities for impact, based on estimates of the current and future costs of CSP plants, subsystems, and components. Opportunities and Potential Impact The DOE SunShot Initiative to reduce the installed cost of solar energy systems by 75% by the end of the decade will require low-cost configurations that are easy to integrate into the electric grid. Systems

271

Restoring Faith in the bulk-power system: an early assessment of mandatory reliability standards  

SciTech Connect

The driving force underlying creation of mandatory reliability standards was the prevention of widespread outages, such as those that occurred in 1965, 1977 and 2003. So far, no similar outage has occurred when an entity is in full compliance with the standards, and NERC and FERC have demonstrated that they will actively enforce compliance while aggressively pursuing entities alleged to be non-compliant. (author)

McAllister, Levi; Dawson, Kelly L.

2010-03-15T23:59:59.000Z

272

Renewable Electricity Futures Study. Volume 4: Bulk Electric Power Systems: Operations and Transmission Planning  

DOE Green Energy (OSTI)

The Renewable Electricity Futures (RE Futures) Study investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. The analysis focused on the sufficiency of the geographically diverse U.S. renewable resources to meet electricity demand over future decades, the hourly operational characteristics of the U.S. grid with high levels of variable wind and solar generation, and the potential implications of deploying high levels of renewables in the future. RE Futures focused on technical aspects of high penetration of renewable electricity; it did not focus on how to achieve such a future through policy or other measures. Given the inherent uncertainties involved with analyzing alternative long-term energy futures as well as the multiple pathways that might be taken to achieve higher levels of renewable electricity supply, RE Futures explored a range of scenarios to investigate and compare the impacts of renewable electricity penetration levels (30%-90%), future technology performance improvements, potential constraints to renewable electricity development, and future electricity demand growth assumptions. RE Futures was led by the National Renewable Energy Laboratory (NREL) and the Massachusetts Institute of Technology (MIT).

Milligan, M.; Ela, E.; Hein, J.; Schneider, T.; Brinkman, G.; Denholm, P.

2012-06-01T23:59:59.000Z

273

Vehicle System Impacts of Fuel Cell System Power Response Capability  

NLE Websites -- All DOE Office Websites (Extended Search)

- 01 - 1959 - 01 - 1959 Vehicle System Impacts of Fuel Cell System Power Response Capability Tony Markel and Keith Wipke National Renewable Energy Laboratory Doug Nelson Virginia Polytechnic University and State Institute Copyright © 2002 Society of Automotive Engineers, Inc. ABSTRACT The impacts of fuel cell system power response capability on optimal hybrid and neat fuel cell vehicle configurations have been explored. Vehicle system optimization was performed with the goal of maximizing fuel economy over a drive cycle. Optimal hybrid vehicle design scenarios were derived for fuel cell systems with 10 to 90% power transient response times of 0, 2, 5, 10, 20, and 40 seconds. Optimal neat fuel cell vehicles where generated for responses times of 0, 2, 5, and 7

274

Filter system cost comparison for IGCC and PFBC power systems  

SciTech Connect

A cost comparison was conducted between the filter systems for two advanced coal-based power plants. The results from this study are presented. The filter system is based on a Westinghouse advanced particulate filter concept, which is designed to operate with ceramic candle filters. The Foster Wheeler second-generation 453 MWe (net) pressurized fluidized-bed combustor (PFBC) and the KRW 458 MWe (net) integrated gasification combined cycle (IGCC) power plants are used for the comparison. The comparison presents the general differences of the two power plants and the process-related filtration conditions for PFBC and IGCC systems. The results present the conceptual designs for the PFBC and IGCC filter systems as well as a cost summary comparison. The cost summary comparison includes the total plant cost, the fixed operating and maintenance cost, the variable operating and maintenance cost, and the effect on the cost of electricity (COE) for the two filter systems.

Dennis, R.A.; McDaniel, H.M.; Buchanan, T. [and others

1995-12-01T23:59:59.000Z

275

Energy storage for hybrid remote power systems  

DOE Green Energy (OSTI)

Energy storage can be a cost-effective component of hybrid remote power systems. Storage serves the special role of taking advantage of intermittent renewable power sources. Traditionally this role has been played by lead-acid batteries, which have high life-cycle costs and pose special disposal problems. Hydrogen or zinc-air storage technologies can reduce life-cycle costs and environmental impacts. Using projected data for advanced energy storage technologies, LLNL ran an optimization for a hypothetical Arctic community with a reasonable wind resource (average wind speed 8 m/s). These simulations showed the life-cycle annualized cost of the total energy system (electric plus space heating) might be reduced by nearly 40% simply by adding wind power to the diesel system. An additional 20 to 40% of the wind-diesel cost might be saved by adding hydrogen storage or zinc-air fuel cells to the system. Hydrogen produced by electrolysis of water using intermittent, renewable power provides inexpensive long-term energy storage. Conversion back to electricity with fuel cells can be accomplished with available technology. The advantages of a hydrogen electrolysis/fuel cell system include low life-cycle costs for long term storage, no emissions of concern, quiet operation, high reliability with low maintenance, and flexibility to use hydrogen as a direct fuel (heating, transportation). Disadvantages include high capital costs, relatively low electrical turn-around efficiency, and lack of operating experience in utility settings. Zinc-air fuel cells can lower capital and life-cycle costs compared to hydrogen, with most of the same advantages. Like hydrogen systems, zinc-air technology promises a closed system for long-term storage of energy from intermittent sources. The turn around efficiency is expected to exceed 60%, while use of waste heat can potentially increase overall energy efficiency to over 80%.

Isherwood, W., LLNL

1998-03-01T23:59:59.000Z

276

Overview of M-C Power`s MCFC power generation system  

SciTech Connect

The IMHEX{reg_sign} fuel cell power generation system is a skid mounted power plant which efficiently generates electricity and useful thermal energy. The primary benefits are its high electric generation efficiency (50% or greater), modular capacities (500 kW to 3 MW per unit) and minimal environmental impacts (less than 1 ppM NO{sub x}). A cost effective, modular capacity fuel cell power plant provides the industry with an attractive alternative to large central station facilities, and its advantages have the potential to optimize the way electric power is generated and distributed to the users. Environmental issues are becoming the single most uncertain aspect of the power business. These issues may be manifested in air emissions permits or allowances for NO{sub x} or SO{sub 2}, energy taxes, CO{sub 2} limits, ``carbon taxes,`` etc. and may appear as siting permits for generation, transmission, or distribution facilities. Utilities are ``down-sizing`` with the goal of becoming the lowest cost supplier of electricity and are beginning to examine the concepts of ``energy service`` to improve their economic competitiveness. These issues are leading utilities to examine the benefits of distributed generation. Siting small capacity generation near the customer loads or at distribution substations can improve system efficiency and quality while reducing distribution system costs. The advantages that fuel cell power plants have over conventional technologies are critical to the success of these evolving opportunities in the power generation marketplace.

Benjamin, T.G.; Woods, R.R.

1993-11-01T23:59:59.000Z

277

Communication architecture based power management for battery efficient system design  

Science Conference Proceedings (OSTI)

Communication-based power management (CBPM) is a new battery-driven system-level power management methodology in which the system-level communication architecture regulates the execution of various system components, with the aim of improving battery ... Keywords: battery efficiency, communication architectures, embedded systems, low power design, power management

Kanishka Lahiri; Sujit Dey; Anand Raghunathan

2002-06-01T23:59:59.000Z

278

Distribution of Wind Power Forecasting Errors from Operational Systems (Presentation)  

SciTech Connect

This presentation offers new data and statistical analysis of wind power forecasting errors in operational systems.

Hodge, B. M.; Ela, E.; Milligan, M.

2011-10-01T23:59:59.000Z

279

Balanced Decomposition for Power System Simulation on Parallel Computers  

E-Print Network (OSTI)

Balanced Decomposition for Power System Simulation on Parallel Computers Felipe Morales, Hugh parallelization strategy is tested in a Parsytec computer incorpo- rating two PowerXplorer systems, each one System. 1 Introduction Power system analysis is intensive in computational terms 1 . In fact, the power

Rudnick, Hugh

280

High Power UV LED Industrial Curing Systems  

Science Conference Proceedings (OSTI)

UV curing is a green technology that is largely underutilized because UV radiation sources like Hg Lamps are unreliable and difficult to use. High Power UV LEDs are now efficient enough to replace Hg Lamps, and offer significantly improved performance relative to Hg Lamps. In this study, a modular, scalable high power UV LED curing system was designed and tested, performing well in industrial coating evaluations. In order to achieve mechanical form factors similar to commercial Hg Lamp systems, a new patent pending design was employed enabling high irradiance at long working distances. While high power UV LEDs are currently only available at longer UVA wavelengths, rapid progress on UVC LEDs and the development of new formulations designed specifically for use with UV LED sources will converge to drive more rapid adoption of UV curing technology. An assessment of the environmental impact of replacing Hg Lamp systems with UV LED systems was performed. Since UV curing is used in only a small portion of the industrial printing, painting and coating markets, the ease of use of UV LED systems should increase the use of UV curing technology. Even a small penetration of the significant number of industrial applications still using oven curing and drying will lead to significant reductions in energy consumption and reductions in the emission of green house gases and solvent emissions.

Karlicek, Robert, F., Jr; Sargent, Robert

2012-05-14T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Probing Signal Design for Power System Identification  

Science Conference Proceedings (OSTI)

This paper investigates the design of effective input signals for low-level probing of power systems. In 2005, 2006, and 2008 the Western Electricity Coordinating Council (WECC) conducted four large-scale system wide tests of the western interconnected power system where probing signals were injected by modulating the control signal at the Celilo end of the Pacific DC intertie. A major objective of these tests is the accurate estimation of the inter-area electromechanical modes. A key aspect of any such test is the design of an effective probing signal that leads to measured outputs rich in information about the modes. This paper specifically studies low-level probing signal design for power-system identification. The paper describes the design methodology and the advantages of this new probing signal which was successfully applied during these tests. This probing input is a multi-sine signal with its frequency content focused in the range of the inter-area modes. The period of the signal is over two minutes providing high-frequency resolution. Up to 15 cycles of the signal are injected resulting in a processing gain of 15. The resulting system response is studied in the time and frequency domains. Because of the new probing signal characteristics, these results show significant improvement in the output SNR compared to previous tests.

Pierre, John W.; Zhou, Ning; Tuffner, Francis K.; Hauer, John F.; Trudnowski, Daniel J.; Mittelstadt, William

2010-05-31T23:59:59.000Z

282

Solar-powered turbocompressor heat pump system  

DOE Patents (OSTI)

The turbocompressor comprises a power turbine and a compressor turbine having respective rotors and on a common shaft, rotatably supported by bearings. A first working fluid is supplied by a power loop and is expanded in the turbine. A second working fluid is compressed in the turbine and is circulated in a heat pump loop. A lubricant is mixed with the second working fluid but is excluded from the first working fluid. The bearings are cooled and lubricated by a system which circulates the second working fluid and the intermixed lubricant through the bearings. Such system includes a pump, a thermostatic expansion valve for expanding the working fluid into the space between the bearings, and a return conduit system for withdrawing the expanded working fluid after it passes through the bearings and for returning the working fluid to the evaporator. A shaft seal excludes the lubricant from the power turbine. The power loop includes a float operable by liquid working fluid in the condenser for controlling a recirculation valve so as to maintain a minimum liquid level in the condenser, while causing a feed pump to pump most of the working fluid into the vapor generator. The heat pump compressor loop includes a float in the condenser for operating and expansion valve to maintain a minimum liquid working fluid level in the condenser while causing most of the working fluid to be expanded into the evaporator.

Landerman, A.M.; Biancardi, F.R.; Melikian, G.; Meader, M.D.; Kepler, C.E.; Anderson, T.J.; Sitler, J.W.

1982-08-12T23:59:59.000Z

283

Solid Oxide Fuel Cell Power Generation Systems  

Science Conference Proceedings (OSTI)

An increasing worldwide demand for premium power, emerging trend towards electric utility deregulation and distributed power generation, global environmental concerns and regulatory controls have accelerated the development of advanced fuel cell based power generation systems. Fuel cells convert chemical energy to electrical energy through electrochemical oxidation of gaseous and/or liquid fuels ranging from hydrogen to hydrocarbons. Electrochemical oxidation of fuels prevents the formation of Nox, while the higher efficiency of the systems reduces carbon dioxide emissions (kg/kWh). Among various fuel cell power generation systems currently being developed for stationary and mobile applications, solid oxide fuel cells (SOFC) offer higher efficiency (up to 80% overall efficiency in hybrid configurations), fuel flexibility, tolerance to CO poisoning, modularity, and use of non-noble construction materials of low strategic value. Tubular, planar, and monolithic cell and stack configurations are currently being developed for stationary and military applications. The current generation of fuel cells uses doped zirconia electrolyte, nickel cermet anode, doped Perovskite cathode electrodes and predominantly ceramic interconnection materials. Fuel cells and cell stacks operate in a temperature range of 800-1000 *C. Low cost ($400/kWe), modular (3-10kWe) SOFC technology development approach of the Solid State Energy Conversion Alliance (SECA) initiative of the USDOE will be presented and discussed. SOFC technology will be reviewed and future technology development needs will be addressed.

Singh, Prabhakar; Pederson, Larry R.; Simner, Steve P.; Stevenson, Jeffry W.; Viswanathan, Vish V.

2001-05-12T23:59:59.000Z

284

Ballard Power Systems | Open Energy Information  

Open Energy Info (EERE)

Ballard Power Systems Ballard Power Systems Address Two Industrial Avenue Place Lowell, Massachusetts Zip 01851 Sector Hydrogen Product Designs and manufactures fuel cell systems Website http://www.ballard.com/ Coordinates 42.6148469°, -71.3226869° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.6148469,"lon":-71.3226869,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

285

Tri Power Systems Inc | Open Energy Information  

Open Energy Info (EERE)

Inc Inc Jump to: navigation, search Logo: Tri Power Systems Inc Name Tri Power Systems Inc Address P.O. Box 1450 Place Idaho Springs, Colorado Zip 80452 Sector Solar Product Design and installation of solar and wind systems for residential and small business Website http://www.tripowersystems.com Coordinates 39.6904464°, -105.6412527° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.6904464,"lon":-105.6412527,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

286

Naturalistic Decision Making for Power System Operators  

Science Conference Proceedings (OSTI)

Motivation – Investigations of large-scale outages in the North American interconnected electric system often attribute the causes to three T’s: Trees, Training and Tools. To document and understand the mental processes used by expert operators when making critical decisions, a naturalistic decision making (NDM) model was developed. Transcripts of conversations were analyzed to reveal and assess NDM-based performance criteria. Findings/Design – An item analysis indicated that the operators’ Situation Awareness Levels, mental models, and mental simulations can be mapped at different points in the training scenario. This may identify improved training methods or analytical/ visualization tools. Originality/Value – This study applies for the first time, the concepts of Recognition Primed Decision Making, Situation Awareness Levels and Cognitive Task Analysis to training of electric power system operators. Take away message – The NDM approach provides a viable framework for systematic training management to accelerate learning in simulator-based training scenarios for power system operators and teams.

Greitzer, Frank L.; Podmore, Robin; Robinson, Marck; Ey, Pamela

2010-02-01T23:59:59.000Z

287

Remote-Controllable Power Outlet System for Home Power Management  

Science Conference Proceedings (OSTI)

In this paper we describe the Wireless Power-Controlled Outlet Module (WPCOM) with a scalable mechanism for home power management which we have developed. The WPCOM integrates the multiple AC power sockets and a simple low-power microcontroller into ...

Chia-Hung Lien; Ying-Wen Bai; Ming-Bo Lin

2007-11-01T23:59:59.000Z

288

Power system identification toolbox: Phase two progress  

Science Conference Proceedings (OSTI)

This report describes current progress on a project funded by the Bonneville Power Administration (BPA) to develop a set of state-of-the-art analysis software (termed the Power System Identification [PSI] Toolbox) for fitting dynamic models to measured data. The project is being conducted as a three-phase effort. The first phase, completed in late 1992, involved investigating the characteristics of the analysis techniques by evaluating existing software and developing guidelines for best use. Phase Two includes extending current software, developing new analysis algorithms and software, and demonstrating and developing applications. The final phase will focus on reorganizing the software into a modular collection of documented computer programs and developing user manuals with instruction and application guidelines. Phase Two is approximately 50% complete; progress to date and a vision for the final product of the PSI Toolbox are described. The needs of the power industry for specialized system identification methods are particularly acute. The industry is currently pushing to operate transmission systems much closer to theoretical limits by using real-time, large-scale control systems to dictate power flows and maintain dynamic stability. Reliably maintaining stability requires extensive system-dynamic modeling and analysis capability, including measurement-based methods. To serve this need, the BPA has developed specialized system-identification computer codes through in-house efforts and university contract research over the last several years. To make full integrated use of the codes, as well as other techniques, the BPA has commissioned Pacific Northwest Laboratory (PNL) to further develop the codes and techniques into the PSI Toolbox.

Trudnowski, D.J.

1994-08-01T23:59:59.000Z

289

HEMP emergency planning and operating procedures for electric power systems. Power Systems Technology Program  

SciTech Connect

Investigations of the impact of high-altitude electromagnetic pulse (HEMP) on electric power systems and electrical equipment have revealed that HEMP creates both misoperation and failures. These events result from both the early time E{sub 1} (steep-front pulse) component and the late time E{sub 3} (geomagnetic perturbations) component of HEMP. In this report a HEMP event is viewed in terms of its marginal impact over classical power system disturbances by considering the unique properties and consequences of HEMP. This report focuses on system-wide electrical component failures and their potential consequences from HEMP. In particular, the effectiveness of planning and operating procedures for electric systems is evaluated while under the influence of HEMP. This assessment relies on published data and characterizes utilities using the North American Electric Reliability Council`s regions and guidelines to model electric power system planning and operations. Key issues addressed by the report include how electric power systems are affected by HEMP and what actions electric utilities can initiate to reduce the consequences of HEMP. The report also reviews the salient features of earlier HEMP studies and projects, examines technology trends in the electric power industry which are affected by HEMP, characterizes the vulnerability of power systems to HEMP, and explores the capability of electric systems to recover from a HEMP event.

Reddoch, T.W.; Markel, L.C. [Electrotek Concepts, Inc., Knoxville, TN (United States)

1991-12-31T23:59:59.000Z

290

Nuclear power systems for Lunar and Mars exploration  

SciTech Connect

Initial studies of a variety of mission scenarios for the new Space Exploration Initiative, and the technologies necessary to enable or significantly enhance them, have identified the development of advanced space power systems - whether solar, chemical or nuclear - to be of prime importance. Lightweight, compact, reliable power systems for planetary rovers and a variety of surface vehicles, utility surface power, and power for advanced propulsion systems were identified as critical needs for these missions. This paper discusses these mission scenarios, the concomitant power system requirements; the power system options considered and identifies the significant potential benefits of nuclear power for meeting the power needs of the above applications.

Sovie, R.J.; Bozek, J.M.

1994-09-01T23:59:59.000Z

291

System aspects of a Space Nuclear Reactor Power System  

Science Conference Proceedings (OSTI)

Selected systems aspects of a 300 kW nuclear reactor power system for spacecraft have been studied. The approach included examination of two candidate missions and their associated spacecraft, and a number of special topics dealing with the power system design and operation. The missions considered were a reusable orbital transfer vehicle and a space-based radar. The special topics included: power system configuration and scaling, launch vehicle integration, operating altitude, orbital storage, start-up, thawing, control, load following, procedures in case of malfunction, restart, thermal and nuclear radiation to other portions of the spacecraft, thermal stresses between subsystems, boom and cable designs, vibration modes, altitude control, reliability, and survivability. Among the findings are that the stowed length of the power system is important to mission design and that orbital storage for months to years may be needed for missions involving orbital assembly. The power system design evolved during the study and has continued to evolve; the current design differs somewhat from that examined in this paper.

Jaffe, L.; Fujita, T.; Beatty, R.; Bhandari, P.; Chow, E.; Deininger, W.; Ewell, R.; Grossman, M.; Kia, T.; Nesmith, B.

1988-01-01T23:59:59.000Z

292

Test report : Princeton power systems prototype energy storage system.  

SciTech Connect

The Department of Energy Office of Electricity (DOE/OE), Sandia National Laboratory (SNL) and the Base Camp Integration Lab (BCIL) partnered together to incorporate an energy storage system into a microgrid configured Forward Operating Base to reduce the fossil fuel consumption and to ultimately save lives. Energy storage vendors will be sending their systems to SNL Energy Storage Test Pad (ESTP) for functional testing and then to the BCIL for performance evaluation. The technologies that will be tested are electro-chemical energy storage systems comprised of lead acid, lithium-ion or zinc-bromide. Princeton Power Systems has developed an energy storage system that utilizes lithium ion phosphate batteries to save fuel on a military microgrid. This report contains the testing results and some limited analysis of performance of the Princeton Power Systems Prototype Energy Storage System.

Rose, David Martin; Schenkman, Benjamin L.; Borneo, Daniel R.

2013-08-01T23:59:59.000Z

293

Dual power, constant speed electric motor system  

DOE Patents (OSTI)

A dual capacity permanent split capacitor electric motor system is provided with a stator having main and auxiliary windings. The main stator winding includes two winding sections which are connected in parallel with each other and across a pair of line terminals while the auxiliary winding is connected in series with a capacitor to form a circuit branch which is connected between the line terminals for operation at a first output power level. Switching means are provided to reconnect the main stator winding sections in series with each other and in series with a second capacitor to form a circuit branch which is connected between the line terminals while the stator auxiliary winding is connected directly between the line terminals for operation at a second output power level. Automatic rotation reversal occurs when the motor switches from the first to the second output power level.

Kirschbaum, Herbert S. (Asheville, NC)

1984-01-01T23:59:59.000Z

294

Power System Monitoring Using Petri Net Embeddings  

E-Print Network (OSTI)

A failure in a power transmission line causes a number of circuit breakers to activate in an eort to isolate the failure and prevent it from corrupting the rest of the power system. Based on information from these physically distributed protective devices, a central controller needs to quickly identify and locate the failure. The task becomes challenging due to the complexity of modern power transmission networks and due to the possibility of multiple sensor failures or incorrect operation of protective devices. In this paper we investigate a solution to this problem using Petri net models. Our approach is attractive because it allows concurrent/incremental processing of the information that arrives at the controller and because it requires only simple calculations (linear checks) during execution time. Most reasoning is implicitly performed at design time, which gives our method an important edge for real-time monitoring. Furthermore, these same techniques can potentially handle mult...

C. N. Hadjicostis; G. C. Verghese

2000-01-01T23:59:59.000Z

295

STATUS OF THE NIF POWER CONDITIONING SYSTEM  

DOE Green Energy (OSTI)

The NIF Power Conditioning System provides the pulsed excitation required to drive flashlamps in the laser's optical amplifiers. Modular in design, each of the 192 Main Energy Storage Modules (MESMs) storage up to 2.2 MJ of electrical energy in its capacitor bank before delivering the energy to 20 pairs of flashlamps in a 400 {micro}s pulse (10% power points). The peak current of each MESM discharge is 0.5 MA. Production, installation, commissioning and operation of the NIF Power Conditioning continue to progress rapidly, with the goals of completing accelerated production in late 2007 and finishing commissioning by early 2008, all the while maintaining an aggressive operations schedule. To date, more than 80% of the required modules have been assembled, shipped and installed in the facility, representing more that 240 MJ of stored energy available for driving NIF flashlamps. The MESMs have displayed outstanding reliability during daily, multiple-shift operations.

Arnold, P; Hulsey, S; Ullery, G; Petersen, D; Pendleton, D; Ollis, C; Newton, M

2007-07-26T23:59:59.000Z

296

Dual power, constant speed electric motor system  

DOE Patents (OSTI)

A dual capacity permanent split capacitor electric motor system is provided with a stator having main and auxiliary windings. The main stator winding includes two winding sections which are connected in parallel with each other and across a pair of line terminals while the auxiliary winding is connected in series with a capacitor to form a circuit branch which is connected between the line terminals for operation at a first output power level. Switching means are provided to reconnect the main stator winding sections in series with each other and in series with a second capacitor to form a circuit branch which is connected between the line terminals while the stator auxiliary winding is connected directly between the line terminals for operation at a second output power level. Automatic rotation reversal occurs when the motor switches from the first to the second output power level. 6 figs.

Kirschbaum, H.S.

1984-07-31T23:59:59.000Z

297

Proton Power Systems Plc | Open Energy Information  

Open Energy Info (EERE)

Proton Power Systems Plc Proton Power Systems Plc Jump to: navigation, search Name Proton Power Systems Plc Place Starnberg, Bavaria, Germany Zip D-82319 Sector Hydro, Hydrogen Product UK-based parent company of Proton Motor GmbH, which operates in Germany. The Company is engaged in developing hydrogen fuel cells and fuel cell hybrid systems. Coordinates 47.99959°, 11.342172° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":47.99959,"lon":11.342172,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

298

Advanced Supercritical Carbon Dioxide Power Cycle Configurations for Use in Concentrating Solar Power Systems: Preprint  

DOE Green Energy (OSTI)

The research will characterize and evaluate advanced S-CO2 Brayton cycle power generation with a modular power tower CSP system.

Ma, Z.; Turchi, C. S.

2011-03-01T23:59:59.000Z

299

Impact of Wind Power Plants on Voltage and Transient Stability of Power Systems  

SciTech Connect

A standard three-machine, nine-bus wind power system is studied and augmented by a radially connected wind power plant that contains 22 wind turbine generators.

Muljadi, E.; Nguyen, Tony B.; Pai, M. A.

2008-09-30T23:59:59.000Z

300

Wind energy and power system interconnection, control, and operation for high penetration of wind power .  

E-Print Network (OSTI)

??High penetration of wind energy requires innovations in different areas of power engineering. Methods for improving wind energy and power system interconnection, control, and operation… (more)

Liang, Jiaqi

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Independent System Operators and Biomass Power  

DOE Green Energy (OSTI)

Since the Federal Energy Regulatory Commission issued its landmark open access transmission rule in 1996, the idea of creating and establishing independent system operators (ISOs) has gained momentum. ISOs may help combine individual utility transmission systems into more regional transmission networks, which ultimately will allow biomass companies to transmit power over longer distances while paying a single transmission rate. To the extent that ISOs are combined or operated with power exchanges, however, biomass companies will likely face even more competitive market pressures. Few operators have experience with ISOs and power exchanges, but preliminary results show that short-term electricity market prices are probably too low for most biomass companies to compete against. Without policy measures, biomass companies may have to pursue strategic opportunities with short-term, spot-market sales; direct bilateral sales to customers; alternative power exchanges; and perhaps a ''green'' pow er market and sales to ancillary service markets. In addition, prices will likely be more volatile in a restructured market so biomass generators should be selling during those times.

Porter, K. L.

1999-03-25T23:59:59.000Z

302

NETL: Coal & Power Systems - Contacts  

NLE Websites -- All DOE Office Websites (Extended Search)

& Power Systems & Power Systems RD&D Clean Coal Program Vision An energy-secure United States that can tap the full potential of all its energy resources, including coal. Mission Ensure the availability of ultra-clean (near-zero emissions), abundant, low cost domestic energy from coal to fuel economic prosperity, strengthen energy security, and enhance environmental quality. NETL manages an RD&D portfolio that is designed to remove environmental concerns over the future use of coal by developing revolutionary, near-zero-emissions coal technology. In partnership with the private sector, technology developments are focused on maximizing efficiency and environmental performance while driving down the cost for these new technologies. RD&D efforts focus on near-term developments to enhance the capabilities of

303

Rough neural fault classification for hvdc power systems  

Science Conference Proceedings (OSTI)

This Ph.D. thesis proposes an approach to classify faults that commonly occur in a High Voltage Direct Current (HVDC) power system. These faults are distributed throughout the entire HVDC system. The most recently published techniques for power system ...

Liting Han

2008-01-01T23:59:59.000Z

304

Dish/Engine Systems for Concentrating Solar Power | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DishEngine Systems for Concentrating Solar Power DishEngine Systems for Concentrating Solar Power August 20, 2013 - 5:02pm Addthis The dishengine system is a concentrating solar...

305

Modelling and stability analysis of aircraft power systems.  

E-Print Network (OSTI)

??The more-electric aircraft concept is a major trend in aircraft electrical power system engineering and results in an increase in electrical loads based on power… (more)

Areerak, Kongpan

2009-01-01T23:59:59.000Z

306

Comments by the American Electric Power System on Proposed Coordinatio...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Comments by the American Electric Power System on Proposed Coordination of Federal Authorizations for Electric Transmission Facilities Comments by the American Electric Power...

307

Power Electronic Thermal System Performance and Integration (Presentation)  

DOE Green Energy (OSTI)

Thermal control is a critical factor in power electronics equipment. NREL aims to integrate and improve thermal system performance in power electronics.

Bennion, K.

2007-11-08T23:59:59.000Z

308

Power Systems Development Facility: Test Results 2007  

Science Conference Proceedings (OSTI)

The U.S. Department of Energy (DOE) established the Power Systems Development Facility (PSDF) to fulfill two major objectives. The first was to develop a gasifier able to process low-rank fuels more efficiently and cost-effectively than currently available designs. This work resulted in the Transport Gasifier for which two commercial projects have been announced. The second objective was to develop high-temperature, high-pressure (HTHP) filtration to facilitate high-temperature syngas cleanup and, thereb...

2007-12-19T23:59:59.000Z

309

Transfer function identification in power system applications  

Science Conference Proceedings (OSTI)

This paper presents an introduction to concepts and applications of transfer function identification in power systems. The paper begins with a brief introduction to transfer function identification methods using least-squares approaches and then discusses applications which include SVC's, model validation applications, and software validation. A comparison is also made between eigenvalues obtained from transfer function identification and small signal analysis. Methods for testing the validity of identified transfer functions are also discussed.

Smith, J.R.; Fatehi, F.; Woods, C.S. (Montana State Univ., Bozeman, MT (United States)); Hauer, J.F. (Bonneville Power Administration, Portland, OR (United States)); Trudnowski, D.J. (Battelle Pacific Northwest Labs., Richland, WA (United States))

1993-08-01T23:59:59.000Z

310

Power Systems Development Facility: Test Results 2008  

Science Conference Proceedings (OSTI)

The United States Department of Energy (US DOE) established the Power Systems Development Facility (PSDF) to fulfill two major objectives. The first was to develop a gasifier able to process low-rank fuels more efficiently and cost-effectively than currently available designs. This work resulted in the Transport Gasifier for which two commercial projects have been announced. The second objective was to develop high-temperature, high-pressure (HTHP) filtration to facilitate high-temperature syngas cleanup...

2008-12-23T23:59:59.000Z

311

Quality assurance program for isotopic power systems  

DOE Green Energy (OSTI)

This report summarizes the Sandia National Laboratories Quality Assurance Program that applies to non-weapon (reimbursable) Radioisotopic Thermoelectric Generators. The program has been implemented over the past 16 years on power supplies used in various space and terrestrial systems. The quality assurance (QA) activity of the program is in support of the Department of Energy, Office of Space Nuclear Projects. Basic elements of the program are described in the report and examples of program decumentation are presented.

Hannigan, R.L.; Harnar, R.R.

1982-12-01T23:59:59.000Z

312

Wind to Power Systems | Open Energy Information  

Open Energy Info (EERE)

Wind to Power Systems Wind to Power Systems Place Madrid, Spain Zip 28108 Sector Wind energy Product Wind to Power Systems designs, supplies and installs a device designed for use in wind turbines to provide fault ride-through capability, enabling wind turbines to maintain grid connection during periods of transmission line faults and voltage dips. Coordinates 40.4203°, -3.705774° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.4203,"lon":-3.705774,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

313

Proe Power Systems | Open Energy Information  

Open Energy Info (EERE)

Proe Power Systems Proe Power Systems Jump to: navigation, search Name Proe Power Systems Address 5072 Morning Song Dr Place Medina, Ohio Zip 44256-6747 Sector Biofuels, Biomass, Carbon, Renewable Energy Product Research and development;Retail product sales and distribution Phone number 800-315-0084 Website http://www.proepowersystems.co Coordinates 41.18062°, -81.8691039° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.18062,"lon":-81.8691039,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

314

IPS- Industrial Power Systems | Open Energy Information  

Open Energy Info (EERE)

IPS- Industrial Power Systems IPS- Industrial Power Systems Jump to: navigation, search Name IPS- Industrial Power Systems Address 1650 Indianwood Circle Place Maumee, Ohio Zip 43537 Sector Biofuels, Biomass, Buildings, Carbon, Efficiency, Hydro, Solar, Vehicles, Wind energy Product Engineering/architectural/design;Installation; Maintenance and repair; Other:Construction Phone number 419-531-3121 Website http://www.IPSContractor.com Coordinates 41.5867081°, -83.6797736° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.5867081,"lon":-83.6797736,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

315

MSE Power Systems Inc | Open Energy Information  

Open Energy Info (EERE)

MSE Power Systems Inc MSE Power Systems Inc Jump to: navigation, search Name MSE Power Systems Inc Place Albany, New York Zip NY 12205 Sector Services Product Albany-based privately held company active in engineering, procurement, construction management, commissioning and testing services. The firm offers these services to clean energy projects. Coordinates 42.707237°, -89.436378° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.707237,"lon":-89.436378,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

316

Energy Basics: Power Tower Systems for Concentrating Solar Power  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Energy Basics Renewable Energy Printable Version Share this resource Biomass Geothermal Hydrogen Hydropower Ocean Solar Photovoltaics Concentrating Solar Power Linear...

317

SunPower Corporation Systems formerly PowerLight | Open Energy Information  

Open Energy Info (EERE)

Corporation Systems formerly PowerLight Corporation Systems formerly PowerLight Jump to: navigation, search Name SunPower Corporation, Systems (formerly PowerLight) Place Berkeley, California Zip 94702 Sector Efficiency, Services, Solar Product US-based designer, manufacturer and installer of grid-connected solar electric systems and energy efficiency services, including solar tracking devices, in the US. References SunPower Corporation, Systems (formerly PowerLight)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. SunPower Corporation, Systems (formerly PowerLight) is a company located in Berkeley, California . References ↑ "SunPower Corporation, Systems (formerly PowerLight)" Retrieved from

318

Distributed Power Electronics for PV Systems (Presentation)  

DOE Green Energy (OSTI)

An overview of the benefits and applications of microinverters and DC power optimizers in residential systems. Some conclusions from this report are: (1) The impact of shade is greater than just the area of shade; (2) Additional mismatch losses include panel orientation, panel distribution, inverter voltage window, soiling; (3) Per-module devices can help increase performance, 4-12% or more depending on the system; (4) Value-added benefits (safety, monitoring, reduced design constraints) are helping their adoption; and (5) The residential market is growing rapidly. Efficiency increases, cost reductions are improving market acceptance. Panel integration will further reduce price and installation cost. Reliability remains an unknown.

Deline, C.

2011-12-01T23:59:59.000Z

319

VirtualPower: Coordinated Power Management in Virtualized Enterprise Systems  

E-Print Network (OSTI)

are nor- malized by the rate that requires the highest (i.e., 3.2GHz) power state on our Pentium 4 machine of the hardware power states for which their policies are de- signed. The resulting technical challenge is to appropri- ately map VM-level updates made to soft power states to actual changes in the states

Yang, Junfeng

320

Methodology for the comparative assessment of the Satellite Power System (SPS) and alternative technologies  

DOE Green Energy (OSTI)

A description of the initial methodology for the Comparative Assessment of the Satellite Power System Concept Development and Evaluation Program of NASA and DOE is presented. Included are study objectives, issue identification, units of measurement, methods, and data bases. The energy systems concerned are the satellite power system, several coal technologies, geothermal energy, fission, fusion, terrestrial solar systems, and ocean thermal energy conversion. Guidelines are suggested for the characterization of these systems, side-by-side analysis, alternative futures analysis, and integration and aggregation of data. The bulk of this report is a description of the methods for assessing the technical, economic, environmental, societal, and institutional issues surrounding the development of the selected energy technologies.

Wolsko, T.; Buehring, W.; Cirillo, R.; Gasper, J.; Habegger, L.; Hub, K.; Newsom, D.; Samsa, M.; Stenehjem, E.; Whitfield, R.

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Catalog of DC Appliances and Power Systems  

E-Print Network (OSTI)

Audio with Standby/Low Power Mode VCRs with Standby/Low Power Mode ..conversion efficiency for computers with standby/low power

Garbesi, Karina

2012-01-01T23:59:59.000Z

322

Weld Overlay Material Options for Power Systems  

Science Conference Proceedings (OSTI)

The primary applications are for coal fired power plants, but nuclear power .... for Extending Plant Lives in Power Generation, Refinery & Petrochemical, and ...

323

Specification for Brayton Isotope Power System (BIPS) electrical output power characteristics  

SciTech Connect

The specification defines the Brayton Isotope Power System (BIPS) standards and characteristics for electrical power generation required to be maintained at utilizing equipments power-input terminals during generation and distribution.

Post, P

1976-06-20T23:59:59.000Z

324

MAximum Multicore POwer (MAMPO): an automatic multithreaded synthetic power virus generation framework for multicore systems  

Science Conference Proceedings (OSTI)

The practically attainable worst case power consumption for a computer system is a significant design parameter and it is a very tedious process to determine it by manually writing high power consuming code snippets called power viruses. Previous research ...

Karthik Ganesan; Lizy K. John

2011-11-01T23:59:59.000Z

325

System-level max power (SYMPO): a systematic approach for escalating system-level power consumption using synthetic benchmarks  

Science Conference Proceedings (OSTI)

To effectively design a computer system for the worst case power consumption scenario, system architects often use hand-crafted maximum power consuming benchmarks at the assembly language level. These stressmarks, also called power viruses, are very ... Keywords: synthetic benchmark, system-level power virus, thermal design point

Karthik Ganesan; Jungho Jo; W. Lloyd Bircher; Dimitris Kaseridis; Zhibin Yu; Lizy K. John

2010-09-01T23:59:59.000Z

326

WIND ENERGY POWER CONVERSION SYSTEM REDUCING GEARBOX STRESS ...  

A wind energy power conversion system includes a gearbox, a generator, an AC to DC power converter, a DC link, and a DC to AC power converter, and at least one ...

327

Excise Tax Exemption for Solar- or Wind-Powered Systems  

Energy.gov (U.S. Department of Energy (DOE))

Massachusetts law exempts any "solar or wind powered climatic control unit and any solar or wind powered water heating unit or any other type unit or system powered thereby," that qualifies for the...

328

NREL: TroughNet - Parabolic Trough Power Plant System Technology  

NLE Websites -- All DOE Office Websites (Extended Search)

Parabolic Trough Power Plant System Technology Parabolic Trough Power Plant System Technology A parabolic trough solar power plant uses a large field of collectors to supply thermal energy to a conventional power plant. Because they use conventional power cycles, parabolic trough power plants can be hybridized-other fuels can be used to back up the solar power. Like all power cycles, trough power plants also need a cooling system to transfer waste heat to the environment. Parabolic trough power plant technologies include: Direct steam generation Fossil-fired (hybrid) backup Operation and maintenance Power cycles Steam Rankine Organic Rankine Combined Wet and dry cooling Power Cycles A photo of an aerial view of a power plant in the middle of a solar field with rows and rows of parabolic troughs tracking. The cooling towers can be seen with the water plume rising into the air. The white water tanks can be seen in the background.

329

The Power Systems Development Facility -- Current status  

Science Conference Proceedings (OSTI)

Southern Company Services, Inc. (SCS) has entered into a cooperative agreement with the US Department of Energy (DOE) to build and operate the Power Systems Development Facility (PSDF), currently under construction in Wilsonville, Alabama, 40 miles southeast of Birmingham. The objectives of the PSDF are to develop advanced coal-fired power generation technologies through testing and evaluation of hot gas cleanup systems and other major components at the pilot scale. The performance of components will be assessed and demonstrated in an integrated mode of operation and at a component size readily scaleable to commercial systems. The facility will initially contain five modules: (1) a transport reactor gasifier and combustor, (2) an advanced pressurized fluidized-bed combustion (APFBC) system, (3) a particulate control module, (4) an advanced burner-gas turbine module, and (5) a fuel cell. The five modules will initially be configured into two separate test trains, the transport reactor train (2 tons/hour of coal feed) and the APFBC train (3 tons/hour of coal feed). In addition to a project description, the project design and construction status, preparations for operations, and project test plans are reported in this paper.

Pinkston, T.E.; Maxwell, J.D.; Leonard, R.F.; Vimalchand, P.

1995-11-01T23:59:59.000Z

330

Low-Power Design for Real-Time Systems  

Science Conference Proceedings (OSTI)

Real-time Systems often are located in the special environments where the power consumption is a big concern. Upon presence of timing constraints, the low power design on the real-time systems has significant impact on the performance as well as the ... Keywords: embedded system, instruction set, low power design, real time operating system, real time scheduling

Sheng-Tzong Cheng; Chia-Mei Chen; Jing-Wen Hwang

1998-09-01T23:59:59.000Z

331

Multi-Area Power System Reliability and Production Costing  

Science Conference Proceedings (OSTI)

Multi-area power system operation can reduce costs without jeopardizing service reliability, but the interconnection of systems requires new means for estimating costs and reliability. This report describes methods for evaluating production costs and power system reliability in multi-area power systems.

1990-08-28T23:59:59.000Z

332

An intelligent power system stabilizer based hybrid fuzzy learning algorithm  

Science Conference Proceedings (OSTI)

This work aims to develop two adaptive fuzzy control techniques applied on excitation control system for turbo- Alternators, to simulate an Automatic Voltage Regulator and Power Systems Stabilizer (AVR-PSS) in transient stability power system analysis: ... Keywords: ANFIS, AVR - PSS, PID control, fuzzy controller, hybrid learning algorithm, power system stability and robustness, turbo-alternators and excitation

Abdellatif Naceri; Ahmed Massoum; Mohamed Abid

2011-09-01T23:59:59.000Z

333

Fuel processor for fuel cell power system  

DOE Patents (OSTI)

A catalytic organic fuel processing apparatus, which can be used in a fuel cell power system, contains within a housing a catalyst chamber, a variable speed fan, and a combustion chamber. Vaporized organic fuel is circulated by the fan past the combustion chamber with which it is in indirect heat exchange relationship. The heated vaporized organic fuel enters a catalyst bed where it is converted into a desired product such as hydrogen needed to power the fuel cell. During periods of high demand, air is injected upstream of the combustion chamber and organic fuel injection means to burn with some of the organic fuel on the outside of the combustion chamber, and thus be in direct heat exchange relation with the organic fuel going into the catalyst bed.

Vanderborgh, Nicholas E. (Los Alamos, NM); Springer, Thomas E. (Los Alamos, NM); Huff, James R. (Los Alamos, NM)

1987-01-01T23:59:59.000Z

334

Power Systems Life Cycle Analysis Tool (Power L-CAT).  

SciTech Connect

The Power Systems L-CAT is a high-level dynamic model that calculates levelized production costs and tracks environmental performance for a range of electricity generation technologies: natural gas combined cycle (using either imported (LNGCC) or domestic natural gas (NGCC)), integrated gasification combined cycle (IGCC), supercritical pulverized coal (SCPC), existing pulverized coal (EXPC), nuclear, and wind. All of the fossil fuel technologies also include an option for including carbon capture and sequestration technologies (CCS). The model allows for quick sensitivity analysis on key technical and financial assumptions, such as: capital, O&M, and fuel costs; interest rates; construction time; heat rates; taxes; depreciation; and capacity factors. The fossil fuel options are based on detailed life cycle analysis reports conducted by the National Energy Technology Laboratory (NETL). For each of these technologies, NETL's detailed LCAs include consideration of five stages associated with energy production: raw material acquisition (RMA), raw material transport (RMT), energy conversion facility (ECF), product transportation and distribution (PT&D), and end user electricity consumption. The goal of the NETL studies is to compare existing and future fossil fuel technology options using a cradle-to-grave analysis. The NETL reports consider constant dollar levelized cost of delivered electricity, total plant costs, greenhouse gas emissions, criteria air pollutants, mercury (Hg) and ammonia (NH3) emissions, water withdrawal and consumption, and land use (acreage).

Andruski, Joel; Drennen, Thomas E.

2011-01-01T23:59:59.000Z

335

Power Systems Life Cycle Analysis Tool (Power L-CAT).  

SciTech Connect

The Power Systems L-CAT is a high-level dynamic model that calculates levelized production costs and tracks environmental performance for a range of electricity generation technologies: natural gas combined cycle (using either imported (LNGCC) or domestic natural gas (NGCC)), integrated gasification combined cycle (IGCC), supercritical pulverized coal (SCPC), existing pulverized coal (EXPC), nuclear, and wind. All of the fossil fuel technologies also include an option for including carbon capture and sequestration technologies (CCS). The model allows for quick sensitivity analysis on key technical and financial assumptions, such as: capital, O&M, and fuel costs; interest rates; construction time; heat rates; taxes; depreciation; and capacity factors. The fossil fuel options are based on detailed life cycle analysis reports conducted by the National Energy Technology Laboratory (NETL). For each of these technologies, NETL's detailed LCAs include consideration of five stages associated with energy production: raw material acquisition (RMA), raw material transport (RMT), energy conversion facility (ECF), product transportation and distribution (PT&D), and end user electricity consumption. The goal of the NETL studies is to compare existing and future fossil fuel technology options using a cradle-to-grave analysis. The NETL reports consider constant dollar levelized cost of delivered electricity, total plant costs, greenhouse gas emissions, criteria air pollutants, mercury (Hg) and ammonia (NH3) emissions, water withdrawal and consumption, and land use (acreage).

Andruski, Joel; Drennen, Thomas E.

2011-01-01T23:59:59.000Z

336

Fuzzy system approach to power purchases in a power pool of a deregulated power system  

Science Conference Proceedings (OSTI)

Fuzzy Logic is known for its applicability in modelling uncertainty and has been applied extensively to model various types of uncertainty in engineering sector. The main objective of this paper is to present a fuzzy approach to power purchases in a ...

Ajoy Kumar Chakraborty; Tulika Bhattacharjee

2012-07-01T23:59:59.000Z

337

Electromagnetic pulse research on electric power systems: Program summary and recommendations. Power Systems Technology Program  

Science Conference Proceedings (OSTI)

A single nuclear detonation several hundred kilometers above the central United States will subject much of the nation to a high-altitude electromagnetic pulse (BENT). This pulse consists of an intense steep-front, short-duration transient electromagnetic field, followed by a geomagnetic disturbance with tens of seconds duration. This latter environment is referred to as the magnetohydrodynamic electromagnetic pulse (NMENT). Both the early-time transient and the geomagnetic disturbance could impact the operation of the nation`s power systems. Since 1983, the US Department of Energy has been actively pursuing a research program to assess the potential impacts of one or more BENT events on the nation`s electric energy supply. This report summarizes the results of that program and provides recommendations for enhancing power system reliability under HENT conditions. A nominal HENP environment suitable for assessing geographically large systems was developed during the program and is briefly described in this report. This environment was used to provide a realistic indication of BEMP impacts on electric power systems. It was found that a single high-altitude burst, which could significantly disturb the geomagnetic field, may cause the interconnected power network to break up into utility islands with massive power failures in some areas. However, permanent damage would be isolated, and restoration should be possible within a few hours. Multiple bursts would likely increase the blackout areas, component failures, and restoration time. However, a long-term blackout of many months is unlikely because major power system components, such as transformers, are not likely to be damaged by the nominal HEND environment. Moreover, power system reliability, under both HENT and normal operating conditions, can be enhanced by simple, and often low cost, modifications to current utility practices.

Barnes, P.R.; McConnell, B.W.; Van Dyke, J.W. [Oak Ridge National Lab., TN (United States); Tesche, F.M. [Tesche (F.M.), Dallas, TX (United States); Vance, E.F. [Vance (E.F.), Fort Worth, TX (United States)

1993-01-01T23:59:59.000Z

338

Study on Relay Protection Coordination in Complex Auxiliary Power System  

Science Conference Proceedings (OSTI)

In many large-scale power plants, the structure of its auxiliary power system are complex, and the coordination of its relay protections is difficult. The Three Gorges Hydropower Plant is the largest installed capacity of power plants with complex auxiliary ... Keywords: auxiliary power system, relay protection, coordination

Yawen Yi; Jun Xie; Na Yi

2010-06-01T23:59:59.000Z

339

Event-Driven Power Management of Portable Systems  

E-Print Network (OSTI)

in modeling real- life systems where transition times between power states are not geometrically distributed. State transitions are controlled by commands issued by a power manager (PM) that observes the workload of the system and decides the when and how to force power state transitions. We call power management policy

Simunic, Tajana

340

Wind for Schools Project Power System Brief, Wind Powering America Fact Sheet Series  

Wind Powering America (EERE)

Powering America Fact Sheet Series Powering America Fact Sheet Series Energy Efficiency & Renewable Energy Wind for Schools Project Power System Brief Wind for Schools Project Power System Brief Wind for Schools Project Power System Brief This fact sheet provides an overview of the system components of a Wind Powering America Wind for Schools project. Wind Powering America's (WPA's) Wind for Schools project uses a basic system configuration for each school project. The system incorporates a single SkyStream(tm) wind turbine, a 70-ft guyed tower, disconnect boxes at the base of the turbine and at the school, and an interconnection to the school's electrical system. A detailed description of each system component is provided in this document. The local power cooperative or utility should be an integral part of

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Improved Refractories for IGCC Power Systems  

DOE Green Energy (OSTI)

The gasification of coal, petroleum residuals, and biomass provides the opportunity to produce energy more efficiently, and with significantly less environmental impact, than more-conventional combustion-based processes. In addition, the synthesis gas that is the product of the gasification process offers the gasifier operator the option of ''polygeneration'', i.e., the production of alternative products instead of power should it be economically favorable to do so. Because of these advantages, gasification is a key element in the U.S. Department of Energy?s Vision 21 power system. However, issues with both the reliability and the economics of gasifier operation will have to be resolved before gasification will be widely adopted by the power industry. Central to both increased reliability and economics is the development of materials with longer service lives in gasifier systems that can provide extended periods of continuous gasifier operation. The focus of the Advanced Refractories for Gasification project at the Albany Research Center is to develop improved materials capable of withstanding the harsh, high-temperature environment created by the gasification reaction, and includes both the refractory lining that insulates the slagging gasifier, as well as the thermocouple assemblies that are utilized to monitor gasifier operating temperatures. Current generation refractory liners in slagging gasifiers are typically replaced every 10 to 18 months, at costs ranging up to $2,000,000. Compounding materials and installation costs are the lost-opportunity costs for the three to four weeks that the gasifier is off-line for the refractory exchange. Current generation thermocouple devices rarely survive the gasifier start-up process, leaving the operator with no real means of temperature measurement during gasifier operation. As a result, the goals of this project include the development of a refractory liner with a service life at least double that of current generation refractory materials, and the design of a thermocouple protection system that will allow accurate temperature monitoring for extended periods of time.

Dogan, Cynthia P.; Kwong, Kyei-Sing; Bennett, James P.; Chinn, Richard E.; Dahlin, Cheryl L.

2002-01-01T23:59:59.000Z

342

Power Systems Development Facility: Test Results 2006  

Science Conference Proceedings (OSTI)

The Transport Gasifier test facility at the Power Systems Development Facility (PSDF) has operated for almost 9,150 hours, gasifying bituminous and sub-bituminous coals and lignites using air and oxygen as the oxidant. During this time plant reliability and performance has improved progressively and the high degree of process understanding developed has been used to improve designs for key equipment items, such as coal feeding and coarse and fine ash removal. Using state-of-the-art data analysis and mode...

2006-12-11T23:59:59.000Z

343

Battery Park Industries Inc formerly Moltech Power Systems Inc | Open  

Open Energy Info (EERE)

Battery Park Industries Inc formerly Moltech Power Systems Inc Battery Park Industries Inc formerly Moltech Power Systems Inc Jump to: navigation, search Name Battery Park Industries Inc (formerly Moltech Power Systems, Inc) Place Gainesville, Florida Product Bundled rechargeable battery manufacturing assets of Moltech Power Systems, following that company's bankruptcy. References Battery Park Industries Inc (formerly Moltech Power Systems, Inc)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Battery Park Industries Inc (formerly Moltech Power Systems, Inc) is a company located in Gainesville, Florida . References ↑ "Battery Park Industries Inc (formerly Moltech Power Systems, Inc)" Retrieved from "http://en.openei.org/w/index.php?title=Battery_Park_Industries_Inc_formerly_Moltech_Power_Systems_Inc&oldid=342547"

344

Dynamic Performance Validation in the Western Power System  

Science Conference Proceedings (OSTI)

Information, in all its forms, is the key to the reliable and economic performance of large power systems. This paper describes the efforts underway to meet the dynamic information needs of the western power transmission system.

Hauer, John F.; Beshir, Mo; Mittelstadt, Bill

2000-09-30T23:59:59.000Z

345

Hydrogen storage of energy for small power supply systems  

E-Print Network (OSTI)

Power supply systems for cell phone base stations using hydrogen energy storage, fuel cells or hydrogen-burning generators, and a backup generator could offer an improvement over current power supply systems. Two categories ...

Monaghan, Rory F. D. (Rory Francis Desmond)

2005-01-01T23:59:59.000Z

346

Transient Stability Assessment of Power System with Large Amount of Wind Power Penetration: the  

E-Print Network (OSTI)

of HVDC connection to manage the imbalance at the system interconnections with the increased wind power. 2 is based on a 400 kV and 150 kV transmission system with HVDC connections to Nordel systems, Norway at the planned power exchange. Earlier studies in [4] and [5] have shown that the power exchange through the HVDC

Chen, Zhe

347

Study on Online Insulation Monitoring System for Working DC Power of Power Plants and Substations  

Science Conference Proceedings (OSTI)

The measurement of insulation resistance between DC power supply and ground is important in a DC operating power supply system. We proved a new model for measuring insulating resistance between ground and DC system. A lots of actual application shows ... Keywords: Insulation resistance, DC power system, Insulation monitor, Leakage current

Yunqing Liu; Xichao Wang

2010-06-01T23:59:59.000Z

348

Bulk Metallic Glasses XI  

Science Conference Proceedings (OSTI)

Jul 15, 2013 ... A Bulk Metallic Glass with Record-breaking Damage Tolerance ... Oxidation on the Surface Characteristics of Zr-based Bulk Metallic Glasses.

349

Hybrid power management system and method - Energy Innovation ...  

Solar Photovoltaic; Solar Thermal; Startup America; Vehicles and Fuels; ... Space power systems; Technology Status. Development Stage Availability Published Last Updated;

350

Environmental Degradation of Materials in Nuclear Power Systems ...  

Science Conference Proceedings (OSTI)

Environmental Degradation of Materials in Nuclear Power Systems—Water ... problems associated with spent fuel storage and radioactive waste disposal.

351

Distributed Robust Power System State Estimation  

E-Print Network (OSTI)

Deregulation of energy markets, penetration of renewables, advanced metering capabilities, and the urge for situational awareness, all call for system-wide power system state estimation (PSSE). Implementing a centralized estimator though is practically infeasible due to the complexity scale of an interconnection, the communication bottleneck in real-time monitoring, regional disclosure policies, and reliability issues. In this context, distributed PSSE methods are treated here under a unified and systematic framework. A novel algorithm is developed based on the alternating direction method of multipliers. It leverages existing PSSE solvers, respects privacy policies, exhibits low communication load, and its convergence to the centralized estimates is guaranteed even in the absence of local observability. Beyond the conventional least-squares based PSSE, the decentralized framework accommodates a robust state estimator. By exploiting interesting links to the compressive sampling advances, the latter jointly es...

Kekatos, Vassilis

2012-01-01T23:59:59.000Z

352

Advanced computational approaches for power system operations considering wind power and emission problem.  

E-Print Network (OSTI)

??[Truncated abstract] Nowadays, the electric power systems which are electrical and mechanical controlled systems play the fundamental role in the modern society. No one can… (more)

Yao, Fang

2011-01-01T23:59:59.000Z

353

Protection system design for power distribution systems in the presence of distributed generation.  

E-Print Network (OSTI)

??The increasing presence of distributed generation and the steady modernization of power distribution system equipment have presented new opportunities in power distribution system studies. This… (more)

Mao, Yiming

2005-01-01T23:59:59.000Z

354

Satellite power system (SPS) public acceptance  

SciTech Connect

The purpose of this report is to develop a preliminary perspective on the public acceptability of the Solar Satellite Power System (SPS) Program, and a means to monitor it. A literature review and informal contacts with interest groups likely to take a position on the program reveal a number of concerns (anti-SPS arguments), as well as potential benefits (pro-SPS arguments). The concerns expressed include: environmental issues (microwaves, high altitude air pollution from space launches, land use), the program's cost in dollars, energy and other resources; communications interference; military implications; ownership and control of the system (particularly strengthening the power of utility monopolies); SPS as representing a centralized, high technology hard energy policy (rather than a decentralized smaller-scale soft approach); and the fear that SPS might dominate solar R and D budgets at the expense of decentralized solar technologies. Pro-SPS arguments stress its efficiency compared to terrestrial solar applications (i.e. virtually continuous exposure, no atmospheric attenuation). The program could be a major contributor to solving America's (and the world's) long-term energy crisis. It would improve our balance of payments; create many jobs both directly and through technology spinoffs; advance the space program; strengthen the U.S. position as a world leader in high technology; provide a great boost to American national pride; and would be environmentally preferable to alternative power generation technologies (e.g. coal, nuclear). Several key issues in SPS acceptability are: the outcome (and credibility) of future research into program environmental and non-environmental impacts, and the comparison of SPS impacts with those of alternative energy options. Recommendations for future research are given.

Bachrach, A.

1978-10-01T23:59:59.000Z

355

Satellite power system (SPS) public outreach experiment  

DOE Green Energy (OSTI)

To improve the results of the Satellite Power System (SPS) Concept Development and Evaluation Program, an outreach experiment was conducted. Three public interest groups participated: the L-5 Society (L-5), Citizen's Energy Project (CEP), and the Forum for the Advancement of Students in Science and Technology (FASST). Each group disseminated summary information about SPS to approximately 3000 constituents with a request for feedback on the SPS concept. The objectives of the outreach were to (1) determine the areas of major concern relative to the SPS concept, and (2) gain experience with an outreach process for use in future public involvement. Due to the combined efforts of all three groups, 9200 individuals/organizations received information about the SPS concept. Over 1500 receipients of this information provided feedback. The response to the outreach effort was positive for all three groups, suggesting that the effort extended by the SPS Project Division to encourage an information exchange with the public was well received. The general response to the SPS differed with each group. The L-5 position is very much in favor of SPS; CEP is very much opposed and FASST is relatively neutral. The responses are analyzed, and from the responses some questions and answers about the satellite power system are presented in the appendix. (WHK)

McNeal, S.R.

1980-12-01T23:59:59.000Z

356

Title: “ENERGY MANAGEMENT OF MARINE ELECTRICAL POWER SYSTEMS – CONTROL OF INTEGRATED, AUTONOMOUS POWER SYSTEMS  

E-Print Network (OSTI)

Norpropeller. Electric propulsion will provide better vessel manouverability, system redundancy and higher flexibility with engine room arrangement, Ĺdnanes (2003). On vessels where there is a large variation in load demand reduced fuel consumption and optimal power/energy management may be regarded as advantages that are still not fully utilized. In that respect, the new equipment and modern control systems can provide new possibilities for improving present control strategies, performance, and utilization of the installation. It is also expected that an improved control system should provide overall higher level of safety and reliability. The present state of the art type of tools and methods for analyzing combined power systems does only to a limited extent utilize the possibilities for increased knowledge available in the more advanced models and methods developed and used within each of the machinery and electrical engineering disciplines. To be able to analyze increasingly more complex systems of interest, the ability to easily combine models and methods to develop more fundamental insight into the total systems behavior, its characteristics and limitations will be an advantage in design of new systems. According to that it is first necessary to design the power system simulation model which should include mathematical models of electrical and mechanical machinery components to the required level

unknown authors

2004-01-01T23:59:59.000Z

357

OE Power Systems Engineering Research & Development Program Partnerships |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Mission » Power Systems Engineering Research and Development » OE Mission » Power Systems Engineering Research and Development » OE Power Systems Engineering Research & Development Program Partnerships OE Power Systems Engineering Research & Development Program Partnerships The OE Power Systems Research and Development Program engages a broad group of stakeholders in program planning, identification of high-priority technology gap areas, and joint participation in research, development, demonstration, and deployment activities. The partnerships involve: Partnerships with Other Federal Programs Federal partnerships include participation with the Federal Energy Management Program (FEMP) to promote and install distributed energy systems at Federal facilities; the Office of Energy Assurance and the Department of

358

New achievements for Romanian engineering training in modelling power systems  

Science Conference Proceedings (OSTI)

The evolution of electric power system analysis methods followed the present technical problems and business needs of electric utilities in Romania, before EU integration. Present technical requirements and the current stage of power system analysis ... Keywords: computer applications, computer simulation, fourier analysis, modelling, power systems, training

Stefania Popadiuc; Frangiskos Topalis; Cristiana Geambasu

2006-09-01T23:59:59.000Z

359

New achievements for Romanian engineering training in modelling power systems  

Science Conference Proceedings (OSTI)

The evolution of electric power system analysis methods followed the present technical problems and business needs of electric utilities in Romania, before EU integration. Present technical requirements and the current stage of power system analysis ... Keywords: Fourier analysis, computer applications, computer simulation, modelling, power systems, training

Stefania Popadiuc; Frangiskos Topalis; Cristiana Geambasu

2007-05-01T23:59:59.000Z

360

International Rectifier Power Control Systems | Open Energy Information  

Open Energy Info (EERE)

Rectifier Power Control Systems Rectifier Power Control Systems Jump to: navigation, search Name International Rectifier Power Control Systems Place El Segundo, California Zip 90245 Product Originally a division of International Rectifier Corporation manufacturing semiconductor and module components for power management products. References International Rectifier Power Control Systems[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. International Rectifier Power Control Systems is a company located in El Segundo, California . References ↑ "International Rectifier Power Control Systems" Retrieved from "http://en.openei.org/w/index.php?title=International_Rectifier_Power_Control_Systems&oldid=347055"

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Essential Power Systems Workshop - OEM Perspective  

DOE Green Energy (OSTI)

In California, idling is largely done for climate control. This suggests that climate control devices alone could be used to reduce idling. Line-haul truck drivers surveyed require an average of 4-6 kW of power for a stereo, CB radio, light, refrigerator, and climate control found in the average truck. More power may likely be necessary for peak power demands. The amount of time line-haul trucks reported to have stopped is between 25 and 30 hours per week. It was not possible to accurately determine from the pilot survey the location, purpose, and duration of idling. Consulting driver logs or electronically monitoring trucks could yield more accurate data, including seasonal and geographic differences. Truck drivers were receptive to idling alternatives. Two-thirds of truck drivers surveyed support a program to reduce idling. Two-thirds of drivers reported they would purchase idling reduction technologies if the technology yielded a payback period of two years or less. Willingness to purchase auxiliary power units appears to be higher for owner-operators than for company drivers. With a 2-year payback period, 82% of owner- operators would be willing to buy an idle- reducing device, while 63% of company drivers thought their company would do the same. Contact with companies is necessary to discern whether this difference between owner- operators and companies is true or simply due to the perception of the company drivers. Truck stops appear to be a much more attractive option for electrification than rest areas by a 48% to 21% margin. Much of this discrepancy may be due to perceived safety problems with rest areas. This survey did not properly differentiate between using these areas for breaks or overnight. The next, full survey will quantify where the truck drivers are staying overnight, where they go for breaks, and the duration of time they spend at each place. The nationwide survey, which is in progress, will indicate how applicable the results are to the US in general. In addition to the survey, we believe data loggers and focus groups will be necessary to collect the idling duration and location data necessary to compare auxiliary power units to truck stop electrification. Focus groups are recommended to better understand the driver response to APUs and electrification. The appearance and perception of the new systems will need further clarification, which could be accomplished with a demonstration for truck drivers.

Bill Gouse

2001-12-12T23:59:59.000Z

362

Low Power Dynamic Scheduling for Computing Systems  

E-Print Network (OSTI)

This paper considers energy-aware control for a computing system with two states: "active" and "idle." In the active state, the controller chooses to perform a single task using one of multiple task processing modes. The controller then saves energy by choosing an amount of time for the system to be idle. These decisions affect processing time, energy expenditure, and an abstract attribute vector that can be used to model other criteria of interest (such as processing quality or distortion). The goal is to optimize time average system performance. Applications of this model include a smart phone that makes energy-efficient computation and transmission decisions, a computer that processes tasks subject to rate, quality, and power constraints, and a smart grid energy manager that allocates resources in reaction to a time varying energy price. The solution methodology of this paper uses the theory of optimization for renewal systems developed in our previous work. This paper is written in tutorial form and devel...

Neely, Michael J

2011-01-01T23:59:59.000Z

363

The Ranchero explosive pulsed power system  

SciTech Connect

The authors are currently developing a high explosive pulsed power system concept that they call Ranchero. Ranchero systems consist of series-parallel combinations of simultaneously initiated coaxial magnetic flux compression generators, and are intended to operate in the range from 50 MA to a few hundred MA currents. One example of a Ranchero system is shown here. The coaxial modules lend themselves to extracting the current output either from one end or along the generator midplane. They have previously published design considerations related to the different module configurations, and in this paper they concentrate on the system that they will use for their first imploding liner tests. A single module with end output. The module is 1.4-m long and expands the armature by a factor of two to reach the 30-cm OD stator. The first heavy liner implosion experiments will be conducted in the range of 40--50 MA currents. Electrical tests, to date, have employed high explosive (HE) charges 43-cm long. They have performed tests and related 1D MHD calculations at the 45-MA current level with small loads. From these results, they determine that they can deliver currents of approximately 50 MA to loads of 8 nH.

Goforth, J.H.; Atchison, W.L.; Bartram, D.E. [and others

1997-09-01T23:59:59.000Z

364

Symbolic Reduction for High-Speed Power System Simulation  

Science Conference Proceedings (OSTI)

High-speed simulations of power transmission systems, which often rely on solving nonlinear systems of equations, are an increasingly important tool for training, testing equipment, on-line control and situational awareness. Such simulations, however, ... Keywords: Code generation, power system simulation, real-time systems, sparse systems, symbolic and algebraic manipulation

William M. Siever; Daniel R. Tauritz; Ann Miller; Mariesa Crow; Bruce M. Mcmillin; Stanley Atcitty

2008-06-01T23:59:59.000Z

365

Hybrid Power System Simulation Model | Open Energy Information  

Open Energy Info (EERE)

Hybrid Power System Simulation Model Hybrid Power System Simulation Model Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Hybrid Power System Simulation Model Focus Area: Renewable Energy Topics: System & Application Design Website: www.umass.edu/windenergy/OLD_SITE/projects/hybrid2/ Equivalent URI: cleanenergysolutions.org/content/hybrid-power-system-simulation-model, Language: English Policies: Deployment Programs DeploymentPrograms: Technical Assistance This tool performs detailed long-term performance and economic analysis on a wide variety of hybrid power systems. It is a probabilistic/time-series computer model, using time-series data for loads, wind speed, solar insolation, temperature, and the power system designed or selected by the user, to predict the performance of the hybrid power system. An economic

366

Solar technology applications: a survey of solar powered irrigation systems  

DOE Green Energy (OSTI)

Published information on solar powered irrigation systems is presented. Thermal solar systems, thermoelectric solar systems, and photovoltaic solar systems are included. A bibliography and survey of on-going work is presented. (WHK)

Newkirk, H.W.

1978-04-17T23:59:59.000Z

367

Selective inductive powering system for paper computing  

Science Conference Proceedings (OSTI)

We present a method of selective wireless power transferring for paper computing. The novelty of this method lies in the power transmitter can be controlled to selectively activate different receivers in the context of wireless power transferring with ... Keywords: paper computing, selective wireless power

Kening Zhu; Hideaki Nii; Owen Noel Newton Fernando; Adrian David Cheok

2011-11-01T23:59:59.000Z

368

Energy Storage Systems 2007 Peer Review - Power Electronics Presentations |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Power Electronics Power Electronics Presentations Energy Storage Systems 2007 Peer Review - Power Electronics Presentations The U.S. DOE Energy Storage Systems Program (ESS) held an annual peer review on September 27, 2007 in San Francisco, CA. Eighteen presentations were divided into categories; those related to power electronics are below. Other presentation categories were: Economics - Benefit Studies and Environment Benefit Studies Utility & Commercial Applications of Advanced Energy Storage Systems International Energy Storage Programs Innovations in Energy Storage Systems ESS 2007 Peer Review - StatCom with Energy Storage to Smooth Intermittent Power Output of Wind Farms - Mesut Baran, NC State.pdf ESS 2007 Peer Review - Cyber-Physical Systems Distributed Control - Mariesa

369

Prefire identification for pulse power systems  

DOE Patents (OSTI)

Prefires in a high-power, high-frequency, multi-stage pulse generator are detected by a system having an EMI shielded pulse timing transmitter associated with and tailored to each stage of the pulse generator. Each pulse timing transmitter upon detection of a pulse triggers a laser diode to send an optical signal through a high frequency fiber optic cable to a pulse timing receiver which converts the optical signal to an electrical pulse. The electrical pulses from all pulse timing receivers are fed through an OR circuit to start a time interval measuring device and each electrical pulse is used to stop an individual channel in the measuring device thereby recording the firing sequence of the multi-stage pulse generator.

Longmire, Jerry L. (Los Alamos, NM); Thuot, Michael E. (Espanola, NM); Warren, David S. (Los Alamos, NM)

1985-01-01T23:59:59.000Z

370

Research on a super-small-scale MHD power system  

Science Conference Proceedings (OSTI)

This paper describes a super-small-scale MHD power system, which can generate 4--10W pulse power with a plasma produced by an explosive or combustion as a working substance. Heat shielding material was made and tested, with the result that electrical insulation is desirable. This power generator can be used as an electrical power source of rocket or missile fuses.

He, Z.; Huam, L.Z.; Yao, F.G. (East China Inst. of Tech., Nanjing (China))

1994-03-01T23:59:59.000Z

371

Power system failure analysis by using the discrete wavelet transform  

Science Conference Proceedings (OSTI)

Voltage variations are the most common power quality events that may result in corruption of different industrial processes. The electric power utility industry requires significant improvement in the quality of power provided to customers during faults ... Keywords: discrete wavelet transform, power system failure, wavelet entropy

Ismail Yilmazlar; Gulden Kokturk

2010-05-01T23:59:59.000Z

372

Generic Terminology Versus Specific Jargon in Power System Switching  

Science Conference Proceedings (OSTI)

This Technical Update report summarizes work performed in 2008 on the "Generic Terminology versus Specific Jargon in Power System Switching" task conducted by the EPRI Power Switching and Reliability project. Previous work was documented in reports 1013915 and 1012374. Research indicates that use of jargon or unfamiliar terms in power switching can result in switching errors, hazardous situations, and unintended power outages.

2008-11-11T23:59:59.000Z

373

Protection and Control for Grid Connected Photovoltaic Power Generation System Based on Instantaneous Power Theory  

Science Conference Proceedings (OSTI)

Reliable protection and reasonable control run an important role in grid connected PV power generation system. The detection and calculation of real and reactive power are the bases of many inverter resident passive and active islanding detection method ... Keywords: Distributed generation, photovoltaic system, grid connected, protection and control, power theory

Fei Wang; Chengcheng Zhang

2009-05-01T23:59:59.000Z

374

Robust decentralized fast-output sampling technique based power system stabilizer for a multi-machine power system  

Science Conference Proceedings (OSTI)

Power-system stabilizers (PSSs) are added to excitation systems to enhance the damping during low-frequency oscillations, In this paper, the design of robust decentralized PSS for four machines with a 10-bus system using fast-output sampling feedback ... Keywords: decentralized control, fast-output sampling feedback, multi-machine system, nonlinear simulation, power system stablizer, roboust control

Rajeev Gupta; B. Bandyopadhyay; A. M. Kulkarni

2005-04-01T23:59:59.000Z

375

China Wind Systems formerly Green Power Malex | Open Energy Information  

Open Energy Info (EERE)

Green Power Malex Green Power Malex Jump to: navigation, search Name China Wind Systems (formerly Green Power/Malex) Place Wuxi, Jiangsu Province, China Sector Wind energy Product Manufacturer of precision-forged rolled rings and machinery with applications for the wind power industry. References China Wind Systems (formerly Green Power/Malex)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. China Wind Systems (formerly Green Power/Malex) is a company located in Wuxi, Jiangsu Province, China . References ↑ "China Wind Systems (formerly Green Power/Malex)" Retrieved from "http://en.openei.org/w/index.php?title=China_Wind_Systems_formerly_Green_Power_Malex&oldid=343554

376

Nonlinear modal interaction in HVDC/AC power systems with dc power modulation  

Science Conference Proceedings (OSTI)

In this paper investigation of nonlinear modal interaction using the normal form of vector fields technique is extended to HVDC/AC power systems with dc power modulation. The ac-dc interface equations are solved to form a state space model with second order approximation. Using the normal form technique, the system`s nonlinear dynamic characteristics are obtained. The proposed approach is applied to a 4-generator HVDC/AC test power system, and compare with the time domain solution.

Ni, Y.X. [Tsinghua Univ., Beijing (China); Vittal, V.; Kliemann, W.; Fouad, A.A. [Iowa State Univ., Ames, IA (United States)

1996-11-01T23:59:59.000Z

377

GUIDELINES FOR CERTIFICATION OF COMBINED HEAT AND POWER SYSTEMS  

E-Print Network (OSTI)

Description 1 CHP System Name 2 CEC Plant ID 3 EIA Plant ID 4 Qualifying Facility ID (if applicable) 5 Thermal, and emissions related to combined heat and power (CHP) system power plant operations. This information is used the power plant is first reported on Form CEC-2843. The respondent should use the Commission assigned code

378

NREL: News - NREL Names Santiago Grijalva Director for Power Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

013 013 NREL Names Santiago Grijalva Director for Power Systems Engineering July 1, 2013 Today, the Energy Department's National Renewable Energy Laboratory (NREL) announced a key hire to lead its Power Systems Engineering Center. Santiago Grijalva comes to NREL with both industry and academic experience, most recently from the Georgia Institute of Technology, where he held the position of Georgia Power Distinguished Professor and Strategic Energy Institute Associate Director for Electricity. As part of the Energy Systems Integration team at NREL, Dr. Grijalva will provide leadership to develop the strategic direction of the Power Systems Engineering Center, enhance technical capabilities and steward core competencies that advance electric power technologies. He will also lead

379

New and Underutilized Technology: Computer Power Management Systems |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Computer Power Management Systems Computer Power Management Systems New and Underutilized Technology: Computer Power Management Systems October 7, 2013 - 9:08am Addthis The following information outlines key deployment considerations for computer power management systems within the Federal sector. Benefits Computer power management systems include network-based software that manages computer power consumption by automatically putting them in standby, hibernation, or other low energy consuming state without interfering with user productivity or IT functions. Application Computer power management systems are applicable in most building categories with high computer counts. Key Factors for Deployment Life-cycle cost effectiveness studies are recommended prior to deployment. Ranking Criteria Federal energy savings, cost-effectiveness, and probability of success are

380

Program on Technology Innovation: EPRI Workshop on Power Electronics for the Power System  

Science Conference Proceedings (OSTI)

Generally speaking, power electronics is the process of employing semiconductor switching devices to change the characteristics (voltage, current, and/or frequency) of electrical power to suit a particular application. Power electronics can help the electric grid to become more efficient and reliable. This report summarizes the applications and role of power electronics associated with the power system. The technical challenges that should be taken into consideration are also listed. Additionally, the re...

2012-05-23T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Investigation of Multi-Frequency Power Transmission and System  

E-Print Network (OSTI)

This dissertation presents a new power system transmission concept based on frequency selectivity named Multi-Frequency Power System (MFPS). This system allows for selective power transmission among terminals in an interconnected system, and is enabled by power electronic technology. The dissertation starts with a presentation of some of the challenges faced by modern power systems, and includes a description of various power system technologies developed in an attempt to solve them. Then, our proposed solution is presented as an alternative to electric power transmission, and the fundamental concepts are explained. A version of the MFPS is developed, which has relevance to the problem of renewable sources integration. This AC DC Power System is further explored, and the topology of the system and the converters is presented, as well as the control techniques used in its operation. The dissertation also presents a performance study of the AC DC system, which was done in Simulink, and it demonstrates the robustness of the system under various dynamic and fault conditions. Finally, a summary of the work is given in the last section of the dissertation. The contributions of our research to the state of technology are discussed. These contributions include: the demonstration of power selectivity based on frequency identification, the development of a novel transmission system and a AC DC integrated implementation of it, and the development of a control and converter that enables selective power transmission. Also, some of the most relevant future research initiatives related to this topic are presented.

Barazarte Conte, Ronald

2011-08-01T23:59:59.000Z

382

Analysis of Control Interactions on FACTS-Assisted Power Systems  

Science Conference Proceedings (OSTI)

This report presents results of comprehensive analyses of the dynamic behavior for power systems controlled by multiple Flexible AC Transmission System (FACTS) Controllers. Using a representative "benchmark" power system throughout the analyses and studies, an approach identifying the most effective FACTS Controllers, location, type, and ratings was developed. The control and coordination among the implemented FACTS Controllers in the studied power system were extensively investigated.

1998-02-24T23:59:59.000Z

383

Hybrid Power System with a Controlled Energy Storage: Preprint  

DOE Green Energy (OSTI)

We investigated a small isolated hybrid power system that used two types of power generation; wind turbine and diesel generation. The interaction of diesel generation, the wind turbine, and the local load is complicated because both the load and the wind turbine fluctuate during the day. These fluctuations create imbalances in power distribution (energy sources are not equal to energy sinks) that can affect the frequency and the voltage in the power system. The addition of energy storage will help balance the distribution of power in the power network. For this paper, we studied the interaction among hybrid power system components and the relative size of the components. We also show how the contribution of wind energy affects the entire power system and distribution and the role of energy storage under the transient conditions caused by load changes and wind turbine start ups.

Muljadi, E.; Bialasiewicz, J. T.

2003-11-01T23:59:59.000Z

384

Optimal control for maximum power in thermal and chemical systems  

Science Conference Proceedings (OSTI)

This research treats power optimization for energy converters, such like thermal, solar and chemical engines. Thermodynamic analyses lead to converter's efficiency and limiting power. Steady and dynamic systems are investigated. Static optimization of ...

Stanislaw Sieniutycz

2009-09-01T23:59:59.000Z

385

NETL: Coal & Power Systems - Brief History of Coal Use  

NLE Websites -- All DOE Office Websites (Extended Search)

History of Coal Coal & Power Systems Brief History of Coal Use Steam Locomotive In the 1800s, one of the primary uses of coal was to fuel steam engines used to power locomotives....

386

Floating power optimization studies for the cooling system of a geothermal power plant  

DOE Green Energy (OSTI)

The floating power concept was studied for a geothermal power plant as a method of increasing the plant efficiency and decreasing the cost of geothermal power. The stored cooling concept was studied as a method of reducing the power fluctuations of the floating power concept. The studies include parametric and optimization studies for a variety of different types of cooling systems including wet and dry cooling towers, direct and indirect cooling systems, forced and natural draft cooling towers, and cooling ponds. The studies use an indirect forced draft wet cooling tower cooling system as a base case design for comparison purposes.

Shaffer, C.J.

1977-08-01T23:59:59.000Z

387

Characterization and assessment of novel bulk storage technologies : a study for the DOE Energy Storage Systems program.  

DOE Green Energy (OSTI)

This paper reports the results of a high-level study to assess the technological readiness and technical and economic feasibility of 17 novel bulk energy storage technologies. The novel technologies assessed were variations of either pumped storage hydropower (PSH) or compressed air energy storage (CAES). The report also identifies major technological gaps and barriers to the commercialization of each technology. Recommendations as to where future R&D efforts for the various technologies are also provided based on each technology's technological readiness and the expected time to commercialization (short, medium, or long term). The U.S. Department of Energy (DOE) commissioned this assessment of novel concepts in large-scale energy storage to aid in future program planning of its Energy Storage Program. The intent of the study is to determine if any new but still unproven bulk energy storage concepts merit government support to investigate their technical and economic feasibility or to speed their commercialization. The study focuses on compressed air energy storage (CAES) and pumped storage hydropower (PSH). It identifies relevant applications for bulk storage, defines the associated technical requirements, characterizes and assesses the feasibility of the proposed new concepts to address these requirements, identifies gaps and barriers, and recommends the type of government support and research and development (R&D) needed to accelerate the commercialization of these technologies.

Huff, Georgianne; Tong, Nellie (KEMA Consulting, Fairfax, VA); Fioravanti, Richard (KEMA Consulting, Fairfax, VA); Gordon, Paul (Sentech/SRA International, Bethesda, MD); Markel, Larry (Sentech/SRA International, Bethesda, MD); Agrawal, Poonum (Sentech/SRA International, Bethesda, MD); Nourai, Ali (KEMA Consulting, Fairfax, VA)

2011-04-01T23:59:59.000Z

388

Rf power systems for the national synchrotron light source  

SciTech Connect

The booster synchrotron and the two storage rings at the NSLS are provided with rf power systems of 3 kW, 50 kW, and 500 kW nominal output power, all at 53 MHz. This power is supplied by grounded grid tetrode amplifiers designed for television broadcast service. These amplifiers and associated power supplies, control and interlock systems, rf controls, and computer interface are described.

Dickinson, T.; Rheaume, R.H.

1981-01-01T23:59:59.000Z

389

Correlating Power Quality Indices with System Reliability Indices  

Science Conference Proceedings (OSTI)

Energy companies can use better knowledge about existing power quality to target maintenance efforts, to establish a baseline for offering premium power services, and to use as a selling tool to sell sites with high power quality. Unfortunately, most energy companies do not have widespread, long-term records of power quality needed to provide this information. But energy companies often have good historical records of reliability indices for all circuits on their system (System Average Interruption Frequ...

2005-03-30T23:59:59.000Z

390

Southwestern Federal Power System's Fiscal Year 2012 Financial Statement Audit  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Southwestern Federal Power Southwestern Federal Power System's Fiscal Year 2012 Financial Statement Audit OAS-FS-13-13 August 2013 Department of Energy Washington, DC 20585 August 12, 2013 MEMORANDUM FOR THE ADMINISTRATOR, SOUTHWESTERN POWER ADMINISTRATION FROM: Daniel M. Weeber Assistant Inspector General for Audits and Administration Office of Inspector General SUBJECT: INFORMATION: Southwestern Federal Power System's Fiscal Year 2012 Financial Statement Audit The attached report presents the results of the independent certified public accountants' audit of the Southwestern Federal Power System's (SWFPS) combined balance sheets, as of September 30, 2012 and 2011, and the related combined statements of changes in

391

Energy Department Nuclear Systems Are Powering Mars Rover | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Department Nuclear Systems Are Powering Mars Rover Energy Department Nuclear Systems Are Powering Mars Rover Energy Department Nuclear Systems Are Powering Mars Rover November 28, 2011 - 2:00pm Addthis The Mars Science Laboratory rover, which launched from Cape Canaveral this weekend, is powered by nuclear systems developed by the U.S. Department of Energy (DOE), marking the 28th space mission supported by nuclear energy. This year also marks the 50th anniversary of nuclear-powered space exploration. To commemorate the launch, DOE released a new video highlighting this legacy and the Department's work designing these advanced systems. "For the last 50 years, this technology has supported the peaceful use of nuclear power for space exploration, helping to shape the world's understanding of our solar system," said U.S. Energy Secretary Steven

392

American Energy Power Systems Inc AEPS | Open Energy Information  

Open Energy Info (EERE)

Inc AEPS Inc AEPS Jump to: navigation, search Name American Energy Power Systems Inc (AEPS) Place Sacramento, California Sector Solar Product Offered distributed power systems including PV panels, solar water heating, fuel cells and radiant floor heating applications. References American Energy Power Systems Inc (AEPS)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. American Energy Power Systems Inc (AEPS) is a company located in Sacramento, California . References ↑ "American Energy Power Systems Inc (AEPS)" Retrieved from "http://en.openei.org/w/index.php?title=American_Energy_Power_Systems_Inc_AEPS&oldid=342116" Categories: Clean Energy Organizations

393

Energy Department Nuclear Systems Are Powering Mars Rover | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Department Nuclear Systems Are Powering Mars Rover Department Nuclear Systems Are Powering Mars Rover Energy Department Nuclear Systems Are Powering Mars Rover November 28, 2011 - 12:14pm Addthis Washington, D.C. - The Mars Science Laboratory rover, which launched from Cape Canaveral this weekend, is powered by nuclear systems developed by the U.S. Department of Energy (DOE), marking the 28th space mission supported by nuclear energy. This year also marks the 50th anniversary of nuclear-powered space exploration. To commemorate the launch, DOE released a new video highlighting this legacy and the Department's work designing these advanced systems. "For the last 50 years, this technology has supported the peaceful use of nuclear power for space exploration, helping to shape the world's understanding of our solar system," said U.S. Energy Secretary Steven

394

Reliability evaluation of electric power system including wind power and energy storage .  

E-Print Network (OSTI)

??Global environmental concerns associated with conventional energy generation have led to the rapid growth of wind energy applications in electric power systems. Growing demand for… (more)

Hu, Po

2009-01-01T23:59:59.000Z

395

Communication infrastructure planning for wide area measurement systems in power systems  

Science Conference Proceedings (OSTI)

Smart grid denotes integration of all elements connected to a power grid with a communication infrastructure. In modern power systems, wide area measurement systems WAMS are such systems that use communication infrastructure to share their data and information. ...

Mohammad Shahraeini; Mohammad Hossein Javidi; Mohammad Sadegh Ghazizadeh

2013-06-01T23:59:59.000Z

396

Design of power systems for extensible surface mobility systems on the Moon and Mars  

E-Print Network (OSTI)

This thesis presents the power system model description and sample studies for extensible surface mobility systems on the Moon and Mars. The mathematical model of power systems for planetary vehicles was developed in order ...

Hong, SeungBum, S.M. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

397

Active Distributed Power Systems Functional Structures for Real-Time Operation of Sustainable Energy Systems.  

E-Print Network (OSTI)

??Present power system will face great challenges in several areas depending on the market economy, extensive global integration and constant need for more electric power,… (more)

Svensson, Jörgen

2006-01-01T23:59:59.000Z

398

Heuristic and metaheuristic optimization techniques with application to power systems  

Science Conference Proceedings (OSTI)

The development of modern wide-area power systems, as well as recent trends towards the creation of sustainable energy systems have given birth to complex studies addressing technical, but also economical and environmental, aspects related to simple ... Keywords: efficiency, heuristic optimization, metaheuristic optimization, power systems

Mihai Gavrilas

2010-10-01T23:59:59.000Z

399

STUDY and analysis of systems for monitoring in power substations  

Science Conference Proceedings (OSTI)

The intensive development of science and technology in all areas of our daily live reflects and in the systems for monitoring and recording processes of abnormal modes in the power equipment of substations. Monitoring systems report their apogee in the ... Keywords: application, development, monitoring system, power substation

Nikolina Petkova; Valeri Mladenov; Angel Tsolov; Petar Nakov; Georgi Bozukov

2011-07-01T23:59:59.000Z

400

Hybrid Discrete and Continuous Control for Power Systems  

Science Conference Proceedings (OSTI)

The control of the electricity supply from generation to end-use has been an engineering and mathematical challenge for many decades. The continuous increase in power requirements, system interconnections and technological options prompted the search ... Keywords: electric systems, intelligent controls, power systems

W. H. Esselman; D. J. Sobajic; J. Maulbetsch

1999-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Brief paper: A power system nonlinear adaptive decentralized controller design  

Science Conference Proceedings (OSTI)

In this paper, a novel excitation control is designed for improvement of transient stability of power systems. The control algorithm is based on the adaptive backstepping method in a recursive way without linearizing the system model. Lyapunov function ... Keywords: Adaptive control, Backstepping design, Nonlinear decentralized control, Power systems, Transient stability

Rui Yan; ZhaoYang Dong; T. K. Saha; Rajat Majumder

2010-02-01T23:59:59.000Z

402

System-wide emissions implications of increased wind power penetration.  

DOE Green Energy (OSTI)

This paper discusses the environmental effects of incorporating wind energy into the electric power system. We present a detailed emissions analysis based on comprehensive modeling of power system operations with unit commitment and economic dispatch for different wind penetration levels. First, by minimizing cost, the unit commitment model decides which thermal power plants will be utilized based on a wind power forecast, and then, the economic dispatch model dictates the level of production for each unit as a function of the realized wind power generation. Finally, knowing the power production from each power plant, the emissions are calculated. The emissions model incorporates the effects of both cycling and start-ups of thermal power plants in analyzing emissions from an electric power system with increasing levels of wind power. Our results for the power system in the state of Illinois show significant emissions effects from increased cycling and particularly start-ups of thermal power plants. However, we conclude that as the wind power penetration increases, pollutant emissions decrease overall due to the replacement of fossil fuels.

Valentino, L.; Valenzuela, V.; Botterud, A.; Zhou, Z.; Conzelmann, G. (Decision and Information Sciences); (Univ. of Illinois, Champaign/Urbana); (Georgia Institute of Technology)

2012-01-01T23:59:59.000Z

403

Laser Welding for Nuclear Power Systems  

Science Conference Proceedings (OSTI)

Enhancement of Intergranular Corrosion Resistance of TIG Welded and Laser- surface Melted SUS 304 for Nuclear Power Plants · Evaluation of Nanofeature ...

404

Protecting Computer Systems Against Power Transients  

Science Conference Proceedings (OSTI)

... protection may be more important than some data loss. ... by a telephone or other network link to ... are buffered by the computer's power supply but ...

2013-05-17T23:59:59.000Z

405

Nickel Alloys Used in Nuclear Power Systems  

Science Conference Proceedings (OSTI)

Abstract Scope, Nickel based alloys are used extensively in nuclear power ... of Zircaloy Liquidus and Solidus with an Instrumented Transvarestraint Test.

406

Hybrid robust predictive optimization method of power system dispatch  

DOE Patents (OSTI)

A method of power system dispatch control solves power system dispatch problems by integrating a larger variety of generation, load and storage assets, including without limitation, combined heat and power (CHP) units, renewable generation with forecasting, controllable loads, electric, thermal and water energy storage. The method employs a predictive algorithm to dynamically schedule different assets in order to achieve global optimization and maintain the system normal operation.

Chandra, Ramu Sharat (Niskayuna, NY); Liu, Yan (Ballston Lake, NY); Bose, Sumit (Niskayuna, NY); de Bedout, Juan Manuel (West Glenville, NY)

2011-08-02T23:59:59.000Z

407

Bulk Metallic Glasses X  

Science Conference Proceedings (OSTI)

Jul 31, 2012 ... Aerospace and Spacecraft Applications for Bulk Metallic Glasses and Matrix Composites · Air Oxidation of a Binary Cu64.5Zr35.5 Bulk Metallic ...

408

An observability formulation for nonlinear power systems modeled as differential algebraic systems.  

E-Print Network (OSTI)

??Recently the power system industry has witnessed an increase in system automation affecting all aspects of operation and requiring knowledge of system states that are… (more)

Dafis, Chris J.

2005-01-01T23:59:59.000Z

409

Audit of Funding for Advanced Radioisotope Power Systems, IG-0413  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

October 17, 1997 October 17, 1997 MEMORANDUM FOR THE SECRETARY FROM: John C. Layton Inspector General SUBJECT: INFORMATION: "Audit of Funding for Advanced Radioisotope Power Systems" BACKGROUND: The Department of Energy's (Department) Advanced Radioisotope Power Systems Program maintains the sole national capability and facilities to produce radioisotope power systems for the National Aeronautics and Space Administration (NASA), the Department of Defense, and other Federal agencies. For the past seven years the program emphasis has been on providing power systems for NASA's Cassini mission to Saturn, which was launched earlier this month. We initiated this audit to determine whether the

410

Energy Department Nuclear Systems Are Powering Mars Rover  

NLE Websites -- All DOE Office Websites (Extended Search)

Affairs Media Contact: 202-586-4940 For Immediate Release: Monday, November 28, 2011 Energy Department Nuclear Systems Are Powering Mars Rover 2011 Marks 50th Anniversary of...

411

Visualization of Electric Power System Information: Workshop Proceedings  

Science Conference Proceedings (OSTI)

This report summarizes the workshop entitled: Visualization of Electric Power System Information. The workshop was held on September 11, 2012 on NREL's campus in Golden, Colorado.

Kroposki, B.; Komomua, C.

2013-01-01T23:59:59.000Z

412

Power Electronic Thermal System Performance and Integration (Presentation)  

DOE Green Energy (OSTI)

This presentation gives an overview of the status and FY09 accomplishments for the NREL Power Electronic Thermal System Performance and Integration Project.

Bennion, K.

2009-05-01T23:59:59.000Z

413

Materials for Clean Coal Power and CCS Systems II  

Science Conference Proceedings (OSTI)

Feb 15, 2010 ... Materials in Clean Power Systems V: Clean Coal-, Hydrogen Based- Technologies, Fuel Cells, and Materials for Energy Storage: Materials for ...

414

Solar-hydrogen systems for remote area power supply.  

E-Print Network (OSTI)

??Remote area power supply (RAPS) is a potential early market for solar-hydrogen systems because of the comparatively high cost of conventional energy sources such as… (more)

Ali, S

2007-01-01T23:59:59.000Z

415

Wind-hydrogen energy systems for remote area power supply.  

E-Print Network (OSTI)

??Wind-hydrogen systems for remote area power supply are an early niche application of sustainable hydrogen energy. Optimal direct coupling between a wind turbine and an… (more)

Janon, A

2009-01-01T23:59:59.000Z

416

California ISO Your Link to Power California Independent System...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

California ISO Your Link to Power California Independent System Operator Corporation Laura J. Manz Vice President, Market & Infrastructure Development April 3, 2009 Transmission...

417

MANAGING MODERNIZATION OF NUCLEAR POWER PLANT INSTRUMENTATION AND CONTROL SYSTEMS  

E-Print Network (OSTI)

Managing modernization of nuclear power plant instrumentation and control systems February 2004The originating Section of this publication in the IAEA was:

unknown authors

2003-01-01T23:59:59.000Z

418

Report on audit of funding for advanced radioisotope power systems  

Science Conference Proceedings (OSTI)

The U.S. Department of Energy`s (Department) Advanced Radioisotope Power Systems Program maintains the sole national capability and facilities to produce radioisotope power systems for the National Aeronautics and Space Administration (NASA), the Department of Defense, and other Federal agencies. Projects are conducted with these agencies in accordance with written agreements and are dependent on cost sharing by the user agencies. For the past seven years the program emphasis has been on providing power systems for NASA`s Cassini mission to Saturn, which was launched earlier this month. We initiated this audit to determine whether the Department received proper reimbursement from NASA for the radioisotope power systems produced.

NONE

1997-10-17T23:59:59.000Z

419

REQUEST BY BALLARD POWER SYSTEMS CORPORATION FOR AN ADVANCE WAIVER...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

dc-to-dc converters embedded within the integrated power train systems used by these manufacturers for their fuel cell vehicle fleets being developed and sold in limited...

420

Rotary bulk solids divider  

DOE Patents (OSTI)

An apparatus for the disbursement of a bulk solid sample comprising, a gravity hopper having a top open end and a bottom discharge end, a feeder positioned beneath the gravity hopper so as to receive a bulk solid sample flowing from the bottom discharge end, and a conveyor receiving the bulk solid sample from the feeder and rotating on an axis that allows the bulk solid sample to disperse the sample to a collection station.

Maronde, Carl P. (McMurray, PA); Killmeyer, Jr., Richard P. (Pittsburgh, PA)

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Researchers test novel power system for space travel  

NLE Websites -- All DOE Office Websites (Extended Search)

Power system for space travel Power system for space travel Researchers test novel power system for space travel The research team recently demonstrated the first use of a heat pipe to cool a small nuclear reactor and power a Stirling engine. November 26, 2012 John Bounds of Los Alamos National Laboratory's Advanced Nuclear Technology Division makes final adjustments on the DUFF experiment, a demonstration of a simple, robust fission reactor prototype that could be used as a power system for space travel. DUFF is the first demonstration of a space nuclear reactor system to produce electricity in the United States since 1965. John Bounds of Los Alamos National Laboratory's Advanced Nuclear Technology Division makes final adjustments on the DUFF experiment, a demonstration of a simple, robust fission reactor prototype that could be used as a power

422

Power-reduction techniques for data-center storage systems  

Science Conference Proceedings (OSTI)

As data-intensive, network-based applications proliferate, the power consumed by the data-center storage subsystem surges. This survey summarizes, organizes, and integrates a decade of research on power-aware enterprise storage systems. All of the existing ... Keywords: Cloud storage, data center, disk drive, energy efficiency, power reduction

Tom Bostoen, Sape Mullender, Yolande Berbers

2013-06-01T23:59:59.000Z

423

Analysis on DFIG Wind Power System Low-Voltage Ridethrough  

Science Conference Proceedings (OSTI)

Due to the double fed induction generator’s (DFIG) advantage of controlling active and reactive power independently and partial power converter, DFIG is becoming a popular type of wind power generation system. Nowadays, the grid code demands that ... Keywords: VSCF, DFIG, LVRT, Crowbar, Voltage sags

Yulong Wang; Jianlin Li; Shuju Hu; Honghua Xu

2009-04-01T23:59:59.000Z

424

Research on the Hybrid Clean Energy Power System  

Science Conference Proceedings (OSTI)

This paper aims to design a hybrid clean energy power system with 3kW by utilizing the complementarities between the clean energies, or with and other energies. It unites the solar photovoltaic (PV) , the wind power, batteries and the diesel generator ... Keywords: clean energy, DC-DC controller, power management, BMS

Chun Wang, Zuhua Fang, Tingting Hong, Wen Lv, Ying Sun, Hongbing Xu, Jiajia Li, Younan Wang, Peiying Han

2012-07-01T23:59:59.000Z

425

UPDATE ON GASIFICATION TESTING AT THE POWER SYSTEMS DEVELOPMENT FACILITY  

E-Print Network (OSTI)

The Power Systems Development Facility (PSDF) located in Wilsonville, Alabama was established in 1995 to lead the United States ' effort to develop cost-competitive, environmentally acceptable, coal-based power plant technologies. The PSDF is an engineering scale demonstration of key components of an Integrated Gasification Combined Cycle (IGCC) power

Senior Engineer; Pannalal Vimalchand; Roxann Leonard; Robert C. Lambrecht

2008-01-01T23:59:59.000Z

426

Thermal power systems: Small Power Systems Applications Project. Volume II. Detailed report. Annual technical report, fiscal year 1978  

SciTech Connect

Small Power Systems Applications activities for FY 1978 are reported. Studies were conducted to address current small power system technology as applied to power plants up to 10 MWe in size. Markets for small power systems were characterized and cost goals were established for the project. Candidate power plant system design concepts were selected for evaluation and preliminary performance and cost assessments were made. Economic studies were conducted at JPL and under contract to Burns and McDonnell. Breakeven capital costs were determined for leading contenders among the candidate systems. An applications study was made of the potential use of small power systems in providing part of the demand for pumping power by the extensive aqueduct system of California, estimated to be 1000 MWe by 1985. Criteria and methodologies were developed for application to the ranking of candidate power plant system design concepts. Experimental power plants concepts of 1 MWe rating were studied by three contractors as a Phase I effort leading toward the definition of a power plant configuration for subsequent detail design, construction, testing and evaluation as Engineering Experiment No. 1 (EE No. 1). Site selection criteria and ground rules for the solicitation of EE No. 1 site participation proposals by DOE were developed.

1979-01-15T23:59:59.000Z

427

Environmental impacts of nonfusion power systems. [Data on environmental effects of all power sources that may be competitive with fusion reactor power plants  

DOE Green Energy (OSTI)

Data were collected on the environmental effects of power sources that may be competitive with future fusion reactor power plants. Data are included on nuclear power plants using HTGR, LMBR, GCFR, LMFBR, and molten salt reactors; fossil-fuel electric power plants; geothermal power plants; solar energy power plants, including satellite-based solar systems; wind energy power plants; ocean thermal gradient power plants; tidal energy power plants; and power plants using hydrogen and other synthetic fuels as energy sources.

Brouns, R.J.

1976-09-01T23:59:59.000Z

428

Conceptual design and systems analysis of photovoltaic power systems. Volume II. Systems. Revised final report  

DOE Green Energy (OSTI)

Conceptual designs were made and analyses were performed on three types of solar photovoltaic power systems. Included were Residential (1--10 kW), Intermediate (0.1--10 MW), and Central (50--1000 MW) Power Systems to be installed in the 1985 to 2000 time period. Detailed descriptions of each of the three systems studied, descriptions of the necessary subsystems, and discussions of the interfaces between them are presented. Included also are descriptions of system performance and system cost used to perform an economic analysis which assesses the value of each system.

Pittman, P.F.

1977-03-01T23:59:59.000Z

429

PowerView monitoring system for instant power consumption in tritium separation technological installations  

Science Conference Proceedings (OSTI)

The paper shows the development of some integrated systems for monitoring and control of instant power consumption in normal and abnormal operation mode of tritium separation technological installations, with the view of reducing energy losses, supports ... Keywords: monitoring systems, power consumption

Carmen Maria Moraru; Ciprian Ciprian Bucur; Iulia Stefan; Ovidiu Balteanu

2011-07-01T23:59:59.000Z

430

Linear Concentrator Systems for Concentrating Solar Power  

Energy.gov (U.S. Department of Energy (DOE))

Linear concentrating solar power (CSP) collectors capture the sun's energy with large mirrors that reflect and focus the sunlight onto a linear receiver tube. The receiver contains a fluid that is...

431

Combustion systems for power-MEMS applications  

E-Print Network (OSTI)

As part of an effort to develop a micro-scale gas turbine engine for power generation and micro-propulsion applications, this thesis presents the design, fabrication, experimental testing, and modeling of the combustion ...

Spadaccini, Christopher M. (Christopher Michael), 1974-

2004-01-01T23:59:59.000Z

432

Projects To Develop Novel Monitoring Networks for Advanced Power Systems  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

To Develop Novel Monitoring Networks for Advanced Power To Develop Novel Monitoring Networks for Advanced Power Systems Selected Projects To Develop Novel Monitoring Networks for Advanced Power Systems Selected September 1, 2010 - 1:00pm Addthis Washington, DC - Five projects that will develop technologically sophisticated monitoring networks for advanced fossil energy power systems have been selected for continued research by the U.S. Department of Energy (DOE). The projects will support efforts by the Office of Fossil Energy's (FE) Advanced Research--Coal Utilization Science (CUS) Program to study novel approaches in model development and validation; monitoring refractory health; and wireless, self-powered sensors for advanced, next-generation power systems. They will monitor the status of equipment, materials

433

Low Power System Design Techniques for Mobile Computers  

E-Print Network (OSTI)

Portable products such as pagers, cordless and digital cellular telephones, personal audio equipment, and laptop computers are being used increasingly. Because these applications are battery powered, reducing power consumption is vital. In this report we first give the properties of low power design and techniques to exploit them on the hardware level such as: minimize capacitance, avoid wasteful activity, and reduce voltage and frequency. We will then elaborate on low power system-design techniques in which the main themes are to avoid wasteful activity at system level and to exploit locality of reference. Finally we review energy reduction techniques in the design of a wireless communication system, including system decomposition, communication and MAC protocols, and low power short range networks. 1 Introduction The requirement of portability of hand-held computers and portable devices places severe restrictions on size and power consumption. Even though battery technology is impr...

Paul J.M. Havinga; Gerard J. M. Smit

1997-01-01T23:59:59.000Z

434

Connecting renewable power sources into the system  

SciTech Connect

The many technical, legal, and economic issues that must be overcome before windmills, fuel cells, and photovoltaics can serve existing grids ae discusssed. Distributed storage and generation sources (DSGs) consist of energy converters to transform sun, wind, or chemical energy into electricity; a power conditioner to convert dc to ac; relays, breakers, and fuses for equipment protection and personnel safety; and appropriate load-metering equipment for billing customers. Aside from windmills and windfarms, there are few utility owned DSGs. The Public Utilities Regulatory Policy Act (1978) requires utilities to permit the connection to their power grids of private DSGs with capacities of up to 80 MW. In addition, the utilities must purchase the power from the DSG owned at ''just and reasonable rates'' and offer to supply backup power if the owner's facility malfunctions. Before connecting to a utility line, a DSG entrepreneur must meet certain specifications spelled out by the participating utility. Long-range power-distribution strategies will be needed to assess various automated distribution schemes that have been proposed, together with communication techniques to control and coordinate the small and large DSG within a highly complex power grid.

Wetzler, F.U.

1982-11-01T23:59:59.000Z

435

Cyber vulnerability in power systems operation and control  

Science Conference Proceedings (OSTI)

Modern power systems are composed of several interacting national systems synchronously or asynchronously interconnected over large geographic areas, and in the European case on a continental basis. In each country several areas are put under the control ...

Ettore Bompard; Paolo Cuccia; Marcelo Masera; Igor Nai Fovino

2012-01-01T23:59:59.000Z

436

Model Abstraction Techniques for Large-Scale Power Systems  

E-Print Network (OSTI)

Report on System Simulation using High Performance Computing Prepared by New Mexico Tech New Mexico: Application of High Performance Computing to Electric Power System Modeling, Simulation and Analysis Task Two

437

Energy Storage Systems 2007 Peer Review - Power Electronics Presentati...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Systems Distributed Control - Mariesa Crow, U Missouri-Rolla.pdf ESS 2007 Peer Review - SiC Power Converter System Thermal Mgmt and High Temp Packaging - Timothy Lin, Aegis.pdf...

438

Design of control for efficiency of AUV power systems  

E-Print Network (OSTI)

The MIT Rapid Development Group designed and built an internal combustion hybrid recharging system for the REMUS 600 Autonomous Underwater Vehicle (AUV) in collaboration with the MIT Lincoln Laboratory. This power system ...

Ware, Laura M. (Laura Marie)

2012-01-01T23:59:59.000Z

439

Shipboard condition based maintenance and integrated power system initiatives  

E-Print Network (OSTI)

With the U.S. Navy's continued focus on developing and implementing a robust integrated power system aboard future combatants, there has been an ever increasing effort to guarantee an electrical distribution system that ...

Barber, Darrin E. (Darrin Eugene)

2011-01-01T23:59:59.000Z

440

Hybrid distributed generation for power distribution systems planning  

Science Conference Proceedings (OSTI)

This paper presents planning models for hybrid distributed generation systems, as well as the results corresponding to a distribution systems planning problem obtained using a new computational tool based on a Geographic Information System, GIS. This ... Keywords: distributed generation (DG), geographical information systems (GIS), hybrid power systems, optimal planning

I. J. Ramírez-Rosado; P. J. Zorzano-Santamaría; L. A. Fernández-Jiménez; E. García-Garrido; P. Lara-Santillán; E. Zorzano-Alba; M. Mendoza-Villena

2006-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "bulk power system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Cyber Security Procurement Methodology for Power Delivery Systems  

Science Conference Proceedings (OSTI)

Determining how to apply cyber security requirements for new power delivery systems requires cyber security experts, power system engineers, and procurement organizations to work together with vendors to implement and maintain cyber security controls. Improper or incomplete implementation of controls due to lack of proper requirements and/or division of responsibilities between the utility and vendor can often result in costly backfit to meet requirements.The Electric Power Research ...

2012-12-31T23:59:59.000Z

442

Fossil Power Plant Applications of Expert Systems: An EPRI Perspective  

E-Print Network (OSTI)

During the past decade, the field of artificial intelligence (AI) has witnessed tremendous growth. In particular, knowledge-based expert systems have quickly come to fore as one of the fastest growing subfields of AI. In this presentation we discuss the role of expert systems in the electric power industry, with particular emphasis on six fossil power plant applications currently under development by the Electric Power Research Institute.

Divakaruni, S. M.

1989-09-01T23:59:59.000Z

443

Use of superconductive technology for energy storage and power transmission for large power systems: power parks  

DOE Green Energy (OSTI)

A general review and technology assessment of superconducting magnets for energy storage and superconducting cables for power transmission are presented. It is concluded that the technology is now available for applying superconductivity in the power industry. (TFD)

Keller, W.E.

1977-01-01T23:59:59.000Z

444

Power Shape Monitoring System (PSMS), Volume 1: Overview and Performance  

Science Conference Proceedings (OSTI)

Volume 1 provides an overview of the first-generation power shape monitoring system (PSMS) for BWRs, which has been undergoing field testing at the Oyster Creek nuclear plant. The system's functional requirements and its hardware and software are described. The accuracy of the Oyster Creek PSMS is evaluated--specifically, its power prediction capabilities.

1981-02-01T23:59:59.000Z

445

Electrical power systems protection and interdependencies with ICT  

Science Conference Proceedings (OSTI)

This section discusses the protection of electrical power systems (EPS) and its relation to the supporting Information and Communication Technologies (ICT) infrastructure. Several dimensions are addressed, ranging from the need of protection and available ... Keywords: critical infrastructures, disturbance, electrical power system, interdependencies, protection

George M. Milis; Elias Kyriakides; Antonis M. Hadjiantonis

2012-01-01T23:59:59.000Z

446

Pipelining with common operands for power-efficient linear systems  

Science Conference Proceedings (OSTI)

We propose a systematic pipelining method for a linear system to minimize power and maximize throughput, given a constraint on the number of pipeline stages and a set of resource constraints. Unlike most existing pipelining approaches, our method takes ... Keywords: common operand, linear system, operand sharing, pipelining, power

Daehong Kim; Dongwan Shin; Kiyoung Choi

2005-09-01T23:59:59.000Z

447

Green Scheduling: Scheduling of Control Systems for Peak Power Reduction  

E-Print Network (OSTI)

approaches for load shifting and model predictive control have been proposed, we present an alternative approach to reduce the peak power for a set of control systems. The proposed model is intuitive, scalableGreen Scheduling: Scheduling of Control Systems for Peak Power Reduction Truong Nghiem, Madhur Behl

Pappas, George J.

448

Optimization system for operation of gas cogeneration power plant  

Science Conference Proceedings (OSTI)

The paper presents a distributed control system for the realization of cogenerative supply of electricity and heat and, in given case, for their combination with waste heat recovery, particularly in combined (gas-steam) cycle industrial power plants. ... Keywords: cogenerative gas power plant, control of distributed parameter systems, optimization, process control

Ion Miciu

2008-09-01T23:59:59.000Z

449

PRESSURIZED SOLID OXIDE FUEL CELL/GAS TURBINE POWER SYSTEM  

DOE Green Energy (OSTI)

Power systems based on the simplest direct integration of a pressurized solid oxide fuel cell (SOFC) generator and a gas turbine (GT) are capable of converting natural gas fuel energy to electric power with efficiencies of approximately 60% (net AC/LHV), and more complex SOFC and gas turbine arrangements can be devised for achieving even higher efficiencies. The results of a project are discussed that focused on the development of a conceptual design for a pressurized SOFC/GT power system that was intended to generate 20 MWe with at least 70% efficiency. The power system operates baseloaded in a distributed-generation application. To achieve high efficiency, the system integrates an intercooled, recuperated, reheated gas turbine with two SOFC generator stages--one operating at high pressure, and generating power, as well as providing all heat needed by the high-pressure turbine, while the second SOFC generator operates at a lower pressure, generates power, and provides all heat for the low-pressure reheat turbine. The system cycle is described, major system components are sized, the system installed-cost is estimated, and the physical arrangement of system components is discussed. Estimates of system power output, efficiency, and emissions at the design point are also presented, and the system cost of electricity estimate is developed.

W.L. Lundberg; G.A. Israelson; R.R. Moritz (Rolls-Royce Allison); S.E. Veyo; R.A. Holmes; P.R. Zafred; J.E. King; R.E. Kothmann (Consultant)

2000-02-01T23:59:59.000Z

450

Kilowatt isotope power system phase II plan. Volume II: flight System Conceptual Design (FSCD)  

SciTech Connect

The Kilowatt Isotope Power System (KIPS) Flight System Conceptual Design (FSCD) is described. Included are a background, a description of the flight system conceptual design, configuration of components, flight system performance, Ground Demonstration System test results, and advanced development tests.

1978-03-01T23:59:59.000Z

451

Design and operation of power systems with large amounts of wind power  

E-Print Network (OSTI)

Production”has been formed in IEA Wind. The R&D task will collect and share information on the experience gained and the studies made on power system impacts of wind power, and review methodologies, tools and data used. This paper outlines the power system impacts of wind power, the national studies published and ongoing and describes the goals of the international collaboration. There are dozens of studies made and ongoing related to cost of wind integration, however, the results are not easy to compare. An indepth review of the studies is needed to draw conclusions on the range of integration costs for wind power. Stateofthe art review process will seek for reasons behind the wide range of results for costs of wind integration –definitions for wind penetration, reserves and costs; different power system and load characteristics and operational rules; underlying assumptions on variability of wind etc. 1

Hannele Holttinen; Peter Meibom; Cornel Ensslin; Lutz Hofmann; John Mccann; Jan Pierik; John Olav T

2009-01-01T23:59:59.000Z

452

Conceptual design and systems analysis of photovoltaic power systems. Volume III(1). Technology  

DOE Green Energy (OSTI)

Conceptual designs were made and analyses were performed on three types of solar photovoltaic power systems. Included were Residential (1 to 10 kW), Intermediate (0.1 to 10 MW), and Central (50 to 1000 MW) Power Systems to be installed in the 1985 to 2000 time period. Subsystem technology presented here includes: insolation, concentration, silicon solar cell modules, CdS solar cell module, array structure, battery energy storage, power conditioning, residential power system architectural designs, intermediate power system structural design, and central power system facilities and site survey.

Pittman, P.F.

1977-05-01T23:59:59.000Z

453

Future Power Systems 21 - The Smart Customer | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1 - The Smart Customer 1 - The Smart Customer Future Power Systems 21 - The Smart Customer Future Power Systems 21 - The Smart Customer: From Future Power Systems (FPS) articles 18 and 19 we can see that there are a number of different trading and tariff mechanisms which can be employed on the utility to customer interface to enable participation. From article 20 we see that there will be different pricing profiles on similar day types due to changes in availability of renewable generation. Future Power Systems 21 - The Smart Customer More Documents & Publications Future Power Systems 20: The Smart Enterprise, its Objective and Forecasting. AARP, National Consumer Law Center, and Public Citizen Comments to:DEPARTMENT OF ENERGY Smart Grid RFI: Addressing Policy and Logistical

454

FERC Presendation: Demand Response as Power System Resources, October 29,  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

FERC Presendation: Demand Response as Power System Resources, FERC Presendation: Demand Response as Power System Resources, October 29, 2010 FERC Presendation: Demand Response as Power System Resources, October 29, 2010 Federal Energy Regulatory Commission (FERC) presentation on demand response as power system resources before the Electicity Advisory Committee, October 29, 2010 Demand Response as Power System Resources More Documents & Publications A National Forum on Demand Response: Results on What Remains to Be Done to Achieve Its Potential - Cost-Effectiveness Working Group Loads Providing Ancillary Services: Review of International Experience Benefits of Demand Response in Electricity Markets and Recommendations for Achieving Them. A report to the United States Congress Pursuant to Section 1252 of the Energy Policy Act of 2005 (February 2006)

455

Developing Secure Power Systems Professional Competence: Alignment and Gaps  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Developing Secure Power Systems Professional Competence: Alignment Developing Secure Power Systems Professional Competence: Alignment and Gaps in Workforce Development Programs - Phase 2 (July/August 2013) Developing Secure Power Systems Professional Competence: Alignment and Gaps in Workforce Development Programs - Phase 2 (July/August 2013) DOE has recognized that the electricity industry needs workforce development resources that can aid in the accelerating need for Secure Power Systems Professionals, while at the same time identifying capabilities and competencies to protect and enable the modernized grid currently being built. In the spring of 2011 a project was initiated to identify those capabilities and competencies along with assessing the need and qualifications for a certification program for Secure Power Systems

456

Green Power Network: On-site Renewable Energy Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

On-site Renewable Energy Systems On-site Renewable Energy Systems For consumers or organizations wishing to install on-site renewable energy systems, there are a variety of options available, including electricity generating systems and thermal systems that can displace electricity or fossil fuel use. Solar photovoltaics convert sunlight directly into electricity. Solar hot water systems use the sun's energy to heat water. Wind turbines convert the kinetic energy in wind into mechanical power that runs a generator to produce electricity. Geothermal heat pumps use the constant temperature of the upper 10 feet of the Earth to heat and cool buildings. Fuel cells produce electricity from hydrogen and oxygen and can be powered by a number of sources, including renewables. Biomass power systems use biomass feedstocks such as wood waste or methane from animal waste or other sources to generate electricity. Biomass resources can also be used in direct heat and combined heat and power applications.

457

GridLab Power Distribution System Simulation | Open Energy Information  

Open Energy Info (EERE)

GridLab Power Distribution System Simulation GridLab Power Distribution System Simulation Jump to: navigation, search Tool Summary Name: GridLab Power Distribution System Simulation Agency/Company /Organization: Pacific Northwest National Laboratory Sector: Energy Focus Area: Grid Assessment and Integration Phase: Evaluate Options Topics: Pathways analysis User Interface: Desktop Application Website: www.gridlabd.org/ Cost: Free OpenEI Keyword(s): EERE tool Language: English References: GridLAB-D Simulation Software[1] Examine in detail the interplay of every part of a distribution system with every other part of the system. GridLAB-D(tm) is a new power distribution system simulation and analysis tool that provides valuable information to users who design and operate distribution systems, and to utilities that wish to take advantage of the

458

A new PowerPC microprocessor for low power computing systems  

Science Conference Proceedings (OSTI)

A new PowerPC microprocessor is designed for desktop companions and high end embedded multimedia applications such as high performance video games with graphics intensive operations. It features a low power consumption of 1.2 watts at 66 MHz at 3.3 volts. ... Keywords: 0.5 micron, 66 MHz, CMOS integrated circuits, CMOS technology, PowerPC microprocessor, data caches, desktop companions, graphics intensive operations, high end embedded multimedia applications, low power computing systems, low power consumption, microprocessor chips, video games

D. Ogden; B. Kuttanna; A. J. Loper; S. Mallick; M. Putrino

1995-03-01T23:59:59.000Z

459

Energy storage and power conditioning aspects of photovoltaic solar power systems. Volume I. First quarterly report  

SciTech Connect

Solar energy may be utilized as thermal energy or converted into electricity by solar cells. ERDA's National Photovoltaic Conversion Program is concerned with this latter approach and is currently sponsoring industrial programs for photovoltaic systems and devices. In one such program, Spectrolab, Inc., is charged with performing conceptual design and analysis of three photovoltaic solar power systems. The sizes of these three systems will cover the requirements of residential, commercial and electric utility central station applications. In addition to a solar cell array, photovoltaic power systems must also include an energy storage system to enable operation during periods of low insolation and a power conditioning system to control the dc power from the array and convert it into an ac waveshape compatible with existing electrical equipment. The Scientific Development Operation of Bechtel Corporation is participating in the Spectrolab program by compiling and studying data on the energy storage and power conditioning aspects of all three photovoltaic solar power systems and by the conceptual design of the system for electric utility central station applications. The results of the energy storage and power conditioning study effort are presented in this report. (W.D.M.)

1975-10-01T23:59:59.000Z

460

Energy storage and power conditioning aspects of photovoltaic solar power systems. Volume I. First quarterly report  

DOE Green Energy (OSTI)

Solar energy may be utilized as thermal energy or converted into electricity by solar cells. ERDA's National Photovoltaic Conversion Program is concerned with this latter approach and is currently sponsoring industrial programs for photovoltaic systems and devices. In one such program, Spectrolab, Inc., is charged with performing conceptual design and analysis of three photovoltaic solar power systems. The sizes of these three systems will cover the requirements of residential, commercial and electric utility central station applications. In addition to a solar cell array, photovoltaic power systems must also include an energy storage system to enable operation during periods of low insolation and a power conditioning system to control the dc power from the array and convert it into an ac waveshape compatible with existing electrical equipment. The Scientific Development Operation of Bechtel Corporation is participating in the Spectrolab program by compiling and studying data on the energy storage and power conditioning aspects of all three photovoltaic solar power systems and by the conceptual design of the system for electric utility central station applications. The results of the energy storage and power conditioning study effort are presented in this report. (W.D.M.)

Not Available

1975-10-01T23:59:59.000Z

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