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


1

Innovative Distributed Power Grid Interconnection and Control Systems: Final Report, December 11, 2000 - August 30, 2005  

SciTech Connect (OSTI)

The contract goal was to further advance distributed generation in the marketplace by making installations more cost-effective and compatible with existing systems. This was achieved by developing innovative grid interconnection and control systems.

DePodesta, K.; Birlingmair, D.; West, R.

2006-03-01T23:59:59.000Z

2

New Report Characterizes Existing Offshore Wind Grid Interconnection...  

Office of Environmental Management (EM)

New Report Characterizes Existing Offshore Wind Grid Interconnection Capabilities New Report Characterizes Existing Offshore Wind Grid Interconnection Capabilities September 3,...

3

Renewable Generation and Interconnection to the Electrical Grid...  

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

Generation and Interconnection to the Electrical Grid in Southern California Renewable Generation and Interconnection to the Electrical Grid in Southern California Presentation...

4

National Offshore Wind Energy Grid Interconnection Study  

SciTech Connect (OSTI)

The National Offshore Wind Energy Grid Interconnection Study (NOWEGIS) considers the availability and potential impacts of interconnecting large amounts of offshore wind energy into the transmission system of the lower 48 contiguous United States. A total of 54GW of offshore wind was assumed to be the target for the analyses conducted. A variety of issues are considered including: the anticipated staging of offshore wind; the offshore wind resource availability; offshore wind energy power production profiles; offshore wind variability; present and potential technologies for collection and delivery of offshore wind energy to the onshore grid; potential impacts to existing utility systems most likely to receive large amounts of offshore wind; and regulatory influences on offshore wind development. The technologies considered the reliability of various high-voltage ac (HVAC) and high-voltage dc (HVDC) technology options and configurations. The utility system impacts of GW-scale integration of offshore wind are considered from an operational steady-state perspective and from a regional and national production cost perspective.

Daniel, John P. [ABB Inc; Liu, Shu [ABB Inc; Ibanez, Eduardo [National Renewable Energy Laboratory; Pennock, Ken [AWS Truepower; Reed, Greg [University of Pittsburgh; Hanes, Spencer [Duke Energy

2014-07-30T23:59:59.000Z

5

A Guidebook on Grid Interconnection and Islanded Operation of Mini-Grid Power Systems Up to 200 kW  

E-Print Network [OSTI]

Indian Institute of Technology Roorkee, “Electro-MechanicalGrid Connection Equipment and Technology – Best Practice andand renewable energy technologies; provides training for

Greacen, Chris

2014-01-01T23:59:59.000Z

6

LCL Filter Design and Performance Analysis for Grid Interconnected Systems , M.Godoy Simes*  

E-Print Network [OSTI]

, solar, or even a hydrogen-based fuel cell to the utility grid. A LCL filter is often used for non- galvanic isolated inverters, suitable for wind energy or photovoltaic applications. Two

Simões, Marcelo Godoy

7

A Guidebook on Grid Interconnection and Islanded Operation of Mini-Grid Power Systems Up to 200 kW  

E-Print Network [OSTI]

systems, such as ponds for micro-hydro systems or stockpilescontinued to rely on the micro-hydro system. This madeif the water flow to a micro-hydro generator is interrupted.

Greacen, Chris

2014-01-01T23:59:59.000Z

8

A Guidebook on Grid Interconnection and Islanded Operation of Mini-Grid Power Systems Up to 200 kW  

E-Print Network [OSTI]

photovoltaic (PV), wind power, and even diesel generators.are also used in some wind power systems, in which thewas solar, wind, and hydroelectric power, with a significant

Greacen, Chris

2014-01-01T23:59:59.000Z

9

The interconnection of photovoltaic power systems with the utility grid: An overview for utility engineers  

SciTech Connect (OSTI)

Utility-interactive (UI) photovoltaic power systems mounted on residences and commercial buildings are likely to become a small, but important source of electric generation in the next century. This is a new concept in utility power production--a change from large-scale central generation to small-scale dispersed generation. As such, it requires a re-examination of many existing standards and practices to enable the technology to develop and emerge into the marketplace. Much work has been done over the last 20 years to identify and solve the potential problems associated with dispersed power generation systems. This report gives an overview of these issues and also provides a guide to applicable codes, standards and other related documents. The main conclusion that can be drawn from this work is that there are no major technical barriers to the implementation of dispersed PV generating systems. While more technical research is needed in some specific areas, the remaining barriers are fundamentally price and policy.

Wills, R.H. [Solar Design Associates, Harvard, MA (United States)

1994-06-01T23:59:59.000Z

10

Risk analysis via heterogeneous models of SCADA interconnecting Power Grids and Telco Networks  

E-Print Network [OSTI]

for an electrical power distribution grid. The modeling techniques we discuss aim at providing a probabilistic demonstrate their applicability by modeling and #12;analyzing an actual SCADA system for an electrical powerRisk analysis via heterogeneous models of SCADA interconnecting Power Grids and Telco Networks A

Tronci, Enrico

11

IEEE Smart Grid Series of Standards IEEE 2030 (Interoperability) and IEEE 1547 (Interconnection) Status: Preprint  

SciTech Connect (OSTI)

The IEEE American National Standards smart grid publications and standards development projects IEEE 2030, which addresses smart grid interoperability, and IEEE 1547TM, which addresses distributed resources interconnection with the grid, have made substantial progress since 2009. The IEEE 2030TM and 1547 standards series focus on systems-level aspects and cover many of the technical integration issues involved in a mature smart grid. The status and highlights of these two IEEE series of standards, which are sponsored by IEEE Standards Coordinating Committee 21 (SCC21), are provided in this paper.

Basso, T.; DeBlasio, R.

2012-04-01T23:59:59.000Z

12

Renewable Systems Interconnection: Executive Summary  

SciTech Connect (OSTI)

The U.S. Department of Energy launched the Renewable Systems Interconnection (RSI) study in 2007 to address the challenges to high penetrations of distributed renewable energy technologies. The RSI study consists of 14 additional reports.

Kroposki, B.; Margolis, R.; Kuswa, G.; Torres, J.; Bower, W.; Key, T.; Ton, D.

2008-02-01T23:59:59.000Z

13

Renewable Generation and Interconnection to the Electrical Grid in Southern California  

Broader source: Energy.gov [DOE]

Presentation covers the topic of "Renewable Generation and Interconnection to the Electrical Grid in Southern California," given at the Spring 2010 Federal Utility Partnership Working Group (FUPWG) meeting in Providence, Rhode Island.

14

Updating Interconnection Screens for PV System Integration  

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

Abraham Ellis, Roger Hill Sandia National Laboratories Tom Key, Kristen Nicole, Jeff Smith Electric Power Research Institute Updating Interconnection Screens for PV System...

15

Developing Generic Dynamic Models for the 2030 Eastern Interconnection Grid  

SciTech Connect (OSTI)

The Eastern Interconnection Planning Collaborative (EIPC) has built three major power flow cases for the 2030 Eastern Interconnection (EI) based on various levels of energy/environmental policy conditions, technology advances, and load growth. Using the power flow cases, this report documents the process of developing the generic 2030 dynamic models using typical dynamic parameters. The constructed model was validated indirectly using the synchronized phasor measurements by removing the wind generation temporarily.

Kou, Gefei [ORNL; Hadley, Stanton W [ORNL; Markham, Penn N [ORNL; Liu, Yilu [ORNL

2013-12-01T23:59:59.000Z

16

Grid Interconnection and Performance Testing Procedures for Vehicle-To-Grid (V2G) Power Electronics: Preprint  

SciTech Connect (OSTI)

Bidirectional power electronics can add vehicle-to-grid (V2G) capability in a plug-in vehicle, which then allows the vehicle to operate as a distributed resource (DR). The uniqueness of the battery-based V2G power electronics requires a test procedure that will not only maintain IEEE interconnection standards, but can also evaluate the electrical performance of the vehicle working as a DR. The objective of this paper is to discuss a recently published NREL technical report that provides interim test procedures for V2G vehicles for their integration into the electrical distribution systems and for their performance in terms of continuous output power, efficiency, and losses. Additionally, some other test procedures are discussed that are applicable to a V2G vehicle that desires to provide power reserve functions. A few sample test results are provided based on testing of prototype V2G vehicles at NREL.

Kramer, W.; Chakraborty, S.; Kroposki, B.; Hoke, A.; Martin, G.; Markel, T.

2012-03-01T23:59:59.000Z

17

Interconnecting PV on New York City's Secondary Network Distribution System  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) has teamed with cities across the country through the Solar America Cities (SAC) partnership program to help reduce barriers and accelerate implementation of solar energy. The New York City SAC team is a partnership between the City University of New York (CUNY), the New York City Mayor s Office of Long-term Planning and Sustainability, and the New York City Economic Development Corporation (NYCEDC).The New York City SAC team is working with DOE s National Renewable Energy Laboratory (NREL) and Con Edison, the local utility, to develop a roadmap for photovoltaic (PV) installations in the five boroughs. The city set a goal to increase its installed PV capacity from1.1 MW in 2005 to 8.1 MW by 2015 (the maximum allowed in 2005). A key barrier to reaching this goal, however, is the complexity of the interconnection process with the local utility. Unique challenges are associated with connecting distributed PV systems to secondary network distribution systems (simplified to ���¢��������networks���¢������� in this report). Although most areas of the country use simpler radial distribution systems to distribute electricity, larger metropolitan areas like New York City typically use networks to increase reliability in large load centers. Unlike the radial distribution system, where each customer receives power through a single line, a network uses a grid of interconnected lines to deliver power to each customer through several parallel circuits and sources. This redundancy improves reliability, but it also requires more complicated coordination and protection schemes that can be disrupted by energy exported from distributed PV systems. Currently, Con Edison studies each potential PV system in New York City to evaluate the system s impact on the network, but this is time consuming for utility engineers and may delay the customer s project or add cost for larger installations. City leaders would like to streamline this process to facilitate faster, simpler, and less expensive distributed PV system interconnections. To assess ways to improve the interconnection process, NREL conducted a four-part study with support from DOE. The NREL team then compiled the final reports from each study into this report. In Section 1���¢��������PV Deployment Analysis for New York City���¢��������we analyze the technical potential for rooftop PV systems in the city. This analysis evaluates potential PV power production in ten Con Edison networks of various locations and building densities (ranging from high density apartments to lower density single family homes). Next, we compare the potential power production to network loads to determine where and when PV generation is most likely to exceed network load and disrupt network protection schemes. The results of this analysis may assist Con Edison in evaluating future PV interconnection applications and in planning future network protection system upgrades. This analysis may also assist other utilities interconnecting PV systems to networks by defining a method for assessing the technical potential of PV in the network and its impact on network loads. Section 2���¢��������A Briefing for Policy Makers on Connecting PV to a Network Grid���¢��������presents an overview intended for nontechnical stakeholders. This section describes the issues associated with interconnecting PV systems to networks, along with possible solutions. Section 3���¢��������Technical Review of Concerns and Solutions to PV Interconnection in New Y

K. Anderson; M. Coddington; K. Burman; S. Hayter; B. Kroposki; and A. Watson

2009-11-30T23:59:59.000Z

18

STABILITY ANALYSIS OF INTERCONNECTED POWER SYSTEMS COUPLED WITH MARKET DYNAMICS  

E-Print Network [OSTI]

STABILITY ANALYSIS OF INTERCONNECTED POWER SYSTEMS COUPLED WITH MARKET DYNAMICS F.L. Alvarado1 J of generators and network interconnections. This paper examines questions of stability in such coupled systems

19

Photovoltaic Systems Interconnected onto Secondary Network Distribution Systems – Success Stories  

Broader source: Energy.gov [DOE]

This report examines six case studies of photovoltaic (PV) systems integrated into secondary network systems. The six PV systems were chosen for evaluation because they are interconnected to secondary network systems located in four major Solar America Cities.

20

Interconnected hydro-thermal systems Models, methods, and applications  

E-Print Network [OSTI]

Interconnected hydro-thermal systems Models, methods, and applications Magnus Hindsberger Kgs. Lyngby 2003 IMM-PHD-2003-112 Interconnected hydro-thermalsystems #12;Technical University of Denmark 45882673 reception@imm.dtu.dk www.imm.dtu.dk IMM-PHD-2003-112 ISSN 0909-3192 #12;Interconnected hydro

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


21

Impact of Wind Turbine Penetration on the Dynamic Performance of Interconnected Power Systems  

E-Print Network [OSTI]

to stability problems caused by wind power integration. In the grid impact studies of wind power integrationImpact of Wind Turbine Penetration on the Dynamic Performance of Interconnected Power Systems M. J connected to a higher voltage level, their impact is becoming more widespread. The European Wind Energy

Pota, Himanshu Roy

22

Interconnection Guidelines (Rhode Island)  

Broader source: Energy.gov [DOE]

Rhode Island enacted legislation (HB 6222) in June 2011 to standardize the application process for the interconnection of customer-sited renewable-energy systems to the state’s distribution grid....

23

Updating Interconnection Screens for PV System Integration  

SciTech Connect (OSTI)

This white paper evaluates the origins and usefulness of the capacity penetration screen, offer short-term solutions which could effectively allow fast-track interconnection to many PV system applications, and considers longer-term solutions for increasing PV deployment levels in a safe and reliable manner while reducing or eliminating the emphasis on the penetration screen. Short-term and longer-term alternatives approaches are offered as examples; however, specific modifications to screening procedures should be discussed with stakeholders and must ultimately be adopted by state and federal regulatory bodies.

Coddington, M.; Mather, B.; Kroposki, B.; Lynn, K.; Razon, A.; Ellis, A.; Hill, R.; Key, T.; Nicole, K.; Smith, J.

2012-02-01T23:59:59.000Z

24

GROWDERS Demonstration of Grid Connected Electricity Systems...  

Open Energy Info (EERE)

GROWDERS Demonstration of Grid Connected Electricity Systems (Smart Grid Project) (Spain) Jump to: navigation, search Project Name GROWDERS Demonstration of Grid Connected...

25

Interconnection Resources  

Broader source: Energy.gov [DOE]

Interconnection is the technical procedures and legal requirements surrounding energy customers' ability to connect their small-scale renewable energy projects with the electricity grid. The...

26

Nuclear-renewable hybrid energy systems: Opportunities, interconnections, and needs  

SciTech Connect (OSTI)

As the U.S. energy system evolves, the amount of electricity from variable-generation sources is likely to increase, which could result in additional times when electricity demand is lower than available production. Thus, purveyors of technologies that traditionally have provided base-load electricity—such as nuclear power plants—can explore new operating procedures to deal with the associated market signals. Concurrently, innovations in nuclear reactor design coupled with sophisticated control systems now allow for more complex apportionment of heat within an integrated system such as one linked to energy-intensive chemical processes. This paper explores one opportunity – nuclear-renewable hybrid energy systems. These are defined as integrated facilities comprised of nuclear reactors, renewable energy generation, and industrial processes that can simultaneously address the need for grid flexibility, greenhouse gas emission reductions, and optimal use of investment capital. Six aspects of interaction (interconnections) between elements of nuclear-renewable hybrid energy systems are identified: Thermal, electrical, chemical, hydrogen, mechanical, and information. Additionally, system-level aspects affect selection, design, and operation of this hybrid system type. Throughout the paper, gaps and research needs are identified to promote further exploration of the topic.

Mark F. Ruth; Owen R. Zinaman; Mark Antkowiak; Richard D. Boardman; Robert S. Cherry; Morgan D. Bazilian

2014-02-01T23:59:59.000Z

27

Interconnecting PV on New York City's Secondary Network Distribution System  

SciTech Connect (OSTI)

This study describes technical assistance provided by NREL to help New York City and Con Edison improve the interconnection of distributed PV systems on a secondary network distribution system.

Anderson, K.; Coddington, M.; Burman, K.; Hayter, S.; Kroposki, B.; Watson, A.

2009-12-01T23:59:59.000Z

28

Optimal Planning and Operation of Smart Grids with Electric Vehicle Interconnection  

E-Print Network [OSTI]

Optimal Planning and Operation of Smart Grids with ElectricOptimal Planning and Operation of Smart Grids with Electric

Stadler, Michael

2012-01-01T23:59:59.000Z

29

Benchmarking Grid Information Systems Laurence Field1  

E-Print Network [OSTI]

Benchmarking Grid Information Systems Laurence Field1 and Rizos Sakellariou2 1 CERN, Geneva. Grid information systems play a central role in today's pro- duction Grid infrastructures, enabling the discovery of a range of in- formation about the Grid services that exist in an infrastructure. As the number

Sakellariou, Rizos

30

Optimal Planning and Operation of Smart Grids with Electric Vehicle Interconnection  

E-Print Network [OSTI]

Planning and Operation of Smart Grids with Electric VehiclePlanning and Operation of Smart Grids with Electric Vehicleenergy costs at the smart grid or commercial building due to

Stadler, Michael

2012-01-01T23:59:59.000Z

31

Perspectives on Real-Time Grid Operating Technologies to Manage Reliability in the Western Interconnection  

E-Print Network [OSTI]

Real-Time Grid Operating Technologies to Manage ReliabilityEto Environmental Energy Technologies Division October 2013Real-Time Grid Operating Technologies to Manage Reliability

Whitley, Eric

2014-01-01T23:59:59.000Z

32

Interconnection of Direct-drive Wind Turbines Using A Series Connected DC Grid.  

E-Print Network [OSTI]

??This thesis presents the concept of a "distributed HVDC converter" for offshore wind farms. The proposed converter topology allows series interconnection of wind turbines obviating… (more)

Veilleux, Etienne

2010-01-01T23:59:59.000Z

33

Learn More About Interconnections | Department of Energy  

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

About Interconnections Learn More About Interconnections EASTERN INTERCONNECTION North America is comprised of two major and three minor alternating current (AC) power grids or...

34

Comparing Germany's and California's Interconnection Processes for PV Systems (White Paper)  

SciTech Connect (OSTI)

Establishing interconnection to the grid is a recognized barrier to the deployment of distributed energy generation. This report compares interconnection processes for photovoltaic projects in California and Germany. This report summarizes the steps of the interconnection process for developers and utilities, the average length of time utilities take to process applications, and paperwork required of project developers. Based on a review of the available literature, this report finds that while the interconnection procedures and timelines are similar in California and Germany, differences in the legal and regulatory frameworks are substantial.

Tweedie, A.; Doris, E.

2011-07-01T23:59:59.000Z

35

Reliability assessment of autonomous power systems incorporating HVDC interconnection links  

SciTech Connect (OSTI)

The objective of this paper is to present an improved computational method for the overall reliability assessment of autonomous power systems that may or may not contain HVdc interconnection links. This is a hybrid method based on a Monte-Carlo simulation sequential approach which incorporates an analytical approach for the reliability modeling of the HVdc transmission links. The developed models and techniques have been implemented into a computer program that can be used to simulate the operational practices and characteristics of the overall system under study efficiently and realistically. A set of reliability indices are calculated for each load-point of interest and the entire system while a set of additional indices is calculated for quantifying the reliability performance of the interconnection links under the specified operating requirements. The analysis of a practical system is also included for a number of studies representing its various operating and design characteristics.

Dialynas, E.N.; Koskolos, N.C. [National Technical Univ., Athens (Greece). Dept. of Electrical and Computer Engineering] [National Technical Univ., Athens (Greece). Dept. of Electrical and Computer Engineering; Agoris, D. [Public Power Corp., Athens (Greece)] [Public Power Corp., Athens (Greece)

1996-01-01T23:59:59.000Z

36

H C26 Performance Analysis of Optica1 Interconnection Systems Inch-ing  

E-Print Network [OSTI]

Analysis of Optica1 Interconnection Systems Inch- ing T ransmitter T emperature Dependence .è ¯ � , � � ì

Choi, Woo-Young

37

Interconnection Standards  

Broader source: Energy.gov [DOE]

Virginia has two interconnection standards: one for net-metered systems and one for systems that are not net-metered.

38

Cyber-Physical Systems Security for Smart Grid  

E-Print Network [OSTI]

Cyber-Physical Systems Security for Smart Grid Future Grid Initiative White Paper Power Systems-Physical Systems Security for Smart Grid Prepared for the Project "The Future Grid to Enable Sustainable Energy as one of nine white papers in the project "The Future Grid to Enable Sustainable Energy Systems

39

Efficient Bulk Data Replication for the Earth System Grid  

E-Print Network [OSTI]

for the Earth System Grid Alex Sim 1 , Dan Gunter 1 , VijayaUSA Abstract The Earth System Grid (ESG) community faces theIntroduction The Earth System Grid (ESG) [1] community faces

Sim, Alex

2010-01-01T23:59:59.000Z

40

Interconnection Standards  

Broader source: Energy.gov [DOE]

In February 2004, the Wisconsin Public Service Commission adopted interconnection standards for distributed generation (DG) systems up to 15 megawatts (MW) in capacity. All investor-owned...

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


41

Interconnection Standards  

Broader source: Energy.gov [DOE]

In September 2007, the Washington Utilities and Transportation Commission (UTC) adopted interconnection standards for distributed generation (DG) systems up to 20 megawatts (MW) in capacity. The...

42

Cyber-Physical Systems Security for Smart Grid  

E-Print Network [OSTI]

Cyber-Physical Systems Security for Smart Grid Future Grid Initiative White Paper Power Systems-Physical Systems Security for Smart Grid Prepared for the Project "The Future Grid to Enable Sustainable Energy Acknowledgements This white paper was developed as one of nine white papers in the project "The Future Grid

43

Quantum Dissipative Systems and Feedback Control Design by Interconnection  

E-Print Network [OSTI]

The purpose of this paper is to extend J.C. Willems' theory of dissipative systems to the quantum domain. This general theory, which combines perspectives from the quantum physics and control engineering communities, provides useful methods for analysis and design of dissipative quantum systems. We describe the interaction of the plant and a class of exosystems in general quantum feedback network terms. Our results include an infinitesimal characterization of the dissipation property, which generalizes the well-known Positive Real and Bounded Real Lemmas, and is used to study some properties of quantum dissipative systems. We also show how to formulate control design problems using quantum network models, which implements Willems' `control by interconnection' for open quantum systems. This control design formulation includes, for example, standard problems of stabilization, regulation, and robust control.

Matthew R. James; John Gough

2009-05-07T23:59:59.000Z

44

Beta Test Plan for Advanced Inverters Interconnecting Distributed Resources with Electric Power Systems  

SciTech Connect (OSTI)

This document provides a preliminary (beta) test plan for grid interconnection systems of advanced inverter-based DERs. It follows the format and methodology/approach established by IEEE Std 1547.1, while incorporating: 1. Upgraded tests for responses to abnormal voltage and frequency, and also including ride-through. 2. A newly developed test for voltage regulation, including dynamic response testing. 3. Modified tests for unintentional islanding, open phase, and harmonics to include testing with the advanced voltage and frequency response functions enabled. Two advanced inverters, one single-phase and one three-phase, were tested under the beta test plan. These tests confirmed the importance of including tests for inverter dynamic response, which varies widely from one inverter to the next.

Hoke, A.; Chakraborty, S.; Basso, T.; Coddington, M.

2014-01-01T23:59:59.000Z

45

V-125: Cisco Connected Grid Network Management System Multiple...  

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

5: Cisco Connected Grid Network Management System Multiple Vulnerabilities V-125: Cisco Connected Grid Network Management System Multiple Vulnerabilities April 3, 2013 - 1:44am...

46

New York Independent System Operator, Smart Grid RFI: Addressing...  

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

York Independent System Operator, Smart Grid RFI: Addressing Policy and Logistical Challenges. New York Independent System Operator, Smart Grid RFI: Addressing Policy and...

47

2014 Smart Grid System Report (August 2014) | Department of Energy  

Energy Savers [EERE]

14 Smart Grid System Report (August 2014) 2014 Smart Grid System Report (August 2014) The Department of Energy has developed this biennial report to Congress in compliance with...

48

GridBank: A Grid Accounting Services Architecture (GASA) for Distributed Systems Sharing and Integration  

E-Print Network [OSTI]

GridBank: A Grid Accounting Services Architecture (GASA) for Distributed Systems Sharing Australia Nedlands, Western Australia, 6009 barmouta@csse.uwa.edu.au Rajkumar Buyya Grid Computing and Distributed Systems (GRIDS) Lab Dept. of Computer Science and Software Engineering The University of Melbourne

Buyya, Rajkumar

49

EL Program: Smart Grid Program Manager: David Wollman, Smart Grid and Cyber-Physical Systems  

E-Print Network [OSTI]

EL Program: Smart Grid Program Manager: David Wollman, Smart Grid and Cyber-Physical Systems Program Office, Associate Program Manager: Dean Prochaska, Smart Grid and Cyber- Physical Systems Program [updated August 23, 2013] Summary: This program develops and demonstrates smart grid measurement science

50

Smart Grid: Transforming the Electric System  

SciTech Connect (OSTI)

This paper introduces smart grid concepts, summarizes the status of current smart grid related efforts, and explains smart grid priorities.

Widergren, Steven E.

2010-04-13T23:59:59.000Z

51

Survey and Taxonomy of Grid Resource Management Systems Chaitanya Kandagatla  

E-Print Network [OSTI]

Survey and Taxonomy of Grid Resource Management Systems Chaitanya Kandagatla University of Texas, Austin Abstract The resource management system is the central component of a grid system. This paper management architectures of popular contemporary grid systems. 1. Introduction Grid systems are inter

Browne, James C.

52

Control Design for Interconnected Power Systems with OLTCs via Robust Decentralized Control  

E-Print Network [OSTI]

Control Design for Interconnected Power Systems with OLTCs via Robust Decentralized Control the problem of designing a decentralized control of interconnected power systems, with OLTC and SVCs, under-scale Markov jump parameter systems framework. In this paper, unlike other control schemes, OLTC transformers

Pota, Himanshu Roy

53

Optimal Planning and Operation of Smart Grids with Electric Vehicle Interconnection  

E-Print Network [OSTI]

GWh] combined heat and power (CHP) and other distributenand combined heat and power (CHP) systems with and withoutrenewable energy source or CHP system at the building could

Stadler, Michael

2012-01-01T23:59:59.000Z

54

Sandia National Laboratories: Grid System Planning for Wind:...  

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

Wind: Wind Generator Modeling A typical wind power plant may contain hundreds of wind turbines that are interconnected through a collector system. Though the impact of...

55

Interconnection Standards  

Broader source: Energy.gov [DOE]

Oregon has three separate interconnection standards: one for net-metered systems, one for small generator facilities (non-net metered systems) and one for large generator facilities (non-net...

56

Interconnection Standards  

Broader source: Energy.gov [DOE]

Vermont has adopted separate interconnection standards for net-metered energy systems that are 150 kW or less, and for all other distributed-generation (DG) systems.

57

Interconnecting PV on NYC's Secondary Network Distribution System  

Broader source: Energy.gov [DOE]

To assess ways to improve the interconnection process, NREL conducted a four-part study with support from DOE. The NREL team then compiled the final reports from each study into this report.

58

Design of a decentralized detection filter for a class of interconnected LTI systems  

E-Print Network [OSTI]

In this thesis, we consider the problem of designing a decentralized detection filter for a class of homogeneous interconnected systems. In this class of systems, all subsystems have an identical structure. A fault in a subsystem propagates via...

Shankar, Shamanth

2001-01-01T23:59:59.000Z

59

Interconnection Guidelines  

Broader source: Energy.gov [DOE]

Nebraska enacted legislation in May 2009 [http://nebraskalegislature.gov/FloorDocs/101/PDF/Final/LB436.pdf (LB 436)], establishing general rules for interconnecting and net metering systems that...

60

Interconnection Standards  

Broader source: Energy.gov [DOE]

In March 2008, the Florida Public Service Commission (PSC) adopted interconnection rules for renewable-energy systems up to two megawatts (MW) in capacity. The PSC rules apply only to the state's...

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


61

Interconnection Guidelines  

Broader source: Energy.gov [DOE]

Wyoming's net-metering law includes basic interconnection requirements for systems up to 25 kilowatts (kW) in capacity that generate electricity using solar, wind, hydropower or biomass resources....

62

Interconnection Standards  

Broader source: Energy.gov [DOE]

Hawaii has established simplified interconnection rules for small renewables and separate rules for all other distributed generation (DG). For inverter-based systems up to 10 kilowatts (kW) in...

63

Photovoltaic Systems Interconnected onto Network Distribution Systems--Success Stories  

SciTech Connect (OSTI)

This report examines six case studies of photovoltaic systems integrated into secondary network systems in four major U.S. Solar America cities.

Coddington, M.; Kroposki, B.; Basso, T.; Lynn, K.; Sammon, D.; Vaziri, M.; Yohn, T.

2009-04-01T23:59:59.000Z

64

Sustainable Energy Solutions Task 1.0: Networked Monitoring and Control of Small Interconnected Wind Energy Systems  

SciTech Connect (OSTI)

EXECUTIVE SUMARRY This report presents accomplishments, results, and future work for one task of five in the Wichita State University Sustainable Energy Solutions Project: To develop a scale model laboratory distribution system for research into questions that arise from networked control and monitoring of low-wind energy systems connected to the AC distribution system. The lab models developed under this task are located in the Electric Power Quality Lab in the Engineering Research Building on the Wichita State University campus. The lab system consists of four parts: 1. A doubly-fed induction generator 2. A wind turbine emulator 3. A solar photovoltaic emulator, with battery energy storage 4. Distribution transformers, lines, and other components, and wireless and wired communications and control These lab elements will be interconnected and will function together to form a complete testbed for distributed resource monitoring and control strategies and smart grid applications testing. Development of the lab system will continue beyond this project.

Janet.twomey@wichita.edu

2010-04-30T23:59:59.000Z

65

Seasonal Movements and Spatial Distributions of Common Carp in an Interconnected Glacial Lake System in Eastern South Dakota  

E-Print Network [OSTI]

0 Seasonal Movements and Spatial Distributions of Common Carp in an Interconnected Glacial Lake in an Interconnected Glacial Lake System in Eastern South Dakota This thesis is approved as a creditable Distributions of Common Carp in an Interconnected Glacial Lake System in Eastern South Dakota Matthew J.

66

Smart Grid - Transforming Power System Operations  

SciTech Connect (OSTI)

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

Widergren, Steven E.; Kirkham, Harold

2010-04-28T23:59:59.000Z

67

Value of a Smart Grid System | Department of Energy  

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

Value of a Smart Grid System Value of a Smart Grid System A broad range of industries have embraced technology in their quest to improve productivity, reduce costs and improve...

68

Load frequency control of interconnected power systems with system constraints  

E-Print Network [OSTI]

Responses D. Generating Unit Characteristics E. The State Variable Representation of the Dynamic F. LFC System Data . 1. Power System Data 2. Controller Gains 3. The Reheat-turbine Prime-Mover Data Model . 6 7 8 10 11 12 15 15 18 23 23 25... 56 25 LFC system response with VSS control. Area 1 fails to respond for a load change of APnr ? 0, 01 p. u. 57 26 LFC system response with conventional controL Area 1 fails to respond for the same load disturbance as in Fig. 26. . . 58 27...

Choudhury, Md Ershadul H

1993-01-01T23:59:59.000Z

69

Updating Technical Screens for PV Interconnection: Preprint  

SciTech Connect (OSTI)

Solar photovoltaics (PV) is the dominant type of distributed generation (DG) technology interconnected to electric distribution systems in the United States, and deployment of PV systems continues to increase rapidly. Considering the rapid growth and widespread deployment of PV systems in United States electric distribution grids, it is important that interconnection procedures be as streamlined as possible to avoid unnecessary interconnection studies, costs, and delays. Because many PV interconnection applications involve high penetration scenarios, the process needs to allow for a sufficiently rigorous technical evaluation to identify and address possible system impacts. Existing interconnection procedures are designed to balance the need for efficiency and technical rigor for all DG. However, there is an implicit expectation that those procedures will be updated over time in order to remain relevant with respect to evolving standards, technology, and practical experience. Modifications to interconnection screens and procedures must focus on maintaining or improving safety and reliability, as well as accurately allocating costs and improving expediency of the interconnection process. This paper evaluates the origins and usefulness of the capacity penetration screen, offers potential short-term solutions which could effectively allow fast-track interconnection to many PV system applications, and considers longer-term solutions for increasing PV deployment levels in a safe and reliable manner while reducing or eliminating the emphasis on the penetration screen.

Coddington, M.; Ellis, A.; Lynn, K.; Razon, A.; Key, T.; Kroposki, B.; Mather, B.; Hill, R.; Nicole, K.; Smith, J.

2012-08-01T23:59:59.000Z

70

Electric Grid State Estimators for Distribution Systems with Microgrids  

E-Print Network [OSTI]

46556 Emails: {jhuang6,vgupta2,huang}@nd.edu Abstract--In the development of smart grid, state] into the distribution systems of the power grid. Such integration complicates the operation of distribution systemsElectric Grid State Estimators for Distribution Systems with Microgrids Jing Huang, Vijay Gupta

Gupta, Vijay

71

Grid Cell Spatial Tuning Reduced Following Systemic Muscarinic Receptor Blockade  

E-Print Network [OSTI]

Grid Cell Spatial Tuning Reduced Following Systemic Muscarinic Receptor Blockade Ehren L. Newman,* Jason R. Climer, and Michael E. Hasselmo ABSTRACT: Grid cells of the medial entorhinal cortex exhibit system. This grid pattern has been hypothesized to serve as a spatial coordinate system for navigation

Hasselmo, Michael

72

Evaluation of a Functional Interconnect System for SOFC's  

SciTech Connect (OSTI)

The overall objective of this project was to validate the concept and application of a functional interconnect, based on a ferritic stainless steel, for a solid oxide fuel cell through manufacturing trials, laboratory testing, and field experience. The materials of construction and their surfaces were to be optimized for the particular service conditions and include low-cost ferritic stainless steels, novel postprocess treatments, and third-party coatings. This work aimed to optimize specific aspects of substrate alloy chemistry and to study the effects of long-term exposures on resistive oxide film structure and chemistry, interaction with applied surface coatings, and effectiveness of novel surface treatments.

Matthew Bender; James Rakowski

2010-12-31T23:59:59.000Z

73

Performance of a Dynamically Controlled Inverter in a Photovoltaic System Interconnected with a Secondary Network Distribution System  

SciTech Connect (OSTI)

In 2008, a 300 kW{sub peak} photovoltaic (PV) system was installed on the rooftop of the Colorado Convention Center (CCC). The installation was unique for the electric utility, Xcel Energy, as it had not previously permitted a PV system to be interconnected on a building served by the local secondary network distribution system (network). The PV system was installed with several provisions; one to prevent reverse power flow, another called a dynamically controlled inverter (DCI), that curtails the output of the PV inverters to maintain an amount of load supplied by Xcel Energy at the CCC. The DCI system utilizes current transformers (CTs) to sense power flow to insure that a minimum threshold is maintained from Xcel Energy through the network transformers. The inverters are set to track the load on each of the three phases and curtail power from the PV system when the generated PV system current reaches 95% of the current on any phase. This is achieved by the DCI, which gathers inputs from current transformers measuring the current from the PV array, Xcel, and the spot network load. Preventing reverse power flow is a critical technical requirement for the spot network which serve this part of the CCC. The PV system was designed with the expectation that the DCI system would not curtail the PV system, as the expected minimum load consumption was historically higher than the designed PV system size. However, the DCI system has operated many days during the course of a year, and the performance has been excellent. The DCI system at the CCC was installed as a secondary measure to insure that a minimum level of power flows to the CCC from the Xcel Energy network. While this DCI system was intended for localized control, the system could also reduce output percent if an external smart grid control signal was employed. This paper specifically focuses on the performance of the innovative design at this installation; however, the DCI system could also be used for new s- art grid-enabled distribution systems where renewables power contributions at certain conditions or times may need to be curtailed.

Coddington, M. H.; Kroposki, B. D.; Basso, T.; Berger, D.; Crowell, K.; Hayes, J.

2011-01-01T23:59:59.000Z

74

Mobile Interfaces to Computational, Data, and Service Grid Systems  

E-Print Network [OSTI]

Mobile Interfaces to Computational, Data, and Service Grid Systems Mauro Migliardi Muthucumaru, data, and service Grids. Then it describes our preliminary efforts to enhance computational and service approaches the problem of enhancing Grid computers with mobile access and we describe how the InviNet project

Manitoba, University of

75

Grid Portal System Based on GPIR , Geoffrey Fox2  

E-Print Network [OSTI]

Grid Portal System Based on GPIR Fang Juan1 , Geoffrey Fox2 , Marlon Pierce2 1 College of Computer Science, Beijing University of Technology, 100022 Beijing, China 2 Community Grids Lab, Indiana University Bloomington, IN 47404, USA fangjuan@bjut.edu.cn ; {gcf, mpierce}@indiana.edu Abstract Grid portal

76

Application of smart grid in photovoltaic power systems, ForskEL...  

Open Energy Info (EERE)

Application of smart grid in photovoltaic power systems, ForskEL (Smart Grid Project) Jump to: navigation, search Project Name Application of smart grid in photovoltaic power...

77

Automated Grid Disruption Response System: Robust Adaptive Topology Control (RATC)  

SciTech Connect (OSTI)

GENI Project: The RATC research team is using topology control as a mechanism to improve system operations and manage disruptions within the electric grid. The grid is subject to interruption from cascading faults caused by extreme operating conditions, malicious external attacks, and intermittent electricity generation from renewable energy sources. The RATC system is capable of detecting, classifying, and responding to grid disturbances by reconfiguring the grid in order to maintain economically efficient operations while guaranteeing reliability. The RATC system would help prevent future power outages, which account for roughly $80 billion in losses for businesses and consumers each year. Minimizing the time it takes for the grid to respond to expensive interruptions will also make it easier to integrate intermittent renewable energy sources into the grid.

None

2012-03-01T23:59:59.000Z

78

System Impacts from Interconnection of Distributed Resources: Current Status and Identification of Needs for Further Development  

SciTech Connect (OSTI)

This report documents and evaluates system impacts from the interconnection of distributed resources to transmission and distribution systems, including a focus on renewable distributed resource technologies. The report also identifies system impact-resolution approaches and actions, including extensions of existing approaches. Lastly, the report documents the current challenges and examines what is needed to gain a clearer understanding of what to pursue to better avoid or address system impact issues.

Basso, T. S.

2009-01-01T23:59:59.000Z

79

HVDC Control Strategies to Improve Transient Stability in Interconnected Power Systems  

E-Print Network [OSTI]

HVDC Control Strategies to Improve Transient Stability in Interconnected Power Systems J. Hazra Dpt of Li`ege, Belgium, dernst@ulg.ac.be Abstract--This paper presents three HVDC modulation strate- gies flow settings through the HVDC-links. The proposed techniques are tested on the IEEE 24-Bus reliability

Boyer, Edmond

80

Value of a Smart Grid System  

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

2 - Section 1: Smart Grid Opportunities Remarkable things happen when economic forces and new technology converge. Consider how the the Internet -- combined with new, affordable...

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


81

American Institute of Aeronautics and Astronautics A Turbomachinery Gridding System  

E-Print Network [OSTI]

American Institute of Aeronautics and Astronautics 1 A Turbomachinery Gridding System Michael AC, Springfield, OH, 45504 and Mark G. Turner§ University of Cincinnati, Cincinnati, OH, 45219 A Turbomachinery turbomachinery simulations. There are several unique aspects of this gridding system: 1.) it starts

Cincinnati, University of

82

Interconnection Panel  

Broader source: Energy.gov [DOE]

Presentation—given at at the Fall 2012 Federal Utility Partnership Working Group (FUPWG) meeting—discusses the interconnection panel, including an overview of the generation interconnection process (GIP), and interconnection agreements and their terms.

83

Viscosity Solutions of Systems of PDEs with Interconnected Obstacles and Switching Problem  

SciTech Connect (OSTI)

This paper deals with existence and uniqueness of a solution in viscosity sense, for a system of m variational partial differential inequalities with inter-connected obstacles. A particular case is the Hamilton-Jacobi-Bellmann system of the Markovian stochastic optimal m-states switching problem. The switching cost functions depend on (t,x). The main tool is the notion of systems of reflected backward stochastic differential equations with oblique reflection.

Hamadene, S., E-mail: hamadene@univ-lemans.fr; Morlais, M. A., E-mail: Marie_Amelie.Morlais@univ-lemans.fr [Universite du Maine, LMM (France)

2013-04-15T23:59:59.000Z

84

Phase 1 - Evaluation of a Functional Interconnect System for Solid Oxide Fuel Cells  

SciTech Connect (OSTI)

This project is focused on evaluating the suitability of materials and complex multi-materials systems for use as solid oxide fuel cell interconnects. ATI Allegheny Ludlum has generated promising results for interconnect materials which incorporate modified surfaces. Methods for producing these surfaces include cladding, which permits the use of novel materials, and modifications via unique thermomechanical processing, which allows for the modification of materials chemistry. The University of Pittsburgh is assisting in this effort by providing use of their in-place facilities for dual atmosphere testing and ASR measurements, along with substantial work to characterize post-exposure specimens. Carnegie Mellon is testing interconnects for chromia scale spallation resistance using macro-scale and nano-scale indentation tests. Chromia spallation can increase electrical resistance to unacceptable levels and interconnect systems must be developed that will not experience spallation within 40,000 hours at operating temperatures. Spallation is one of three interconnect failure mechanisms, the others being excessive growth of the chromia scale (increasing electrical resistance) and scale evaporation (which can poison the cathode). The goal of indentation fracture testing at Carnegie Mellon is to accelerate the evaluation of new interconnect systems (by inducing spalls at after short exposure times) and to use fracture mechanics to understand mechanisms leading to premature interconnect failure by spallation. Tests include bare alloys from ATI and coated systems from DOE Laboratories and industrial partners, using ATI alloy substrates. West Virginia University is working towards developing a cost-effective material for use as a contact material in the cathode chamber of the SOFC. Currently materials such as platinum are well suited for this purpose, but are cost-prohibitive. For the solid-oxide fuel cell to become a commercial reality it is imperative that lower cost components be developed. Based on the results obtained to date, it appears that sterling silver could be an inexpensive, dependable candidate for use as a contacting material in the cathode chamber of the solid-oxide fuel cell. Although data regarding pure silver samples show a lower rate of thickness reduction, the much lower cost of sterling silver makes it an attractive alternative for use in SOFC operation.

James M. Rakowski

2006-09-30T23:59:59.000Z

85

Interconnection Standards  

Broader source: Energy.gov [DOE]

New York first adopted uniform interconnection standards in 1999 (see history below). The Standard Interconnection Requirements (SIR) have subsequently been amended several times since, most...

86

Interconnection Standards  

Broader source: Energy.gov [DOE]

In November 2005, the Indiana Utility Regulatory Commission (IURC) approved rules governing the interconnection of distributed generation (DG). Indiana's interconnection rules require the state's...

87

A lightweight inverter for off-grid and grid-connected systems  

SciTech Connect (OSTI)

This paper presents a novel bi-directional power processing topology particularly suitable as an inverter for both grid and off-grid alternative energy systems. All semiconductor devices are soft-switched, thereby allowing higher switching frequencies, improving efficiency, and reducing electromagnetic interference (EMI). The topology may utilize a small, light-weight, and inexpensive high-frequency transformer. Experimental results of a 1 kW bi-directional dc-dc converter are presented.

Barone, F. [Univ. of New South Wales, Sydney, New South Wales (Australia). Centre for Photovoltaic Devices and Systems

1994-12-31T23:59:59.000Z

88

Transmission Grid Integration  

Broader source: Energy.gov [DOE]

The levels of solar energy penetration envisioned by the DOE SunShot Initiative must be interconnected effectively onto the transmission grid. This interconnection requires an in-depth...

89

CyberPhysical System Security for the Electric Power Grid  

E-Print Network [OSTI]

systems that may be vulnerable to security attacks is discussed in this paper as are control loop successful cyber attacks. Estimating feasible attack impact requires an evaluation of the grid's dependency of the cyber­physical relationships within the smart grid and a specific review of possible attack vectors

Manimaran, Govindarasu

90

CCHP System with Interconnecting Cooling and Heating Network  

E-Print Network [OSTI]

The consistency between building heating load, cooling load and power load are analyzed in this paper. The problem of energy waste and low equipment usage in a traditional CCHP (combined cooling, heating and power) system with generated electricity...

Fu, L.; Geng, K.; Zheng, Z.; Jiang, Y.

2006-01-01T23:59:59.000Z

91

Grid tied PV system energy smoothing.  

SciTech Connect (OSTI)

Grid-tied PV energy smoothing was implemented by using a valve regulated lead-acid (VRLA) battery as a temporary energy storage device to both charge and discharge as required to smooth the inverter energy output from the PV array. Inverter output was controlled by the average solar irradiance over the previous 1h time interval. On a clear day the solar irradiance power curve is offset by about 1h, while on a variable cloudy day the inverter output power curve will be smoothed based on the average solar irradiance. Test results demonstrate that this smoothing algorithm works very well. Battery state of charge was more difficult to manage because of the variable system inefficiencies. Testing continued for 30-days and established consistent operational performance for extended periods of time under a wide variety of resource conditions. Both battery technologies from Exide (Absolyte) and East Penn (Advanced Valve Regulated Lead-Acid) proved to cycle well at a partial state of charge over the time interval tested.

Barrett, Keith Phillip; Gonzalez, Sigifredo; Hund, Thomas D.

2010-06-01T23:59:59.000Z

92

Grid-tied PV battery systems.  

SciTech Connect (OSTI)

Grid tied PV energy smoothing was implemented by using a valve regulated lead-acid (VRLA) battery as a temporary energy storage device to both charge and discharge as required to smooth the inverter energy output from the PV array. Inverter output was controlled by the average solar irradiance over the previous 1h time interval. On a clear day the solar irradiance power curve is offset by about 1h, while on a variable cloudy day the inverter output power curve will be smoothed based on the average solar irradiance. Test results demonstrate that this smoothing algorithm works very well. Battery state of charge was more difficult to manage because of the variable system inefficiencies. Testing continued for 30-days and established consistent operational performance for extended periods of time under a wide variety of resource conditions. Both battery technologies from Exide (Absolyte) and East Penn (ALABC Advanced) proved to cycle well at a Partial state of charge over the time interval tested.

Barrett, Keith Phillip; Gonzalez, Sigifredo; Hund, Thomas D.

2010-09-01T23:59:59.000Z

93

Communication Systems for Grid Integration of Renewable Energy Resources  

E-Print Network [OSTI]

There is growing interest in renewable energy around the world. Since most renewable sources are intermittent in nature, it is a challenging task to integrate renewable energy resources into the power grid infrastructure. In this grid integration, communication systems are crucial technologies, which enable the accommodation of distributed renewable energy generation and play extremely important role in monitoring, operating, and protecting both renewable energy generators and power systems. In this paper, we review some communication technologies available for grid integration of renewable energy resources. Then, we present the communication systems used in a real renewable energy project, Bear Mountain Wind Farm (BMW) in British Columbia, Canada. In addition, we present the communication systems used in Photovoltaic Power Systems (PPS). Finally, we outline some research challenges and possible solutions about the communication systems for grid integration of renewable energy resources.

Yu, F Richard; Xiao, Weidong; Choudhury, Paul

2011-01-01T23:59:59.000Z

94

Grid Information Security Functional Requirement - Fulfilling Information Security of a Smart Grid System  

E-Print Network [OSTI]

This paper describes the background of smart information infrastructure and the needs for smart grid information security. It introduces the conceptual analysis to the methodology with the application of hermeneutic circle and information security functional requirement identification. Information security for the grid market cover matters includes automation and communications industry that affects the operation of electric power systems and the functioning of the utilities that manage them and its awareness of this information infrastructure has become critical to the reliability of the power system. Community benefits from of cost savings, flexibility and deployment along with the establishment of wireless communications. However, concern revolves around the security protections for easily accessible devices such as the smart meter and the related communications hardware. On the other hand, the changing points between traditional versus smart grid networking trend and the information security importance on...

Ling, Amy Poh Ai; 10.5121/ijgca.2011.2201

2011-01-01T23:59:59.000Z

95

THE PUSH TOWARD GRID REGIONALIZATION IN OPEN ACCESS TRANSMISSION SYSTEMS  

E-Print Network [OSTI]

THE PUSH TOWARD GRID REGIONALIZATION IN OPEN ACCESS TRANSMISSION SYSTEMS ProfessorGeorge Gross Universityof Illinois atUrbana-Champaign USA E-mail:gross@uiuc.edu ExtendedSummary Keywords:RTO, ISO

Gross, George

96

An Advanced Platform for Development and Evaluation of Grid Interconnection Systems Using Hardware-in-the-Loop: Part III -- Grid Interconnection System Evaluator  

Office of Scientific and Technical Information (OSTI)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: Crystal structureComposite JC-118794Argonne NationalAUTHORSAlgalUsing

97

An Advanced Platform for Development and Evaluation of Grid Interconnection Systems Using Hardware-in-the-Loop: Part III -- Grid Interconnection System Evaluator: Preprint  

Office of Scientific and Technical Information (OSTI)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: Crystal structureComposite JC-118794Argonne NationalAUTHORSAlgalUsingusing

98

Viscosity solutions of systems of PDEs with interconnected obstacles and Multi modes switching problems  

E-Print Network [OSTI]

This paper deals with existence and uniqueness, in viscosity sense, of a solution for a system of m variational partial differential inequalities with inter-connected obstacles. A particular case of this system is the deterministic version of the Verification Theorem of the Markovian optimal m-states switching problem. The switching cost functions are arbitrary. This problem is connected with the valuation of a power plant in the energy market. The main tool is the notion of systems of reflected BSDEs with oblique reflection.

Hamadčne, Said

2011-01-01T23:59:59.000Z

99

Geometric effects modelling for the PJM interconnection system. Part 1; Earth surface potentials computation  

SciTech Connect (OSTI)

This paper describes an ionospheric source current model and development of an earth resistivity model used to calculate geomagnetic induced currents (GIC) on the Pennsylvania-New Jersey-Maryland Interconnection (PJM). Ionospheric current is modelled as a gaussian distributed current sheet above the earth. Geological details are included by dividing the PJM service area into 11 different earth resistivity regions. The resulting earth surface potential (ESP) at each power system substation is then calculated. A companion paper describes how this ESP is applied to the power system model to calculate the geomagnetic induced current in the power system equipment and facilities.

Towle, J.N. (Diversified EM, Seattle, WA (US)); Prabhakara, F.S. (Power Technologies, Inc., Schenectady, NY (US)); Ponder, J.Z. (PJM Interconnection, Norristown, PA (US))

1992-07-01T23:59:59.000Z

100

Design, analysis and simulation study of a Scalable all-Optical Interconnection Network (SCOPIN) for multiprocessing systems  

E-Print Network [OSTI]

and flexible all-optical single-hop interconnection network, called Scalable Optical Interconnection Network (SCOPIN)....

Okorafor, Ekpe Apia

2002-01-01T23:59:59.000Z

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


101

Interconnection Standards  

Broader source: Energy.gov [DOE]

Different rules govern the interconnection of distributed generation facilities in Iowa, depending on whether or not the interconnection is with a utility whose rates are regulated by the Iowa...

102

Geomagnetic effects modelling for the PJM interconnection system. Part 2; Geomagnetically induced current study results  

SciTech Connect (OSTI)

The development of a computer program for calculation of geomagnetically induced current (GIC) and a GIC power system model for the Pennsylvania-New Jersey-Maryland Interconnection is described in this paper. Results of GIC for three different ionospheric source configurations are shown. A new method is presented for estimating GIC in unmetered parts of the system based on a few measurements and precalculated geomagnetic disturbance conditions. The use of an interactive, menu driven GIC program to study mitigation concepts including the effects of line outages, line series capacitors, transformer neutral blocking resistors and transformer neutral blocking capacitors is also presented.

Prabhakara, F.S.; Hannett, L.N.; Ringlee, R.J. (Power Technologies, Inc., Schenectady, NY (United States)); Ponder, J.Z. (PJM Interconnection, Norristown, PA (US))

1992-05-01T23:59:59.000Z

103

Perforation patterned electrical interconnects  

DOE Patents [OSTI]

This disclosure describes systems and methods for increasing the usable surface area of electrical contacts within a device, such as a thin film solid state device, through the implementation of electrically conductive interconnects. Embodiments described herein include the use of a plurality of electrically conductive interconnects that penetrate through a top contact layer, through one or more multiple layers, and into a bottom contact layer. The plurality of conductive interconnects may form horizontal and vertical cross-sectional patterns. The use of lasers to form the plurality of electrically conductive interconnects from reflowed layer material further aids in the manufacturing process of a device.

Frey, Jonathan

2014-01-28T23:59:59.000Z

104

Control Algorithms for Grid-Scale Battery Energy Storage Systems  

E-Print Network [OSTI]

Control Algorithms for Grid-Scale Battery Energy Storage Systems This report describes development-connected battery energy storage system. The report was submitted by HNEI to the U.S. Department of Energy Office.2: Energy Storage Systems August 2014 HAWAI`I NATURAL ENERGY INSTITUTE School of Ocean & Earth Science

105

A Taxonomy of Scientific Workflow Systems for Grid Computing Jia Yu and Rajkumar Buyya*  

E-Print Network [OSTI]

on major functions and architectural styles of Grid workflow systems. In Section 3, we map the proposed1 A Taxonomy of Scientific Workflow Systems for Grid Computing Jia Yu and Rajkumar Buyya* Grid Computing and Distributed Systems (GRIDS) Laboratory Department of Computer Science and Software Engineering

Melbourne, University of

106

A G LO BA L P OW E R TECHNOLO GIES CO M PA N Y SolarTieTM Grid Interconnection Solution  

E-Print Network [OSTI]

G f· Shipments to date sufficient to power 10 GW of wind power SWind Plant Interconnection Solutions's Wind-Generated Electricity "Powered by AMSC®" Wind Turbine Designs, Controls & Converters · Relied upon utilized at more than 70 wind plants worldwide · Shipments to date sufficient to allow interconnection 4 p

Homes, Christopher C.

107

High Penetration, Grid Connected Photovoltaic Technology Codes and Standards: Preprint  

SciTech Connect (OSTI)

This paper reports the interim status in identifying and reviewing photovoltaic (PV) codes and standards (C&S) and related electrical activities for grid-connected, high-penetration PV systems with a focus on U.S. electric utility distribution grid interconnection.

Basso, T. S.

2008-05-01T23:59:59.000Z

108

Utility-Interconnected Photovoltaic Systems: Evaluating the Rationale for the Utility-Accessible External Disconnect Switch  

SciTech Connect (OSTI)

The utility-accessible alternating current (AC) external disconnect switch (EDS) for distributed generators, including photovoltaic (PV) systems, is a hardware feature that allows a utility?s employees to manually disconnect a customer-owned generator from the electricity grid. This paper examines the utility-accessible EDS debate in the context of utility-interactive PV systems for residential and small commercial installations. It also evaluates the rationale for EDS requirements.

Coddington, M.; Margolis, R.M.; Aabakken, J.

2008-01-01T23:59:59.000Z

109

1 Vehicle-to-grid systems: ancillary services and communications  

E-Print Network [OSTI]

have set long-term plans to electrify their transportation system and manufacture electric vehicles-enabled electric vehicles will be on the road in USA. The expected trend in the automotive market share for EVs electricity storage unit in most power grids are the pumped storage systems [6]. 2010 2011 2012 2013 2014 2015

Huang, Jianwei

110

Interconnection Standards  

Broader source: Energy.gov [DOE]

In December 2007, the Connecticut Department of Public Utility Control (DPUC) now called the Public Utilities Regulatory Authority (PURA) approved new interconnection guidelines for distributed...

111

Interconnection Standards  

Broader source: Energy.gov [DOE]

In July 2010, the Montana Public Service Commission (PSC) adopted interconnection rules, effective August 13, 2010. These rules apply to all electric utilities under the PSC's jurisdiction,...

112

Interconnection Standards  

Broader source: Energy.gov [DOE]

The Michigan Public Service Commission (PSC) first adopted interconnection standards for distributed generation (DG) in September 2003. The original standards provided for 5 levels of...

113

Interconnection Standards  

Broader source: Energy.gov [DOE]

In December 2005, the Colorado Public Utilities Commission (PUC) adopted standards for net metering and interconnection, as required by Amendment 37, a renewable-energy ballot initiative approved...

114

Interconnection Standards  

Broader source: Energy.gov [DOE]

In April 2008, Kentucky enacted legislation which required the Kentucky Public Service Commission (PSC) to develop interconnection and net metering guidelines for all retail electric suppliers...

115

Interconnection Standards  

Broader source: Energy.gov [DOE]

In July 2006 the District of Columbia Public Service Commission (PSC) initiated a formal inquiry into the development of uniform interconnection procedures for on-site distributed generation...

116

Interconnection Standards  

Broader source: Energy.gov [DOE]

New Jersey's interconnection standards apply statewide to all electric distribution utilities, but not to the small number of municipal utilities and electric cooperatives in the state. The rules,...

117

Interconnection Guidelines  

Broader source: Energy.gov [DOE]

'''''Note: In June 2007, the Arizona Corporation Commission (ACC) initiated a rulemaking process to establish statewide interconnection standards for distributed generation (DG). This proceeding...

118

Interconnection Guidelines  

Broader source: Energy.gov [DOE]

The South Carolina Public Service Commission (PSC) adopted simplified interconnection guidelines for small distributed generation (DG) in December 2006. These guidelines address renewable-energy...

119

Interconnection Standards  

Broader source: Energy.gov [DOE]

The Pennsylvania Public Utilities Commission was required to adopt interconnection standards and net-metering rules by the Alternative Energy Portfolio Standards Act of 2004.The PUC subsequently...

120

Interconnection Standards  

Broader source: Energy.gov [DOE]

The North Carolina Utilities Commission (NCUC) adopted comprehensive interconnection standards for distributed generation in June 2008. The NCUC standards, which are similar to the Federal Energy...

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


121

Interconnection Standards  

Broader source: Energy.gov [DOE]

The Maine Public Utility Commission (PUC) adopted interconnection procedures in January 2010. These rules apply to all transmission and distribution utilities operating in the state and apply to...

122

Interconnection Standards  

Broader source: Energy.gov [DOE]

Note: Legislation enacted in August 2012 required the Massachusetts Department of Public Utilities (DPU) to develop an enforceable, standard interconnection timeline for distributed generation...

123

Initial Studies on Actionable Control for Improving Small Signal Stability in Interconnected Power Systems  

SciTech Connect (OSTI)

Power consumption and demand continues to grow around the world. As the electric power grid continues to be put under more stress, the conditions of instability are more likely to occur. One cause of such instabilities is intearea oscillations, such as the oscillation that resulted in the August 10, 1996 blackout of the WECC. This paper explores different potential operations of different devices on the power system to improve the damping of these interarea oscillations using two different simulation models

Tuffner, Francis K.; Huang, Zhenyu; Zhou, Ning; Guttromson, Ross T.; Jayantilal, Avnaesh

2010-06-14T23:59:59.000Z

124

POWER GRID DYNAMICS: ENHANCING POWER SYSTEM OPERATION THROUGH PRONY ANALYSIS  

SciTech Connect (OSTI)

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.

Ray, C.; Huang, Z.

2007-01-01T23:59:59.000Z

125

Observers for Interconnected Nonlinear and Linear Systems Havard Fjr Grip a, Ali Saberi a, and Tor A. Johansen b  

E-Print Network [OSTI]

Observers for Interconnected Nonlinear and Linear Systems H°avard Fjćr Grip a, Ali Saberi a (Esfandiari and Khalil, 1987; Saberi and Sannuti, 1990), and non-left-invertible systems (e.g., Gauthier, Hammouri, and Othman, 1992; Bornard and Hammouri, 2002; Grip and Saberi, 2010); the exploitation

Johansen, Tor Arne

126

Building a Global Federation System for Climate Change Research: The Earth System Grid Center for Enabling  

E-Print Network [OSTI]

Building a Global Federation System for Climate Change Research: The Earth System Grid Center for Enabling Technologies (ESG-CET) The Earth System Grid Center for Enabling Technologies Team: R Ananthakrishnan1 , D E Bernholdt7,9 , S Bharathi8 , D Brown5 , M Chen7 , A L Chervenak8 , L Cinquini5 , R Drach3

Chervenak, Ann

127

A Guidebook on Grid Interconnection and Islanded Operation of Mini-Grid Power Systems Up to 200 kW  

E-Print Network [OSTI]

Dr. James Cale, National Renewable Energy Laboratory (USA)Coddington, National Renewable Energy Laboratory (USA) Dr.Energy Services Delivery/Renewable Energy for Rural Economic

Greacen, Chris

2014-01-01T23:59:59.000Z

128

A Guidebook on Grid Interconnection and Islanded Operation of Mini-Grid Power Systems Up to 200 kW  

E-Print Network [OSTI]

are waived for solar projects that do not sell power to thethat convert DC power to AC. Since solar PV modules produce

Greacen, Chris

2014-01-01T23:59:59.000Z

129

A Guidebook on Grid Interconnection and Islanded Operation of Mini-Grid Power Systems Up to 200 kW  

E-Print Network [OSTI]

Induction generators for small hydro schemes,” PowerManuals/Guidelines for Small Hydro Development, Sep. 19,re.org/assets/no57.pdf Small Hydro Action for the Promotion

Greacen, Chris

2014-01-01T23:59:59.000Z

130

A Guidebook on Grid Interconnection and Islanded Operation of Mini-Grid Power Systems Up to 200 kW  

E-Print Network [OSTI]

among developing countries in renewable energy development,developing countries, regulators have established renewable/distributed energydeveloping countries, regulators have established renewable/distributed energy

Greacen, Chris

2014-01-01T23:59:59.000Z

131

Microgrid V2G Charging Station Interconnection Testing (Presentation)  

SciTech Connect (OSTI)

This presentation by Mike Simpson of the National Renewable Energy Laboratory (NREL) describes NREL's microgrid vehicle-to-grid charging station interconnection testing.

Simpson, M.

2013-07-01T23:59:59.000Z

132

Interconnection of Grid Systems for Maui and O`ahu Counties  

E-Print Network [OSTI]

February 2014 HAWAI`I NATURAL ENERGY INSTITUTE School of Ocean & Earth Science & Technology ­ University Consulting Submitted by Hawai`i Natural Energy Institute School of Ocean and Earth Science and Technology was submitted by HNEI to the U.S. Department of Energy Office of Electricity Delivery and Energy Reliability

133

A High Frequency Isolated Current-fed Bidirectional DC/AC Converter For Grid-Tied Energy Storage System  

E-Print Network [OSTI]

for Grid-tied Energy Storage System XhaFreh qu, K.J. uneng,grid-tied energy storage systems (ESS) will be voltage to aGrid-tied energy storage system (ESS) is increasingly used

King Jet, TSENG

2013-01-01T23:59:59.000Z

134

Micro-fluidic interconnect  

DOE Patents [OSTI]

An apparatus for simultaneously aligning and interconnecting microfluidic ports is presented. Such interconnections are required to utilize microfluidic devices fabricated in Micro-Electromechanical-Systems (MEMS) technologies, that have multiple fluidic access ports (e.g. 100 micron diameter) within a small footprint, (e.g. 3 mm.times.6 mm). Fanout of the small ports of a microfluidic device to a larger diameter (e.g. 500 microns) facilitates packaging and interconnection of the microfluidic device to printed wiring boards, electronics packages, fluidic manifolds etc.

Okandan, Murat (Albuquerque, NM); Galambos, Paul C. (Albuquerque, NM); Benavides, Gilbert L. (Los Ranchos, NM); Hetherington, Dale L. (Albuquerque, NM)

2006-02-28T23:59:59.000Z

135

Interconnection Guidelines  

Broader source: Energy.gov [DOE]

Kansas adopted the Net Metering and Easy Connection Act in May 2009 (see K.S.A. 66-1263 through 66-1271), establishing interconnection guidelines and net metering for customer-owned generators. Net...

136

Interconnection Standards  

Broader source: Energy.gov [DOE]

In 2006, West Virginia stakeholders came together to consider net metering, interconnection as required by the Federal Energy Policy Act (2005) and agreed upon a "Statement of Consensus Among...

137

Interconnection Standards  

Broader source: Energy.gov [DOE]

South Dakota’s interconnection standards for distributed generation, adopted by the state Public Utilities Commission (PUC) in May 2009, apply to customers of investor-owned utilities.* The rules...

138

Interconnection Standards  

Broader source: Energy.gov [DOE]

Interconnection in New Mexico is governed by New Mexico Public Regulation Commission (PRC) Rule 568 and Rule 569. These rules, adopted in July 2008, revised and clarified the state's existing rules...

139

Interconnection Standards  

Broader source: Energy.gov [DOE]

In December 2003, the Nevada Public Utilities Commission (PUC) adopted interconnection standards for customers of NV Energy (formerly Nevada Power and Sierra Pacific Power) with on-site generation...

140

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

SciTech Connect (OSTI)

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.

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

2015-01-01T23:59:59.000Z

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


141

Controlling of grid connected photovoltaic lighting system with fuzzy logic  

SciTech Connect (OSTI)

In this study, DC electrical energy produced by photovoltaic panels is converted to AC electrical energy and an indoor area is illuminated using this energy. System is controlled by fuzzy logic algorithm controller designed with 16 rules. Energy is supplied from accumulator which is charged by photovoltaic panels if its energy would be sufficient otherwise it is supplied from grid. During the 1-week usage period at the semester time, 1.968 kWh energy is used from grid but designed system used 0.542 kWh energy from photovoltaic panels at the experiments. Energy saving is determined by calculations and measurements for one education year period (9 months) 70.848 kWh. (author)

Saglam, Safak; Ekren, Nazmi; Erdal, Hasan [Technical Education Faculty, Marmara University, Istanbul 34722 (Turkey)

2010-02-15T23:59:59.000Z

142

Smart Grid Publications Archive | Department of Energy  

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

Smart Grid Publications Archive Smart Grid Publications Archive 2010 Smart Grid System Report, February 2012 2009 Smart Grid System Report, July 2009 The Smart Grid Stakeholder...

143

2014 Smart Grid System Report Now Available | 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 Delicious RankCombustion |Energyon ArmedWaste and Materials2014 Chief Freedom of Information20144 Smart Grid System

144

Security and privacy in demand response systems in smart grid.  

E-Print Network [OSTI]

??Demand response programs are used in smart grid to improve stability of the electric grid and to reduce consumption of electricity and costs during peak… (more)

Paranjpe, Mithila

2011-01-01T23:59:59.000Z

145

Environmental Regulation Impacts on Eastern Interconnection Performance  

SciTech Connect (OSTI)

In the United States, recent environmental regulations will likely result in the removal of nearly 30 GW of oil and coal-fired generation from the power grid, mostly in the Eastern Interconnection (EI). The effects of this transition on voltage stability and transmission line flows have previously not been studied from a system-wide perspective. This report discusses the results of power flow studies designed to simulate the evolution of the EI over the next few years as traditional generation sources are replaced with environmentally friendlier ones such as natural gas and wind.

Markham, Penn N [ORNL; Liu, Yilu [ORNL; Young II, Marcus Aaron [ORNL

2013-07-01T23:59:59.000Z

146

Intelligent Residential Air-Conditioning System with Smart-Grid Functionality  

E-Print Network [OSTI]

1 Intelligent Residential Air-Conditioning System with Smart-Grid Functionality Auswin George residential air-conditioning (A/C) system controller that has smart grid functionality. The qualifier, conditional on anticipated retail energy prices. The term "smart- grid functionality" means that retail energy

Tesfatsion, Leigh

147

Secure Communication and Authentication Against Off-line Dictionary Attacks in Smart Grid Systems  

E-Print Network [OSTI]

Secure Communication and Authentication Against Off-line Dictionary Attacks in Smart Grid Systems This paper studies the security requirements for remote authentication and communication in smart grid to smart grid systems. For example, in order to unlock the credentials stored in tamper

Wang, Yongge

148

Data Management and Analysis for the Earth System Grid  

SciTech Connect (OSTI)

The international climate community is expected to generate hundreds of petabytes of simulation data within the next five to seven years. This data must be accessed and analyzed by thousands of analysts worldwide in order to provide accurate and timely estimates of the likely impact of climate change on physical, biological, and human systems. Climate change is thus not only a scientific challenge of the first order but also a major technological challenge. To address this technological challenge, the Earth System Grid Center for Enabling Technologies (ESG-CET) has been established within the U.S. Department of Energy's Scientific Discovery through Advanced Computing (SciDAC)-2 program, with support from the offices of Advanced Scientific Computing Research and Biological and Environmental Research. ESG-CET's mission is to provide climate researchers worldwide with access to the data, information, models, analysis tools, and computational capabilities required to make sense of enormous climate simulation datasets. Its specific goals are to (1) make data more useful to climate researchers by developing Grid technology that enhances data usability; (2) meet specific distributed database, data access, and data movement needs of national and international climate projects; (3) provide a universal and secure web-based data access portal for broad multi-model data collections; and (4) provide a wide-range of Grid-enabled climate data analysis tools and diagnostic methods to international climate centers and U.S. government agencies. Building on the successes of the previous Earth System Grid (ESG) project, which has enabled thousands of researchers to access tens of terabytes of data from a small number of ESG sites, ESG-CET is working to integrate a far larger number of distributed data providers, high-bandwidth wide-area networks, and remote computers in a highly collaborative problem-solving environment.

Williams, D N; Ananthakrishnan, R; Bernholdt, D; Bharathi, S; Brown, D; Chen, M; Chervenak, A L; Cinquini, L; Drach, R; Foster, I T; Fox, P; Hankin, S; Henson, V; Jones, P; Middleton, D E; Schwidder, J; Schweitzer, R; Schuler, R; Shoshani, A; Siebenlist, F; Sim, A; Strand, W G; Wilhelmi, N; Su, M

2008-06-19T23:59:59.000Z

149

Time Stamp Attack on Wide Area Monitoring System in Smart Grid  

E-Print Network [OSTI]

Security becomes an extremely important issue in smart grid. To maintain the steady operation for smart power grid, massive measurement devices must be allocated widely among the power grid. Previous studies are focused on false data injection attack to the smart grid system. In practice, false data injection attack is not easy to implement, since it is not easy to hack the power grid data communication system. In this paper, we demonstrate that a novel time stamp attack is a practical and dangerous attack scheme for smart grid. Since most of measurement devices are equipped with global positioning system (GPS) to provide the time information of measurements, it is highly probable to attack the measurement system by spoofing the GPS. By employing the real measurement data in North American Power Grid, simulation results demonstrate the effectiveness of the time stamp attack on smart grid.

Zhang, Zhenghao; Li, Husheng; Pei, Changxing

2011-01-01T23:59:59.000Z

150

Efficient Bulk Data Replication for the Earth System Grid  

SciTech Connect (OSTI)

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

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

2010-03-10T23:59:59.000Z

151

Storage Size Determination for Grid-Connected Photovoltaic Systems  

E-Print Network [OSTI]

In this paper, we study the problem of determining the size of battery storage used in grid-connected photovoltaic (PV) systems. In our setting, electricity is generated from PV and is used to supply the demand from loads. Excess electricity generated from the PV can be stored in a battery to be used later on, and electricity must be purchased from the electric grid if the PV generation and battery discharging cannot meet the demand. The objective is to minimize the electricity purchase from the electric grid while at the same time choosing an appropriate battery size. More specifically, we want to find a unique critical value (denoted as $E_{max}^c$) of the battery size such that the cost of electricity purchase remains the same if the battery size is larger than or equal to $E_{max}^c$, and the cost is strictly larger if the battery size is smaller than $E_{max}^c$. We propose an upper bound on $E_{max}^c$, and show that the upper bound is achievable for certain scenarios. For the case with ideal PV generat...

Ru, Yu; Martinez, Sonia

2011-01-01T23:59:59.000Z

152

RETHINKING THE FUTURE GRID: INTEGRATED NUCLEAR-RENEWABLE ENERGY SYSTEMS  

SciTech Connect (OSTI)

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.

S.M. Bragg-Sitton; R. Boardman

2014-12-01T23:59:59.000Z

153

Domino of the Smart Grid: An Empirical Study of System Behaviors in the Interdependent Network  

E-Print Network [OSTI]

critical metrics to indicate the possibility of the potential fault spreading in the smart grid. Our work1 Domino of the Smart Grid: An Empirical Study of System Behaviors in the Interdependent Network and Limin Sun, Member, IEEE Abstract--The smart grid features a unique network architec- ture that consists

Wang, Wenye

154

Topic 7 : Smart Grid Privacy and Security 1Networking and Distributed Systems  

E-Print Network [OSTI]

Topic 7 : Smart Grid Privacy and Security 1Networking and Distributed Systems Department Tech UniversityCommunications and Control in Smart Grid 2 · Smart Meter Privacy · Concerns · Possible Solutions · Smart Grid Security · Load Altering Attacks · False Data Injection Attacks · Impact

Mohsenian-Rad, Hamed

155

Multi-Agent Systems and Control, Intelligent Robotics, and Cybernetics. Power Electronics, Renewable Energy, and Smart Grid.  

E-Print Network [OSTI]

. Power Electronics, Renewable Energy, and Smart Grid. Computer Science and Engineering. Embedded Systems

Wu, Yih-Min

156

Solar Energy Grid Integration Systems -- Energy Storage (SEGIS-ES).  

SciTech Connect (OSTI)

This paper describes the concept for augmenting the SEGIS Program (an industry-led effort to greatly enhance the utility of distributed PV systems) with energy storage in residential and small commercial applications (SEGIS-ES). The goal of SEGIS-ES is to develop electrical energy storage components and systems specifically designed and optimized for grid-tied PV applications. This report describes the scope of the proposed SEGIS-ES Program and why it will be necessary to integrate energy storage with PV systems as PV-generated energy becomes more prevalent on the nation's utility grid. It also discusses the applications for which energy storage is most suited and for which it will provide the greatest economic and operational benefits to customers and utilities. Included is a detailed summary of the various storage technologies available, comparisons of their relative costs and development status, and a summary of key R&D needs for PV-storage systems. The report concludes with highlights of areas where further PV-specific R&D is needed and offers recommendations about how to proceed with their development.

Hanley, Charles J.; Ton, Dan T. (U.S. Department of Energy, Washington, D.C.); Boyes, John D.; Peek, Georgianne Huff

2008-07-01T23:59:59.000Z

157

Electric Grid - Forecasting system licensed | ornl.gov  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed NewcatalystNeutronEnvironmentZIRKLEEFFECTS OFElaineElectric Grid - Forecasting system

158

Advancing Smart Grid Interoperability and Implementing NIST's Interoperability Roadmap  

SciTech Connect (OSTI)

The IEEE American National Standards project P2030TM addressing smart grid interoperability and the IEEE 1547 series of standards addressing distributed resources interconnection with the grid have been identified in priority action plans in the Report to NIST on the Smart Grid Interoperability Standards Roadmap. This paper presents the status of the IEEE P2030 development, the IEEE 1547 series of standards publications and drafts, and provides insight on systems integration and grid infrastructure. The P2030 and 1547 series of standards are sponsored by IEEE Standards Coordinating Committee 21.

Basso,T.; DeBlasio, R.

2010-04-01T23:59:59.000Z

159

An automated energy management system in a smart grid context  

E-Print Network [OSTI]

The ongoing transformation of electric grids into smart grids provides the technological basis to implement demand-sensitive pricing strategies aimed at using the electric power infrastructure more efficiently. These ...

Lopes, M.

160

Study of Security Attributes of Smart Grid Systems- Current Cyber Security Issues  

SciTech Connect (OSTI)

This document provides information for a report to congress on Smart Grid security as required by Section 1309 of Title XIII of the Energy Independence and Security Act of 2007. The security of any future Smart Grid is dependent on successfully addressing the cyber security issues associated with the nation’s current power grid. Smart Grid will utilize numerous legacy systems and technologies that are currently installed. Therefore, known vulnerabilities in these legacy systems must be remediated and associated risks mitigated in order to increase the security and success of the Smart Grid. The implementation of Smart Grid will include the deployment of many new technologies and multiple communication infrastructures. This report describes the main technologies that support Smart Grid and summarizes the status of implementation into the existing U.S. electrical infrastructure.

Wayne F. Boyer; Scott A. McBride

2009-04-01T23:59:59.000Z

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


161

Earth System Grid II, Turning Climate Datasets into Community Resources  

SciTech Connect (OSTI)

The Earth System Grid (ESG) II project, funded by the Department of Energy’s Scientific Discovery through Advanced Computing program, has transformed climate data into community resources. ESG II has accomplished this goal by creating a virtual collaborative environment that links climate centers and users around the world to models and data via a computing Grid, which is based on the Department of Energy’s supercomputing resources and the Internet. Our project’s success stems from partnerships between climate researchers and computer scientists to advance basic and applied research in the terrestrial, atmospheric, and oceanic sciences. By interfacing with other climate science projects, we have learned that commonly used methods to manage and remotely distribute data among related groups lack infrastructure and under-utilize existing technologies. Knowledge and expertise gained from ESG II have helped the climate community plan strategies to manage a rapidly growing data environment more effectively. Moreover, approaches and technologies developed under the ESG project have impacted datasimulation integration in other disciplines, such as astrophysics, molecular biology and materials science.

Middleton, Don

2006-08-01T23:59:59.000Z

162

stdchk: A Checkpoint Storage System for Desktop Grid Computing Samer Al-Kiswany *  

E-Print Network [OSTI]

1 stdchk: A Checkpoint Storage System for Desktop Grid Computing Samer Al-Kiswany * , Matei Ripeanu running on desktop grids. This article argues that a checkpoint storage system, optimized to operate application semantics. Such a storage system can present a unifying abstraction to checkpoint operations

Pulfrey, David L.

163

stdchk: A Checkpoint Storage System for Desktop Grid Computing Samer Al Kiswany *  

E-Print Network [OSTI]

stdchk: A Checkpoint Storage System for Desktop Grid Computing Samer Al Kiswany * , Matei Ripeanu running on desktop grids. This article argues that a checkpoint storage system, optimized to operate application semantics. Such a storage system can present a unifying abstraction to checkpoint operations

Vazhkudai, Sudharshan

164

Selection of Model in Developing Information Security Criteria for Smart Grid Security System  

E-Print Network [OSTI]

At present, the "Smart Grid" has emerged as one of the best advanced energy supply chains. This paper looks into the security system of smart grid via the smart planet system. The scope focused on information security criteria that impact on consumer trust and satisfaction. The importance of information security criteria is perceived as the main aspect to impact on customer trust throughout the entire smart grid system. On one hand, this paper also focuses on the selection of the model for developing information security criteria on a smart grid.

Ling, Amy Poh Ai

2011-01-01T23:59:59.000Z

165

QCD Interconnection Effects  

E-Print Network [OSTI]

Heavy objects like the W, Z and t are short-lived compared with typical hadronization times. When pairs of such particles are produced, the subsequent hadronic decay systems may therefore become interconnected. We study such potential effects at Linear Collider energies.

Torbjörn Sjöstrand

1999-10-09T23:59:59.000Z

166

QCD Interconnection Effects  

E-Print Network [OSTI]

Heavy objects like the W, Z and t are short-lived compared with typical hadronization times. When pairs of such particles are produced, the subsequent hadronic decay systems may therefore become interconnected. We study such potential effects at Linear Collider energies.

Torbjörn Sjöstrand; Valery A. Khoze

1999-08-19T23:59:59.000Z

167

On certain analytical methods in finding integrable systems and their interconnections  

E-Print Network [OSTI]

In this paper, to begin with, we review six different analytical methods which are widely used to derive symmetries, integrating factors, multipliers, Darboux polynomials and integrals of second order nonlinear ordinary differential equations. We illustrate the algorithm behind each method by considering a nonlinear oscillator equation as an example. In the second part of this paper, we examine the interconnections between these methods. We establish a road map between extended Prelle-Singer procedure with all other methods cited above and thereby demonstrate the interplay between Lie point symmetries, $\\lambda$-symmetries, adjoint symmetries, null forms, integrating factors, Darboux polynomials, and Jacobi multipliers of second order integrable ODEs. The interconnections are illustrated with the same example finally.

R. Mohanasubha; V. K. Chandrasekar; M. Senthilvelan; M. Lakshmanan

2015-02-13T23:59:59.000Z

168

Energy Management System Lowers U.S. Navy Energy Costs Through PV System Interconnection (Fact Sheet)  

SciTech Connect (OSTI)

To meet the U.S. Navy's energy goals, the National Renewable Energy Laboratory (NREL) and the Naval Facilities Engineering Command (NAVFAC) spent two years collaborating on demonstrations that tested market-ready energy efficiency measures, renewable energy generation, and energy systems integration. One such technology - an energy management system - was identified as a promising method for reducing energy use and costs, and can contribute to increasing energy security.

Not Available

2014-04-01T23:59:59.000Z

169

COMPRESSED-AIR ENERGY STORAGE SYSTEMS FOR STAND-ALONE OFF-GRID PHOTOVOLTAIC MODULES  

E-Print Network [OSTI]

COMPRESSED-AIR ENERGY STORAGE SYSTEMS FOR STAND-ALONE OFF-GRID PHOTOVOLTAIC MODULES Dominique materials, flywheels, pumped hydro (PH), superconducting magnetic energy storage (SMES) and compressed air-grid alternative to the large-scale compressed air energy storage systems we propose to examine the viability

Deymier, Pierre

170

Development of New Three-Level Current-Source Inverter for Grid Connected Photovoltaic System  

E-Print Network [OSTI]

Development of New Three-Level Current-Source Inverter for Grid Connected Photovoltaic System-phase three-level current source inverter (CSI) driven by a single gate-drive power supply in both chopper and inverter, and its feasibility on grid connected photovoltaic system application. Using this new topology

Fujimoto, Hiroshi

171

Faculty Position in Smart-Grid Technologies and Power Systems Department of Electronics  

E-Print Network [OSTI]

Faculty Position in Smart-Grid Technologies and Power Systems Department of Electronics Carleton-track) appointment in the area of smart grid technology and power systems at the rank of Assistant, Associate or Full with an electrical power background to complement our existing strengths and build the stream of "smart technologies

172

Supporting Application-Tailored Grid File System Sessions with WSRF-Based Services  

E-Print Network [OSTI]

}@acis.ufl.edu Abstract This paper presents novel service-based Grid data management middleware that leverages standards defined by WSRF specifications to create and manage dynamic Grid file system sessions. A unique aspect features (file system copy-on-write checkpointing to aid recovery of client-side failures; replication

Figueiredo, Renato J.

173

Topic 3: Smart Grid Communications A.H. MohsenianRad (U of T) 1Networking and Distributed Systems  

E-Print Network [OSTI]

Topic 3: Smart Grid Communications A.H. MohsenianRad (U of T) 1Networking and Distributed Systems Reference Model for Smart Grid Dr. Hamed Mohsenian-Rad Texas Tech UniversityCommunications and Control in Smart Grid 2 · Each domain involves its own actors and applications. · Interactions across 7 Smart Grid

Mohsenian-Rad, Hamed

174

Performance of solar electric generating systems on the utility grid  

SciTech Connect (OSTI)

The first year of performance of the Solar Electric Generating System I (SEGS I), which has been operating on the Southern California Edison (SCE) grid since December 1984 is discussed. The solar field, comprised of 71,680 m/sup 2/ of Luz parabolic trough line-focus solar collectors, supplies thermal energy at approx. 585/sup 0/F to the thermal storage tank. This energy is then used to generate saturated steam at 550 psia and 477/sup 0/F which passes through an independent natural gas-fired superheater and is brought to 780/sup 0/F superheat. The solar collector assembly (SCA) is the primary building block of this modular system. A single SCA consists of a row of eight parabolic trough collectors, a single drive motor, and a local microprocessor control unit. The basic components of the parabolic trough collector are a mirrored glass reflector, a unique and highly efficient heat collection element, and a tracking/positioning system. The heat collector element contains a stainless steel absorber tube coated with black chrome selective surface and is contained within an evacuated cylindrical glass envelope. The plant has reached the design capacity of 14.7 MW and, on a continuous basis, provides approx. 13.8 MW of net power during the utility's on-peak periods (nominally 12:00 noon to 6:00 p.m. during the summer weekdays and 5:00 p.m. to 10:00 p.m. during the winter weekdays).

Roland, J.R.

1986-01-01T23:59:59.000Z

175

Advanced Interconnect Development  

SciTech Connect (OSTI)

The objectives of this project are to develop cost-effective, optimized materials for intermediate temperature SOFC interconnect and interconnect/electrode interface applications and identify and understand degradation processes in interconnects and at their interfaces with electrodes.

Yang, Z.G.; Maupin, G.; Simner, S.; Singh, P.; Stevenson, J.; Xia, G.

2005-01-27T23:59:59.000Z

176

Optically Interconnected MulticomputersUsing  

E-Print Network [OSTI]

Optically Interconnected MulticomputersUsing Inverted-GraphTopologies Tosuccessfullyexploitthebenefitsofopticaltechnologyinatightlycoupledmulticomputer, the architecturaldesignmust reflectboth the advantages and limitationsof optics. This article systems. Although optics have con- tributed dramatically to long-distance communi- cation and more

Krchnavek, Robert R.

177

Improved Power Grid Stability and Efficiency with a Building-Energy Cyber-Physical System  

E-Print Network [OSTI]

, or for sporadic reasons, for example a power plant goes offline unexpectedly (e.g., due to an earthquake or stagnant winds to propel wind turbines). Dur- ing an episode, the power grid operators must contend1 Improved Power Grid Stability and Efficiency with a Building-Energy Cyber-Physical System Mary

178

Integrated Retail and Wholesale Power System Operation with Smart-Grid Functionality  

E-Print Network [OSTI]

1 Integrated Retail and Wholesale Power System Operation with Smart-Grid Functionality Dionysios of retail and wholesale power markets operating over transmission and distribution networks with smart-grid functionality. This test bed seams together two existing test beds, the AMES Wholesale Power Market Test Bed

Tesfatsion, Leigh

179

Abstract--The distribution system provides major opportunities for smart grid concepts. One way to approach  

E-Print Network [OSTI]

1 Abstract-- The distribution system provides major opportunities for smart grid concepts. One way efficiencies through the use of waste heat. Managing significant levels of DER with a wide and dynamic set clustered generation and associated loads as a grid resource or a "microgrid". The clustered sources

180

Developing a PHP-based Legacy Application Grid System Lorenzo Campanelli  

E-Print Network [OSTI]

electrical grid. Just as the power grid is readily accessible and collectively organizes many power plants to defeat such threats are rewarded with greater efficiency over alternate systems for distributive derived its name from its ideal similarity to the way power companies and their users share the modern

Miles, Will

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


181

Risk Metrics for Dynamic Complex Infrastructure Systems such as the Power Transmission Grid  

E-Print Network [OSTI]

Risk Metrics for Dynamic Complex Infrastructure Systems such as the Power Transmission Grid D. E in their probability versus size. This power law behavior suggests that conventional risk analysis does not apply of the power transmission grid. How these metrics change, implying changed risk, with different upgrade

Dobson, Ian

182

Measured Off-Grid LED Lighting System Performance  

E-Print Network [OSTI]

The Specter of Fuel-Based Lighting," Science 308:1263-1264.Mills. 2008. "Solid-State Lighting on a Shoestring Budget:The Economics of Off-Grid Lighting for Small Businesses in

Granderson, Jessica

2009-01-01T23:59:59.000Z

183

Deploying Systems Interoperability and Customer Choice within Smart Grid  

E-Print Network [OSTI]

view/SmartGrid/PAP03PriceProduct Energy Market InformationOASIS). (2011b). Energy Market Information Exchange (EMIX)described earlier, the Energy Market Information Exchange (

Ghatikar, Girish

2014-01-01T23:59:59.000Z

184

Solar Energy Systems - Research - Systems Analysis - Smart Grid  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSite CulturalDepartment ofat

185

738 IEEE TRANSACTIONS ON SMART GRID, VOL. 3, NO. 2, JUNE 2012 Utilizing a Smart Grid Monitoring System to Improve  

E-Print Network [OSTI]

738 IEEE TRANSACTIONS ON SMART GRID, VOL. 3, NO. 2, JUNE 2012 Utilizing a Smart Grid Monitoring, Senior Member, IEEE Abstract--The implementation of smart grids will fundamen- tally change the approach that relies upon customer complaints. The monitoring capabilities of a smart grid will allow utilities

Simões, Marcelo Godoy

186

National electrical code changes for 1996 and USA participation in International Energy Agency activities related to photovoltaics safety and grid interconnection  

SciTech Connect (OSTI)

As photovoltaic (PV) systems gain more acceptance in utility-interactive applications throughout the world, many organizations are placing increasingly higher priorities on writing guidelines, codes and standards. These guidelines and codes are being written to improve safety, installation, acceptance, listing or certification of the PV components or systems. Sandia National Laboratories` PV System Applications Department is working closely with the PV industry to address issues that are associated with fire and personnel safety and with National Electrical Code (NEC) requirements. Additionally, the United States has agreed to participate in two of the International Energy Agency (IEA) Annexes (topical tasks) of the Implementing Agreement for a Cooperative Programme on Photovoltaic Power Systems. This paper describes events and activities associated with the NEC and the IEA that are being led by Sandia National Laboratories with broad participation by the US PV industry.

Bower, W.

1995-01-01T23:59:59.000Z

187

Interconnection networks  

DOE Patents [OSTI]

A network of interconnected processors is formed from a vertex symmetric graph selected from graphs GAMMA/sub d/(k) with degree d, diameter k, and (d + 1)exclamation/ (d /minus/ k + 1)exclamation processors for each d greater than or equal to k and GAMMA/sub d/(k, /minus/1) with degree d /minus/ 1, diameter k + 1, and (d + 1)exclamation/(d /minus/ k + 1)exclamation processors for each d greater than or equal to k greater than or equal to 4. Each processor has an address formed by one of the permutations from a predetermined sequence of letters chosen a selected number of letters at a time, and an extended address formed by appending to the address the remaining ones of the predetermined sequence of letters. A plurality of transmission channels is provided from each of the processors, where each processor has one less channel than the selected number of letters forming the sequence. Where a network GAMMA/sub d/(k, /minus/1) is provided, no processor has a channel connected to form an edge in a direction delta/sub 1/. Each of the channels has an identification number selected from the sequence of letters and connected from a first processor having a first extended address to a second processor having a second address formed from a second extended address defined by moving to the front of the first extended address the letter found in the position within the first extended address defined by the channel identification number. The second address is then formed by selecting the first elements of the second extended address corresponding to the selected number used to form the address permutations. 9 figs.

Faber, V.; Moore, J.W.

1988-06-20T23:59:59.000Z

188

Implementation of a low-cost smart grid device to prevent brownouts in village micro-hydro systems.  

E-Print Network [OSTI]

??Brownouts are a common problem in micro-hydro mini-grid systems due to the limited supply of power and the difficulty of restricting usage. The GridShare is… (more)

Quetchenbach, Thomas

2011-01-01T23:59:59.000Z

189

A grid-enabled MPI : message passing in heterogeneous distributed computing systems.  

SciTech Connect (OSTI)

Application development for high-performance distributed computing systems, or computational grids as they are sometimes called, requires grid-enabled tools that hide mundate aspects of the heterogeneous grid environment without compromising performance. As part of an investigation of these issues, they have developed MPICH-G, a grid-enabled implementation of the Message Passing Interface (MPI) that allows a user to run MPI programs across multiple computers at different sites using the same commands that would be used on a parallel computer. This library extends the Argonne MPICH implementation of MPI to use services provided by the globus grid toolkit. In this paper, they describe the MPICH-G implementation and present preliminary performance results.

Foster, I.; Karonis, N. T.

2000-11-30T23:59:59.000Z

190

GridLab Power Distribution System Simulation | 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 Office of InspectorConcentrating Solar Power BasicsGermany: Energy ResourcesNewsInformation Grid-ConnectedGridLab

191

Final Report on Transmission Pricing in the Western Interconnection  

SciTech Connect (OSTI)

Under this project, the Committee on Regional Electric Power Cooperation (CREPC) of the Western Interstate Energy Board developed a ''western pricing and congestion management proposal'' in order to foster efficient wholesale power markets and efficient use and expansion of the transmission grid. Drafts of this paper provided useful information to states/provinces in the Western Interconnection as Western Regional Transmission Organization (RTO) transmission pricing proposals have continued to evolve. Throughout the project there has been a gradual, but incomplete agreement on pricing systems to be used by RTOs in the West.

Douglas C. Larson; Lawrence Nordell

2003-06-25T23:59:59.000Z

192

Overture: An advanced object-oriented software system for moving overlapping grid computations  

SciTech Connect (OSTI)

While the development of high-level, easy-to-use, software libraries for numerical computations has been successful in some areas (e.g. linear system solvers, ODE solvers, grid generation), this has been an elusive goal for developers of partial differential equation (PDE) solvers. The advent of new high level languages such as C++ has begun to make this an achievable goal. This report discusses an object- oriented environment that we are developing for solving problems on overlapping (Chimera) grids. The goal of this effort is to support flexible PDE solvers on adaptive, moving, overlapping grids that cover a domain and overlap where they meet. Solutions values at the overlap are determined by interpolation. The overlapping grid approach is particularly efficient for rapidly generating high- quality grids for moving geometries since as the component grids move, only the list of interpolation points changes, and the component grids do not have to be regenerated. We use structured component grids so that efficient, fast finite-difference algorithms can be used. Oliger-Berger-Corella type mesh refinement is used to efficiently resolve fine features of the flow.

Brown, D.L.; Henshaw, W.D.

1996-09-01T23:59:59.000Z

193

Considerations Related to Connecting Solar Generating Facilities to the Electrical Grid  

E-Print Network [OSTI]

Considerations Related to Connecting Solar Generating Facilities to the Electrical Grid March 2011 voltages are nominally 4.5kv and 13 2kv The solar system must maintain voltageand 13.2kv. The solar system) or multiple sites (multiple leases, interconnect points, construction forces) Ground based, roof top (weight

Homes, Christopher C.

194

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 for integrating novel new operations and planning technologies with external power grid systems, including energy

195

Cyber-Vulnerability of Power Grid Monitoring and Control Systems  

E-Print Network [OSTI]

, a methodology is proposed for the evaluation of the impact of cyber attacks on the power grid-effect on the proposed method determines the likelihood of the consequence, which can be evaluated based on a substation networks can lead to undesirable switching operations executed by attackers, resulting in widespread power

Manimaran, Govindarasu

196

Energy system development in Africa : the case of grid and off-grid power in Kenya  

E-Print Network [OSTI]

This research used a combination of a grounded theory approach and system dynamics to study the electric power system in Kenya and to model the feedback at work in the development of the system. The ethnographic study ...

Steel, Katherine Deaton

2008-01-01T23:59:59.000Z

197

AUSTRIAN GRID AUSTRIAN GRID  

E-Print Network [OSTI]

AUSTRIAN GRID 1/18 AUSTRIAN GRID THE INITIAL VERSION OF SEE-GRID Document Identifier: AG-DA1c-1) #12;AUSTRIAN GRID 2/18 Delivery Slip Name Partner Date Signature From Károly Bósa RISC 31 See cover on page 3 #12;AUSTRIAN GRID 3/18 THE INITIAL VERSION OF SEE-GRID Karoly Bosa Wolfgang

198

Distribution Grid Integration  

Broader source: Energy.gov [DOE]

The DOE Systems Integration team funds distribution grid integration research and development (R&D) activities to address the technical issues that surround distribution grid planning,...

199

Interconnection Guidelines  

Broader source: Energy.gov [DOE]

The Georgia Cogeneration and Distributed Generation Act of 2001 allows residential electricity customers with photovoltaic (PV) systems, wind-energy systems or fuel cells up to 10 kilowatts (kW) in...

200

Grid-based precision aim system and method for disrupting suspect objects  

SciTech Connect (OSTI)

A system and method for disrupting at least one component of a suspect object is provided. The system has a source for passing radiation through the suspect object, a grid board positionable adjacent the suspect object (the grid board having a plurality of grid areas, the radiation from the source passing through the grid board), a screen for receiving the radiation passing through the suspect object and generating at least one image, a weapon for deploying a discharge, and a targeting unit for displaying the image of the suspect object and aiming the weapon according to a disruption point on the displayed image and deploying the discharge into the suspect object to disable the suspect object.

Gladwell, Thomas Scott; Garretson, Justin; Hobart, Clinton G.; Monda, Mark J.

2014-06-10T23:59:59.000Z

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


201

Supplying Baseload Power and Reducing Transmission Requirements by Interconnecting Wind Farms  

E-Print Network [OSTI]

Supplying Baseload Power and Reducing Transmission Requirements by Interconnecting Wind Farms is not used to supply baseload electric power today. Interconnecting wind farms through the transmission grid farms are interconnected in an array, wind speed correlation among sites decreases and so does

202

Protecting Intelligent Distributed Power Grids against Cyber Attacks  

SciTech Connect (OSTI)

Like other industrial sectors, the electrical power industry is facing challenges involved with the increasing demand for interconnected operations and control. The electrical industry has largely been restructured due to deregulation of the electrical market and the trend of the Smart Grid. This moves new automation systems from being proprietary and closed to the current state of Information Technology (IT) being highly interconnected and open. However, while gaining all of the scale and performance benefits of IT, existing IT security challenges are acquired as well. The power grid automation network has inherent security risks due to the fact that the systems and applications for the power grid were not originally designed for the general IT environment. In this paper, we propose a conceptual layered framework for protecting power grid automation systems against cyber attacks. The following factors are taken into account: (1) integration with existing, legacy systems in a non-intrusive fashion; (2) desirable performance in terms of modularity, scalability, extendibility, and manageability; (3) alignment to the 'Roadmap to Secure Control Systems in the Energy Sector' and the future smart grid. The on-site system test of the developed prototype security system is briefly presented as well.

Dong Wei; Yan Lu; Mohsen Jafari; Paul Skare; Kenneth Rohde

2010-12-31T23:59:59.000Z

203

Grid-Connected Renewable Energy Systems Case Studies | Open Energy  

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 Office of InspectorConcentrating Solar Power BasicsGermany: Energy ResourcesNewsInformation Grid-Connected

204

Design of Micro-grid System Based on Renewable Power Generation Units  

E-Print Network [OSTI]

Abstract- Micro-grid system is currently a conceptual solution to fulfill the commitment of reliable power delivery for future power systems. Renewable power sources such as wind and hydro offer the best potential for emission free power for future micro-grid systems. This paper presents a micro-grid system based on wind and hydro power sources and addresses issues related to operation, control, and stability of the system. The micro-grid system investigated in this paper represents a case study in Newfoundland, Canada. It consists of a small hydro generation unit and a wind farm that contains nine variable- speed, double-fed induction generator based wind turbines. Using Matlab/Simulink, the system is modeled and simulated to identify the technical issues involved in the operation of a micro-grid system based on renewable power generation units. The operational modes, technical challenges and a brief outline of conceptual approaches to addressing some of the technical issues are presented for further investigation.

Dr. K. Ravich; M. Manasa; Mr. P. Yohan Babu; G. V. P. Anjaneyulu

205

Western Baldwin County, AL Grid Interconnection Project  

SciTech Connect (OSTI)

The Objective of this Project was to provide an additional supply of electricity to the affected portions of Baldwin County, AL through the purchase, installation, and operation of certain substation equipment.

Thomas DeBell

2011-09-30T23:59:59.000Z

206

Interconnection Standards  

Broader source: Energy.gov [DOE]

New Hampshire requires all utilities selling electricity in the state to offer net metering to customers who own or operate systems up to one megawatt (1 MW) in capacity that generate electricity...

207

Interconnection Guidelines  

Broader source: Energy.gov [DOE]

In April 2001, Arkansas enacted legislation directing the Arkansas Public Service Commission (PSC) to establish net-metering rules for certain renewable-energy systems. The Arkansas Public Service...

208

Some characteristics of emerging distribution systems considering the smart grid initiative  

SciTech Connect (OSTI)

Modernization of the electric power system in the United States is driven by the Smart Grid Initiative. Many changes are planned in the coming years to the distribution side of the U.S. electricity delivery infrastructure to embody the idea of ''smart distribution systems.'' However, no functional or technical definition of a smart distribution system has yet been accepted by all. (author)

Brown, Hilary E.; Suryanarayanan, Siddharth; Heydt, Gerald T.

2010-06-15T23:59:59.000Z

209

Port Hamiltonian Formulation of Infinite Dimensional Systems II. Boundary Control by Interconnection  

E-Print Network [OSTI]

Port Hamiltonian Formulation of Infinite Dimensional Systems II. Boundary Control, some new results concerning the boundary control of distributed parameter systems in port Hamiltonian form are presented. The classical finite dimen- sional port Hamiltonian formulation of a dynamical

Schaft, Arjan van der

210

Behavioral interpretation of the object-oriented paradigm for interconnected dynamic system  

E-Print Network [OSTI]

-oriented language Modelica is finally presented. 1 Keywords Object-modeling techniques, mathematical models, dynamic, published in "International Journal of Systems Science 38, 4 (2007) 319-326" #12;language: Modelica [Tiller dynamic systems, e.g. the language Modelica, lead to handle differential algebraic equation systems

Paris-Sud XI, Université de

211

Smart Grid System Report U.S. 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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment of Energy U.S. DepartmentCommitmentGovernmentSmart Cities - 1 Smart Grid

212

Sandia National Laboratories: Solar Energy Grid Intergration Systems  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErikGroundbreaking WorkTransformationSitingMolten Salt Test LoopGrid

213

Risk Assessment and Management for Interconnected and Interactive Critical Flood Defense Systems  

E-Print Network [OSTI]

terminals, offshore platforms, and nuclear power plants [offshore, and nuclear systems. For example, in the case of a nuclear power plant,

Hamedifar, Hamed

2012-01-01T23:59:59.000Z

214

Using System Dynamics to Define, Study, and Implement Smart Control Strategies on the Electric Power Grid  

SciTech Connect (OSTI)

The United States electric power grid is the most complex and expansive control system in the world. Local generation control occurs at individual units based on response time and unit economics, larger regional control coordinates unit response to error conditions, and high level large-area regional control is ultimately administered by a network of humans guided by economic and resiliency related factors. Under normal operating conditions, the grid is a relatively slow moving entity that exhibits high inertia to outside stimuli, and behaves along repeatable diurnal and seasonal patterns. However, that paradigm is quickly changing because of the increasing implementation of renewable generation sources. Renewable generators by nature cannot be tightly controlled or scheduled. They appear like a negative load to the system with all of the variability associated with load on a larger scale. Also, grid-reactive loads (i.e. smart devices) can alter their consumption based on price or demand rules adding more variability to system behavior. This paper demonstrates how a systems dynamic modeling approach capable of operating over multiple time scales, can provide valuable insight into developing new “smart-grid” control strategies and devices needed to accommodate renewable generation and regulate the frequency of the grid.

Lyle G. Roybal; Robert F Jeffers

2013-07-01T23:59:59.000Z

215

High Penetration of Photovoltaic (PV) Systems into the Distribution Grid, Workshop Report, February 24-25, 2009  

SciTech Connect (OSTI)

Outcomes from the EERE Solar Energy Technologies Program workshop on high penetration of photovoltaic (PV) systems into the distribution grid, Feb. 24-25, 2009, Ontario, Calif.

Not Available

2009-06-01T23:59:59.000Z

216

Production Cost Modeling of Cogenerators in an Interconnected Electric Supply System  

E-Print Network [OSTI]

The Optimal State Electricity Supply System in Texas (OSEST) research project is part of the continuing Public Utility Commission of Texas (PUCT) effort to identify possible improvements in the production, transmission, and use of electricity...

Ragsdale, K.

217

A continuous distribution method for reliability evaluation of interconnected power systems  

E-Print Network [OSTI]

Recursive algorithms and approximations using continuous distributions are the two basic techniques for reliability calculations of generation systems. Within assumptions common to both methodologies, recursive without using any round-off is exact...

Chintaluri, Gouri Mohana

1993-01-01T23:59:59.000Z

218

Automated application-specific optimisation of interconnects in multi-core systems   

E-Print Network [OSTI]

In embedded computer systems there are often tasks, implemented as stand-alone devices, that are both application-specific and compute intensive. A recurring problem in this area is to design these application-specific ...

Almer, Oscar Erik Gabriel

2012-11-29T23:59:59.000Z

219

Estimating the Actual Cost of Transmission System Congestion  

E-Print Network [OSTI]

of the utility's generation, load and tie-line flows over the study time period. Due to the common lack by most be used by a utility to estimate the actual cost of congestion on its transmission system using limited interconnected grid (i.e., the Eastern Interconnect), costs for the utility's generators, and then hourly values

220

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

SciTech Connect (OSTI)

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.

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

2014-12-24T23:59:59.000Z

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


221

Grid-Connected Marine Current Generation System Power Smoothing Control Using Supercapacitors  

E-Print Network [OSTI]

Grid-Connected Marine Current Generation System Power Smoothing Control Using Supercapacitors to reduce the fluctuation of generator power. In the second step, Supercapacitor (SC) Energy Storage System fluctuation, swell effect, power smoothing control, supercapacitor. I. [NTRODUCTION [n the recent years

Paris-Sud XI, Université de

222

Integrated Retail and Wholesale (IRW) Power System Operations with Smart-Grid Functionality  

E-Print Network [OSTI]

Integrated Retail and Wholesale (IRW) Power System Operations with Smart-Grid Functionality Leigh of the Integrated Retail/Wholesale (IRW) project at Iowa State University · IRW Test Bed development · Integration-NE, MISO, XM, RTE, MEC IRW Project: Integrated Retail/Wholesale Power System Operation with Smart

Tesfatsion, Leigh

223

EXPANDABLE HYBRID SYSTEMS FOR MULTI-USER MINI-GRIDS Michel Vandenbergh1  

E-Print Network [OSTI]

the company Trama Tecnoambiental S.L. and the distributed AC-bus system Sunny Island and Sunny Boy family from and distribution system which supply consists of a combination of two or more types of electricity generating-grids all around the world and could be retrofitted with renewable power generators and battery storage

Paris-Sud XI, Université de

224

THE INTEGRATION AND CONTROL OF MULTIFUNCTIONAL STATIONARY PV-BATTERY SYSTEMS IN SMART DISTRIBUTION GRID  

E-Print Network [OSTI]

) in presence of photovoltaic (PV) panel on the view of techno economic optimal sizing taking the considerationTHE INTEGRATION AND CONTROL OF MULTIFUNCTIONAL STATIONARY PV-BATTERY SYSTEMS IN SMART DISTRIBUTION stationary battery energy storage systems (BESS) in the public low-voltage distribution grid in order

Berning, Torsten

225

Interconnected High-Voltage Pulsed-Power Converters System Design for H? Ion Sources  

E-Print Network [OSTI]

This paper presents the design and experimental validations of a system of three new high-voltage (HV) pulsedpower converters for the H? sources. The system requires three pulsed voltages (50, 40, and 25 kV to ground) at 2-Hz repetition rate, for 700 ?s of usable flat-top. The solution presents ripplefree output voltages and minimal stored energy to protect the ion source from the consequences of arc events. Experimental results on the final full-scale prototype are presented. In case of short-circuit events, the maximal energy delivered to the source is in the Joule range. HV flat-top stability of 1% is experimentally achieved with a simple Proportional-Integral- Derivative regulation and preliminary tuned H? source (e.g., radio frequency control, gas injection, and so forth). The system is running since more than a year with no power converter failures and damage to the source.

Aguglia, D

2014-01-01T23:59:59.000Z

226

Scalable Approach to Uncertainty Quantification and Robust Design of Interconnected Dynamical Systems  

E-Print Network [OSTI]

Development of robust dynamical systems and networks such as autonomous aircraft systems capable of accomplishing complex missions faces challenges due to the dynamically evolving uncertainties coming from model uncertainties, necessity to operate in a hostile cluttered urban environment, and the distributed and dynamic nature of the communication and computation resources. Model-based robust design is difficult because of the complexity of the hybrid dynamic models including continuous vehicle dynamics, the discrete models of computations and communications, and the size of the problem. We will overview recent advances in methodology and tools to model, analyze, and design robust autonomous aerospace systems operating in uncertain environment, with stress on efficient uncertainty quantification and robust design using the case studies of the mission including model-based target tracking and search, and trajectory planning in uncertain urban environment. To show that the methodology is generally applicable to...

Banaszuk, Andrzej; Frewen, Thomas A; Kobilarov, Marin; Mathew, George; Mezic, Igor; Pinto, Alessandro; Sahai, Tuhin; Sane, Harshad; Speranzon, Alberto; Surana, Amit

2011-01-01T23:59:59.000Z

227

The inverter is a major component of photovoltaic (PV) systems either autonomous or grid connected. It affects the  

E-Print Network [OSTI]

and a variety of photovoltaic modules. The PV systems range in size from 2.5 to 3.6 kilowatts. The purposeABSTRACT The inverter is a major component of photovoltaic (PV) systems either autonomous or grid. INTRODUCTION For any grid tied photovoltaic (PV) system, the inverter is the essential piece of equipment

Oregon, University of

228

Study of an interconnected flashing warning light system for work zone lane closures  

E-Print Network [OSTI]

of Transportation (TxDOT). Prior to full-scale field testing, proving ground studies were conducted at the TTI Proving Ground facility with 59 subjects to determine if this system encouraged motorists to leave a closed lane without causing confusion and its likely...

Finley, Melisa Dayle

2012-06-07T23:59:59.000Z

229

Sustainable systems for the storage and conversion of energy are dependent on interconnected  

E-Print Network [OSTI]

and heating in compact packages. Thermal systems utilizing environmentally friendly working fluids for high-efficiency investigations of the fundamentals of multi- component heat and mass transfer, microscale condensation framework, the development of new sustainable energy technologies for applications including high

Reisslein, Martin

230

Direct power control of grid connected PV systems with three level NPC inverter  

SciTech Connect (OSTI)

This paper presents the control of a three-level Neutral Point Clamped (NPC) voltage source inverter for grid connected photovoltaic (PV) systems. The control method used is the Extended Direct Power Control (EDPC), which is a generic approach for Direct Power Control (DPC) of multilevel inverters based on geometrical considerations. Maximum Power Point Tracking (MPPT) algorithms, that allow maximal power conversion into the grid, have been included. These methods are capable of extracting maximum power from each of the independent PV arrays connected to each DC link voltage level. The first one is a conventional MPPT which outputs DC link voltage references to EDPC. The second one is based on DPC concept. This new MPPT outputs power increment references to EDPC, thus avoiding the use of a DC link voltage regulator. The whole control system has been tested on a three-level NPC voltage source inverter connected to the grid and results confirm the validity of the method. (author)

Alonso-Martinez, Jaime; Eloy-Garcia, Joaquin; Arnaltes, Santiago [Dept. of Electrical Engineering, University Carlos III of Madrid, Avda. Universidad 30, 28911 Leganes, Madrid (Spain)

2010-07-15T23:59:59.000Z

231

Methodology to determine the technical performance and value proposition for grid-scale energy storage systems : a study for the DOE energy storage systems program.  

SciTech Connect (OSTI)

As the amount of renewable generation increases, the inherent variability of wind and photovoltaic systems must be addressed in order to ensure the continued safe and reliable operation of the nation's electricity grid. Grid-scale energy storage systems are uniquely suited to address the variability of renewable generation and to provide other valuable grid services. The goal of this report is to quantify the technical performance required to provide di erent grid bene ts and to specify the proper techniques for estimating the value of grid-scale energy storage systems.

Byrne, Raymond Harry; Loose, Verne William; Donnelly, Matthew K. [Montana Tech of The University of Montana, Butte, MT; Trudnowski, Daniel J. [Montana Tech of The University of Montana, Butte, MT

2012-12-01T23:59:59.000Z

232

Size reduction of high- and low-moisture corn stalks by linear knife grid system  

SciTech Connect (OSTI)

High- and low-moisture corn stalks were tested using a linear knife grid size reduction device developed for first-stage size reduction. The device was used in conjunction with a universal test machine that quantified shearing stress and energy characteristics for forcing a bed of corn stalks through a grid of sharp knives. No published engineering performance data for corn stover with similar devices are available to optimize performance; however, commercial knife grid systems exist for forage size reduction. From the force displacement data, mean and maximum ultimate shear stresses, cumulative and peak mass-based cutting energies for corn stalks, and mean new surface area-based cutting energies were determined from 4 5 refill runs at two moisture contents (78.8% and 11.3% wet basis), three knife grid spacings (25.4, 50.8, and 101.6 mm), and three bed depths (50.8, 101.6, and 152.4 mm). In general, the results indicated that peak failure load, ultimate shear stress, and cutting energy values varied directly with bed depth and inversely with knife grid spacing. Mean separation analysis established that high- and low-moisture conditions and bed depths 101.6 mm did not differ significantly (P < 0.05) for ultimate stress and cutting energy values, but knife grid spacing were significantly different. Linear knife grid cutting energy requirements for both moisture conditions of corn stalks were much smaller than reported cutting energy requirements. Ultimate shear stress and cutting energy results of this research should aid the engineering design of commercial scale linear knife gird size reduction equipment for various biomass feedstocks.

Womac, A.R. [University of Tennessee; Igathinathane, C. [Mississippi State University (MSU); Sokhansanj, Shahabaddine [ORNL; Narayan, S. [First American Scientific Co.

2009-04-01T23:59:59.000Z

233

Measured Off-Grid LED Lighting System Performance  

SciTech Connect (OSTI)

This report is a product of our ongoing effort to support the development of high-quality yet affordable products for off-grid lighting in the developing world that have good potential to succeed in the market. The effort includes work to develop low-cost testing procedures, to identify useful performance metrics, and to facilitate the development of industry standards and product rating protocols. We conducted laboratory testing of nine distinct product lines. In some cases we also tested multiple generations of a single product line and/or operating modes for a product. The resultsare summarized in Table 1. We found that power consumption and light output varied by nearly a factor of 12, with efficacy varying by a factor of more than six. Of particular note, overall luminous efficacy varied from 8.2 to 53.1 lumens per watt. Color quality indices variedmaterially, especially for correlated color temperature. Maximum illuminance, beamcandlepower, and luminance varied by 8x, 32x, and 61x respectively, suggesting considerable differences among products in terms of service levels and visual comfort. Glare varied by1.4x, and was above acceptable thresholds in most cases. Optical losses play a role in overall performance, varying by a factor of 3.2 and ranging as high as 24percent. These findings collectively indicate considerable potential for improved product design.

Granderson, Jessica; Galvin, James; Bolotov, Dmitriy; Clear, Robert; Jacobson, Arne; Mills, Evan

2008-12-18T23:59:59.000Z

234

Monitoring and analysis of two grid connected PV systems Michael BRESSAN* Valrie DUPE**, Bruno JAMMES**, Thierry TALBERT*, Corinne ALONSO**  

E-Print Network [OSTI]

Reliability and Availability Abstract In this paper, two grid connected photovoltaic systems are studied and monitored for fault detection ad predictive reliability. The first PV grid, is at CNRS-PROMES laboratory systemsThen, from these measurements, a performance analysis of the photovoltaic power generation

Paris-Sud XI, Université de

235

992 IEEE TRANSACTIONS ON SMART GRID, VOL. 5, NO. 2, MARCH 2014 Adaptive Control for Energy Storage Systems in  

E-Print Network [OSTI]

992 IEEE TRANSACTIONS ON SMART GRID, VOL. 5, NO. 2, MARCH 2014 Adaptive Control for Energy Storage) power generation and energy storage systems into the smart grid will provide a better way of utilizing and storage systems. Index Terms--Control, energy storage, photovoltaic, prediction. I. INTRODUCTION

Pedram, Massoud

236

Utility Grid-Connected Distributed Power Systems National Solar Energy Conference  

E-Print Network [OSTI]

Utility Grid-Connected Distributed Power Systems National Solar Energy Conference ASES Solar 96 at least half of its energy obtained from energy efficiency and renewable resources by the year 2000. Solar energy, distributed generation resource. Investments made in solar power today are expected to provide

237

Shaping Power System Inter-area Oscillations through Control Loops of Grid Integrated Wind Farms  

E-Print Network [OSTI]

Shaping Power System Inter-area Oscillations through Control Loops of Grid Integrated Wind Farms. However, in many situations, it may not be possible to site a wind farm at the location with the most desirable frequency response. Here, we show that one can design a wind farm controller to shape

Gayme, Dennice

238

MODULAR MULTI-LEVEL CONVERTER BASED HVDC SYSTEM FOR GRID CONNECTION OF OFFSHORE WIND  

E-Print Network [OSTI]

MODULAR MULTI-LEVEL CONVERTER BASED HVDC SYSTEM FOR GRID CONNECTION OF OFFSHORE WIND POWER PLANT U off-shore wind power plants. The MMC consists of a large number of simple voltage sourced converter offshore wind power plants (WPP) because they offer higher energy yield due to a superior wind profile

Chaudhary, Sanjay

239

Multicore Architecture for Control and Emulation of Power Electronics and Smart Grid Systems  

E-Print Network [OSTI]

, and control subsystem on the other side. Power electronics enables power flow interface of solar photovoltaic Modeling The boost converter is a high efficiency DC/DC switching-mode power converter, with an output DCMulticore Architecture for Control and Emulation of Power Electronics and Smart Grid Systems Michel

Sanders, Seth

240

Probability-Based Software for Grid Optimization: Improved Power System Operations Using Advanced Stochastic Optimization  

SciTech Connect (OSTI)

GENI Project: Sandia National Laboratories is working with several commercial and university partners to develop software for market management systems (MMSs) that enable greater use of renewable energy sources throughout the grid. MMSs are used to securely and optimally determine which energy resources should be used to service energy demand across the country. Contributions of electricity to the grid from renewable energy sources such as wind and solar are intermittent, introducing complications for MMSs, which have trouble accommodating the multiple sources of price and supply uncertainties associated with bringing these new types of energy into the grid. Sandia’s software will bring a new, probability-based formulation to account for these uncertainties. By factoring in various probability scenarios for electricity production from renewable energy sources in real time, Sandia’s formula can reduce the risk of inefficient electricity transmission, save ratepayers money, conserve power, and support the future use of renewable energy.

None

2012-02-24T23:59:59.000Z

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


241

PJM Interconnection (Multiple States)  

Broader source: Energy.gov [DOE]

PJM (originally Pennsylvania, Jersey, Maryland) Interconnection is a Regional Transmission Organization (RTO) that coordinates the movement of wholesale electricity in all or parts of Delaware,...

242

Interconnect Issues in NE  

Broader source: Energy.gov [DOE]

Presentation covers interconnect issues in the Northeast and is given at the Spring 2010 Federal Utility Partnership Working Group (FUPWG) meeting in Providence, Rhode Island.

243

Interconnecting PV on New York City's Secondary Network  

E-Print Network [OSTI]

Interconnecting PV on New York City's Secondary Network Distribution System K. Anderson, M #12;Technical Report Interconnecting PV on New York NREL/ TP-7A2-46902 City's Secondary Network of Concerns and Solutions to PV Interconnection in New York City 4.0 Utility Application Process Review 5

244

Networked Loads in the Distribution Grid  

E-Print Network [OSTI]

Lu, and Deborah A. Frincke. Smart-Grid Security Issues. IEEELoads in the Distribution Grid Zhifang Wang ? , Xiao Li † ,Transformer   sensors   Grid   Cyber  system   Cooling    

Wang, Zhifang; Li, Xiao; Muthukumar, Vishak; Scaglione, Anna; Peisert, Sean; McParland, Chuck

2012-01-01T23:59:59.000Z

245

PMEL contributions to the collaboration: SCALING THE EARTH SYSTEM GRID TO PETASCALE DATA for the DOE SciDACs Earth System Grid Center for Enabling Technologies  

SciTech Connect (OSTI)

Drawing to a close after five years of funding from DOE's ASCR and BER program offices, the SciDAC-2 project called the Earth System Grid (ESG) Center for Enabling Technologies has successfully established a new capability for serving data from distributed centers. The system enables users to access, analyze, and visualize data using a globally federated collection of networks, computers and software. The ESG softwareâ??now known as the Earth System Grid Federation (ESGF)â??has attracted a broad developer base and has been widely adopted so that it is now being utilized in serving the most comprehensive multi-model climate data sets in the world. The system is used to support international climate model intercomparison activities as well as high profile U.S. DOE, NOAA, NASA, and NSF projects. It currently provides more than 25,000 users access to more than half a petabyte of climate data (from models and from observations) and has enabled over a 1,000 scientific publications.

Hankin, Steve

2012-06-01T23:59:59.000Z

246

Circuit Topology Study of Grid-Connected Photovoltaic System.  

E-Print Network [OSTI]

??Many different circuit topologies have been suggested for large scale photovoltaic systems. The cost and the efficiency are still the major issues of large scale… (more)

Mansouri, Seyed Akbar

2011-01-01T23:59:59.000Z

247

EELE408 Photovoltaics Lecture 22: Grid Tied Systems  

E-Print Network [OSTI]

City Hall 11 Two inverters in this systems Photovoltaic & Solar Heating 12 Hot water tilted for winter panels: Kyrocera 210 ­ Inverter: Fronius IG 5.0 · 5000 W · Price Estimate ­ Solar Modules (24) $20k anchors Installed Anchor System Fl hi dd d h f i hi l d 4 Flashing added as the roof is shingled Solar

Kaiser, Todd J.

248

PVUSA: The value of photovoltaics in the distribution system. The Kerman Grid-Support Project  

SciTech Connect (OSTI)

As part of the Photovoltaics for Utility Scale Applications Applications (PVUSA) Project Pacific Gas Electric Company (PG&E) built the Kerman 500-kW photovoltaic power plant. Located near the end of a distribution feeder in a rural section of Fresno County, the plant was not built so much to demonstrate PV technology, but to evaluate its interaction with the local distribution grid and quantify available nontraditional grid-support benefits (those other than energy and capacity). As demand for new generation began to languish in the 1980s, and siting and permitting of power plants and transmission lines became more involved, utilities began considering smaller, distributed power sources. Potential benefits include shorter construction lead time, less capital outlay, and better utilization of existing assets. The results of a PG&E study in 1990/1991 of the benefits from a PV system to the distribution grid prompted the PVUSA Project to construct a plant at Kerman. Completed in 1993, the plant is believed to be the first one specifically built to evaluate the multiple benefits to the grid of a strategically sited plant. Each of nine discrete benefits were evaluated in detail by first establishing the technical impact, then translating the results into present economic value. Benefits span the entire system from distribution feeder to the generation fleet. This work breaks new ground in evaluation of distributed resources, and suggests that resource planning practices be expanded to account for these non-traditional benefits.

Wenger, H.J.; Hoff, T.E. [Pacific Energy Group, Walnut Creek, CA (United States)

1995-05-01T23:59:59.000Z

249

Solar cell array interconnects  

DOE Patents [OSTI]

Electrical interconnects are disclosed for solar cells or other electronic components using a silver-silicone paste or a lead-tin (Pb-Sn) no-clean fluxless solder cream, whereby the high breakage of thin (<6 mil thick) solar cells using conventional solder interconnect is eliminated. The interconnects of this invention employs copper strips which are secured to the solar cells by a silver-silicone conductive paste which can be used at room temperature, or by a Pb-Sn solder cream which eliminates undesired residue on the active surfaces of the solar cells. Electrical testing using the interconnects of this invention has shown that no degradation of the interconnects developed under high current testing, while providing a very low contact resistance value. 4 figs.

Carey, P.G.; Thompson, J.B.; Colella, N.J.; Williams, K.A.

1995-11-14T23:59:59.000Z

250

Solar cell array interconnects  

DOE Patents [OSTI]

Electrical interconnects for solar cells or other electronic components using a silver-silicone paste or a lead-tin (Pb-Sn) no-clean fluxless solder cream, whereby the high breakage of thin (<6 mil thick) solar cells using conventional solder interconnect is eliminated. The interconnects of this invention employs copper strips which are secured to the solar cells by a silver-silicone conductive paste which can be used at room temperature, or by a Pb-Sn solder cream which eliminates undesired residue on the active surfaces of the solar cells. Electrical testing using the interconnects of this invention has shown that no degradation of the interconnects developed under high current testing, while providing a very low contact resistance value.

Carey, Paul G. (Mountain View, CA); Thompson, Jesse B. (Brentwood, CA); Colella, Nicolas J. (Livermore, CA); Williams, Kenneth A. (Livermore, CA)

1995-01-01T23:59:59.000Z

251

IEEE COMMUNICATIONS SURVEYS & TUTORIALS, VOL. 14, NO. 3, THIRD QUARTER 2012 799 The Progressive Smart Grid System from Both  

E-Print Network [OSTI]

Smart Grid System from Both Power and Communications Aspects Chun-Hao Lo, Student Member, IEEE as prone to power transmission congestion and consequent failures. Recent efforts in building a smart grid by utilizing the backbone of the prospectively deployed Automatic Meter Reading (AMR), Advanced Meter

Ansari, Nirwan

252

Geothermal Power and Interconnection: The Economics of Getting to Market  

SciTech Connect (OSTI)

This report provides a baseline description of the transmission issues affecting geothermal technologies. The report begins with a comprehensive overview of the grid, how it is planned, how it is used, and how it is paid for. The report then overlays onto this 'big picture' three types of geothermal technologies: conventional hydrothermal systems; emerging technologies such as enhanced engineered geothermal systems (EGS) and geopressured geothermal; and geothermal co-production with existing oil and gas wells. Each category of geothermal technology has its own set of interconnection issues, and these are examined separately for each. The report draws conclusions about each technology's market affinities as defined by factors related to transmission and distribution infrastructure. It finishes with an assessment of selected markets with known geothermal potential, identifying those that offer the best prospects for near-term commercial development and for demonstration projects.

Hurlbut, D.

2012-04-01T23:59:59.000Z

253

ELECTR-5939; No of Pages 6 Please cite this article in press as: A. Sopinka, Variable Energy Resources: VERy Interesting Implications for the Western Interconnect, Electr. J. (2013), http://dx.doi.org/10.1016/j.tej.2013.04.015  

E-Print Network [OSTI]

Resources: VERy Interesting Implications for the Western Interconnect, Electr. J. (2013), http Interconnect Variable energy resources (VERs) are growing in the Western Interconnect. To backstop The North American bulk power system is comprised of four interconnected regions: the Western Interconnect

Pedersen, Tom

254

Visual Analytics for Power Grid Contingency Analysis  

SciTech Connect (OSTI)

Contingency analysis is the process of employing different measures to model scenarios, analyze them, and then derive the best response to remove the threats. This application paper focuses on a class of contingency analysis problems found in the power grid management system. A power grid is a geographically distributed interconnected transmission network that transmits and delivers electricity from generators to end users. The power grid contingency analysis problem is increasingly important because of both the growing size of the underlying raw data that need to be analyzed and the urgency to deliver working solutions in an aggressive timeframe. Failure to do so may bring significant financial, economic, and security impacts to all parties involved and the society at large. The paper presents a scalable visual analytics pipeline that transforms about 100 million contingency scenarios to a manageable size and form for grid operators to examine different scenarios and come up with preventive or mitigation strategies to address the problems in a predictive and timely manner. Great attention is given to the computational scalability, information scalability, visual scalability, and display scalability issues surrounding the data analytics pipeline. Most of the large-scale computation requirements of our work are conducted on a Cray XMT multi-threaded parallel computer. The paper demonstrates a number of examples using western North American power grid models and data.

Wong, Pak C.; Huang, Zhenyu; Chen, Yousu; Mackey, Patrick S.; Jin, Shuangshuang

2014-01-20T23:59:59.000Z

255

Real Time Simulation of Power Grid Disruptions  

SciTech Connect (OSTI)

DOE-OE and DOE-SC workshops (Reference 1-3) identified the key power grid problem that requires insight addressable by the next generation of exascale computing is coupling of real-time data streams (1-2 TB per hour) as the streams are ingested to dynamic models. These models would then identify predicted disruptions in time (2-4 seconds) to trigger the smart grid s self healing functions. This project attempted to establish the feasibility of this approach and defined the scientific issues, and demonstrated example solutions to important smart grid simulation problems. These objectives were accomplished by 1) using the existing frequency recorders on the national grid to establish a representative and scalable real-time data stream; 2) invoking ORNL signature identification algorithms; 3) modeling dynamically a representative region of the Eastern interconnect using an institutional cluster, measuring the scalability and computational benchmarks for a national capability; and 4) constructing a prototype simulation for the system s concept of smart grid deployment. The delivered ORNL enduring capability included: 1) data processing and simulation metrics to design a national capability justifying exascale applications; 2) Software and intellectual property built around the example solutions; 3) demonstrated dynamic models to design few second self-healing.

Chinthavali, Supriya [ORNL; Dimitrovski, Aleksandar D [ORNL; Fernandez, Steven J [ORNL; Groer, Christopher S [ORNL; Nutaro, James J [ORNL; Olama, Mohammed M [ORNL; Omitaomu, Olufemi A [ORNL; Shankar, Mallikarjun [ORNL; Spafford, Kyle L [ORNL; Vacaliuc, Bogdan [ORNL

2012-11-01T23:59:59.000Z

256

Impact of Wind Shear and Tower Shadow Effects on Power System with Large Scale Wind Power  

E-Print Network [OSTI]

@et.aau.dk, csu@et.aau.dk, zch@et.aau.dk Abstract ­ Grid connected wind turbines are fluctuating power sources due on the power system small signal stability of wind turbines based on fixed-speed induction generators, doubly two interconnected power systems [9]. The wind power fluctuations produced by grid connected variable

Hu, Weihao

257

Solving systems of linear equations using a grid structural outlook  

E-Print Network [OSTI]

Awwad,A.M. Al-Ayyoub,A. Ould-Khaoua,M. Day,K. Proceedings 13th IASTED International Conference Parallel and Distributed Computing and Systems (PDCS 2001), Anaheim, California, August 21-24, 2001. pp 365-369 CSREA Press

Awwad, A.M.; Al-Ayyoub, A.; Ould-Khaoua, M.

258

Assessment of Industrial Load for Demand Response across Western Interconnect  

SciTech Connect (OSTI)

Demand response (DR) has the ability to both increase power grid reliability and potentially reduce operating system costs. Understanding the role of demand response in grid modeling has been difficult due to complex nature of the load characteristics compared to the modeled generation and the variation in load types. This is particularly true of industrial loads, where hundreds of different industries exist with varying availability for demand response. We present a framework considering industrial loads for the development of availability profiles that can provide more regional understanding and can be inserted into analysis software for further study. The developed framework utilizes a number of different informational resources, algorithms, and real-world measurements to perform a bottom-up approach in the development of a new database with representation of the potential demand response resource in the industrial sector across the U.S. This tool houses statistical values of energy and demand response (DR) potential by industrial plant and geospatially locates the information for aggregation for different territories without proprietary information. This report will discuss this framework and the analyzed quantities of demand response for Western Interconnect (WI) in support of evaluation of the cost production modeling with power grid modeling efforts of demand response.

Alkadi, Nasr E [ORNL; Starke, Michael R [ORNL; Ma, Ookie [United States Department of Energy (DOE), Office of Efficiency and Renewable Energy (EERE)

2013-11-01T23:59:59.000Z

259

2014 Smart Grid System Report (August 2014) | 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 Delicious RankCombustionImprovement3 Beryllium-Associated Worker2014 House Nuclear CleanupProfileSystem Report (August

260

Sandia National Laboratories: SMART Grid  

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

Energy Storage Safety Workshop On April 7, 2014, in Capabilities, CINT, Distribution Grid Integration, Energy, Energy Storage, Energy Storage Systems, Facilities, Grid...

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


261

NREL Smart Grid Projects  

SciTech Connect (OSTI)

Although implementing Smart Grid projects at the distribution level provides many advantages and opportunities for advanced operation and control, a number of significant challenges must be overcome to maintain the high level of safety and reliability that the modern grid must provide. For example, while distributed generation (DG) promises to provide opportunities to increase reliability and efficiency and may provide grid support services such as volt/var control, the presence of DG can impact distribution operation and protection schemes. Additionally, the intermittent nature of many DG energy sources such as photovoltaics (PV) can present a number of challenges to voltage regulation, etc. This presentation provides an overview a number of Smart Grid projects being performed by the National Renewable Energy Laboratory (NREL) along with utility, industry, and academic partners. These projects include modeling and analysis of high penetration PV scenarios (with and without energy storage), development and testing of interconnection and microgrid equipment, as well as the development and implementation of advanced instrumentation and data acquisition used to analyze the impacts of intermittent renewable resources. Additionally, standards development associated with DG interconnection and analysis as well as Smart Grid interoperability will be discussed.

Hambrick, J.

2012-01-01T23:59:59.000Z

262

Optimal Power System and Grid Interface Design Considerations for the CLICs Klystron Modulators  

E-Print Network [OSTI]

The Compact Linear Collider (CLIC) is an electron-positron collider under study at CERN with the aim to explore the next generation of high precision/high energy particles physics. The CLIC’s drive beams will be accelerated by approximately 1300 klystrons, requiring highly efficient and controllable solid state capacitor discharge modulators. Capacitor charger specifications include the requirement to mask the pulsed effect of the load from the utility grid, ensure maximum power quality, control the derived DC voltage precisely (to maximize accuracy for the modulators being implemented), and achieve high efficiency and operability of the overall power system. This paper presents the work carried out on the power system interface for the CLIC facility. In particular it discusses the challenges on the utility interface and analysis of the grid interface converters with regards to required functionality, efficiency, and control methodologies.

Marija, Jankovic; Jon, Clare; Pat, Wheeler; Davide, Aguglia

2015-01-01T23:59:59.000Z

263

A Multi-layer, Hierarchical Information Management System for the Smart Grid  

SciTech Connect (OSTI)

This paper presents the modeling approach, methodologies, and initial results of setting up a multi-layer, hierarchical information management system (IMS) for the smart grid. The IMS allows its users to analyze the data collected by multiple control and communication networks to characterize the states of the smart grid. Abnormal, corrupted, or erroneous measurement data and outliers are detected and analyzed to identify whether they are caused by random equipment failures, unintentional human errors, or deliberate tempering attempts. Data collected from different information networks are crosschecked for data integrity based on redundancy, dependency, correlation, or cross-correlations, which reveal the interdependency between data sets. A hierarchically structured reasoning mechanism is used to rank possible causes of an event to aid the system operators to proactively respond or provide mitigation recommendations to remove or neutralize the threats. The model provides satisfactory performance on identifying the cause of an event and significantly reduces the need of processing myriads of data collected.

Lu, Ning; Du, Pengwei; Paulson, Patrick R.; Greitzer, Frank L.; Guo, Xinxin; Hadley, Mark D.

2011-10-10T23:59:59.000Z

264

SESSION: CYBER-PHYSICAL SYSTEM SECURITY IN A SMART GRID ENVIROMENT 1 Cyber-Security of SCADA Systems  

E-Print Network [OSTI]

SESSION: CYBER-PHYSICAL SYSTEM SECURITY IN A SMART GRID ENVIROMENT 1 Cyber-Security of SCADA of the power network. From another perspective the authors of [7] attempted to quantify the impact of a cyber is to identify the vulnerabilities of these safety critical infrastruc- tures, determine the impact that possible

Johansson, Karl Henrik

265

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

266

Passive microfluidic interconnects  

E-Print Network [OSTI]

Equipment and procedures were developed to test two passive microfluidic interconnect rings held together by the friction forces on the contact surfaces. The second design forms fluid seals by means of thin flared rings ...

Jonnalagadda, Aparna S

2005-01-01T23:59:59.000Z

267

Puerto Rico- Interconnection Standards  

Broader source: Energy.gov [DOE]

In 2007, the Autoridad de Energía Electrica de Puerto Rico (PREPA*) adopted interconnection standards based on the standard contained in the federal Energy Policy Act of 2005. PREPA promulgated...

268

THE MANY MEANS OF "SMART GRID" At Carnegie Mellon, research on the electricity system is being conducted by the campus-wide Electricity Industry  

E-Print Network [OSTI]

THE MANY MEANS OF "SMART GRID" At Carnegie Mellon, research on the electricity system is being seems to have decided that a "smart grid" is what we need to solve the problems of our electric power system. But, what exactly is a "smart grid"? The answer is that it is many different things. Some

McGaughey, Alan

269

Grid Transfer Remark 4.1 Contents of this chapter. Consider a grid with grid size h and the  

E-Print Network [OSTI]

Chapter 4 Grid Transfer Remark 4.1 Contents of this chapter. Consider a grid with grid size h that there might be an iterative method for solving this system efficiently, which uses also coarser grids way between the grids. 2 4.1 The Coarse Grid System and the Residual Equa- tion Remark 4.2 Basic idea

John, Volker

270

Reliability of Electrical Interconnects (Presentation)  

SciTech Connect (OSTI)

This presentation discusses the status of NREL's research on the reliability of electrical interconnects.

Devoto, D.

2014-06-01T23:59:59.000Z

271

Solar energy grid integration systems : final report of the Florida Solar Energy Center Team.  

SciTech Connect (OSTI)

Initiated in 2008, the Solar Energy Grid Integration Systems (SEGIS) program is a partnership involving the U.S. DOE, Sandia National Laboratories, private sector companies, electric utilities, and universities. Projects supported under the program have focused on the complete-system development of solar technologies, with the dual goal of expanding utility-scale penetration and addressing new challenges of connecting large-scale solar installations in higher penetrations to the electric grid. The Florida Solar Energy Center (FSEC), its partners, and Sandia National Laboratories have successfully collaborated to complete the work under the third and final stage of the SEGIS initiative. The SEGIS program was a three-year, three-stage project that include conceptual design and market analysis in Stage 1, prototype development and testing in Stage 2, and moving toward commercialization in Stage 3. Under this program, the FSEC SEGIS team developed a comprehensive vision that has guided technology development that sets one methodology for merging photovoltaic (PV) and smart-grid technologies. The FSEC team's objective in the SEGIS project is to remove barriers to large-scale general integration of PV and to enhance the value proposition of photovoltaic energy by enabling PV to act as much as possible as if it were at the very least equivalent to a conventional utility power plant. It was immediately apparent that the advanced power electronics of these advanced inverters will go far beyond conventional power plants, making high penetrations of PV not just acceptable, but desirable. This report summarizes a three-year effort to develop, validate and commercialize Grid-Smart Inverters for wider photovoltaic utilization, particularly in the utility sector.

Ropp, Michael (Northern Plains Power Technologies, Brookings, SD); Gonzalez, Sigifredo; Schaffer, Alan (Lakeland Electric Utilities, Lakeland, FL); Katz, Stanley (Satcon Technology Corporation, Boston, MA); Perkinson, Jim (Satcon Technology Corporation, Boston, MA); Bower, Ward Isaac; Prestero, Mark (Satcon Technology Corporation, Boston, MA); Casey, Leo (Satcon Technology Corporation, Boston, MA); Moaveni, Houtan (Florida Solar Energy Center of the University of Central Florida, Cocoa, FL); Click, David (Florida Solar Energy Center of the University of Central Florida, Cocoa, FL); Davis, Kristopher (Florida Solar Energy Center of the University of Central Florida, Cocoa, FL); Reedy, Robert (Florida Solar Energy Center of the University of Central Florida, Cocoa, FL); Kuszmaul, Scott S.; Sena-Henderson, Lisa; David, Carolyn; Akhil, Abbas Ali

2012-03-01T23:59:59.000Z

272

CHP: Connecting the Gap between Markets and Utility Interconnection...  

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

Markets and Utility Interconnection and Tariff Practices, 2006 The adoption of combined heat and power (CHP) systems by American industries has made substantial strides in the...

273

Utility Wind Integration Group Distributed Wind/Solar Interconnection Workshop  

Broader source: Energy.gov [DOE]

This two-day workshop will answer your questions about interconnecting wind and solar plants and other distributed generation applications to electric distribution systems while providing insight...

274

MULTILEVEL FIRST-ORDER SYSTEM LEAST SQUARES FOR ELLIPTIC GRID GENERATION  

E-Print Network [OSTI]

to the elliptic grid generation (EGG) equations. Grid generation is usually based on a map between a relatively grid generation using the Winslow generator [12], which allows us to specify the boundary maps generator tends to create smooth grids, with good aspect ratios. The map also tends to control variations

McCormick, Steve

275

Improving Cyber-Security of Smart Grid Systems via Anomaly Detection and Linguistic Domain Knowledge  

SciTech Connect (OSTI)

The planned large scale deployment of smart grid network devices will generate a large amount of information exchanged over various types of communication networks. The implementation of these critical systems will require appropriate cyber-security measures. A network anomaly detection solution is considered in this work. In common network architectures multiple communications streams are simultaneously present, making it difficult to build an anomaly detection solution for the entire system. In addition, common anomaly detection algorithms require specification of a sensitivity threshold, which inevitably leads to a tradeoff between false positives and false negatives rates. In order to alleviate these issues, this paper proposes a novel anomaly detection architecture. The designed system applies the previously developed network security cyber-sensor method to individual selected communication streams allowing for learning accurate normal network behavior models. Furthermore, the developed system dynamically adjusts the sensitivity threshold of each anomaly detection algorithm based on domain knowledge about the specific network system. It is proposed to model this domain knowledge using Interval Type-2 Fuzzy Logic rules, which linguistically describe the relationship between various features of the network communication and the possibility of a cyber attack. The proposed method was tested on experimental smart grid system demonstrating enhanced cyber-security.

Ondrej Linda; Todd Vollmer; Milos Manic

2012-08-01T23:59:59.000Z

276

Modeling Framework and Validation of a Smart Grid and Demand Response System for Wind Power Integration  

SciTech Connect (OSTI)

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.

Broeer, Torsten; Fuller, Jason C.; Tuffner, Francis K.; Chassin, David P.; Djilali, Ned

2014-01-31T23:59:59.000Z

277

A High Performance Computing Network and System Simulator for the Power Grid: NGNS^2  

SciTech Connect (OSTI)

Designing and planing next generation power grid sys- tems composed of large power distribution networks, monitoring and control networks, autonomous generators and consumers of power requires advanced simulation infrastructures. The objective is to predict and analyze in time the behavior of networks of systems for unexpected events such as loss of connectivity, malicious attacks and power loss scenarios. This ultimately allows one to answer questions such as: “What could happen to the power grid if ...”. We want to be able to answer as many questions as possible in the shortest possible time for the largest possible systems. In this paper we present a new High Performance Computing (HPC) oriented simulation infrastructure named Next Generation Network and System Simulator (NGNS2 ). NGNS2 allows for the distribution of a single simulation among multiple computing elements by using MPI and OpenMP threads. NGNS2 provides extensive configuration, fault tolerant and load balancing capabilities needed to simulate large and dynamic systems for long periods of time. We show the preliminary results of the simulator running approximately two million simulated entities both on a 64-node commodity Infiniband cluster and a 48-core SMP workstation.

Villa, Oreste; Tumeo, Antonino; Ciraci, Selim; Daily, Jeffrey A.; Fuller, Jason C.

2012-11-11T23:59:59.000Z

278

Addressing the Challenges of Anomaly Detection for Cyber Physical Energy Grid Systems  

SciTech Connect (OSTI)

The consolidation of cyber communications networks and physical control systems within the energy smart grid introduces a number of new risks. Unfortunately, these risks are largely unknown and poorly understood, yet include very high impact losses from attack and component failures. One important aspect of risk management is the detection of anomalies and changes. However, anomaly detection within cyber security remains a difficult, open problem, with special challenges in dealing with false alert rates and heterogeneous data. Furthermore, the integration of cyber and physical dynamics is often intractable. And, because of their broad scope, energy grid cyber-physical systems must be analyzed at multiple scales, from individual components, up to network level dynamics. We describe an improved approach to anomaly detection that combines three important aspects. First, system dynamics are modeled using a reduced order model for greater computational tractability. Second, a probabilistic and principled approach to anomaly detection is adopted that allows for regulation of false alerts and comparison of anomalies across heterogeneous data sources. Third, a hierarchy of aggregations are constructed to support interactive and automated analyses of anomalies at multiple scales.

Ferragut, Erik M [ORNL; Laska, Jason A [ORNL; Melin, Alexander M [ORNL; Czejdo, Bogdan [ORNL

2013-01-01T23:59:59.000Z

279

The Development of a Smart Distribution Grid Testbed for Integrated Information Management Systems  

SciTech Connect (OSTI)

This paper presents a smart distribution grid testbed to test or compare designs of integrated information management systems (I2MSs). An I2MS extracts and synthesizes information from a wide range of data sources to detect abnormal system behaviors, identify possible causes, assess the system status, and provide grid operators with response suggestions. The objective of the testbed is to provide a modeling environment with sufficient data sources for the I2MS design. The testbed includes five information layers and a physical layer; it generates multi-layer chronological data based on actual measurement playbacks or simulated data sets produced by the physical layer. The testbed models random hardware failures, human errors, extreme weather events, and deliberate tampering attempts to allow users to evaluate the performance of different I2MS designs. Initial results of I2MS performance tests showed that the testbed created a close-to-real-world environment that allowed key performance metrics of the I2MS to be evaluated

Lu, Ning; Du, Pengwei; Paulson, Patrick R.; Greitzer, Frank L.; Guo, Xinxin; Hadley, Mark D.

2011-01-31T23:59:59.000Z

280

The Development of a Smart Distribution Grid Testbed for Integrated Information Management Systems  

SciTech Connect (OSTI)

This paper presents a smart distribution grid testbed to test or compare designs of integrated information management systems (I2MSs). An I2MS extracts and synthesizes information from a wide range of data sources to detect abnormal system behaviors, identify possible causes, assess the system status, and provide grid operators with response suggestions. The objective of the testbed is to provide a modeling environment with sufficient data sources for the I2MS design. The testbed includes five information layers and a physical layer; it generates multi-layer chronological data based on actual measurement playbacks or simulated data sets produced by the physical layer. The testbed models random hardware failures, human errors, extreme weather events, and deliberate tampering attempts to allow users to evaluate the performance of different I2MS designs. Initial results of I2MS performance tests showed that the testbed created a close-to-real-world environment that allowed key performance metrics of the I2MS to be evaluated.

Lu, Ning; Du, Pengwei; Paulson, Patrick R.; Greitzer, Frank L.; Guo, Xinxin; Hadley, Mark D.

2011-07-28T23:59:59.000Z

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


281

Applications (Grid Tools)  

E-Print Network [OSTI]

Grid Fabric Software Grid Applications Core Grid Middleware User-Level Middleware (Grid Tools) !"# $ %& ' ( ) * #& + '& ' , - . / # ) ) 0 # * 1 PDB CDB Grid Fabric Hardware &+ '' + ) , '1 '1 ' % - * # ( Grid Fabric Software Grid Applications Core Grid Middleware User-Level Middleware (Grid Tools) !"# $ %& ' ( ) * #& + '& ' , - . / # ) ) 0

Buyya, Rajkumar

282

Assessment and Recommendations Overcoming in Short-Term Grid System Regulatory  

E-Print Network [OSTI]

Intelligent Europe (EIE) DG-Grid Report D2 October 2005 #12;Acknowledgement This document is a result.dg-grid.org 2 #12;3 #12;4 #12;Contents Acknowledgement

283

Capillary interconnect device  

DOE Patents [OSTI]

An interconnecting device for connecting a plurality of first fluid-bearing conduits to a corresponding plurality of second fluid-bearing conduits thereby providing fluid communication between the first fluid-bearing conduits and the second fluid-bearing conduits. The device includes a manifold and one or two ferrule plates that are held by compressive axial forces.

Renzi, Ronald F

2013-11-19T23:59:59.000Z

284

VLSI interconnect Avinoam Kolodny  

E-Print Network [OSTI]

1000 10000 100000 Length [um] Power Local total Global total TOTAL globallocal Power Distribution by Wirelength · Total Dynamic Power · Global clock ­ not included · Local signals nets = 66% · Global signals global signals Total dynamic power (Gate, Diffusion and Interconnect) local clock global signals global

Kolodny, Avinoam

285

Transactive Controls: A Market-Based GridWiseTM Controls for Building Systems  

SciTech Connect (OSTI)

This paper discusses the advantages of a market-based controls program developed for the GridWise program.

Katipamula, Srinivas; Chassin, David P.; Hatley, Darrel D.; Pratt, Robert G.; Hammerstrom, Donald J.

2006-07-31T23:59:59.000Z

286

Energy Storage Systems Considerations for Grid-Charged Hybrid Electric Vehicles: Preprint  

SciTech Connect (OSTI)

This paper calculates battery power and energy requirements for grid-charged hybrid electric vehicles (HEVs) with different operating strategies.

Markel, T.; Simpson, A.

2005-09-01T23:59:59.000Z

287

Performance of utility grid-tied photovoltaic systems in the northern United States  

SciTech Connect (OSTI)

Wisconsin Public Service Corporation (WPSC), a medium sized-investor owned electric and natural gas utility serving northeast Wisconsin, installed two roof-top, grid-tied photovoltaic systems in 1993. These systems were part of an Environmental Protection Agency power plant emission mitigation study coordinated by Ascension Technology, Inc. A 12-Kw commercial roof-top unit and a 4-Kw residential roof-top unit were installed. WPSC has extensively studied the 4-Kw residential roof-top unit to gather information for offering a PV-Friendly Leasing program to residential customers in 1996. This paper will discuss the results of this evaluation in the areas of Demand Side Management, System Peak Shaving, Targeted Area Planning. Power Plant Emission Reductions, and Overall Performance.

DeLaune, J.L. [Wisconsin Public Service Corp., Green Bay, WI (United States); Bircher, C.L. [Synergic Resources Corp., Green Bay, WI (United States)

1995-10-01T23:59:59.000Z

288

Reaching Grid Parity Using BP Solar Crystalline Silicon Technology: A Systems Class Application  

SciTech Connect (OSTI)

The primary target market for this program was the residential and commercial PV markets, drawing on BP Solar's premium product and service offerings, brand and marketing strength, and unique routes to market. These two markets were chosen because: (1) in 2005 they represented more than 50% of the overall US PV market; (2) they are the two markets that will likely meet grid parity first; and (3) they are the two market segments in which product development can lead to the added value necessary to generate market growth before reaching grid parity. Federal investment in this program resulted in substantial progress toward the DOE TPP target, providing significant advancements in the following areas: (1) Lower component costs particularly the modules and inverters. (2) Increased availability and lower cost of silicon feedstock. (3) Product specifically developed for residential and commercial applications. (4) Reducing the cost of installation through optimization of the products. (5) Increased value of electricity in mid-term to drive volume increases, via the green grid technology. (6) Large scale manufacture of PV products in the US, generating increased US employment in manufacturing and installation. To achieve these goals BP Solar assembled a team that included suppliers of critical materials, automated equipment developers/manufacturers, inverter and other BOS manufacturers, a utility company, and University research groups. The program addressed all aspects of the crystalline silicon PV business from raw materials (particularly silicon feedstock) through installation of the system on the customers site. By involving the material and equipment vendors, we ensured that supplies of silicon feedstock and other PV specific materials like encapsulation materials (EVA and cover glass) will be available in the quantities required to meet the DOE goals of 5 to 10 GW of installed US PV by 2015 and at the prices necessary for PV systems to reach grid parity in 2015. This final technical report highlights the accomplishments of the BP Solar technical team from 2006 to the end of the project in February 2010. All the main contributors and team members are recognized for this accomplishment and their endeavors are recorded in the twelve main tasks described here.

Cunningham, Daniel W; Wohlgemuth, John; Carlson, David E; Clark, Roger F; Gleaton, Mark; Posbic, John P; Zahler, James

2010-12-06T23:59:59.000Z

289

1068 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 11, NO. 6, DECEMBER 2003 Equivalent-Circuit Interconnect Modeling Based on  

E-Print Network [OSTI]

-chip long interconnects that are represented as distributed RLC transmission lines. The proposed delay model transmission line model, equivalent circuit, interconnect modeling, passivity, transient simulation. I as distributed RLC transmission lines. Manuscript received December 3, 2002. This work was supported in part

Mazumder, Pinaki

290

THE ANALYSYS OF INFORMATION IMPACTS IN COORDINATING DEFENCE AGAINST MALICIOUS ATTACKS FOR INTERCONNECTED  

E-Print Network [OSTI]

FOR INTERCONNECTED POWER SYSTEMS Ettore Bompard George Gross Roberto Napoli Fei Xue Politecnico di Torino University) in an interconnected power system to counteract such attacks has become an important problem. This paper presents to the interconnected system operators on the outcomes of the decision making process under attack. A 34-buses test

Gross, George

291

Three-phase power conversion system for utility-interconnected PV applications. Phase 1 technical progress report, 1 October 1995--17 April 1997  

SciTech Connect (OSTI)

This report describes work performed by Omnion Power Corporation under Phase 1 of a two-phase subcontract. During this phase, Omnion researchers: designed an advanced product specification to guide prototype design and development; analyzed field failure data with Omnion`s hard-switched insulated-Gate Bipolar Transistor technology hardware to better understand where design improvements were needed; presented and reviewed product specifications with key customers/users; drafted a working product specification to serve as a baseline in developing the new power conversion system; developed the core-resonant converter technology in conjunction with Soft Switching Technologies Corp.; designed a 100-kW prototype power conversion system; designed a prototype system package; initiated interaction with vendors to optimize component selection and specifications; initiated the preparation of design documentation; built the prototype core-resonant converter and initiated preliminary testing; and initiated the assembly of a 1-kW prototype power conversion system. This work has demonstrated the potential of the soft-switching resonant DC link (RDCL) inverter and its application to a three-phase utility-interconnected PV power conversion system. The RDCL inverter has demonstrated its advantage over hard-switching pulse-width modulated inverters in terms of efficiency and audible noise. With proper package design and manufacturing process design and implementation, the RDCL power conversion system has the potential to be low-cost and reliable with superior performance.

Porter, D.G.; Meyer, H.; Leang, W. [Omnion Power Engineering Corp., East Troy, WI (United States)

1998-02-01T23:59:59.000Z

292

North American Electric Reliability Corporation Interconnections...  

Office of Environmental Management (EM)

North American Electric Reliability Corporation Interconnections North American Electric Reliability Corporation Interconnections Map of the North American Electric Reliability...

293

`Heat pumps in Smart Grids' IEA Annex 42  

E-Print Network [OSTI]

facility Scandinavian interconnections Demand side Response (via smart grid) Industrial Residential.M. Wagener Managing Consultant OPERATING AGENT: #12;GAS HEAT PUMPS COMMERCIAL SECTOR RESEARCH, STRATEGY AUTOMATION HEAT PUMPS DOMESTIC AND COMMERCIAL BUILDINGS WORKING GROUP THERMAL DRIVEN HEAT PUMPS TARGET

Oak Ridge National Laboratory

294

Public Response to Residential Grid-Tied PV Systems in Colorado: A Qualitative Market Assessment  

SciTech Connect (OSTI)

The early adopters of residential grid-tied photovoltaics (PV) have complex motivations to pay today's costs, including altruistic, environmental, and financial reasons. Focused interviews were conducted with a self-selected purposive sample interested in purchasing 2-kW or 3-kW PV systems with an installed cost of $8,000 to $12,000. The sample tended to be men or married couples ranging in age from their early thirties to their mid-eighties; professionals, managers, or small business owners; relatively financially secure, with experience with energy efficiency and renewable energy. Product attributes they preferred were net metering, warranties, guarantees, utility financing, maintenance, an option to own or lease, a battery option, and an aesthetically pleasing system. Potential PV customers needed more information before making a purchase decision.

Farhar, B. C.; Buhrmann, J.

1998-07-01T23:59:59.000Z

295

Sandia National Laboratories: How a Grid Manager Meets Demand...  

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

to meet peak loads. Comments are closed. Advanced Electric Systems Integrating Renewable Energy into the Electric Grid Why is Grid Synchronization Important? How a Grid Manager...

296

Design and implementation of a large integrated crossbar switch for a 256 x 256 x 8 interconnection network  

E-Print Network [OSTI]

is determined by a detailed yield analysis. Index Terms-Crossbar switch 7 buffer, delay, interconnection networks, packet, clock cycle, arbitration, performance, priority, yield analysis, latch, decoder, packaging, ball grid array....

Naik, Rajeshwar

1995-01-01T23:59:59.000Z

297

Updating Small Generator Interconnection Procedures for New Market Conditions  

SciTech Connect (OSTI)

Federal and state regulators are faced with the challenge of keeping interconnection procedures updated against a backdrop of evolving technology, new codes and standards, and considerably transformed market conditions. This report is intended to educate policymakers and stakeholders on beneficial reforms that will keep interconnection processes efficient and cost-effective while maintaining a safe and reliable power system.

Coddington, M.; Fox, K.; Stanfield, S.; Varnado, L.; Culley, T.; Sheehan, M.

2012-12-01T23:59:59.000Z

298

Secure Cryptographic Key Management System (CKMS) Considerations for Smart Grid Devices  

SciTech Connect (OSTI)

In this paper, we examine some unique challenges associated with key management in the Smart Grid and concomitant research initiatives: 1) effectively model security requirements and their implementations, and 2) manage keys and key distribution for very large scale deployments such as Smart Meters over a long period of performance. This will set the stage to: 3) develop innovative, low cost methods to protect keying material, and 4) provide high assurance authentication services. We will present our perspective on key management and will discuss some key issues within the life cycle of a cryptographic key designed to achieve the following: 1) control systems designed, installed, operated, and maintained to survive an intentional cyber assault with no loss of critical function, and 2) widespread implementation of methods for secure communication between remote access devices and control centers that are scalable and cost-effective to deploy.

Abercrombie, Robert K [ORNL] [ORNL; Sheldon, Frederick T [ORNL] [ORNL; Aldridge, Hal [ORNL] [ORNL; Duren, Mike [Sypris Electronics, LLC] [Sypris Electronics, LLC; Ricci, Tracy [Sypris Electronics, LLC] [Sypris Electronics, LLC; Bertino, Elisa [ORNL] [ORNL; Kulatunga, Athula [Purdue University] [Purdue University; Navaratne, Uditha Sudheera [Purdue University] [Purdue University

2011-01-01T23:59:59.000Z

299

QCD Interconnection Studies at Linear Colliders  

E-Print Network [OSTI]

Heavy objects like the W, Z and t are short-lived compared with typical hadronization times. When pairs of such particles are produced, the subsequent hadronic decay systems may therefore become interconnected. We study such potential effects at Linear Collider energies.

Valery A. Khoze; Torbjörn Sjöstrand

1999-12-10T23:59:59.000Z

300

Cyber Security & Smart Grid  

E-Print Network [OSTI]

Cyber Security & Smart Grid Jonathan Shapiro Texas Institute The Clean Air Through Energy Efficiency (CATEE) Conference Cyber Security & Smart Grid ESL-KT-11-11-23 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011 Cyber Security and The Smart... and communication protocols. ESL-KT-11-11-23 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011 Smart Grid Systems ?Current Cyber Security Issues ? Advanced Metering Infrastructure (AMI) Security ? The wireless devices are used in the smart meters located...

Shapiro, J.

2011-01-01T23:59:59.000Z

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


301

Solar energy potential atlas for planning energy system off-grid electrification in the Republic of Djibouti  

E-Print Network [OSTI]

1 Solar energy potential atlas for planning energy system off-grid electrification in the Republic solar resource can therefore be an interesting mean to produce energy where it is consumed. The aimWh/m². Furthermore, the solar radiation reaching Djibouti corresponded to 20 000 times the total yearly energy

Boyer, Edmond

302

Sandia National Laboratories: Distribution Grid Integration  

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

Systems Symposium On April 15, 2014, in Concentrating Solar Power, Distribution Grid Integration, Energy, Facilities, Grid Integration, News, News & Events, Photovoltaic,...

303

Real-space grids and the Octopus code as tools for the development of new simulation approaches for electronic systems  

E-Print Network [OSTI]

Real-space grids are a powerful alternative for the simulation of electronic systems. One of the main advantages of the approach is the flexibility and simplicity of working directly in real space where the different fields are discretized on a grid, combined with competitive numerical performance and great potential for parallelization. These properties constitute a great advantage at the time of implementing and testing new physical models. Based on our experience with the Octopus code, in this article we discuss how the real-space approach has allowed for the recent development of new ideas for the simulation of electronic systems. Among these applications are approaches to calculate response properties, modeling of photoemission, optimal control of quantum systems, simulation of plasmonic systems, and the exact solution of the Schr\\"odinger equation for low-dimensionality systems.

Andrade, Xavier; De Giovannini, Umberto; Larsen, Ask Hjorth; Oliveira, Micael J T; Alberdi-Rodriguez, Joseba; Varas, Alejandro; Theophilou, Iris; Helbig, Nicole; Verstraete, Matthieu; Stella, Lorenzo; Nogueira, Fernando; Aspuru-Guzik, Alán; Castro, Alberto; Marques, Miguel A L; Rubio, Ángel

2015-01-01T23:59:59.000Z

304

GSA-Utility Interconnection Agreements  

Broader source: Energy.gov [DOE]

Presentation—given at at the Fall 2012 Federal Utility Partnership Working Group (FUPWG) meeting—covers the General Service Administration's (GSA's) utility interconnection agreements.

305

Interconnection Agreements for Onsite Generation  

Broader source: Energy.gov [DOE]

Presentation covers Interconnection Agreements for Onsite Generation and is given at the Spring 2011 Federal Utility Partnership Working Group (FUPWG) meeting.

306

Interconnection Standards for Small Generators  

Broader source: Energy.gov [DOE]

The Federal Energy Regulatory Commission (FERC) adopted "small generator" interconnection standards for distributed energy resources up to 20 megawatts (MW) in capacity in May 2005.* The FERC's...

307

Smart Grid  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearchScheduled System Highlights SuccessSmart Grid Pages default

308

Stability of elastic grid shells  

E-Print Network [OSTI]

The elastic grid shell is a solution that combines double curvature and ease of mounting. This structural system, based on the deformation of an initially at grid without shear stiffness was invented more than fifty years ...

Mesnil, Romain, M. Eng. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

309

Challenges facing production grids  

SciTech Connect (OSTI)

Today's global communities of users expect quality of service from distributed Grid systems equivalent to that their local data centers. This must be coupled to ubiquitous access to the ensemble of processing and storage resources across multiple Grid infrastructures. We are still facing significant challenges in meeting these expectations, especially in the underlying security, a sustainable and successful economic model, and smoothing the boundaries between administrative and technical domains. Using the Open Science Grid as an example, I examine the status and challenges of Grids operating in production today.

Pordes, Ruth; /Fermilab

2007-06-01T23:59:59.000Z

310

Energy and water in the Western and Texas interconnects.  

SciTech Connect (OSTI)

The Department of Energy's Office of Electricity has initiated a $60M program to assist the electric industry in interconnection-level analysis and planning. The objective of this effort is to facilitate the development or strengthening of capabilities in each of the three interconnections serving the lower 48 states of the United States, to prepare analyses of transmission requirements under a broad range of alternative futures and develop long-term interconnection-wide transmission expansion plans. The interconnections are the Western Interconnection, the Eastern Interconnection, and the Texas Interconnection. One element of this program address the support and development of an integrated energy-water Decision Support System (DSS) that will enable planners in the Western and Texas Interconnections to analyze the potential implications of water stress for transmission and resource planning (the Eastern Interconnection is not participating in this element). Specific objectives include: (1) Develop an integrated Energy-Water Decision Support System (DSS) that will enable planners in the Western and Texas Interconnections to analyze the potential implications of water stress for transmission and resource planning. (2) Pursue the formulation and development of the Energy-Water DSS through a strongly collaborative process between members of this proposal team and the Western Electricity Coordinating Council (WECC), Western Governors Association (WGA), the Electric Reliability Council of Texas (ERCOT) and their associated stakeholder teams. (3) Exercise the Energy-Water DSS to investigate water stress implications of the transmission planning scenarios put forward by WECC, WGA, and ERCOT. The goals of this project are: (1) Develop an integrated Energy-Water Decision Support System (DSS) that will enable planners to analyze the potential implications of water stress for transmission and resource planning. (2) Pursue the formulation and development of the Energy-Water DSS through a strongly collaborative process between Western Electricity Coordinating Council, Electric Reliability Council of Texas, Western Governors Association, and Western States Water Council. (3) Exercise the Energy-Water DSS to investigate water transmission planning scenarios.

Tidwell, Vincent Carroll

2010-08-01T23:59:59.000Z

311

Smart Grid Demos Provide Guidance on Integrating DER and RES into the Distribution System with Consideration of Transmission Impacts, Market Signals, and Technologies  

SciTech Connect (OSTI)

This paper describes the overall process for developing a planning criteria and deployment strategy for technology applications under the US Department of Energy (USDOE) and Electric Power Research Institute (EPRI) Smart Grid programs. These activities described provide an understanding of each demonstration and how they individually and as group further industry knowledge of Distributed Energy Resources (DER) and Renewable Energy Sources (RES) impact the grid and how the distribution grid can interact with DER and RES in smart ways. Both USDOE through its Renewable and Distributed Systems Integration (RDSI) and EPRI via its Smart Grid Demonstration Program both assess how DER and RES can be integrated and operated to lower the carbon footprint.

Kueck, John D [ORNL] [ORNL; Hamilton, Stephanie [Electric Power Research Institute (EPRI)] [Electric Power Research Institute (EPRI); Smith, Merrill [U.S. Department of Energy] [U.S. Department of Energy

2010-01-01T23:59:59.000Z

312

The Earth System Grid Federation: An Open Infrastructure for Access to Distributed Geo-Spatial Data  

SciTech Connect (OSTI)

The Earth System Grid Federation (ESGF) is a multi-agency, international collaboration that aims at developing the software infrastructure needed to facilitate and empower the study of climate change on a global scale. The ESGF s architecture employs a system of geographically distributed peer nodes, which are independently administered yet united by the adoption of common federation protocols and application programming interfaces (APIs). The cornerstones of its interoperability are the peer-to-peer messaging that is continuously exchanged among all nodes in the federation; a shared architecture and API for search and discovery; and a security infrastructure based on industry standards (OpenID, SSL, GSI and SAML). The ESGF software is developed collaboratively across institutional boundaries and made available to the community as open source. It has now been adopted by multiple Earth science projects and allows access to petabytes of geophysical data, including the entire model output used for the next international assessment report on climate change (IPCC-AR5) and a suite of satellite observations (obs4MIPs) and reanalysis data sets (ANA4MIPs).

Cinquini, Luca [Jet Propulsion Laboratory, Pasadena, CA; Crichton, Daniel [Jet Propulsion Laboratory, Pasadena, CA; Miller, Neill [Argonne National Laboratory (ANL); Mattmann, Chris [Jet Propulsion Laboratory, Pasadena, CA; Harney, John F [ORNL; Shipman, Galen M [ORNL; Wang, Feiyi [ORNL; Bell, Gavin [Lawrence Livermore National Laboratory (LLNL); Drach, Bob [Lawrence Livermore National Laboratory (LLNL); Ananthakrishnan, Rachana [Argonne National Laboratory (ANL); Pascoe, Stephen [STFC Rutherford Appleton Laboratory, NCAS/BADC; Kershaw, Philip [STFC Rutherford Appleton Laboratory, NCAS/BADC; Gonzalez, Estanislao [German Climate Computing Center; Fiore, Sandro [Euro-Mediterranean Center on Climate Change; Schweitzer, Roland [Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration; Danvil, Sebastian [Institut Pierre Simon Laplace (IPSL), Des Sciences de L'Environnement; Morgan, Mark [Institut Pierre Simon Laplace (IPSL), Des Sciences de L'Environnement

2012-01-01T23:59:59.000Z

313

The Earth System Grid Federation: An Open Infrastructure for Access to Distributed Geospatial Data  

SciTech Connect (OSTI)

The Earth System Grid Federation (ESGF) is a multi-agency, international collaboration that aims at developing the software infrastructure needed to facilitate and empower the study of climate change on a global scale. The ESGF s architecture employs a system of geographically distributed peer nodes, which are independently administered yet united by the adoption of common federation protocols and application programming interfaces (APIs). The cornerstones of its interoperability are the peer-to-peer messaging that is continuously exchanged among all nodes in the federation; a shared architecture and API for search and discovery; and a security infrastructure based on industry standards (OpenID, SSL, GSI and SAML). The ESGF software is developed collaboratively across institutional boundaries and made available to the community as open source. It has now been adopted by multiple Earth science projects and allows access to petabytes of geophysical data, including the entire model output used for the next international assessment report on climate change (IPCC-AR5) and a suite of satellite observations (obs4MIPs) and reanalysis data sets (ANA4MIPs).

Ananthakrishnan, Rachana [Argonne National Laboratory (ANL); Bell, Gavin [Lawrence Livermore National Laboratory (LLNL); Cinquini, Luca [Jet Propulsion Laboratory, Pasadena, CA; Crichton, Daniel [Jet Propulsion Laboratory, Pasadena, CA; Danvil, Sebastian [Institut Pierre Simon Laplace (IPSL), Des Sciences de L'Environnement; Drach, Bob [Lawrence Livermore National Laboratory (LLNL); Fiore, Sandro [Euro-Mediterranean Center on Climate Change; Gonzalez, Estanislao [German Climate Computing Center; Harney, John F [ORNL; Mattmann, Chris [Jet Propulsion Laboratory, Pasadena, CA; Kershaw, Philip [STFC Rutherford Appleton Laboratory, NCAS/BADC; Miller, Neill [Argonne National Laboratory (ANL); Morgan, Mark [Institut Pierre Simon Laplace (IPSL), Des Sciences de L'Environnement; Pascoe, Stephen [STFC Rutherford Appleton Laboratory, NCAS/BADC; Schweitzer, Roland [Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration; Shipman, Galen M [ORNL; Wang, Feiyi [ORNL

2013-01-01T23:59:59.000Z

314

Grid Integration  

SciTech Connect (OSTI)

Summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its grid integration subprogram.

Not Available

2008-09-01T23:59:59.000Z

315

Process for electrically interconnecting electrodes  

DOE Patents [OSTI]

Electrical interconnects for solar cells or other electronic components using a silver-silicone paste or a lead-tin (Pb--Sn) no-clean fluxless solder cream, whereby the high breakage of thin (<6 mil thick) solar cells using conventional solder interconnect is eliminated. The interconnects of this invention employs copper strips which are secured to the solar cells by a silver-silicone conductive paste which can be used at room temperature, or by a Pb--Sn solder cream which eliminates undesired residue on the active surfaces of the solar cells. Electrical testing using the interconnects of this invention has shown that no degradation of the interconnects developed under high current testing, while providing a very low contact resistance value.

Carey, Paul G. (Mountain View, CA); Thompson, Jesse B. (Brentwood, CA); Colella, Nicolas J. (Livermore, CA); Williams, Kenneth A. (Livermore, CA)

2002-01-01T23:59:59.000Z

316

An economic analysis of grid-connected residential solar photovoltaic power systems  

E-Print Network [OSTI]

The question of the utility grid-connected residential market for photovoltaics is examined from a user-ownership perspective. The price is calculated at which the user would be economically indifferent between

Carpenter, Paul R.

317

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 these activities. Specifically, » power system equipment is expensive and has a high knowledge barrier

318

Mini-Grid Renewable Energy Systems Case Studies | 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 Office of InspectorConcentrating Solar Powerstories onFocus Area Energy Efficiency,Grid RenewableMini-Grid Renewable

319

An Advanced Platform for Development and Evaluation of Grid Interconnection Systems Using Hardware-in-the-Loop (Poster), NREL (National Renewable Energy Laboratory)  

Office of Scientific and Technical Information (OSTI)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: Crystal structureComposite JC-118794Argonne NationalAUTHORSAlgal

320

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

Open Energy Info (EERE)

Grid Projects Smart Grid Projects in Europe Smart Grid Projects - Integrated System Smart Grid Projects - Smart Meter and AMI Smart Grid Projects - Grid Automation Distribution...

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


321

Energy scalability of on-chip interconnection networks  

E-Print Network [OSTI]

On-chip interconnection networks (OCN) such as point-to-point networks and buses form the communication backbone in multiprocessor systems-on-a-chip, multicore processors, and tiled processors. OCNs consume significant ...

Konstantakopoulos, Theodoros K., 1977-

2007-01-01T23:59:59.000Z

322

DOE SciDAC's Earth System Grid Center for Enabling Technologies Final Report  

SciTech Connect (OSTI)

The mission of the Earth System Grid Federation (ESGF) is to provide the worldwide climate-research community with access to the data, information, model codes, analysis tools, and intercomparison capabilities required to make sense of enormous climate data sets. Its specific goals are to (1) provide an easy-to-use and secure web-based data access environment for data sets; (2) add value to individual data sets by presenting them in the context of other data sets and tools for comparative analysis; (3) address the specific requirements of participating organizations with respect to bandwidth, access restrictions, and replication; (4) ensure that the data are readily accessible through the analysis and visualization tools used by the climate research community; and (5) transfer infrastructure advances to other domain areas. For the ESGF, the U.S. Department of Energy's (DOE's) Earth System Grid Center for Enabling Technologies (ESG-CET) team has led international development and delivered a production environment for managing and accessing ultra-scale climate data. This production environment includes multiple national and international climate projects (such as the Community Earth System Model and the Coupled Model Intercomparison Project), ocean model data (such as the Parallel Ocean Program), observation data (Atmospheric Radiation Measurement Best Estimate, Carbon Dioxide Information and Analysis Center, Atmospheric Infrared Sounder, etc.), and analysis and visualization tools, all serving a diverse user community. These data holdings and services are distributed across multiple ESG-CET sites (such as ANL, LANL, LBNL/NERSC, LLNL/PCMDI, NCAR, and ORNL) and at unfunded partner sites, such as the Australian National University National Computational Infrastructure, the British Atmospheric Data Centre, the National Oceanic and Atmospheric Administration Geophysical Fluid Dynamics Laboratory, the Max Planck Institute for Meteorology, the German Climate Computing Centre, the National Aeronautics and Space Administration Jet Propulsion Laboratory, and the National Oceanic and Atmospheric Administration. The ESGF software is distinguished from other collaborative knowledge systems in the climate community by its widespread adoption, federation capabilities, and broad developer base. It is the leading source for present climate data holdings, including the most important and largest data sets in the global-climate community, and - assuming its development continues - we expect it to be the leading source for future climate data holdings as well. Recently, ESG-CET extended its services beyond data-file access and delivery to include more detailed information products (scientific graphics, animations, etc.), secure binary data-access services (based upon the OPeNDAP protocol), and server-side analysis. The latter capabilities allow users to request data subsets transformed through commonly used analysis and intercomparison procedures. As we transition from development activities to production and operations, the ESG-CET team is tasked with making data available to all users seeking to understand, process, extract value from, visualize, and/or communicate it to others. This ongoing effort, though daunting in scope and complexity, will greatly magnify the value of numerical climate model outputs and climate observations for future national and international climate-assessment reports. The ESG-CET team also faces substantial technical challenges due to the rapidly increasing scale of climate simulation and observational data, which will grow, for example, from less than 50 terabytes for the last Intergovernmental Panel on Climate Change (IPCC) assessment to multiple Petabytes for the next IPCC assessment. In a world of exponential technological change and rapidly growing sophistication in climate data analysis, an infrastructure such as ESGF must constantly evolve if it is to remain relevant and useful. Regretfully, we submit our final report at the end of project funding. To continue to serve the climate-science community, we are

Williams, D N

2011-09-27T23:59:59.000Z

323

Cloud Computing for the Grid: GridControl: A Software Platform to Support the Smart Grid  

SciTech Connect (OSTI)

GENI Project: Cornell University is creating a new software platform for grid operators called GridControl that will utilize cloud computing to more efficiently control the grid. In a cloud computing system, there are minimal hardware and software demands on users. The user can tap into a network of computers that is housed elsewhere (the cloud) and the network runs computer applications for the user. The user only needs interface software to access all of the cloud’s data resources, which can be as simple as a web browser. Cloud computing can reduce costs, facilitate innovation through sharing, empower users, and improve the overall reliability of a dispersed system. Cornell’s GridControl will focus on 4 elements: delivering the state of the grid to users quickly and reliably; building networked, scalable grid-control software; tailoring services to emerging smart grid uses; and simulating smart grid behavior under various conditions.

None

2012-02-08T23:59:59.000Z

324

Exact Coupling Threshold for Structural Transition in Interconnected Networks  

E-Print Network [OSTI]

Interconnected networks are mathematical representation of systems where two or more simple networks are coupled to each other. Depending on the coupling weight between the two components, the interconnected network can function in two regimes: one where the two networks are structurally distinguishable, and one where they are not. The coupling threshold--denoting this structural transition--is one of the most crucial concepts in interconnected networks. Yet, current information about the coupling threshold is limited. This letter presents an analytical expression for the exact value of the coupling threshold and outlines network interrelation implications.

Sahneh, Faryad Darabi; Van Mieghem, Piet

2014-01-01T23:59:59.000Z

325

Smart Grid Overview  

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

S imulator NREL Smart Grid TesHng Power I nfrastructure 11 Monitoring on DistribuLon Transformer Anatolia Subdivision --- SMUD 2kW of PV on each home Modeling System Impacts...

326

Development of Resource Sharing System Components for AliEn Grid Infrastructure  

E-Print Network [OSTI]

The problem of the resource provision, sharing, accounting and use represents a principal issue in the contemporary scientific cyberinfrastructures. For example, collaborations in physics, astrophysics, Earth science, biology and medicine need to store huge amounts of data (of the order of several petabytes) as well as to conduct highly intensive computations. The appropriate computing and storage capacities cannot be ensured by one (even very large) research center. The modern approach to the solution of this problem suggests exploitation of computational and data storage facilities of the centers participating in collaborations. The most advanced implementation of this approach is based on Grid technologies, which enable effective work of the members of collaborations regardless of their geographical location. Currently there are several tens of Grid infrastructures deployed all over the world. The Grid infrastructures of CERN Large Hadron Collider experiments - ALICE, ATLAS, CMS, and LHCb which are exploi...

Harutyunyan, Artem

2010-01-01T23:59:59.000Z

327

Grid Security  

E-Print Network [OSTI]

Sinnott,R.O. National Centre for e-Social Science book, Grid Computing: Technology, Service and Application, CRC Press, November 2008.

Sinnott, R.O.

328

Analysis of interconnect microstrip lines  

E-Print Network [OSTI]

of the return loss of the slot-coupled microstrip dipole. Section C presents two simulations of the return loss on the slot- coupled rectangular patch antenna. A. Interconnect of Microstrip Lines Several circuits with the geometry of Figure 1 were fabricated.... Experimental and Theoretical Results of the Interconnect Two circuits were designed and fabricated. Each circuit consists of two substrates as shown in Figure 9. One substrate has an open microstrip line etched in one side and an aperture etched...

Luong, Giam-Minh

1992-01-01T23:59:59.000Z

329

PJM Interconnection, LLC Smart Grid Project | 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 Office of InspectorConcentrating Solar Powerstories onFocusOski Energy LLC Place: Reno,PEPCO Energy ServicesProject

330

Connecting to the Grid: A Guide to Distributed Generation Interconnection  

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:YearRound-Up fromDepartmentTieCelebrate Earth Codestheatfor Optimized91 *09 FYIssues, 6th Edition,

331

National Offshore Wind Energy Grid Interconnection Study (NOWEGIS) |  

Office of Environmental Management (EM)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelinesProvedDecemberInitiativesNational Environmental Policy Act (NEPA)Lab DayDepartment of

332

National Offshore Wind Energy Grid Interconnection Study - Executive Summary  

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:Year in3.pdfEnergy HealthCommentsAugust 2012NEVADAEnergyEnergy ImpactDepartment

333

New Report Characterizes Existing Offshore Wind Grid Interconnection  

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:Year in3.pdfEnergy HealthCommentsAugustNationalMarkets withCohenNew Partners forResearch

334

Maturity Model for Advancing Smart Grid Interoperability  

SciTech Connect (OSTI)

Abstract—Interoperability is about the properties of devices and systems to connect and work properly. Advancing interoperability eases integration and maintenance of the resulting interconnection. This leads to faster integration, lower labor and component costs, predictability of projects and the resulting performance, and evolutionary paths for upgrade. When specifications are shared and standardized, competition and novel solutions can bring new value streams to the community of stakeholders involved. Advancing interoperability involves reaching agreement for how things join at their interfaces. The quality of the agreements and the alignment of parties involved in the agreement present challenges that are best met with process improvement techniques. The GridWise® Architecture Council (GWAC) sponsored by the United States Department of Energy is supporting an effort to use concepts from capability maturity models used in the software industry to advance interoperability of smart grid technology. An interoperability maturity model has been drafted and experience is being gained through trials on various types of projects and community efforts. This paper describes the value and objectives of maturity models, the nature of the interoperability maturity model and how it compares with other maturity models, and experiences gained with its use.

Knight, Mark; Widergren, Steven E.; Mater, J.; Montgomery, Austin

2013-10-28T23:59:59.000Z

335

EA-1990: Ridgenose Solar Energy Interconnection Facility, Mohave County, Arizona  

Broader source: Energy.gov [DOE]

DOE’s Western Area Power Administration (Desert Southwest Region) is preparing an EA that will assess the potential environmental impacts of a proposal to interconnect the planned Ridgenose Solar Energy Project to Western’s transmission system. Western’s actions could include constructing less than a mile of new transmission line from the solar facility to an existing substation, constructing an interconnection substation, and adding, moving, or modifying structures.

336

MARTHA: Architecture for Control and Emulation of Power Electronics and Smart Grid Systems  

E-Print Network [OSTI]

conversion; (3) it allows for power flow control between an electric vehicle motor and battery; and (4 conversion technology [1] that enables efficient and fully controllable conversion of electrical power) it enables power grid dynamic stabilization. Power electronics could potentially reduce overall electricity

Devadas, Srinivas

337

EWEC 2006 Scientific Track Advanced Forecast Systems for the Grid Integration of 25 GW  

E-Print Network [OSTI]

forecasts, smoothing effects Abstract The economic success of offshore wind farms in liberalised electricity of offshore wind farms, their electricity production must be known well in advance to allow an efficient Oldenburg, Germany Key words: Offshore wind power, grid integration, short-term prediction, regional

Heinemann, Detlev

338

Implementation of battery energy storage system for the electricity grid in Singapore  

E-Print Network [OSTI]

The market of grid-level electricity storage is growing rapidly, with a predicted market value of 1.6 billion in 2012 and 8.3 billion in 2016. Electrochemical storages such as lead-acid, nickel-cadmium, sodium-sulfur and ...

Wu, Zhenqi, M. Eng. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

339

Grid Reliability////////////////////////// Grid Dependability  

E-Print Network [OSTI]

, confidentiality, etc. Collectively referred as "-ilities" of a system MTBF, MTTF, MTTR, RBD, FTA, FMEA, FMECA

340

Demonstration of a Novel Synchrophasor-based Situational Awareness System: Wide Area Power System Visualization, On-line Event Replay and Early Warning of Grid Problems  

SciTech Connect (OSTI)

Since the large North Eastern power system blackout on August 14, 2003, U.S. electric utilities have spent lot of effort on preventing power system cascading outages. Two of the main causes of the August 14, 2003 blackout were inadequate situational awareness and inadequate operator training In addition to the enhancements of the infrastructure of the interconnected power systems, more research and development of advanced power system applications are required for improving the wide-area security monitoring, operation and planning in order to prevent large- scale cascading outages of interconnected power systems. It is critically important for improving the wide-area situation awareness of the operators or operational engineers and regional reliability coordinators of large interconnected systems. With the installation of large number of phasor measurement units (PMU) and the related communication infrastructure, it will be possible to improve the operators’ situation awareness and to quickly identify the sequence of events during a large system disturbance for the post-event analysis using the real-time or historical synchrophasor data. The purpose of this project was to develop and demonstrate a novel synchrophasor-based comprehensive situational awareness system for control centers of power transmission systems. The developed system named WASA (Wide Area Situation Awareness) is intended to improve situational awareness at control centers of the power system operators and regional reliability coordinators. It consists of following main software modules: • Wide-area visualizations of real-time frequency, voltage, and phase angle measurements and their contour displays for security monitoring. • Online detection and location of a major event (location, time, size, and type, such as generator or line outage). • Near-real-time event replay (in seconds) after a major event occurs. • Early warning of potential wide-area stability problems. The system has been deployed and demonstrated at the Tennessee Valley Authority (TVA) and ISO New England system using real-time synchrophasor data from openPDC. Apart from the software product, the outcome of this project consists of a set of technical reports and papers describing the mathematical foundations and computational approaches of different tools and modules, implementation issues and considerations, lessons learned, and the results of lidation processes.

Rosso, A.

2012-12-31T23:59:59.000Z

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


341

Smart Grid Investments Improve Grid Reliability, Resilience,...  

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

Investments Improve Grid Reliability, Resilience, and Storm Responses (November 2014) Smart Grid Investments Improve Grid Reliability, Resilience, and Storm Responses (November...

342

Interconnection of bundled solid oxide fuel cells  

DOE Patents [OSTI]

A system and method for electrically interconnecting a plurality of fuel cells to provide dense packing of the fuel cells. Each one of the plurality of fuel cells has a plurality of discrete electrical connection points along an outer surface. Electrical connections are made directly between the discrete electrical connection points of adjacent fuel cells so that the fuel cells can be packed more densely. Fuel cells have at least one outer electrode and at least one discrete interconnection to an inner electrode, wherein the outer electrode is one of a cathode and and anode and wherein the inner electrode is the other of the cathode and the anode. In tubular solid oxide fuel cells the discrete electrical connection points are spaced along the length of the fuel cell.

Brown, Michael; Bessette, II, Norman F; Litka, Anthony F; Schmidt, Douglas S

2014-01-14T23:59:59.000Z

343

SMART LIGHTING SYSTEMS ULTIMATE LIGHTING The Smart Lighting  

E-Print Network [OSTI]

(Holistic Integrated Design) · Sensors as or more important than LEDs · Interconnected systems (human, building, grid) · Artistic Design Freedom · Illumination just not white · Fusion of Video and Illumination (Collapsing) Materials Processes Devices Materials & Subsystems Materials & Subsystems Integration Full

Linhardt, Robert J.

344

SMART LIGHTING SYSTEMS ULTIMATE LIGHTING The Smart Lighting  

E-Print Network [OSTI]

Integration (Holistic Integrated Design) · Sensors as important as LEDs · Interconnected systems (human, building, grid) · Artistic Design Freedom · Lighting is Health, Entertainment, Information and Illumination Cost at any brightness · Chip level integrated electronics THE ERC RESEARCH COVERS THE ENTIRE SUPPLY

Linhardt, Robert J.

345

National Assessment of Energy Storage for Grid Balancing and Arbitrage: Phase 1, WECC  

SciTech Connect (OSTI)

To examine the role that energy storage could play in mitigating the impacts of the stochastic variability of wind generation on regional grid operation, the Pacific Northwest National Laboratory (PNNL) examined a hypothetical 2020 grid scenario in which additional wind generation capacity is built to meet renewable portfolio standard targets in the Western Interconnection. PNNL developed a stochastic model for estimating the balancing requirements using historical wind statistics and forecasting error, a detailed engineering model to analyze the dispatch of energy storage and fast-ramping generation devices for estimating size requirements of energy storage and generation systems for meeting new balancing requirements, and financial models for estimating the life-cycle cost of storage and generation systems in addressing the future balancing requirements for sub-regions in the Western Interconnection. Evaluated technologies include combustion turbines, sodium sulfur (Na-S) batteries, lithium ion batteries, pumped-hydro energy storage, compressed air energy storage, flywheels, redox flow batteries, and demand response. Distinct power and energy capacity requirements were estimated for each technology option, and battery size was optimized to minimize costs. Modeling results indicate that in a future power grid with high-penetration of renewables, the most cost competitive technologies for meeting balancing requirements include Na-S batteries and flywheels.

Kintner-Meyer, Michael CW; Balducci, Patrick J.; Colella, Whitney G.; Elizondo, Marcelo A.; Jin, Chunlian; Nguyen, Tony B.; Viswanathan, Vilayanur V.; Zhang, Yu

2012-06-01T23:59:59.000Z

346

U.S. Virgin Islands Establishes Interconnection Standards to Clear the Way for Grid Interconnection  

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:YearRound-Up from theDepartment of Dept. of Energy, Office ofNuclear WeaponstoU.S. ThreatenedU.S.

347

Accelerating development of advanced inverters : evaluation of anti-islanding schemes with grid support functions and preliminary laboratory demonstration.  

SciTech Connect (OSTI)

The high penetration of utility interconnected photovoltaic (PV) systems is causing heightened concern over the effect that variable renewable generation will have on the electrical power system (EPS). These concerns have initiated the need to amend the utility interconnection standard to allow advanced inverter control functionalities that provide: (1) reactive power control for voltage support, (2) real power control for frequency support and (3) better tolerance of grid disturbances. These capabilities are aimed at minimizing the negative impact distributed PV systems may have on EPS voltage and frequency. Unfortunately, these advanced control functions may interfere with island detection schemes, and further development of advanced inverter functions requires a study of the effect of advanced functions on the efficacy of antiislanding schemes employed in industry. This report summarizes the analytical, simulation and experimental work to study interactions between advanced inverter functions and anti-islanding schemes being employed in distributed PV systems.

Neely, Jason C.; Gonzalez, Sigifredo; Ropp, Michael [Northern Plains Power Technologies, Brookings, SD] [Northern Plains Power Technologies, Brookings, SD; Schutz, Dustin [Northern Plains Power Technologies, Brookings, SD] [Northern Plains Power Technologies, Brookings, SD

2013-11-01T23:59:59.000Z

348

Nevada Deploys Grid-Connected Electricity from Enhanced Geothermal...  

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

Nevada Deploys Grid-Connected Electricity from Enhanced Geothermal Systems Nevada Deploys Grid-Connected Electricity from Enhanced Geothermal Systems May 16, 2013 - 12:00am Addthis...

349

LED Lighting Off the Grid  

Energy Savers [EERE]

D. & Kammen, D. M. Decentralized energy systems for clean electricity access. Nature Climate Change accepted, in press, (2015). Off-Grid Status Quo : Fuel Based Lighting...

350

Balancing act - BPA grid responds to huge influx of wind power...  

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

successfully interconnected 19 wind farms that cumulatively include more than 1,000 wind turbines to our transmission grid in the last few years and have built fi ve new...

351

FUTURE POWER GRID INITIATIVE Future Power Grid  

E-Print Network [OSTI]

FUTURE POWER GRID INITIATIVE Future Power Grid Control Paradigm OBJECTIVE This project integration & exploit the potential of distributed smart grid assets » Significantly reduce the risk of advanced mathematical models, next- generation simulation and analytics capabilities for the power grid

352

The Adjustable Grid: A Grid-Based Cursor Control Solution using Speech Recognition  

E-Print Network [OSTI]

The Adjustable Grid: A Grid-Based Cursor Control Solution using Speech Recognition Tarif Haque1 of grid-based cursor control systems using speech recognition have been developed. These systems typically overlay a numbered 3x3 grid on the screen and allow the user to recursively drill the cursor down

Gray, Jeffrey G.

353

Introduction to off grid energy options for RE systems | Open Energy  

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 Office of InspectorConcentrating Solar Powerstories on climate compatibleInformation off grid energy options for RE

354

Promise of Solar Energy is Boundless: A Smarter Electric Grid Delivers on that Promise  

SciTech Connect (OSTI)

This brochure summarizes the benefits of a smart electric grid, the Solar Program's Solar Energy Grid Intergration Systems efforts, and the Office of Electricity's "The Smart Grid" booklet.

Not Available

2008-10-01T23:59:59.000Z

355

Smart Grid Integration Laboratory  

SciTech Connect (OSTI)

The initial federal funding for the Colorado State University Smart Grid Integration Laboratory is through a Congressionally Directed Project (CDP), DE-OE0000070 Smart Grid Integration Laboratory. The original program requested in three one-year increments for staff acquisition, curriculum development, and instrumentation â?? all which will benefit the Laboratory. This report focuses on the initial phase of staff acquisition which was directed and administered by DOE NETL/ West Virginia under Project Officer Tom George. Using this CDP funding, we have developed the leadership and intellectual capacity for the SGIC. This was accomplished by investing (hiring) a core team of Smart Grid Systems engineering faculty focused on education, research, and innovation of a secure and smart grid infrastructure. The Smart Grid Integration Laboratory will be housed with the separately funded Integrid Laboratory as part of CSUâ??s overall Smart Grid Integration Center (SGIC). The period of performance of this grant was 10/1/2009 to 9/30/2011 which included one no cost extension due to time delays in faculty hiring. The Smart Grid Integration Laboratoryâ??s focus is to build foundations to help graduate and undergraduates acquire systems engineering knowledge; conduct innovative research; and team externally with grid smart organizations. Using the results of the separately funded Smart Grid Workforce Education Workshop (May 2009) sponsored by the City of Fort Collins, Northern Colorado Clean Energy Cluster, Colorado State University Continuing Education, Spirae, and Siemens has been used to guide the hiring of faculty, program curriculum and education plan. This project develops faculty leaders with the intellectual capacity to inspire its students to become leaders that substantially contribute to the development and maintenance of Smart Grid infrastructure through topics such as: (1) Distributed energy systems modeling and control; (2) Energy and power conversion; (3) Simulation of electrical power distribution system that integrates significant quantities of renewable and distributed energy resources; (4) System dynamic modeling that considers end-user behavior, economics, security and regulatory frameworks; (5) Best practices for energy management IT control solutions for effective distributed energy integration (including security with the underlying physical power systems); (6) Experimental verification of effects of various arrangements of renewable generation, distributed generation and user load types along with conventional generation and transmission. Understanding the core technologies for enabling them to be used in an integrated fashion within a distribution network remains is a benefit to the future energy paradigm and future and present energy engineers.

Wade Troxell

2011-09-30T23:59:59.000Z

356

Development of a 2-D black-oil reservoir simulator using a unique grid-block system  

E-Print Network [OSTI]

The grid orientation effect is a long-standing problem plaguing reservoir simulators that employ finite difference schemes. A rotation of the computational grids yields a substantially different solution under certain circumstances. For example...

Chong, Emeline E

2006-04-12T23:59:59.000Z

357

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 of the power grid will also have to evolve to insure accurate and timely simulations. On the other hand, the software tools available for power grid simulation today are primarily sequential single core programs

358

Off-Grid or Stand-Alone Renewable Energy Systems | 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 Delicious RankCombustion |Energy UsageAUDITVehicles »Exchange VisitorsforDepartment ofNo Fear Act Data NoOakOff-Grid

359

New York Independent System Operator, Smart Grid RFI: Addressing Policy and  

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:Year in3.pdfEnergy HealthCommentsAugustNationalMarketsMillion DOEEnergy WorkingPower Grid

360

Smart Grid Information Security (IS) Functional Requirement  

E-Print Network [OSTI]

It is important to implement safe smart grid environment to enhance people's lives and livelihoods. This paper provides information on smart grid IS functional requirement by illustrating some discussion points to the sixteen identified requirements. This paper introduces the smart grid potential hazards that can be referred as a triggering factor to improve the system and security of the entire grid. The background of smart information infrastructure and the needs for smart grid IS is described with the adoption of hermeneutic circle as methodology. Grid information technology and security-s session discusses that grid provides the chance of a simple and transparent access to different information sources. In addition, the transformation between traditional versus smart grid networking trend and the IS importance on the communication field reflects the criticality of grid IS functional requirement identification is introduces. The smart grid IS functional requirements described in this paper are general and ...

Ling, Amy Poh Ai

2011-01-01T23:59:59.000Z

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


361

Vehicle to Grid Demonstration Project  

SciTech Connect (OSTI)

This report summarizes the activities and accomplishments of a two-year DOE-funded project on Grid-Integrated Vehicles (GIV) with vehicle to grid power (V2G). The project included several research and development components: an analysis of US driving patterns; an analysis of the market for EVs and V2G-capable EVs; development and testing of GIV components (in-car and in-EVSE); interconnect law and policy; and development and filing of patents. In addition, development activities included GIV manufacturing and licensing of technologies developed under this grant. Also, five vehicles were built and deployed, four for the fleet of the State of Delaware, plus one for the University of Delaware fleet.

Willett Kempton; Meryl Gardner; Michael Hidrue; Fouad Kamilev; Sachin Kamboj; Jon Lilley; Rodney McGee; George Parsons; Nat Pearre; Keith Trnka

2010-12-31T23:59:59.000Z

362

Open Automated Demand Response Technologies for Dynamic Pricing and Smart Grid  

E-Print Network [OSTI]

AND SMART GRID The GridWise® interoperability framework [6] was developed to facilitate systems integration and

Ghatikar, Girish

2010-01-01T23:59:59.000Z

363

Towards High Performance Discrete-Event Simulations of Smart Electric Grids  

SciTech Connect (OSTI)

Future electric grid technology is envisioned on the notion of a smart grid in which responsive end-user devices play an integral part of the transmission and distribution control systems. Detailed simulation is often the primary choice in analyzing small network designs, and the only choice in analyzing large-scale electric network designs. Here, we identify and articulate the high-performance computing needs underlying high-resolution discrete event simulation of smart electric grid operation large network scenarios such as the entire Eastern Interconnect. We focus on the simulator's most computationally intensive operation, namely, the dynamic numerical solution for the electric grid state, for both time-integration as well as event-detection. We explore solution approaches using general-purpose dense and sparse solvers, and propose a scalable solver specialized for the sparse structures of actual electric networks. Based on experiments with an implementation in the THYME simulator, we identify performance issues and possible solution approaches for smart grid experimentation in the large.

Perumalla, Kalyan S [ORNL; Nutaro, James J [ORNL; Yoginath, Srikanth B [ORNL

2011-01-01T23:59:59.000Z

364

Scalable Real Time Data Management for Smart Grid  

SciTech Connect (OSTI)

This paper presents GridMW, a scalable and reliable data middleware for smart grids. Smart grids promise to improve the efficiency of power grid systems and reduce green house emissions through incorporating power generation from renewable sources and shaping demand to match the supply. As a result, power grid systems will become much more dynamic and require constant adjustments, which requires analysis and decision making applications to improve the efficiency and reliability of smart grid systems.

Yin, Jian; Kulkarni, Anand V.; Purohit, Sumit; Gorton, Ian; Akyol, Bora A.

2011-12-16T23:59:59.000Z

365

Flexible DER Utility Interface System: Final Report, September 2004--May 2006  

SciTech Connect (OSTI)

In an effort to accelerate deployment of Distributed Energy Resources (DER) such as wind, solar, and conventional backup generators to our nation's electrical grid, Northern Power Systems (NPS), the California Energy Commission (CEC), and the National Renewable Energy Laboratory (NREL) collaborated to create a prototype universal interconnect device called the DER Switch.

Lynch, J.; John, V.; Danial, S. M.; Benedict, E.; Vihinen, I.; Kroposki, B.; Pink, C.

2006-08-01T23:59:59.000Z

366

Semantic-based Grid Resource Discovery and its Integration with the Grid Service Broker  

E-Print Network [OSTI]

1 Semantic-based Grid Resource Discovery and its Integration with the Grid Service Broker Thamarai Chromepet, Chennai ­ 600044, India Email : stselvi@annauniv.edu 2 Grid Computing and Distributed Systems :mohanram@cdacb.ernet.in Abstract: This paper addresses the need of semantic component in the grid

Melbourne, University of

367

Reliability of copper interconnects in integrated circuits  

E-Print Network [OSTI]

As dimensions shrink and current densities increase, the reliability of metal interconnects becomes a serious concern. In copper interconnects, the dominant diffusion path is along the interface between the copper and the ...

Choi, Zung-Sun

2007-01-01T23:59:59.000Z

368

Sandia National Laboratories: Permitting, Inspection, and Interconnect...  

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

Tagged with: Energy * Inspecting * Interconnection * Permitting * photovoltaic * Photovoltaics * PV * Renewable Energy * solar * Solar Energy * Solar Market Transformation *...

369

Intgration oriente service des modles Grid et Multi-Agents  

E-Print Network [OSTI]

/Grid service, Service-oriented architecture, STROBE model, Software engineering, Mixed systems. JFSMA 2006 of a service-oriented approach. The concept of service is clearly at the intersection of GRID and MAS, Interaction, Grid, Intégration agent-Grid, Web/Grid service, Architecture orientée service, modèle STROBE

Paris-Sud XI, Université de

370

Towards a Grid Information Knowledge Base , Marios D. Dikaiakos1  

E-Print Network [OSTI]

Towards a Grid Information Knowledge Base Wei Xing1 , Marios D. Dikaiakos1 , and Rizos Sakellariou2 present our work on building a Grid infor- mation knowledge base, which is a key component of a semantic Grid information system. A Core Grid Ontology (CGO) is developed for build- ing a Grid knowledge base

Pallis, George

371

2014 International Workshop on Grid Simulator Testing | Department...  

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

the second International Workshop on Grid Simulator Testing of Energy Systems and Wind Turbine Powertrains at the Duke Energy Electric Grid Research, Innovations and Development...

372

Computational Needs for the Next Generation Electric Grid Proceedings  

E-Print Network [OSTI]

system planning, renewable energy, smart grids, storage planning projects will become even more critical as the smart grid planning  models.   Some  of  these  objectives  are  not  well  defined,  like  smart?grid 

Birman, Kenneth

2012-01-01T23:59:59.000Z

373

Integrating Grid Services into the Cray XT4 Environment  

E-Print Network [OSTI]

with the system side of the grid work. Before joining NERSC,Franklin login node for grid access. This will simplify thethe feasibility of grid VO based project accounts to share

Cholia, Shreyas

2010-01-01T23:59:59.000Z

374

Assessing the Usefulness of Distributed Measurements in the Smart Grid  

E-Print Network [OSTI]

Kezunovic, M. ; , "Smart Fault Location for Smart Grids,"Smart Grid, IEEE Transactions on , vol.2, no.1, pp.11-22,in Distribution Systems," Smart Grid, IEEE Transactions on ,

Framhein, Theodore Anthony

2012-01-01T23:59:59.000Z

375

Three-Phase Modular Cascaded H-Bridge Multilevel Inverter with Individual MPPT for Grid-Connected Photovoltaic Systems  

SciTech Connect (OSTI)

A three-phase modular cascaded H-bridge multilevel inverter for a grid-connected photovoltaic (PV) system is presented in this paper. To maximize the solar energy extraction of each PV string, an individual maximum power point tracking (MPPT) control scheme is applied, which allows the independent control of each dc-link voltage. PV mismatches may introduce unbalanced power supplied to the three-phase system. To solve this issue, a control scheme with modulation compensation is proposed. The three-phase modular cascaded multilevel inverter prototype has been built. Each H-bridge is connected to a 185 W solar panel. Simulation and experimental results are presented to validate the proposed ideas.

Xiao, Bailu [ORNL; Hang, Lijun [ORNL; Riley, Cameron [University of Tennessee, Knoxville (UTK); Tolbert, Leon M [ORNL; Ozpineci, Burak [ORNL

2013-01-01T23:59:59.000Z

376

Power Smoothing Control in a Grid-Connected Marine Current Turbine System for Compensating  

E-Print Network [OSTI]

similar principles in wind generation systems can be applied in marine current turbine (MCT) systems due

Boyer, Edmond

377

A Discussion Paper circulated by Brunel Institute of Power Systems 15/09/03 Prospects for Grid-Computing in Future Power Networks  

E-Print Network [OSTI]

A Discussion Paper circulated by Brunel Institute of Power Systems 15/09/03 Prospects for Grid-Computing in Future Power Networks Prof. Malcolm Irving and Dr. Gareth Taylor 15 September 2003 Brunel Institute of Power Systems Department of Electronic and Computer Engineering Brunel University Uxbridge, Middlesex

Taylor, Gary

378

NATL Grid Map 50-Meter Grid  

E-Print Network [OSTI]

NATL-east NATL Grid Map 50-Meter Grid Locations in NATL can be specified by reference to a grid intervals. Each gridline intersection ("grid point") is identified by its two gridlines (e.g., E5). Each 50x50-m block formed by the gridlines is identified by the grid point in its northwest corner (e

Slatton, Clint

379

Interconnection networks synthesis and optimization  

E-Print Network [OSTI]

straints when the routing area is 3000 um, 5000 um 6000 umfor the tightest area constraint 3000 um. When ? is 0.8, all3000, 7000 and 11000 as small, moderate and large grid area,

Zhu, Yi

2008-01-01T23:59:59.000Z

380

Flexible interconnects for fuel cell stacks  

DOE Patents [OSTI]

An interconnect that facilitates electrical connection and mechanical support with minimal mechanical stress for fuel cell stacks. The interconnects are flexible and provide mechanically robust fuel cell stacks with higher stack performance at lower cost. The flexible interconnects replace the prior rigid rib interconnects with flexible "fingers" or contact pads which will accommodate the imperfect flatness of the ceramic fuel cells. Also, the mechanical stress of stacked fuel cells will be smaller due to the flexibility of the fingers. The interconnects can be one-sided or double-sided.

Lenz, David J.; Chung, Brandon W.; Pham, Ai Quoc

2004-11-09T23:59:59.000Z

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


381

Where is the ideal location for a US East Coast offshore grid? Michael J. Dvorak,1  

E-Print Network [OSTI]

weather model data from 2006­2010 were used to approximate wind farm output. The offshore grid was located%, and the combined capacity factor was 48% (gross). By interconnecting offshore wind energy farms 450 km apart of no and full-power events. Offshore grids to connect offshore wind energy (OWE) farms have been proposed

382

FUTURE POWER GRID INITIATIVE Linear Algebra Solvers and  

E-Print Network [OSTI]

perform fast analysis to determine the stability of a power grid system, e.g., to determine the load of power grid systems. As the future power grid system becomes more complex and as more model variability National Laboratory's (PNNL) national electric grid research facility, the FPGI will advance the science

383

A High-Efficiency Grid-Tie Battery Energy Storage System.  

E-Print Network [OSTI]

??Lithium-ion based battery energy storage system has become one of the most popular forms of energy storage system for its high charge and discharge efficiency… (more)

Qian, Hao

2011-01-01T23:59:59.000Z

384

Switching transients in wind farm grids Poul Srensen1)  

E-Print Network [OSTI]

's point of view seems to have been on the fault- ride-through capability of the wind turbines, in order offshore wind farms than from distributed wind turbines on land sites [4], [5]. However according the internal sub-sea cable grid interconnecting the wind turbines, often referred to as the power collection

385

Opening Remarks, Grid Integration Initiative Overview  

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

Loads Power Systems Integration Lab PV and Grid Simulators Energy Systems Integration Lab Fuel Cells, Electrolyzers Outdoor Test Area EVs, MV equipment Rooftop PV & Wind Energy...

386

Collaborative study of GENIEfy Earth System Models using scripted database workflows in a Grid  

E-Print Network [OSTI]

algorithms complement the component framework to provide a comprehensive toolset for Earth system modelling

A. R. Price; Z. Jiao; I. I. Voutchkov; T. M. Lenton; G. Williams; D. J. Lunt; R. Marsh; P. J. Valdes; S. J. Cox; The Genie Team

387

Blanc, I., Beloin-Saint-Pierre, D., Payet, J., Jacquin, P., Adra, N., Mayer, D., Espace-PV: key sensitive parameters for environmental impacts of grid-connected PV systems with LCA , In Proceedings of the 23rd  

E-Print Network [OSTI]

sensitive parameters for environmental impacts of grid-connected PV systems with LCA », In Proceedings FOR ENVIRONMENTAL IMPACTS OF GRID-CONNECTED PV SYSTEMS WITH LCA I. BLANC1 , D. BELOIN-SAINT-PIERRE1 , J. PAYET2 , P will bring the biggest variation on environmental impact when considering regions with large difference

Paris-Sud XI, Université de

388

This document is a preprint of the final paper: Shafiee, Qobad; Vasquez, Juan C.; Guerrero, Josep M.; , "Distributed secondary control for islanded MicroGrids -A networked control systems approach," IECON 2012 -38th Annual Conference on IEEE Industrial El  

E-Print Network [OSTI]

.; , "Distributed secondary control for islanded MicroGrids - A networked control systems approach," IECON 2012 - 38://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6389034&isnumber=6388505 1 Distributed Secondary Control for Islanded MicroGrids ­ A Networked Control such as power electronics converters, distributed generations (DGs), energy storage systems

Vasquez, Juan Carlos

389

Photovoltaic solar system connected to the electric power grid operating as active power generator and reactive power compensator  

SciTech Connect (OSTI)

In the case of photovoltaic (PV) systems acting as distributed generation (DG) systems, the DC energy that is produced is fed to the grid through the power-conditioning unit (inverter). The majority of contemporary inverters used in DG systems are current source inverters (CSI) operating at unity power factor. If, however, we assume that voltage source inverters (VSI) can replace CSIs, we can generate reactive power proportionally to the remaining unused capacity at any given time. According to the theory of instantaneous power, the inverter reactive power can be regulated by changing the amplitude of its output voltage. In addition, the inverter active power can be adjusted by modifying the phase angle of its output voltage. Based on such theory, both the active power supply and the reactive power compensation (RPC) can be carried out simultaneously. When the insolation is weak or the PV modules are inoperative at night, the RPC feature of a PV system can still be used to improve the inverter utilisation factor. Some MATLAB simulation results are included here to show the feasibility of the method. (author)

Albuquerque, Fabio L.; Moraes, Adelio J.; Guimaraes, Geraldo C.; Sanhueza, Sergio M.R.; Vaz, Alexandre R. [Universidade Federal de Uberlandia, Uberlandia-MG, CEP 38400-902 (Brazil)

2010-07-15T23:59:59.000Z

390

FUTURE POWER GRID INITIATIVE Scalable Sensor Data  

E-Print Network [OSTI]

of sensors and a large number of applications in future smart grids » Provide a uniformed API to allow applications to access real time power grid data » Facilitate the integration of a large number of diverse management systems » Allow easy integration of a large number of diverse power grid applications

391

FUTURE POWER GRID INITIATIVE Next Generation Network  

E-Print Network [OSTI]

FUTURE POWER GRID INITIATIVE Next Generation Network Simulations for Power System Applications MANAGEMENT The Next Generation Network Simulator is a framework for the partitioning, distribution, and run Grid Initiative (FPGI) will deliver next-generation concepts and tools for grid operation and planning

392

A Holistic Approach to Designing Energy-Efficient Cluster Interconnects  

E-Print Network [OSTI]

, new data centers in the Seattle area are forecast to increase the city's power demands by 25 percentA Holistic Approach to Designing Energy-Efficient Cluster Interconnects Eun Jung Kim, Member, IEEE--Designing energy-efficient clusters has recently become an important concern to make these systems economically

Kim, Eun Jung "EJ"

393

Topic 2: Introduction to Smart Grid A.H. MohsenianRad (U of T) 1Networking and Distributed Systems  

E-Print Network [OSTI]

Consumption Power Infrastructure Communications Infrastructure Twoway Flow of Electricity and Information #12 Department of Electrical & Computer Engineering Texas Tech University Spring 2012 #12;Agenda Dr. Hamed · Smart Grid: Applications / Benefits · Smart Grid in the United States · Government and Industries

Mohsenian-Rad, Hamed

394

Interconnect  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickrinformation for and NovelFEG-SEM with0,

395

Multiobjective tuning of Grid-enabled Earth System Models using a Non-dominated Sorting Genetic  

E-Print Network [OSTI]

-dominated sorting genetic algorithm (NSGA-II) to the GENIE-1 Earth System Model (ESM). Twelve model parameters are

A. R. Price; I. I. Voutchkov; G. E. Pound; N. R. Edwards; T. M. Lenton; S. J. Cox; The Genie Team

396

Oahu Wind Integration and Transmission Study (OWITS): Hawaiian Islands Transmission Interconnection Project  

SciTech Connect (OSTI)

This report provides an independent review included an initial evaluation of the technical configuration and capital costs of establishing an undersea cable system and examining impacts to the existing electric transmission systems as a result of interconnecting the islands.

Woodford, D.

2011-02-01T23:59:59.000Z

397

Phase 2 Report: Oahu Wind Integration and Transmission Study (OWITS); Hawaiian Islands Transmission Interconnection Project  

SciTech Connect (OSTI)

This report provides an independent review including an initial evaluation of the technical configuration and capital costs of establishing an undersea cable system and examining impacts to the existing electric transmission systems as a result of interconnecting the islands

Woodford, D.

2011-02-01T23:59:59.000Z

398

Technology Challenges in Designing the Future Grid to Enable  

E-Print Network [OSTI]

Technology Challenges in Designing the Future Grid to Enable Sustainable Energy Systems Future Grid the Future Electric Energy System #12;Technology Challenges in Designing the Future Grid to Enable Summary This white paper synthesizes technology challenges for reaching a vision of the future grid that

399

Double interconnection fuel cell array  

DOE Patents [OSTI]

A fuel cell array is made, containing number of tubular, elongated fuel cells which are placed next to each other in rows (A, B, C, D), where each cell contains inner electrodes and outer electrodes, with solid electrolyte between the electrodes, where the electrolyte and outer electrode are discontinuous, having two portions, and providing at least two opposed discontinuities which contain at least two oppositely opposed interconnections contacting the inner electrode, each cell having only three metallic felt electrical connectors which contact surrounding cells, where each row is electrically connected to the other. 5 figures.

Draper, R.; Zymboly, G.E.

1993-12-28T23:59:59.000Z

400

A novel design for monolithic interconnected modules (MIMs) for thermophotovoltaic (TPV) power conversion  

SciTech Connect (OSTI)

The design for the fabrication of Monolithic Interconnected Modules (MIMs) for thermophotovoltaic (TPV) power conversion described in this paper utilizes a novel, interdigitated contacting scheme that increases the flexibility in the size of the component cells and hence the output current and voltage of the module. This flexibility is gained at the expense of only minimally increased grid obscuration. Because the design uses the grid fingers of the component cells as the interconnect structure, the area of the device used for this purpose becomes negligible. In this paper the authors report on the specifics of the design as well as issues related to the fabrication of the modules. Preliminary performance data for representative modules also are offered.

Ward, J.S.; Duda, A.; Wanlass, M.W. [National Renewable Energy Lab., Golden, CO (United States)] [and others

1997-06-01T23:59:59.000Z

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


401

Evaluating Machine Learning for Improving Power Grid Reliability Leon Wu leon@cs.columbia.edu  

E-Print Network [OSTI]

as the electrical grid morphs into the "smart grid" will require innovations in how we assess the state of the grid and intelligent electricity distribution and trans- mission system, i.e., power grid. The smart grid has been (Force, 2010). Without the smart grid, many emerging clean energy technologies such as electric ve

Rudin, Cynthia

402

Homeowners Guide to Financing a Grid-Connected Solar Electric System (Brochure)  

SciTech Connect (OSTI)

This guide provides an overview of the financing options that may be available to homeowners who are considering installing a solar electric system on their house.

Not Available

2010-10-01T23:59:59.000Z

403

Survivable Systems Analysis of the North American Power Grid Communications Infrastructure 1,2  

E-Print Network [OSTI]

-time control infrastructures such as transportation systems, natural gas distribution, and oil pipeline generation, transmission, distribution, control equipment and sensors that is a keystone critical

Krings, Axel W.

404

Solar Energy Grid Integration Systems. Final Report of the Princeton Power Systems Development of the 100kW Demand Response Inverter.  

SciTech Connect (OSTI)

Initiated in 2008, the Solar Energy Grid Integration (SEGIS) program is a partnership involving the U.S. Department of Energy, Sandia National Laboratories, electric utilities, academic institutions and the private sector. Recognizing the need to diversify the nation's energy portfolio, the SEGIS effort focuses on specific technologies needed to facilitate the integration of large-scale solar power generation into the nation's power grid Sandia National Laboratories (SNL) awarded a contract to Princeton Power Systems, Inc., (PPS) to develop a 100kW Advanced AC-link SEGIS inverter prototype under the Department of Energy Solar Energy Technologies Program for near-term commercial applications. This SEGIS initiative emphasizes the development of advanced inverters, controllers, communications and other balance-of-system components for photovoltaic (PV) distributed power applications. The SEGIS Stage 3 Contract was awarded to PPS on July 28, 2010. PPS developed and implemented a Demand Response Inverter (DRI) during this three-stage program. PPS prepared a 'Site Demonstration Conference' that was held on September 28, 2011, to showcase the cumulative advancements. This demo of the commercial product will be followed by Underwriters Laboratories, Inc., certification by the fourth quarter of 2011, and simultaneously the customer launch and commercial production sometime in late 2011 or early 2012. This final report provides an overview of all three stages and a full-length reporting of activities and accomplishments in Stage 3.

Bower, Ward Isaac; Heavener, Paul (Princeton Power Systems, Inc., Princeton, NJ); Sena-Henderson, Lisa; Hammell, Darren (Princeton Power Systems, Inc., Princeton, NJ); Holveck, Mark (Princeton Power Systems, Inc., Princeton, NJ); David, Carolyn; Akhil, Abbas Ali; Gonzalez, Sigifredo

2012-01-01T23:59:59.000Z

405

Grid Pricing of Fed Cattle  

E-Print Network [OSTI]

There are several value-based fed cattle pricing systems, including formula pricing, price grids and alliances. This publication describes the different cattle pricing methods and helps you decide which is best for you....

Schroeder, Ted C.; Hogan, Robert J.; Anderson, David P.

2009-03-02T23:59:59.000Z

406

Recent Development of SOFC Metallic Interconnect  

SciTech Connect (OSTI)

Interest in solid oxide fuel cells (SOFC) stems from their higher e±ciencies and lower levels of emitted pollu- tants, compared to traditional power production methods. Interconnects are a critical part in SOFC stacks, which connect cells in series electrically, and also separate air or oxygen at the cathode side from fuel at the anode side. Therefore, the requirements of interconnects are the most demanding, i:e:, to maintain high elec- trical conductivity, good stability in both reducing and oxidizing atmospheres, and close coe±cient of thermal expansion (CTE) match and good compatibility with other SOFC ceramic components. The paper reviewed the interconnect materials, and coatings for metallic interconnect materials.

Wu JW, Liu XB

2010-04-01T23:59:59.000Z

407

NREL: Technology Deployment - Distributed Generation Interconnection...  

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

Distributed Generation Interconnection Collaborative Become a Member DGIC members are included in quarterly informational meetings and discussions related to distributed PV...

408

Physics design of a 100 keV acceleration grid system for the diagnostic neutral beam for international tokamak experimental reactor  

SciTech Connect (OSTI)

This paper describes the physics design of a 100 keV, 60 A H{sup -} accelerator for the diagnostic neutral beam (DNB) for international tokamak experimental reactor (ITER). The accelerator is a three grid system comprising of 1280 apertures, grouped in 16 groups with 80 apertures per beam group. Several computer codes have been used to optimize the design which follows the same philosophy as the ITER Design Description Document (DDD) 5.3 and the 1 MeV heating and current drive beam line [R. Hemsworth, H. Decamps, J. Graceffa, B. Schunke, M. Tanaka, M. Dremel, A. Tanga, H. P. L. De Esch, F. Geli, J. Milnes, T. Inoue, D. Marcuzzi, P. Sonato, and P. Zaccaria, Nucl. Fusion 49, 045006 (2009)]. The aperture shapes, intergrid distances, and the extractor voltage have been optimized to minimize the beamlet divergence. To suppress the acceleration of coextracted electrons, permanent magnets have been incorporated in the extraction grid, downstream of the cooling water channels. The electron power loads on the extractor and the grounded grids have been calculated assuming 1 coextracted electron per ion. The beamlet divergence is calculated to be 4 mrad. At present the design for the filter field of the RF based ion sources for ITER is not fixed, therefore a few configurations of the same have been considered. Their effect on the transmission of the electrons and beams through the accelerator has been studied. The OPERA-3D code has been used to estimate the aperture offset steering constant of the grounded grid and the extraction grid, the space charge interaction between the beamlets and the kerb design required to compensate for this interaction. All beamlets in the DNB must be focused to a single point in the duct, 20.665 m from the grounded grid, and the required geometrical aimings and aperture offsets have been calculated.

Singh, M. J. [ITER-India, Institute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428 (India); De Esch, H. P. L. [CEA-Cadarache, IRFM, F-13108 Saint-Paul-lez-Durance (France)

2010-01-15T23:59:59.000Z

409

Battery Management for Grid-Connected PV Systems with a Battery  

E-Print Network [OSTI]

}@usc.edu ABSTRACT Photovoltaic (PV) power generation systems are one of the most promising renewable power sources-connected systems, Photovoltaic power, Electricity bill 1. INTRODUCTION The number and capacity of photovoltaic (PV for customers to save enough money with lower monthly electricity bills to compensate the initial cost

Pedram, Massoud

410

Now Available: Smart Grid Investments Improve Grid Reliability...  

Energy Savers [EERE]

Smart Grid Investments Improve Grid Reliability, Resilience, and Storm Responses (November 2014) Now Available: Smart Grid Investments Improve Grid Reliability, Resilience, and...

411

FermiGrid - experience and future plans  

SciTech Connect (OSTI)

Fermilab supports a scientific program that includes experiments and scientists located across the globe. In order to better serve this community, Fermilab has placed its production computer resources in a Campus Grid infrastructure called 'FermiGrid'. The FermiGrid infrastructure allows the large experiments at Fermilab to have priority access to their own resources, enables sharing of these resources in an opportunistic fashion, and movement of work (jobs, data) between the Campus Grid and National Grids such as Open Science Grid and the WLCG. FermiGrid resources support multiple Virtual Organizations (VOs), including VOs from the Open Science Grid (OSG), EGEE and the Worldwide LHC Computing Grid Collaboration (WLCG). Fermilab also makes leading contributions to the Open Science Grid in the areas of accounting, batch computing, grid security, job management, resource selection, site infrastructure, storage management, and VO services. Through the FermiGrid interfaces, authenticated and authorized VOs and individuals may access our core grid services, the 10,000+ Fermilab resident CPUs, near-petabyte (including CMS) online disk pools and the multi-petabyte Fermilab Mass Storage System. These core grid services include a site wide Globus gatekeeper, VO management services for several VOs, Fermilab site authorization services, grid user mapping services, as well as job accounting and monitoring, resource selection and data movement services. Access to these services is via standard and well-supported grid interfaces. We will report on the user experience of using the FermiGrid campus infrastructure interfaced to a national cyberinfrastructure--the successes and the problems.

Chadwick, K.; Berman, E.; Canal, P.; Hesselroth, T.; Garzoglio, G.; Levshina, T.; Sergeev, V.; Sfiligoi, I.; Timm, S.; Yocum, D.; /Fermilab

2007-09-01T23:59:59.000Z

412

Voltage Collapse SimulationVoltage Collapse Simulation (Eastern Interconnection(Eastern Interconnection  

E-Print Network [OSTI]

PSERC Voltage Collapse SimulationVoltage Collapse Simulation (Eastern Interconnection(Eastern Interconnection Scenario)Scenario) Simulation Prepared by Dennis J. RaySimulation Prepared by Dennis J. Ray Interconnection based on a series of generator and line outages. An actual voltage collapse may not occur due

413

From the Grid to the Smart Grid, Topologically  

E-Print Network [OSTI]

The Smart Grid is not just about the digitalization of the Power Grid. In its more visionary acceptation, it is a model of energy management in which the users are engaged in producing energy as well as consuming it, while having information systems fully aware of the energy demand-response of the network and of dynamically varying prices. A natural question is then: to make the Smart Grid a reality will the Distribution Grid have to be updated? We assume a positive answer to the question and we consider the lower layers of Medium and Low Voltage to be the most affected by the change. In our previous work, we have analyzed samples of the Dutch Distribution Grid in our previous work and we have considered possible evolutions of these using synthetic topologies modeled after studies of complex systems in other technological domains in another previous work. In this paper, we take an extra important further step by defining a methodology for evolving any existing physical Power Grid to a good Smart Grid model th...

Pagani, Giuliano Andrea

2013-01-01T23:59:59.000Z

414

Smart Grid | Department of Energy  

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

Electricity Delivery and Energy Reliability Smart Grid Smart Grid Overview Smart Grid refers to electrical grids that automatically gather and communicate information on usage,...

415

Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems  

E-Print Network [OSTI]

the on-peak and off-peak energy markets. Price arbitrage isin the time-of-use energy market, but its success as aEnergy Storage for the Electricity Grid: Benefits and Market

Nottrott, A.; Kleissl, J.; Washom, B.

2013-01-01T23:59:59.000Z

416

Maximizing Return on Investment of a Grid-Connected Hybrid Electrical Energy Storage System  

E-Print Network [OSTI]

-of-day pricing policy [3] with much higher energy price during peak hours for residential users, incentivizing energy when the electricity price is low and supply energy for use when the electricity price is high [6 total energy cost saving compared to its capital cost (i.e., the purchase price of the system plus its

Pedram, Massoud

417

Novel MIMO Linear Zero Dynamic Controller for the Grid-connected Photovoltaic System with  

E-Print Network [OSTI]

sources, such as sunlight, wind, rain, tides and geothermal heat, are the best choices as alternative sources of energy [1]. All of these renewable sources, solar energy is the most commonly use renewable source in the power system. It is the fastest growing renewable source in the world. The energy report

Pota, Himanshu Roy

418

System and method for radiation dose calculation within sub-volumes of a monte carlo based particle transport grid  

DOE Patents [OSTI]

A system and method is disclosed for radiation dose calculation within sub-volumes of a particle transport grid. In a first step of the method voxel volumes enclosing a first portion of the target mass are received. A second step in the method defines dosel volumes which enclose a second portion of the target mass and overlap the first portion. A third step in the method calculates common volumes between the dosel volumes and the voxel volumes. A fourth step in the method identifies locations in the target mass of energy deposits. And, a fifth step in the method calculates radiation doses received by the target mass within the dosel volumes. A common volume calculation module inputs voxel volumes enclosing a first portion of the target mass, inputs voxel mass densities corresponding to a density of the target mass within each of the voxel volumes, defines dosel volumes which enclose a second portion of the target mass and overlap the first portion, and calculates common volumes between the dosel volumes and the voxel volumes. A dosel mass module, multiplies the common volumes by corresponding voxel mass densities to obtain incremental dosel masses, and adds the incremental dosel masses corresponding to the dosel volumes to obtain dosel masses. A radiation transport module identifies locations in the target mass of energy deposits. And, a dose calculation module, coupled to the common volume calculation module and the radiation transport module, for calculating radiation doses received by the target mass within the dosel volumes.

Bergstrom, Paul M. (Livermore, CA); Daly, Thomas P. (Livermore, CA); Moses, Edward I. (Livermore, CA); Patterson, Jr., Ralph W. (Livermore, CA); Schach von Wittenau, Alexis E. (Livermore, CA); Garrett, Dewey N. (Livermore, CA); House, Ronald K. (Tracy, CA); Hartmann-Siantar, Christine L. (Livermore, CA); Cox, Lawrence J. (Los Alamos, NM); Fujino, Donald H. (San Leandro, CA)

2000-01-01T23:59:59.000Z

419

Pricing in Information-Centric Network Interconnection  

E-Print Network [OSTI]

--ICN interconnection, economic incentives, col- laborative caching, non-cooperative games, network pricing. I economic incentives for caching and sharing content in ICN interconnection. For example, an ISP provider Engineering Department, ETH Zurich, Switzerland Abstract--We propose a pricing model to study the economic

Paris-Sud XI, Université de

420

FPGA Interconnect Delay Fault Testing Erik Chmelar  

E-Print Network [OSTI]

A satisfactory FPGA testing method meets several crite- ria. First, the routing resources must be explicitlyFPGA Interconnect Delay Fault Testing Erik Chmelar Center for Reliable Computing Stanford is a scalable manufactur- ing test method for all SRAM-based FPGAs, able to detect multiple interconnect delay

Stanford University

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


421

Smart Grid Status and Metrics Report Appendices  

SciTech Connect (OSTI)

A smart grid uses digital power control and communication technology to improve the reliability, security, flexibility, and efficiency of the electric system, from large generation through the delivery systems to electricity consumers and a growing number of distributed generation and storage resources. To convey progress made in achieving the vision of a smart grid, this report uses a set of six characteristics derived from the National Energy Technology Laboratory Modern Grid Strategy. The Smart Grid Status and Metrics Report defines and examines 21 metrics that collectively provide insight into the grid’s capacity to embody these characteristics. This appendix presents papers covering each of the 21 metrics identified in Section 2.1 of the Smart Grid Status and Metrics Report. These metric papers were prepared in advance of the main body of the report and collectively form its informational backbone.

Balducci, Patrick J.; Antonopoulos, Chrissi A.; Clements, Samuel L.; Gorrissen, Willy J.; Kirkham, Harold; Ruiz, Kathleen A.; Smith, David L.; Weimar, Mark R.; Gardner, Chris; Varney, Jeff

2014-07-01T23:59:59.000Z

422

Electric power grid control using a market-based resource allocation system  

DOE Patents [OSTI]

Disclosed herein are representative embodiments of methods, apparatus, and systems for distributing a resource (such as electricity) using a resource allocation system. In one exemplary embodiment, a plurality of requests for electricity are received from a plurality of end-use consumers. The requests indicate a requested quantity of electricity and a consumer-requested index value indicative of a maximum price a respective end-use consumer will pay for the requested quantity of electricity. A plurality of offers for supplying electricity are received from a plurality of resource suppliers. The offers indicate an offered quantity of electricity and a supplier-requested index value indicative of a minimum price for which a respective supplier will produce the offered quantity of electricity. A dispatched index value is computed at which electricity is to be supplied based at least in part on the consumer-requested index values and the supplier-requested index values.

Chassin, David P

2014-01-28T23:59:59.000Z

423

New York Independent System Operator, Inc. Smart Grid Project | Open Energy  

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 CenterFranconia, Virginia: Energy ResourcesLoading map...(Utility Company) Jump to: navigation,0558143°Information System Operator,

424

SciTech Connect: DOE SciDAC's Earth System Grid Center for Enabling  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systems controllerAdditiveBetatron

425

Grid-Competitive Residential and Commercial Fully Automated PV Systems Technology: Final technical Report, August 2011  

SciTech Connect (OSTI)

Under DOE's Technology Pathway Partnership program, SunPower Corporation developed turn-key, high-efficiency residential and commercial systems that are cost effective. Key program objectives include a reduction in LCOE values to 9-12 cents/kWh and 13-18 cents/kWh respectively for the commercial and residential markets. Target LCOE values for the commercial ground, commercial roof, and residential markets are 10, 11, and 13 cents/kWh. For this effort, SunPower collaborated with a variety of suppliers and partners to complete the tasks below. Subcontractors included: Solaicx, SiGen, Ribbon Technology, Dow Corning, Xantrex, Tigo Energy, and Solar Bridge. SunPower's TPP addressed nearly the complete PV value chain: from ingot growth through system deployment. Throughout the award period of performance, SunPower has made progress toward achieving these reduced costs through the development of 20%+ efficient modules, increased cell efficiency through the understanding of loss mechanisms and improved manufacturing technologies, novel module development, automated design tools and techniques, and reduced system development and installation time. Based on an LCOE assessment using NREL's Solar Advisor Model, SunPower achieved the 2010 target range, as well as progress toward 2015 targets.

Brown, Katie E.; Cousins, Peter; Culligan, Matt; Jonathan Botkin; DeGraaff, David; Bunea, Gabriella; Rose, Douglas; Bourne, Ben; Koehler, Oliver

2011-08-26T23:59:59.000Z

426

Principal Characteristics of a Modern Grid  

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

Some Technical Challenges Symposium on Modeling & Control of Alternative Energy Systems Joe Miller - Modern Grid Team Lead April 2, 2009 1 Conducted by the National Energy...

427

Panel 3, Electrolysis for Grid Energy Storage  

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

Electrolysis for Grid Energy Storage DOE-Industry Canada Workshop May 15, 2014 INTRODUCTION HYDROGEN ENERGY SYSTEMS FOR ENERGY STORAGE AND CLEAN FUEL PRODUCTION ITM POWER INC. ITM...

428

Grid Engineering for Accelerated Renewable Energy Deployment  

Broader source: Energy.gov [DOE]

The SunShot Grid Engineering for Accelerated Renewable Energy Deployment (GEARED) program supports increased power system research, development, and analytical capacity while simultaneously growing...

429

Sandia National Laboratories: Distribution Grid Integration  

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

Current switches have been inefficient and ... ECIS-Princeton Power Systems, Inc.: Demand Response Inverter On March 19, 2013, in DETL, Distribution Grid Integration,...

430

EPRI PEAC Corp.: Certification Model Program and Interconnection Agreement Tools  

SciTech Connect (OSTI)

Summarizes the work of EPRI PEAC Corp., under contract to DOE's Distribution and Interconnection R&D, to develop a certification model program and interconnection agreement tools to support the interconnection of distributed energy resources.

Not Available

2003-10-01T23:59:59.000Z

431

Wind Energy Management System Integration Project Incorporating Wind Generation and Load Forecast Uncertainties into Power Grid Operations  

SciTech Connect (OSTI)

The power system balancing process, which includes the scheduling, real time dispatch (load following) and regulation processes, is traditionally based on deterministic models. Since the conventional generation needs time to be committed and dispatched to a desired megawatt level, the scheduling and load following processes use load and wind power production forecasts to achieve future balance between the conventional generation and energy storage on the one side, and system load, intermittent resources (such as wind and solar generation) and scheduled interchange on the other side. Although in real life the forecasting procedures imply some uncertainty around the load and wind forecasts (caused by forecast errors), only their mean values are actually used in the generation dispatch and commitment procedures. Since the actual load and intermittent generation can deviate from their forecasts, it becomes increasingly unclear (especially, with the increasing penetration of renewable resources) whether the system would be actually able to meet the conventional generation requirements within the look-ahead horizon, what the additional balancing efforts would be needed as we get closer to the real time, and what additional costs would be incurred by those needs. In order to improve the system control performance characteristics, maintain system reliability, and minimize expenses related to the system balancing functions, it becomes necessary to incorporate the predicted uncertainty ranges into the scheduling, load following, and, in some extent, into the regulation processes. It is also important to address the uncertainty problem comprehensively, by including all sources of uncertainty (load, intermittent generation, generators’ forced outages, etc.) into consideration. All aspects of uncertainty such as the imbalance size (which is the same as capacity needed to mitigate the imbalance) and generation ramping requirement must be taken into account. The latter unique features make this work a significant step forward toward the objective of incorporating of wind, solar, load, and other uncertainties into power system operations. In this report, a new methodology to predict the uncertainty ranges for the required balancing capacity, ramping capability and ramp duration is presented. Uncertainties created by system load forecast errors, wind and solar forecast errors, generation forced outages are taken into account. The uncertainty ranges are evaluated for different confidence levels of having the actual generation requirements within the corresponding limits. The methodology helps to identify system balancing reserve requirement based on a desired system performance levels, identify system “breaking points”, where the generation system becomes unable to follow the generation requirement curve with the user-specified probability level, and determine the time remaining to these potential events. The approach includes three stages: statistical and actual data acquisition, statistical analysis of retrospective information, and prediction of future grid balancing requirements for specified time horizons and confidence intervals. Assessment of the capacity and ramping requirements is performed using a specially developed probabilistic algorithm based on a histogram analysis incorporating all sources of uncertainty and parameters of a continuous (wind forecast and load forecast errors) and discrete (forced generator outages and failures to start up) nature. Preliminary simulations using California Independent System Operator (California ISO) real life data have shown the effectiveness of the proposed approach. A tool developed based on the new methodology described in this report will be integrated with the California ISO systems. Contractual work is currently in place to integrate the tool with the AREVA EMS system.

Makarov, Yuri V.; Huang, Zhenyu; Etingov, Pavel V.; Ma, Jian; Guttromson, Ross T.; Subbarao, Krishnappa; Chakrabarti, Bhujanga B.

2010-09-01T23:59:59.000Z

432

SciTech Connect: DOE SciDAC's Earth System Grid Center for Enabling  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systems controllerAdditiveBetatron RadiationDirectmorphinanTechnologies

433

ECE 437/537 -Smart Grid Catalog Description: Fundamentals of smart power grids. Technology advances in transmission  

E-Print Network [OSTI]

ECE 437/537 - Smart Grid Catalog Description: Fundamentals of smart power grids. Technology advances in transmission and distribution systems. Policy drivers. Assets and demand management. Smart grid Cotilla-Sanchez Course content: · Introduction to smart power grids. Technology and policy background

434

IEEE TRANSACTIONS ON SMART GRID, VOL. 1, NO. 1, JUNE 2010 99 Security Technology for Smart Grid Networks  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON SMART GRID, VOL. 1, NO. 1, JUNE 2010 99 Security Technology for Smart Grid for a smart grid system, including public key infrastructures and trusted computing. Index Terms--Attestation, public key infrastructure (PKI), Su- pervisory Control And Data Acquisition (SCADA), security, smart grid

Hu, Fei

435

Energy Scalability of On-Chip Interconnection Networks in Multicore Architectures  

E-Print Network [OSTI]

On-chip interconnection networks (OCNs) such as point-to-point networks and buses form the communication backbone in systems-on-a-chip, multicore processors, and tiled processors. OCNs can consume significant portions of ...

Agarwal, Anant

2008-11-11T23:59:59.000Z

436

EIS-0438: Interconnection of the Proposed Hermosa West Wind Farm Project, Albany County, Wyoming  

Broader source: Energy.gov [DOE]

After the applicant withdrew its request to interconnect the proposed Hermosa West Wind Farm Project with Western Area Power Administration’s transmission system, Western cancelled preparation of an EIS to evaluate the potential environmental impacts of the proposal.

437

EIS-0437: Interconnection of the Buffalo Ridge III Wind Project, Brookings and Deuel Counties, South Dakota  

Broader source: Energy.gov [DOE]

This EIS evaluates the environmental impacts of a proposal to interconnect the Heartland Wind, LLC, proposed Buffalo Ridge III Wind Project in Brookings and Deuel Counties, South Dakota, to DOE’s Western Area Power Administration transmission system.

438

Reuse Distance Based Circuit Replacement in Silicon Photonic Interconnection Networks for HPC  

E-Print Network [OSTI]

-scale distance, can help to further scale data-movement capabilities in high performance computing (HPC demands within high performance computing (HPC) systems. Silicon photonic (SiP) interconnects [1-3], which

Bergman, Keren

439

Electrically long vertical interconnects for microwave circuits and antennas  

E-Print Network [OSTI]

Interconnect. . Microstrip Orientation for the Coaxial Interconnect. . . The Microstrip to Coax Transition in Fidelity Original Transition Model New Transition Model 450 mil Stub Transition Response, Transition Capacitance Using the Stub Method. 10... Transition Response (1, =20 mils, w, =60 mila) . . . . 1000 mil Coaxial Line Response . . . The Full Coaxial Interconnect in Fidelity. . Coaxial Interconnect Items in Fidelity Final Simulated Coaxial Interconnect Response The Coaxial Interconnect Test...

Coutant, Matthew Richard

2000-01-01T23:59:59.000Z

440

Human Factors for Situation Assessment in Grid Operations  

SciTech Connect (OSTI)

Executive Summary Despite advances in technology, power system operators must assimilate overwhelming amounts of data to keep the grid operating. Analyses of recent blackouts have clearly demonstrated the need to enhance the operator’s situation awareness (SA). The long-term objective of this research is to integrate valuable technologies into the grid operator environment that support decision making under normal and abnormal operating conditions and remove non-technical barriers to enable the optimum use of these technologies by individuals working alone and as a team. More specifically, the research aims to identify methods and principles to increase SA of grid operators in the context of system conditions that are representative or common across many operating entities and develop operationally relevant experimental methods for studying technologies and operational practices which contribute to SA. With increasing complexity and interconnectivity of the grid, the scope and complexity of situation awareness have grown. New paradigms are needed to guide research and tool development aimed to enhance and improve operations. In reviewing related research, operating practices, systems, and tools, the present study established a taxonomy that provides a perspective on research and development surrounding power grid situation awareness and clarifies the field of human factors/SA for grid operations. Information sources that we used to identify critical factors underlying SA included interviews with experienced operational personnel, available historical summaries and transcripts of abnormal conditions and outages (e.g., the August 14, 2003 blackout), scientific literature, and operational policies/procedures and other documentation. Our analysis of August 2003 blackout transcripts and interviews adopted a different perspective than previous analyses of this material, and we complemented this analysis with additional interviews. Based on our analysis and a broad literature review, we advocate a new perspective on SA in terms of sensemaking, also called situated or ecological decision making, where the focus of the investigation is to understand why the decision maker(s) experienced the situation the way they did, or why what they saw made sense to them at the time. This perspective is distinct from the traditional branch of human factors research in the field which focuses more on ergonomics and the transactional relationship between the human operator and the systems. Consistent with our findings from the literature review, we recognized an over-arching need to focus SA research on issues surrounding the concept of shared knowledge; e.g., awareness of what is happening in adjacent areas as well as one’s own area of responsibility. Major findings were: a) Inadequate communication/information sharing is pervasive, b) Information is available, but not used. Many tools and mechanisms exist for operators to build awareness of the physical grid system, yet the transcripts reveal that they still need to call and exchange information with operators of neighboring areas to improve or validate their SA. The specific types of information that they request are quite predictable and, in most cases, cover information that could be available to both operators and reliability coordinators through readily available displays or other data sources, c) Shared Knowledge is Required on Operations/Actions as Well as Physical Status. In an ideal, technologically and organizationally perfect world, every control room and every reliability coordinator may have access to complete data across all regional control areas and yet, there would still be reason for the operators to call each other to gain and improve their SA of power grid operations, and d) Situation Awareness as sensemaking and shared knowledge.

Guttromson, Ross T.; Schur, Anne; Greitzer, Frank L.; Paget, Mia L.

2007-08-08T23:59:59.000Z

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


441

The regulation of internet interconnection : assessing network market power  

E-Print Network [OSTI]

Interconnection agreements in the telecommunications industry have always been constrained by regulation. Internet interconnection has not received the same level of scrutiny. Recent debates regarding proposed mergers, ...

Maida, Elisabeth M. (Elisabeth Marigo)

2013-01-01T23:59:59.000Z

442

The ATLAS Software Installation System v2: a highly available system to install and validate Grid and Cloud sites via Panda  

E-Print Network [OSTI]

The ATLAS Installation System v2 is the evolution of the original system, used since 2003. The original tool has been completely re-designed in terms of database backend and components, adding support for submission to multiple backends, including the original WMS and the new Panda modules. The database engine has been changed from plain MySQL to Galera/Percona and the table structure has been optimized to allow a full High-Availability (HA) solution over WAN. The servlets, running on each frontend, have been also decoupled from local settings, to allow an easy scalability of the system, including the possibility of an HA system with multiple sites. The clients can also be run in multiple copies and in different geographical locations, and take care of sending the installation and validation jobs to the target Grid or Cloud sites. Moreover, the Installation DB is used as source of parameters by the automatic agents running in CVMFS, in order to install the software and distribute it to the sites. The system i...

De Salvo, Alessandro; The ATLAS collaboration; Smirnov, Yuri; Sanchez, Arturo

2015-01-01T23:59:59.000Z

443

Smart Grid The New and Improved Power Grid: A Survey Xi Fang, Student Member, IEEE, Satyajayant Misra, Member, IEEE, Guoliang Xue, Fellow, IEEE,  

E-Print Network [OSTI]

Smart Grid ­ The New and Improved Power Grid: A Survey Xi Fang, Student Member, IEEE, Satyajayant--The Smart Grid, regarded as the next generation power grid, uses two-way flows of electricity the literature till 2011 on the enabling technologies for the Smart Grid. We explore three major systems, namely

Misra, Satyajayant

444

Interconnection of on-site photovoltaic generation to the electric utility. [Conference paper  

SciTech Connect (OSTI)

Electrical interconnection with the local electric utility of small, privately owned, on-site photovoltaic generating systems will be necessary. Legal guidelines exist through PURPA, administered by FERC, to establish interconnection, but economic viability will be the deciding factor in constructing photovoltaic generating systems. Although nationally recognized technical standards do not yet exist for interconnecting photovoltaic generation with an electric utility, most utilities have considered the need for developing cogeneration standards, and a few have developed such standards independently. Additional costs incurred by utilities in providing service interconnections to customers with cogeneration will be passed along to those customers, either as a direct assessment or as part of the applicable rate schedule. An economic-analysis methodology has been developed to allow comparing various possible photovoltaic-generating-system configurations under different utility rate structures and varying economic climates on a consistent basis.

Eichler, C.H.; Kilar, L.A.; Stiller, P.H.

1980-01-01T23:59:59.000Z

445

Spontaneous synchronization driven by energy transport in interconnected networks  

E-Print Network [OSTI]

Understanding dynamical processes on networks is an important area of research in complex systems, with far reaching implications and applications in many real-world cases. Here we introduce and study a model of intertwined dynamics on interconnected networks, inspired by the human brain, which consists of bidirectionally coupled synchronization and energy transport processes. Remarkably, the proposed model allows the emergence of spontaneous switch-like synchronization transitions driven by the energy transport dynamics, which qualitatively mirror the transitions observed in human brain dynamics between resting-state and cognitive activity. We provide a steady-state analytical explanation for the observed behavior and show that the switch-like transition is robust over a wide range of model parameters and network topologies. Finally, we suggest that the complexity inherent in other interconnected dynamical processes might be responsible for various other emergent behaviors observed in natural systems.

Vincenzo Nicosia; Per Sebastian Skardal; Vito Latora; Alex Arenas

2015-02-26T23:59:59.000Z

446

Smart Grid System Report  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' Research |RegulationRenewable Energy (EERE) |SeniorItDepartmentManage theirAsAugust

447

A macro-micro system architecture analysis framework applied to Smart Grid meter data management systems by Sooraj Prasannan.  

E-Print Network [OSTI]

This thesis proposes a framework for architectural analysis of a system at the Macro and Micro levels. The framework consists of two phases -- Formulation and Analysis. Formulation is made up of three steps -- Identifying ...

Prasannan, Sooraj

2010-01-01T23:59:59.000Z

448

Carbon nanotube interconnects for IC chips  

E-Print Network [OSTI]

Carbon nanotubes (CNTs) have been investigated as candidate materials to replace or augment the existing copper-based technologies as interconnects for Integrated Circuit (IC) chips. Being ballistic conductors, CNTs are ...

Anwar Ali, Hashina Parveen

2006-01-01T23:59:59.000Z

449

Carbon nanotube synthesis for integrated circuit interconnects  

E-Print Network [OSTI]

Based on their properties, carbon nanotubes (CNTs) have been identified as ideal replacements for copper interconnects in integrated circuits given their higher current density, inertness, and higher resistance to ...

Nessim, Gilbert Daniel

2009-01-01T23:59:59.000Z

450

Abstract: With power market deregulation, member companies cooperate to share one whole grid system and try to achieve their  

E-Print Network [OSTI]

1 Abstract: With power market deregulation, member companies cooperate to share one whole grid estimation result of member companies or ISO by exchanging raw or estimated data with neighboring member companies/ISO. The concept of Bus Redundancy Descriptor (BRD) is developed based on critical measurement set

451

Modeling Power System Operation with Intermittent Resources  

SciTech Connect (OSTI)

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

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

2013-02-27T23:59:59.000Z

452

Wide-Area Situational Awareness of Power Grids with Limited Phasor Measurements  

SciTech Connect (OSTI)

Lack of situational awareness has been identified as one of root causes for the August 14, 2003 Northeast Blackout in North America. To improve situational awareness, the Department of Energy (DOE) launched several projects to deploy Wide Area Measurement Systems (WAMS) in different interconnections. Compared to the tens of thousands of buses, the number of Phasor Measurement Units (PMUs) is quite limited and not enough to achieve the observability for the whole interconnections. To utilize the limited number of PMU measurements to improve situational awareness, this paper proposes to combine PMU measurement data and power flow equations to form a hybrid power flow model. Technically, a model which combines the concept of observable islands and modeling of power flow conditions, is proposed. The model is called a Hybrid Power Flow Model as it has both PMU measurements and simulation assumptions, which describes prior knowledge available about whole power systems. By solving the hybrid power flow equations, the proposed method can be used to derive power system states to improve the situational awareness of a power grid.

Zhou, Ning; Huang, Zhenyu; Nieplocha, Jarek; Nguyen, Tony B.

2006-09-30T23:59:59.000Z

453

NREL Variability Analysis for the Western Interconnect (Presentation)  

SciTech Connect (OSTI)

This presentation investigates the effects of several Energy Imbalance Markets implementations in the Western Interconnect.

Milligan, M.; Kirby, B.; King, J.

2011-07-01T23:59:59.000Z

454

Accelerating Fatigue Testing for Cu Ribbon Interconnects (Presentation)  

SciTech Connect (OSTI)

This presentation describes fatigue experiments and discusses dynamic mechanical loading for Cu ribbon interconnects.

Bosco, N.; Silverman, T.; Wohlgemuth , J.; Kurtz, S.; Inoue, M.; Sakurai, K.; Shioda, T.; Zenkoh, H.; Miyashita, M.; Tadanori, T.; Suzuki, S.

2013-05-01T23:59:59.000Z

455

POWER GRID RELIABILITY AND SECURITY  

SciTech Connect (OSTI)

This project has led to the development of a real-time simulation platform for electric power grids called Grid Simulator or GridSim for simulating the dynamic and information network interactions of large- scale power systems. The platform consists of physical models of power system components including synchronous generators, loads and control, which are simulated using a modified commercial power simulator namely Transient Stability Analysis Tool (TSAT) [1] together with data cleanup components, as well as an emulated substation level and wide-area power analysis components. The platform also includes realistic representations of communication network middleware that can emulate the real-time information flow back and forth between substations and control centers in wide-area power systems. The platform has been validated on a realistic 6000-bus model of the western American power system. The simulator GridSim developed in this project is the first of its kind in its ability to simulate real-time response of large-scale power grids, and serves as a cost effective real-time stability and control simulation platform for power industry.

Bose, Anjan; Venkatasubramanian, Vaithianathan; Hauser, Carl; Bakken, David; Anderson, David; Zhao, Chuanlin; Liu, Dong; Yang, Tao; Meng, Ming; Zhang, Lin; Ning, Jiawei; Tashman, Zaid

2014-09-30T23:59:59.000Z

456

FINAL REPORT - CENTER FOR GRID MODERNIZATION  

SciTech Connect (OSTI)

The objective of the CGM was to develop high-priority grid modernization technologies in advanced sensors, communications, controls and smart systems to enable use of real-time or near real-time information for monitoring, analyzing and managing distribution and transmission grid conditions. The key strategic approach to carry out individual CGM research and development (R&D) projects was through partnerships, primarily with the GridApp™ Consortium utility members.

Markiewicz, Daniel R

2008-06-30T23:59:59.000Z

457

Spontaneous synchronization driven by energy transport in interconnected networks  

E-Print Network [OSTI]

Understanding dynamical processes on networks is an important area of research in complex systems, with far reaching implications and applications in many real-world cases. However, the research to date has mainly focused on single dynamical processes occurring on isolated networks, and very little is known about the more interesting and realistic case of different kinds of intertwined dynamical processes taking place on interconnected networks. An example of the non-trivial combination of two types of dynamics can be found in the human brain, where cerebral circulation delivers the nutrients and oxygenated blood needed for the activity of the different brain areas, and in turn the activity of a region can induce changes in the distribution of blood flow. Here, we introduce and study a model of intertwined dynamics on interconnected networks, inspired by the human brain, which consists of bidirectionally coupled synchronization and energy transport processes. Remarkably, the proposed model allows the emergence of spontaneous switch-like synchronization transitions driven by the energy transport dynamics, which qualitatively mirror the transitions observed in human brain dynamics between resting-state and cognitive activity. We provide a steady-state analytical explanation for the observed behavior and furthermore show that the switch-like transition is robust over a wide range of model parameters and network topologies. We suggest that the complexity inherent in other interconnected dynamical processes might be responsible for various other emergent behaviors observed in natural systems.

Vincenzo Nicosia; Per Sebastian Skardal; Vito Latora; Alex Arenas

2014-07-22T23:59:59.000Z

458

Smart Grid Consortium, Response of New York State Smart Grid...  

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

Consortium, Response of New York State Smart Grid Addressing Policy and Logistical Challenges Smart Grid Consortium, Response of New York State Smart Grid Addressing Policy and...

459

Grid Interaction Tech Team, and International Smart Grid Collaboration...  

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

Team, and International Smart Grid Collaboration Grid Interaction Tech Team, and International Smart Grid Collaboration 2012 DOE Hydrogen and Fuel Cells Program and Vehicle...

460

2012 Smart Grid Peer Review Presentations - Day 2 Smart Grid...  

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

Smart Grid Panel Discussion 2012 Smart Grid Peer Review Presentations - Day 2 Smart Grid Panel Discussion The Office of Electricity Delivery and Energy Reliability held its...

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


461

E-Print Network 3.0 - adaptive composite grid Sample Search Results  

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

Systems Engineering, Rensselaer Polytechnic Institute Collection: Biology and Medicine ; Engineering 2 Grids of Grids of Simple Services Geoffrey Fox Summary: one to build new...

462

Monolithically interconnected GaAs solar cells: A new interconnection technology for high voltage solar cell output  

SciTech Connect (OSTI)

Photovoltaic linear concentrator arrays can benefit from high performance solar cell technologies being developed at AstroPower. Specifically, these are the integration of thin GaAs solar cell and epitaxial lateral overgrowth technologies with the application of monolithically interconnected solar cell (MISC) techniques. This MISC array has several advantages which make it ideal for space concentrator systems. These are high system voltage, reliable low cost monolithically formed interconnections, design flexibility, costs that are independent of array voltage, and low power loss from shorts, opens, and impact damage. This concentrator solar cell will incorporate the benefits of light trapping by growing the device active layers over a low-cost, simple, PECVD deposited silicon/silicon dioxide Bragg reflector. The high voltage-low current output results in minimal 12R losses while properly designing the device allows for minimal shading and resistance losses. It is possible to obtain open circuit voltages as high as 67 volts/cm of solar cell length with existing technology. The projected power density for the high performance device is 5 kW/m for an AMO efficiency of 26% at 1 5X. Concentrator solar cell arrays are necessary to meet the power requirements of specific mission platforms and can supply high voltage power for electric propulsion systems. It is anticipated that the high efficiency, GaAs monolithically interconnected linear concentrator solar cell array will enjoy widespread application for space based solar power needs. Additional applications include remote man-portable or ultra-light unmanned air vehicle (UAV) power supplies where high power per area, high radiation hardness and a high bus voltage or low bus current are important. The monolithic approach has a number of inherent advantages, including reduced cost per interconnect and increased reliability of array connections. There is also a high potential for a large number of consumer products.

Dinetta, L.C.; Hannon, M.H.

1995-10-01T23:59:59.000Z

463

SciDAC's Earth System Grid Center for Enabling Technologies Semiannual Progress Report October 1, 2010 through March 31, 2011  

SciTech Connect (OSTI)

This report summarizes work carried out by the Earth System Grid Center for Enabling Technologies (ESG-CET) from October 1, 2010 through March 31, 2011. It discusses ESG-CET highlights for the reporting period, overall progress, period goals, and collaborations, and lists papers and presentations. To learn more about our project and to find previous reports, please visit the ESG-CET Web sites: http://esg-pcmdi.llnl.gov/ and/or https://wiki.ucar.edu/display/esgcet/Home. This report will be forwarded to managers in the Department of Energy (DOE) Scientific Discovery through Advanced Computing (SciDAC) program and the Office of Biological and Environmental Research (OBER), as well as national and international collaborators and stakeholders (e.g., those involved in the Coupled Model Intercomparison Project, phase 5 (CMIP5) for the Intergovernmental Panel on Climate Change (IPCC) 5th Assessment Report (AR5); the Community Earth System Model (CESM); the Climate Science Computational End Station (CCES); SciDAC II: A Scalable and Extensible Earth System Model for Climate Change Science; the North American Regional Climate Change Assessment Program (NARCCAP); the Atmospheric Radiation Measurement (ARM) program; the National Aeronautics and Space Administration (NASA), the National Oceanic and Atmospheric Administration (NOAA)), and also to researchers working on a variety of other climate model and observation evaluation activities. The ESG-CET executive committee consists of Dean N. Williams, Lawrence Livermore National Laboratory (LLNL); Ian Foster, Argonne National Laboratory (ANL); and Don Middleton, National Center for Atmospheric Research (NCAR). The ESG-CET team is a group of researchers and scientists with diverse domain knowledge, whose home institutions include eight laboratories and two universities: ANL, Los Alamos National Laboratory (LANL), Lawrence Berkeley National Laboratory (LBNL), LLNL, NASA/Jet Propulsion Laboratory (JPL), NCAR, Oak Ridge National Laboratory (ORNL), Pacific Marine Environmental Laboratory (PMEL)/NOAA, Rensselaer Polytechnic Institute (RPI), and University of Southern California, Information Sciences Institute (USC/ISI). All ESG-CET work is accomplished under DOE open-source guidelines and in close collaboration with the project's stakeholders, domain researchers, and scientists. Through the ESG project, the ESG-CET team has developed and delivered a production environment for climate data from multiple climate model sources (e.g., CMIP (IPCC), CESM, ocean model data (e.g., Parallel Ocean Program), observation data (e.g., Atmospheric Infrared Sounder, Microwave Limb Sounder), and analysis and visualization tools) that serves a worldwide climate research community. Data holdings are distributed across multiple sites including LANL, LBNL, LLNL, NCAR, and ORNL as well as unfunded partners sites such as the Australian National University (ANU) National Computational Infrastructure (NCI), the British Atmospheric Data Center (BADC), the Geophysical Fluid Dynamics Laboratory/NOAA, the Max Planck Institute for Meteorology (MPI-M), the German Climate Computing Centre (DKRZ), and NASA/JPL. As we transition from development activities to production and operations, the ESG-CET team is tasked with making data available to all users who want to understand it, process it, extract value from it, visualize it, and/or communicate it to others. This ongoing effort is extremely large and complex, but it will be incredibly valuable for building 'science gateways' to critical climate resources (such as CESM, CMIP5, ARM, NARCCAP, Atmospheric Infrared Sounder (AIRS), etc.) for processing the next IPCC assessment report. Continued ESG progress will result in a production-scale system that will empower scientists to attempt new and exciting data exchanges, which could ultimately lead to breakthrough climate science discoveries.

Williams, D N

2011-04-02T23:59:59.000Z

464

Smart Grid Enabled EVSE  

SciTech Connect (OSTI)

The combined team of GE Global Research, Federal Express, National Renewable Energy Laboratory, and Consolidated Edison has successfully achieved the established goals contained within the Department of Energy’s Smart Grid Capable Electric Vehicle Supply Equipment funding opportunity. The final program product, shown charging two vehicles in Figure 1, reduces by nearly 50% the total installed system cost of the electric vehicle supply equipment (EVSE) as well as enabling a host of new Smart Grid enabled features. These include bi-directional communications, load control, utility message exchange and transaction management information. Using the new charging system, Utilities or energy service providers will now be able to monitor transportation related electrical loads on their distribution networks, send load control commands or preferences to individual systems, and then see measured responses. Installation owners will be able to authorize usage of the stations, monitor operations, and optimally control their electricity consumption. These features and cost reductions have been developed through a total system design solution.

None, None

2014-10-15T23:59:59.000Z

465

Design of an ultrahigh vacuum transfer mechanism to interconnect an oxide molecular beam epitaxy growth chamber and an x-ray photoemission spectroscopy analysis system  

SciTech Connect (OSTI)

We designed a mechanism and the accompanying sample holders to transfer between a VEECO 930 oxide molecular beam epitaxy (MBE) and a PHI Versa Probe X-ray photoemission spectroscopy (XPS) chamber within a multiple station growth, processing, and analysis system through ultrahigh vacuum (UHV). The mechanism consists of four parts: (1) a platen compatible with the MBE growth stage, (2) a platen compatible with the XPS analysis stage, (3) a sample coupon that is transferred between the two platens, and (4) the accompanying UHV transfer line. The mechanism offers a robust design that enables transfer back and forth between the growth chamber and the analysis chamber, and yet is flexible enough to allow transfer between standard sample holders for thin film growth and masked sample holders for making electrical contacts and Schottky junctions, all without breaking vacuum. We used this mechanism to transfer a barium strontium titanate thin film into the XPS analysis chamber and performed XPS measurements before and after exposing the sample to the air. After air exposure, a thin overlayer of carbon was found to form and a significant shift ({approx}1 eV) in the core level binding energies was observed.

Rutkowski, M. M.; Zeng Zhaoquan [Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States); McNicholas, K. M. [Department of Electrical and Computer Engineering, Ohio State University, Columbus, Ohio 43210 (United States); Brillson, L. J. [Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States); Department of Electrical and Computer Engineering, Ohio State University, Columbus, Ohio 43210 (United States)

2013-06-15T23:59:59.000Z

466

Determination of Interfacial Adhesion Strength between Oxide Scale and Substrate for Metallic SOFC Interconnects  

SciTech Connect (OSTI)

The interfacial adhesion strength between the oxide scale and the substrate is crucial to the reliability and durability of metallic interconnects in SOFC operating environments. It is necessary, therefore, to establish a methodology to quantify the interfacial adhesion strength between the oxide scale and the metallic interconnect substrate, and furthermore to design and optimize the interconnect material as well as the coating materials to meet the design life of an SOFC system. In this paper, we present an integrated experimental/analytical methodology for quantifying the interfacial adhesion strength between oxide scale and a ferritic stainless steel interconnect. Stair-stepping indentation tests are used in conjunction with subsequent finite element analyses to predict the interfacial strength between the oxide scale and Crofer 22 APU substrate.

Sun, Xin; Liu, Wenning N.; Stephens, Elizabeth V.; Khaleel, Mohammad A.

2008-01-21T23:59:59.000Z

467

High-performance parallel processors based on star-coupled wavelength division multiplexing optical interconnects  

DOE Patents [OSTI]

As the performance of individual elements within parallel processing systems increases, increased communication capability between distributed processor and memory elements is required. There is great interest in using fiber optics to improve interconnect communication beyond that attainable using electronic technology. Several groups have considered WDM, star-coupled optical interconnects. The invention uses a fiber optic transceiver to provide low latency, high bandwidth channels for such interconnects using a robust multimode fiber technology. Instruction-level simulation is used to quantify the bandwidth, latency, and concurrency required for such interconnects to scale to 256 nodes, each operating at 1 GFLOPS performance. Performance scales have been shown to .apprxeq.100 GFLOPS for scientific application kernels using a small number of wavelengths (8 to 32), only one wavelength received per node, and achievable optoelectronic bandwidth and latency.

Deri, Robert J. (Pleasanton, CA); DeGroot, Anthony J. (Castro Valley, CA); Haigh, Ronald E. (Arvada, CO)

2002-01-01T23:59:59.000Z

468

Record of Decision for the Electrical Interconnection of the Windy Point Wind Energy Project.  

SciTech Connect (OSTI)

The Bonneville Power Administration (BPA) has decided to offer contract terms for interconnection of 250 megawatts (MW) of power to be generated by the proposed Windy Point Wind Energy Project (Wind Project) into the Federal Columbia River Transmission System (FCRTS). Windy Point Partners, LLC (WPP) propose to construct and operate the proposed Wind Project and has requested interconnection to the FCRTS. The Wind Project will be interconnected at BPA's Rock Creek Substation, which is under construction in Klickitat County, Washington. The Rock Creek Substation will provide transmission access for the Wind Project to BPA's Wautoma-John Day No.1 500-kilovolt (kV) transmission line. BPA's decision to offer terms to interconnect the Wind Project is consistent with BPA's Business Plan Final Environmental Impact Statement (BP EIS) (DOE/EIS-0183, June 1995), and the Business Plan Record of Decision (BP ROD, August 15, 1995). This decision thus is tiered to the BP ROD.

United States. Bonneville Power Administration.

2006-11-01T23:59:59.000Z

469

Relevance of Generation Interconnection Procedures to Feed-in Tariffs in the United States  

SciTech Connect (OSTI)

Feed-in tariffs (FITs) have been used to promote renewable electricity development in over 40 countries throughout the past two decades. These policies generally provide guaranteed prices for the full system output from eligible generators for a fixed time period (typically 15-20 years). Due in part to the success of FIT policies in Europe, some jurisdictions in the United States are considering implementing similar policies, and a few have already put such policies in place. This report is intended to offer some guidance to policymakers and regulators on how generator interconnection procedures may affect the implementation of FITs and how state generator interconnection procedures can be formulated to support state renewable energy objectives. This report is based on a literature review of model interconnection procedures formulated by several organizations, as well as other documents that have reviewed, commented on, and in some cases, ranked state interconnection procedures.

Fink, S.; Porter, K.; Rogers, J.

2010-10-01T23:59:59.000Z

470

Sharing Smart Grid Experiences  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2)Sharing Smart Grid Experiences through Performance Feedback

471

Grid Logging: Best Practices Guide  

E-Print Network [OSTI]

Revision date: March 1, 2008 Grid Logging: Best Practicesis to help developers of Grid middleware and applicationlog files that will be useful to Grid administrators, users,

Tierney, Brian L

2008-01-01T23:59:59.000Z

472

Sandia National Laboratories: SMART Grid  

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

Offers Approach to Help Utilities Understand Effects of PV Variability on the Grid On March 7, 2013, in DETL, Distribution Grid Integration, Energy, Energy Surety, Facilities, Grid...

473

Smart Grid Data Integrity Attack  

E-Print Network [OSTI]

Data Injection Attacks on Power Grids”, IEEE Transactionson Smart Grid, vol. 2, no. 2, June [21] O. Kosut, L.Data Attacks on Smart Grid State Estimation: Attack

Poolla, Kameshwar

2012-01-01T23:59:59.000Z

474

InterconnectFabric InterconnectFabric SingleBuilding Multi-Building  

E-Print Network [OSTI]

Interconnects in Datacenter Networks Opportunities and Challenges for WDM Hong Liu, Cedric F. Lam, and Chris We review the growing need for optical interconnect bandwidth in datacenter networks growth inside datacenter networks. INTRODUCTION The rapid growth of Internet and cloud computing

Tomkins, Andrew

475

GridOPTICS(TM): A Design for Plug-and-Play Smart Grid Software Architecture  

SciTech Connect (OSTI)

As the smart grid becomes reality, software architectures for integrating legacy systems with new innovative approaches for grid management are needed. These architectures must exhibit flexibility, extensibility, interoperability and scalability. In this position paper, we describe our preliminary work to design such an architecture, known as GridOPTICS, that will enable the deployment and integration of new software tools in smart grid operations. Our preliminary design is based upon use cases from PNNL’s Future Power Grid Initiative, which is a developing a collection of advanced software technologies for smart grid management and control. We describe the motivations for GridOPTICS, and the preliminary design that we are currently prototyping for several distinct use cases.

Gorton, Ian; Liu, Yan; Yin, Jian

2012-06-03T23:59:59.000Z

476

NiSource Energy Technologies Inc.: System Integration of Distributed Power for Complete Building Systems  

SciTech Connect (OSTI)

Summarizes NiSource Energy Technologies' work under contract to DOE's Distribution and Interconnection R&D. Includes studying distributed generation interconnection issues and CHP system performance.

Not Available

2003-10-01T23:59:59.000Z

477

Compatibility Study of Protective Relaying in a Grid-Connected Fuel Cell  

SciTech Connect (OSTI)

A 200-kW fuel cell produced by International Fuel Cells (IFC), a United Technologies Company, began operation at the National Transportation Research Center (NTRC) in early June 2003. The NTRC is a joint Oak Ridge National laboratory (ORNL) and University of Tennessee research facility located in Knoxville, Tennessee. This research activity investigated the protective relaying functions of this fully commercialized fuel cell power plant, which uses ''synthesized'' protective relays. The project's goal is to characterize the compatibility between the fuel cell's interconnection protection system and the local distribution system or electric power system (EPS). ORNL, with assistance from the Electric Power Research Institute-Power Electronics Applications Center (EPRI-PEAC) in Knoxville, Tennessee, monitored and characterized the system compatibility over a period of 6 months. Distribution utility engineers are distrustful of or simply uncomfortable with the protective relaying and hardware provided as part of distributed generation (DG) plants. Part of this mistrust is due to the fact that utilities generally rely on hardware from certain manufacturers whose reliability is well established based on performance over many years or even decades. Another source of concern is the fact that fuel cells and other types of DG do not use conventional relays but, instead, the protective functions of conventional relays are simulated by digital circuits in the distributed generator's grid interface control unit. Furthermore, the testing and validation of internal protection circuits of DG are difficult to accomplish and can be changed by the vendor at any time. This study investigated and documented the safety and protective relaying present in the IFC fuel cell, collected data on the operation of the fuel cell, recorded event data during EPS disturbances, and assessed the compatibility of the synthesized protective circuits and the local distribution system. The project also addressed other important and timely issues. For instance, the study includes an evaluation of the effectiveness of the fuel cell's synthesized relay protection scheme relative to the recently issued IEEE 1547 interconnection standard. Together, these activities should serve to reduce the number of unknowns pertaining to unconventional protective circuits, to the benefit of DG manufacturers, vendors, prospective and current users of DG, and electricity suppliers/distributors. Although more grid-connect fuel cell interruptions were encountered in this study than originally anticipated, and the investigation and findings became quite complex, every effort was made to clearly summarize the interconnection causes and issues throughout the report and especially in the summary found in Sect. 4. ORNL's funding of this study is sponsored equally by (1) the Department of Energy's (DOE's) Office of Distributed Energy Resources and (2) the Distributed Generation Technologies program of the Tennessee Valley Authority (TVA).

Staunton, R.H.

2004-04-15T23:59:59.000Z

478

Fuel rod support grid  

DOE Patents [OSTI]

A grid for the support of nuclear fuel rods arranged in a triangular array. The grid is formed by concentric rings of strap joined by radially arranged web sections.

Downs, Robert E. (Monroeville, PA); Schwallie, Ambrose L. (Greensburg, PA)

1985-01-01T23:59:59.000Z

479

The soft grid  

E-Print Network [OSTI]

The grid in architecture is a systematic organization of space. The means that architects use to organize space are, almost by definition, rigid and totalizing. The Cartesian grid, which will serve as the antagonist of the ...

Kardasis, Ari (Ari David)

2011-01-01T23:59:59.000Z

480

Method of grid generation  

DOE Patents [OSTI]

The present invention provides a method of grid generation that uses the geometry of the problem space and the governing relations to generate a grid. The method can generate a grid with minimized discretization errors, and with minimal user interaction. The method of the present invention comprises assigning grid cell locations so that, when the governing relations are discretized using the grid, at least some of the discretization errors are substantially zero. Conventional grid generation is driven by the problem space geometry; grid generation according to the present invention is driven by problem space geometry and by governing relations. The present invention accordingly can provide two significant benefits: more efficient and accurate modeling since discretization errors are minimized, and reduced cost grid generation since less human interaction is required.

Barnette, Daniel W. (Veguita, NM)

2002-01-01T23:59:59.000Z

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


481

Updating Interconnection Screens for PV System Integration  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II Field Emission SEM with EDAXUpdated CapitalMichael

482

Microsoft Word - RedSeal_Smart Grid Policy Logistics RFI-sd.docx  

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

and critical infrastructures interconnected with energy systems, a large-scale cyber attack could disrupt power and cause cascading failures, affecting the economy and public...

483

Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems  

E-Print Network [OSTI]

photovoltaic-battery storage system (PV+ system). The LPrate). Eq. 1 minimizes net PV+ battery system power output (photovoltaic-battery storage system (PV+ system). The

Nottrott, A.; Kleissl, J.; Washom, B.

2013-01-01T23:59:59.000Z

484

A Multi-Level Grid Interactive Bi-directional AC/DC-DC/AC Converter and a Hybrid Battery/Ultra-capacitor Energy Storage System with Integrated Magnetics for Plug-in Hybrid Electric Vehicles  

SciTech Connect (OSTI)

This study presents a bi-directional multi-level power electronic interface for the grid interactions of plug-in hybrid electric vehicles (PHEVs) as well as a novel bi-directional power electronic converter for the combined operation of battery/ultracapacitor hybrid energy storage systems (ESS). The grid interface converter enables beneficial vehicle-to-grid (V2G) interactions in a high power quality and grid friendly manner; i.e, the grid interface converter ensures that all power delivered to/from grid has unity power factor and almost zero current harmonics. The power electronic converter that provides the combined operation of battery/ultra-capacitor system reduces the size and cost of the conventional ESS hybridization topologies while reducing the stress on the battery, prolonging the battery lifetime, and increasing the overall vehicle performance and efficiency. The combination of hybrid ESS is provided through an integrated magnetic structure that reduces the size and cost of the inductors of the ESS converters. Simulation and experimental results are included as prove of the concept presenting the different operation modes of the proposed converters.

Onar, Omer C [ORNL] [ORNL

2011-01-01T23:59:59.000Z

485

SciDAC's Earth System Grid Center for Enabling Technologies Semi-Annual Progress Report for the Period October 1, 2009 through March 31, 2010  

SciTech Connect (OSTI)

This report summarizes work carried out by the ESG-CET during the period October 1, 2009 through March 31, 2009. It includes discussion of highlights, overall progress, period goals, collaborations, papers, and presentations. To learn more about our project, and to find previous reports, please visit the Earth System Grid Center for Enabling Technologies (ESG-CET) website. This report will be forwarded to the DOE SciDAC program management, the Office of Biological and Environmental Research (OBER) program management, national and international collaborators and stakeholders (e.g., the Community Climate System Model (CCSM), the Intergovernmental Panel on Climate Change (IPCC) 5th Assessment Report (AR5), the Climate Science Computational End Station (CCES), the SciDAC II: A Scalable and Extensible Earth System Model for Climate Change Science, the North American Regional Climate Change Assessment Program (NARCCAP), and other wide-ranging climate model evaluation activities).

Williams, D N; Foster, I T; Middleton, D E; Ananthakrishnan, R; Siebenlist, F; Shoshani, A; Sim, A; Bell, G; Drach, R; Ahrens, J; Jones, P; Brown, D; Chastang, J; Cinquini, L; Fox, P; Harper, D; Hook, N; Nienhouse, E; Strand, G; West, P; Wilcox, H; Wilhelmi, N; Zednik, S; Hankin, S; Schweitzer, R; Bernholdt, D; Chen, M; Miller, R; Shipman, G; Wang, F; Bharathi, S; Chervenak, A; Schuler, R; Su, M

2010-04-21T23:59:59.000Z

486

A Method for Introducing Nonuniform Grids into the FDTD Solution of the Transmission-Line Equations Based on the  

E-Print Network [OSTI]

, a nonuniformly spaced grid can be mapped onto a uniformly spaced grid where a standard set of FDTD update system transformation, a nonuniformly spaced grid can be mapped onto a uniformly spaced grid where a (2,p a one-dimensional coordinate system transformation that can be used to map a nonuniformly spaced grid

487

Value of Improved Wind Power Forecasting in the Western Interconnection (Poster)  

SciTech Connect (OSTI)

Wind power forecasting is a necessary and important technology for incorporating wind power into the unit commitment and dispatch process. It is expected to become increasingly important with higher renewable energy penetration rates and progress toward the smart grid. There is consensus that wind power forecasting can help utility operations with increasing wind power penetration; however, there is far from a consensus about the economic value of improved forecasts. This work explores the value of improved wind power forecasting in the Western Interconnection of the United States.

Hodge, B.

2013-12-01T23:59:59.000Z

488

Using Interconnected Texts to Highlight Culture in the Foreign Language Classroom  

E-Print Network [OSTI]

in analyzing this interconnectivity, teachers should deviseon the nature of interconnectivity in their everydaywill look for the interconnectivity of texts in other

Smith, Maya

2013-01-01T23:59:59.000Z

489

GridUnit: Software Testing on the Grid Alexandre Duarte, Walfredo Cirne, Francisco Brasileiro, Patrcia Machado  

E-Print Network [OSTI]

GridUnit: Software Testing on the Grid Alexandre Duarte, Walfredo Cirne, Francisco Brasileiro testing is a fundamental part of system development. As software grows, its test suite becomes larger methodologies, which preach a short develop/test cycle. Moreover, due to the increasing complexity of systems

Cirne, Walfredo

490

International Conference on Autonomic and Autonomous Systems (ICAS'06), Silicon Valley, CA, July 19-21, 2006 An Adaptive Approach to Information Dissemination in Self-Organizing Grids  

E-Print Network [OSTI]

and solutions necessary. In particular, grid schedulers must map applications onto resources whose state (1 services and solutions necessary. In par- ticular, grid schedulers must map applications onto resources-21, 2006 An Adaptive Approach to Information Dissemination in Self-Organizing Grids Deger Cenk Erdil

491

Convergence for the Smart Grid -On the technology opportunities for Future Cyber-Physical Energy Systems, invited paper at New Research Directions for Future Cyber-Physical Energy  

E-Print Network [OSTI]

Convergence for the Smart Grid - On the technology opportunities for Future Cyber-Physical Energy Angeles, CA. 90095 http://winmec.ucla.edu Email:smartgrid@winmec.ucla.edu Convergence for the Smart Grid into what the Future / Smart Electric Grid should look like. For example the DOE has a vision for the Modern

California at Los Angeles, University of

492

Text of article published in IEEE Smart Grid, March 2012. http://smartgrid.ieee.org/march-2012/527-microgrids-an-emerging-technology-to-enhance-power-system-  

E-Print Network [OSTI]

Text of article published in IEEE Smart Grid, March 2012. http://smartgrid.ieee.org/march-2012 of the recommendations of the Smart Grid Initiative [1]. While the microgrid may possess several advantages, including electricity grid are compromised, thus subjecting huge sections of the population to erratic supply

493

Smart Grid  

E-Print Network [OSTI]

-Conditioner, 15min ESL-KT-11-11-22 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011 What is Pecan Street Inc. ? A research-oriented smart home demonstration ? that places added interest to residential consumer experiences. ESL-KT-11-11-22 CATEE 2011, Dallas... to 1000 homes ? many with consumer feedback, load controls ? Lab completion ? 100+ electric vehicles ? Smart appliances ? Residential Storage ? LEED Hospital and multi-home systems ? home health, home security ESL-KT-11-11-22 CATEE 2011, Dallas...

Haskell,

2011-01-01T23:59:59.000Z

494

The Grid: Prospects for Application in Metrology  

E-Print Network [OSTI]

Global system of distributing computing - Grid - created as reply for challenges, connected with the qualitative progress of complexity of experimental physical assemblies and information systems, is presented as optimal IT platform for assurance of measurement traceability in geographically remote regions and measurement data protection in global networks. The new component grid - Instrument Element (IE) - is intended for secure, remote, joint team work on monitoring and managing instruments generated and stored on distributed scientific equipment using conventional grid resources. The article describes the variety of all possible IE applications within grid technology for the tasks of metrology demanding IT support. Expanded by the new component IE grid becomes an optimal environment for effective monitoring, management and servicing of measuring resources which has the highest level of measurement data transfer, storage and processing safety and reveals new opportunities to track measurement procedures and...

Neyezhmakov, P I; Zub, S S

2011-01-01T23:59:59.000Z

495

The transformation of modern electricity grids at the local and global scale into smart grids is at the core of sustainable economic, environmental and societal growth worldwide. This migration to more intelligent, user-friendly and responsive grids aroun  

E-Print Network [OSTI]

The transformation of modern electricity grids at the local and global scale into smart grids and deployment of appropriate communication and information technologies. Such Smart Grid Communication systems with C3 technologies - Communication, Control and Computing - playing key roles. Smart Grid

Fang, Yuguang "Michael"

496

Impact of High Solar Penetration in the Western Interconnection  

SciTech Connect (OSTI)

This paper presents an overview of the variable characteristics of solar power, as well as the accompanying grid dynamic performance and operational economics for a system with significant solar generation. The paper will show results of economic operational simulations of a very high solar generation future for the western half of the United States.

Lew, D.; Miller, N.; Clark, K.; Jordan, G.; Gao, Z.

2010-12-01T23:59:59.000Z

497

Energy dispatch schedule optimization and cost benefit analysis for grid-connected, photovoltaic-battery storage systems  

E-Print Network [OSTI]

photovoltaic systems with battery storages control based onconnected, photovoltaic-battery storage systems A. Nottrott,combined photovoltaic-battery storage system (PV+ system).

Nottrott, A.; Kleissl, J.; Washom, B.

2013-01-01T23:59:59.000Z

498

GridLAB-D: An Agent-Based Simulation Framework for Smart Grids  

SciTech Connect (OSTI)

Simulation of smart grid technologies requires a fundamentally new approach to integrated modeling of power systems, energy markets, building technologies, and the plethora of other resources and assets that are becoming part of modern electricity production, delivery, and consumption systems. As a result, the US Department of Energy’s Office of Electricity commissioned the development of a new type of power system simulation tool called GridLAB-D that uses an agent-based approach to simulating smart grids. This paper presents the numerical methods and approach to time-series simulation used by GridLAB-D and reviews applications in power system studies, market design, building control system design, and integration of wind power in a smart grid.

Chassin, David P.; Fuller, Jason C.; Djilali, Ned

2014-06-23T23:59:59.000Z

499

Grand Challenge: Scalable Stateful Stream Processing for Smart Grids  

E-Print Network [OSTI]

to the ACM DEBS Grand Challenge 2014, which evaluates event-based systems for smart grid analytics. OurGrand Challenge: Scalable Stateful Stream Processing for Smart Grids Raul Castro Fernandez for event queries. The 2014 edition of the challenge [15] focuses on smart grid analytics and is based

Pietzuch, Peter

500

IEEE TRANSACTIONS ON SMART GRID CALL FOR PAPERS  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON SMART GRID CALL FOR PAPERS Special Issue on "Optimization Methods and Algorithms Applied to Smart Grid" With recent developments in advanced monitoring, information, and communication technologies applied to smart grid, electric power systems will be able to respond more

Guan, Yongpei