National Library of Energy BETA

Sample records for future power systems

  1. Future Power Systems 21 - The Smart Customer | Department of...

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

    Future Power Systems 21 - The Smart Customer Future Power Systems 21 - The Smart Customer Future Power Systems 21 - The Smart Customer: From Future Power Systems (FPS) articles 18...

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

    Energy Savers [EERE]

    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,...

  3. Power Systems Engineering Research Center Renewable Electricity Futures

    E-Print Network [OSTI]

    Van Veen, Barry D.

    Power Systems Engineering Research Center Renewable Electricity Futures Trieu Mai Electricity of the extent to which renewable energy supply can meet the electricity demands of the contiguous United States renewable electricity generation levels: from 30% up to 90% (focusing on 80%) of all U.S. electricity

  4. Power Systems of the Future: A 21st Century Power Partnership Thought Leadership Report (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01

    Powerful trends in technology, policy environments, financing, and business models are driving change in power sectors globally. In light of these trends, the question is no longer whether power systems will be transformed, but rather how these transformations will occur. Power Systems of the Future, a thought leadership report from the 21st Century Power Partnership, explores these pathways explores actions that policymakers and regulators can take to encourage desired power system outcomes.

  5. Middle Eastern power systems; Present and future developments

    SciTech Connect (OSTI)

    Not Available

    1992-06-01

    Middle Eastern Power systems have evolved independently of each other over many decades. The region covers a wide geographical area of over 4 million square kilometers with an estimated population in 1990 of over 120 million people. This paper discusses the present status and future power system developments in the Middle East with emphasis on the Mashrequ Arab Countries (MAC). MAC consists of Egypt, Iraq, Jordan, Lebanon, Syria, Yemen, and the six Gulf Cooperation Council (GCC) countries, namely, Bahrain, Kuwait, Qatar, Saudi Arabia, Oman, and the United Arab Emirates (UAE). Interconnections within MAC and possible extensions to Turkey, Europe, and Central Africa are discussed. A common characteristic of the MAC power systems is that they are all operated by government or semi-government bodies. The energy resources in the region are varied. Countries such as Iraq, Egypt, and Syria have significant hydro power resources. On the other hand, the GCC countries and Iraq have abundant fossil fuel reserves.

  6. pahwa@ksu.edu Holonic Multi-agent Control of Power Distribution Systems of the Future

    E-Print Network [OSTI]

    Singh, Gurdip

    SUMMARY Power distribution systems (PDS) of the future will have homes with smart meters to monitor energy consumption, on-site grid-connected solar or wind generation, battery storage, and plug-in vehicles. The feeders will have advanced power electronic switching devices to control the system, sensors at strategic

  7. Preventing Future Blackouts by Means of Enhanced Electric Power Systems Control: From

    E-Print Network [OSTI]

    Preventing Future Blackouts by Means of Enhanced Electric Power Systems Control: From Complexity that re- semble the blackout of August 2003. Also, the potential for efficient use of the resources during--Advanced control, complex large-scale dynamical systems, electric power blackouts, electricity restructuring

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

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-inPPLforLDRD Report11, SolarMat 4" | Department ofMotors |FurnacesFuture

  9. Microsoft Word - Future Power Systems 21 - The Smart Customer...

    Office of Environmental Management (EM)

    systems) might wish to do when faced with sequences of rising and falling tariff prices on a daily basis. This needs to encompass preset time of day, real time only time of...

  10. Power Systems of the Future: A 21st Century Power Partnership Thought Leadership Report

    SciTech Connect (OSTI)

    Zinaman, O.; Miller, M.; Adil, A.; Arent, D.; Cochran, J.; Vora, R.; Aggarwal, S.; Bipath, M.; Linvill, C.; David, A.; Kauffman, R.; Futch, M.; Villanueva Arcos, E.; Valenzuela, J. M.; Martinot, E.; Bazilian, M.; Pillai, R. K.

    2015-02-01

    This report summarizes key forces driving transformation in the power sector around the world, presents a framework for evaluating decisions regarding extent and pace of change, and defines pathways for transformation. Powerful trends in technology, policy environments, financing, and business models are driving change in power sectors globally. In light of these trends, the question is no longer whether power systems will be transformed, but rather how these transformations will occur. Three approaches to policy and technology decision-making can guide these transformations: adaptive, reconstructive, and evolutionary. Within these approaches, we explore the five pathways that have emerged as viable models for power system transformation.

  11. FUTURE POWER GRID INITIATIVE Next Generation Network

    E-Print Network [OSTI]

    FUTURE POWER GRID INITIATIVE Next Generation Network Simulations for Power System Applications resources. To operate the future power grids, these will need to take into account: » the integration (509) 372-6575 jason.fuller@pnnl.gov ABOUT FPGI The Future Power Grid Initiative (FPGI) will deliver

  12. FUTURE POWER GRID INITIATIVE GridOPTICSTM

    E-Print Network [OSTI]

    FUTURE POWER GRID INITIATIVE GridOPTICSTM : A Software Framework for Power System Operations technologies needed to support the operations and planning of the future power grid » provide a framework to the GridPACK numerical library that is being developed in the Future Power Grid Initiative APPROACH

  13. The DOE Wide Area Measurement System (WAMS) Project -- Demonstration of dynamic information technology for the future power system

    SciTech Connect (OSTI)

    Mittelstadt, W.A. [Bonneville Power Administration (United States); Hauer, J.F. [Pacific Northwest Lab., Richland, WA (United States); Krause, P.E.; Wilson, R.E. [Western Power Administration (United States); Overholt, P.N. [USDOE (United States); Rizy, D.T. [Oak Ridge National Lab., TN (United States)

    1995-12-31

    In 1989 the Bonneville Power Administration (BPA) and the Western Power Administration (WAPA) joined the US Department of Energy (DOE) in an assessment of longer-term research and development needs for future electric power system operation. The effort produced a progressively sharper vision of a future power system in which enhanced control and operation are the primary means for serving new customer demands in an environment characterized by increased competition, a wider range of services and vendors, and much narrower operating margins. Technology and infrastructure for real time access to wide area dynamic information were identified as critical path elements in realizing that vision. In 1995 the DOE accordingly launched the Wide Area Measurement System (WAMS) Project jointly with the two Power Marketing Administrations (PMAs) to address these issues in a practical operating environment the western North America power system. The Project draws upon many years of PMA effort and related collaboration among the western utilities, plus an expanding infrastructure that includes regionally involved contractors, universities, and National Laboratories plus linkages to the Electric Power Research Institute (EPRI).

  14. The DOE Wide Area Measurement System (WAMS) Project: Demonstration of dynamic information technology for the future power system

    SciTech Connect (OSTI)

    Mittelstadt, W.A. [USDOE Bonneville Power Administration, Portland, OR (United States); Krause, P.E.; Wilson, R.E. [USDOE Western Area Power Administration, Golden, CO (United States); Overholt, P.N. [USDOE, Washington, DC (United States); Sobajic, D.J. [Electric Power Research Inst., Palo Alto, CA (United States); Hauer, J.F. [Pacific Northwest National Lab., Richland, WA (United States); Rizy, D.T. [Oak Ridge National Lab., TN (United States)

    1996-07-01

    In 1989 the Bonneville Power Administration (BPA) and the Western Area Power Administration (WAPA) joined the US Department of Energy (DOE) in an assessment of longer-term research and development needs for future electric power system operation. The effort produced a progressively sharper vision of a future power system in which enhanced control and operation are the primary means for serving new customer demands, in an environment where increased competition, a wider range of services and vendors, and much narrower operating margins all contribute to increased system efficiencies and capacity. Technology and infrastructure for real time access to wide area dynamic information were identified as critical path elements in realizing that vision. In 1995 the DOE accordingly launched the Wide Area Measurement System (WAMS) Project jointly with the two Power Marketing Administrations (PMAs) to address these issues in a practical operating environment--the western North America power system. The Project draws upon many years of PMA effort and related collaboration among the western utilities, plus an expanding infrastructure that includes regionally involved contractors, universities, and National Laboratories plus linkages to the Electric Power Research Institute (EPRI). The WAMS project also brings added focus and resources to the evolving Western System Dynamic Information Network, or WesDINet. This is a collective response of the Western Systems Coordinating Council (WSCC) member utilities to their shared needs for direct information about power system characteristics, model fidelity, and operational performance. The WAMS project is a key source of the technology and backbone communications needed to make WesDINet a well integrated, cost effective enterprise network demonstrating the role of dynamic information technology in the emerging utility environment.

  15. PNNL Future Power Grid Initiative-developed GridOPTICS Software System (GOSS)

    SciTech Connect (OSTI)

    2014-11-03

    The power grid is changing and evolving. One aspect of this change is the growing use of smart meters and other devices, which are producing large volumes of useful data. However, in many cases, the data can’t be translated quickly into actionable guidance to improve grid performance. There's a need for innovative tools. The GridOPTICS(TM) Software System, or GOSS, developed through PNNL's Future Power Grid Initiative, is open source and became publicly available in spring 2014. The value of this middleware is that it easily integrates grid applications with sources of data and facilitates communication between them. Such a capability provides a foundation for developing a range of applications to improve grid management.

  16. Power Systems of the Future: A 21st Century Power Partnership Thought Leadership Report

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesseworkSURVEYI/OPerformancePi Day PiSafetyContact Power Services >start

  17. FUTURE POWER GRID INITIATIVE Future Power Grid

    E-Print Network [OSTI]

    of all 16 machines damped quickly ­ improved frequency performance » AGC ensures tie line power flows on the Electricity Infrastructure Operations Center (EIOC), the Pacific Northwest National Laboratory's (PNNL) national electric grid research facility, the FPGI will advance the science and develop the technologies

  18. The future of GPS-based electric power system measurements, operation and control

    SciTech Connect (OSTI)

    Rizy, D.T. [Oak Ridge National Lab., TN (United States); Wilson, R.E. [Western Area Power Administration, Golden, CO (United States); Martin, K.E.; Litzenberger, W.H. [Bonneville Power Administration, Portland, OR (United States); Hauer, J.F. [Pacific Northwest National Lab., Richland, WA (United States); Overholt, P.N. [Dept. of Energy, Washington, DC (United States); Sobajic, D.J. [Electric Power Research Inst., Palo Alto, CA (United States)

    1998-11-01

    Much of modern society is powered by inexpensive and reliable electricity delivered by a complex and elaborate electric power network. Electrical utilities are currently using the Global Positioning System-NAVSTAR (GPS) timekeeping to improve the network`s reliability. Currently, GPS synchronizes the clocks on dynamic recorders and aids in post-mortem analysis of network disturbances. Two major projects have demonstrated the use of GPS-synchronized power system measurements. In 1992, the Electric Power Research Institute`s (EPRI) sponsored Phase Measurements Project used a commercially available Phasor Measurements Unit (PMU) to collect GPS-synchronized measurements for analyzing power system problems. In 1995, Bonneville Power Administration (BPA) and Western Area Power Administration (WAPA) under DOE`s and EPRI`s sponsorship launched the Wide Area Measurements (WAMS) project. WAMS demonstrated GPS-synchronized measurements over a large area of their power networks and demonstrated the networking of GPS-based measurement systems in BPA and WAPA. The phasor measurement technology has also been used to conduct dynamic power system tests. During these tests, a large dynamic resistor was inserted to simulate a small power system disturbance.

  19. FUTURE POWER GRID INITIATIVE Linear Algebra Solvers and

    E-Print Network [OSTI]

    FUTURE POWER GRID INITIATIVE Linear Algebra Solvers and Associated Matrix-Vector Kernels for Power of power grid systems. As the future power grid system becomes more complex and as more model variability are used to accurately represent the future system, determining the stability security margins will become

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

    Office of Energy Efficiency and Renewable Energy (EERE)

    This volume focuses on the role of variable renewable generation in creating challenges to the planning and operations of power systems and the expansion of transmission to deliver electricity from remote resources to load centers. The technical and institutional changes to power systems that respond to these challenges are, in many cases, underway, driven by the economic benefits of adopting more modern communication, information, and computation technologies that offer significant operational cost savings and improved asset utilization. While this volume provides background information and numerous references, the reader is referred to the literature for more complete tutorials.

  1. Integration of Renewable Energy Sources in Future Power Systems: The Role of Storage

    E-Print Network [OSTI]

    Weitemeyer, Stefan; Vogt, Thomas; Agert, Carsten

    2014-01-01

    Integrating a high share of electricity from non-dispatchable Renewable Energy Sources in a power supply system is a challenging task. One option considered in many studies dealing with prospective power systems is the installation of storage devices to balance the fluctuations in power production. However, it is not yet clear how soon storage devices will be needed and how the integration process depends on different storage parameters. Using long-term solar and wind energy power production data series, we present a modelling approach to investigate the influence of storage size and efficiency on the pathway towards a 100% RES scenario. Applying our approach to data for Germany, we found that up to 50% of the overall electricity demand can be met by an optimum combination of wind and solar resources without both curtailment and storage devices if the remaining energy is provided by sufficiently flexible power plants. Our findings show further that the installation of small, but highly efficient storage devic...

  2. FUTURE POWER GRID INITIATIVE Decision Support for Future

    E-Print Network [OSTI]

    FUTURE POWER GRID INITIATIVE Decision Support for Future Power Grid Organizations OBJECTIVE Northwest National Laboratory (509) 371-6607 angela.dalton@pnnl.gov ABOUT FPGI The Future Power Grid a more secure, efficient and reliable future grid. Building on the Electricity Infrastructure Operations

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

    SciTech Connect (OSTI)

    Milligan, Michael; Ela, Erik; Hein, Jeff; Schneider, Thomas; Brinkman, Gregory; Denholm, Paul

    2012-06-15

    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). Learn more at the RE Futures website. http://www.nrel.gov/analysis/re_futures/

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

    SciTech Connect (OSTI)

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

    2012-06-01

    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).

  5. Power Systems and Communications Infrastructures for the future, Beijing, September 2002 AN INITIAL COMPLEX SYSTEMS ANALYSIS OF THE RISKS OF

    E-Print Network [OSTI]

    COMPLEX SYSTEMS ANALYSIS OF THE RISKS OF BLACKOUTS IN POWER TRANSMISSION SYSTEMS I. Dobson D. E. Newman B of blackout risk. Indeed, the mitigation of failures in complex systems needs to be approached with care. To motivate our work we consider the statistics of series of blackouts. The North American Electrical

  6. Thermoelectric Power Generation System with Loop Thermosyphon in Future High Efficiency Hybrid Vehicles

    Broader source: Energy.gov [DOE]

    This project discusses preliminary experimental results to find how thermoelectrics can be applied ot future hybrid vehicles and the optimum design of such equipment using heat pipes

  7. Catalog of DC Appliances and Power Systems

    SciTech Connect (OSTI)

    Garbesi, Karina; Vossos, Vagelis; Shen, Hongxia

    2010-10-13

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

  8. Power system

    DOE Patents [OSTI]

    Hickam, Christopher Dale (Glasford, IL)

    2008-03-18

    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.

  9. FUTURE POWER GRID INITIATIVE A Statistical State Prediction

    E-Print Network [OSTI]

    FUTURE POWER GRID INITIATIVE A Statistical State Prediction Methodology to Improve Reliability and Efficiency of Power Grid Simulation OBJECTIVE This project aims to develop a short-term prediction in a power system state predictor at grid level, which cannot only predict power system behaviors, but also

  10. Future Prospects for Nuclear Power after Fukushima

    E-Print Network [OSTI]

    Goldberg, Bennett

    Future Prospects for Nuclear Power after Fukushima Nuclear is a highintensity energy source at the FukushimaDaiichi nuclear power plant in Japan has changed the perception of nuclear as a safe energy source as the next generation of Light Water Reactors. We will also discuss the future prospects of nuclear power

  11. Thermoelectric Power Generation System with Loop Thermosyphon...

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

    Generation System with Loop Thermosyphon in Future High Efficiency Hybrid Vehicles Thermoelectric Power Generation System with Loop Thermosyphon in Future High Efficiency Hybrid...

  12. FUTURE POWER GRID INITIATIVE A Statistical State Prediction

    E-Print Network [OSTI]

    FUTURE POWER GRID INITIATIVE A Statistical State Prediction Methodology to Improve Reliability the system future states, the project will enable proactive operation to improve the operational reliability the uncertainty in the future brought in by load, variable generation, market behaviors. This study will result

  13. FUTURE POWER GRID INITIATIVE GridOPTICSTM Power Networking,

    E-Print Network [OSTI]

    FUTURE POWER GRID INITIATIVE GridOPTICSTM Power Networking, Equipment, and Technology (powerNET) Testbed OBJECTIVE A lot of interest in research, improvements, and testing surrounds the power grid to bear on the challenges of the power grid Therefore, a community resource is needed to enable needed

  14. Physics of laser fusion. Volume IV. The future development of high-power solid-state laser systems

    SciTech Connect (OSTI)

    Emmett, J.L.; Krupke, W.F.; Trenholme, J.B.

    1982-11-01

    Solid state lasers, particularly neodymium glass systems, have undergone intensive development during the last decade. In this paper, we review solid state laser technology in the context of high-peak-power systems for inertial confinement fusion. Specifically addressed are five major factors: efficiency, wavelength flexibility, average power, system complexity, and cost; these factors today limit broader application of the technology. We conclude that each of these factors can be greatly improved within current fundamental physical limits. We further conclude that the systematic development of new solid state laser madia, both vitreous and crystalline, should ultimately permit the development of wavelength-flexible, very high average power systems with overall efficiencies in the range of 10 to 20%.

  15. FUTURE POWER GRID INITIATIVE Intelligent Networked Sensors

    E-Print Network [OSTI]

    FUTURE POWER GRID INITIATIVE Intelligent Networked Sensors Capable of Autonomous, Adaptive from the rest of the power grid and reconnect and synchronize without loss of functionality FOCUS AREA Power Grid Initiative (FPGI) will deliver next-generation concepts and tools for grid operation

  16. Development of standardized air-blown coal gasifier/gas turbine concepts for future electric power systems

    SciTech Connect (OSTI)

    Blough, E.; Russell, W.; Leach, J.W.

    1990-08-01

    Computer models have been developed for evaluating conceptual designs of integrated coal gasification combined cycle power plants. An overall system model was developed for performing thermodynamic cycle analyses, and detailed models were developed for predicting performance characteristics of fixed bed coal gasifiers and hot gas clean up subsystem components. The overall system model performs mass and energy balances and does chemical equilibrium analyses to determine the effects of changes in operating conditions, or to evaluate proposed design changes. An existing plug flow model for fixed bed gasifiers known as the Wen II model was revised and updated. Also, a spread sheet model of zinc ferrite sulfur sorbent regeneration subsystem was developed. Parametric analyses were performed to determine how performance depends on variables in the system design. The work was done to support CRS Sirrine Incorporated in their study of standardized air blown coal gasifier gas turbine concepts.

  17. Union Training Future Electricians in Solar Power

    Broader source: Energy.gov [DOE]

    Electricians in Indiana believe solar power is the future, and they are preparing for it. The International Brotherhood of Electrical Workers Local 725 (IBEW 725) in Terre Haute, Ind., purchased 60 solar panels and plans to train its members in solar installation.

  18. MI high power operation and future plans

    SciTech Connect (OSTI)

    Kourbanis, Ioanis; /Fermilab

    2008-09-01

    Fermilab's Main Injector on acceleration cycles to 120 GeV has been running a mixed mode operation delivering beam to both the antiproton source for pbar production and to the NuMI[1] target for neutrino production since 2005. On January 2008 the slip stacking process used to increase the beam to the pbar target was expanded to include the beam to the NuMI target increasing both the beam intensity and power. The current high power MI operation will be described along with the near future plans.

  19. Powering the Future | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested PartiesBuilding energyDepartment ofofWednesday, April 29,Powering the Future

  20. FUTURE POWER GRID INITIATIVE Market Design Analysis Tool

    E-Print Network [OSTI]

    FUTURE POWER GRID INITIATIVE Market Design Analysis Tool OBJECTIVE Power market design plays to efficiently attain a desired future state of the power grid APPROACH The project will develop two mechanisms rules to attain a desired future state of power grid. » use MDI to modify the market clearing mechanism

  1. Power management system

    DOE Patents [OSTI]

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

    2007-10-02

    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.

  2. Development of standardized air-blown coal gasifier/gas turbine concepts for future electric power systems

    SciTech Connect (OSTI)

    Sadowski, R.S.; Brown, M.J.; Hester, J.C.; Harriz, J.T.; Ritz, G.J.

    1991-02-01

    The objective of this study is to develop standardized air blown fixed bed gasification hot gas cleanup integrated gasifier combined cycle (IGCC) systems.

  3. Coal and nuclear power: Illinois' energy future

    SciTech Connect (OSTI)

    Not Available

    1982-01-01

    This conference was sponsored by the Energy Resources Center, University of Illinois at Chicago; the US Department of Energy; the Illinois Energy Resources Commission; and the Illinois Department of Energy and Natural Resources. The theme for the conference, Coal and Nuclear Power: Illinois' Energy Future, was based on two major observations: (1) Illinois has the largest reserves of bituminous coal of any state and is surpassed in total reserves only by North Dakota, and Montana; and (2) Illinois has made a heavy commitment to the use of nuclear power as a source of electrical power generation. Currently, nuclear power represents 30% of the electrical energy produced in the State. The primary objective of the 1982 conference was to review these two energy sources in view of the current energy policy of the Reagan Administration, and to examine the impact these policies have on the Midwest energy scene. The conference dealt with issues unique to Illinois as well as those facing the entire nation. A separate abstract was prepared for each of the 30 individual presentations.

  4. Solar powered desalination system

    E-Print Network [OSTI]

    Mateo, Tiffany Alisa

    2011-01-01

    done using photovoltaic systems or by a photoelectrochemicalprocess. Of course, photovoltaic systems convert sunlightwill be powered by the photovoltaic system. Also, a typical

  5. FUTURE POWER GRID INITIATIVE Modeling of Distributed Energy

    E-Print Network [OSTI]

    FUTURE POWER GRID INITIATIVE Modeling of Distributed Energy Resources in the Smart Grid OBJECTIVE can be used in the studies for the design, operation and control of the future smart grid. Our project National Laboratory (509) 375-2235 shuai.lu@pnnl.gov ABOUT FPGI The Future Power Grid Initiative (FPGI

  6. FUTURE POWER GRID INITIATIVE GridPACK: Grid Parallel Advanced

    E-Print Network [OSTI]

    FUTURE POWER GRID INITIATIVE GridPACK: Grid Parallel Advanced Computational Kernels OBJECTIVE The U Pacific Northwest National Laboratory (509) 375-3899 bruce.palmer@pnnl.gov ABOUT FPGI The Future Power and ensure a more secure, efficient and reliable future grid. Building on the Electricity Infrastructure

  7. Systems for Electrical Power from Coproduced and Low Temperature...

    Broader source: Energy.gov (indexed) [DOE]

    Systems for Electrical Power from Coproduced and Low Temperature Geothermal Resources includes background, results and discussion, future plans and conclusion....

  8. This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. IEEE TRANSACTIONS ON POWER SYSTEMS 1

    E-Print Network [OSTI]

    Dobson, Ian

    This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. IEEE TRANSACTIONS ON POWER SYSTEMS 1 Investment Planning. Sandia is a multiprogram laboratory oper- ated by Sandia Corporation, a Lockheed Martin Company

  9. Future Computing Platforms for Science in a Power Constrained Era

    E-Print Network [OSTI]

    David Abdurachmanov; Peter Elmer; Giulio Eulisse; Robert Knight

    2015-07-28

    Power consumption will be a key constraint on the future growth of Distributed High Throughput Computing (DHTC) as used by High Energy Physics (HEP). This makes performance-per-watt a crucial metric for selecting cost-efficient computing solutions. For this paper, we have done a wide survey of current and emerging architectures becoming available on the market including x86-64 variants, ARMv7 32-bit, ARMv8 64-bit, Many-Core and GPU solutions, as well as newer System-on-Chip (SoC) solutions. We compare performance and energy efficiency using an evolving set of standardized HEP-related benchmarks and power measurement techniques we have been developing. We evaluate the potential for use of such computing solutions in the context of DHTC systems, such as the Worldwide LHC Computing Grid (WLCG).

  10. Future Computing Platforms for Science in a Power Constrained Era

    E-Print Network [OSTI]

    Abdurachmanov, David; Eulisse, Giulio; Knight, Robert

    2015-01-01

    Power consumption will be a key constraint on the future growth of Distributed High Throughput Computing (DHTC) as used by High Energy Physics (HEP). This makes performance-per-watt a crucial metric for selecting cost-efficient computing solutions. For this paper, we have done a wide survey of current and emerging architectures becoming available on the market including x86-64 variants, ARMv7 32-bit, ARMv8 64-bit, Many-Core and GPU solutions, as well as newer System-on-Chip (SoC) solutions. We compare performance and energy efficiency using an evolving set of standardized HEP-related benchmarks and power measurement techniques we have been developing. We evaluate the potential for use of such computing solutions in the context of DHTC systems, such as the Worldwide LHC Computing Grid (WLCG).

  11. Power Systems Past Projects

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    loop and its six associated substations. An upgrade of the INL loop, designed by Power Systems personnel, was completed in 1997. This project consists of transmission line...

  12. Crowd-powered systems

    E-Print Network [OSTI]

    Bernstein, Michael Scott

    2012-01-01

    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 ...

  13. FUTURE POWER GRID INITIATIVE Actionable Visualization Tools for

    E-Print Network [OSTI]

    » integrate information from domains external to the power industry (e.g., weather) with power grid of the power grid: e.g., weather, political/social, cyber, etc. This integrated functionality is supported, efficient and reliable future grid. Building on the Electricity Infrastructure Operations Center (EIOC

  14. FUTURE POWER GRID INITIATIVE An Intelligent Agent Platform

    E-Print Network [OSTI]

    FUTURE POWER GRID INITIATIVE VOLTTRONTM : An Intelligent Agent Platform for the Smart Grid Two-way Power Flows n Decentralized Control To Support Micro-Grids And Islanding n Enable Load, not developed past simulation, and/or do not fit the requirements of the power grid. VOLTTRON has become

  15. This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. IEEE TRANSACTIONS ON POWER SYSTEMS 1

    E-Print Network [OSTI]

    Egerstedt, Magnus

    systems. To overcome these challenges, it is envisioned that future, smart energy grids will be populated

  16. Solar powered desalination system

    E-Print Network [OSTI]

    Mateo, Tiffany Alisa

    2011-01-01

    Solar Energy Center USA, Blythe, CA Solar electric power plant,Solar Wind Total Northwest Imports Southwest Imports Total Energy System Table 1.18: Largest PV Power PlantsPlants……………………………………………………32 Table 1.19: Solar Desalination Systems…………………………………………………34 Table 1.20: Energy

  17. Large-Scale Data Challenges in Future Power Grids

    SciTech Connect (OSTI)

    Yin, Jian; Sharma, Poorva; Gorton, Ian; Akyol, Bora A.

    2013-03-25

    This paper describes technical challenges in supporting large-scale real-time data analysis for future power grid systems and discusses various design options to address these challenges. Even though the existing U.S. power grid has served the nation remarkably well over the last 120 years, big changes are in the horizon. The widespread deployment of renewable generation, smart grid controls, energy storage, plug-in hybrids, and new conducting materials will require fundamental changes in the operational concepts and principal components. The whole system becomes highly dynamic and needs constant adjustments based on real time data. Even though millions of sensors such as phase measurement units (PMUs) and smart meters are being widely deployed, a data layer that can support this amount of data in real time is needed. Unlike the data fabric in cloud services, the data layer for smart grids must address some unique challenges. This layer must be scalable to support millions of sensors and a large number of diverse applications and still provide real time guarantees. Moreover, the system needs to be highly reliable and highly secure because the power grid is a critical piece of infrastructure. No existing systems can satisfy all the requirements at the same time. We examine various design options. In particular, we explore the special characteristics of power grid data to meet both scalability and quality of service requirements. Our initial prototype can improve performance by orders of magnitude over existing general-purpose systems. The prototype was demonstrated with several use cases from PNNL’s FPGI and was shown to be able to integrate huge amount of data from a large number of sensors and a diverse set of applications.

  18. Water Power for a Clean Energy Future

    SciTech Connect (OSTI)

    2013-04-12

    This document describes some of the accomplishments of the Department of Energy Water Power Program, and how those accomplishments are supporting the advancement of renewable energy generated using hydropower technologies and marine and hydrokinetic technologies.

  19. FUTURE POWER GRID INITIATIVE Scalable Sensor Data

    E-Print Network [OSTI]

    to the characteristic power grid data and application » Distributed over multiple machines for further scalability on the Electricity Infrastructure Operations Center (EIOC), the Pacific Northwest National Laboratory's (PNNL) national electric grid research facility, the FPGI will advance the science and develop the technologies

  20. Power System Dispatcher

    Broader source: Energy.gov [DOE]

    As a Power System Dispatcher, you will be working in the Operations Center in Springfield, Missouri as part of the Division of Scheduling & Operations, Office of Corporate Operations. You will...

  1. FUTURE POWER GRID INITIATIVE Real-time High-Performance

    E-Print Network [OSTI]

    #12;» System will support time-critical power grid applications (PMU data rate: every 30ms) » Flexible

  2. Power Systems Development Facility

    SciTech Connect (OSTI)

    Southern Company Services

    2009-01-31

    In support of technology development to utilize coal for efficient, affordable, and environmentally clean power generation, the Power Systems Development Facility (PSDF), located in Wilsonville, Alabama, has routinely demonstrated gasification technologies using various types of coals. The PSDF is an engineering scale demonstration of key features of advanced coal-fired power systems, including a Transport Gasifier, a hot gas particulate control device, advanced syngas cleanup systems, and high-pressure solids handling systems. This final report summarizes the results of the technology development work conducted at the PSDF through January 31, 2009. Twenty-one major gasification test campaigns were completed, for a total of more than 11,000 hours of gasification operation. This operational experience has led to significant advancements in gasification technologies.

  3. The Lebanese electric power system operational problems

    SciTech Connect (OSTI)

    Yehia, M.; Saidi, M.; Diab, H.; Kabalan, K. (American Univ., Beirut (Lebanon))

    1991-09-01

    This article deals with the analysis of the existing practical problems in the Lebanese electric power system and provides guidelines for future research and strategies for solving the operational problems which are now facing the system. These problems are partly due, first, to the socioeconomic situation in Lebanon after 14 years of a devastating war and second, to the particularity of the Lebanese system.

  4. The Future Role of the Bonneville Power Administration in Power Supply

    E-Print Network [OSTI]

    The Future Role of the Bonneville Power Administration in Power Supply INTRODUCTION The crown jewel. This federal hydropower is priced at cost and is sold by the Bonneville Power Administration primarily or requiring Bonneville to sell its power at market prices to benefit U.S. taxpayers as opposed to selling

  5. POWER GRID DYNAMICS: ENHANCING POWER SYSTEM OPERATION THROUGH PRONY ANALYSIS

    SciTech Connect (OSTI)

    Ray, C.; Huang, Z.

    2007-01-01

    Prony Analysis is a technique used to decompose a signal into a series consisting of weighted complex exponentials and promises to be an effi cient way of recognizing sensitive lines during faults in power systems such as the U.S. Power grid. Positive Sequence Load Flow (PSLF) was used to simulate the performance of a simple two-area-four-generator system and the reaction of the system during a line fault. The Dynamic System Identifi cation (DSI) Toolbox was used to perform Prony analysis and use modal information to identify key transmission lines for power fl ow adjustment to improve system damping. The success of the application of Prony analysis methods to the data obtained from PSLF is reported, and the key transmission line for adjustment is identifi ed. Future work will focus on larger systems and improving the current algorithms to deal with networks such as large portions of the Western Electricity Coordinating Council (WECC) power grid.

  6. Water Power for a Clean Energy Future (Fact Sheet), Wind and...

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

    Water Power for a Clean Energy Future (Fact Sheet), Wind and Water Power Program (WWPP) Water Power for a Clean Energy Future (Fact Sheet), Wind and Water Power Program (WWPP) This...

  7. Subsynchronous resonance in power systems

    SciTech Connect (OSTI)

    Anderson, P.M. (Power Math Associates, Inc. (US)); Agrawal, B.L. (Arizona Public Service Co., Phoenix, AZ (United States)); Van Ness, J.E. (Northwestern Univ., Evanston, IL (United States). Dept. of Electrical Engineering and Computer Science)

    1990-01-01

    This book provides an introduction to subsynchronous resonance in power systems and includes material on system modeling, system parameters, and system analysis.

  8. Power line detection system

    DOE Patents [OSTI]

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

    1994-09-27

    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.

  9. Remote hybrid power systems

    SciTech Connect (OSTI)

    Barley, C.D.; Winn, C.B. [Colorado State Univ., Fort Collins, CO (United States)

    1997-12-31

    This paper provides an overview of the emerging technology of remote, stand-alone electrical power systems featuring a renewable source (wind or photovoltaics [PV]) as well as a diesel generator, with or without an energy storage device. Other stand-alone power systems are discussed briefly, mainly to emphasize the domain of hybrid systems. The history of hybrid systems is reviewed, beginning with the first wind/diesel system in the late 1970s. Other topics include issues arising from the characteristics of diesel engine/generator sets; simple vs. complex systems; the various energy storage technologies that have been used or proposed; control strategies; modeling; optimization; and some {open_quotes}nuts & bolts{close_quotes} details. The bibliography includes over 130 references which are cited throughout the topical discussions. It is concluded that the technical feasibility of hybrid systems has been demonstrated through many prototype installations, and that areas for further improvements include higher reliability and more economical energy storage devices. 139 refs., 7 figs., 1 tab.

  10. High power connection system

    DOE Patents [OSTI]

    Schaefer, Christopher E. (Warren, OH); Beer, Robert C. (Noblesville, IN); McCall, Mark D. (Youngstown, OH)

    2000-01-01

    A high power connection system adapted for automotive environments which provides environmental and EMI shielding includes a female connector, a male connector, and a panel mount. The female connector includes a female connector base and a snap fitted female connector cover. The male connector includes a male connector base and a snap fitted male connector cover. The female connector base has at least one female power terminal cavity for seatably receiving a respective female power terminal. The male connector base has at least one male power terminal cavity for seatably receiving a respective male power terminal. The female connector is covered by a cover seal and a conductive shroud. A pair of lock arms protrude outward from the front end of the male connector base, pass through the panel mount and interface with a lever of a lever rotatably connected to the shroud to thereby mechanically assist mating of the male and female connectors. Safety terminals in the male and female connectors provide a last-to-connect-first-to-break connection with an HVIL circuit.

  11. Use of experience curves to estimate the future cost of power plants with CO2 capture

    E-Print Network [OSTI]

    Rubin, Edward S.; Yeh, Sonia; Antes, Matt; Berkenpas, Michael; Davison, John

    2007-01-01

    2004. Experience curves for power plant emission controlassessments of fossil fuel power plants with CO 2 capturethe future cost of power plants with CO 2 capture Edward S.

  12. Power System Dispatcher (Technical Writer)

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Rocky Mountain Region Power System Operations Operations Reliability and Balancing...

  13. COMBINED HEAT AND POWER Effective Energy Solutions for a Sustainable Future

    E-Print Network [OSTI]

    Pennycook, Steve

    COMBINED HEAT AND POWER Effective Energy Solutions for a Sustainable Future December 1, 2008 #12 Efficiency and Renewable Energy COMBINED HEAT AND POWER Effective Energy Solutions for a Sustainable Future).................... Suzanne Watson American Public Power Association (APPA)........................................... Mike

  14. Solar powered desalination system

    E-Print Network [OSTI]

    Mateo, Tiffany Alisa

    2011-01-01

    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

  15. Power control system and method

    DOE Patents [OSTI]

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

    2008-02-19

    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.

  16. Power control system and method

    DOE Patents [OSTI]

    Steigerwald, Robert Louis; Anderson, Todd Alan

    2006-11-07

    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.

  17. Concept for Management of the Future Electricity System (Smart...

    Open Energy Info (EERE)

    Concept for Management of the Future Electricity System (Smart Grid Project) Jump to: navigation, search Project Name Concept for Management of the Future Electricity System...

  18. Power Systems Development Facility

    SciTech Connect (OSTI)

    None

    2003-07-01

    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.

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

    Open Energy Info (EERE)

    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...

  20. Imagine energy and environment in alignment. Now that's a powerful future.

    E-Print Network [OSTI]

    Reif, John H.

    Imagine energy and environment in alignment. Now that's a powerful future. America's current energy country needs to transition to a new energy system. A transition of this magnitude typically takes decades, but we cannot afford to wait. To meet our nation's growing energy needs and the needs of our environment

  1. U.S. Electric Power Futures: Preliminary Results (Presentation)

    SciTech Connect (OSTI)

    Lopez, A.; Logan, J.; Mai, T.

    2012-08-01

    This presentation shows key findings of an effort to simulate the evolution of the U.S. power sector under a number of policy and technology scenarios using the Regional Energy Deployment System (ReEDS) Model.

  2. Catalog of DC Appliances and Power Systems

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01

    sited renewable energy market for the foreseeable future. Inup renewable energy systems increases in the future, chargerenewable energy sources [5]. If direct-DC has a future in

  3. Power Systems Group Home Page

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Systems Division Search APS ... Search Button About ASD General Information ASD Groups ESHQA Operations Argonne Home > Advanced Photon Source > Power Systems Group This page is...

  4. Development of standardized air-blown coal gasifier/gas turbine concepts for future electric power systems. Volume 1, Final report

    SciTech Connect (OSTI)

    Sadowski, R.S.; Brown, M.J.; Hester, J.C.; Harriz, J.T.; Ritz, G.J.

    1991-02-01

    The objective of this study is to develop standardized air blown fixed bed gasification hot gas cleanup integrated gasifier combined cycle (IGCC) systems.

  5. Shipboard condition based maintenance and integrated power system initiatives

    E-Print Network [OSTI]

    Barber, Darrin E. (Darrin Eugene)

    2011-01-01

    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 ...

  6. Solar powered desalination system

    E-Print Network [OSTI]

    Mateo, Tiffany Alisa

    2011-01-01

    are many solar photovoltaic power plants internationally andUSA, Blythe, CA Solar electric power plant, Blythe USA, SanTX Blue Wing solar electric power plant USA, Jacksonville,

  7. POWER SYSTEMS DEVELOPMENT FACILITY

    SciTech Connect (OSTI)

    Unknown

    2002-11-01

    This report discusses test campaign GCT4 of the Kellogg Brown & Root, Inc. (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 GCT4. GCT4 was planned as a 250-hour test run to continue characterization of the transport reactor using a blend of several Powder River Basin (PRB) coals and Bucyrus limestone from Ohio. The primary test objectives were: Operational Stability--Characterize reactor loop and PCD operations with short-term tests by varying coal-feed rate, air/coal ratio, riser velocity, solids-circulation rate, system pressure, and air distribution. Secondary objectives included the following: 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. Effects of Reactor Conditions on Synthesis Gas Composition--Evaluate the effect of air distribution, steam/coal ratio, solids-circulation rate, and reactor temperature on CO/CO{sub 2} ratio, synthesis gas Lower Heating Value (LHV), carbon conversion, and cold and hot gas efficiencies. Research Triangle Institute (RTI) Direct Sulfur Recovery Process (DSRP) Testing--Provide syngas in support of the DSRP commissioning. Loop Seal Operations--Optimize loop seal operations and investigate increases to previously achieved maximum solids-circulation rate.

  8. Power Systems Engineer | Princeton Plasma Physics Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    technical support and assistance on complicated Power System electrical, electronic and control systems. Knowledge of AC Power, power conversion, DC circuits, motors, power...

  9. Solar thermal power system

    DOE Patents [OSTI]

    Bennett, Charles L.

    2010-06-15

    A solar thermal power generator includes an inclined elongated boiler tube positioned in the focus of a solar concentrator for generating steam from water. The boiler tube is connected at one end to receive water from a pressure vessel as well as connected at an opposite end to return steam back to the vessel in a fluidic circuit arrangement that stores energy in the form of heated water in the pressure vessel. An expander, condenser, and reservoir are also connected in series to respectively produce work using the steam passed either directly (above a water line in the vessel) or indirectly (below a water line in the vessel) through the pressure vessel, condense the expanded steam, and collect the condensed water. The reservoir also supplies the collected water back to the pressure vessel at the end of a diurnal cycle when the vessel is sufficiently depressurized, so that the system is reset to repeat the cycle the following day. The circuital arrangement of the boiler tube and the pressure vessel operates to dampen flow instabilities in the boiler tube, damp out the effects of solar transients, and provide thermal energy storage which enables time shifting of power generation to better align with the higher demand for energy during peak energy usage periods.

  10. Water Power for a Clean Energy Future (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-03-01

    This fact sheet provides an overview of the U.S. Department of Energy's Wind and Water Power Program's water power research activities. Water power is the nation's largest source of clean, domestic, renewable energy. Harnessing energy from rivers, manmade waterways, and oceans to generate electricity for the nation's homes and businesses can help secure America's energy future. Water power technologies fall into two broad categories: conventional hydropower and marine and hydrokinetic technologies. Conventional hydropower facilities include run-of-the-river, storage, and pumped storage. Most conventional hydropower plants use a diversion structure, such as a dam, to capture water's potential energy via a turbine for electricity generation. Marine and hydrokinetic technologies obtain energy from waves, tides, ocean currents, free-flowing rivers, streams and ocean thermal gradients to generate electricity. The United States has abundant water power resources, enough to meet a large portion of the nation's electricity demand. Conventional hydropower generated 257 million megawatt-hours (MWh) of electricity in 2010 and provides 6-7% of all electricity in the United States. According to preliminary estimates from the Electric Power Resource Institute (EPRI), the United States has additional water power resource potential of more than 85,000 megawatts (MW). This resource potential includes making efficiency upgrades to existing hydroelectric facilities, developing new low-impact facilities, and using abundant marine and hydrokinetic energy resources. EPRI research suggests that ocean wave and in-stream tidal energy production potential is equal to about 10% of present U.S. electricity consumption (about 400 terrawatt-hours per year). The greatest of these resources is wave energy, with the most potential in Hawaii, Alaska, and the Pacific Northwest. The Department of Energy's (DOE's) Water Power Program works with industry, universities, other federal agencies, and DOE's national laboratories to promote the development and deployment of technologies capable of generating environmentally sustainable and cost-effective electricity from the nation's water resources.

  11. NREL: Transportation Research - Future Automotive Systems Technology

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial ToolkitSMARTSWorking With UsSimulator Future Automotive

  12. Assessment of Future ICE and Fuel-Cell Powered Vehicles and Their...

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

    Future ICE and Fuel-Cell Powered Vehicles and Their Potential Impacts Assessment of Future ICE and Fuel-Cell Powered Vehicles and Their Potential Impacts 2004 Diesel Engine...

  13. Body powered thermoelectric systems

    E-Print Network [OSTI]

    Settaluri, Krishna Tej

    2012-01-01

    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 ...

  14. Power Systems Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    systems; steam, water, fuel, and environmental monitoring systems; alternative energy systems; reliability, availability, and maintainability assessments; and associated...

  15. INTEGRATED CONTROL OF NEXT GENERATION POWER SYSTEM

    SciTech Connect (OSTI)

    2010-02-28

    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.

  16. Switching power pulse system

    DOE Patents [OSTI]

    Aaland, K.

    1983-08-09

    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.

  17. DC Power Distribution Systems 

    E-Print Network [OSTI]

    Savage, P.

    2012-01-01

    - A FLEXIBLE ALTERNATIVE ..OR ELECTRICAL POWER SUPPLY S. D. REYNOLDS Manager of Industrial Marketing & Services Tennessee Valley Authority Chattanooga, Tennessee ABSTRACT In an increasingly competitive operating environment, utilities must... place greater emphasis on developing programs that benefit the customer while at the same time benefiting the utility. Economy Surplus Power (ESP) is such a program. ESP offers industrial customers attractively priced power supply arrangements based...

  18. This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. IEEE TRANSACTIONS ON POWER SYSTEMS 1

    E-Print Network [OSTI]

    Zhao, Yue

    -thinking in the design and operation of power markets is necessary to enable massive integration of wind energy resources as presented, with the exception of pagination. IEEE TRANSACTIONS ON POWER SYSTEMS 1 Wind Aggregation Via Risky power sources can effec- tively reduce their uncertainty, and hence the cost of wind energy integration

  19. POWER SYSTEMS DEVELOPMENT FACILITY

    SciTech Connect (OSTI)

    Unknown

    2002-05-01

    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.

  20. Preparing the U.S. Foundation for Future Electric Energy Systems

    E-Print Network [OSTI]

    large-scale penetration of Renewable and Alternative Energy technologies Maintain U.S. Electric PowerPreparing the U.S. Foundation for Future Electric Energy Systems: A Strong Power and Energy Engineering Workforce U.S. Power and Energy Engineering Workforce Collaborative Prepared by the Management

  1. Switching power pulse system

    DOE Patents [OSTI]

    Aaland, Kristian (Livermore, CA)

    1983-01-01

    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.

  2. Analyzing the effects of component reliability on naval Integrated Power System quality of service

    E-Print Network [OSTI]

    Hawbaker, Benjamin F. (Benjamin Forrest)

    2008-01-01

    The Integrated Power System (IPS) is a key enabling technology for future naval vessels and their advanced weapon systems. While conventional warship designs utilize separate power systems for propulsion and shipboard ...

  3. Solar powered desalination system

    E-Print Network [OSTI]

    Mateo, Tiffany Alisa

    2011-01-01

    USA, Jacksonville, FL Jacksonville Solar Energy Generation Facility Constructed Systems that produce electricity

  4. Optimal PMU Placement Evaluation for Power System Dynamic State Estimation

    E-Print Network [OSTI]

    Pollefeys, Marc

    Optimal PMU Placement Evaluation for Power System Dynamic State Estimation Jinghe Zhang, Student--The synchronized phasor measurement unit (PMU), developed in the 1980s, is considered to be one of the most important devices in the future of power systems. The recent development of PMU technology provides high

  5. FUTURE POWER GRID INITIATIVE A Multi-layer Data-Driven

    E-Print Network [OSTI]

    FUTURE POWER GRID INITIATIVE A Multi-layer Data-Driven Advanced Reasoning Tool for Smart Grid.zhou@pnnl.gov AbouT FpGI The Future Power Grid Initiative (FPGI) will deliver next-generation concepts and tools for grid operation and planning and ensure a more secure, efficient and reliable future grid. Building

  6. Future Intelligent Power Grids: Analysis of the vision in the European Union and the United States

    SciTech Connect (OSTI)

    Coll-Mayor, Debora; Paget, Mia L.; Lightner, Eric M.

    2007-04-01

    The future of power grids is expected to involve an increasing level of intelligence and integration of new information and communication technologies in every aspect of the electricity system, from demand-side devices to wide-scale distributed generation to a variety of energy markets. This paper provides a general outlook of the definition of this future in the U.S. and the European Union and compares two approaches—GridWiseTM and SmartGrid. It describes the contexts in both the worlds, as they influence the two visions of the future intelligent power grid, and as they form foundations at each respective federal level for supporting research in this field. The similarities and complementarities of the two research programs are examined. Within the framework of a solid precedence for trans-Atlantic cooperation in energy research, the time would seem optimal to set in motion active collaboration and educational exchange on GridWise and SmartGrid research. This paper will help energy policy makers to better understand the key issues determining the two different approaches and the two different policies derived from them; as well as a comparison of the solution provided in each case. This work will also be useful for researchers and industry decision makers to be aware of trans-Atlantic approaches, opportunities, and resources looking toward future, more intelligent and interconnected power grids.

  7. Reactive Power Compensating System.

    DOE Patents [OSTI]

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

    1985-01-04

    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.

  8. Reactive power compensating system

    DOE Patents [OSTI]

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

    1987-01-01

    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.

  9. Solar powered desalination system

    E-Print Network [OSTI]

    Mateo, Tiffany Alisa

    2011-01-01

    Support System for Seawater Desalination Plants. TheRizzuti, Lucio. Seawater Desalination, Conventional andcosts of thermal seawater desalination plants…………………19

  10. Growth Rates of Global Energy Systems and Future Outlooks

    SciTech Connect (OSTI)

    Hoeoek, Mikael; Li, Junchen; Johansson, Kersti; Snowden, Simon

    2012-03-15

    The world is interconnected and powered by a number of global energy systems using fossil, nuclear, or renewable energy. This study reviews historical time series of energy production and growth for various energy sources. It compiles a theoretical and empirical foundation for understanding the behaviour underlying global energy systems' growth. The most extreme growth rates are found in fossil fuels. The presence of scaling behaviour, i.e. proportionality between growth rate and size, is established. The findings are used to investigate the consistency of several long-range scenarios expecting rapid growth for future energy systems. The validity of such projections is questioned, based on past experience. Finally, it is found that even if new energy systems undergo a rapid 'oil boom'-development-i.e. they mimic the most extreme historical events-their contribution to global energy supply by 2050 will be marginal.

  11. Abstract Microgrids are a new concept for future energy dis-tribution systems that enable renewable energy integration and

    E-Print Network [OSTI]

    Collins, Emmanuel

    1 Abstract ­ Microgrids are a new concept for future energy dis- tribution systems that enable renewable energy integration and improved energy management capability. Microgrids consist of multiple power quality and power distribution reliability, microgrids need to operate in both grid

  12. Solar powered desalination system

    E-Print Network [OSTI]

    Mateo, Tiffany Alisa

    2011-01-01

    river, and be used to filter the water. The water producedppm. This system can filter natural sources of water such asstandard filter housing with the inlet concentrated water

  13. Solar powered desalination system

    E-Print Network [OSTI]

    Mateo, Tiffany Alisa

    2011-01-01

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

  14. Power Systems Awards

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    energy across nation at Department of Defense facilities, installed many assessment systems, and recommended energy procurement and installation guidelines. The product of the...

  15. Future Breathing System Requirements for Clean Diesel Engines...

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

    Breathing System Requirements for Clean Diesel Engines Future Breathing System Requirements for Clean Diesel Engines Poster presentation at the 2007 Diesel Engine-Efficiency &...

  16. Water Power for a Clean Energy Future (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-06-01

    This fact sheet provides an overview of the Department of Energy's Wind and Water Power Program's water power research activities.

  17. Exploring Machine Learning Techniques For Dynamic Modeling on Future Exascale Systems

    SciTech Connect (OSTI)

    Song, Shuaiwen; Tallent, Nathan R.; Vishnu, Abhinav

    2013-09-23

    Future exascale systems must be optimized for both power and performance at scale in order to achieve DOE’s goal of a sustained petaflop within 20 Megawatts by 2022 [1]. Massive parallelism of the future systems combined with complex memory hierarchies will form a barrier to efficient application and architecture design. These challenges are exacerbated with emerging complex architectures such as GPGPUs and Intel Xeon Phi as parallelism increases orders of magnitude and system power consumption can easily triple or quadruple. Therefore, we need techniques that can reduce the search space for optimization, isolate power-performance bottlenecks, identify root causes for software/hardware inefficiency, and effectively direct runtime scheduling.

  18. TRANSMISSION SYSTEM ADEQUACY EVALUATION CONSIDERING WIND POWER

    E-Print Network [OSTI]

    Saskatchewan, University of

    TRANSMISSION SYSTEM ADEQUACY EVALUATION CONSIDERING WIND POWER Rajesh Karki Jaimin Patel Power to significantly increase renewable power penetration in electrical power systems. Wind power is the most important systems and large grid connected systems. Power generated by wind depends on the availability of the wind

  19. Combined Heat and Power: A Vision for the Future of CHP in the...

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

    Vision for the Future of CHP in the United States in 2020, June 1999 Combined Heat and Power: A Vision for the Future of CHP in the United States in 2020, June 1999 The U.S....

  20. Wireless Power Transmission An Obscure History and a Bright Future?

    E-Print Network [OSTI]

    La Rosa, Andres H.

    the primary circuit energized by the oscillator (Century Magazine, June 1900). The building of a global transmission. Solar Power Satellite to Earth Terminal. Desert Solar Power Farm to Civilization. Earth Terminal solution to the coming power shortage . . . Solar Power Satellites (SPS) (4) #12;Solar Power Satellites (5

  1. Community Power Works' Success Opens Doors to its Future | Department...

    Broader source: Energy.gov (indexed) [DOE]

    The logo for Community Power Works, with the words Seattle is providing community power WORKS Community Power Works is preparing for the next phase of the program with support...

  2. Promising future energy storage systems: Nanomaterial based systems, Zn-air and electromechanical batteries

    SciTech Connect (OSTI)

    Koopman, R.; Richardson, J.

    1993-10-01

    Future energy storage systems will require longer shelf life, higher duty cycles, higher efficiency, higher energy and power densities, and be fabricated in an environmentally conscious process. This paper describes several possible future systems which have the potential of providing stored energy for future electric and hybrid vehicles. Three of the systems have their origin in the control of material structure at the molecular level and the subsequent nanoengineering into useful device and components: aerocapacitors, nanostructure multilayer capacitors, and the lithium ion battery. The zinc-air battery is a high energy density battery which can provide vehicles with long range (400 km in autos) and be rapidly refueled with a slurry of zinc particles and electrolyte. The electromechanical battery is a battery-sized module containing a high-speed rotor integrated with an iron-less generator mounted on magnetic bearings and housed in an evacuated chamber.

  3. Future Carbon Regulations and Current Investments in Alternative Coal-Fired Power Plant Designs

    E-Print Network [OSTI]

    Sekar, Ram C.

    This paper assesses the role of uncertainty over future U.S. carbon regulations in shaping the current choice of which type of power plant to build. The pulverized coal technology (PC) still offer the lowest cost power— ...

  4. Solar-powered cooling system

    DOE Patents [OSTI]

    Farmer, Joseph C

    2013-12-24

    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.

  5. Optimal Use of Organic Waste in Future Energy Systems the Danish case

    E-Print Network [OSTI]

    Optimal Use of Organic Waste in Future Energy Systems ­ the Danish case Marie Münster*, Henrik Lund a comparative energy system analysis of different technologies utilizing organic waste for heat, power and fuel to assess energy technologies together with the energy systems they are part of and influence. The energy

  6. Use of experience curves to estimate the future cost of power plants with CO2 capture

    E-Print Network [OSTI]

    Rubin, Edward S.; Yeh, Sonia; Antes, Matt; Berkenpas, Michael; Davison, John

    2007-01-01

    systems at a new coal-fired power plant in the U.S. (500 MW,capture systems at coal-?red power plants (Fig. 2). Fig. 4 –systems installed at coal-?red power plants. Lower component

  7. Developing Secure Power Systems Professional Competence: Alignment...

    Energy Savers [EERE]

    Developing Secure Power Systems Professional Competence: Alignment and Gaps in Workforce Development Programs - Phase 2 (JulyAugust 2013) Developing Secure Power Systems...

  8. Nuclear power reactor instrumentation systems handbook. Volume...

    Office of Scientific and Technical Information (OSTI)

    Nuclear power reactor instrumentation systems handbook. Volume 1 Citation Details In-Document Search Title: Nuclear power reactor instrumentation systems handbook. Volume 1 You...

  9. The CMS Detector Power System

    E-Print Network [OSTI]

    Lusin, S

    2008-01-01

    The power system for the on-detector electronics of the CMS Experiment comprises approximately 12000 low voltage channels, with a total power requirement of 1.1 MVA. The radiation environment inside the CMS experimental cavern combined with an ambient magnetic field (reaching up to 1.3 kGauss at the detector periphery) severely limit the available choices of low voltage supplies, effectively ruling out the use of commercial off-the-shelf DC power supplies. Typical current requirements at the CMS detector front end range from 1A-30A per channel at voltages ranging between 1.25V and 8V. This requires in turn that the final stage of the low voltage power supply be located on the detector periphery. Power to the CMS front-end electronics is stabilized by a 2 MVA uninterruptible power supply (UPS) located in a CMS surface building. This UPS isolates the CMS detector from disturbances on the local power grid and provides for 2 minutes of autonomy following a power failure, allowing for an orderly shutdown of detect...

  10. Energy Policy 32 (2004) 289297 The potential of solar electric power for meeting future US energy

    E-Print Network [OSTI]

    Delaware, University of

    2004-01-01

    Energy Policy 32 (2004) 289­297 The potential of solar electric power for meeting future US energy needs: a comparison of projections of solar electric energy generation and Arctic National Wildlife of solar electric power in the form of photovoltaics to meet future US energy demand with the projected

  11. Preventing power outages Power system contingency analysis on the GPU

    E-Print Network [OSTI]

    Vuik, Kees

    problem. Moreover, the power system has to keep functioning properly even when a transmission line failsPreventing power outages Power system contingency analysis on the GPU To provide electricity generators, nuclear power plants, wind turbines, etc.) and a network of lines and cables to transmit

  12. Risk-informed assessment of regulatory and design requirements for future nuclear power plants. Annual report

    SciTech Connect (OSTI)

    NONE

    2000-08-01

    OAK B188 Risk-informed assessment of regulatory and design requirements for future nuclear power plants. Annual report. The overall goal of this research project is to support innovation in new nuclear power plant designs. This project is examining the implications, for future reactors and future safety regulation, of utilizing a new risk-informed regulatory system as a replacement for the current system. This innovation will be made possible through development of a scientific, highly risk-formed approach for the design and regulation of nuclear power plants. This approach will include the development and/or confirmation of corresponding regulatory requirements and industry standards. The major impediment to long term competitiveness of new nuclear plants in the U.S. is the capital cost component--which may need to be reduced on the order of 35% to 40% for Advanced Light Water Reactors (ALWRS) such as System 80+ and Advanced Boiling Water Reactor (ABWR). The required cost reduction for an ALWR such as AP600 or AP1000 would be expected to be less. Such reductions in capital cost will require a fundamental reevaluation of the industry standards and regulatory bases under which nuclear plants are designed and licensed. Fortunately, there is now an increasing awareness that many of the existing regulatory requirements and industry standards are not significantly contributing to safety and reliability and, therefore, are unnecessarily adding to nuclear plant costs. Not only does this degrade the economic competitiveness of nuclear energy, it results in unnecessary costs to the American electricity consumer. While addressing these concerns, this research project will be coordinated with current efforts of industry and NRC to develop risk-informed, performance-based regulations that affect the operation of the existing nuclear plants; however, this project will go further by focusing on the design of new plants.

  13. Advanced Diesel Common Rail Injection System for Future Emission...

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

    More Documents & Publications Injection System and Engine Strategies for Advanced Emission Standards SCR Technologies for NOx Reduction Powertrain Trends and Future...

  14. Abstract--In the UK and also worldwide it is certain that future transmission systems will operate with significantly larger

    E-Print Network [OSTI]

    Taylor, Gary

    and offshore. Therefore, in order to operate and control future transmission systems securely and efficiently such generation to a power system. Traditional operation and control methodologies that are currently employed1 Abstract-- In the UK and also worldwide it is certain that future transmission systems

  15. This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. IEEE TRANSACTIONS ON POWER SYSTEMS 1

    E-Print Network [OSTI]

    Fu, Yong

    -Constrained Unit Commitment for Large-Scale Power Systems Amin Kargarian, Student Member, IEEE, Yong Fu, Senior) of electricity markets solve the security-constrained unit commitment (SCUC) problem to plan a secure, security-constrained unit commitment. NOMENCLATURE A. Indices, Sets and Parameters Index for generating

  16. OE Power Systems Engineering Research & Development Program Partnershi...

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

    Mission Power Systems Engineering Research and Development OE Power Systems Engineering Research & Development Program Partnerships OE Power Systems Engineering Research &...

  17. Wind Generation in the Future Competitive California Power Market

    SciTech Connect (OSTI)

    Sezgen, O.; Marnay, C.; Bretz, S.

    1998-03-01

    The goal of this work is to develop improved methods for assessing the viability of wind generation in competitive electricity markets. The viability of a limited number of possible wind sites is assessed using a geographic information system (GIS) to determine the cost of development, and Elfin, an electric utility production costing and capacity expansion model, to estimate the possible revenues and profits of wind farms at the sites. This approach improves on a simple profitability calculation by using a site-specific development cost calculation and by taking the effect of time varying market prices on revenues into account. The first component of the work is to develop data characterizing wind resources suitable for use in production costing and capacity expansion models, such as Elfin, that are capable of simulating competitive electricity markets. An improved representation of California wind resources is built, using information collected by the California Energy Commission (CE C) in previous site evaluations, and by using a GIS approach to estimating development costs at 36 specific sites. These sites, which have been identified as favorable for wind development, are placed on Digital Elevation Maps (DEMs) and development costs are calculated based on distances to roads and transmission lines. GIS is also used to develop the potential capacity at each site by making use of the physical characteristics of the terrain, such as ridge lengths. In the second part of the effort, using a previously developed algorithm for simulating competitive entry to the California electricity market, the Elfin model is used to gauge the viability of wind farms at the 36 sites. The results of this exercise are forecasts of profitable development levels at each site and the effects of these developments on the electricity system as a whole. Under best guess assumptions, including prohibition of new nuclear and coal capacity, moderate increase in gas prices and some decline in renewable capital costs, about 7.35 GW of the 10 GW potential capacity at the 36 specific sites is profitably developed and 62 TWh of electricity produced per annum by the year 2030. Most of the development happens during the earlier years of the forecast. Sensitivity of these results to future gas price scenarios is also presented. This study also demonstrates that an analysis based on a simple levelized profitability calculation approach does not sufficiently capture the implications of time varying prices in a competitive market.

  18. Water Power for a Clean Energy Future | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    This document describes some of the accomplishments of the Department of Energy Water Power Program, and how those accomplishments are supporting the advancement of renewable...

  19. Power transaction issues in deregulated power systems 

    E-Print Network [OSTI]

    Roycourt, Henrik

    2000-01-01

    is to review the power flow problem and the newly emerging concept of Available Transfer Capability (ATC) / Total Transfer Capability (TTC). Secondly, it aims at reviewing and implementing in the Matlab environment a technique for tracing the contributions...

  20. Power system applications for PASC converter systems

    SciTech Connect (OSTI)

    Donnelly, M.K.; Johnson, R.M.

    1994-04-01

    This paper shows, using computer EMTP simulations, some preliminary results of applying pulse amplitude synthesis and control (PASC) technology to single-source level voltage converter system. The method can be applied to any single terminal pair source with appropriate modifications in power extraction interface and computer control program to match source and load impedance characteristics. The PASC realization as discussed here employs banks of transformers, one bank per phase, in which the primaries are connected in parallel through a switch matrix to the dc source. Two opposite polarity primaries per transformer are pulsed alternatively in time to produce an oscillatory sinusoidal output waveform. PASC conversion system capabilities to produce both leading and lagging power factor power output in single-phase and three-phase {Delta} or Y configurations are illustrated. EMTP simulations are used to demonstrate the converter capabilities. Also included are discussions regarding harmonics and potential control strategies to adapt the converter to an application or to minimize harmonics.

  1. TheHighCostofNuclearPower Why America Should Choose a Clean Energy Future

    E-Print Network [OSTI]

    Laughlin, Robert B.

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Nuclear Power Companies are Counting on Consumers and Taxpayers to Bear the Risks of ReactorTheHighCostofNuclearPower Why America Should Choose a Clean Energy Future Over New Nuclear Reactors, CalPIRG Education Fund March 2009 The High Cost of Nuclear Power Why America Should Choose a Clean

  2. Distributed Power Delivery for Energy Efficient and Low Power Systems

    E-Print Network [OSTI]

    Friedman, Eby G.

    Distributed Power Delivery for Energy Efficient and Low Power Systems Selc¸uk K¨ose Department are needed to determine the location of these on-chip power supplies and decoupling capacitors. In this paper, the optimal location of the power supplies and decoupling capacitors is determined for different size

  3. POWER SYSTEMS STABILITY WITH LARGE-SCALE WIND POWER PENETRATION

    E-Print Network [OSTI]

    Bak-Jensen, Birgitte

    of offshore wind farms, wind power fluctuations may introduce several challenges to reliable power system behaviour due to natural wind fluctuations. The rapid power fluctuations from the large scale wind farms Generation Control (AGC) system which includes large- scale wind farms for long-term stability simulation

  4. 2002CALIFORNIAPOWERMIX 2002 NET SYSTEM POWER CALCULATION

    E-Print Network [OSTI]

    the generation back to specific generators, and thereby claim that the electricity offered for sale to retail of their power as net system power. What is Net System Power? Net system power is "the mix of electricity fuel the previous calendar year in each of the statute's fuel type categories. Imports of out-of-state generation

  5. Power Electronic Thermal System Performance and Integration ...

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

    May 18-22, 2009 -- Washington D.C. ape13bennion.pdf More Documents & Publications Power Electronic Thermal System Performance and Integration Integrated Power Module...

  6. Water Power for a Clean Energy Future (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-07-01

    Water power technologies harness energy from rivers and oceans to generate electricity for the nation's homes and businesses, and can help the United States meet its pressing energy, environmental, and economic challenges. Water power technologies; fall into two broad categories: conventional hydropower and marine and hydrokinetic technologies. Conventional hydropower uses dams or impoundments to store river water in a reservoir. Marine and hydrokinetic technologies capture energy from waves, tides, ocean currents, free-flowing rivers, streams, and ocean thermal gradients.

  7. Modeling Power Systems as Complex Adaptive Systems

    SciTech Connect (OSTI)

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

    2004-12-30

    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.

  8. Current and Future High Power Operation of Fermilab Main Injector

    SciTech Connect (OSTI)

    Kourbanis, I.; Adamson, P.; Brown, B.; Capista, D.; Chou, W.; Morris, D.; Seyia, K.; Wu, G.; Yang, M.J.; /Fermilab

    2009-04-01

    Fermilab's Main Injector on acceleration cycles to 120 GeV has been running a mixed mode operation delivering beam to both the antiproton source for pbar production and to the NuMI[1] target for neutrino production since 2005. On January 2008 the slip stacking process used to increase the beam to the pbar target was expanded to include the beam to the NuMI target increasing the MI beam power at 120 GeV to 400KW. The current high power MI operation will be described along with the plans to increase the power to 700KW for NOvA and to 2.1 MW for project X.

  9. Strategic Sustainability Performance Plan - Discovering Sustainable Solutions to Power and Secure America’s Future

    SciTech Connect (OSTI)

    none,

    2010-09-01

    Sustainability is fundamental to the Department of Energy’s research mission and operations as reflected in the Department’s Strategic Plan. Our overarching mission is to discover the solutions to power and secure America’s future.

  10. The Vermont-Sandia Smart Grid Partnership Powering the Future: The Vermont Smart Grid and Beyond

    E-Print Network [OSTI]

    Hayden, Nancy J.

    The Vermont-Sandia Smart Grid Partnership Powering the Future: The Vermont Smart Grid and Beyond BURLINGTON SHERATON HOTEL & CONFERENCE CENTER MAY Laboratories 9:10-10:15 a.m. Opening Plenary: The Vermont-Sandia Smart Grid

  11. "Is There a Future for Nuclear Power After Fukushima?", Dr. Alexander...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    January 21, 2012, 9:30am Science On Saturday MBG Auditorium "Is There a Future for Nuclear Power After Fukushima?", Dr. Alexander Glaser, Woodrow Wilson School of Public and...

  12. Development of standardized air-blown coal gasifier/gas turbine concepts for future electric power systems. Volume 2, Appendix A: Fixed bed gasifier and sulfur sorbent regeneration subsystem computer model development: Final report

    SciTech Connect (OSTI)

    Blough, E.; Russell, W.; Leach, J.W.

    1990-08-01

    Computer models have been developed for evaluating conceptual designs of integrated coal gasification combined cycle power plants. An overall system model was developed for performing thermodynamic cycle analyses, and detailed models were developed for predicting performance characteristics of fixed bed coal gasifiers and hot gas clean up subsystem components. The overall system model performs mass and energy balances and does chemical equilibrium analyses to determine the effects of changes in operating conditions, or to evaluate proposed design changes. An existing plug flow model for fixed bed gasifiers known as the Wen II model was revised and updated. Also, a spread sheet model of zinc ferrite sulfur sorbent regeneration subsystem was developed. Parametric analyses were performed to determine how performance depends on variables in the system design. The work was done to support CRS Sirrine Incorporated in their study of standardized air blown coal gasifier gas turbine concepts.

  13. Security engineering for embedded systems the SecFutur vision

    E-Print Network [OSTI]

    Security engineering for embedded systems ­ the SecFutur vision [Vision Paper] Sigrid Gürgens in the development of embedded systems. However, strongly interconnected em- bedded systems play vital roles in many for embedded systems is a discipline that currently attracts more interest. This paper presents the vision

  14. What Will Power the Hydrogen Economy? Present and Future Sources of Hydrogen Energy

    E-Print Network [OSTI]

    Kammen, Daniel M.

    (NREL) for allowing us to include the renewable energy potential maps that NREL has generated = fuel cell electric vehicle FERCO = Future Energy Resources Corporation ft2 = square foot or feet GHGWhat Will Power the Hydrogen Economy? Present and Future Sources of Hydrogen Energy UCD-ITS-RR-04

  15. Use of experience curves to estimate the future cost of power plants with CO2 capture

    E-Print Network [OSTI]

    Rubin, Edward S.; Yeh, Sonia; Antes, Matt; Berkenpas, Michael; Davison, John

    2007-01-01

    of power plant emissions of greenhouse gases, and thee) power plant FGD and SCR systems; also, (f) gas turbineno IGCC power plant has yet combined CO 2 capture with a gas

  16. System and method for advanced power management

    DOE Patents [OSTI]

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

    2009-07-28

    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.

  17. Microsoft PowerPoint - 6_Rowe-Future Challenges for Global Fuel...

    National Nuclear Security Administration (NNSA)

    International Atomic Energy Agency (IAEA), Nuclear Fuel Cycle Information System (NFCIS) web site IAEA Safeguards Begins Here 4 Future Challenges for Global Fuel Cycle Material...

  18. Future Grid: The Environment Future Grid Initiative White Paper

    E-Print Network [OSTI]

    Future Grid: The Environment Future Grid Initiative White Paper Power Systems Engineering Research Center Empowering Minds to Engineer the Future Electric Energy System #12;Future Grid: The Environment Prepared for the Project "The Future Grid to Enable Sustainable Energy Systems" Funded by the U

  19. Fuel cell powered irrigation system

    SciTech Connect (OSTI)

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

    1982-01-12

    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.

  20. Reliability Modeling of Cyber-Physical Electric Power Systems: A System-Theoretic Framework

    E-Print Network [OSTI]

    Liberzon, Daniel

    responsible for generation, transmission and utilization of electrical energy, and consequently, the impacts), and advanced power electronics devices for power-flow con- trol, such as flexible AC transmission systems European counterpart Electricity Networks of the Future, are truly cyber- The author is with the ECE

  1. Water Power for a Clean Energy Future | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterFinancialInvestingRenewableTeachDevelopmentWater HeatingWater Power

  2. Power Systems Integration Laboratory (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

    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).

  3. Concepts studies for future intracity air transportation systems

    E-Print Network [OSTI]

    Joint DOT-NASA Civil Aviation Research and Development Policy Study.; United States. National Aeronautics and Space Administration; Massachusetts Institute of Technology. Flight Transportation Laboratory

    1970-01-01

    Summary: This report is concerned with describing the possible application of future air transportation systems within urban areas of the United States. The planning horizon extends to 1995 and the report focuses on the ...

  4. Wind Speed Forecasting for Power System Operation 

    E-Print Network [OSTI]

    Zhu, Xinxin

    2013-07-22

    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...

  5. Ris Energy Report 8 The intelligent energy system infrastructure for the future

    E-Print Network [OSTI]

    Risř Energy Report 8 The intelligent energy system infrastructure for the future Reprint Petersen #12;Risř Energy Report 5 Renewable energy for power and transport Global energy policy today is dominated by three concerns: security of supply, climate change, and energy for development and poverty

  6. The power grid of the future is a platform that

    Broader source: Energy.gov (indexed) [DOE]

    Reliability, which drives national efforts to modernize the electricity delivery system, enhance the security and reliability of America's energy infrastructure, and...

  7. Energy Storage for Power Systems Applications: A Regional Assessment for the Northwest Power Pool (NWPP)

    SciTech Connect (OSTI)

    Kintner-Meyer, Michael CW; Balducci, Patrick J.; Jin, Chunlian; Nguyen, Tony B.; Elizondo, Marcelo A.; Viswanathan, Vilayanur V.; Guo, Xinxin; Tuffner, Francis K.

    2010-04-01

    Wind production, which has expanded rapidly in recent years, could be an important element in the future efficient management of the electric power system; however, wind energy generation is uncontrollable and intermittent in nature. Thus, while wind power represents a significant opportunity to the Bonneville Power Administration (BPA), integrating high levels of wind resources into the power system will bring great challenges to generation scheduling and in the provision of ancillary services. This report addresses several key questions in the broader discussion on the integration of renewable energy resources in the Pacific Northwest power grid. More specifically, it addresses the following questions: a) how much total reserve or balancing requirements are necessary to accommodate the simulated expansion of intermittent renewable energy resources during the 2019 time horizon, and b) what are the most cost effective technological solutions for meeting load balancing requirements in the Northwest Power Pool (NWPP).

  8. Designing the Future Energy System for Cleaner Air: A National Laboratory Perspective 

    E-Print Network [OSTI]

    Cale, J.

    2014-01-01

    of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. James Cale, Ph.D., Group Manager Distributed Energy Systems Integration (DESI) Power Systems Engineering Center... National Renewable Energy Laboratory Designing the Future Energy System for Cleaner Air: A National Laboratory Perspective ESL-KT-14-11-23 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 2DOE and National Laboratories 2...

  9. ELECTRICAL POWER SYSTEM DESCRIPTION DOCUMENT

    SciTech Connect (OSTI)

    M. Maniyar

    2004-06-22

    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.

  10. Overview of current and future energy storage technologies for electric power applications

    E-Print Network [OSTI]

    Bahrami, Majid

    Overview of current and future energy storage technologies for electric power applications Ioannis September 2008 Keywords: Power generation Distributed generation Energy storage Electricity storage A B energy sources (RES). The extensive use of such energy sources in today's electricity networks can

  11. Solar-powered cooling system

    DOE Patents [OSTI]

    Farmer, Joseph C.

    2015-07-28

    A solar-powered adsorption-desorption refrigeration and air conditioning system that uses nanostructural materials such as aerogels, zeolites, and sol gels as the adsorptive media. Refrigerant molecules are adsorbed on the high surface area of the nanostructural material while the material is at a relatively low temperature, perhaps at night. During daylight hours, when the nanostructural materials is heated by the sun, the refrigerant are thermally desorbed from the surface of the aerogel, thereby creating a pressurized gas phase in the vessel that contains the aerogel. This solar-driven pressurization forces the heated gaseous refrigerant through a condenser, followed by an expansion valve. In the condenser, heat is removed from the refrigerant, first by circulating air or water. Eventually, the cooled gaseous refrigerant expands isenthalpically through a throttle valve into an evaporator, in a fashion similar to that in more conventional vapor recompression systems.

  12. Integrated Retail & Wholesale Power System Operation

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    Integrated Retail & Wholesale Power System Operation with Smart-Grid Functionality PIs: Dionysios Retail/Wholesale Power System Operation with Smart-Grid Functionality Project PIs: Dionysios Aliprantis Tesfatsion, "Project Overview: Integrated Retail and Wholesale Power System Operation with Smart-Grid

  13. The Future of the Andrew File System

    ScienceCinema (OSTI)

    None

    2011-04-25

    The talk will discuss the ten operational capabilities that have made AFS unique in the distributed file system space and how these capabilities are being expanded upon to meet the needs of the 21st century. Derrick Brashear and Jeffrey Altman will present a technical road map of new features and technical innovations that are under development by the OpenAFS community and Your File System, Inc. funded by a U.S. Department of Energy Small Business Innovative Research grant. The talk will end with a comparison of AFS to its modern days competitors.

  14. Star Power on Earth: Path to Clean Energy Future

    ScienceCinema (OSTI)

    Ed Moses

    2010-09-01

    Lawrence Livermore National Laboratory's "Science on Saturday" lecture series presents Ed Moses, Director of the National Ignition Facility, discussing the world's largest laser system and its potential impact on society's upcoming energy needs.

  15. DESIGNING EFFICIENT MEMORY FOR FUTURE COMPUTING SYSTEMS

    E-Print Network [OSTI]

    Balasubramonian, Rajeev

    , limited pin counts, increasing heterogeneity and complexity, and the diminished importance of cost main memory system with the following innovative features: (i) overfetch-aware re-organized chips, (ii) low-cost silicon photonic memory channels, (iii) largely autonomous memory modules with a packet

  16. The Future Potential of Waver Power in the United States

    SciTech Connect (OSTI)

    Mirko Previsic; Jeff Epler; Maureen Hand; Donna Heimiller; Walter Short; Kelly Eurek

    2012-09-20

    The theoretical ocean wave energy resource potential exceeds 50% of the annual domestic energy demand of the United States, is located close to coastal population centers, and, although variable in nature, may be more consistent and predictable than some other renewable generation technologies. As a renewable electricity generation technology, ocean wave energy offers a low air pollutant option for diversifying the U.S. electricity generation portfolio. Furthermore, the output characteristics of these technologies may complement other renewable technologies. This study addresses the following: (1) The theoretical, technical and practical potential for electricity generation from wave energy (2) The present lifecycle cost profile (Capex, Opex, and Cost of Electricity) of wave energy conversion technology at a reference site in Northern California at different plant scales (3) Cost of electricity variations as a function of deployment site, considering technical, geo-spatial and and electric grid constraints (4) Technology cost reduction pathways (5) Cost reduction targets at which the technology will see significant deployment within US markets, explored through a series of deployment scenarios RE Vision Consulting, LLC (RE Vision), engaged in various analyses to establish current and future cost profiles for marine hydrokinetic (MHK) technologies, quantified the theoretical, technical and practical resource potential, performed electricity market assessments and developed deployment scenarios. RE Vision was supported in this effort by NREL analysts, who compiled resource information, performed analysis using the ReEDSa model to develop deployment scenarios, and developed a simplified assessment of the Alaska and Hawaii electricity markets.

  17. ASSESSMENT OF COMBINED HEAT AND POWER SYSTEM "PREMIUM POWER" APPLICATIONS IN CALIFORNIA

    E-Print Network [OSTI]

    Norwood, Zack

    2010-01-01

    Modeling with Combined Heat and Power Applications. LawrenceASSESSMENT OF COMBINED HEAT AND POWER SYSTEM “PREMIUM POWER”2010 ASSESSMENT OF COMBINED HEAT AND POWER SYSTEM “PREMIUM

  18. Electric Power Generation Systems | netl.doe.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Electric Power Generation Systems Coal gasification-based power plants Coal combustion-based power plants Natural gas-fueled power plants Turbines Fuel cells Existing power plants...

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

    SciTech Connect (OSTI)

    Andruski, Joel; Drennen, Thomas E.

    2011-01-01

    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).

  20. Electronic power conditioning for dynamic power conversion in high-power space systems 

    E-Print Network [OSTI]

    Hansen, James Michael

    1991-01-01

    power conversion allows for improved methods of power conditioning. A block diagram of one such system that uses dynamic power conversion is shown in Fig. 4. The blocks labeled Energy Source, Primary Heat Rejection, snd User's Load are the same...ELECTRONIC POWER CONDITIONING FOR DYNAMIC POWER CONVERSION IN HIGH ? POWER SPACE SYSTEMS A Thesis by JAMES MICHAEL HANSEN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

  1. Energy management system functions in deregulated power systems 

    E-Print Network [OSTI]

    Magnago, Fernando Hugo

    1997-01-01

    The market structures for electric energy and power are changing. In the past interconnected electric utility systems dealt only with each other to buy and sell power and energy. In recent times, the electric power industry is facing...

  2. Agent Modeling for Integrated Power Systems

    E-Print Network [OSTI]

    effective market power mitigation rules, how to incorporate ancillary service markets, and how to properly implement a retail electricity market to encourage customer participation. Although valuable experience hasAgent Modeling for Integrated Power Systems Final Project Report Power Systems Engineering Research

  3. Reference reactor module for NASA's lunar surface fission power system

    SciTech Connect (OSTI)

    Poston, David I; Kapernick, Richard J; Dixon, David D; Werner, James; Qualls, Louis; Radel, Ross

    2009-01-01

    Surface fission power systems on the Moon and Mars may provide the first US application of fission reactor technology in space since 1965. The Affordable Fission Surface Power System (AFSPS) study was completed by NASA/DOE to determine the cost of a modest performance, low-technical risk surface power system. The AFSPS concept is now being further developed within the Fission Surface Power (FSP) Project, which is a near-term technology program to demonstrate system-level TRL-6 by 2013. This paper describes the reference FSP reactor module concept, which is designed to provide a net power of 40 kWe for 8 years on the lunar surface; note, the system has been designed with technologies that are fully compatible with a Martian surface application. The reactor concept uses stainless-steel based. UO{sub 2}-fueled, pumped-NaK fission reactor coupled to free-piston Stirling converters. The reactor shielding approach utilizes both in-situ and launched shielding to keep the dose to astronauts much lower than the natural background radiation on the lunar surface. The ultimate goal of this work is to provide a 'workhorse' power system that NASA can utilize in near-term and future Lunar and Martian mission architectures, with the eventual capability to evolve to very high power, low mass systems, for either surface, deep space, and/or orbital missions.

  4. Power production from renewable resources in a gasification power system

    SciTech Connect (OSTI)

    Paisley, M.A.; Farris, G.; Bain, R.

    1996-12-31

    The US Department of Energy (DOE) has been a leader in the promotion and development of alternative fuel supplies based on renewable energy crops. One promising power generation technology is biomass gasification coupled with either a gas turbine in a combined cycle system or a fuel cell. The gasification of biomass can efficiently and economically produce a renewable source of a clean gaseous fuel suitable for use in these high efficiency power systems or as a substitute fuel in other combustion devices such as boilers, kilns, or other natural gas fired equipment. This paper discusses the development and commercialization of the Battelle high-throughput gasification process for gas turbine based power generation systems. Projected process economics for a gas turbine combined cycle plant are presented along with a description of integrated system operation coupling a 200kW gas turbine power generation system to a 10 ton per day gasifier, and current commercialization activities. 6 refs., 3 figs., 1 tab.

  5. A View on Future Building System Modeling and Simulation

    SciTech Connect (OSTI)

    Wetter, Michael

    2011-04-01

    This chapter presents what a future environment for building system modeling and simulation may look like. As buildings continue to require increased performance and better comfort, their energy and control systems are becoming more integrated and complex. We therefore focus in this chapter on the modeling, simulation and analysis of building energy and control systems. Such systems can be classified as heterogeneous systems because they involve multiple domains, such as thermodynamics, fluid dynamics, heat and mass transfer, electrical systems, control systems and communication systems. Also, they typically involve multiple temporal and spatial scales, and their evolution can be described by coupled differential equations, discrete equations and events. Modeling and simulating such systems requires a higher level of abstraction and modularisation to manage the increased complexity compared to what is used in today's building simulation programs. Therefore, the trend towards more integrated building systems is likely to be a driving force for changing the status quo of today's building simulation programs. Thischapter discusses evolving modeling requirements and outlines a path toward a future environment for modeling and simulation of heterogeneous building systems.A range of topics that would require many additional pages of discussion has been omitted. Examples include computational fluid dynamics for air and particle flow in and around buildings, people movement, daylight simulation, uncertainty propagation and optimisation methods for building design and controls. For different discussions and perspectives on the future of building modeling and simulation, we refer to Sahlin (2000), Augenbroe (2001) and Malkawi and Augenbroe (2004).

  6. Reuse of hybrid car power systems

    E-Print Network [OSTI]

    Kirkby, Nicholas (Nicholas J.)

    2015-01-01

    Used hybrid car power systems are inexpensive and capable of tens of kilowatts of power throughput. This paper documents a process for using the second generation Toyota Prius inverter module to drive a three phase permanent ...

  7. An Energy-Based Approach to Power System Analysis

    E-Print Network [OSTI]

    Caliskan, Sina Yamac

    2015-01-01

    loads, Electrical Power and Energy Systems, Vol. 8, Issue 1,equation, Electrical Power & Energy Systems, Vol. 3, No. 3,In contemporary power systems, energy flows from the

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

    Broader source: Energy.gov (indexed) [DOE]

    Residential and Utility Solar Power Generating Systems SunPower,Low Cost Thin Film Building-Integrated PV Systems Low Cost High Concentration PV Systems for Utility Power...

  9. SUBMITTED TO IEEE TRANSACTIONS ON POWER SYSTEMS, FEBRUARY 2002 1 Human Factors Aspects of Power System

    E-Print Network [OSTI]

    SUBMITTED TO IEEE TRANSACTIONS ON POWER SYSTEMS, FEBRUARY 2002 1 Human Factors Aspects of Power with human factors aspects of utilizing color contours to visualize electric power system bus voltage in the quickest solution times. Testing was done using a modified version of the IEEE 118 bus system. Index Terms--Power

  10. Power management circuits for ultra-low power systems

    E-Print Network [OSTI]

    El-Damak, Dina Reda

    2015-01-01

    Power management circuits perform a wide range of vital tasks for electronic systems including DC-DC conversion, energy harvesting, battery charging and protection as well as dynamic voltage scaling. The impact of the ...

  11. Distributed vs. Centralized Power Systems Frequency Control

    E-Print Network [OSTI]

    Dimarogonas, Dimos

    Distributed vs. Centralized Power Systems Frequency Control Martin Andreasson12 , Dimos V control of electrical power systems. We propose a distributed controller which retains the reference, where their performance is compared. I. INTRODUCTION Distributed control is in many large-scale systems

  12. Integration of Storage Devices into Power Systems

    E-Print Network [OSTI]

    and renewable source of energy with zero fuel costs. However, wind generation outputs are highly variableIntegration of Storage Devices into Power Systems with Renewable Energy Sources Final Project System #12;Integration of Storage Devices into Power Systems with Renewable Energy Sources Final Project

  13. Flexibility in 21st Century Power Systems

    SciTech Connect (OSTI)

    Cochran, J.; Miller, M.; Zinaman, O.; Milligan, M.; Arent, D.; Palmintier, B.; O'Malley, M.; Mueller, S.; Lannoye, E.; Tuohy, A.; Kujala, B.; Sommer, M.; Holttinen, H.; Kiviluoma, J.; Soonee, S. K.

    2014-05-01

    Flexibility of operation--the ability of a power system to respond to change in demand and supply--is a characteristic of all power systems. Flexibility is especially prized in twenty-first century power systems, with higher levels of grid-connected variable renewable energy (primarily, wind and solar). This paper summarizes the analytic frameworks that have emerged to measure this characteristic and distills key principles of flexibility for policy makers.

  14. Risk Informed Assessment of Regulatory and Design Requirements for Future Nuclear Power Plants - Final Technical Report

    SciTech Connect (OSTI)

    Ritterbusch, Stanley; Golay, Michael; Duran, Felicia; Galyean, William; Gupta, Abhinav; Dimitrijevic, Vesna; Malsch, Marty

    2003-01-29

    OAK B188 Summary of methods proposed for risk informing the design and regulation of future nuclear power plants. All elements of the historical design and regulation process are preserved, but the methods proposed for new plants use probabilistic risk assessment methods as the primary decision making tool.

  15. Energy Efficiency in the Future The Sixth Northwest Power Plan, 2010

    E-Print Network [OSTI]

    Resource Portfolio CumulativeResources (AverageMegawatts) Energy efficiency is at the heart of the SixthEnergy Efficiency in the Future The Sixth Northwest Power Plan, 2010 The plan,the sixth five megawatts). This efficiency,combined with new renewable energy,could delay investments in new fossil

  16. A Primer on the Fifth Power Plan: A Guide for Our Energy Future

    E-Print Network [OSTI]

    s, increased demand led energy planners to believe that hydro-generating resources would soonA Primer on the Fifth Power Plan: A Guide for Our Energy Future Spring 2004 Striking a Balance Between Energy and the Environment in the Columbia River Basin he Northwest is unique in how it plans its

  17. Ris Energy Report 7 Future low carbon energy systems

    E-Print Network [OSTI]

    Risř Energy Report 7 Future low carbon energy systems Reprint of summary and recommendations Risř-R-1651(EN) October 2008 Edited by Hans Larsen and Leif Sřnderberg Petersen #12;Risř Energy Report 7 Preface This Risř Energy Report, the seventh of a series that began in 2002, takes as its point

  18. INDUSTRIAL ENERGY DATA COLLECTION EXISTING SYSTEM AND PROPOSED FUTURE

    E-Print Network [OSTI]

    INDUSTRIAL ENERGY DATA COLLECTION IN CANADA: EXISTING SYSTEM AND PROPOSED FUTURE DEVELOPMENT. Parminder S. Sandhu Paul Willis October 1994 #12;Industrial Energy Data Collection in Canada: Existing. INTRODUCTION 1 3. NEED FOR INDUSTRIAL ENERGY DATA COLLECTION 2 PART 1 EVALUATION OF EXISTING DATA COLLECTION

  19. Natural Systems & Climate Change: Strategies for Our Future

    E-Print Network [OSTI]

    California at Davis, University of

    Natural Systems & Climate Change: Strategies for Our Future May 20,2013 #12;On the cover: Pendersen Ken Alex, Senior Policy Advisor to Gov. Jerry Brown and Director of the Office of Planning Collins, Collins Pine Company Joe Morris, Founder, Morris Grassfed Beef Misha Sarkovich, Sacramento

  20. Options Impacting the Electric System of the Future (ESF); NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Cory, Karlynn

    2015-08-10

    As utilities are faced with adapting to new technologies, technology and policy due diligence are necessary to ensure the development of a future grid that brings greater value to utilities and their consumers. This presentation explores the different kinds of future directions the power industry could consider to create, discussing key components necessary for success. It will also discuss the practical application and possible strategies for utilities and innovators to implement smart technologies that will enable an ultimate ‘intelligent’ grid capable of two-way communication, interoperability, and greater efficiency and system resiliency.

  1. Water reactive hydrogen fuel cell power system

    DOE Patents [OSTI]

    Wallace, Andrew P; Melack, John M; Lefenfeld, Michael

    2014-11-25

    A water reactive hydrogen fueled power system includes devices and methods to combine reactant fuel materials and aqueous solutions to generate hydrogen. The generated hydrogen is converted in a fuel cell to provide electricity. The water reactive hydrogen fueled power system includes a fuel cell, a water feed tray, and a fuel cartridge to generate power for portable power electronics. The removable fuel cartridge is encompassed by the water feed tray and fuel cell. The water feed tray is refillable with water by a user. The water is then transferred from the water feed tray into the fuel cartridge to generate hydrogen for the fuel cell which then produces power for the user.

  2. Water reactive hydrogen fuel cell power system

    DOE Patents [OSTI]

    Wallace, Andrew P; Melack, John M; Lefenfeld, Michael

    2014-01-21

    A water reactive hydrogen fueled power system includes devices and methods to combine reactant fuel materials and aqueous solutions to generate hydrogen. The generated hydrogen is converted in a fuel cell to provide electricity. The water reactive hydrogen fueled power system includes a fuel cell, a water feed tray, and a fuel cartridge to generate power for portable power electronics. The removable fuel cartridge is encompassed by the water feed tray and fuel cell. The water feed tray is refillable with water by a user. The water is then transferred from the water feed tray into a fuel cartridge to generate hydrogen for the fuel cell which then produces power for the user.

  3. DISTRIBUTED ENERGY SYSTEMS IN CALIFORNIA'S FUTURE: A PRELIMINARY REPORT, VOLUME I

    E-Print Network [OSTI]

    Authors, Various

    2010-01-01

    and Solar Thermal Hydroelectric Power Geothermal . Land UsePower Commission, Hydroelectric Power Resources of thesome development for the hydroelectric power system. Nuclear

  4. Reliable GPS-Based Timing for Power Systems: A Multi-Layered Multi-Receiver Architecture

    E-Print Network [OSTI]

    Gao, Grace Xingxin

    measurement unit (PMU), also known as synchrophasor, is a device capable of measuring power system voltage a victim receiver's reported position, time, or both. In a future scenario where PMU data play

  5. High power laser perforating tools and systems

    DOE Patents [OSTI]

    Zediker, Mark S; Rinzler, Charles C; Faircloth, Brian O; Koblick, Yeshaya; Moxley, Joel F

    2014-04-22

    ystems devices and methods for the transmission of 1 kW or more of laser energy deep into the earth and for the suppression of associated nonlinear phenomena. Systems, devices and methods for the laser perforation of a borehole in the earth. These systems can deliver high power laser energy down a deep borehole, while maintaining the high power to perforate such boreholes.

  6. Accelerating the transformation of power systems

    E-Print Network [OSTI]

    requirements are unique to each power system, but across many settings the quantity and performance ancillary services provision and preventing gaming Next Steps · CERC and POSOCO are evaluating how to apply consultative support Accelerating the transformation of power systems NREL/FS-6A20-61811 · May 2014 15013

  7. Ocean Renewable Power Co (ORPC) (TRL 7 8 System)- TidGen (TM) Power System Commercialization Project

    Broader source: Energy.gov [DOE]

    Ocean Renewable Power Co (ORPC) (TRL 7 8 System) - TidGen (TM) Power System Commercialization Project

  8. Princeton Power Systems (TRL 5 6 Component)- Marine High-Voltage Power Conditioning and Transmission System with Integrated Energy Storage

    Broader source: Energy.gov [DOE]

    Princeton Power Systems (TRL 5 6 Component) - Marine High-Voltage Power Conditioning and Transmission System with Integrated Energy Storage

  9. Evaluating Future Standards and Codes with a Focus on High Penetration Photovoltaic (HPPV) System Deployment (Poster)

    SciTech Connect (OSTI)

    Coddington, M.; Kroposki, B.; Basso, T.; Lynn, K.

    2010-12-01

    Poster displaying solutions for evaluating future standards and codes for high penetration photovoltaic (HPPV) systems.

  10. High-Temperature SiC Power Module with Integrated SiC Gate Drivers for Future High-Density Power Electronics Applications

    SciTech Connect (OSTI)

    Whitaker, Mr. Bret [APEI, Inc.; Cole, Mr. Zach [APEI, Inc.; Passmore, Mr. Brandon [APEI, Inc.; Martin, Daniel [APEI, Inc.; Mcnutt, Tyler [APEI, Inc.; Lostetter, Dr. Alex [APEI, Inc.; Ericson, Milton Nance [ORNL; Frank, Steven Shane [ORNL; Britton Jr, Charles L [ORNL; Marlino, Laura D [ORNL; Mantooth, Alan [University of Arkansas; Francis, Dr. Matt [University of Arkansas; Lamichhane, Ranjan [University of Arkansas; Shepherd, Dr. Paul [University of Arkansas; Glover, Dr. Michael [University of Arkansas

    2015-01-01

    This paper presents the testing results of an all-silicon carbide (SiC) intelligent power module (IPM) for use in future high-density power electronics applications. The IPM has high-temperature capability and contains both SiC power devices and SiC gate driver integrated circuits (ICs). The high-temperature capability of the SiC gate driver ICs allows for them to be packaged into the power module and be located physically close to the power devices. This provides a distinct advantage by reducing the gate driver loop inductance, which promotes high frequency operation, while also reducing the overall volume of the system through higher levels of integration. The power module was tested in a bridgeless-boost converter to showcase the performance of the module in a system level application. The converter was initially operated with a switching frequency of 200 kHz with a peak output power of approximately 5 kW. The efficiency of the converter was then evaluated experimentally and optimized by increasing the overdrive voltage on the SiC gate driver ICs. Overall a peak efficiency of 97.7% was measured at 3.0 kW output. The converter s switching frequency was then increased to 500 kHz to prove the high frequency capability of the power module was then pushed to its limits and operated at a switching frequency of 500 kHz. With no further optimization of components, the converter was able to operate under these conditions and showed a peak efficiency of 95.0% at an output power of 2.1 kW.

  11. Water Power for a Clean Energy Future (Fact Sheet), Wind and Water Power

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics » USAJobs SearchAMERICA'S FUTURE.Projects at ArmyusingPeer ReviewsWater

  12. Preliminary assessment of high power, NERVA-class dual-mode space nuclear propulsion and power systems

    SciTech Connect (OSTI)

    Buksa, J.J.; Kirk, W.L.; Cappiello, M.W. (Nuclear Technology and Engineering Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87544 (US))

    1991-01-05

    A preliminary assessment of the technical feasibility and mass competitiveness of a dual-mode nuclear propulsion and power system based on the NERVA rocket engine has been completed. Results indicate that the coupling of the ROVER reactor to a direct Brayton power conversion system can be accomplished through a number of design features. Furthermore, based on previously published and independently calculated component masses, the dual-mode system was found to have the potential to be mass competitive with propulsion/power systems that use separate reactors. The uncertainties of reactor design modification and shielding requirements were identified as important issues requiring future investigation.

  13. 1/25/2014 Micro-Windmills Could Power Your Smartphone In The Future Consumerist http://consumerist.com/2014/01/14/micro-windmills-could-power-your-smartphone-in-the-future/ 1/2

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    1/25/2014 Micro-Windmills Could Power Your Smartphone In The Future ­ Consumerist http://consumerist.com/2014/01/14/micro-windmills-could-power-your-smartphone-in-the-future/ 1/2 Tell a friend: See that little thing above Lincoln's shoulder? That's apparently a working windmill, developed by engineering

  14. Carbon Dioxide Footprint of the Northwest Power System Comments submitted by Grant County Public Utility District

    E-Print Network [OSTI]

    Carbon Dioxide Footprint of the Northwest Power System Comments submitted by Grant County Public paper: Carbon Dioxide Footprint of the Northwest Power System, dated September 13, 2007. The Grant done a very thorough job of assessing the current and future carbon dioxide footprints of the Northwest

  15. Booster main magnet power supply, present operation and potential future upgrades

    SciTech Connect (OSTI)

    Bajon, E.; Bannon, M.; Marneris, I.; Danowski, G.; Sandberg, J.; Savatteri, S.

    2011-03-28

    The Brookhaven Booster Main Magnet Power Supply (MMPS) is a 24 pulse thyristor control supply, rated at 5500 Amps, +/-2000 Volts, or 3000 Amps, +/-6000 Volts. The power supply is fed directly from the power utility and the peak magnet power is 18 MWatts. This peak power is seen directly at the incoming ac line. This power supply has been in operation for the last 18 years. This paper will describe the present topology and operation of the power supply, the feedback control system and the different modes of operation of the power supply. Since the power supply has been in operation for the last 18 years, upgrading this power supply is essential. A new power supply topology has been studied where energy is stored in capacitor banks. DC to DC converters are used to convert the dc voltage stored in the capacitor banks to pulsed DC voltage into the magnet load. This enables the average incoming power from the ac line to be constant while the peak magnet power is pulsed to +/- 18 MWatts. Simulations and waveforms of this power supply will be presented.

  16. Doublet III neutral beam power system

    SciTech Connect (OSTI)

    Nerem, A.; Beal, J.W.; Colleraine, A.P.; LeVine, F.H.; Pipkins, J.F.; Remsen, D.B. Jr.; Tooker, J.F.; Varga, H.J.; Franck, J.V.

    1981-01-01

    The Doublet III neutral beam power system supplies pulsed power to the neutral beam injectors for plasma heating experiments on the Doublet III tokamak. The power supply system is connected to an ion source where the power is converted to an 80 kV, 80A, 0.5 sec beam of hydrogen ions at maximum power output. These energetic ions undergo partial neutralization via charge exchange in the beamline. The energetic neutral hydrogen atoms pass through the Doublet III toroidal and poloidal magnet fields and deposit their energy in the confined plasma. The unneutralized ions are deflected into a water-cooled dump. The entire system is interfaced through the neutral beam computer instrumentation and control system.

  17. Multi-Megawatt Power System Trade Study

    SciTech Connect (OSTI)

    Longhurst, Glen Reed; Schnitzler, Bruce Gordon; Parks, Benjamin Travis

    2001-11-01

    As part of a larger task, the Idaho National Engineering and Environmental Laboratory (INEEL) was tasked to perform a trade study comparing liquid-metal cooled reactors having Rankine power conversion systems with gas-cooled reactors having Brayton power conversion systems. This report summarizes the approach, the methodology, and the results of that trade study. Findings suggest that either approach has the possibility to approach the target specific mass of 3-5 kg/kWe for the power system, though it appears either will require improvements to achieve that. Higher reactor temperatures have the most potential for reducing the specific mass of gas-cooled reactors but do not necessarily have a similar effect for liquid-cooled Rankine systems. Fuels development will be the key to higher reactor operating temperatures. Higher temperature turbines will be important for Brayton systems. Both replacing lithium coolant in the primary circuit with gallium and replacing potassium with sodium in the power loop for liquid systems increase system specific mass. Changing the feed pump turbine to an electric motor in Rankine systems has little effect. Key technologies in reducing specific mass are high reactor and radiator operating temperatures, low radiator areal density, and low turbine/generator system masses. Turbine/generator mass tends to dominate overall power system mass for Rankine systems. Radiator mass was dominant for Brayton systems.

  18. Thermoacoustic power systems for space applications

    SciTech Connect (OSTI)

    Backhaus, S. N.; Tward, E.; Pedach, M.

    2001-01-01

    Future NASA deep-space missions will require radioisotope-powered electric generators that are just as reliable as current RTGs, but more efficient and of higher specific power (W/kg). Thermoacoustic engines can convert high-temperature heat into acoustic, or PV, power without moving parts at 30% efficiency. Consisting of only tubes and a few heat exchangers, these engines are low mass and promise to be highly reliable. Coupling a thermoacoustic engine to a low-mass, highly reliable and efficient linear alternator will create a heat-driven electric generator suitable for deep-space applications. Data will be presented on the first tests of a demonstration thermoacoustic engine designed for the 100-Watt power range.

  19. Parallel Implementation of Power System Dynamic Simulation

    SciTech Connect (OSTI)

    Jin, Shuangshuang; Huang, Zhenyu; Diao, Ruisheng; Wu, Di; Chen, Yousu

    2013-07-21

    Dynamic simulation of power system transient stability is important for planning, monitoring, operation, and control of electrical power systems. However, modeling the system dynamics and network involves the computationally intensive time-domain solution of numerous differential and algebraic equations (DAE). This results in a transient stability implementation that may not maintain the real-time constraints of an online security assessment. This paper presents a parallel implementation of the dynamic simulation on a high-performance computing (HPC) platform using parallel simulation algorithms and computation architectures. It enables the simulation to run even faster than real time, enabling the “look-ahead” capability of upcoming stability problems in the power grid.

  20. Parallel Computing Environments and Methods for Power Distribution System Simulation

    SciTech Connect (OSTI)

    Lu, Ning; Taylor, Zachary T.; Chassin, David P.; Guttromson, Ross T.; Studham, Scott S.

    2005-11-10

    The development of cost-effective high-performance parallel computing on multi-processor super computers makes it attractive to port excessively time consuming simulation software from personal computers (PC) to super computes. The power distribution system simulator (PDSS) takes a bottom-up approach and simulates load at appliance level, where detailed thermal models for appliances are used. This approach works well for a small power distribution system consisting of a few thousand appliances. When the number of appliances increases, the simulation uses up the PC memory and its run time increases to a point where the approach is no longer feasible to model a practical large power distribution system. This paper presents an effort made to port a PC-based power distribution system simulator (PDSS) to a 128-processor shared-memory super computer. The paper offers an overview of the parallel computing environment and a description of the modification made to the PDSS model. The performances of the PDSS running on a standalone PC and on the super computer are compared. Future research direction of utilizing parallel computing in the power distribution system simulation is also addressed.

  1. Electric Power System Asset Optimization

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansas Nuclear ProfileMultiferroic Electric

  2. Dynamic Reactive Power Control of Isolated Power Systems 

    E-Print Network [OSTI]

    Falahi, Milad

    2012-10-03

    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...

  3. The role of actinide burning and the Integral Fast Reactor in the future of nuclear power

    SciTech Connect (OSTI)

    Hollaway, W.R.; Lidsky, L.M.; Miller, M.M.

    1990-12-01

    A preliminary assessment is made of the potential role of actinide burning and the Integral Fast Reactor (IFR) in the future of nuclear power. The development of a usable actinide burning strategy could be an important factor in the acceptance and implementation of a next generation of nuclear power. First, the need for nuclear generating capacity is established through the analysis of energy and electricity demand forecasting models which cover the spectrum of bias from anti-nuclear to pro-nuclear. The analyses take into account the issues of global warming and the potential for technological advances in energy efficiency. We conclude, as do many others, that there will almost certainly be a need for substantial nuclear power capacity in the 2000--2030 time frame. We point out also that any reprocessing scheme will open up proliferation-related questions which can only be assessed in very specific contexts. The focus of this report is on the fuel cycle impacts of actinide burning. Scenarios are developed for the deployment of future nuclear generating capacity which exploit the advantages of actinide partitioning and actinide burning. Three alternative reactor designs are utilized in these future scenarios: The Light Water Reactor (LWR); the Modular Gas-Cooled Reactor (MGR); and the Integral Fast Reactor (FR). Each of these alternative reactor designs is described in some detail, with specific emphasis on their spent fuel streams and the back-end of the nuclear fuel cycle. Four separation and partitioning processes are utilized in building the future nuclear power scenarios: Thermal reactor spent fuel preprocessing to reduce the ceramic oxide spent fuel to metallic form, the conventional PUREX process, the TRUEX process, and pyrometallurgical reprocessing.

  4. Combined Heat and Power: A Decade of Progress, A Vision for the Future

    SciTech Connect (OSTI)

    none,

    2009-08-01

    Over the past 10 years, DOE has built a solid foundation for a robust CHP marketplace. We have aligned with key partners to produce innovative technologies and spearhead market-transforming projects. Our commercialization activities and Clean Energy Regional Application Centers have expanded CHP across the nation. More must be done to tap CHP’s full potential. Read more about DOE’s CHP Program in “Combined Heat and Power: A Decade of Progress, A Vision for the Future.”

  5. Water Power For a Clean Energy Future Cover Photo | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics » USAJobs SearchAMERICA'S FUTURE.Projects at Armyusing FueleffectiveWater Power

  6. NREL: Energy Systems Integration - NREL's Power Systems Research...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NREL's research in power systems. J. Weber - Progress on Structured Innovation in Wave Energy Converter Technology Development M. Lawson - Developing Numerical Modeling...

  7. Visions of Future Intelligent Power Grids: Synergies for Collaboration Between the European Union and the United States

    SciTech Connect (OSTI)

    Coll-Mayor, Debora; Paget, Mia L.; Lightner, Eric M.; Sanchez-Jimenez, Manuel

    2007-01-01

    The future of power grids is expected to involve an increasing level of intelligence and integration of new information and communication technologies in every aspect of the electricity system, from demand-side devices to wide-scale distributed generation to a variety of energy markets. The vision of this future in the United States and the European Union is known as GridWiseTM and SmartGrid, respectively. The results of the examination of similarities and complementarities of the two research programs are presented in this paper. Within the framework of a solid precedence for trans-Atlantic cooperation in energy research, the time would seem optimal to set in motion active collaboration and educational exchange on GridWise and SmartGrid research. This paper will provide energy professionals with a comparison of the solutions developed in each case, to be aware of trans-Atlantic approaches, opportunities, and resources looking toward future, more intelligent and interconnected power grids.

  8. Investigation of Multi-Frequency Power Transmission and System 

    E-Print Network [OSTI]

    Barazarte Conte, Ronald

    2012-10-19

    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...

  9. Advanced Power Systems and Controls Laboratory

    E-Print Network [OSTI]

    Ben-Yakar, Adela

    photovoltaic generation facility. Solar panel output is in white, and the response of the XP DPR is in red 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

  10. Distributed Energy Management for Electric Power Systems

    E-Print Network [OSTI]

    Distributed Energy Management for Electric Power Systems Gabriela Hug, ghug@ece.cmu.edu Soummya Kar Theory Power flow control Consensus + Innovation Approach Theory Energy Management Conclusions 2 #12 line flows Tertiary Control => Energy Energy source scheduling including generator and storage

  11. Heat and Power Systems Design 

    E-Print Network [OSTI]

    Spriggs, H. D.; Shah, J. V.

    1987-01-01

    variable pattern of energy consumption as individual batches are started up or turned down. Important management considerations are product quality and operating flexiblity. The first step is to identify individual heating and cooling requirements... stream_source_info ESL-IE-87-09-05.pdf.txt stream_content_type text/plain stream_size 19552 Content-Encoding ISO-8859-1 stream_name ESL-IE-87-09-05.pdf.txt Content-Type text/plain; charset=ISO-8859-1 HEAT AND POWER...

  12. National Renewable Energy Laboratory's Hydrogen Technologies and Systems Center is Helping to Facilitate the Transition to a New Energy Future

    SciTech Connect (OSTI)

    Not Available

    2011-01-01

    The Hydrogen Technologies and Systems Center (HTSC) at the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) uses a systems engineering and integration approach to hydrogen research and development to help the United States make the transition to a new energy future - a future built on diverse and abundant domestic renewable resources and integrated hydrogen systems. Research focuses on renewable hydrogen production, delivery, and storage; fuel cells and fuel cell manufacturing; technology validation; safety, codes, and standards; analysis; education; and market transformation. Hydrogen can be used in fuel cells to power vehicles and to provide electricity and heat for homes and offices. This flexibility, combined with our increasing demand for energy, opens the door for hydrogen power systems. HTSC collaborates with DOE, other government agencies, industry, communities, universities, national laboratories, and other stakeholders to promote a clean and secure energy future.

  13. Renewable Energy Powered Water Treatment Systems 

    E-Print Network [OSTI]

    Richards, Bryce S.; Schäfer, Andrea

    2009-01-01

    There are many motivations for choosing renewable energy technologies to provide the necessary energy to power water treatment systems for reuse and desalination. These range from the lack of an existing electricity grid, ...

  14. Low-Maintenance Wind Power System

    E-Print Network [OSTI]

    Rasson, Joseph E

    2010-01-01

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

  15. Combined Heat and Power System Increases Reliability

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

    and govern- ment agencies to install innovative systems to ease demand on the state's power grid. The U.S. Department of Energy (DOE), in partnership with the Energy Solutions...

  16. Dynamic modeling issues for power system applications 

    E-Print Network [OSTI]

    Song, Xuefeng

    2005-02-17

    Power system dynamics are commonly modeled by parameter dependent nonlinear differential-algebraic equations (DAE) x ???p y x f ) and 0 = p y x g ) . Due to (,, (,, the algebraic constraints, we cannot directly perform...

  17. Catalog of DC Appliances and Power Systems

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01

    main conclusions about off-grid markets for DC appliances,and power systems. Mature Off-Grid Markets for DC Appliancesapplications include off-grid residential, telecom, remote

  18. Catalog of DC Appliances and Power Systems

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01

    Ovens Electric Heat Pumps Geothermal Heat Pumps Solar WaterOvens Appliance DC-internal product power (Watts) Personal Computers and Related Equipment Rechargeable Electronics Refrigerators Room Air Conditioners Security Systems Solar

  19. Investigation of expert system application to spacecraft power system control

    SciTech Connect (OSTI)

    Pistole, C.; Bein, J.

    1984-08-01

    This paper addresses the application of expert systems to spacecraft power system control through investigation of two salient technical issues. These are the maximum speed of an expert system, and interaction between the expert system and transient phenomena. The basis of this discussion will be test data obtained through development of the Fault Isolation Expert System (FIES) at Martin Marietta Aerospace Denver. The expert system was tested to determine the minimum time required to clear a power system fault. This response time will be compared to conventional fault handling techniques, and analyzed to determine the maximum bandwidth of the system to be controlled. The second issue to be investigated is the relationship between expert system speed and power system transients. Specifically, FIES is intended to deal with quasi steady state inputs only. Therefore, expert system inputs must be filtered to eliminate the interaction between the expert system and transient phenomena. This paper will discuss the considerations involved in the tailoring of inputs.

  20. Solar Power Systems Web Monitoring

    E-Print Network [OSTI]

    Kumar, Bimal Aklesh

    2011-01-01

    All over the world the peak demand load is increasing and the load factor is decreasing year-by-year. The fossil fuel is considered insufficient thus solar energy systems are becoming more and more useful, not only in terms of installation but monitoring of these systems is very crucial. Monitoring becomes very important when there are a large number of solar panels. Monitoring would allow early detection if the output falls below required level or one of the solar panel out of 1000 goes down. In this study the target is to monitor and control a developed solar panel by using available internet foundation. This web-enabled software will provide more flexibility over the system such as transmitting data from panel to the host computer and disseminating information to relevant stake holders barring any geographical barrier. The software would be built around web server with dynamic HTML and JAVA, this paper presents the preliminary design of the proposed system.

  1. Systems analysis of past, present, and future chemical terrorism scenarios.

    SciTech Connect (OSTI)

    Hoette, Trisha Marie

    2012-03-01

    Throughout history, as new chemical threats arose, strategies for the defense against chemical attacks have also evolved. As a part of an Early Career Laboratory Directed Research and Development project, a systems analysis of past, present, and future chemical terrorism scenarios was performed to understand how the chemical threats and attack strategies change over time. For the analysis, the difficulty in executing chemical attack was evaluated within a framework of three major scenario elements. First, historical examples of chemical terrorism were examined to determine how the use of chemical threats, versus other weapons, contributed to the successful execution of the attack. Using the same framework, the future of chemical terrorism was assessed with respect to the impact of globalization and new technologies. Finally, the efficacy of the current defenses against contemporary chemical terrorism was considered briefly. The results of this analysis justify the need for continued diligence in chemical defense.

  2. Variable pressure power cycle and control system

    DOE Patents [OSTI]

    Goldsberry, Fred L. (Spring, TX)

    1984-11-27

    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.

  3. Wireless Technologies Implications for Power Systems

    SciTech Connect (OSTI)

    Fuhr, Peter L; Manges, Wayne W; Schweitzer, Patrick; Kagan, Hesh

    2010-01-01

    Wireless technologies have advanced well beyond simple SCADA radio systems and point-to-point links. The current applications supported by industrial-grade wireless sensors and systems range from field measurements (classic I/O) to voice, video, asset tracking, mobile operators, etc. Which such a wide array of supported applications, the belief that wireless technology will only impact power systems in terms of wireless sensors is shortsighted. This paper, coauthored by a group of individuals intimately involved in the general realm of industrial wireless , presents a simple snapshot of current radio technologies that are used (or seriously contemplated for use) in power systems.

  4. Load frequency control of interconnected power systems with system constraints 

    E-Print Network [OSTI]

    Choudhury, Md Ershadul H

    1993-01-01

    So far, researches in load frequency controls ( LFC) are involved in analysis of dynamic responses under normal conditions of the - interconnected power systems. In This research considers some system constraints (for example, one area fails...

  5. Heavy Vehicle Essential Power Systems Workshop

    SciTech Connect (OSTI)

    Susan Rogers

    2001-12-12

    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.

  6. Manzanita Hybrid Power system Project Final Report

    SciTech Connect (OSTI)

    Trisha Frank

    2005-03-31

    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.

  7. Small geothermal electric systems for remote powering

    SciTech Connect (OSTI)

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

    1994-08-08

    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.

  8. Efficient Power System State Estimation

    E-Print Network [OSTI]

    Lavaei, Javad

    failure or generator outages. In the normal insecure state, a system may not be able to handle to be normal, when in reality it is not. Then the employees at the control center would not be able to act preemptively to alleviate any situations on the ground. They might find out too late, when there are already

  9. Power System Extreme Event Detection: The Vulnerability Frontier

    E-Print Network [OSTI]

    Lesieutre, Bernard C.; Pinar, Ali; Roy, Sandip

    2007-01-01

    Contingencies in Electric Power Networks,” proceedings ofthe North American Power Symposium, Ames, IA, OctoberScreening in Electric Power Systems,” submitted to the IEEE

  10. Fossil Power Plant Applications of Expert Systems: An EPRI Perspective 

    E-Print Network [OSTI]

    Divakaruni, S. M.

    1989-01-01

    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....

  11. Electricity for road transport, flexible power systems and wind...

    Open Energy Info (EERE)

    Electricity for road transport, flexible power systems and wind power (Smart Grid Project) Jump to: navigation, search Project Name Electricity for road transport, flexible power...

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

    E-Print Network [OSTI]

    Khadkikar, Vinod

    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 ...

  13. Advance Three Phase Power Factor Correction Schemes for Utility Interface of Power Electronic Systems 

    E-Print Network [OSTI]

    Albader, Mesaad

    2014-07-30

    Modern power electronic systems operate with different voltage and/or frequency rating such as Adjustable speed drive, Micro Grid, Uninterruptable Power Supplies (UPS) and High Voltage DC Transmission Systems. To match power electronic systems...

  14. Multi Megawatt Power System Analysis Report

    SciTech Connect (OSTI)

    Longhurst, Glen Reed; Harvego, Edwin Allan; Schnitzler, Bruce Gordon; Seifert, Gary Dean; Sharpe, John Phillip; Verrill, Donald Alan; Watts, Kenneth Donald; Parks, Benjamin Travis

    2001-11-01

    Missions to the outer planets or to near-by planets requiring short times and/or increased payload carrying capability will benefit from nuclear power. A concept study was undertaken to evaluate options for a multi-megawatt power source for nuclear electric propulsion. The nominal electric power requirement was set at 15 MWe with an assumed mission profile of 120 days at full power, 60 days in hot standby, and another 120 days of full power, repeated several times for 7 years of service. Of the numerous options considered, two that appeared to have the greatest promise were a gas-cooled reactor based on the NERVA Derivative design, operating a closed cycle Brayton power conversion system; and a molten lithium-cooled reactor based on SP-100 technology, driving a boiling potassium Rankine power conversion system. This study examined the relative merits of these two systems, seeking to optimize the specific mass. Conclusions were that either concept appeared capable of approaching the specific mass goal of 3-5 kg/kWe estimated to be needed for this class of mission, though neither could be realized without substantial development in reactor fuels technology, thermal radiator mass efficiency, and power conversion and distribution electronics and systems capable of operating at high temperatures. Though the gas-Brayton systems showed an apparent advantage in specific mass, differences in the degree of conservatism inherent in the models used suggests expectations for the two approaches may be similar. Brayton systems eliminate the need to deal with two-phase flows in the microgravity environment of space.

  15. Calibrating the Nonlinear Matter Power Spectrum: Requirements for Future Weak Lensing Surveys

    E-Print Network [OSTI]

    Dragan Huterer; Masahiro Takada

    2005-06-01

    Uncertainties in predicting the nonlinear clustering of matter are among the most serious theoretical systematics facing the upcoming wide-field weak gravitational lensing surveys. We estimate the accuracy with which the matter power spectrum will need to be calibrated in order not to contribute appreciably to the error budget for future weak lensing surveys. We consider the random statistical errors and the systematic biases in P(k), as well as some estimates based on current N-body simulations. While the power spectrum on relevant scales (0.1 < k/h Mpc^{-1} < 10) is currently calibrated with N-body simulations to about 5-10%, in the future it will have to be calibrated to about 1-2% accuracy, depending on the specifications of the survey. Encouragingly, we find that even the worst-case error that mimics the effect of cosmological parameters needs to be calibrated to no better than about 0.5-1%. These goals require a suite of high resolution N-body simulations on a relatively fine grid in cosmological parameter space, and should be achievable in the near future.

  16. Renewable Electricity Futures Study

    E-Print Network [OSTI]

    Renewable Electricity Futures Study Bulk Electric Power Systems: Operations and Transmission by the Alliance for Sustainable Energy, LLC. #12;Renewable Electricity Futures Study Edited By Hand, M.M. National Suggested Citations Renewable Electricity Futures Study (Entire Report) National Renewable Energy Laboratory

  17. TidGen Power System Commercialization Project

    SciTech Connect (OSTI)

    Sauer, Christopher R.; McEntee, Jarlath

    2013-12-30

    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.

  18. Some optimization problems in power system reliability analysis 

    E-Print Network [OSTI]

    Jirutitijaroen, Panida

    2009-05-15

    This dissertation aims to address two optimization problems involving power system reliabilty analysis, namely multi-area power system adequacy planning and transformer maintenance optimization. A new simulation method for power system reliability...

  19. Optimal monitoring and visualization of steady state power system operation 

    E-Print Network [OSTI]

    Xu, Bei

    2009-06-02

    Power system operation requires accurate monitoring of electrical quantities and a reliable database of the power system. As the power system operation becomes more competitive, the secure operation becomes highly important ...

  20. Solar thermal power systems. Annual technical progress report, FY 1979

    SciTech Connect (OSTI)

    Braun, Gerald W.

    1980-06-01

    The Solar Thermal Power Systems Program is the key element in the national effort to establish solar thermal conversion technologies within the major sectors of the national energy market. It provides for the development of concentrating mirror/lens heat collection and conversion technologies for both central and dispersed receiver applications to produce electricity, provide heat at its point of use in industrial processes, provide heat and electricity in combination for industrial, commercial, and residential needs, and ultimately, drive processes for production of liquid and gaseous fuels. This report is the second Annual Technical Progress Report for the Solar Thermal Power Systems Program and is structured according to the organization of the Solar Thermal Power Systems Program on September 30, 1979. Emphasis is on the technical progress of the projects rather than on activities and individual contractor efforts. Each project description indicates its place in the Solar Thermal Power Systems Program, a brief history, the significant achievements and real progress during FY 1979, also future project activities as well as anticipated significant achievements are forecast. (WHK)

  1. Naturalistic Decision Making For Power System Operators

    SciTech Connect (OSTI)

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

    2009-06-23

    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.

  2. Project Profile: Brayton Solar Power Conversion System | Department...

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

    Solar Power Conversion System Project Profile: Brayton Solar Power Conversion System Brayton Energy logo Brayton Energy, under the CSP R&D FOA, is looking to demonstrate the...

  3. Ultra Efficient Combined Heat, Hydrogen, and Power System - Presentati...

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

    Ultra Efficient Combined Heat, Hydrogen, and Power System - Presentation by FuelCell Energy, June 2011 Ultra Efficient Combined Heat, Hydrogen, and Power System - Presentation by...

  4. Demonstration of a Variable Phase Turbine Power System for Low...

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

    Demonstration of a Variable Phase Turbine Power System for Low Temperature Geothermal Resources Demonstration of a Variable Phase Turbine Power System for Low Temperature...

  5. Linear Concentrator System Basics for Concentrating Solar Power...

    Office of Environmental Management (EM)

    Linear Concentrator System Basics for Concentrating Solar Power Linear Concentrator System Basics for Concentrating Solar Power August 20, 2013 - 4:45pm Addthis Photo of numerous...

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

    Open Energy Info (EERE)

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

  7. Coal Power Systems strategic multi-year program plans

    SciTech Connect (OSTI)

    None

    2001-02-01

    The Department of Energy's (DOE) Office of Fossil Energy (FE), through the Coal and Power Systems (C and PS) program, funds research to advance the scientific knowledge needed to provide new and improved energy technologies; to eliminate any detrimental environmental effects of energy production and use; and to maintain US leadership in promoting the effective use of US power technologies on an international scale. Further, the C and PS program facilitates the effective deployment of these technologies to maximize their benefits to the Nation. The following Strategic Plan describes how the C and PS program intends to meet the challenges of the National Energy Strategy to: (1) enhance American's energy security; (2) improve the environmental acceptability of energy production and use; (3) increase the competitiveness and reliability of US energy systems; and (4) ensure a robust US energy future. It is a plan based on the consensus of experts and managers from FE's program offices and the National Energy Technology Laboratory (NETL).

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

    DOE Patents [OSTI]

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

    2008-06-24

    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.

  9. Prospects for attractive fusion power systems By Farrokh Najmabadi

    E-Print Network [OSTI]

    Najmabadi, Farrokh

    92093-0417, USA As one of the alternative sources of energy for the future, fusion power must demon of energy. However, as one of the alternative sources of energy for the future, fusion power and Computer Engineering and Fusion Energy Research Program, University of California, San Diego, La Jolla, CA

  10. A novel power block for CSP systems

    SciTech Connect (OSTI)

    Mittelman, Gur; Epstein, Michael

    2010-10-15

    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)

  11. Modeling Power System Operation with Intermittent Resources

    SciTech Connect (OSTI)

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

    2013-02-27

    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.

  12. Radiation beam calorimetric power measurement system

    DOE Patents [OSTI]

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

    1992-01-01

    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.

  13. Demand Response For Power System Reliability: FAQ

    SciTech Connect (OSTI)

    Kirby, Brendan J [ORNL

    2006-12-01

    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.

  14. Future Directions in Control, Dynamics, and Systems: Overview, Grand Challenges, and New Courses

    E-Print Network [OSTI]

    Murray, Richard M.

    Future Directions in Control, Dynamics, and Systems: Overview, Grand Challenges, and New Courses and recommendations of a recent panel on Future Di- rections in Control, Dynamics, and Systems, sponsored by the US on Future Directions in Control and Dynamical Systems was formed to prepare a report to provide a renewed

  15. A New Power Combining and Outphasing Modulation System for High-Efficiency Power Amplification

    E-Print Network [OSTI]

    Perreault, Dave

    1 A New Power Combining and Outphasing Modulation System for High- Efficiency Power Amplification David J. Perreault Massachusetts Institute of Technology Abstract---This paper describes a new power conventional outphasing systems utilize two power amplifiers, the system introduced here combines power from

  16. A New Power Combining and Outphasing Modulation System for High-Efficiency Power Amplification

    E-Print Network [OSTI]

    Perreault, Dave

    A New Power Combining and Outphasing Modulation System for High- Efficiency Power Amplification David J. Perreault Massachusetts Institute of Technology Abstract---This paper describes a new power conventional outphasing systems utilize two power amplifiers, the system introduced here combines power from

  17. Diesel Futures Forget the black soot and smoke. Modern diesel-powered cars are quiet, clean and fast.

    E-Print Network [OSTI]

    Diesel Futures Forget the black soot and smoke. Modern diesel-powered cars are quiet, clean at their tachometers to be sure that they were running. You would not expect that of a diesel, however. Yet these are diesel engines. The world has been looking to gas/electric hybrids and fuel cells for future fuel

  18. Hybrid electric vehicle power management system

    DOE Patents [OSTI]

    Bissontz, Jay E.

    2015-08-25

    Level voltage levels/states of charge are maintained among a plurality of high voltage DC electrical storage devices/traction battery packs that are arrayed in series to support operation of a hybrid electric vehicle drive train. Each high voltage DC electrical storage device supports a high voltage power bus, to which at least one controllable load is connected, and at least a first lower voltage level electrical distribution system. The rate of power transfer from the high voltage DC electrical storage devices to the at least first lower voltage electrical distribution system is controlled by DC-DC converters.

  19. Present and future nuclear power generation as a reflection of individual countries' resources and objectives

    SciTech Connect (OSTI)

    Borg, I.Y.

    1987-06-26

    The nuclear reactor industry has been in a state of decline for more than a decade in most of the world. The reasons are numerous and often unique to the energy situation of individual countries. Two commonly cited issues influence decisions relating to construction of reactors: costs and the need, or lack thereof, for additional generating capacity. Public concern has ''politicized'' the nuclear industry in many non-communist countries, causing a profound effect on the economics of the option. The nuclear installations and future plans are reviewed on a country-by-country basis for 36 countries in the light of the resources and objectives of each. Because oil and gas for power production throughout the world are being phased out as much as possible, coal-fired generation currently tends to be the chosen alternative to nuclear power production. Exceptions occur in many of the less developed countries that collectively have a very limited operating experience with nuclear reactors. The Chernobyl accident in the USSR alarmed the public; however, national strategies and plans to build reactors have not changed markedly in the interim. Assuming that the next decade of nuclear power generation is uneventful, additional electrical demand would cause the nuclear power industry to experience a rejuvenation in Europe as well as in the US. 80 refs., 3 figs., 22 tabs.

  20. Strategic planning for power system restorations

    SciTech Connect (OSTI)

    Bent, Russell W; Van Hententyck, Pascal; Coffrin, Carleton

    2010-10-12

    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.

  1. Microsoft Word - Future Power Systems 20 - The Smart Enterprise...

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

    saturdays, sundays and bank holidays) by season (summer and winter) to give a base demand profile and weather related demand variation equations for each point. For...

  2. EPRI maps out power system of the future

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    EPRI rolled out its "Integrated Grid" concept that aims to provide utilities with a roadmap to optimally incorporating distributed energy resources like solar and demand-side...

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

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-inPPLforLDRD Report11, SolarMat 4" | Department ofMotors |Furnaces

  4. LED lamp power management system and method

    DOE Patents [OSTI]

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

    2013-03-19

    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.

  5. Optimization and Control of Electric Power Systems

    SciTech Connect (OSTI)

    Lesieutre, Bernard C.; Molzahn, Daniel K.

    2014-10-17

    The analysis and optimization needs for planning and operation of the electric power system are challenging due to the scale and the form of model representations. The connected network spans the continent and the mathematical models are inherently nonlinear. Traditionally, computational limits have necessitated the use of very simplified models for grid analysis, and this has resulted in either less secure operation, or less efficient operation, or both. The research conducted in this project advances techniques for power system optimization problems that will enhance reliable and efficient operation. The results of this work appear in numerous publications and address different application problems include optimal power flow (OPF), unit commitment, demand response, reliability margins, planning, transmission expansion, as well as general tools and algorithms.

  6. Nuclear Energy Research Initiative. Risk Informed Assessment of Regulatory and Design Requirements for Future Nuclear Power Plants. Annual Report

    SciTech Connect (OSTI)

    Ritterbusch, S.E.

    2000-08-01

    The overall goal of this research project is to support innovation in new nuclear power plant designs. This project is examining the implications, for future reactors and future safety regulation, of utilizing a new risk-informed regulatory system as a replacement for the current system. This innovation will be made possible through development of a scientific, highly risk-informed approach for the design and regulation of nuclear power plants. This approach will include the development and.lor confirmation of corresponding regulatory requirements and industry standards. The major impediment to long term competitiveness of new nuclear plants in the U.S. is the capital cost component--which may need to be reduced on the order of 35% to 40% for Advanced Light Water Reactors (ALWRs) such as System 80+ and Advanced Boiling Water Reactor (ABWR). The required cost reduction for an ALWR such as AP600 or AP1000 would be expected to be less. Such reductions in capital cost will require a fundamental reevaluation of the industry standards and regulatory bases under which nuclear plants are designed and licensed. Fortunately, there is now an increasing awareness that many of the existing regulatory requirements and industry standards are not significantly contributing to safety and reliability and, therefore, are unnecessarily adding to nuclear plant costs. Not only does this degrade the economic competitiveness of nuclear energy, it results in unnecessary costs to the American electricity consumer. While addressing these concerns, this research project will be coordinated with current efforts of industry and NRC to develop risk-informed, performance-based regulations that affect the operation of the existing nuclear plants; however, this project will go farther by focusing on the design of new plants.

  7. ARIZONA STATE UNIVERSITY POWER SYSTEMS ENGINEERING RESEARCH CENTER

    E-Print Network [OSTI]

    , electric power quality indices, and a new proposed index to compare nonsinusoidal signals. #12;TABLEARIZONA STATE UNIVERSITY POWER SYSTEMS ENGINEERING RESEARCH CENTER SYMBOLIC DYNAMIC MODELS FOR HIGHLY VARYING POWER SYSTEM LOADS Diwakar Tewari February, 2002 #12;ABSTRACT Representation and modeling

  8. Wind Farm Power System Model Development: Preprint

    SciTech Connect (OSTI)

    Muljadi, E.; Butterfield, C. P.

    2004-07-01

    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.

  9. Visualization of Power Systems Final Project Report

    E-Print Network [OSTI]

    in this report was sponsored by the Power Systems Engineering Research Center (PSERC) and the U.S. DOE through, and by the U.S. DOE CERTS program. We would also like to thank the many industrial advisors who helped

  10. Sensitivity Analysis of Dynamic Stability Indicators in Power Systems

    SciTech Connect (OSTI)

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

    2006-01-01

    Real time stability evaluation and preventive scheduling in power systems offers many challenges in a stressed power system. Through fast simulation of contingencies in real time it is possible to extract suitable information from the data and develop reliable metrics or indices to evaluate proximity of the system to an unstable condition. In this chapter we review the recent applications of the trajectory sensitivity analysis (TSA) technique in developing such indicators. Trajectory sensitivities can be used to compute critical parameters such as clearing time of circuit breakers, tie line flow, etc. in a power system by developing suitable norms for ease of interpretation. Alternatively it can be used along with the notion of Principal Singular Surfaces (PSS) to detect mode of instability (MOI). The TSA technique has the advantage that model complexity is not a limitation and the sensitivities are computed numerically. Suitable metrics are developed from these sensitivities. In addition to computing critical parameters, the TSA technique can be extended to do preventive rescheduling. A brief discussion of other applications of TSA is included as well as future areas of research.

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

    SciTech Connect (OSTI)

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

    2011-10-01

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

  12. Human Factors Aspects of Power System Flow Animation

    E-Print Network [OSTI]

    Human Factors Aspects of Power System Flow Animation Douglas A. Wiegmann, Gavin R. Essenberg experimental results associated with human factors aspects of using animation to display electric power system. Index Terms--Power System Operations and Planning, Power System Visualization, Animation, Human Factors

  13. Rethinking the Future Grid: Integrated Nuclear Renewable Energy Systems: Preprint

    SciTech Connect (OSTI)

    Bragg-Sitton, S. M.; Boardman, R.; Ruth, M.; Zinaman, O.; Forsberg, C.

    2015-01-01

    The U.S. DOE is supporting research and development that could lead to more efficient utilization of clean energy generation sources, including renewable and nuclear options, to meet both grid demand and thermal energy needs in the industrial sector. One concept under consideration by the DOE-NE and DOE-EERE is tighter coupling of nuclear and renewable energy sources in a manner that better optimizes energy use for the combined electricity, industrial manufacturing, and transportation sectors. This integration concept has been referred to as a 'hybrid system' that is capable of apportioning thermal and electrical energy to first meet the grid demand (with appropriate power conversion systems), then utilizing excess thermal and, in some cases, electrical energy to drive a process that results in an additional product.

  14. The Future of Combustion Turbine Technology for Industrial and Utility Power Generation 

    E-Print Network [OSTI]

    Karp, A. D.; Simbeck, D. R.

    1994-01-01

    Low capital cost and ample low-cost natural gas supplies will make natural gas-fired combustion turbine systems the power generation technology of choice over the next decade. Against the background of earlier use by electric utilities, this paper...

  15. On the nature of unstable equilibrium points in power systems

    SciTech Connect (OSTI)

    Berggren, B.; Andersson, G. . Dept. of Electric Power Systems)

    1993-05-01

    This paper concerns the application of direct methods for transient stability analysis of stressed power systems. One of the most important issues in this area is to find the controlling unstable equilibrium point for the disturbance under consideration. This paper provides a conceptual framework for discussing stable and unstable equilibrium points in power systems based on simple topological arguments. It is for instance shown that every conceivable case of system separation can be related to a specific unstable equilibrium point (u.e.p) in an unloaded system. This result can be seen as a verification of the soundness of the often used corrected corner point approximation and ray point approximation, since these two approximations would give the same unstable equilibrium points in an unloaded system. Moreover, it is shown, by an example, that some of these unstable equilibrium points can disappear when the loading of the system increases. The implications of the findings of this paper are discussed for the so-called MOD method of finding the controlling u.e.p., which is used in some software packages. Finally, a method based on a combination of MOD method and the BCU method is outlined and proposed as the subject of future investigation.

  16. High Power UV LED Industrial Curing Systems

    SciTech Connect (OSTI)

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

    2012-05-14

    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.

  17. Solid oxide fuel cell power system development

    SciTech Connect (OSTI)

    Kerr, Rick; Wall, Mark; Sullivan, Neal

    2015-06-26

    This report summarizes the progress made during this contractual period in achieving the goal of developing the solid oxide fuel cell (SOFC) cell and stack technology to be suitable for use in highly-efficient, economically-competitive, commercially deployed electrical power systems. Progress was made in further understanding cell and stack degradation mechanisms in order to increase stack reliability toward achieving a 4+ year lifetime, in cost reduction developments to meet the SECA stack cost target of $175/kW (in 2007 dollars), and in operating the SOFC technology in a multi-stack system in a real-world environment to understand the requirements for reliably designing and operating a large, stationary power system.

  18. Solar-powered turbocompressor heat pump system

    DOE Patents [OSTI]

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

    1982-08-12

    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.

  19. Tokamak power systems studies, FY 1985

    SciTech Connect (OSTI)

    Baker, C.C.; Brooks, J.N.; Ehst, D.A.; Smith, D.L.; Sze, D.K.

    1985-12-01

    The Tokamak Power System Studies (TPSS) at ANL in FY-1985 were devoted to exploring innovative design concepts which have the potential for making substantial improvements in the tokamak as a commercial power reactor. Major objectives of this work included improved reactor economics, improved environmental and safety features, and the exploration of a wide range of reactor plant outputs with emphasis on reduced plant sizes compared to STARFIRE. The activities concentrated on three areas: plasma engineering, impurity control, and blanket/first wall/shield technology. 205 refs., 125 figs., 107 tabs.

  20. Polk power station syngas cooling system

    SciTech Connect (OSTI)

    Jenkins, S.D.

    1995-01-01

    Tampa Electric Company (TEC) is in the site development and construction phase of the new Polk Power Station Unit No. 1. This will be the first unit at a new site and will use Integrated Gasification Combined Cycle (IGCC) Technology. The unit will utilize Texaco`s oxygen-blown, entrained-flow coal gasification, along with combined cycle power generation, to produce nominal 260MW. Integral to the gasification process is the syngas cooling system. The design, integration, fabrication, transportation, and erection of this equipment have provided and continue to provide major challenges for this project.

  1. Nuclear power systems for Lunar and Mars exploration

    SciTech Connect (OSTI)

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

    1994-09-01

    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.

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

    SciTech Connect (OSTI)

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

    1991-12-31

    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.

  3. Test report : Princeton power systems prototype energy storage system.

    SciTech Connect (OSTI)

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

    2013-08-01

    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.

  4. Future waste treatment and energy systems – examples of joint scenarios

    SciTech Connect (OSTI)

    Münster, M., E-mail: maem@dtu.dk [System Analysis Division, DTU Management Engineering, Technical University of Denmark, Frederiksborgvej 399, 4000 Roskilde (Denmark); Finnveden, G. [KTH Royal Institute of Technology, School of Architecture and the Built Environment, Department of Planning and Environment, Division of Environmental Strategies Research – fms, 100 44 Stockholm (Sweden); Wenzel, H. [Institute of Chemical Engineering, Biotechnology and Environmental Technology, University of Southern Denmark, Niels Bohrs Allé 1, 5230 Odense M (Denmark)

    2013-11-15

    Highlights: • Approach for use of scenarios dealing with both waste management and energy issues. • Overall scenarios for the common project and sub-scenarios in parts of the project. • Combining different types of scenarios to the tools of different disciplines. • Use of explorative external scenarios based on marginals for consequential LCA. - Abstract: Development and use of scenarios for large interdisciplinary projects is a complicated task. This article provides practical examples of how it has been carried out in two projects addressing waste management and energy issues respectively. Based on experiences from the two projects, recommendations are made for an approach concerning development of scenarios in projects dealing with both waste management and energy issues. Recommendations are given to develop and use overall scenarios for the project and leave room for sub-scenarios in parts of the project. Combining different types of scenarios is recommended, too, in order to adapt to the methods and tools of different disciplines, such as developing predictive scenarios with general equilibrium tools and analysing explorative scenarios with energy system analysis tools. Furthermore, as marginals identified in differing future background systems determine the outcomes of consequential life cycle assessments (LCAs), it is considered advisable to develop and use explorative external scenarios based on possible marginals as a framework for consequential LCAs. This approach is illustrated using an on-going Danish research project.

  5. System aspects of a Space Nuclear Reactor Power System

    SciTech Connect (OSTI)

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

    1988-01-01

    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.

  6. Power Optimization and Management in Embedded Systems1 Massoud Pedram

    E-Print Network [OSTI]

    Pedram, Massoud

    1 Power Optimization and Management in Embedded Systems1 Massoud Pedram University of Southern under contract number DAAB07-00-C-L516. Abstract Power-efficient design requires reducing power on the system performance and quality of service (QoS). Power-aware high-level language compilers, dynamic power

  7. A new power combining and outphasing modulation system for high-efficiency power amplification

    E-Print Network [OSTI]

    Perreault, David J.

    This paper describes a new power combining and outphasing system that provides both high efficiency and linear output control. Whereas conventional outphasing systems utilize two power amplifiers, the system introduced ...

  8. A New Power Combining and Outphasing Modulation System for High-Efficiency Power Amplification

    E-Print Network [OSTI]

    Perreault, David J.

    This paper describes a new power combining and outphasing system that provides both high efficiency and linear output control. Whereas conventional outphasing systems utilize two power amplifiers, the system introduced ...

  9. Dual power, constant speed electric motor system

    DOE Patents [OSTI]

    Kirschbaum, Herbert S. (Asheville, NC)

    1984-01-01

    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.

  10. Dual power, constant speed electric motor system

    DOE Patents [OSTI]

    Kirschbaum, H.S.

    1984-07-31

    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.

  11. Optimizing a Hybrid Energy Storage System for a Virtual Power Plant for Improved Wind Power

    E-Print Network [OSTI]

    Teodorescu, Remus

    Optimizing a Hybrid Energy Storage System for a Virtual Power Plant for Improved Wind Power approach to find two optimum energy storages (ESs) to build a hybrid system which is part of a virtual power plant. In this paper it means the combination of the hybrid energy storage system and wind power

  12. A measure of the impact of future dark energy experiments based on discriminating power among quintessence models

    E-Print Network [OSTI]

    Michael Barnard; Augusta Abrahamse; Andreas Albrecht; Brandon Bozek; Mark Yashar

    2009-05-18

    We evaluate the ability of future data sets to discriminate among different quintessence dark energy models. This approach gives an alternative measure for assessing the impact of future experiments, as compared with the large body of literature that compares experiments in abstract parameter spaces and more recent work that evaluates the constraining power of experiments on individual parameter spaces of specific quintessence models. We use the Dark Energy Task Force (DETF) models of future data sets, and compare the discriminative power of experiments designated by the DETF as Stages 2, 3, and 4. Our work reveals a minimal increase in discriminating power when comparing Stage 3 to Stage 2, but a very striking increase in discriminating power when going to Stage 4. We also see evidence that even modest improvements over DETF Stage 4 could result in even more dramatic discriminating power among quintessence dark energy models. We develop and demonstrate the technique of using the independently measured modes of the equation of state as a common parameter space in which to compare the different quintessence models, and we argue that this technique is a powerful one. We use the PNGB, Exponential, Albrecht-Skordis, and Inverse Tracker (or Inverse Power Law) quintessence models for this work. One of our main results is that the goal of discriminating among these models sets a concrete measure on the capabilities of future dark energy experiments. Experiments have to be somewhat better than DETF Stage 4 simulated experiments to fully meet this goal.

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

    SciTech Connect (OSTI)

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

    2008-09-30

    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.

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

    SciTech Connect (OSTI)

    Ma, Z.; Turchi, C. S.

    2011-03-01

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

  15. Power Consumption in Enterprise-Scale Backup Storage Systems Appears in the tenth USENIX Conference on File and Storage Technologies (FAST 2012)

    E-Print Network [OSTI]

    Zadok, Erez

    Brook University Backup Recovery Systems Division EMC Corporation Abstract Power consumption has become an important factor in modern storage system design. Power efficiency is particularly beneficial in disk their impact on future power-efficient designs. 1 Introduction Power has become an important design

  16. Coal-fired high performance power generating system. Final report

    SciTech Connect (OSTI)

    1995-08-31

    As a result of the investigations carried out during Phase 1 of the Engineering Development of Coal-Fired High-Performance Power Generation Systems (Combustion 2000), the UTRC-led Combustion 2000 Team is recommending the development of an advanced high performance power generation system (HIPPS) whose high efficiency and minimal pollutant emissions will enable the US to use its abundant coal resources to satisfy current and future demand for electric power. The high efficiency of the power plant, which is the key to minimizing the environmental impact of coal, can only be achieved using a modern gas turbine system. Minimization of emissions can be achieved by combustor design, and advanced air pollution control devices. The commercial plant design described herein is a combined cycle using either a frame-type gas turbine or an intercooled aeroderivative with clean air as the working fluid. The air is heated by a coal-fired high temperature advanced furnace (HITAF). The best performance from the cycle is achieved by using a modern aeroderivative gas turbine, such as the intercooled FT4000. A simplified schematic is shown. In the UTRC HIPPS, the conversion efficiency for the heavy frame gas turbine version will be 47.4% (HHV) compared to the approximately 35% that is achieved in conventional coal-fired plants. This cycle is based on a gas turbine operating at turbine inlet temperatures approaching 2,500 F. Using an aeroderivative type gas turbine, efficiencies of over 49% could be realized in advanced cycle configuration (Humid Air Turbine, or HAT). Performance of these power plants is given in a table.

  17. Power Systems Engineering Research Center Dennis Ray Ward Jewell

    E-Print Network [OSTI]

    Power Systems Engineering Research Center Dennis Ray Ward Jewell Executive Director, Power Systems-Learjet Fellow Madison, WI 53706-1691 Director, Power Quality Laboratory djray@engr.wisc.edu Wichita State an overview of the Power Systems Engineering Research Center (PSERC), a National Science Foundation Industry

  18. Center for Power Electronics Systems CENTER PROGRAM SNAPSHOT

    E-Print Network [OSTI]

    Ha, Dong S.

    electrical power, raise industrial pro- ductivity and improve product quality. Such advances could have for Power Electron- ics Systems (CPES) are working to make electric power processing more efficient and more electricity to the next step and develop power processing systems of the highest value to society. A SYSTEMS

  19. Whitestone Power & Communications (TRL 1 2 3 System) - Whitestone...

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

    Poncelet RISEC Project 32poncwpcselvaggio.ppt More Documents & Publications Vortex Hydro Energy (TRL 5 6 System) - Advanced Integration of Power Take-Off in VIVACE Water Power...

  20. Perturbations of Weakly Resonant Power System Electromechanical Modes

    E-Print Network [OSTI]

    1 Perturbations of Weakly Resonant Power System Electromechanical Modes Ian Dobson, Senior Member. The possible perturbations are illustrated with interactions between electromechanical modes in a 4 bus power

  1. Saft Power Systems | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/ColoradoRemsenburg-Speonk, NewMichigan:Roxbury,RushS.KSPARQLSacketsSafetyPower Systems Jump

  2. Distributed Power Electronics for PV Systems (Presentation)

    SciTech Connect (OSTI)

    Deline, C.

    2011-12-01

    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.

  3. Reliability Evaluation of Electric Power Generation Systems with Solar Power 

    E-Print Network [OSTI]

    Samadi, Saeed

    2013-11-08

    Conventional power generators are fueled by natural gas, steam, or water flow. These generators can respond to fluctuating load by varying the fuel input that is done by a valve control. Renewable power generators such as ...

  4. Contingency Analysis of Power System using Power Flow

    E-Print Network [OSTI]

    Lavaei, Javad

    and to minimize customer outages. i II. Motivation The security of a power grid into account. The other common causes of faults are weather related.0 ­ Typical Causes of Faults iii Source: Richard Brown. Electric Power Distribution

  5. Publish date: 06/27/2011 ECE 4343: Introduction to Power Systems

    E-Print Network [OSTI]

    Gelfond, Michael

    description: Electrical power transmission and distribution systems; power generation systems, system modeling. Analyze electrical power distribution systems. 2. Design electrical power distribution systems. Student outcomes addressed: a, c, e, and k. Topics covered Electric power system description ­ 2 hours Transmission

  6. Co-Simulation of Detailed Whole Building with the Power System to Study Smart Grid Applications

    SciTech Connect (OSTI)

    Makhmalbaf, Atefe; Fuller, Jason C.; Srivastava, Viraj; Ciraci, Selim; Daily, Jeffrey A.

    2014-12-24

    Modernization of the power system in a way that ensures a sustainable energy system is arguably one of the most pressing concerns of our time. Buildings are important components in the power system. First, they are the main consumers of electricity and secondly, they do not have constant energy demand. Conventionally, electricity has been difficult to store and should be consumed as it is generated. Therefore, maintaining the demand and supply is critical in the power system. However, to reduce the complexity of power models, buildings (i.e., end-use loads) are traditionally modeled and represented as aggregated “dumb” nodes in the power system. This means we lack effective detailed whole building energy models that can support requirements and emerging technologies of the smart power grid. To gain greater insight into the relationship between building energy demand and power system performance, it is important to constitute a co-simulation framework to support detailed building energy modeling and simulation within the power system to study capabilities promised by the modern power grid. This paper discusses ongoing work at Pacific Northwest National Laboratory and presents underlying tools and framework needed to enable co-simulation of building, building energy systems and their control in the power system to study applications such as demand response, grid-based HVAC control, and deployment of buildings for ancillary services. The optimal goal is to develop an integrated modeling and simulation platform that is flexible, reusable, and scalable. Results of this work will contribute to future building and power system studies, especially those related to the integrated ‘smart grid’. Results are also expected to advance power resiliency and local (micro) scale grid studies where several building and renewable energy systems transact energy directly. This paper also reviews some applications that can be supported and studied using the framework introduced to understand their implications before they can be successfully implemented in the power system.

  7. System Study: Emergency Power System 1998–2012

    SciTech Connect (OSTI)

    T. E. Wierman

    2013-10-01

    This report presents an unreliability evaluation of the emergency power system (EPS) at 104 U.S. commercial nuclear power plants. Demand, run hours, and failure data from fiscal year 1998 through 2012 for selected components were obtained from the Equipment Performance and Information Exchange (EPIX). The unreliability results are trended for the most recent 10 year period while yearly estimates for system unreliability are provided for the entire active period. A statistically significant increasing trend was identified for unreliability (8 hour model) as a function of fiscal year. No statistically significant decreasing trend was identified in the EPS results.

  8. Catalog of DC Appliances and Power Systems

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01

    similarly to an uninterruptible power supply. Lifetime:utility coupled with uninterruptible power requirements forloads serviced by DC uninterruptible power supplies in data

  9. Control and Protection Paradigms of the Future

    E-Print Network [OSTI]

    Control and Protection Paradigms of the Future Future Grid Thrust Area 2 White Paper Power Systems Engineering Research Center Empowering Minds to Engineer the Future Electric Energy System #12;Thrust Area 2 White Paper Control and Protection Paradigms of the Future Project Team C.L. DeMarco, C.A. Baone, B

  10. System-of-Systems Framework for the Future Hydrogen-Based Transportation Economy: Preprint

    SciTech Connect (OSTI)

    Duffy, M.; Sandor, D.

    2008-06-01

    From a supply chain view, this paper traces the flow of transportation fuels through required systems and addresses the current petroleum-based economy, DOE's vision for a future hydrogen-based transportation economy, and the challenges of a massive market and infrastructure transformation.

  11. RETHINKING THE FUTURE GRID: INTEGRATED NUCLEAR-RENEWABLE ENERGY SYSTEMS

    SciTech Connect (OSTI)

    S.M. Bragg-Sitton; R. Boardman

    2014-12-01

    The 2013 electricity generation mix in the United States consisted of ~13% renewables (hydropower, wind, solar, geothermal), 19% nuclear, 27% natural gas, and 39% coal. In the 2011 State of the Union Address, President Obama set a clean energy goal for the nation: “By 2035, 80 percent of America’s electricity will come from clean energy sources. Some folks want wind and solar. Others want nuclear, clean coal and natural gas. To meet this goal we will need them all.” The U.S. Department of Energy (DOE) Offices of Nuclear Energy (NE) and Energy Efficiency and Renewable Energy (EERE) recognize that “all of the above” means that we are called to best utilize all available clean energy sources. To meet the stated environmental goals for electricity generation and for the broader energy sector, there is a need to transform the energy infrastructure of the U.S. and elsewhere. New energy systems must be capable of significantly reducing environmental impacts in an efficient and economically viable manner while utilizing both hydrocarbon resources and clean energy generation sources. The U.S. DOE is supporting research and development that could lead to more efficient utilization of clean energy generation sources, including renewable and nuclear options, to meet both grid demand and thermal energy needs in the industrial sector. A concept being advanced by the DOE-NE and DOE-EERE is tighter coupling of nuclear and renewable energy sources in a manner that better optimizes energy use for the combined electricity, industrial manufacturing, and the transportation sectors. This integration concept has been referred to as a “hybrid system” that is capable of apportioning thermal and electrical energy to first meet the grid demand (with appropriate power conversion systems), then utilizing excess thermal and, in some cases, electrical energy to drive a process that results in an additional product. For the purposes of the present work, the hybrid system would integrate two or more energy resources to generate two or more products, one of which must be an energy commodity, such as electricity or transportation fuel. Subsystems would be integrated ‘‘behind’’ the electrical transmission bus and would be comprised of two or more energy conversion subsystems that have traditionally been separate or isolated. Energy flows would be dynamically apportioned as necessary to meet grid demand via a single, highly responsive connection to the grid that provides dispatchable electricity while capital-intensive generation assets operate at full capacity. Candidate region-specific hybrid energy systems selected for further study and figures of merit that will be used to assess system performance will be presented.

  12. Chaos anti-synchronization in multiple time delay power systems

    E-Print Network [OSTI]

    Elman Shahverdiev

    2015-09-20

    We elucidate conditions for chaos anti-synchronization between two uni-directionally coupled multiple time delay power systems. The results are of some importance to prevent power black-out in the entire power grid.

  13. Power System Analysis Department of Electrical and Computer Engineering

    E-Print Network [OSTI]

    Saskatchewan, University of

    EE 860.3 Power System Analysis Department of Electrical and Computer Engineering Fall 2013-14 Description: This course covers in depth main topics: 1-Analysis of faulted power systems which includes bus, classification of system buses, Gauss-Seidel and Newton-Raphson methods, 3- Power system stability; modeling

  14. Analysis and design of power conditioning systems 

    E-Print Network [OSTI]

    Harfman Todorovic, Maja

    2009-05-15

    -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...

  15. DISTRIBUTED ENERGY SYSTEMS IN CALIFORNIA'S FUTURE: A PRELIMINARY REPORT, VOLUME I

    E-Print Network [OSTI]

    Authors, Various

    2010-01-01

    DOCU[viENTS SECTION DISTRIBUTED ENERGY SYSTEMS STUDY GROUPIMPLICATIONS OF UTILIZING DISTRIBUTED ENERGY TECHNOLOGIES .to implement a distributed energy future. RECENT TRENDS IN

  16. Fuel processor for fuel cell power system

    DOE Patents [OSTI]

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

    1987-01-01

    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.

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

    SciTech Connect (OSTI)

    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)

    1993-01-01

    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.

  18. Stochastic Power Control for Cellular Radio Systems \\Lambda

    E-Print Network [OSTI]

    Yates, Roy

    Stochastic Power Control for Cellular Radio Systems \\Lambda Sennur Ulukus Roy D. Yates July 11 In cellular wireless communication systems, the aim of power control is to assign each user a transmitter power level such that all users satisfy their quality of service (QoS) requirements. The power control

  19. An advanced power distribution automation model system

    SciTech Connect (OSTI)

    Niwa, Shigeharu; Kanoi, Minoru; Nishijima, Kazuo; Hayami, Mitsuo

    1995-12-31

    An advanced power distribution automation (APDA) model system has been developed on the present basis of the automated distribution systems in Japan, which have been used for remote switching operations and for urgent supply restorations during faults. The increased use of electronic apparatuses sensitive to supply interruption requires very high supply reliability, and the final developed system is expected to be useful for this purpose. The developed model system adopts pole circuit breakers and remote termination units connected through 64kbps optical fibers to the computer of the automated system in the control center. Immediate switching operations for supply restorations during faults are possible through the restoration procedures, prepared beforehand, by the computer and by fast telecommunications using optical fibers. So, protection by the feeder circuit breaker in the substation can be avoided, which would otherwise cause the blackout of the whole distribution line. The test results show the effectiveness of model the system: successful fault locations and reconfiguration for supply restoration including separation of the fault sections (without blackout for the ground faults and with a short period (within 1 s) of blackout for the short-circuit faults).

  20. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Mai, T.

    2012-08-01

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented in a Power Systems Engineering Research Center webinar on September 4, 2012.

  1. Utilizing the Traction Drive Power Electronics System to Provide...

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

    Traction Drive Power Electronics System to Provide Plug-in Capability for PHEVs Utilizing the Traction Drive Power Electronics System to Provide Plug-in Capability for PHEVs 2009...

  2. Analyses of power system vulnerability and total transfer capability 

    E-Print Network [OSTI]

    Yu, Xingbin

    2006-04-12

    companies and the ISOs. An uninterrupted and high quality power is required for the sustainable development of a technological society. Power system blackouts generally result from cascading outages. Protection system hidden failures remain dormant when...

  3. Working Group Report on - Space Nuclear Power Systems and Nuclear...

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

    Working Group Report on - Space Nuclear Power Systems and Nuclear Waste Technology R&D Working Group Report on - Space Nuclear Power Systems and Nuclear Waste Technology R&D "Even...

  4. Hydrogen storage of energy for small power supply systems

    E-Print Network [OSTI]

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

    2005-01-01

    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 ...

  5. An Energy-Based Approach to Power System Analysis

    E-Print Network [OSTI]

    Caliskan, Sina Yamac

    2015-01-01

    equation, Electrical Power & Energy Systems, Vol. 3, No. 3,4] P. D. Aylett, T he energy-integral criterion of transientloads, Electrical Power and Energy Systems, Vol. 8, Issue 1,

  6. Microsoft PowerPoint - Franklin System IO

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on darkMicroorganisms toPalladium/28/2008 BPA FinancialFile Systems

  7. Wind to Power Systems | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgencyTendo New EnergyWindState GridWindLtd JumpPower Systems

  8. Tri Power Systems Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (Utility Company) Jump to: navigation,Power Systems Inc Jump to:

  9. Cheng Power Systems | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButte County,Camilla,Thermal GradientChateau Tebeau LLC JumpSystemChenaPowerCheng

  10. Status Report on Power System Transformation: A 21st Century Power Partnership Report

    SciTech Connect (OSTI)

    Miller, Mackay; Martinot, Eric; Cox, Sadie; Speer, Bethany; Zinaman, Owen; Booth, Sam; Zissler, Romain; Cochran, Jaquelin; Soonee, S. K.; Audinet, Pierre; Munuera, Luis; Arent, Doug

    2015-05-27

    This report has three primary goals: (1) to articulate the concept of power system transformation; (2) to explore the current global landscape of ‘innovations’ that constitute power system transformation and provide evidence of how these innovations are emerging; and (3) to suggest an analytical framework for assessing the status of power system transformation on an on-going basis.

  11. Electromagnetic pulse (EMP) interaction with electric power systems. Power Systems Technology Program. Final report

    SciTech Connect (OSTI)

    Zaininger, H.W.

    1984-08-01

    A high altitude nuclear burst, detonated at a height of 50 km or more, causes two types of electromagnetic pulses (EMP) - high altitude EMP (HEMP) and magnetohydrodynamic EMP (MHD-EMP). This high altitude EMP scenario is of principal concern when assessing the effects of EMP on electric power systems, because the total United States can be simultaneously illuminated by HEMP and MHD-EMP can cover a large area of up to several hundred kilometers in diameter. The purpose of this project was first to define typical electrical power system characteristics for EMP analysis, and second, to determine reasonable worst case EMP induced surges on overhead electric power system transmission and distribution lines for reasonable assumptions, using unclassified HEMP and MHD-EMP electric field waveforms.

  12. Transportation Energy Futures Series. Projected Biomass Utilization for Fuels and Power in a Mature Market

    SciTech Connect (OSTI)

    Ruth, M.; Mai, T.; Newes, E.; Aden, A.; Warner, E.; Uriarte, C.; Inman, D.; Simpkins, T.; Argo, A.

    2013-03-01

    The viability of biomass as transportation fuel depends upon the allocation of limited resources for fuel, power, and products. By focusing on mature markets, this report identifies how biomass is projected to be most economically used in the long term and the implications for greenhouse gas (GHG) emissions and petroleum use. In order to better understand competition for biomass between these markets and the potential for biofuel as a market-scale alternative to petroleum-based fuels, this report presents results of a micro-economic analysis conducted using the Biomass Allocation and Supply Equilibrium (BASE) modeling tool. The findings indicate that biofuels can outcompete biopower for feedstocks in mature markets if research and development targets are met. The BASE tool was developed for this project to analyze the impact of multiple biomass demand areas on mature energy markets. The model includes domestic supply curves for lignocellulosic biomass resources, corn for ethanol and butanol production, soybeans for biodiesel, and algae for diesel. This is one of a series of reports produced as a result of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency project initiated to pinpoint underexplored strategies for abating GHGs and reducing petroleum dependence related to transportation.

  13. ITP Industrial Distributed Energy: Combined Heat and Power: Effective Energy Solutions for a Sustainable Future

    Office of Energy Efficiency and Renewable Energy (EERE)

    Report describing the four key areas where CHP has proven its effectiveness and holds promise for the future

  14. Flexibility in 21st Century Power Systems (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-10-01

    Flexibility of operation--the ability of a power system to respond to change in demand and supply--is a characteristic of all power systems. Flexibility is especially prized in twenty-first century power systems, with higher levels of grid-connected variable renewable energy (primarily, wind and solar). Sources of flexibility exist--and can be enhanced--across all of the physical and institutional elements of the power system, including system operations and markets, demand side resources and storage; generation; and transmission networks. Accessing flexibility requires significant planning to optimize investments and ensure that both short- and long-time power system requirements are met.

  15. Full-System Power Analysis and Modeling for Server Environments

    E-Print Network [OSTI]

    Kozyrakis, Christos

    Full-System Power Analysis and Modeling for Server Environments Dimitris Economou, Suzanne Rivoire consumption trends and developing simple yet accurate models to predict full-system power. We study to generate a model by correlating AC power measurements with user-level system utilization metrics. We

  16. COMMUNICATION VULNERABILITIES AND MITIGATIONS IN WIND POWER SCADA SYSTEMS

    E-Print Network [OSTI]

    1 COMMUNICATION VULNERABILITIES AND MITIGATIONS IN WIND POWER SCADA SYSTEMS American Wind Energy/ Abstract This paper focuses on securing wind power Supervisory Control And Data Acquisition (SCADA) systems security vulnerabilities. To address these new vulnerabilities in wind power SCADA systems, we apply

  17. Onsite Wastewater Treatment Systems: Responding to Electrical Power Outages

    E-Print Network [OSTI]

    1 Onsite Wastewater Treatment Systems: Responding to Electrical Power Outages and Floods Bruce The Texas A&M University System Electrical power outages and floods can affect you and your residential power outages and flooding. System Components To properly respond to a disaster, homeowners need to know

  18. COURSE OUTLINE EE 4PM4 Electrical Power Systems

    E-Print Network [OSTI]

    Haykin, Simon

    COURSE OUTLINE EE 4PM4 Electrical Power Systems Academic Year 2014-15; Term 2; Jan. to May 2015 systems. To gain an appreciation of electrical power system protection techniques. Define and qualify issues relating to electrical power quality and the impact thereof on plant and customer loads. To study

  19. Energy Storage System Sizing for Smoothing Power Generation , P. Bydlowski

    E-Print Network [OSTI]

    Boyer, Edmond

    Energy Storage System Sizing for Smoothing Power Generation of Direct J. Aubry1 , P. Bydlowski 1 E-mail: judicael.aubry Abstract This paper examines the sizing energy storage system (ESS) for energy converter. Keywords: Energy Storage System (ESS), power smoothing, Direct Wave Energy Converter, Supercapacitor, Power

  20. Power System Flexibility Summary of Council Staff Activities

    E-Print Network [OSTI]

    of wind power to the Northwest electricity system has raised issues regarding power system flexibility and balancing its variability with flexible hydro resources. They walked through an example day where windPower System Flexibility Summary of Council Staff Activities The addition of large amounts

  1. Simulation of a Wireless Power Transfer System for Electric Vehicles with Power Factor Correction

    SciTech Connect (OSTI)

    Pickelsimer, Michael C [ORNL; Tolbert, Leon M [ORNL; Ozpineci, Burak [ORNL; Miller, John M [ORNL

    2012-01-01

    Wireless power transfer has been a popular topic of recent research. Most research has been done to address the limitations of coil-to-coil efficiency. However, little has been done to address the problem associated with the low input power factor with which the systems operate. This paper details the steps taken to analyze a wireless power transfer system from the view of the power grid under a variety of loading conditions with and without power factor correction.

  2. Diesel Futures Forget the black soot and smoke. Modern diesel-powered cars are quiet, clean and fast.

    E-Print Network [OSTI]

    passenger-car importer, Volkswagen, with new models of their own. As of now, only the VW Jetta/Golf/Beetle 1Diesel Futures Forget the black soot and smoke. Modern diesel-powered cars are quiet, clean, and be within a gnat's whisker of a gasoline hybrid like the Prius. The studies of total energy consumption

  3. Fuel Cell Power Model for CHHP System Economics and Performance...

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

    Model for CHHP System Economics and Performance Analysis Fuel Cell Power Model for CHHP System Economics and Performance Analysis Presented at the Renewable Hydrogen Workshop, Nov....

  4. Advanced Diesel Common Rail Injection System for Future Emission Legislation

    Broader source: Energy.gov [DOE]

    2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Robert Bosch GMBH Common Rail System Engineering for PC Diesel Systems

  5. Catalog of DC Appliances and Power Systems

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01

    DC/AC-Hybrid) LED AC LED Power (W) Figure 8. Efficacywith the same power consumption. For LEDs, the improvementLED light-emitting diode viii lumen a measure of the power

  6. Catalog of DC Appliances and Power Systems

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01

    5V DC USB power from wall sockets. .. 52 viprovides 5V DC USB power from wall sockets. Reproduced withPower over Ethernet 51 Universal Serial Bus Wall

  7. Impact of Wireless Power Transfer in Transportation: Future Transportation Enabler, or Near Term Distraction

    SciTech Connect (OSTI)

    Onar, Omer C; Jones, Perry T

    2014-01-01

    While the total liquid fuels consumed in the U.S. for transportation of goods and people is expected to hold steady, or decline slightly over the next few decades, the world wide consumption is projected to increase of over 30% according to the Annual Energy Outlook 2014 [1]. The balance of energy consumption for transportation between petroleum fuels and electric energy, and the related greenhouse gas (GHG) emissions produced consuming either, is of particular interest to government administrations, vehicle OEMs, and energy suppliers. The market adoption of plug-in electric vehicles (PEVs) appears to be inhibited by many factors relating to the energy storage system (ESS) and charging infrastructure. Wireless power transfer (WPT) technologies have been identified as a key enabling technology to increase the acceptance of EVs. Oak Ridge National Laboratory (ORNL) has been involved in many research areas related to understanding the impacts, opportunities, challenges and costs related to various deployments of WPT technology for transportation use. Though the initial outlook for WPT deployment looks promising, many other emerging technologies have met unfavorable market launches due to unforeseen technology limitations, sometimes due to the complex system in which the new technology was placed. This paper will summarize research and development (R&D) performed at ORNL in the area of Wireless Power Transfer (WPT). ORNL s advanced transportation technology R&D activities provide a unique set of experienced researchers to assist in the creation of a transportation system level view. These activities range from fundamental technology development at the component level to subsystem controls and interactions to applicable system level analysis of impending market and industry responses and beyond.

  8. Distributed Energy Systems in California's Future: A Preliminary Report Volume 2

    E-Print Network [OSTI]

    Balderston, F.

    2010-01-01

    OF UTILIZING DISTRIBUTED ENERGY TECHNOLOGIES . . . . . . .DISTRIBUTED ENERGY SYSTEMS I~N CALIF RNIA/S FUTURE: UU-6831Ur'l1E:i\\i-fS SECTION DISTRIBUTED ENERGY SYSTEMS STUDY GROUP

  9. Catalog of DC Appliances and Power Systems

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01

    45]. Home Power magazine’s 2010 Wind Generator Buyer’s guide2010 Wind Generator buyer's guide. Home Power Magazine,

  10. Electric Energy Challenges of the Future Future Grid Thrust Area 1 White Paper

    E-Print Network [OSTI]

    Electric Energy Challenges of the Future Future Grid Thrust Area 1 White Paper Power Systems Engineering Research Center Empowering Minds to Engineer the Future Electric Energy System #12;Thrust Area 1 White Paper Electric Energy Challenges of the Future Project Team Gerald T. Heydt, Kory Hedman Arizona

  11. Low Power Dynamic Scheduling for Computing Systems

    E-Print Network [OSTI]

    Neely, Michael J

    2011-01-01

    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...

  12. Direct current uninterruptible power supply method and system

    DOE Patents [OSTI]

    Sinha, Gautam

    2003-12-02

    A method and system are described for providing a direct current (DC) uninterruptible power supply with the method including, for example: continuously supplying fuel to a turbine; converting mechanical power from the turbine into alternating current (AC) electrical power; converting the AC electrical power to DC power within a predetermined voltage level range; supplying the DC power to a load; and maintaining a DC load voltage within the predetermined voltage level range by adjusting the amount of fuel supplied to the turbine.

  13. Wind Power Development in the United States: Current Progress, Future Trends

    E-Print Network [OSTI]

    Wiser, Ryan H

    2009-01-01

    Annual Report on U.S. Wind Power Installation, Cost, andWind Power Development in the United States: Current94720 Abstract: The U.S. wind power industry is in an era of

  14. Essential Power Systems Workshop - OEM Perspective

    SciTech Connect (OSTI)

    Bill Gouse

    2001-12-12

    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.

  15. BULK POWER SYSTEM DYNAMICS AND CONTROL V, AUGUST 26-31, 2001, ONOMICHI, JAPAN Global Hybrid Control of Power Systems

    E-Print Network [OSTI]

    Guo, Yi

    BULK POWER SYSTEM DYNAMICS AND CONTROL V, AUGUST 26-31, 2001, ONOMICHI, JAPAN Global Hybrid Control| This paper presents an overview of recent results on an ap- proach to total control of power systems con- trol for voltage security of power systems, and same ideas for general control [1{6]. In arriving

  16. High Performance Interconnect System Design for Future Chip Multiprocessors 

    E-Print Network [OSTI]

    Wang, Lei

    2013-05-02

    constraints of power and area, and provide ultra low latencies and high throughput. In this research, we explore different techniques to design high performance NOC. First, existing NOCs mostly use Dimension Order Routing (DOR) to determine the route taken...

  17. Building a New Energy Future with Wind Power (Revised) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-01-01

    This fact sheet provides an overview of the U.S. Department of Energy's Wind and Water Power Program's wind power research activities.

  18. Water Power for a Clean Energy Future (Fact Sheet), Wind and...

    Broader source: Energy.gov (indexed) [DOE]

    fact sheet provides an overview of the Department of Energy's Wind and Water Power Program's water power research activities. 51315.pdf More Documents & Publications Marine &...

  19. Control system and method for a universal power conditioning system

    DOE Patents [OSTI]

    Lai, Jih-Sheng; Park, Sung Yeul; Chen, Chien-Liang

    2014-09-02

    A new current loop control system method is proposed for a single-phase grid-tie power conditioning system that can be used under a standalone or a grid-tie mode. This type of inverter utilizes an inductor-capacitor-inductor (LCL) filter as the interface in between inverter and the utility grid. The first set of inductor-capacitor (LC) can be used in the standalone mode, and the complete LCL can be used for the grid-tie mode. A new admittance compensation technique is proposed for the controller design to avoid low stability margin while maintaining sufficient gain at the fundamental frequency. The proposed current loop controller system and admittance compensation technique have been simulated and tested. Simulation results indicate that without the admittance path compensation, the current loop controller output duty cycle is largely offset by an undesired admittance path. At the initial simulation cycle, the power flow may be erratically fed back to the inverter causing catastrophic failure. With admittance path compensation, the output power shows a steady-state offset that matches the design value. Experimental results show that the inverter is capable of both a standalone and a grid-tie connection mode using the LCL filter configuration.

  20. Phasor Measurement Unit and Its Application in Modern Power Systems

    SciTech Connect (OSTI)

    Ma, Jian; Makarov, Yuri V.; Dong, Zhao Yang

    2010-06-01

    The introduction of phasor measuring units (PMUs) in power systems significantly improves the possibilities for monitoring and analyzing power system dynamics. Synchronized measurements make it possible to directly measure phase angles between corresponding phasors in different locations within the power system. Improved monitoring and remedial action capabilities allow network operators to utilize the existing power system in a more efficient way. Improved information allows fast and reliable emergency actions, which reduces the need for relatively high transmission margins required by potential power system disturbances. In this chapter, the applications of PMU in modern power systems are presented. Specifically, the topics touched in this chapter include state estimation, voltage and transient stability, oscillation monitoring, event and fault detection, situation awareness, and model validation. A case study using Characteristic Ellipsoid method based on PMU to monitor power system dynamic is presented.

  1. PLATO Power--a robust, low environmental impact power generation system for the Antarctic plateau

    E-Print Network [OSTI]

    Ashley, Michael C. B.

    PLATO Power--a robust, low environmental impact power generation system for the Antarctic plateau the power generation and management system of PLATO. Two redundant arrays of solar panels and a multiply astronomical facilities on the Antarctic plateau, offering minimum environmental impact and requiring minimal

  2. IEEE TRANSACTIONS ON POWER SYSTEMS 1 MILP Formulation for Islanding of Power Networks

    E-Print Network [OSTI]

    Grothey, Andreas

    IEEE TRANSACTIONS ON POWER SYSTEMS 1 MILP Formulation for Islanding of Power Networks P. A. Trodden prevented by intentionally splitting the system into islands [10]. By isolating the faulty part formulation for the islanding of power networks is presented. Given an area of uncertainty in the network

  3. The Future of Energy at the ARPA-E Summit | GE Global Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    future blogs by email. Subscribe to all future posts Who Todd Wetzel What Energy Aero-Thermal & Mechanical Systems Employee Events Thermal Sciences Why Powering Subscribe...

  4. Power and Energy Management for Server Systems Ricardo Bianchini

    E-Print Network [OSTI]

    Bianchini, Ricardo

    into large and expensive uninterruptible power supplies and backup power generators, both of whichPower and Energy Management for Server Systems Ricardo Bianchini and Ram Rajamony Department of Computer Science Low-Power Computing Research Center Rutgers University IBM Austin Research Lab Piscataway

  5. Dynamics, Optimization and Control of a Fuel Cell Based Combined Heat Power (CHP) System for Shipboard Applications

    E-Print Network [OSTI]

    Stefanopoulou, Anna

    Dynamics, Optimization and Control of a Fuel Cell Based Combined Heat Power (CHP) System, a natural gas fuel processor system (FPS), a proton exchange membrane fuel cell (PEM-FC) and a catalytic) systems based on fuel cells and fuel processing technologies have great potential for future shipboard

  6. Long-Term Instrumentation, Information, and Control Systems (II&C) Modernization Future Vision and Strategy

    SciTech Connect (OSTI)

    Kenneth Thomas

    2012-02-01

    Life extension beyond 60 years for the U.S operating nuclear fleet requires that instrumentation and control (I&C) systems be upgraded to address aging and reliability concerns. It is impractical for the legacy systems based on 1970's vintage technology operate over this extended time period. Indeed, utilities have successfully engaged in such replacements when dictated by these operational concerns. However, the replacements have been approached in a like-for-like manner, meaning that they do not take advantage of the inherent capabilities of digital technology to improve business functions. And so, the improvement in I&C system performance has not translated to bottom-line performance improvement for the fleet. Therefore, wide-scale modernization of the legacy I&C systems could prove to be cost-prohibitive unless the technology is implemented in a manner to enable significant business innovation as a means of off-setting the cost of upgrades. A Future Vision of a transformed nuclear plant operating model based on an integrated digital environment has been developed as part of the Advanced Instrumentation, Information, and Control (II&C) research pathway, under the Light Water Reactor (LWR) Sustainability Program. This is a research and development program sponsored by the U.S. Department of Energy (DOE), performed in close collaboration with the nuclear utility industry, to provide the technical foundations for licensing and managing the long-term, safe and economical operation of current nuclear power plants. DOE's program focus is on longer-term and higher-risk/reward research that contributes to the national policy objectives of energy security and environmental security . The Advanced II&C research pathway is being conducted by the Idaho National Laboratory (INL). The Future Vision is based on a digital architecture that encompasses all aspects of plant operations and support, integrating plant systems, plant work processes, and plant workers in a seamless digital environment to enhance nuclear safety, increase productivity, and improve overall plant performance. The long-term goal is to transform the operating model of the nuclear power plants (NPP)s from one that is highly reliant on a large staff performing mostly manual activities to an operating model based on highly integrated technology with a smaller staff. This digital transformation is critical to addressing an array of issues facing the plants, including aging of legacy analog systems, potential shortage of technical workers, ever-increasing expectations for nuclear safety improvement, and relentless pressure to reduce cost. The Future Vision is based on research is being conducted in the following major areas of plant function: (1) Highly integrated control rooms; (2) Highly automated plant; (3) Integrated operations; (4) Human performance improvement for field workers; and (5) Outage safety and efficiency. Pilot projects will be conducted in each of these areas as the means for industry to collectively integrate these new technologies into nuclear plant work activities. The pilot projects introduce new digital technologies into the nuclear plant operating environment at host operating plants to demonstrate and validate them for production usage. In turn, the pilot project technologies serve as the stepping stones to the eventual seamless digital environment as described in the Future Vision.

  7. Long-Term Instrumentation, Information, and Control Systems (II&C) Modernization Future Vision and Strategy

    SciTech Connect (OSTI)

    Kenneth Thomas; Bruce Hallbert

    2013-02-01

    Life extension beyond 60 years for the U.S operating nuclear fleet requires that instrumentation and control (I&C) systems be upgraded to address aging and reliability concerns. It is impractical for the legacy systems based on 1970’s vintage technology operate over this extended time period. Indeed, utilities have successfully engaged in such replacements when dictated by these operational concerns. However, the replacements have been approached in a like-for-like manner, meaning that they do not take advantage of the inherent capabilities of digital technology to improve business functions. And so, the improvement in I&C system performance has not translated to bottom-line performance improvement for the fleet. Therefore, wide-scale modernization of the legacy I&C systems could prove to be cost-prohibitive unless the technology is implemented in a manner to enable significant business innovation as a means of off-setting the cost of upgrades. A Future Vision of a transformed nuclear plant operating model based on an integrated digital environment has been developed as part of the Advanced Instrumentation, Information, and Control (II&C) research pathway, under the Light Water Reactor (LWR) Sustainability Program. This is a research and development program sponsored by the U.S. Department of Energy (DOE), performed in close collaboration with the nuclear utility industry, to provide the technical foundations for licensing and managing the long-term, safe and economical operation of current nuclear power plants. DOE’s program focus is on longer-term and higher-risk/reward research that contributes to the national policy objectives of energy security and environmental security . The Advanced II&C research pathway is being conducted by the Idaho National Laboratory (INL). The Future Vision is based on a digital architecture that encompasses all aspects of plant operations and support, integrating plant systems, plant work processes, and plant workers in a seamless digital environment to enhance nuclear safety, increase productivity, and improve overall plant performance. The long-term goal is to transform the operating model of the nuclear power plants (NPP)s from one that is highly reliant on a large staff performing mostly manual activities to an operating model based on highly integrated technology with a smaller staff. This digital transformation is critical to addressing an array of issues facing the plants, including aging of legacy analog systems, potential shortage of technical workers, ever-increasing expectations for nuclear safety improvement, and relentless pressure to reduce cost. The Future Vision is based on research is being conducted in the following major areas of plant function: 1. Highly integrated control rooms 2. Highly automated plant 3. Integrated operations 4. Human performance improvement for field workers 5. Outage safety and efficiency. Pilot projects will be conducted in each of these areas as the means for industry to collectively integrate these new technologies into nuclear plant work activities. The pilot projects introduce new digital technologies into the nuclear plant operating environment at host operating plants to demonstrate and validate them for production usage. In turn, the pilot project technologies serve as the stepping stones to the eventual seamless digital environment as described in the Future Vision.

  8. Electric Power System Anomaly Detection Using Neural Networks

    E-Print Network [OSTI]

    Tronci, Enrico

    to hijacking of measures, changes in the power network topology (i.e. transmission lines breaking) and unexElectric Power System Anomaly Detection Using Neural Networks Marco Martinelli1 , Enrico Tronci1. The aim of this work is to propose an approach to monitor and protect Electric Power System by learning

  9. Analysis of Power System Dynamics Subject to Stochastic Power Injections

    E-Print Network [OSTI]

    DeVille, Lee

    of the system dynamic states, e.g., synchronous machines angles and speeds, and algebraic states, e.g., bus

  10. Static reactive power compensators for high-voltage power systems. Final report

    SciTech Connect (OSTI)

    Not Available

    1981-04-01

    A study conducted to summarize the role of static reactive power compensators for high voltage power system applications is described. This information should be useful to the utility system planning engineer in applying static var systems (SVS) to high voltage as (HVAC) systems. The static var system is defined as a form of reactive power compensator. The general need for reactive power compensation in HVAC systems is discussed, and the static var system is compared to other devices utilized to provide reactive power compensation. Examples are presented of applying SVS for specific functions, such as the prevention of voltage collapse. The operating principles of commercially available SVS's are discussed in detail. The perormance and active power loss characteristics of SVS types are compared.

  11. Electrical power systems (Guatemala). Small generators and turbines, March 1992. Export trade information

    SciTech Connect (OSTI)

    Not Available

    1992-03-01

    In Guatemala the market for all types of electrical power generator systems, including parts and accessories, increased from US $19.5 million in 1990 to US $25.5 in 1991 (up 30.7 percent). Guatemalan import statistics list within this category all types of turbines and hydraulic electric power generating engines, regardless of their size or power generating capacity. Also included in the study are all types of electrical generators that are moved or operated by an attached fuel powered engine. The outlook for future market demand for electrical power generating systems looks promising for the next three or four years, with an estimated average increase of 7.3 percent per year.

  12. Energy Mobility Network : system design, interfaces, and future interactions

    E-Print Network [OSTI]

    Cheung, Natalie Wen Yua

    2011-01-01

    The Energy Mobility Network is a mobile, networked energy production, consumption and sharing system that is designed to motivate users to be more aware of their energy consumption. In particular, the system provides a ...

  13. u Computer Systems Research: Past and Future u Butler Lampson

    E-Print Network [OSTI]

    Arpaci-Dusseau, Remzi

    , was not made by computer systems researchers. In the light of all this experience, I will talk about the topics) Flaky for Ole/COM #12;888 The Failure of Systems Research u We didn't invent the Web u Why not? Too lighting, occlusion, noise, etc. ­ Recognizing speech and objects ­ In real time u Self-organizing systems

  14. Pool power control in remelting systems

    DOE Patents [OSTI]

    Williamson, Rodney L. (Albuquerque, NM); Melgaard, David K. (Albuquerque, NM); Beaman, Joseph J. (Austin, TX)

    2011-12-13

    An apparatus for and method of controlling a remelting furnace comprising adjusting current supplied to an electrode based upon a predetermined pool power reference value and adjusting the electrode drive speed based upon the predetermined pool power reference value.

  15. Conic optimization of electric power systems

    E-Print Network [OSTI]

    Taylor, Joshua Adam

    2011-01-01

    The electric power grid is recognized as an essential modern infrastructure that poses numerous canonical design and operational problems. Perhaps most critically, the inherently large scale of the power grid and similar ...

  16. The National Carbon Capture Center at the Power Systems Development

    Office of Scientific and Technical Information (OSTI)

    None 01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; 54 ENVIRONMENTAL SCIENCES The Power Systems Development Facility (PSDF) is a state-of-the-art test center sponsored...

  17. Reliability Modeling and Evaluation in Aging Power Systems 

    E-Print Network [OSTI]

    Kim, Hag-Kwen

    2010-01-14

    Carlo simulation is introduced. Power Law Process is modeled as the failure rate function of aging components. Power system reliability analysis can be made at the generation capacity level where transmission constraints may be included. The simulation...

  18. Modeling the Effect of Hurricanes on Power Distribution Systems 

    E-Print Network [OSTI]

    Chanda, Suraj

    2012-10-19

    outages and excessive delays in the reconstruction efforts. Accordingly, predicting the effects of power outages on the performance of power distribution systems is of major importance to government agencies, utilities, and customers. Unfortunately...

  19. Power Control and Optimization of Photovoltaic and Wind Energy Conversion Systems /

    E-Print Network [OSTI]

    Ghaffari, Azad

    2013-01-01

    Power Point Tracking in Photovoltaic Systems . . . 4.1DC- DC converter photovoltaic systems: power optimizationgrid-connected photovoltaic systems,” IET Electric Power

  20. Catalog of DC Appliances and Power Systems

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01

    design, (b) urban microturbines designed by AeroVironment [45]. Home Power magazine’s 2010 Wind Generator

  1. On the Future of Computer Algebra Systems at the Threshold of 2010

    E-Print Network [OSTI]

    Watt, Stephen M.

    On the Future of Computer Algebra Systems at the Threshold of 2010 Stephen M. Watt University in which software systems for computer algebra could be improved if designed from scratch today rather than that would be difficult to address by incremental evolution of existing systems. Computer algebra systems

  2. Present performance & future directions in two-photon addressed volumetric optical disk storage systems

    E-Print Network [OSTI]

    Esener, Sadik C.

    Present performance & future directions in two-photon addressed volumetric optical disk storage data storage is presented and future directions discussed. Influence of numerical aperture in a 3-D multi-layer optical data storage system is analyzed. Keywords: volumetric data storage, multi-layer data

  3. Development of Materials for Future Energy Systems using Combinatorial Synthesis of Thin Film Materials

    E-Print Network [OSTI]

    production/storage/conversion of energy carriers are necessary to improve existing and enable future energyDevelopment of Materials for Future Energy Systems using Combinatorial Synthesis of Thin Film Professor Alfred Ludwig Institute for Materials, Ruhr-Universität Bochum, Bochum, Germany THE RESNICK

  4. High-Temperature SiC Power Module with Integrated SiC Gate Drivers for Future High-Density Power Electronics Applications

    SciTech Connect (OSTI)

    Whitaker, Mr. Bret [APEI, Inc.; Cole, Mr. Zach [APEI, Inc.; Passmore, Mr. Brandon [APEI, Inc.; Mcnutt, Tyler [APEI, Inc.; Lostetter, Dr. Alex [APEI, Inc.; Ericson, Milton Nance [ORNL; Frank, Steven [ORNL; Britton Jr, Charles L [ORNL; Marlino, Laura D [ORNL; Mantooth, Alan [University of Arkansas; Francis, Matt [APEI, Inc.; Lamichhane, Ranjan [APEI, Inc.; Shepherd, Paul [APEI, Inc.; Glover, Michael [APEI, Inc.

    2014-01-01

    This paper presents a high-temperature capable intelligent power module that contains SiC power devices and SiC gate driver integrated circuits (ICs). The high-temperature capability of the SiC gate driver ICs allows for them to be packaged into the power module and be located physically close to the power devices. This provides a distinct advantage by reducing the gate driver loop inductance, which promotes high frequency operation, while also reducing the overall volume of the system through higher levels of integration. The power module was tested in a bridgeless-boost converter (Fig. 1) to determine the performance of the module in a system level application. The converter was operated with a switching frequency of 200 kHz with a peak output power of approximately 5 kW. The peak efficiency was found to be 97.5% at 2.9 kW.

  5. Wind Power Development in the United States: Current Progress, Future Trends

    E-Print Network [OSTI]

    Wiser, Ryan H

    2009-01-01

    to lower the cost of offshore wind power, and incrementallyinstalled offshore. From 2018 to 2030, roughly 16 GW of wind

  6. Comment on the future of the Bonneville Power Administration Jim G. Likes, Thurston County, WA

    E-Print Network [OSTI]

    Bonneville is a regional agency that markets federal hydropower and augments its power supply with market, everyday citizens, to pay illegally inflated power costs. Because of this, Bonneville should have the legal costs that are in excess of reasonable prices for power. FERC should work strictly with everyday

  7. INTEGRATED POWER GENERATION SYSTEMS FOR COAL MINE WASTE METHANE UTILIZATION

    SciTech Connect (OSTI)

    Peet M. Soot; Dale R. Jesse; Michael E. Smith

    2005-08-01

    An integrated system to utilize the waste coal mine methane (CMM) at the Federal No. 2 Coal Mine in West Virginia was designed and built. The system includes power generation, using internal combustion engines, along with gas processing equipment to upgrade sub-quality waste methane to pipeline quality standards. The power generation has a nominal capacity of 1,200 kw and the gas processing system can treat about 1 million cubic feet per day (1 MMCFD) of gas. The gas processing is based on the Northwest Fuel Development, Inc. (NW Fuel) proprietary continuous pressure swing adsorption (CPSA) process that can remove nitrogen from CMM streams. The two major components of the integrated system are synergistic. The byproduct gas stream from the gas processing equipment can be used as fuel for the power generating equipment. In return, the power generating equipment provides the nominal power requirements of the gas processing equipment. This Phase III effort followed Phase I, which was comprised of a feasibility study for the project, and Phase II, where the final design for the commercial-scale demonstration was completed. The fact that NW Fuel is desirous of continuing to operate the equipment on a commercial basis provides the validation for having advanced the project through all of these phases. The limitation experienced by the project during Phase III was that the CMM available to operate the CPSA system on a commercial basis was not of sufficiently high quality. NW Fuel's CPSA process is limited in its applicability, requiring a relatively high quality of gas as the feed to the process. The CPSA process was demonstrated during Phase III for a limited time, during which the processing capabilities met the expected results, but the process was never capable of providing pipeline quality gas from the available low quality CMM. The NW Fuel CPSA process is a low-cost ''polishing unit'' capable of removing a few percent nitrogen. It was never intended to process CMM streams containing high levels of nitrogen, as is now the case at the Federal No.2 Mine. Even lacking the CPSA pipeline delivery demonstration, the project was successful in laying the groundwork for future commercial applications of the integrated system. This operation can still provide a guide for other coal mines which need options for utilization of their methane resources. The designed system can be used as a complete template, or individual components of the system can be segregated and utilized separately at other mines. The use of the CMM not only provides an energy fuel from an otherwise wasted resource, but it also yields an environmental benefit by reducing greenhouse gas emissions. The methane has twenty times the greenhouse effect as compared to carbon dioxide, which the combustion of the methane generates. The net greenhouse gas emission mitigation is substantial.

  8. Combined Heat and Power: Effective Energy Solutions for a Sustainable Future

    SciTech Connect (OSTI)

    Shipley, Ms. Anna [Sentech, Inc.; Hampson, Anne [Energy and Environmental Analysis, Inc., an ICF Company; Hedman, Mr. Bruce [Energy and Environmental Analysis, Inc., an ICF Company; Garland, Patricia W [ORNL; Bautista, Paul [Sentech, Inc.

    2008-12-01

    Combined Heat and Power (CHP) solutions represent a proven and effective near-term energy option to help the United States enhance energy efficiency, ensure environmental quality, promote economic growth, and foster a robust energy infrastructure. Using CHP today, the United States already avoids more than 1.9 Quadrillion British thermal units (Quads) of fuel consumption and 248 million metric tons of carbon dioxide (CO{sub 2}) emissions annually compared to traditional separate production of electricity and thermal energy. This CO{sub 2} reduction is the equivalent of removing more than 45 million cars from the road. In addition, CHP is one of the few options in the portfolio of energy alternatives that combines environmental effectiveness with economic viability and improved competitiveness. This report describes in detail the four key areas where CHP has proven its effectiveness and holds promise for the future as an: (1) Environmental Solution: Significantly reducing CO{sub 2} emissions through greater energy efficiency; (2) Competitive Business Solution: Increasing efficiency, reducing business costs, and creating green-collar jobs; (3) Local Energy Solution: Deployable throughout the US; and (4) Infrastructure Modernization Solution: Relieving grid congestion and improving energy security. CHP should be one of the first technologies deployed for near-term carbon reductions. The cost-effectiveness and near-term viability of widespread CHP deployment place the technology at the forefront of practical alternative energy solutions such as wind, solar, clean coal, biofuels, and nuclear power. Clear synergies exist between CHP and most other technologies that dominate the energy and environmental policy dialogue in the country today. As the Nation transforms how it produces, transports, and uses the many forms of energy, it must seize the clear opportunity afforded by CHP in terms of climate change, economic competitiveness, energy security, and infrastructure modernization. The energy efficiency benefits of CHP offer significant, realistic solutions to near- and long-term energy issues facing the Nation. With growing demand for energy, tight supply options, and increasing environmental constraints, extracting the maximum output from primary fuel sources through efficiency is critical to sustained economic development and environmental stewardship. Investment in CHP would stimulate the creation of new 'green-collar' jobs, modernize aging energy infrastructure, and protect and enhance the competitiveness of US manufacturing industries. The complementary roles of energy efficiency, renewable energy, and responsible use of traditional energy supplies must be recognized. CHP's proven performance and potential for wider use are evidence of its near-term applicability and, with technological improvements and further elimination of market barriers, of its longer term promise to address the country's most important energy and environmental needs. A strategic approach is needed to encourage CHP where it can be applied today and address the regulatory and technical challenges preventing its long-term viability. Experience in the United States and other countries shows that a balanced set of policies, incentives, business models, and investments can stimulate sustained CHP growth and allow all stakeholders to reap its many well-documented benefits.

  9. Ris Energy Report 4 Supply technologies in the future energy system 10 Supply technologies in the future energy system

    E-Print Network [OSTI]

    fuel (REtrol, Chapter 4) or heat, whether from direct electric heating, or heat pumps. Other uses biomass covers wood, agricultural residues, energy crops, household waste and agro-industrial waste and heat Denmark is one of the few countries where the use of both straw and wood in power plants

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

    E-Print Network [OSTI]

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

    2007-01-01

    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 ...

  11. Generalized Lyapunov Function for Stability Analysis of Interconnected Power Systems

    E-Print Network [OSTI]

    Pota, Himanshu Roy

    Generalized Lyapunov Function for Stability Analysis of Interconnected Power Systems M. A. Mahmud of Lyapunov function is necessary to analyze the stability of a system. This paper presents an idea for formulating generalized Lyapunov function for the stability analysis of interconnected power systems. Lyapunov

  12. The Brief History and Future Development of Earth System Models:

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week Day Year(active tab) 2016 «The Breakthrough Behind

  13. System-wide emissions implications of increased wind power penetration.

    SciTech Connect (OSTI)

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

    2012-01-01

    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.

  14. Hybrid robust predictive optimization method of power system dispatch

    DOE Patents [OSTI]

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

    2011-08-02

    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.

  15. Benefits of Stochastic Scheduling for Power Systems with Significant Installed Wind Power

    E-Print Network [OSTI]

    Abstract-- Wind energy on a power system alters the unit commitment and dispatch problem, as it adds to provide large amounts of their electrical energy requirements from wind power. This wind power will have (regulation and frequency issues), to hours and days (unit commitment and dispatch), to years (transmission

  16. Ultra Efficient Combined Heat, Hydrogen, and Power System

    SciTech Connect (OSTI)

    2010-10-28

    Description of CHHP system which utilizes a high-temperature fuel cell to provide on-site process reducing gas, clean power, and heat.

  17. Methods for Procuring Power System Flexibility, Greening the...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    interchange. METHODS FOR PROCURING POWER SYSTEM FLEXIBILITY Intraday Markets and Sub-Hourly Dispatch Wholesale energy markets can encourage flexibility by employing intraday...

  18. Power Electronics and Balance of System Hardware Technologies

    Office of Energy Efficiency and Renewable Energy (EERE)

    DOE is targeting solar technology improvements related to power electronics and balance of system (BOS) hardware technologies to reduce the installed cost of solar photovoltaic (PV) electricity and...

  19. Artificial Neural Network for Optimized Power System Management

    E-Print Network [OSTI]

    OLeary, Daniel Albert

    2015-01-01

    smart grid to influence distributed generation power systems reduced down time and costssmart grid with flexible EV charging, scientists used PSO algorithms to minimize cost

  20. Combined Heat and Power System Enables 100% Reliability at Leading...

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

    buildings on nearly 1,000 acres. Photo courtesy of Thermal Energy Corporation Combined Heat and Power System Enables 100% Reliability at Leading Medical Campus Recovery Act...

  1. Combined Heat and Power System Achieves Millions in Cost Savings...

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

    campus, which includes 750 buildings. Photo courtesy of Texas A&M University Combined Heat and Power System Achieves Millions in Cost Savings at Large University Recovery Act...

  2. Turner Hunt Ocean Renewable (TRL 4 System) - THOR's Power Method...

    Energy Savers [EERE]

    More Documents & Publications CX-004722: Categorical Exclusion Determination Vortex Hydro Energy (TRL 5 6 System) - Advanced Integration of Power Take-Off in VIVACE Ocean...

  3. Visualization of Electric Power System Information: Workshop Proceedings

    SciTech Connect (OSTI)

    Kroposki, B.; Komomua, C.

    2013-01-01

    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.

  4. Ultra Efficient Combined Heat, Hydrogen, and Power System - Fact...

    Broader source: Energy.gov (indexed) [DOE]

    Inc., in collaboration with Abbott Furnace Company, is developing a combined heat, hydrogen, and power (CHHP) system that utilizes reducing gas produced by a high-temperature...

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

    Broader source: Energy.gov (indexed) [DOE]

    Federal Energy Regulatory Commission (FERC) presentation on demand response as power system resources before the Electicity Advisory Committee, October 29, 2010 Demand Response as...

  6. AFTER A Framework for electrical power sysTems vulnerability...

    Open Energy Info (EERE)

    AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration (Smart Grid Project) (Ireland) Jump to: navigation, search Project Name AFTER A...

  7. AFTER A Framework for electrical power sysTems vulnerability...

    Open Energy Info (EERE)

    AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration (Smart Grid Project) (France) Jump to: navigation, search Project Name AFTER A...

  8. AFTER A Framework for electrical power sysTems vulnerability...

    Open Energy Info (EERE)

    AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration (Smart Grid Project) (United Kingdom) Jump to: navigation, search Project Name...

  9. AFTER A Framework for electrical power sysTems vulnerability...

    Open Energy Info (EERE)

    AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration (Smart Grid Project) (Germany) Jump to: navigation, search Project Name AFTER A...

  10. AFTER A Framework for electrical power sysTems vulnerability...

    Open Energy Info (EERE)

    AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration (Smart Grid Project) (Norway) Jump to: navigation, search Project Name AFTER A...

  11. AFTER A Framework for electrical power sysTems vulnerability...

    Open Energy Info (EERE)

    AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration (Smart Grid Project) (Czech Republic) Jump to: navigation, search Project Name...

  12. AFTER A Framework for electrical power sysTems vulnerability...

    Open Energy Info (EERE)

    AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration (Smart Grid Project) (Belgium) Jump to: navigation, search Project Name AFTER A...

  13. AFTER A Framework for electrical power sysTems vulnerability...

    Open Energy Info (EERE)

    AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration (Smart Grid Project) Jump to: navigation, search Project Name AFTER A Framework...

  14. Brayton Cycle Baseload Power Tower CSP System

    Broader source: Energy.gov [DOE]

    This presentation was delivered at the SunShot Concentrating Solar Power (CSP) Program Review 2013, held April 23–25, 2013 near Phoenix, Arizona.

  15. Power Electronic Thermal System Performance and Integration ...

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

    More Documents & Publications Motor Thermal Control Thermal Stress and Reliability for Advanced Power Electronics and Electric Machines Integrated Vehicle Thermal Management...

  16. Solid oxide fuel cell steam reforming power system

    DOE Patents [OSTI]

    Chick, Lawrence A.; Sprenkle, Vincent L.; Powell, Michael R.; Meinhardt, Kerry D.; Whyatt, Greg A.

    2013-03-12

    The present invention is a Solid Oxide Fuel Cell Reforming Power System that utilizes adiabatic reforming of reformate within this system. By utilizing adiabatic reforming of reformate within the system the system operates at a significantly higher efficiency than other Solid Oxide Reforming Power Systems that exist in the prior art. This is because energy is not lost while materials are cooled and reheated, instead the device operates at a higher temperature. This allows efficiencies higher than 65%.

  17. EIS-0066: The Role of Bonneville Power Administration in the Pacific Northwest Power Supply System- including its Participation in a Hydro-Thermal Power Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Bonneville Power Administration (BPA) prepared this EIS to examine the environmental impacts of the Pacific Northwest Power Planning and Conservation Act, which will foster regional electric power planning in the four Northwest states, as well as increase BPA’s authority to address future power needs.

  18. MHD advanced power train. Phase 1, Final report: Volume 3, Power train system description and specification for 200MWe Plant

    SciTech Connect (OSTI)

    Jones, A.R.

    1985-08-01

    This System Design Description and Specification provides the basis for the design of the magnetohydrodynamic (MHD) Power Train (PT) for a nominal 200 MWe early commercial tiHD/Steam Power Plant. This document has been developed under Task 2, Conceptual Design, of Contract DE-AC22-83PC60575 and is to be used by the project as the controlling and coordinating documentation during future design efforts. Modification and revision of this specification will occur as the design matures, and tiie-Westinghouse MHD Project Manager will be the focal point for maintaining this document and issuing periodic revisions. This document is intended to delineate the power train and-power train components requirements and assumptions that properly reflect the MHD/Steam Power Plant in the PT design. The parameters discussed in this document have been established through system calculations as well as through constraints set by technology and by limitations on materials, cost, physical processes associated with MHD, and the expected operating data for the plant. The specifications listed in this document have precedence over all referenced documents. Where this specification appears to conflict with the requirements of a reference document, such conflicts should be brought to the attention of the Westinghouse MHD Project Manager for resolution.

  19. Overview of the use of the PCI bus in present and future high energy physics data acquisition systems

    E-Print Network [OSTI]

    Van Praag, A; Matheys, J P; Van de Vyvre, P; Anguelov, T; Georgiev, G; Piperov, S; Vankov, I; Gillot, D; Guglielmi, A M; Orel, O; Sytin, A N

    1995-01-01

    Overview of the use of the PCI bus in present and future high energy physics data acquisition systems

  20. 1/12/14 dotTech Windmills could power your smartphone in the future --micro-windmills, of course | Reviews, news, tips, and tricks | dotTech dottech.org/143628/windmills-could-power-your-smartphone-in-the-future-micro-windmills-of-course/print 1/2

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    1/12/14 dotTech Windmills could power your smartphone in the future -- micro-windmills, of course | Reviews, news, tips, and tricks | dotTech dottech.org/143628/windmills-could-power-your-smartphone-in-the-future-micro-windmills-of-course/print 1/2 - dotTech - http://dottech.org - Windmills could power your smartphone in the future -- micro

  1. Wind Power Development in the United States: Current Progress, Future Trends

    E-Print Network [OSTI]

    Wiser, Ryan H

    2009-01-01

    supply curve for wind using cost and performance assumptionspressure on installed wind project costs while the industryon U.S. Wind Power Installation, Cost, and Performance

  2. INVITED REVIEW Plant functional types in Earth system models: past experiences and future

    E-Print Network [OSTI]

    INVITED REVIEW Plant functional types in Earth system models: past experiences and future Published electronically: 2 May 2014 Background Earth system models describe the physical, chemical are to overcome these and other shortcomings. Key words: Plant functional types, PFT, Earth system model, ESM

  3. IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 29, NO. 1, JANUARY 2014 203 Distribution Locational Marginal Pricing for Optimal

    E-Print Network [OSTI]

    Oren, Shmuel S.

    Marginal Pricing for Optimal Electric Vehicle Charging Management Ruoyang Li, Student Member, IEEE, Qiuwei Wu, Member, IEEE, and Shmuel S. Oren, Fellow, IEEE Abstract--This paper presents an integrated vehicle (EV) loads in future power systems. In the proposed approach, the distribution system op- erator

  4. Intelligent Predictive Control Methods for Synchronous Power System

    E-Print Network [OSTI]

    Rizvi, Syed Z.

    @kfupm.edu.sa Abstract--In this paper, an intelligent Model Predictive Con- troller (MPC) for a Synchronous Power Machine of a Single synchronous Machine on Infinite Bus (SMIB) has been one of the most important problems for powerIntelligent Predictive Control Methods for Synchronous Power System Muhammad S. Yousuf Electrical

  5. Topic 5: Renewable Power 1Networking and Distributed Systems

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    in Smart Grid 3 · We are interested in power plants with low carbon footprint: · Both CO2 and CH4 in Smart Grid 5 · Carbon footprint is also defined for power plants: · Conventional coal combustion hasTopic 5: Renewable Power 1Networking and Distributed Systems Department of Electrical & Computer

  6. CyberPhysical System Security for the Electric Power Grid

    E-Print Network [OSTI]

    Manimaran, Govindarasu

    INVITED P A P E R Cyber­Physical System Security for the Electric Power Grid Control in power for the power grid as the functional composition of the following: 1) the physical Manuscript received June 29 | The development of a trustworthy smart grid requires a deeper understanding of potential impacts resulting from

  7. SELFMONITORING DISTRIBUTED MONITORING SYSTEM FOR NUCLEAR POWER PLANTS (PRELIMINARY VERSION)

    E-Print Network [OSTI]

    SELF­MONITORING DISTRIBUTED MONITORING SYSTEM FOR NUCLEAR POWER PLANTS (PRELIMINARY VERSION) Aldo and identification are extremely important activities for the safety of a nuclear power plant. In particular inside huge and complex production plants. 1 INTRODUCTION Safety in nuclear power plants requires

  8. Future nano- and micro-systems using nanobonding technologies

    SciTech Connect (OSTI)

    Howlader, Matiar M. R. E-mail: jamal@mcmaster.ca; Deen, M. Jamal E-mail: jamal@mcmaster.ca

    2014-03-31

    In this paper, some of the recent achievements in surface-activation-based nanobonding technology are described. This bonding technology allows for the combination of electronic, photonic, fluidic and mechanical functionalities into small form-factor systems for emerging applications in health diagnostics and screening, for example. These nanobonding technologies provide void-free, strong, and nanoscale bonding at room temperature or at low temperatures (<200 °C), and they do not require chemicals, adhesives, or high external pressure. The interfaces of the nanobonded materials in ultra-high vacuum and in air correspond to the covalent bonds, and hydrogen and hydroxyl bonds, respectively, which gives rise to excellent bonding properties. Further, these nanobonding technologies are well-suited for the development of low-cost, high-performance miniaturized systems such as biophotonic imaging systems.

  9. Driving the Future Argonne's vehicle systems reseArch

    E-Print Network [OSTI]

    Kemner, Ken

    of alternative fuels and advanced technologies. Heating and air conditioning systems have significant impacts is equipped to evaluate vehicles and components under extreme hot and cold temperature conditions (from 20°F to 95°F). This capability enables researchers to: Validate performance targets for battery packs

  10. Self-Constructive High-Rate System Energy Modeling for Battery-Powered Mobile Systems

    E-Print Network [OSTI]

    Zhong, Lin

    of a system in the lab using high quality external power measurements. Such methods are not only laborSelf-Constructive High-Rate System Energy Modeling for Battery-Powered Mobile Systems Mian Dong, low power, mobile systems 1. Introduction An energy model estimates the energy consumption by a mobile

  11. G REEN FLASH PROJECT The electrical power demands of ultrascale computers threaten to limit the future

    E-Print Network [OSTI]

    Oliker, Leonid

    feasible within the next 15 years, but that they face signifi- cant challenges. One of the challenges (enough to power approximately 2,600 homes)is"perhapsachievable,"accordingtotheE3 findings led to supercomputers that consume egregious amounts of electrical power. Other performance metrics

  12. High Altitude Wind Power Systems: A Survey on Flexible Power Kites Mariam Ahmed*

    E-Print Network [OSTI]

    Boyer, Edmond

    High Altitude Wind Power Systems: A Survey on Flexible Power Kites Mariam Ahmed* Grenoble (G2ELab) 38402 Saint-Martin d'Heres, France Abstract-- High altitude wind energy (HAWE) is a new interest in sustainable development, renewable energy systems, such as solar photo-voltaic, wind and tidal

  13. Designing Optimal Heat and Power Systems for Industrial Processes 

    E-Print Network [OSTI]

    Rutkowski, M. A.; Witherell, W. D.

    1988-01-01

    . It must facilitate understanding the tradeoffs among the components of the heat and power system including steam generation, furnaces used for process heating, steam and gas turbines, heat exchange networks, heat pumps, refrigeration systems, and purchased...

  14. Design of control for efficiency of AUV power systems

    E-Print Network [OSTI]

    Ware, Laura M. (Laura Marie)

    2012-01-01

    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 ...

  15. 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

  16. A Power Control System for a Paper Mill 

    E-Print Network [OSTI]

    Richter, G. H.; Keenon, D.

    1979-01-01

    This paper describes the Power Demand Control System installed at the Lufkin Mill of Southland Division, St. Regis Paper Company. The system is based around a microprocessor unit that automatically changes the output of the generators to maintain a...

  17. Multilevel Converter Topologies for Utility Scale Solar Photovoltaic Power Systems 

    E-Print Network [OSTI]

    Essakiappan, Somasundaram

    2014-04-30

    of ground fault protection systems. Common mode voltages and currents present in high and low power PV systems are analyzed and mitigation strategies such as common mode filter and transformer shielding are proposed to minimize them....

  18. Photovoltaic-powered desalination system for remote Australian communities 

    E-Print Network [OSTI]

    Richards, B.S.; Schäfer, Andrea

    2003-01-01

    This paper reports on the design and successful field testing of a photovoltaic (PV)-powered desalination system. The system described here is intended for use in remote areas of the Australian outback, where fresh water is extremely limited...

  19. ECE 461/2: Power Systems I Calculus and algebra

    E-Print Network [OSTI]

    Schumacher, Russ

    ECE 461/2: Power Systems I Calculus and algebra - Learns basic capabilities of PSSE AC system algebra - PSSE software IN OUT 3As of 3/1 /13 #12;

  20. Steady state load models for power system analysis 

    E-Print Network [OSTI]

    Cresswell, Charles

    2009-01-01

    The last full review of load models used for power system studies occurred in the 1980s. Since then, new types of loads have been introduced and system load mix has changed considerably. The examples of newly introduced ...

  1. Interactive long-term simulation for power system restoration planning

    SciTech Connect (OSTI)

    Fountas, N.A.; Hatziargyriou, N.D. [National Technical Univ., Athens (Greece)] [National Technical Univ., Athens (Greece); Orfanogiannis, C.; Tasoulis, A. [Public Power Corp., Athens (Greece)] [Public Power Corp., Athens (Greece)

    1997-02-01

    The problem of restoring a power system following a complete blackout is complex and multi-faceted. Many control actions have to be performed on time, while constraints such as power balance and system stability have to be carefully respected. In this paper, the application of long-term dynamic analysis in studying frequency and voltage responses due to load and generation mismatches in isolated systems or during extension of the existing system in the restoration phase is presented. Simulation results covering the main steps of the Hellenic power system restoration process following a recent total blackout are presented and discussed.

  2. Future non-linear stability for solutions of the Einstein-Vlasov system of Bianchi types II and VI$_0$

    E-Print Network [OSTI]

    Ernesto Nungesser

    2012-08-30

    In a recent paper arXiv:1208.4231 we have treated the future non-linear stability for reflection symmetric solutions of the Einstein-Vlasov system of Bianchi types II and VI$_0$. We have been able now to remove the reflection symmetry assumption, thus treating the non-diagonal case. Apart from the increasing complexity the methods have been essentially the same as in the diagonal case, showing that they are thus quite powerful. Here the challenge was to put the equations in a form that permits the use of the previous results. We are able to conclude that after a possible basis change the future of the non-diagonal spacetimes in consideration is asymptotically diagonal.

  3. Catalog of DC Appliances and Power Systems

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01

    Interaction with Utility TED AlertMe Yes Yes ZigBee*/Internet ZigBee/Internet Blue Line PowerCost Yes Wi-Fi100 Only through utilities ZigBee/ Wi-Fi Monitoring/Remote

  4. Catalog of DC Appliances and Power Systems

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01

    Energy Efficiency Ratio: An instantaneous measure of air conditioningenergy efficiency, especially with large power users like air conditioningair-conditioning 48V http://www.austinsales.net/products/solcool/index.ht ml Energy Efficiency

  5. Combustion systems for power-MEMS applications

    E-Print Network [OSTI]

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

    2004-01-01

    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 ...

  6. Update on Energy Saving Opportunities in Industrial Electrical Power Systems 

    E-Print Network [OSTI]

    Frasure, J. W.; Fredericks, C. J.

    1986-01-01

    application of capacitors to improve plant power factors will raise voltage levels and reduce'line currents, yielding a reduction in system losses. Also, by reducing var demand, capacitors can reduce or eliminate utility power-factor or demand charges..., force the industrial power user to continuously update and evaluate available means of saving electrical energy. This paper provides a survey of one company's experience with several methods of energy conservation in electrical distribution systems...

  7. Development of Advanced Technologies to Reduce Design, Fabrication and Construction Costs for Future Nuclear Power Plants

    SciTech Connect (OSTI)

    Camillo A. DiNunzio Framatome ANP DE& S; Dr. Abhinav Gupta Assistant Professor NCSU; Dr. Michael Golay Professor MIT Dr. Vincent Luk Sandia National Laboratories; Rich Turk Westinghouse Electric Company Nuclear Systems; Charles Morrow, Sandia National Laboratories; Geum-Taek Jin, Korea Power Engineering Company Inc.

    2002-11-30

    OAK-B135 This report presents a summation of the third and final year of a three-year investigation into methods and technologies for substantially reducing the capital costs and total schedule for future nuclear plants. In addition, this is the final technical report for the three-year period of studies.

  8. Nonlinear Electrical Simulation of High-Power Synchronous Generator System

    E-Print Network [OSTI]

    Wu, Thomas

    power density, the generator operates in nonlinear region of the magnetic circuit. Magnetic Finite for motor simulation [I]. Fardoun simulated permanent-magnet machine drive system using SPlCE [2]. NatarajanNonlinear Electrical Simulation of High-Power Synchronous Generator System Jie Chen and Thomas Wu

  9. Wojciech.Wiechowski@wtwps.com POWER SYSTEM TECHNICAL PERFORMANCE ISSUES

    E-Print Network [OSTI]

    Bak, Claus Leth

    Wojciech.Wiechowski@wtwps.com POWER SYSTEM TECHNICAL PERFORMANCE ISSUES RELATED TO THE APPLICATION of work of Cigre Working Group C4.502 "Power system technical performance issues related underground transmission project are identified. Cable line modeling and model verification techniques

  10. Influence of instrument transformers on power system protection 

    E-Print Network [OSTI]

    Naodovic, Bogdan

    2005-08-29

    Instrument transformers are a crucial component of power system protection. They supply the protection system with scaled-down replicas of current and voltage signals present in a power network to the levels which are safe and practical to op- erate...

  11. Dynamic wind turbine models in power system simulation tool

    E-Print Network [OSTI]

    Dynamic wind turbine models in power system simulation tool DIgSILENT Anca D. Hansen, Florin Iov Iov, Poul Sřrensen, Nicolaos Cutululis, Clemens Jauch, Frede Blaabjerg Title: Dynamic wind turbine system simulation tool PowerFactory DIgSILENT for different wind turbine concepts. It is the second

  12. Cost comparison of the satellite power system and six alternative technologies

    SciTech Connect (OSTI)

    Wolsko, T.; Samsa, M.

    1981-04-01

    A framework is described for comparing the Satellite Power System (SPS) with various projected alternative energy sources on the basis of technical possibility, economic viability, and social and environmental acceptability. Each of the following energy sources is briefly described: conventional coal, light water reactor, coal gasification/combined cycle, liquid-metal fast-breeder reactor, central station terrestrial photovoltaic, fusion, and the SPS. The analysis consists of comparison of characterizations, side-by-side analysis, and alternative futures analysis. (LEW)

  13. ELEN$4511 POWER$SYSTEMS$ANALYSIS$FINALPROJECT! ! Electric!Vehicles!Charging!Load!Calculations!based!on! !

    E-Print Network [OSTI]

    Lavaei, Javad

    !shifting!role!into!full!play.! ! In!my!project,!starting!from!the!development!status!and!trends!of!electric!vehicles,! analyze!developing!countries'!electric!charging!load!calculation!methods!under!the!charging!mode,!and! calculate!and!analyze!developing!countries'!future!electric!vehicle!charging!load.! ! Also,!in!my!project!the!reliability!and!energy!efficiency!of!power!system,!to! build!the!electric!cars!charging!model,!to!develop!appropriate!charging!strategies! for!users!and!to

  14. The Future of Embedded Linux C3Expo, June 2005

    E-Print Network [OSTI]

    The Future of Embedded Linux C3Expo, June 2005 Stephen A. Edwards Columbia University The Future, Columbia Pictures, 1940 In a word, plumbing. The Future of Embedded Linux ­ p. 2/ #12;Embedded System Challenges Real-time Complexity Power Cost The Future of Embedded Linux ­ p. 3/ #12;System Complexity Growing

  15. Modeling Framework and Validation of a Smart Grid and Demand Response System for Wind Power Integration

    SciTech Connect (OSTI)

    Broeer, Torsten; Fuller, Jason C.; Tuffner, Francis K.; Chassin, David P.; Djilali, Ned

    2014-01-31

    Electricity generation from wind power and other renewable energy sources is increasing, and their variability introduces new challenges to the power system. The emergence of smart grid technologies in recent years has seen a paradigm shift in redefining the electrical system of the future, in which controlled response of the demand side is used to balance fluctuations and intermittencies from the generation side. This paper presents a modeling framework for an integrated electricity system where loads become an additional resource. The agent-based model represents a smart grid power system integrating generators, transmission, distribution, loads and market. The model incorporates generator and load controllers, allowing suppliers and demanders to bid into a Real-Time Pricing (RTP) electricity market. The modeling framework is applied to represent a physical demonstration project conducted on the Olympic Peninsula, Washington, USA, and validation simulations are performed using actual dynamic data. Wind power is then introduced into the power generation mix illustrating the potential of demand response to mitigate the impact of wind power variability, primarily through thermostatically controlled loads. The results also indicate that effective implementation of Demand Response (DR) to assist integration of variable renewable energy resources requires a diversity of loads to ensure functionality of the overall system.

  16. Wind Power Today: Building a New Energy Future, Wind and Hydropower Technologies Program 2009 (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2009-04-01

    Wind Power Today is an annual publication that provides an overview of the wind energy research conducted by the U.S. Department of Energy Wind and Hydropower Technologies Program.

  17. The future of nuclear power in the United States : economic and regulatory challenges

    E-Print Network [OSTI]

    Joskow, Paul L.

    2006-01-01

    This paper examines the economic and regulatory challenges that must be faced by potential investors in new nuclear power plants in the United States. The historical development of the existing fleet of over 100 nuclear ...

  18. A portable power system using PEM fuel cells

    SciTech Connect (OSTI)

    Long, E.

    1997-12-31

    Ball has developed a proof-of-concept, small, lightweight, portable power system. The power system uses a proton exchange membrane (PEM) fuel cell stack, stored hydrogen, and atmospheric oxygen as the oxidant to generate electrical power. Electronics monitor the system performance to control cooling air and oxidant flow, and automatically do corrective measures to maintain performance. With the controller monitoring the system health, the system can operate in an ambient environment from 0 C to +50 C. The paper describes system testing, including load testing, thermal and humidity testing, vibration and shock testing, field testing, destructive testing of high-pressure gas tanks, and test results on the fuel cell power system, metal hydride hydrogen storage, high-pressure hydrogen gas storage, and chemical hydride hydrogen storage.

  19. Catalog of DC Appliances and Power Systems

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01

    mainly fluorescent and LED lighting and DC ceiling fans. TheFluorescent, CFL Lighting systems: LED Fluorescent and CFLlamps CFL lamps LED lamp CFL floodlight Lighting systems:

  20. Catalog of DC Appliances and Power Systems

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01

    but also include electricity storage. Storage will bea net-metered PV system, electricity storage and an optionalTypical Operation: Electricity storage systems for grid-

  1. On the form of the power equation for modeling solar chimney power plant systems

    E-Print Network [OSTI]

    Fathi, Nima; Vorobieff, Peter

    2015-01-01

    Recently several mathematical models of a solar chimney power plant were derived, studied for a variety of boundary conditions, and compared against CFD calculations. The importance of these analyses is about the accuracy of the derived pressure drop and output power equation for solar chimney power plant systems (SCPPS). We examine the assumptions underlying the derivation and present reasons to believe that some of the derived equations, specifically the power equation in this model, may require a correction to be applicable in more realistic conditions. The analytical resutls are compared against the available experimental data from the Manzanares power plant.

  2. Accelerating Acceptance of Fuel Cell Backup Power Systems - Final Report

    SciTech Connect (OSTI)

    Petrecky, James; Ashley, Christopher

    2014-07-21

    Since 2001, Plug Power has installed more than 800 stationary fuel cell systems worldwide. Plug Power’s prime power systems have produced approximately 6.5 million kilowatt hours of electricity and have accumulated more than 2.5 million operating hours. Intermittent, or backup, power products have been deployed with telecommunications carriers and government and utility customers in North and South America, Europe, the United Kingdom, Japan and South Africa. Some of the largest material handling operations in North America are currently using the company’s motive power units in fuel cell-powered forklifts for their warehouses, distribution centers and manufacturing facilities. The low-temperature GenSys fuel cell system provides remote, off-grid and primary power where grid power is unreliable or nonexistent. Built reliable and designed rugged, low- temperature GenSys delivers continuous or backup power through even the most extreme conditions. Coupled with high-efficiency ratings, low-temperature GenSys reduces operating costs making it an economical solution for prime power requirements. Currently, field trials at telecommunication and industrial sites across the globe are proving the advantages of fuel cells—lower maintenance, fuel costs and emissions, as well as longer life—compared with traditional internal combustion engines.

  3. Bi-directional power control system for voltage converter

    DOE Patents [OSTI]

    Garrigan, N.R.; King, R.D.; Schwartz, J.E.

    1999-05-11

    A control system for a voltage converter includes: a power comparator for comparing a power signal on input terminals of the converter with a commanded power signal and producing a power comparison signal; a power regulator for transforming the power comparison signal to a commanded current signal; a current comparator for comparing the commanded current signal with a measured current signal on output terminals of the converter and producing a current comparison signal; a current regulator for transforming the current comparison signal to a pulse width modulator (PWM) duty cycle command signal; and a PWM for using the PWM duty cycle command signal to control electrical switches of the converter. The control system may further include: a command multiplier for converting a voltage signal across the output terminals of the converter to a gain signal having a value between zero (0) and unity (1), and a power multiplier for multiplying the commanded power signal by the gain signal to provide a limited commanded power signal, wherein power comparator compares the limited commanded power signal with the power signal on the input terminals. 10 figs.

  4. Bi-directional power control system for voltage converter

    DOE Patents [OSTI]

    Garrigan, Neil Richard (Niskayuna, NY); King, Robert Dean (Schenectady, NY); Schwartz, James Edward (Slingerlands, NY)

    1999-01-01

    A control system for a voltage converter includes: a power comparator for comparing a power signal on input terminals of the converter with a commanded power signal and producing a power comparison signal; a power regulator for transforming the power comparison signal to a commanded current signal; a current comparator for comparing the commanded current signal with a measured current signal on output terminals of the converter and producing a current comparison signal; a current regulator for transforming the current comparison signal to a pulse width modulator (PWM) duty cycle command signal; and a PWM for using the PWM duty cycle command signal to control electrical switches of the converter. The control system may further include: a command multiplier for converting a voltage signal across the output terminals of the converter to a gain signal having a value between zero (0) and unity (1), and a power multiplier for multiplying the commanded power signal by the gain signal to provide a limited commanded power signal, wherein power comparator compares the limited commanded power signal with the power signal on the input terminals.

  5. Subsystem Interaction Analysis in Power Distribution Systems of Next Generation Airlifters

    E-Print Network [OSTI]

    Lindner, Douglas K.

    tolerant, autonomously controlled electrical power system to deliver high quality power from the sources electronics, fault tolerant electrical power distribution systems and electrically driven primary flight1 Subsystem Interaction Analysis in Power Distribution Systems of Next Generation Airlifters Sriram

  6. Fault Current Issues for Market Driven Power Systems with Distributed Generation

    E-Print Network [OSTI]

    1 Fault Current Issues for Market Driven Power Systems with Distributed Generation Natthaphob of installing distributed generation (DG) to electric power systems. The proliferation of new generators creates Terms--Distributed / dispersed generation, power distri- bution, power system protection, fault

  7. Natural Circulation in Water Cooled Nuclear Power Plants Phenomena, models, and methodology for system reliability assessments

    SciTech Connect (OSTI)

    Jose Reyes

    2005-02-14

    In recent years it has been recognized that the application of passive safety systems (i.e., those whose operation takes advantage of natural forces such as convection and gravity), can contribute to simplification and potentially to improved economics of new nuclear power plant designs. In 1991 the IAEA Conference on ''The Safety of Nuclear Power: Strategy for the Future'' noted that for new plants the use of passive safety features is a desirable method of achieving simplification and increasing the reliability of the performance of essential safety functions, and should be used wherever appropriate''.

  8. Combined Heat and Power: Effective Energy Solutions for a Sustainable Future

    SciTech Connect (OSTI)

    Shipley, Anna; Hampson, Anne; Hedman, Bruce; Garland, Patti; Bautista, Paul

    2008-12-01

    This report describes in detail the four key areas where CHP has proven its effectiveness and holds promise for the future—as an: environmental solution, significantly reducing CO2 emissions through greater energy efficiency; competitive business solution, increasing efficiency, reducing business costs, and creating green-collar jobs; local energy solution, deployable throughout the United States; and infrastructure modernization solution, relieving grid congestion and improving energy security.

  9. The RF power system for the SNS linac

    SciTech Connect (OSTI)

    Tallerico, P.J.; Reass, W.A.

    1998-12-31

    The initial goal of the SNS project is to produce a 1 MW average beam of protons with short pulse lengths onto a neutron-producing target. The objective of the SNS RF system is to generate 117 MW peak of pulsed 805 MHz microwave power with an accelerated beam pulse length of 1.04 ms at a 60 Hz repetition rate. The power system must be upgradeable in peak power to deliver 2 MW average power to the neutron target. The RF system also requires about 3 MW peak of RF power at 402.5 MHz, but that system is not discussed here. The design challenge is to produce an RF system at minimum cost, that is very reliable and economical to operate. The combination of long pulses and high repetition rates make conventional solutions, such as the pulse transformer and transmission line method, very expensive. The klystron, with a modulating anode, and 1.5 MW of peak output power is the baseline RF amplifier, an 56 are required in the baseline design. The authors discuss four power system configurations that are the candidates for the design. The baseline design is a floating-deck modulating anode system. A second power system being investigated is the fast-pulsed power supply, that can be turned on and off with a rise time of under 0.1 ms. This could eliminate the need for a modulator, and drastically reduce the energy storage requirements. A third idea is to use a pulse transformer with a series IGBT switch and a bouncer circuit on the primary side, as was done for the TESLA modulator. A fourth method is to use a series IGBT switch at high voltage, and not use a pulse transformer. The authors discuss the advantages and problems of these four types of power systems, but they emphasize the first two.

  10. Power Systems Engineer | Princeton Plasma Physics Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeedingProgram Guidelines This document w w w.pv - te ch.orgPowerComplex

  11. Power system design | Princeton Plasma Physics Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesseworkSURVEYI/OPerformancePi Day PiSafetyContact Power ServicesPower

  12. LOS ALAMOS NEUTRON SCIENCE CENTER CONTRIBUTIONS TO THE DEVELOPMENT OF FUTURE POWER REACTORS

    SciTech Connect (OSTI)

    GAVRON, VICTOR I. [Los Alamos National Laboratory; HILL, TONY S. [Los Alamos National Laboratory; PITCHER, ERIC J. [Los Alamos National Laboratory; TOVESSON, FREDERIK K. [Los Alamos National Laboratory

    2007-01-09

    The Los Alamos Neutron Science Center (LANSCE) is a large spallation neutron complex centered around an 800 MeV high-currently proton accelerator. Existing facilities include a highly-moderated neutron facility (Lujan Center) where neutrons between thermal and keV energies are produced, and the Weapons Neutron Research Center (WNR), where a bare spallation target produces neutrons between 0.1 and several hundred MeV.The LANSCE facility offers a unique capability to provide high precision nuclear data over a large energy region, including that for fast reactor systems. In an ongoing experimental program the fission and capture cross sections are being measured for a number of minor actinides relevant for Generation-IV reactors and transmutation technology. Fission experiments makes use of both the highly moderated spallation neutron spectrum at the Lujan Center, and the unmoderated high energy spectrum at WNR. By combininb measurements at these two facilities the differential fission cross section is measured relative to the {sup 235}U(n,f) standard from subthermal energies up to about 200 MeV. An elaborate data acquisition system is designed to deal with all the different types of background present when spanning 10 energy decades. The first isotope to be measured was {sup 237}Np, and the results were used to improve the current ENDF/B-VII evaluation. Partial results have also been obtained for {sup 240}Pu and {sup 242}Pu, and the final results are expected shortly. Capture cross sections are measured at LANSCE using the Detector for Advanced Neutron Capture Experiments (DANCE). This unique instrument is highly efficient in detecting radiative capture events, and can thus handle radioactive samples of half-lives as low as 100 years. A number of capture cross sections important to fast reaction applications have been measured with DANCE. The first measurement was on {sup 237}Np(n,{gamma}), and the results have been submitted for publication. Other capture measurements in progress include {sup 240}Pu and {sup 242}Pu. The United States recently announced the Global Nuclear Energy Partnership (GNEP), with the goal of closing the commercial nuclear fuel cycle while minimizing proliferation risk. GNEP achieves these goals using fast-spectrum nuclear reactors powered by new transmutation fuels that contain significant quantities of minor actinides. The proposed Materials Test Station (MTS) will provide the GNEP with a cost-effective means of obtaining domestic fast-spectrum irradiations of advanced transmutation fuel forms and structural materials, which is an important step in the fuels qualification process. The MTS will be located at the LANSCE, and will be driven by a 1.08-MW proton beam. Th epeak neutron flux in the irradiation region is 1.67 x 10{sup 15} n/cm{sup 2}/s, and the energy spectrum is similar to that of a fast reactor, with the addition of a high-energy tail. The facility is expected to operate at least 4,400 hours per year. Fuel burnup rates will exceed 4% per year, and the radiation damage rate in iron will be 18 dpa (displacements per atom) per year. The construction cost is estimated to be $73M (including 25% contingency), with annual operating costs in the range of $6M to $10M. Appropriately funded, the MTS could begin operation in 2010.

  13. An Approach to Autonomous Control for Space Nuclear Power Systems

    SciTech Connect (OSTI)

    Wood, Richard Thomas; Upadhyaya, Belle R.

    2011-01-01

    Under Project Prometheus, the National Aeronautics and Space Administration (NASA) investigated deep space missions that would utilize space nuclear power systems (SNPSs) to provide energy for propulsion and spacecraft power. The initial study involved the Jupiter Icy Moons Orbiter (JIMO), which was proposed to conduct in-depth studies of three Jovian moons. Current radioisotope thermoelectric generator (RTG) and solar power systems cannot meet expected mission power demands, which include propulsion, scientific instrument packages, and communications. Historically, RTGs have provided long-lived, highly reliable, low-power-level systems. Solar power systems can provide much greater levels of power, but power density levels decrease dramatically at {approx} 1.5 astronomical units (AU) and beyond. Alternatively, an SNPS can supply high-sustained power for space applications that is both reliable and mass efficient. Terrestrial nuclear reactors employ varying degrees of human control and decision-making for operations and benefit from periodic human interaction for maintenance. In contrast, the control system of an SNPS must be able to provide continuous operatio for the mission duration with limited immediate human interaction and no opportunity for hardware maintenance or sensor calibration. In effect, the SNPS control system must be able to independently operate the power plant while maintaining power production even when subject to off-normal events and component failure. This capability is critical because it will not be possible to rely upon continuous, immediate human interaction for control due to communications delays and periods of planetary occlusion. In addition, uncertainties, rare events, and component degradation combine with the aforementioned inaccessibility and unattended operation to pose unique challenges that an SNPS control system must accommodate. Autonomous control is needed to address these challenges and optimize the reactor control design.

  14. Assessment of a satellite power system and six alternative technologies

    SciTech Connect (OSTI)

    Wolsko, T.; Whitfield, R.; Samsa, M.; Habegger, L.S.; Levine, E.; Tanzman, E.

    1981-04-01

    The satellite power system is assessed in comparison to six alternative technologies. The alternatives are: central-station terrestrial photovoltaic systems, conventional coal-fired power plants, coal-gasification/combined-cycle power plants, light water reactor power plants, liquid-metal fast-breeder reactors, and fusion. The comparison is made regarding issues of cost and performance, health and safety, environmental effects, resources, socio-economic factors, and insitutional issues. The criteria for selecting the issues and the alternative technologies are given, and the methodology of the comparison is discussed. Brief descriptions of each of the technologies considered are included. (LEW)

  15. Overview of NASA Lewis Research Center free-piston Stirling engine technology activities applicable to space power systems

    SciTech Connect (OSTI)

    Slaby, J.G.

    1987-01-01

    An overview is presented of the National Aeronautics and Space Administration (NASA) Lewis Research Center free-piston Stirling engine activities directed toward space-power application. One of the major elements of the program is the development of advanced power conversion concepts of which the Stirling cycle is a viable candidate. Under this program the research findings of the 25 kWe opposed-piston Space Power Demonstrator Engine (SPDE) are presented. Included in the SPDE discussion are initial differences between predicted and experimental power outputs and power output influenced by variations in regenerators. Projections are made for future space-power requirements over the next few decades. A cursory comparison is presented showing the mass benefits that a Stirling system has over a Brayton system for the same peak temperature and output power.

  16. Power Systems Analysis ELEN4511 Spring 2013

    E-Print Network [OSTI]

    Lavaei, Javad

    , New Hampshire, Rhode Island, Vermont, New York, and New Jersey in the United States. Over 30 million (OSI) stack. For this reason, the power grid has been unable to take advantage of this new of electricity on Tuesday, November 9, 1965, affecting parts of Ontario in Canada and Connecticut, Massachusetts

  17. Power conditioning system for energy sources

    DOE Patents [OSTI]

    Mazumder, Sudip K. (Chicago, IL); Burra, Rajni K. (Chicago, IL); Acharya, Kaustuva (Chicago, IL)

    2008-05-13

    Apparatus for conditioning power generated by an energy source includes an inverter for converting a DC input voltage from the energy source to a square wave AC output voltage, and a converter for converting the AC output voltage from the inverter to a sine wave AC output voltage.

  18. High power laser downhole cutting tools and systems

    DOE Patents [OSTI]

    Zediker, Mark S; Rinzler, Charles C; Faircloth, Brian O; Koblick, Yeshaya; Moxley, Joel F

    2015-01-20

    Downhole cutting systems, devices and methods for utilizing 10 kW or more laser energy transmitted deep into the earth with the suppression of associated nonlinear phenomena. Systems and devices for the laser cutting operations within a borehole in the earth. These systems and devices can deliver high power laser energy down a deep borehole, while maintaining the high power to perform cutting operations in such boreholes deep within the earth.

  19. High power laser workover and completion tools and systems

    DOE Patents [OSTI]

    Zediker, Mark S; Rinzler, Charles C; Faircloth, Brian O; Koblick, Yeshaya; Moxley, Joel F

    2014-10-28

    Workover and completion systems, devices and methods for utilizing 10 kW or more laser energy transmitted deep into the earth with the suppression of associated nonlinear phenomena. Systems and devices for the laser workover and completion of a borehole in the earth. These systems and devices can deliver high power laser energy down a deep borehole, while maintaining the high power to perform laser workover and completion operations in such boreholes deep within the earth.

  20. 2/21/2014 Powered byWind: World's Tiniest Windmills | Stories byWilliams http://storiesbywilliams.com/2014/02/20/the-future-is-here-tiny-windmills-to-power-cell-phones/ 1/3

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    2/21/2014 Powered byWind: World's Tiniest Windmills | Stories byWilliams http://storiesbywilliams.com/2014/02/20/the-future-is-here-tiny-windmills-to-power-cell-phones/ 1/3 Stories by Williams classic sci Legacies: Preludes Search... Powered by Wind: World's Tiniest Windmills by storiesbywilliams on February 20