National Library of Energy BETA

Sample records for grid integration power

  1. Power Grid Voltage Integrity Verification Department of ECE

    E-Print Network [OSTI]

    Najm, Farid N.

    Power Grid Voltage Integrity Verification Maha Nizam Department of ECE University of Toronto devgan@magma-da.com ABSTRACT Full-chip verification requires one to check if the power grid is safe, i of the circuit attached to the grid, thereby precluding early verification of the grid. We propose a power grid

  2. A Static PatternIndependent Technique for Power Grid Voltage Integrity Verification #

    E-Print Network [OSTI]

    Najm, Farid N.

    A Static Pattern­Independent Technique for Power Grid Voltage Integrity Verification # Dionysios Design verification must include the power grid. Checking that the voltage on the power grid does) the obviously large size of the power grids for modern high­performance chips, and ii) the di#culty of setting

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

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    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 with "smart-grid functionality." By smart-grid functionality we mean service-oriented grid enhancements

  4. NREL: Transmission Grid Integration - Active Power Controls

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

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

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

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    Integrated Retail and Wholesale (IRW) Power System Operations with Smart-Grid Functionality Leigh-NE, MISO, XM, RTE, MEC IRW Project: Integrated Retail/Wholesale Power System Operation with Smart-Grid Functionality 3 #12;4 Meaning of "Smart Grid Functionality"? For our project purposes: Smart-grid functionality

  6. Grid Integration

    SciTech Connect (OSTI)

    Not Available

    2008-09-01

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

  7. A Static Pattern-Independent Technique for Power Grid Voltage Integrity Verification

    E-Print Network [OSTI]

    Najm, Farid N.

    by the circuit off the grid. The current waveforms of these current sources may be determined by a priorA Static Pattern-Independent Technique for Power Grid Voltage Integrity Verification Dionysios Design verification must include the power grid. Checking that the voltage on the power grid does

  8. Inductive Characteristics of Power Distribution Grids in High Speed Integrated Circuits

    E-Print Network [OSTI]

    Friedman, Eby G.

    Inductive Characteristics of Power Distribution Grids in High Speed Integrated Circuits Andrey V characteristics of several types of gridded power distribution networks are described in this paper interconnect. In power distribution grids with alternating power and ground lines, the inductance is shown

  9. Integration of Wave and Tidal Power into the Haida Gwaii Electrical Grid

    E-Print Network [OSTI]

    Victoria, University of

    Integration of Wave and Tidal Power into the Haida Gwaii Electrical Grid by Susan Margot Boronowski Committee Integration of Wave and Tidal Power into the Haida Gwaii Electrical Grid by Susan Margot only be practical at power penetration levels less than 20%. #12;iv Table of Contents Supervisory

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

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    of retail and wholesale power markets operating over transmission and distribution networks with smart is the integrated study of retail and wholesale power markets operating over transmis- sion and distribution grids1 Integrated Retail and Wholesale Power System Operation with Smart-Grid Functionality Dionysios

  11. Integration of decentralized generators with the electric power grid

    E-Print Network [OSTI]

    Finger, Susan

    1981-01-01

    This report develops a new methodology for studying the economic interaction of customer-owned electrical generators with the central electric power grid. The purpose of the report is to study the reciprocal effects of the ...

  12. GridOPTICS(TM) A Novel Software Framework for Integrating Power Grid Data Storage, Management and Analysis

    SciTech Connect (OSTI)

    Gorton, Ian; Yin, Jian; Akyol, Bora A.; Ciraci, Selim; Critchlow, Terence; Liu, Yan; Gibson, Tara D.; Purohit, Sumit; Sharma, Poorva; Vlachopoulou, Maria

    2013-01-09

    This paper describes the architecture and design of GridOPTICSTM, a novel software framework to integrate a collection of software tools developed by PNNL’s Future Power Grid Initiative (FPGI) into a coherent, powerful operations and planning tool for the power grid of the future. GridOPTICSTM enables plug-and-play of various analysis, modeling and visualization software tools for fast and accurate control of the power grid. To bridge the data access for different control purposes, GridOPTICSTM provides a scalable and thin layer of event processing that hides the complexity of data storage and management. The initial prototype of GridOPTICSTM was demonstrated with several use cases from PNNL’s FPGI.

  13. A Stochastic Power Network Calculus for Integrating Renewable Energy Sources into the Power Grid

    SciTech Connect (OSTI)

    Wang, K; Ciucu, F; Lin, C; Low, SH

    2012-07-01

    Renewable energy such as solar and wind generation will constitute an important part of the future grid. As the availability of renewable sources may not match the load, energy storage is essential for grid stability. In this paper we investigate the feasibility of integrating solar photovoltaic (PV) panels and wind turbines into the grid by also accounting for energy storage. To deal with the fluctuation in both the power supply and demand, we extend and apply stochastic network calculus to analyze the power supply reliability with various renewable energy configurations. To illustrate the validity of the model, we conduct a case study for the integration of renewable energy sources into the power system of an island off the coast of Southern California. In particular, we asses the power supply reliability in terms of the average Fraction of Time that energy is Not-Served (FTNS).

  14. NREL: Transmission Grid Integration - Solar Power Data for 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial ToolkitSMARTS -BeingFutureResearch Staff

  15. innovati nNREL Confirms Large Potential for Grid Integration of Wind, Solar Power

    E-Print Network [OSTI]

    innovati nNREL Confirms Large Potential for Grid Integration of Wind, Solar Power To fully harvest, examining the east and west sections of the U.S. power grid. The studies show that it is technically the nation's bountiful wind and solar resources, it is critical to know how much electrical power from

  16. Distributed Real-Time Power Balancing in Renewable-Integrated Power Grids

    E-Print Network [OSTI]

    Liang, Ben

    , taking into account the uncertainty of the renewable generation, loads, and energy prices. We and more renewable energy sources such as wind and solar are expected to be integrated into the power grids balancing. Real-time control is mainly motivated by the unpredictability of renewable sources, which can

  17. An integrated security framework for GOSS power grid analytics platform

    SciTech Connect (OSTI)

    Gibson, Tara D.; Ciraci, Selim; Sharma, Poorva; Allwardt, Craig H.; Rice, Mark J.; Akyol, Bora A.

    2014-06-23

    In power grid operations, security is an essential component for any middleware platform. Security protects data against unwanted access as well as cyber attacks. GridOpticsTM Software System (GOSS) is an open source power grid analytics platform that facilitates ease of access between applications and data sources and promotes development of advanced analytical applications. GOSS contains an API that abstracts many of the difficulties in connecting to various heterogeneous data sources. A number of applications and data sources have already been implemented to demonstrate functionality and ease of use. A security framework has been implemented which leverages widely accepted, robust JavaTM security tools in a way such that they can be interchanged as needed. This framework supports the complex fine-grained, access control rules identified for the diverse data sources already in GOSS. Performance and reliability are also important considerations in any power grid architecture. An evaluation is done to determine the overhead cost caused by security within GOSS and ensure minimal impact to performance.

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

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    Integrated Retail and Wholesale (IRW) Power System Operations with Smart-Grid Functionality Leigh-NE, MISO, XM, RTE, MEC IRW Project: Integrated Retail/Wholesale Power System Operation with Smart on business practices manuals for restructured North American electric power markets Realistically rendered

  19. NREL Confirms Large Potential for Grid Integration of Wind, Solar Power (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

    To fully harvest the nation's bountiful wind and solar resources, it is critical to know how much electrical power from these renewable resources could be integrated reliably into the grid. To inform the discussion about the potential of such variable sources, the National Renewable Energy Laboratory (NREL) launched two key regional studies, examining the east and west sections of the U.S. power grid. The studies show that it is technically possible for U.S. power systems to integrate 20%-35% renewable electricity if infrastructure and operational improvements can be made.

  20. Sandia Energy - Solar Energy Grid Integration Systems (SEGIS...

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

    Solar Energy Grid Integration Systems (SEGIS) Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Grid Integration Solar Energy Grid Integration Systems...

  1. 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,...

  2. Smart Grid Integration Laboratory

    SciTech Connect (OSTI)

    Wade Troxell

    2011-09-30

    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.

  3. Large power grid analysis using domain decomposition

    E-Print Network [OSTI]

    Mohanram, Kartik

    Large power grid analysis using domain decomposition Quming Zhou, Kai Sun, Kartik Mohanram, Danny C referred to as the power grid. The power grid for a modern integrated circuit may consist of several grid is traditionally described as a large-scale linear system. Simulation of power grids usually

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

    SciTech Connect (OSTI)

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

    2014-01-31

    Electricity generation from wind power and other renewable energy sources is increasing, and their variability introduces new challenges to the power system. The emergence of smart grid technologies in recent years has seen a paradigm shift in redefining the electrical system of the future, in which controlled response of the demand side is used to balance fluctuations and intermittencies from the generation side. This paper presents a modeling framework for an integrated electricity system where loads become an additional resource. The agent-based model represents a smart grid power system integrating generators, transmission, distribution, loads and market. The model incorporates generator and load controllers, allowing suppliers and demanders to bid into a Real-Time Pricing (RTP) electricity market. The modeling framework is applied to represent a physical demonstration project conducted on the Olympic Peninsula, Washington, USA, and validation simulations are performed using actual dynamic data. Wind power is then introduced into the power generation mix illustrating the potential of demand response to mitigate the impact of wind power variability, primarily through thermostatically controlled loads. The results also indicate that effective implementation of Demand Response (DR) to assist integration of variable renewable energy resources requires a diversity of loads to ensure functionality of the overall system.

  5. Message Passing for Integrating and Assessing Renewable Generation in a Redundant Power Grid

    E-Print Network [OSTI]

    Zdeborová, Lenka; Chertkov, Michael

    2009-01-01

    A simplified model of a redundant power grid is used to study integration of fluctuating renewable generation. The grid consists of large number of generator and consumer nodes. The net power consumption is determined by the difference between the gross consumption and the level of renewable generation. The gross consumption is drawn from a narrow distribution representing the predictability of aggregated loads, and we consider two different distributions representing wind and solar resources. Each generator is connected to D consumers, and redundancy is built in by connecting R of these consumers to other generators. The lines are switchable so that at any instance each consumer is connected to a single generator. We explore the capacity of the renewable generation by determining the level of "firm" generation capacity that can be displaced for different levels of redundancy R. We also develop message-passing control algorithm for finding switch settings where no generator is overloaded.

  6. 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...

  7. FUTURE POWER GRID INITIATIVE GridOPTICSTM

    E-Print Network [OSTI]

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

  8. IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. , NO. , 1 Early-stage Power Grid Analysis for Uncertain

    E-Print Network [OSTI]

    Sapatnekar, Sachin

    -stage Power Grid Analysis for Uncertain Working Modes Haifeng Qian, Sani R. Nassif, Senior Member, IEEE the 100-plus watt regime, and power delivery and power grid signal integrity have become critical, and the worst-case scenarios found correlate well with the results from an ILP solver. Index Terms-- Power grid

  9. 908 IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, VOL. 16, NO. 7, JULY 2008 On-Chip Power Distribution Grids With

    E-Print Network [OSTI]

    Kolodny, Avinoam

    -Chip Power Distribution Grids With Multiple Supply Voltages for High-Performance Integrated Circuits Mikhail Abstract--On-chip power distribution grids with multiple supply voltages are discussed in this paper. Two types of interdig- itated and paired power distribution grids with multiple supply voltages and multiple

  10. IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. 30, NO. 5, MAY 2011 691 Fast Vectorless Power Grid Verification

    E-Print Network [OSTI]

    Najm, Farid N.

    2011 691 Fast Vectorless Power Grid Verification Under an RLC Model Nahi H. Abdul Ghani, Student Member that the power grid provides the underlying logic circuitry with voltage levels that are within specified ranges and scalable. Index Terms--Integrated circuits, overshoot, power grid, ver- ification, voltage drop. I

  11. Smart Grid Data Integrity Attack

    E-Print Network [OSTI]

    Poolla, Kameshwar

    2012-01-01

    Reliability for Improved Grid Security,” IEEE TransmissionNext Generation Power Grid Security, Syngress, 2010. [12] A.Grids,” 16th ACM Conference on Computer and Communications Security,

  12. Metagenomics Smart power grid

    E-Print Network [OSTI]

    Metagenomics Smart power grid The new weapons workhorse Laser on Mars LOS ALAMOS SCIENCE'll read about a unique collaboration to create a "smart" power grid to accommodate an increasing, TECHNOLOGY, AND ENGINEERING 2 8 14 Dynamic Vision DARHT FULFILLS ITS DESTINY Solar Smart Grid in the Atomic

  13. FUTURE POWER GRID INITIATIVE Next Generation Network

    E-Print Network [OSTI]

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

  14. Metagenomics Smart power grid

    E-Print Network [OSTI]

    Metagenomics Smart power grid The new weapons workhorse Laser on Mars LOS ALAMOS SCIENCE'll read about a unique collaboration to create a "smart" power grid to accommodate an increasing, and plans to modify an enzyme to grow renewable biofuels and mitigate carbon emissions from power plants

  15. Quantifiably secure power grid operation, management, and evolution : a study of uncertainties affecting the grid integration of renewables.

    SciTech Connect (OSTI)

    Gray, Genetha Anne; Watson, Jean-Paul; Silva Monroy, Cesar Augusto; Gramacy, Robert B.

    2013-09-01

    This report summarizes findings and results of the Quantifiably Secure Power Grid Operation, Management, and Evolution LDRD. The focus of the LDRD was to develop decisionsupport technologies to enable rational and quantifiable risk management for two key grid operational timescales: scheduling (day-ahead) and planning (month-to-year-ahead). Risk or resiliency metrics are foundational in this effort. The 2003 Northeast Blackout investigative report stressed the criticality of enforceable metrics for system resiliency - the grid's ability to satisfy demands subject to perturbation. However, we neither have well-defined risk metrics for addressing the pervasive uncertainties in a renewable energy era, nor decision-support tools for their enforcement, which severely impacts efforts to rationally improve grid security. For day-ahead unit commitment, decision-support tools must account for topological security constraints, loss-of-load (economic) costs, and supply and demand variability - especially given high renewables penetration. For long-term planning, transmission and generation expansion must ensure realized demand is satisfied for various projected technological, climate, and growth scenarios. The decision-support tools investigated in this project paid particular attention to tailoriented risk metrics for explicitly addressing high-consequence events. Historically, decisionsupport tools for the grid consider expected cost minimization, largely ignoring risk and instead penalizing loss-of-load through artificial parameters. The technical focus of this work was the development of scalable solvers for enforcing risk metrics. Advanced stochastic programming solvers were developed to address generation and transmission expansion and unit commitment, minimizing cost subject to pre-specified risk thresholds. Particular attention was paid to renewables where security critically depends on production and demand prediction accuracy. To address this concern, powerful filtering techniques for spatio-temporal measurement assimilation were used to develop short-term predictive stochastic models. To achieve uncertaintytolerant solutions, very large numbers of scenarios must be simultaneously considered. One focus of this work was investigating ways of reasonably reducing this number.

  16. FUTURE POWER GRID INITIATIVE Future Power Grid

    E-Print Network [OSTI]

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

  17. FUTURE POWER GRID INITIATIVE GridOPTICSTM Power Networking,

    E-Print Network [OSTI]

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

  18. FUTURE POWER GRID INITIATIVE GridPACK: Grid Parallel Advanced

    E-Print Network [OSTI]

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

  19. Sensor Grid: Integration of Wireless Sensor Networks and the Grid

    E-Print Network [OSTI]

    Teo, Yong-Meng

    With the convergence of technologies such as MEMS sensor devices, wireless networking, and low-power em- beddedSensor Grid: Integration of Wireless Sensor Networks and the Grid Hock Beng Lim1 , Yong Meng Teo1 Microsystems, Inc. E-mail: [limhb, teoym]@comp.nus.edu.sg Abstract Wireless sensor networks have emerged

  20. Sandia Energy - Grid 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II)Geothermal Energy & Drilling Technology HomeGrid CyberGrid Integration

  1. Integrating a significant amount of wind power generation into bulk power grid is a primary task for building a cost-effective renewable portfolio and a sustainable energy infrastructure. The uncertainty

    E-Print Network [OSTI]

    DeMara, Ronald F.

    Integrating a significant amount of wind power generation into bulk power grid is a primary task. This talk will be focused on modeling the spatial correlation of wind power from farm level to grid level and spatial correlation of wind farm power generation have posed new challenges to power system operations

  2. PhotoVoltaic distributed generation for Lanai power grid real-time simulation and control integration scenario.

    SciTech Connect (OSTI)

    Robinett, Rush D., III; Kukolich, Keith; Wilson, David Gerald; Schenkman, Benjamin L.

    2010-06-01

    This paper discusses the modeling, analysis, and testing in a real-time simulation environment of the Lanai power grid system for the integration and control of PhotoVoltaic (PV) distributed generation. The Lanai Island in Hawaii is part of the Hawaii Clean Energy Initiative (HCEI) to transition to 30% renewable green energy penetration by 2030. In Lanai the primary loads come from two Castle and Cook Resorts, in addition to residential needs. The total peak load profile is 12470 V, 5.5 MW. Currently there are several diesel generators that meet these loading requirements. As part of the HCEI, Lanai has initially installed 1.2 MW of PV generation. The goal of this study has been to evaluate the impact of the PV with respect to the conventional carbon-based diesel generation in real time simulation. For intermittent PV distributed generation, the overall stability and transient responses are investigated. A simple Lanai 'like' model has been developed in the Matlab/Simulink environment (see Fig. 1) and to accommodate real-time simulation of the hybrid power grid system the Opal-RT Technologies RT-Lab environment is used. The diesel generators have been modelled using the SimPowerSystems toolbox swing equations and a custom Simulink module has been developed for the High level PV generation. All of the loads have been characterized primarily as distribution lines with series resistive load banks with one VAR load bank. Three-phase faults are implemented for each bus. Both conventional and advanced control architectures will be used to evaluate the integration of the PV onto the current power grid system. The baseline numerical results include the stable performance of the power grid during varying cloud cover (PV generation ramping up/down) scenarios. The importance of assessing the real-time scenario is included.

  3. Redundancy-Aware Electromigration Checking for Mesh Power Grids

    E-Print Network [OSTI]

    Najm, Farid N.

    Redundancy-Aware Electromigration Checking for Mesh Power Grids Sandeep Chatterjee ECE Department-emerging as a significant problem in modern integrated circuits (IC). Especially in power grids, due to shrinking wire the reliability of the grid by considering it entirely as a series system. However, a power grid with its many

  4. FUTURE POWER GRID INITIATIVE Actionable Visualization Tools for

    E-Print Network [OSTI]

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

  5. Grid Simulator for Power Quality Assessment of Micro-Grids

    E-Print Network [OSTI]

    Vasquez, Juan Carlos

    1 Grid Simulator for Power Quality Assessment of Micro-Grids Joaqu´in Eloy-Garc´iaa , Juan C of the simulator. Finally, a case study is presented by testing a micro-grid. Index Terms Grid Simulator, Power for power quality assessment of micro-grids". Published in IET Power Electronics. doi: 10.1049/iet-pel.2012

  6. Early-stage Power Grid Analysis for Uncertain Working Modes

    E-Print Network [OSTI]

    Sapatnekar, Sachin

    Early-stage Power Grid Analysis for Uncertain Working Modes Haifeng Qian Department of ECE circuits are now reaching the 100-plus watt regime, and power delivery and power grid signal integrity have and Design Aids General Terms Algorithms, Performance, Design, Reliability Keywords Power grid, Supply

  7. Grid Integration and the Carrying Capacity of the U.S. Grid to...

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

    identifies emerging practices in power system planning and operation that can facilitate grid integration, and proposes a unifying concept-economic carrying capacity-that can...

  8. Grid Integration of Robotic Telescopes

    E-Print Network [OSTI]

    F. Breitling; T. Granzer; H. Enke

    2009-03-23

    Robotic telescopes and grid technology have made significant progress in recent years. Both innovations offer important advantages over conventional technologies, particularly in combination with one another. Here, we introduce robotic telescopes used by the Astrophysical Institute Potsdam as ideal instruments for building a robotic telescope network. We also discuss the grid architecture and protocols facilitating the network integration that is being developed by the German AstroGrid-D project. Finally, we present three user interfaces employed for this purpose.

  9. Solar Electric Grid Integration - Advanced Concepts (SEGIS-AC...

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

    Solar Electric Grid Integration - Advanced Concepts (SEGIS-AC) program, DOE is funding solar projects that are targeting ways to develop power electronics and build smarter, more...

  10. NWTC Transmission and Grid Integration (Revised) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-04-01

    The rapid growth of alternative power sources, especially wind power, is creating challenges that affect the existing electric grid. To keep up with this rapid growth, researchers in the Transmission and Grid Integration Group provide scientific, engineering, and analytical expertise to help advance alternative energy and accelerate its integration into the nation's electrical grid. For example, we evaluate U.S. wind energy resources and collect and analyze data about the impact of wind development on the electrical grid. Researchers in the Transmission and Grid Integration Group offer assistance to utility industry partners in the following integration areas.

  11. 2014 Modern Power Grid Video

    SciTech Connect (OSTI)

    2014-06-02

    A video from NETL that describes the details of a modern power grid and how it can help our nation save on energy costs.

  12. 2014 Modern Power Grid Video

    ScienceCinema (OSTI)

    None

    2014-07-22

    A video from NETL that describes the details of a modern power grid and how it can help our nation save on energy costs.

  13. Early Power Grid Verification Under Circuit Current Uncertainties

    E-Print Network [OSTI]

    Najm, Farid N.

    Early Power Grid Verification Under Circuit Current Uncertainties Imad A. Ferzli Department of ECE Eindhoven, The Netherlands lars@magma-da.com ABSTRACT As power grid safety becomes increasingly important in modern integrated circuits, so does the need to start power grid verifica- tion early in the design cycle

  14. Integration of Distributed Energy The CERTS MicroGrid Concept

    E-Print Network [OSTI]

    Resources The MicroGrid Concept Appendices Prepared for Transmission Reliability Program Office of PowerIntegration of Distributed Energy Resources The CERTS MicroGrid Concept CALIFORNIA ENERGY;Preface The U.S. Electricity Grid Today The U.S. electric power system is in the midst of a fundamental

  15. Parallel Simulation for VLSI Power Grid 

    E-Print Network [OSTI]

    Zhang, Le

    2015-07-23

    Due to the increasing complexity of VLSI circuits, power grid simulation has become more and more time-consuming. Hence, there is a need for fast and accurate power grid simulator. In order to perform power grid simulation ...

  16. Grid Integration of Solar Energy Workshop

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Grid Integration of Solar Energy workshop on October 29, 2015 identified critical challenges and opportunities associated with integrating hundreds of gigawatts of solar energy into the electric grid, assessed state of the art technologies, and to proposed a set of solutions that will address near- and long-term research and development needs. Participants included experts in the areas of power systems, controls, communications, data analytics, and sensors from academia, industry, government, electric utilities, and national laboratories. The SunShot team collected ideas, opinions, and comments from this workshop that will serve as valuable inputs to the development of research roadmaps and potential future funding opportunities.

  17. Integrated Retail & Wholesale Power System Operation

    E-Print Network [OSTI]

    Tesfatsion, Leigh

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

  18. Sandia Energy - Grid 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II)Geothermal Energy & Drilling Technology HomeGrid Cyber

  19. Sandia Energy - Grid Integration

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

    cybersecurity, energy storage, materials science, advanced controls, and microgrids, and is an integral part of Sandia's larger portfolio of renewable energy technology...

  20. POWER GRID RELIABILITY AND SECURITY

    SciTech Connect (OSTI)

    Bose, Anjan; Venkatasubramanian, Vaithianathan; Hauser, Carl; Bakken, David; Anderson, David; Zhao, Chuanlin; Liu, Dong; Yang, Tao; Meng, Ming; Zhang, Lin; Ning, Jiawei; Tashman, Zaid

    2014-09-30

    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.

  1. Investigation of a family of power conditioners integrated into a utility grid: final report Category I

    SciTech Connect (OSTI)

    Wood, P.; Putkovich, R.P.

    1981-07-01

    A study was conducted of the requirements for and technologies applicable to power conditioning equipment in residential solar photovoltaic systems. A survey of companies known or thought to manufacture power conditioning equipment was conducted to asses the technology. Technical issues regarding ac and dc interface requirements were studied. A baseline design was selected to be a good example of existing technology which would not need significant development effort for its implementation. Alternative technologies are evaluated to determine which meet the baseline specification, and their costs and losses are evaluated. Areas in which cost improvements can be obtained are studied, and the three best candidate technologies--the current-sourced converter, the HF front end converter, and the programmed wave converter--are compared. It is concluded that the designs investigated will meet, or with slight improvement could meet, short term efficiency goals. Long term efficiency goals could be met if an isolation transformer were not required in the power conditioning equipment. None of the technologies studied can meet cost goals unless further improvements are possible. (LEW)

  2. IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. , NO. , 1 Power Grid Analysis using Random Walks

    E-Print Network [OSTI]

    Sapatnekar, Sachin

    . Sapatnekar, Fellow, IEEE Abstract-- This paper presents a class of power grid analyzers based on a random out efficiently. For example, DC analysis of a 71K-node power grid with C4 pads takes 4.16 seconds; a 348K-node wire-bond DC power grid is solved in 93.64 seconds; RKC analysis of a 642K-node power grid

  3. Grid Integration Studies: Data Requirements, Greening the Grid...

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

    rates) for grid integration model development and calibration. * Collect and archive sub-hourly data where possible. * Monitor and incorporate best practices in fore- casting...

  4. 738 IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, VOL. 27, NO. 4, APRIL 2008 Power Grid Analysis and Optimization

    E-Print Network [OSTI]

    Hu, Jiang

    , APRIL 2008 Power Grid Analysis and Optimization Using Algebraic Multigrid Cheng Zhuo, Student Member of power grid analy- sis and optimization techniques, all of which are based on the algebraic of reducing the problem size for power grid analysis and optimization. Next, with the proposed reduction

  5. Enhancing Power Grid Stability through Analytics

    E-Print Network [OSTI]

    Lakoba, Taras I.

    Enhancing Power Grid Stability through Analytics: Information is Power, and Power is Information no dummies). · But... many challenges in the North American power grid revolve around coordinating? Power is Information · Refrain in many quarters of the power grid today says that we must "extract

  6. Sandia Energy - Grid 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis ofSample SULIColinEnergy PolicyLeaksDETL Permalink Gallery

  7. Sandia Energy - Grid 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis ofSample SULIColinEnergy PolicyLeaksDETL Permalink

  8. Sandia Energy - Grid 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis ofSample SULIColinEnergy PolicyLeaksDETL PermalinkDETL

  9. FUTURE POWER GRID INITIATIVE Intelligent Networked Sensors

    E-Print Network [OSTI]

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

  10. Smart Grid Data Integrity Attack

    E-Print Network [OSTI]

    Poolla, Kameshwar

    2012-01-01

    Grids”, IEEE Transactions on Smart Grid, vol. 2, no. 2,Malicious Data Attacks on Smart Grid State Estimation:Attack and Detection in Smart Grid,” to appear in IEEE

  11. Investigation of a family of power conditioners integrated into the utility grid: Category 1. Residential power conditioner. Final report

    SciTech Connect (OSTI)

    Steigerwald, R.L.; Ferraro, A.; Tompkins, R.E.

    1981-07-01

    The development of power conditioners for residential photovoltaic applications of approximately 5 to 30 kW is reported. The interface of the inverter and the solar array, as well as the ac utility is investigated including the effects of array input current, utility impedance, and injected harmonic currents. The trade-off study of alternate power conversion schemes are covered which results in a recommended approach. A conceptual design of the recommended approach, including performance results obtained from an inverter simulated is presented. (LEW)

  12. Transdisciplinary electric power grid science

    E-Print Network [OSTI]

    Brummitt, Charles D; Dobson, Ian; Moore, Cristopher; D'Souza, Raissa M

    2013-01-01

    The 20th-century engineering feat that most improved the quality of human life, the electric power system, now faces discipline-spanning challenges that threaten that distinction. So multilayered and complex that they resemble ecosystems, power grids face risks from their interdependent cyber, physical, social and economic layers. Only with a holistic understanding of the dynamics of electricity infrastructure and human operators, automatic controls, electricity markets, weather, climate and policy can we fortify worldwide access to electricity.

  13. NREL: Wind Research - Grid 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesof EnergyY-12WorkingSolarTechnologiesSilverGrid Integration

  14. Grid Integration | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment ofOffice ofofWindUpcomingcanGrid Integration The Wind Program works with

  15. Power Grid Correction Using Sensitivity Analysis Under an Pamela Al Haddad

    E-Print Network [OSTI]

    Najm, Farid N.

    Power Grid Correction Using Sensitivity Analysis Under an RC Model Pamela Al Haddad Department of the power grid requires one to check if the steady state voltage drops on all the nodes of the grid do]: Integrated Circuits--Design Aids General Terms Algorithms, Verification Keywords Power Grid, voltage drop

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

    SciTech Connect (OSTI)

    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

    2012-01-01

    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.

  17. Communication Systems for Grid Integration of Renewable Energy Resources

    E-Print Network [OSTI]

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

    2011-01-01

    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.

  18. Smart Grid Data Integrity Attack

    E-Print Network [OSTI]

    Poolla, Kameshwar

    2012-01-01

    IEEE Transactions on Smart Grid, vol. 2, no. 2, June [21] O.Malicious Data Attacks on Smart Grid State Estimation:Attack and Detection in Smart Grid,” to appear in IEEE

  19. Incremental Power Grid Verification ECE Department

    E-Print Network [OSTI]

    Najm, Farid N.

    Incremental Power Grid Verification Abhishek ECE Department University of Toronto Toronto, Ontario, Canada f.najm@utoronto.ca ABSTRACT Verification of the on-die power grid is a key step in the design General Terms Performance, Algorithms, Verification Keywords Power Grid, voltage drop 1. INTRODUCTION

  20. Transmission Grid Integration | Department of Energy

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

    utility operations, engage in transmission planning forums, and model generator output. More information on transmission grid integration is available in the Transmission...

  1. Role of Power Grid in Side Channel Attack and Power-Grid-Aware Secure Design

    E-Print Network [OSTI]

    Bhunia, Swarup

    Role of Power Grid in Side Channel Attack and Power-Grid-Aware Secure Design Xinmu Wang1 , Wen Yueh on the operating frequency due to RLC structure of a power grid. In this paper, we analyze the ef- fect of power grid on SCA and provide quantitative results to demonstrate the frequency-dependent SCA resistance due

  2. Greenbench: A Benchmark for Observing Power Grid Vulnerability Under Data-Centric Threats

    E-Print Network [OSTI]

    Wang, Wenye

    Greenbench: A Benchmark for Observing Power Grid Vulnerability Under Data-Centric Threats Mingkui- grates communication networks into traditional power grid. This integration, however, makes the power and applications. But in power grid, these data-centric attacks may result in instable power systems, and further

  3. Development of a low cost integrated 15 kW A.C. solar tracking sub-array for grid connected PV power system applications

    SciTech Connect (OSTI)

    Stern, M.; West, R.; Fourer, G.; Whalen, W.; Van Loo, M.; Duran, G.

    1997-02-01

    Utility Power Group has achieved a significant reduction in the installed cost of grid-connected PV systems. The two part technical approach focused on (1) The utilization of a large area factory assembled PV panel, and (2) The integration and packaging of all sub-array power conversion and control functions within a single factory produced enclosure. Eight engineering prototype 15kW ac single axis solar tracking sub-arrays were designed, fabricated, and installed at the Sacramento Municipal Utility District{close_quote}s Hedge Substation site in 1996 and are being evaluated for performance and reliability. A number of design enhancements will be implemented in 1997 and demonstrated by the field deployment and operation of over twenty advanced sub-array PV power systems. {copyright} {ital 1997 American Institute of Physics.}

  4. Risk-Mitigated Optimal Power Flow for Wind Powered Grids Emma Sjodin, Dennice F. Gayme and Ufuk Topcu

    E-Print Network [OSTI]

    Wierman, Adam

    Risk-Mitigated Optimal Power Flow for Wind Powered Grids Emma Sj¨odin, Dennice F. Gayme and Ufuk." High grid penetrations of solar or wind power pose a number of operational challenges and it is widely is the use of large-scale grid-integrated energy storage. The role of energy storage in power systems has

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

    SciTech Connect (OSTI)

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

    2010-01-01

    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 and solar 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/solar 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. 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. Currently, uncertainties associated with wind and load forecasts, as well as uncertainties associated with random generator outages and unexpected disconnection of supply lines, are not taken into account in power grid operation. Thus, operators have little means to weigh the likelihood and magnitude of upcoming events of power imbalance. In this project, funded by the U.S. Department of Energy (DOE), a framework has been developed for incorporating uncertainties associated with wind and load forecast errors, unpredicted ramps, and forced generation disconnections into the energy management system (EMS) as well as generation dispatch and commitment applications. A new approach to evaluate the uncertainty ranges for the required generation performance envelope including balancing capacity, ramping capability, and ramp duration has been proposed. The approach includes three stages: forecast and actual data acquisition, statistical analysis of retrospective information, and prediction of future grid balancing requirements for specified time horizons and confidence levels. Assessment of the capacity and ramping requirements is performed using a specially developed probabilistic algorithm based on a histogram analysis, incorporating all sources of uncertainties of both continuous (wind and load forecast errors) and discrete (forced generator outages and start-up failures) nature. A new method called the “flying brick” technique has been developed to evaluate the look-ahead required generation performance envelope for the worst case scenario within a user-specified confidence level. A self-validation algorithm has been developed to validate the accuracy of the confidence intervals.

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

    SciTech Connect (OSTI)

    2014-11-03

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

  7. NREL: Transmission Grid Integration - Grid Simulation

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

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

  8. Request for Comments on the Electric Grid Integration Technical...

    Office of Environmental Management (EM)

    Grid Integration Technical Workshops Summaries: Federal Register Notice Volume 78, No. 35 - Feb. 21, 2013 Request for Comments on the Electric Grid Integration Technical...

  9. Solar Grid Integration Industrial Research Perspectives

    E-Print Network [OSTI]

    Homes, Christopher C.

    with 25 inverters) Substation 1 Substation 2 Solar Power Generation Wind Generation 100 MW Wide variety Analysis AC Balance of plant Power conversion & grid interface key to system wide reliability #12;4 Presenter and Event 3/30/2011 Solar Power Generation Traditional Power Generation 500 MW Coal Power Plant 10

  10. Sandia Energy - Distribution Grid Integration

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

    resulting data Modeling and analyzing short-term PV variability Developing PV system models for grid planning and interconnection studies Evaluating related PV system...

  11. Sandia Energy - Transmission Grid Integration

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

    are not adequate for PV systems. In particular, utilities are concerned about the cost of managing PV variability and uncertainty, and possible impact on bulk grid...

  12. PEV Grid Integration Research - Vehicles, Buildings, and Renewables Working Together; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    2015-07-29

    This presentation will discuss current research activities in PEV grid integration at NREL. Presented at the 2015 IEEE Power and Energy Systems General Meeting, Denver, Colorado.

  13. Energy Storage for the Power Grid

    ScienceCinema (OSTI)

    Wang, Wei; Imhoff, Carl; Vaishnav, Dave

    2014-06-12

    The iron vanadium redox flow battery was developed by researchers at Pacific Northwest National Laboratory as a solution to large-scale energy storage for the power grid.

  14. Energy Storage for the Power Grid

    SciTech Connect (OSTI)

    Wang, Wei; Imhoff, Carl; Vaishnav, Dave

    2014-04-23

    The iron vanadium redox flow battery was developed by researchers at Pacific Northwest National Laboratory as a solution to large-scale energy storage for the power grid.

  15. Power control of a wind farm with active stall wind turbines and AC grid connection

    E-Print Network [OSTI]

    Power control of a wind farm with active stall wind turbines and AC grid connection Anca D. Hansen1 on the wind farm level. The ability of active stall wind farms with AC grid connection to regulate the power, is therefore directed towards optimising the integration of large wind farms within the electrical power grid

  16. Market-Based Indian Grid Integration Study Options: Preprint

    SciTech Connect (OSTI)

    Stoltenberg, B.; Clark, K.; Negi, S. K.

    2012-03-01

    The Indian state of Gujarat is forecasting solar and wind generation expansion from 16% to 32% of installed generation capacity by 2015. Some states in India are already experiencing heavy wind power curtailment. Understanding how to integrate variable generation (VG) into the grid is of great interest to local transmission companies and India's Ministry of New and Renewable Energy. This paper describes the nature of a market-based integration study and how this approach, while new to Indian grid operation and planning, is necessary to understand how to operate and expand the grid to best accommodate the expansion of VG. Second, it discusses options in defining a study's scope, such as data granularity, generation modeling, and geographic scope. The paper also explores how Gujarat's method of grid operation and current system reliability will affect how an integration study can be performed.

  17. Mitigating cascading failures in interdependent power grids and communication networks

    E-Print Network [OSTI]

    Parandehgheibi, Marzieh

    We study the interdependency between the power grid and the communication network used to control the grid. A communication node depends on the power grid in order to receive power for operation, and a power node depends ...

  18. Statistical Analysis for On-Chip Power Grid Networks and Interconnects Considering Process Variation

    E-Print Network [OSTI]

    Mi, Ning

    2009-01-01

    2 Background and Related Models Variational Power GridOn-chip Power Grid Network Models . . . . . . . . . .Power Grid Models Considered Process

  19. A Vectorless Framework for Power Grid Electromigration Checking

    E-Print Network [OSTI]

    Najm, Farid N.

    A Vectorless Framework for Power Grid Electromigration Checking Mohammad Fawaz Department of ECE, instead of the traditional series model. Keywords Power grid, Electromigration, Verification, Redundancy, Opti- mization 1. INTRODUCTION Power grid verification has become an essential step in modern

  20. Reactive power control of grid-connected wind farm based on adaptive dynamic programming

    E-Print Network [OSTI]

    He, Haibo

    Reactive power control of grid-connected wind farm based on adaptive dynamic programming Yufei Tang and integration with the grid. This controller can effectively dampen the oscillation of the wind farm system under grid fault. In general, there are mainly three kinds of wind power generators: squirrel

  1. Spontaneous synchrony in power-grid networks

    E-Print Network [OSTI]

    Motter, Adilson E; Anghel, Marian; Nishikawa, Takashi

    2013-01-01

    An imperative condition for the functioning of a power-grid network is that its power generators remain synchronized. Disturbances can prompt desynchronization, which is a process that has been involved in large power outages. Here we derive a condition under which the desired synchronous state of a power grid is stable, and use this condition to identify tunable parameters of the generators that are determinants of spontaneous synchronization. Our analysis gives rise to an approach to specify parameter assignments that can enhance synchronization of any given network, which we demonstrate for a selection of both test systems and real power grids. Because our results concern spontaneous synchronization, they are relevant both for reducing dependence on conventional control devices, thus offering an additional layer of protection given that most power outages involve equipment or operational errors, and for contributing to the development of "smart grids" that can recover from failures in real time.

  2. Integration Technology for PHEV-Grid-Connectivity, with Support...

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

    Technology for PHEV-Grid-Connectivity, with Support for SAE Electrical Standards Integration Technology for PHEV-Grid-Connectivity, with Support for SAE Electrical Standards 2010...

  3. Transforming Power Grid Operations via High Performance Computing

    SciTech Connect (OSTI)

    Huang, Zhenyu; Nieplocha, Jarek

    2008-07-31

    Past power grid blackout events revealed the adequacy of grid operations in responding to adverse situations partially due to low computational efficiency in grid operation functions. High performance computing (HPC) provides a promising solution to this problem. HPC applications in power grid computation also become necessary to take advantage of parallel computing platforms as the computer industry is undergoing a significant change from the traditional single-processor environment to an era for multi-processor computing platforms. HPC applications to power grid operations are multi-fold. HPC can improve today’s grid operation functions like state estimation and contingency analysis and reduce the solution time from minutes to seconds, comparable to SCADA measurement cycles. HPC also enables the integration of dynamic analysis into real-time grid operations. Dynamic state estimation, look-ahead dynamic simulation and real-time dynamic contingency analysis can be implemented and would be three key dynamic functions in future control centers. HPC applications call for better decision support tools, which also need HPC support to handle large volume of data and large number of cases. Given the complexity of the grid and the sheer number of possible configurations, HPC is considered to be an indispensible element in the next generation control centers.

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

    E-Print Network [OSTI]

    Greacen, Chris

    2014-01-01

    is connected to a power grid, the frequency is regulated bywith regional or national power grids calls for standardizedisland to the mainland power grid. The solar systems, which

  5. How do Wind and Solar Power Affect Grid Operations: The Western Wind and Solar Integration Study; Preprint

    SciTech Connect (OSTI)

    Lew, D.; Milligan, M.; Jordan, G.; Freeman, L.; Miller, N.; Clark, K.; Piwko, R.

    2009-09-01

    This paper reviews the scope of the Western Wind and Solar Integration Study, the development of wind and solar datasets, and the results to date on three scenarios.

  6. Dairyland Power Cooperative Comments on Smart Grid RFI: Addressing...

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

    Dairyland Power Cooperative Comments on Smart Grid RFI: Addressing Policy and Logistical Challenges Dairyland Power Cooperative Comments on Smart Grid RFI: Addressing Policy and...

  7. Electric Power Industry Needs for Grid-Scale Storage Applications...

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

    Electric Power Industry Needs for Grid-Scale Storage Applications Electric Power Industry Needs for Grid-Scale Storage Applications Stationary energy storage technologies will...

  8. Introduction The electric power grid and electric power

    E-Print Network [OSTI]

    Introduction The electric power grid and electric power industry are undergoing a dramatic transforma- tion. By linking information technologies with the electric power grid--to provide "electricity the standards process that will allow the many pieces of "the world's largest and most complex machine" to work

  9. FUTURE POWER GRID INITIATIVE Scalable Sensor Data

    E-Print Network [OSTI]

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

  10. Grid System Technologies Advanced Research Team Be recognized worldwide as the leading renewable energy integration experts specializing in islanded power

    E-Print Network [OSTI]

    and utility regulatory framework Renewable resource and energy efficiency portfolio standards Renewable, enabling policies, and new technologies and methods for effective integration of renewable energy resources and execution · Project resource contracting and management Hawaii Natural Energy Institute, University

  11. Best Practices in Grid Integration of Variable Wind Power: Summary of Recent US Case Study Results and Mitigation Measures

    SciTech Connect (OSTI)

    Smith, J. Charles (UWIG); Parsons, B.; (NREL), Acker, T.; (NAU), Milligan, M.; (NREL), Zavadil, R.

    2010-01-22

    This paper will summarize results from a number of utility wind integration case studies conducted recently in the US, and outline a number of mitigation measures based on insights from those studies.

  12. Power Grid Data Analysis with R and Hadoop

    SciTech Connect (OSTI)

    Hafen, Ryan P.; Gibson, Tara D.; Kleese van Dam, Kerstin; Critchlow, Terence J.

    2014-01-01

    This book chapter presents an approach to analysis of large-scale time-series sensor information based on our experience with power grid data. We use the R-Hadoop Integrated Programming Environment (RHIPE) to analyze a 2TB data set and present code and results for this analysis.

  13. Generating Circuit Current Constraints to Guarantee Power Grid Safety

    E-Print Network [OSTI]

    Najm, Farid N.

    Generating Circuit Current Constraints to Guarantee Power Grid Safety Zahi Moudallal ECE Dept, as well as power grid-aware placement and floorplanning. We give a rigorous problem definition and develop of power grids is a necessity in modern chip design. We will use the term "power grid" to refer to either

  14. Role of Smarter Grids in Variable Renewable Resource Integration (Presentation)

    SciTech Connect (OSTI)

    Miller, M.

    2012-07-01

    This presentation discusses the role of smarter grids in variable renewable resource integration and references material from a forthcoming ISGAN issue paper: Smart Grid Contributions to Variable Renewable Resource Integration, co-written by the presenter and currently in review.

  15. The Lattice QCD community needs both computing power and data sharing: the APE behind the GRID

    E-Print Network [OSTI]

    Rossetti, Davide

    The Lattice QCD community needs both computing power and data sharing: the APE behind the GRID A The introduction of new computing paradigms, namely Grid and Cluster computing, is exerting unusual pressure on traditional supercomputing environments to reach a certain level of integration. Grids are thought to become

  16. Wide-area situation awareness in electric power grid

    SciTech Connect (OSTI)

    Greitzer, Frank L.

    2010-04-28

    Two primary elements of the US energy policy are demand management and efficiency and renewable sources. Major objectives are clean energy transmission and integration, reliable energy transmission, and grid cyber security. Development of the Smart Grid seeks to achieve these goals by lowering energy costs for consumers, achieving energy independence and reducing greenhouse gas emissions. The Smart Grid is expected to enable real time wide-area situation awareness (SA) for operators. Requirements for wide-area SA have been identified among interoperability standards proposed by the Federal Energy Regulatory Commission and the National Institute of Standards and Technology to ensure smart-grid functionality. Wide-area SA and enhanced decision support and visualization tools are key elements in the transformation to the Smart Grid. This paper discusses human factors research to promote SA in the electric power grid and the Smart Grid. Topics that will be discussed include the role of human factors in meeting US energy policy goals, the impact and challenges for Smart Grid development, and cyber security challenges.

  17. Metrics for Assessment of Smart Grid Data Integrity Attacks

    SciTech Connect (OSTI)

    Annarita Giani; Miles McQueen; Russell Bent; Kameshwar Poolla; Mark Hinrichs

    2012-07-01

    There is an emerging consensus that the nation’s electricity grid is vulnerable to cyber attacks. This vulnerability arises from the increasing reliance on using remote measurements, transmitting them over legacy data networks to system operators who make critical decisions based on available data. Data integrity attacks are a class of cyber attacks that involve a compromise of information that is processed by the grid operator. This information can include meter readings of injected power at remote generators, power flows on transmission lines, and relay states. These data integrity attacks have consequences only when the system operator responds to compromised data by redispatching generation under normal or contingency protocols. These consequences include (a) financial losses from sub-optimal economic dispatch to service loads, (b) robustness/resiliency losses from placing the grid at operating points that are at greater risk from contingencies, and (c) systemic losses resulting from cascading failures induced by poor operational choices. This paper is focused on understanding the connections between grid operational procedures and cyber attacks. We first offer two examples to illustrate how data integrity attacks can cause economic and physical damage by misleading operators into taking inappropriate decisions. We then focus on unobservable data integrity attacks involving power meter data. These are coordinated attacks where the compromised data are consistent with the physics of power flow, and are therefore passed by any bad data detection algorithm. We develop metrics to assess the economic impact of these attacks under re-dispatch decisions using optimal power flow methods. These metrics can be use to prioritize the adoption of appropriate countermeasures including PMU placement, encryption, hardware upgrades, and advance attack detection algorithms.

  18. The Space Power Grid: Synergy Between Space, Energy and Security Policies

    E-Print Network [OSTI]

    collectors in a scalable path to space solar power. European initiatives for a DC grid to integrate space) that steady power is generated round the clock because the Sun is not obscured, and (2) as the scale increases

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

    E-Print Network [OSTI]

    Hayden, Nancy J.

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

  20. Sandia Energy - Distribution Grid 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis ofSample SULIColin Humphreys

  1. FUTURE POWER GRID INITIATIVE An Intelligent Agent Platform

    E-Print Network [OSTI]

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

  2. FUTURE POWER GRID INITIATIVE Decision Support for Future

    E-Print Network [OSTI]

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

  3. Fast Algorithms for Power Grid Analysis Based on Effective Resistance

    E-Print Network [OSTI]

    Friedman, Eby G.

    Fast Algorithms for Power Grid Analysis Based on Effective Resistance Selc¸uk K¨ose and Eby G method significantly outperforms previously proposed power grid analysis techniques in terms and the impedance of the power grid. The effective resistance between any two nodes in a uniform grid structure has

  4. Multigridlike Technique for Power Grid Analysis Joseph N. Kozhaya

    E-Print Network [OSTI]

    Najm, Farid N.

    Multigrid­like Technique for Power Grid Analysis Joseph N. Kozhaya University of Illinois, Urbana­micron VLSI designs include huge power grids that are required to distribute large amounts of current, at in a novel multigrid­like technique for the analysis of power grids. The grid is reduced to a coarser

  5. NREL: Transmission Grid Integration - Forecasting

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

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

  6. NREL: Transmission Grid Integration - News

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

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

  7. NREL: Transmission Grid Integration - Projects

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

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

  8. NREL: Transmission Grid Integration - Publications

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

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

  9. NREL: Transmission Grid Integration - Webinars

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

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

  10. NREL: Transmission Grid Integration - Webmaster

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

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

  11. Sandia Energy - Distribution Grid 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis ofSample SULIColin HumphreysDETL Permalink Gallery

  12. Sandia Energy - Transmission Grid 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput AnalysisSinkholeCapabilities General overview of

  13. Sandia Energy » Grid 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput AnalysisSinkholeCapabilitiesTheSandiansDOENaturalParticipated

  14. Visual Analytics for Power Grid Contingency Analysis

    SciTech Connect (OSTI)

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

    2014-01-20

    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.

  15. Final report for %22High performance computing for advanced national electric power grid modeling and integration of solar generation resources%22, LDRD Project No. 149016.

    SciTech Connect (OSTI)

    Reno, Matthew J.; Riehm, Andrew Charles; Hoekstra, Robert John; Munoz-Ramirez, Karina; Stamp, Jason Edwin; Phillips, Laurence R.; Adams, Brian M.; Russo, Thomas V.; Oldfield, Ron A.; McLendon, William Clarence, III; Nelson, Jeffrey Scott; Hansen, Clifford W.; Richardson, Bryan T.; Stein, Joshua S.; Schoenwald, David Alan; Wolfenbarger, Paul R.

    2011-02-01

    Design and operation of the electric power grid (EPG) relies heavily on computational models. High-fidelity, full-order models are used to study transient phenomena on only a small part of the network. Reduced-order dynamic and power flow models are used when analysis involving thousands of nodes are required due to the computational demands when simulating large numbers of nodes. The level of complexity of the future EPG will dramatically increase due to large-scale deployment of variable renewable generation, active load and distributed generation resources, adaptive protection and control systems, and price-responsive demand. High-fidelity modeling of this future grid will require significant advances in coupled, multi-scale tools and their use on high performance computing (HPC) platforms. This LDRD report demonstrates SNL's capability to apply HPC resources to these 3 tasks: (1) High-fidelity, large-scale modeling of power system dynamics; (2) Statistical assessment of grid security via Monte-Carlo simulations of cyber attacks; and (3) Development of models to predict variability of solar resources at locations where little or no ground-based measurements are available.

  16. NREL: Transmission Grid Integration - Wind Integration Datasets

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

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

  17. Protecting Intelligent Distributed Power Grids against Cyber Attacks

    SciTech Connect (OSTI)

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

    2010-12-31

    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.

  18. Fuzzy Trust Integration for Security Enforcement in Grid Computing*

    E-Print Network [OSTI]

    Hwang, Kai

    Fuzzy Trust Integration for Security Enforcement in Grid Computing* Shanshan Song, Kai Hwang sites is crucial to secure distributed Grid applications. We suggest enhancing the trust index running on the platforms. We propose a new fuzzy-logic trust model for securing Grid resources. Grid

  19. Grid Security and Integration with Minimal Performance Degradation Sugata Sanyal

    E-Print Network [OSTI]

    Sanyal, Sugata

    Grid Security and Integration with Minimal Performance Degradation Sugata Sanyal School of computational grids becoming a reality. However, the question of grid security remains one of the important open research issues. Here, we present some novel ideas about how to implement grid security, without

  20. A network approach for power grid robustness against cascading failures

    E-Print Network [OSTI]

    Wang, Xiangrong; Kooij, Robert E; Van Mieghem, Piet

    2015-01-01

    Cascading failures are one of the main reasons for blackouts in electrical power grids. Stable power supply requires a robust design of the power grid topology. Currently, the impact of the grid structure on the grid robustness is mainly assessed by purely topological metrics, that fail to capture the fundamental properties of the electrical power grids such as power flow allocation according to Kirchhoff's laws. This paper deploys the effective graph resistance as a metric to relate the topology of a grid to its robustness against cascading failures. Specifically, the effective graph resistance is deployed as a metric for network expansions (by means of transmission line additions) of an existing power grid. Four strategies based on network properties are investigated to optimize the effective graph resistance, accordingly to improve the robustness, of a given power grid at a low computational complexity. Experimental results suggest the existence of Braess's paradox in power grids: bringing an additional li...

  1. NASA's Information Power Grid William E. Johnston, Project Manager

    E-Print Network [OSTI]

    NASA's Information Power Grid William E. Johnston, Project Manager Arsi Vaziri, Deputy Project that Grids and Web Services combined represent as powerful a new tool for accessing and managing distributed and Data Grids? · Grids are technology and an emerging architecture that involve several types

  2. FUTURE POWER GRID INITIATIVE Modeling of Distributed Energy

    E-Print Network [OSTI]

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

  3. Power Converter Topologies with Energy Recovery and Grid Power Limitation For Inductive Load Applications

    E-Print Network [OSTI]

    Rossini, Stefano; Papastergiou, Konstantinos; Le Godec, Gilles; Retegui, Rogelio Garcia; Maestri, Sebastian

    2015-01-01

    This work investigates a grid interface for power supplies used in particle accelerators for cycling loads such as large electromagnets. Two topologies are discussed integrating magnetic energy recovery. For each topology, the associated energy management strategies are examined with the objective to control the grid current profile. A model is established for each of the proposed solutions and the simulation results are presented. A critical review of the investigated energy management solutions is attempted.

  4. Power Grid Defense Against Malicious Cascading Failure

    E-Print Network [OSTI]

    Shakarian, Paulo; Lindelauf, Roy

    2014-01-01

    An adversary looking to disrupt a power grid may look to target certain substations and sources of power generation to initiate a cascading failure that maximizes the number of customers without electricity. This is particularly an important concern when the enemy has the capability to launch cyber-attacks as practical concerns (i.e. avoiding disruption of service, presence of legacy systems, etc.) may hinder security. Hence, a defender can harden the security posture at certain power stations but may lack the time and resources to do this for the entire power grid. We model a power grid as a graph and introduce the cascading failure game in which both the defender and attacker choose a subset of power stations such as to minimize (maximize) the number of consumers having access to producers of power. We formalize problems for identifying both mixed and deterministic strategies for both players, prove complexity results under a variety of different scenarios, identify tractable cases, and develop algorithms f...

  5. FUTURE POWER GRID INITIATIVE A Statistical State Prediction

    E-Print Network [OSTI]

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

  6. FUTURE POWER GRID INITIATIVE Linear Algebra Solvers and

    E-Print Network [OSTI]

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

  7. FUTURE POWER GRID INITIATIVE Market Design Analysis Tool

    E-Print Network [OSTI]

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

  8. Energy Storage for the Power Grid

    SciTech Connect (OSTI)

    Imhoff, Carl; Vaishnav, Dave

    2014-07-01

    The iron vanadium redox flow battery was developed by researchers at Pacific Northwest National Laboratory as a solution to large-scale energy storage for the power grid. This technology provides the energy industry and the nation with a reliable, stable, safe, and low-cost storage alternative for a cleaner, efficient energy future.

  9. A Hybrid Network IDS for Protective Digital Relays in the Power Transmission Grid

    E-Print Network [OSTI]

    Koutsandria, Georgia; Muthukumar, Vishak; Parvania, Masood; Peisert, Sean; McParland, Chuck; Scaglione, Anna

    2014-01-01

    controllers that implement power grid protection schemes. Insuch as those in the power grid, including “Supervisory andmajor components of the power grid, and presents several key

  10. Regulation and investment under uncertainty: An application to power grid interconnection

    E-Print Network [OSTI]

    Saphores, Jean-Daniel M; Gravel, E; Bernard, J T

    2004-01-01

    An Application to Power Grid Interconnection. Jean-Danielto the Ontario power grid. This interconnection will allowfor our application to a power grid interconnection. Second,

  11. AVTA: Vehicle to Grid Power Flow Regulations and Building Codes...

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

    Merit Review 2014: PEV Integration with Renewables Vehicle Technologies Office Merit Review 2015: Electric Vehicle Grid Integration ANSI Electric Vehicle Standards Roadmap v2.0...

  12. Energy System Development inAfrica: The case of grid and off-grid power inKenya

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Energy System Development inAfrica: The case of grid and off-grid power inKenya By Katherine Deaton Development inAfrica: The case of grid and off-grid power inKenya Energy System Development inAfrica: The case of grid and off-grid power in Kenya by Katherine Steel Submitted to the Engineering Systems Division

  13. Islanded Grid Wind Power Conference | Department of Energy

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

    Islanded Grid Wind Power Conference Islanded Grid Wind Power Conference March 4, 2015 8:00AM AKST to March 6, 2015 5:00PM AKST Alaska Pacific University 4101 University Drive...

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

    E-Print Network [OSTI]

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

  15. Large-Scale Data Challenges in Future Power Grids

    SciTech Connect (OSTI)

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

    2013-03-25

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

  16. Real Time Simulation of Power Grid Disruptions

    SciTech Connect (OSTI)

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

    2012-11-01

    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.

  17. Stochastic Power Grid Analysis Considering Process Variations Praveen Ghanta

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Stochastic Power Grid Analysis Considering Process Variations Praveen Ghanta Sarma Vrudhula of interconnect and de- vice process variations on voltage fluctuations in power grids. We consider random variations in the power grid's electrical parame- ters as spatial stochastic processes and propose a new

  18. CyberPhysical System Security for the Electric Power Grid

    E-Print Network [OSTI]

    Manimaran, Govindarasu

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

  19. Transportation Center Seminar........ "Overview of Power Grid Research at Argonne

    E-Print Network [OSTI]

    Bustamante, Fabián E.

    Transportation Center Seminar........ "Overview of Power Grid Research at Argonne National is the first U.S. DOE national laboratory. Argonne has been engaged in power grid related research for over thirty years. In this talk, I will give an overview of the research activities on power grid at Argonne

  20. Efficient RC Power Grid Verification Using Node Elimination

    E-Print Network [OSTI]

    Najm, Farid N.

    Efficient RC Power Grid Verification Using Node Elimination Ankit Goyal Department of ECE to reduce the size of power grids but their fo- cus is more on simulation. In verification, we are concerned. This paper pro- poses a novel approach to systematically reduce the power grid and accurately compute

  1. Hierarchical Random-walk Algorithms for Power Grid Analysis

    E-Print Network [OSTI]

    Sapatnekar, Sachin

    Hierarchical Random-walk Algorithms for Power Grid Analysis Haifeng Qian Sachin S. Sapatnekar Minneapolis, MN 55414 qianhf@ece.umn.edu sachin@ece.umn.edu Abstract-- This paper presents a power grid an- bond power grid, for which the performance of the generic method degrades, is solved in 75.88 seconds

  2. Reliable and Scalable Communication for the Power Grid

    E-Print Network [OSTI]

    Mueller, Frank

    Reliable and Scalable Communication for the Power Grid Christopher Zimmer, Frank Mueller Abstract Future smart power grids require constant data availability for actuation of control decisions. The job topologies of smart devices that enable multi-route discovery in an intelligent power grid. This is ac

  3. TECH FORUM: [VERIFIED RTL TO GATES] Efficient RC power grid

    E-Print Network [OSTI]

    Najm, Farid N.

    TECH FORUM: [VERIFIED RTL TO GATES] Efficient RC power grid verification using node elimination proposes a novel approach to systematically reduce the power grid and accurately compute an upper bound on the voltage drops at power grid nodes that are retained. Furthermore, acriterion for the safety of nodes

  4. Incremental Partitioning-Based Vectorless Power Grid Verification

    E-Print Network [OSTI]

    Najm, Farid N.

    Incremental Partitioning-Based Vectorless Power Grid Verification Dionysios Kouroussis Department performance of a chip, design verification of the power grid is of critical importance. This paper builds the efficient verification of local power grid sections or blocks, enabling incremen- tal design analysis

  5. Fast Vectorless Power Grid Verification Using an Approximate Inverse Technique

    E-Print Network [OSTI]

    Najm, Farid N.

    Fast Vectorless Power Grid Verification Using an Approximate Inverse Technique Nahi H. Abdul Ghani Department of ECE University of Toronto Toronto, Ontario, Canada f.najm@utoronto.ca ABSTRACT Power grid Aids General Terms Performance, Algorithms, Verification Keywords Power grid, voltage drop, approximate

  6. Power Grid Correction Using Sensitivity Analysis Meric Aydonat

    E-Print Network [OSTI]

    Najm, Farid N.

    Power Grid Correction Using Sensitivity Analysis Meric¸ Aydonat Department of ECE University University of Toronto Toronto, Ontario, Canada E-mail: f.najm@utoronto.ca Abstract--Power grid voltage verification has become a crucial step in reliable high-speed chip design. Power grid verification

  7. Power Systems Integration Laboratory (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

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

  8. SensorGrid: Integrating Sensor Networks and Grid Computing Chen-Khong Tham1

    E-Print Network [OSTI]

    Melbourne, University of

    SensorGrid: Integrating Sensor Networks and Grid Computing Chen-Khong Tham1 and Rajkumar Buyya2 Keywords: Sensors, Sensor Networks, Grid computing, SensorML, SensorWeb. 1. Introduction Recent advances in electronic circuit miniaturization and micro-electromechanical systems (MEMS) have led to the creation

  9. Smart Grid Integrity Attacks: Characterizations and Countermeasures

    SciTech Connect (OSTI)

    Annarita Giani; Eilyan Bitar; Miles McQueen; Pramod Khargonekar; Kameshwar Poolla

    2011-10-01

    Real power injections at loads and generators, and real power flows on selected lines in a transmission network are monitored, transmitted over a SCADA network to the system operator, and used in state estimation algorithms to make dispatch, re-balance and other energy management system [EMS] decisions. Coordinated cyber attacks of power meter readings can be arranged to be undetectable by any bad data detection algorithm. These unobservable attacks present a serious threat to grid operations. Of particular interest are sparse attacks that involve the compromise of a modest number of meter readings. An efficient algorithm to find all unobservable attacks [under standard DC load flow approximations] involving the compromise of exactly two power injection meters and an arbitrary number of power meters on lines is presented. This requires O(n2m) flops for a power system with n buses and m line meters. If all lines are metered, there exist canonical forms that characterize all 3, 4, and 5-sparse unobservable attacks. These can be quickly detected in power systems using standard graph algorithms. Known secure phase measurement units [PMUs] can be used as countermeasures against an arbitrary collection of cyber attacks. Finding the minimum number of necessary PMUs is NP-hard. It is shown that p + 1 PMUs at carefully chosen buses are sufficient to neutralize a collection of p cyber attacks.

  10. Development of a low-cost integrated 20-kW-AC solar tracking subarray for grid-connected PV power system applications. Final technical report

    SciTech Connect (OSTI)

    Stern, M.; Duran, G.; Fourer, G.; Mackamul, K.; Whalen, W.; Loo, M. van; West, R.

    1998-06-01

    This report chronicles Utility Power Group's (UPG) successful two-year Photovoltaic Manufacturing Technology (PVMaT) Phase 4A1 work effort which began in July, 1995. During this period, UPG completed design, fabrication, testing and demonstration of a modular and fully integrated 15-kW-ac, solar tracking PV power system sub-array. The two key and innovative components which were developed are a Modular Panel which optimizes factory assembly of PV modules into a large area, field-deployable, structurally-integrated PV panel, and an Integrated Power Processing Unit which combines all dc and ac power collection, conversion and control functions within a single, field-deployable structurally-integrated electrical enclosure. These two key sub-array elements, when combined with a number of other electrical, mechanical, and structural components, create a low-cost and high-performance PV power system. This system, or sub-array, can be deployed in individual units, or paralleled with any number of other sub-arrays, to construct multi-megawatt P fields. 21 figs.

  11. Index Terms --Smart grid; power engineering education; power engineering curriculum; power engineering re-

    E-Print Network [OSTI]

    1 Index Terms -- Smart grid; power engineering education; power engineering curriculum; power engineering re- sources; power engineering workforce. Abstract -- A widely supported effort to modernize the United States power system has led to an engineering initiative va- riously known as `smart grid

  12. Risk Analysis, Grid Integration, and Resiliency - State and Federal...

    Office of Environmental Management (EM)

    Modeling and Analysis David Ortiz Deputy Assistant Secretary OE-50 Advanced Grid Integration Hank Kenchington Deputy Assistant Secretary 3 Office of Electricity...

  13. Renewable Electricity Grid Integration Roadmap for Mexico: Supplement...

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

    FOR LOW EMISSION DEVELOPMENT STRATEGIES Renewable Electricity Grid Integration Roadmap for Mexico: Supplement to the IEA Expert Group Report on Recommended Practices for...

  14. Machine Learning for the New York City Power Grid

    E-Print Network [OSTI]

    Rudin, Cynthia

    1 Machine Learning for the New York City Power Grid Cynthia Rudin, David Waltz, Roger N. Anderson are sufficiently accurate to assist in maintaining New York City's electrical grid. Index Terms--applications of machine learning, electrical grid, smart grid, knowledge discovery, supervised ranking, computational

  15. Integration of Smart Home Data with Simulated Smart Grid

    E-Print Network [OSTI]

    Collins, Gary S.

    Integration of Smart Home Data with Simulated Smart Grid Introduction Data was generated using was simulated in the smart grid in RTDS. Objective Objective was to monitors or get real-time data about after getting the data. Objective is to model a dynamic load within simulated smart grid with live data

  16. EMPORA 1 + 2 EMobile Power Austria (Smart Grid Project) (Salzburg...

    Open Energy Info (EERE)

    EMPORA 1 + 2 EMobile Power Austria (Smart Grid Project) (Salzburg, Austria) Jump to: navigation, search Project Name EMPORA 1 + 2 EMobile Power Austria Country Austria Headquarters...

  17. In the OSTI Collections: Keeping Power Grids Stable | OSTI, US...

    Office of Scientific and Technical Information (OSTI)

    methods help gauge their influence on the grid's stability to power fluctuations. (b) The green plane represents deviations from the forecast of power output from two...

  18. A Data Analytics Framework for Smart Grids: Spatio-temporal Wind Power Analysis and Synchrophasor Data Mining

    E-Print Network [OSTI]

    Zhang, Junshan

    A Data Analytics Framework for Smart Grids: Spatio-temporal Wind Power Analysis and Synchrophasor-temporal wind power analysis for wind generation forecast and integration, and II) data mining and information fusion of synchrophasor measurements toward secure power grids. Part I is centered around wind power

  19. Power Grid Vulnerability to Geographically Correlated Failures

    E-Print Network [OSTI]

    Shepard, Kenneth

    potential locations for grid monitoring, and hence, will have impact on the deployment of the smart-grid

  20. A Formal Model for Verifying the Impact of Stealthy Attacks on Optimal Power Flow in Power Grids

    E-Print Network [OSTI]

    Wang, Yongge

    - mal Power Flow; Formal Model 1. INTRODUCTION Power system control centers employ a numberA Formal Model for Verifying the Impact of Stealthy Attacks on Optimal Power Flow in Power Grids the integrity of OPF and undermine the economic and secure system operation. We present a formal verification

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

    SciTech Connect (OSTI)

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

    2015-01-01

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

  2. Structural Vulnerability Analysis of Electric Power Distribution Grids

    E-Print Network [OSTI]

    Koc, Yakup; Warnier, Martijn; Kumar, Tarun

    2015-01-01

    Power grid outages cause huge economical and societal costs. Disruptions in the power distribution grid are responsible for a significant fraction of electric power unavailability to customers. The impact of extreme weather conditions, continuously increasing demand, and the over-ageing of assets in the grid, deteriorates the safety of electric power delivery in the near future. It is this dependence on electric power that necessitates further research in the power distribution grid security assessment. Thus measures to analyze the robustness characteristics and to identify vulnerabilities as they exist in the grid are of utmost importance. This research investigates exactly those concepts- the vulnerability and robustness of power distribution grids from a topological point of view, and proposes a metric to quantify them with respect to assets in a distribution grid. Real-world data is used to demonstrate the applicability of the proposed metric as a tool to assess the criticality of assets in a distribution...

  3. 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...

  4. IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. X, NO. Y, MONTH 2012 1 Volatility of Power Grids under Real-Time Pricing

    E-Print Network [OSTI]

    Bhatia, Sangeeta

    IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. X, NO. Y, MONTH 2012 1 Volatility of Power Grids under for engineering modern power grids with the capacity to integrate renewable energy resources at large scale of the dynamics of supply, demand, and clearing prices in power systems with real-time retail pricing

  5. Statistical classification of cascading failures in power grids

    E-Print Network [OSTI]

    Pfitzner, Rene

    We introduce a new microscopic model of the outages in transmission power grids. This model accounts for the automatic response of the grid to load fluctuations that take place on the scale of minutes, when the optimum ...

  6. Transmission and Grid Integration: Electricity, Resources, & Building Systems Integration (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2009-09-01

    Factsheet developed to describe the activites of the Transmission and Grid Integration Group within NREL's Electricity, Resources, and Buildings Systems Integration center.

  7. Transmission and Grid Integration: Electricity, Resources, & Building Systems Integration (Fact Sheet)

    SciTech Connect (OSTI)

    2009-09-01

    Factsheet developed to describe the activities of the Transmission and Grid Integration Group within NREL's Electricity, Resources, and Buildings Systems Integration center.

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

    SciTech Connect (OSTI)

    Ray, C.; Huang, Z.

    2007-01-01

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

  9. Smart Grid Savings and Grid Integration of Renewables in Idaho

    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 RankADVANCED MANUFACTURINGEnergy BillsNo.Hydrogen4 »DigitalanDepartmentSecondarySmart GridSmart Grid 1 Smart

  10. Journal of Power Sources xxx (2005) xxxxxx Vehicle-to-grid power implementation: From stabilizing the

    E-Print Network [OSTI]

    Firestone, Jeremy

    2005-01-01

    Journal of Power Sources xxx (2005) xxx­xxx Vehicle-to-grid power implementation: From stabilizing December 2004 Abstract Vehicle-to-grid power (V2G) uses electric-drive vehicles (battery, fuel cell; Vehicle-to-grid power; Ancillary services; Renewable energy; Wind power 1. Introduction This article

  11. Coordination of Cloud Computing and Smart Power Grids

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    Coordination of Cloud Computing and Smart Power Grids Amir-Hamed Mohsenian-Rad and Alberto Leon analysis in smart grid and explain how these problems can be related. Simulation results based centers, and smart grid are illustrated in Fig. 1. On the one hand, data centers are key elements

  12. Wind Power Integration via Aggregator-Consumer Coordination: A Game Theoretic Approach

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    the balance between load and generation in the power grid at all times [2]. Moreover, wind generation is nonWind Power Integration via Aggregator-Consumer Coordination: A Game Theoretic Approach Chenye Wu@ie.cuhk.edu.hk Abstract--Due to the stochastic nature of wind power, its large-scale integration into the power grid

  13. NREL: News - INL and NREL Demonstrate Power Grid Simulation at...

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

    Bookmark and Share Printable Version News Release NR-1915 INL and NREL Demonstrate Power Grid Simulation at a Distance Capability makes national laboratory assets accessible...

  14. Journal of Power Sources xxx (2005) xxxxxx Vehicle-to-grid power fundamentals: Calculating capacity

    E-Print Network [OSTI]

    Firestone, Jeremy

    2005-01-01

    Journal of Power Sources xxx (2005) xxx­xxx Vehicle-to-grid power fundamentals: Calculating opens for "vehicle-to-grid" (V2G) power. This article defines the three vehicle types that can produce V. This article develops equations to calculate the capacity for grid power from three types of electric drive

  15. Cost-minimized combinations of wind power, solar power and electrochemical storage, powering the grid up to 99.9% of the time

    E-Print Network [OSTI]

    Firestone, Jeremy

    Cost-minimized combinations of wind power, solar power and electrochemical storage, powering the grid up to 99.9% of the time Cory Budischak a,b,*, DeAnna Sewell c , Heather Thomson c , Leon Mach d, Newark, DE 19713, USA c Center for Carbon-Free Power Integration, School of Marine Science and Policy

  16. Sixth Northwest Conservation and Electric Power Plan Appendix K: The Smart Grid

    E-Print Network [OSTI]

    Sixth Northwest Conservation and Electric Power Plan Appendix K: The Smart Grid Introduction..................................................................................................................................... 1 Components of the Smart Grid.............................................................................................................. 2 Benefits from the Smart grid

  17. Approaches To Integrating A HIgh Penertration Of Solar PV and CPV Onto The Electrical Grid

    E-Print Network [OSTI]

    Hill, Steven Craig

    2013-01-01

    63  Off?Grid (Stand?Alone) PV Power System not well established. OFF-GRID (STAND-ALONE) PV POWER SYSTEMvariability characteristics of off-grid PV power systems and

  18. Impact of network topology on synchrony of oscillatory power grids

    SciTech Connect (OSTI)

    Rohden, Martin; Sorge, Andreas; Witthaut, Dirk; Timme, Marc; Faculty of Physics, Georg August Universität Göttingen, Göttingen

    2014-03-15

    Replacing conventional power sources by renewable sources in current power grids drastically alters their structure and functionality. In particular, power generation in the resulting grid will be far more decentralized, with a distinctly different topology. Here, we analyze the impact of grid topologies on spontaneous synchronization, considering regular, random, and small-world topologies and focusing on the influence of decentralization. We model the consumers and sources of the power grid as second order oscillators. First, we analyze the global dynamics of the simplest non-trivial (two-node) network that exhibit a synchronous (normal operation) state, a limit cycle (power outage), and coexistence of both. Second, we estimate stability thresholds for the collective dynamics of small network motifs, in particular, star-like networks and regular grid motifs. For larger networks, we numerically investigate decentralization scenarios finding that decentralization itself may support power grids in exhibiting a stable state for lower transmission line capacities. Decentralization may thus be beneficial for power grids, regardless of the details of their resulting topology. Regular grids show a specific sharper transition not found for random or small-world grids.

  19. New Report: Integrating Variable Wind Energy into the Grid |...

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

    in 18 countries who, together, are responsible for integrating 72 percent of the wind energy world-wide into their grids. Alstom presented some of their findings in a webinar in...

  20. Grid Integration of Aggregated Demand Response, Part I: Load Availability

    E-Print Network [OSTI]

    LBNL-6417E Grid Integration of Aggregated Demand Response, Part I: Load Availability Profiles Resources 4 #12;#12;#12;CHAPTER 3: Results: DR Profiles 3.1 Projected Demand Response Availability in 2020

  1. Cascade Failures from Distributed Generation in Power Grids

    E-Print Network [OSTI]

    Scala, Antonio; Scoglio, Caterina

    2012-01-01

    Power grids are nowadays experiencing a transformation due to the introduction of Distributed Generation based on Renewable Sources. At difference with classical Distributed Generation, where local power sources mitigate anomalous user consumption peaks, Renewable Sources introduce in the grid intrinsically erratic power inputs. By introducing a simple schematic (but realistic) model for power grids with stochastic distributed generation, we study the effects of erratic sources on the robustness of several IEEE power grid test networks with up to 2000 buses. We find that increasing the penetration of erratic sources causes the grid to fail with a sharp transition. We compare such results with the case of failures caused by the natural increasing power demand.

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

    SciTech Connect (OSTI)

    S.M. Bragg-Sitton; R. Boardman

    2014-12-01

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

  3. Adaptive Energy Forecasting and Information Diffusion for Smart Power Grids

    E-Print Network [OSTI]

    Hwang, Kai

    1 Adaptive Energy Forecasting and Information Diffusion for Smart Power Grids Yogesh Simmhan. One of the characteristic applications of Smart Grids is demand response optimization (DR). The goal of DR is to use the power consumption time series data to reliable forecast the future consumption

  4. Green Energy Workshop Student Posters Semantic Complex Event Processing for Smart Grid Information

    E-Print Network [OSTI]

    Hwang, Kai

    for Smart Grid Information Integration and Demand Management Qunzhi Zhou, Yogesh of the power grid to a Smart Grid. The benefits of Smart Grid include demand Grid Demonstration Project. We define an ontology model for Smart Grid

  5. Grid Security and Integration with Minimal Performance Degradation

    E-Print Network [OSTI]

    Sanyal, Sugata; Abraham, Ajith; Paprzycki, Marcin

    2011-01-01

    Computational grids are believed to be the ultimate framework to meet the growing computational needs of the scientific community. Here, the processing power of geographically distributed resources working under different ownerships, having their own access policy, cost structure and the likes, is logically coupled to make them perform as a unified resource. The continuous increase of availability of high-bandwidth communication as well as powerful computers built of low-cost components further enhance chances of computational grids becoming a reality. However, the question of grid security remains one of the important open research issues. Here, we present some novel ideas about how to implement grid security, without appreciable performance degradation in grids. A suitable alternative to the computationally expensive encryption is suggested, which uses a key for message authentication. Methods of secure transfer and exchange of the required key(s) are also discussed.

  6. Vehicle-to-Grid Power: Battery, Hybrid, and Fuel Cell Vehicles as Resources for Distributed Electric Power in California

    E-Print Network [OSTI]

    Kempton, Willett; Tomic, Jasna; Letendre, Steven; Brooks, Alec; Lipman, Timothy

    2001-01-01

    and of the electric power grid, yet analysts, industries,be realized only if the power grid operator has control overplugged in when the power grid needs them. A. The California

  7. 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

  8. RTDS-Based Design and Simulation of Distributed P-Q Power Resources in Smart Grid

    E-Print Network [OSTI]

    Taylor, Zachariah David

    2014-01-01

    Danish island of Bornholm power grid," in Proc. of the IEEEsimulate the operation of power grid more accurately. In [performance of the power distribution grid in at least four

  9. Assessing I-Grid(TM) web-based monitoring for power quality and reliability benchmarking

    E-Print Network [OSTI]

    Divan, Deepak; Brumsickle, William; Eto, Joseph

    2003-01-01

    not affect the regional power grid. Page 7 of 10 January 23,Paradigm in Distribution Grid Power Quality And ReliabilitySheehan 2002]. The I-Grid power quality and reliability

  10. prismprismNo 258/February 2011 Smarter Grid reSearch centre powerS up

    E-Print Network [OSTI]

    Mottram, Nigel

    prismprismNo 258/February 2011 Smarter Grid reSearch centre powerS up The University has unveiled' technologies, from advanced power grids to electric cars and household appliances. The Power Network companies including ScottishPower and Scottish and Southern Energy, with support from Scottish Enterprise

  11. SunEdison Photovoltaic Grid Integration Evaluation: Cooperative Research and Development Final Report, CRADA Number CRD-08-302

    SciTech Connect (OSTI)

    Kroposki, B.

    2012-09-01

    Under this Agreement, NREL will work with SunEdison to monitor and analyze the performance of photovoltaic (PV) systems as they relate to grid integration. Initially this project will examine the performance of PV systems with respect to evaluating the benefits and impacts on the electric power grid.

  12. Supplementary Information: The Grid ENabled Integrated Earth system modelling (GENIE)

    E-Print Network [OSTI]

    Edwards, Neil

    Supplementary Information: The Grid ENabled Integrated Earth system modelling (GENIE) framework T Integrated Earth system modelling (GENIE) frame- work supports modularity (i.e. interchangeable components to produce a range of com- putationally efficient Earth system models (ESMs) that span a spectrum from

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

    E-Print Network [OSTI]

    Heinemann, Detlev

    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

  14. Florida Power and Light Comments on Smart Grid Request For Information...

    Office of Environmental Management (EM)

    Florida Power and Light Comments on Smart Grid Request For Information (RFI): Addressing Policy & Logistical Challenges. Florida Power and Light Comments on Smart Grid Request For...

  15. Architecture of the Florida Power Grid as a Complex Network

    E-Print Network [OSTI]

    Xu, Yan; Rikvold, Per Arne

    2013-01-01

    We study the Florida high-voltage power grid as a technological network embedded in space. Measurements of geographical lengths of transmission lines, the mixing of generators and loads, the weighted clustering coefficient, as well as the organization of edge conductance weights show a complex architecture quite different from random-graph models usually considered. In particular, we introduce a parametrized mixing matrix to characterize the mixing pattern of generators and loads in the Florida Grid, which is intermediate between the random mixing case and the semi-bipartite case where generator-generator transmission lines are forbidden. Our observations motivate an investigation of optimization (design) principles leading to the structural organization of power grids. We thus propose two network optimization models for the Florida Grid as a case study. Our results show that the Florida Grid is optimized not only by reducing the construction cost (measured by the total length of power lines), but also throug...

  16. Approaches To Integrating A HIgh Penertration Of Solar PV and CPV Onto The Electrical Grid

    E-Print Network [OSTI]

    Hill, Steven Craig

    2013-01-01

    Independence & Security Act, Title XIII- Smart Grid, Sectiongrid operations Secure – integrated multi-faceted securityIndependence & Security act, Title XIII-Smart Grid, Section

  17. Comparative analysis of existing models for power-grid synchronization

    E-Print Network [OSTI]

    Nishikawa, Takashi

    2015-01-01

    The dynamics of power-grid networks is becoming an increasingly active area of research within the physics and network science communities. The results from such studies are typically insightful and illustrative, but are often based on simplifying assumptions that can be either difficult to assess or not fully justified for realistic applications. Here we perform a comprehensive comparative analysis of three leading models recently used to study synchronization dynamics in power-grid networks -- a fundamental problem of practical significance given that frequency synchronization of all power generators in the same interconnection is a necessary condition for a power grid to operate. We show that each of these models can be derived from first principles within a common framework based on the classical model of a generator, thereby clarifying all assumptions involved. This framework allows us to view power grids as complex networks of coupled second-order phase oscillators with both forcing and damping terms. U...

  18. Sandia National Laboratories - Grid Integration Collaborations

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

    - Solar Electric Power Association - Utility Wind Interest Group Utilities - PNM - NV Energy - Southern California Edison - Arizona Public Service - Florida Power & Light - Salt...

  19. Interim Test Procedures for Evaluating Electrical Performance and Grid Integration of Vehicle-to-Grid Applications

    SciTech Connect (OSTI)

    Chakraborty, S.; Kramer, W.; Kroposki, B.; Martin, G.; McNutt, P.; Kuss, M.; Markel, T.; Hoke, A.

    2011-06-01

    The objective of this report is to provide a test plan for V2G testing. The test plan is designed to test and evaluate the vehicle's power electronics capability to provide power to the grid, and to evaluate the vehicle's ability to connect and disconnect from the utility according to a subset of the IEEE Std. 1547 tests.

  20. GridPACK Toolkit for Developing Power Grid Simulations on High Performance Computing Platforms

    SciTech Connect (OSTI)

    Palmer, Bruce J.; Perkins, William A.; Glass, Kevin A.; Chen, Yousu; Jin, Shuangshuang; Callahan, Charles D.

    2013-11-30

    This paper describes the GridPACK™ framework, which is designed to help power grid engineers develop modeling software capable of running on todays high performance computers. The framework contains modules for setting up distributed power grid networks, assigning buses and branches with arbitrary behaviors to the network, creating distributed matrices and vectors, using parallel linear and non-linear solvers to solve algebraic equations, and mapping functionality to create matrices and vectors based on properties of the network. In addition, the framework contains additional functionality to support IO and to manage errors.

  1. Statistical Estimation of Leakage-Induced Power Grid Voltage Drop Considering Within-Die Process Variations

    E-Print Network [OSTI]

    Najm, Farid N.

    Statistical Estimation of Leakage-Induced Power Grid Voltage Drop Considering Within-Die Process the power grid, the grid develops large voltage drops, which is an unavoidable background level of noise on the grid. We develop techniques for estimation of the statistics of the leakage-induced power grid voltage

  2. Statistical Estimation of LeakageInduced Power Grid Voltage Drop Considering WithinDie Process Variations #

    E-Print Network [OSTI]

    Najm, Farid N.

    Statistical Estimation of Leakage­Induced Power Grid Voltage Drop Considering Within­Die Process the power grid, the grid develops large voltage drops, which is an unavoidable background level of noise on the grid. We develop techniques for estimation of the statistics of the leakage­induced power grid voltage

  3. Demonstration of HVAC chiller control for power grid frequency regulation

    E-Print Network [OSTI]

    Su, Po-An (Po-An Leo)

    2015-01-01

    Secondary frequency regulation is a necessary electric grid ancillary service that balances electric power system supply and demand on short time intervals of seconds to minutes. Commercial HVAC chillers may be well ...

  4. Power conversion architecture for grid interface at high switching frequency

    E-Print Network [OSTI]

    Lim, Seungbum

    This paper presents a new power conversion architecture for single-phase grid interface. The proposed architecture is suitable for realizing miniaturized ac-dc converters operating at high frequencies (HF, above 3 MHz) and ...

  5. Machine Learning for the New York City Power Grid

    E-Print Network [OSTI]

    Rudin, Cynthia

    Power companies can benefit from the use of knowledge discovery methods and statistical machine learning for preventive maintenance. We introduce a general process for transforming historical electrical grid data into ...

  6. Efficient algorithm for online N - 2 power grid contingency selection

    E-Print Network [OSTI]

    Kaplunovich, Petr A. (Petr Alexandrovich)

    2014-01-01

    Multiple element outages (N - k contingencies) have caused some of the most massive blackouts and disturbances in the power grid. Such outages affect millions of people and cost the world economy billions of dollars annually. ...

  7. REAP Islanded Grid Wind Power Conference

    Broader source: Energy.gov [DOE]

    Hosted by Renewable Energy Alaska Project, this three-day conference will show attendees how to learn, network, and share information on wind systems in island and islanded grid environments through expert panel discussions, stakeholder dialogue, and training.

  8. REAP Islanded Grid Wind Power Conference

    Broader source: Energy.gov [DOE]

    Hosted by Renewable Energy Alaska Project, this three-day conference will show attendees how to learn, network, and share information on wind systems in island and islanded grid environments...

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

    SciTech Connect (OSTI)

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

    2014-12-24

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

  10. Software Based Barriers To Integration Of Renewables To The Future Distribution Grid

    E-Print Network [OSTI]

    Stewart, Emma

    2014-01-01

    To  Integration  of   Renewables  To  The  Future  TO INTEGRATION OF RENEWABLES TO THE FUTURE DISTRIBUTION GRIDto the integration of renewables to the distribution grid.

  11. A Real-Time Testbed Environment for Cyber-Physical Security on the Power Grid

    E-Print Network [OSTI]

    Koutsandria, Georgia; Gentz, Reinhard; Jamei, Mahdi; Peisert, Sean; Scaglione, Anna; McParland, Chuck

    2015-01-01

    Physical Security on the Power Grid Georgia KoutsandriaSecurity Testbeds: Architecture, Application, and Evaluation for Smart Grid.and security of cyber-physical systems (CPSs), such as the power grid,

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

    SciTech Connect (OSTI)

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

    2007-04-01

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

  13. Renewable Energy Penetration on the power Grid Fall / 2010

    E-Print Network [OSTI]

    Stuart, Steven J.

    ECE 420 Renewable Energy Penetration on the power Grid Fall / 2010 Instructor: Dr. E. B. Makram: TBA Text: Renewable Energy Systems M. Godoy Simoes and Felix A. Farret Attendance: Test attendance): Principles of Renewable Sources of Energy and Electric Power: basic definitions of electrical power

  14. A Hybrid Multiagent Framework with Q-Learning for Power Grid Systems Restoration

    E-Print Network [OSTI]

    Zhang, Minjie

    . INTRODUCTION In an electricity network, catastrophic disturbances involv- ing loss of generators can lead following catastrophic disturbances involving loss of generators. This framework integrates the advantages such failures, it is necessary to include restoration approaches in power grid systems. The general principle

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

    E-Print Network [OSTI]

    Rudin, Cynthia

    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

  16. Transportation and Stationary Power Integration Workshop Session...

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

    Transportation and Stationary Power Integration Workshop Agenda, October 27, 2008, Phoenix, Arizonia Transportation and Stationary Power Integration: Workshop Proceedings...

  17. False Data Injection Attacks against State Estimation in Electric Power Grids

    E-Print Network [OSTI]

    Young, R. Michael

    @cs.unc.edu Abstract--A power grid is a complex system connecting electric power generators to consumers through power estimate the power grid state through analysis of meter measure- ments and power system models. Various malicious attacks. I. INTRODUCTION A power grid is a complex system connecting a variety of electric power

  18. Cascade Failure in a Phase Model of Power Grids

    E-Print Network [OSTI]

    Sakaguchi, Hidetsugu

    2012-01-01

    We propose a phase model to study cascade failure in power grids composed of generators and loads. If the power demand is below a critical value, the model system of power grids maintains the standard frequency by feedback control. On the other hand, if the power demand exceeds the critical value, an electric failure occurs via step out (loss of synchronization) or voltage collapse. The two failures are incorporated as two removal rules of generator nodes and load nodes. We perform direct numerical simulation of the phase model on a scale-free network and compare the results with a mean-field approximation.

  19. Overview of Vectorless/Early Power Grid Verification Special Session Paper

    E-Print Network [OSTI]

    Najm, Farid N.

    Overview of Vectorless/Early Power Grid Verification Special Session Paper Farid N. Najm ECE. In many cases, and certainly during early power grid design, they may be simply unknown because as the package/board parasitic RLC components, as simply the power grid. A well-designed power grid should guaran

  20. Statistical Estimation of Circuit Timing Vulnerability Due to Leakage-Induced Power Grid Voltage Drop

    E-Print Network [OSTI]

    Najm, Farid N.

    Statistical Estimation of Circuit Timing Vulnerability Due to Leakage-Induced Power Grid Voltage voltage drops on the power grid that can affect circuit timing. We propose a statistical analysis supply voltage to circuit devices is referred to as the power grid. The consequences of power grid

  1. U.S. Energy Infrastructure Investment: Large-Scale Integrated Smart Grid

    E-Print Network [OSTI]

    U.S. Energy Infrastructure Investment: Large-Scale Integrated Smart Grid Solutions with High: LargeScale Integrated Smart Grid Solutions with High Penetration of Renewable Resources, Dispersed- ing electricity grid. Much attention is being given to smart grid development in the U.S. and around

  2. Data Quality Assurance and Performance Measurement of Data Mining for Preventive Maintenance of Power Grid

    E-Print Network [OSTI]

    Rudin, Cynthia

    Ensuring reliability as the electrical grid morphs into the "smart grid" will require innovations in how we version of NOVA has been deployed for the power grid in New York City, and it is able to eval- uate- able and intelligent electricity distribution and transmission system, i.e., power grid. The smart grid

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

    E-Print Network [OSTI]

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

  4. For the Grid and Through the Grid: The Role of Power Line Communications in the Smart Grid

    E-Print Network [OSTI]

    Galli, Stefano; Wang, Zhifang

    2010-01-01

    Is Power Line Communication (PLC) a good candidate for Smart Grid applications? The objective of this paper is to address this important question. To do so we provide an overview of what PLC can deliver today by surveying its history and describing the most recent technological advances in the area. We then address Smart Grid applications as instances of sensor networking and network control problems and discuss the main conclusion one can draw from the literature on these subjects. The application scenario of PLC within the Smart Grid is then analyzed in detail. Since a necessary ingredient of network planning is modeling, we also discuss two aspects of engineering modeling that relate to our question. The first aspect is modeling the PLC channel through fading models. The second aspect we review is the Smart Grid control and traffic modeling problem which allows us to achieve a better understanding of the communications requirements. Finally, this paper reports recent studies on the electrical and topologic...

  5. Multiple Timescale Dispatch and Scheduling for Stochastic Reliability in Smart Grids with Wind Generation Integration

    E-Print Network [OSTI]

    He, Miao; Zhang, Junshan

    2010-01-01

    Integrating volatile renewable energy resources into the bulk power grid is challenging, due to the reliability requirement that at each instant the load and generation in the system remain balanced. In this study, we tackle this challenge for smart grid with integrated wind generation, by leveraging multi-timescale dispatch and scheduling. Specifically, we consider smart grids with two classes of energy users - traditional energy users and opportunistic energy users (e.g., smart meters or smart appliances), and investigate pricing and dispatch at two timescales, via day-ahead scheduling and realtime scheduling. In day-ahead scheduling, with the statistical information on wind generation and energy demands, we characterize the optimal procurement of the energy supply and the day-ahead retail price for the traditional energy users; in realtime scheduling, with the realization of wind generation and the load of traditional energy users, we optimize real-time prices to manage the opportunistic energy users so as...

  6. Enhancing Power Grid Stability through Analytics

    E-Print Network [OSTI]

    Lakoba, Taras I.

    exploit renewable resources: wind in great plains, solar in southwest. #12;C.L. DeMarco University-Data" Acknowledgements: · Work supported by National Science Foundation and Department of Energy, in collaboration 23, 2013 8 Voltage Instability · Motivation: among challenges to reliable grid operation is avoidance

  7. Power Jobs: The Smart Grid Workforce

    Broader source: Energy.gov [DOE]

    “Really anyone who likes science or math, we’ve probably got a job for you,” said Justin Johnson, Senior Director of Engineering at Oncor, one of the country’s largest transmission and distribution utilities based in Dallas, Texas. Find out more about the exciting career opportunities smart grid technology is offering.

  8. Grid Integration and the Carrying Capacity of the U.S. Grid to Incorporate Variable Renewable Energy

    SciTech Connect (OSTI)

    Cochran, Jaquelin; Denholm, Paul; Speer, Bethany; Miller, Mackay

    2015-04-23

    In the United States and elsewhere, renewable energy (RE) generation supplies an increasingly large percentage of annual demand, including nine U.S. states where wind comprised over 10% of in-state generation in 2013. This white paper summarizes the challenges to integrating increasing amounts of variable RE, identifies emerging practices in power system planning and operation that can facilitate grid integration, and proposes a unifying concept—economic carrying capacity—that can provide a framework for evaluating actions to accommodate higher penetrations of RE. There is growing recognition that while technical challenges to variable RE integration are real, they can generally be addressed via a variety of solutions that vary in implementation cost. As a result, limits to RE penetration are primarily economic, driven by factors that include transmission and the flexibility of the power grid to balance supply and demand. This limit can be expressed as economic carrying capacity, or the point at which variable RE is no longer economically competitive or desirable to the system or society.

  9. False Data Injection Attacks against State Estimation in Electric Power Grids

    E-Print Network [OSTI]

    Reiter, Michael

    @cs.unc.edu ABSTRACT A power grid is a complex system connecting electric power generators to consumers through power estimate the power grid state through analysis of meter measurements and power system models. Various using IEEE test systems. Our results indicate that security protection of the electric power grid must

  10. Prepping Power Engineers for the Smart Grid

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration and Washington State University have designed a special program that’s preparing the power workforce for the nation’s smarter energy future.

  11. Wind and Solar on the Power Grid: Myths and Misperceptions, Greening...

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

    SOLAR ON THE POWER GRID: MYTHS AND MISPERCEPTIONS GREENING THE GRID Wind and solar are inherently more variable and uncertain than the traditional dispatchable thermal and hydro...

  12. Synchronization Algorithms for Co-Simulation of Power Grid and Communication Networks

    SciTech Connect (OSTI)

    Ciraci, Selim; Daily, Jeffrey A.; Agarwal, Khushbu; Fuller, Jason C.; Marinovici, Laurentiu D.; Fisher, Andrew R.

    2014-09-11

    The ongoing modernization of power grids consists of integrating them with communication networks in order to achieve robust and resilient control of grid operations. To understand the operation of the new smart grid, one approach is to use simulation software. Unfortunately, current power grid simulators at best utilize inadequate approximations to simulate communication networks, if at all. Cooperative simulation of specialized power grid and communication network simulators promises to more accurately reproduce the interactions of real smart grid deployments. However, co-simulation is a challenging problem. A co-simulation must manage the exchange of informa- tion, including the synchronization of simulator clocks, between all simulators while maintaining adequate computational perfor- mance. This paper describes two new conservative algorithms for reducing the overhead of time synchronization, namely Active Set Conservative and Reactive Conservative. We provide a detailed analysis of their performance characteristics with respect to the current state of the art including both conservative and optimistic synchronization algorithms. In addition, we provide guidelines for selecting the appropriate synchronization algorithm based on the requirements of the co-simulation. The newly proposed algorithms are shown to achieve as much as 14% and 63% im- provement, respectively, over the existing conservative algorithm.

  13. Social Networking Reduces Peak Power Consumption in Smart Grid

    E-Print Network [OSTI]

    Wu, Dapeng Oliver

    in buildings represents approximately 74% of the nation's electricity consumption [1]. However, electricity the peak power consumption of schedulable jobs of electrical appliances of users under de- lay requirements1 Social Networking Reduces Peak Power Consumption in Smart Grid Qiuyuan Huang, Xin Li, Jing Zhao

  14. Solar Power and the Electric Grid, Energy Analysis (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-03-01

    In today's electricity generation system, different resources make different contributions to the electricity grid. This fact sheet illustrates the roles of distributed and centralized renewable energy technologies, particularly solar power, and how they will contribute to the future electricity system. The advantages of a diversified mix of power generation systems are highlighted.

  15. THE SPACE POWER GRID Narayanan Komerath, Nicholas Boechler

    E-Print Network [OSTI]

    the constellation with satellites augmented with solar collectors and converters. In Phase 3, large, ultra-light solar collectors in medium-height orbits (a few thousand Figure 1: Phases of the Space Power Grid 1: Augmented satellites: A-SPG 4. Phase 3: Ultralight collector beams sunlight to SPG: Full Space Solar Power

  16. How Stochastic Network Calculus Concepts Help Green the Power Grid

    E-Print Network [OSTI]

    Wierman, Adam

    . on a grid-scale battery project for renewable energy storage, which will lead to the development of a power@tsinghua.edu.cn Abstract--The renewable energy generation such as solar and wind will constitute an important part and build a stochastic model for the power supply reliability with different renewable energy configurations

  17. Reliability Considerations from Integration of Smart Grid

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested PartiesBuildingBudgetFinancialReliability Considerations from the Integration

  18. NREL + SolarCity: Maximizing Solar Power on Electrical Grids

    SciTech Connect (OSTI)

    Hannegan, Bryan; Hanley, Ryan; Symko-Davies, Martha

    2015-06-03

    Learn how NREL is partnering with SolarCity to study how to better integrate rooftop solar onto the grid. The work includes collaboration with the Hawaiian Electric Companies (HECO) to analyze high-penetration solar scenarios using advanced modeling and inverter testing at the Energy Systems Integration Facility (ESIF) on NREL’s campus. Results to date have been so promising that HECO has more than doubled the amount of rooftop solar it allows on its grid, showing utilities across the country that distributed solar is not a liability for reliability—and can even be an asset.

  19. Management of a Smart Grid with Controlled-Delivery of Discrete Power Levels

    E-Print Network [OSTI]

    Rojas-Cessa, Roberto

    Management of a Smart Grid with Controlled-Delivery of Discrete Power Levels Roberto Rojas to power amounts. These two properties, although functional and practical, expose the grid to overload as a controlled-delivery power grid. In this grid, the customer's addresses are embedded in the electrical signal

  20. A MultiPhase Power Flow Model for Grid Analysis A. P. Sakis Meliopoulos

    E-Print Network [OSTI]

    A MultiPhase Power Flow Model for µµµµGrid Analysis A. P. Sakis Meliopoulos School of Electrical power system with distributed energy sources forming a microgrid (µGrid). The µGrid is a radial multiphase power flow analysis method that provides exact solution to the operation of the µGrid under steady

  1. Multigrid-like Technique for Power Grid Analysis Joseph N. Kozhaya

    E-Print Network [OSTI]

    Najm, Farid N.

    Multigrid-like Technique for Power Grid Analysis Joseph N. Kozhaya University of Illinois, Urbana-micron VLSI designs include huge power grids that are required to distribute large amounts of current, at in a novel multigrid-like technique for the analysis of power grids. The grid is reduced to a coarser

  2. Solar energy grid integration systems - Energy storage (SEGIS-ES)

    SciTech Connect (OSTI)

    Ton, Dan; Peek, Georgianne H.; Hanley, Charles; Boyes, John

    2008-05-01

    In late 2007, the U.S. Department of Energy (DOE) initiated a series of studies to address issues related to potential high penetration of distributed photovoltaic (PV) generation systems on our nation’s electric grid. This Renewable Systems Interconnection (RSI) initiative resulted in the publication of 14 reports and an Executive Summary that defined needs in areas related to utility planning tools and business models, new grid architectures and PV systems configurations, and models to assess market penetration and the effects of high-penetration PV systems. As a result of this effort, the Solar Energy Grid Integration Systems (SEGIS) program was initiated in early 2008. SEGIS is an industry-led effort to develop new PV inverters, controllers, and energy management systems that will greatly enhance the utility of distributed PV systems.

  3. Articles about Grid Integration and Transmission

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram:Y-12Power, Inc | Department ofMarketing,1 Articles about

  4. NREL: Distributed Grid Integration Home Page

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on771/6/14 Contact:NewsWebmaster PleaseSpring 2014 /WebmasterPhoto of

  5. NREL: Transmission Grid Integration - Data and Resources

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

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

  6. NREL: Transmission Grid Integration - Eastern Renewable Generation

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

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

  7. NREL: Transmission Grid Integration - Energy Imbalance Markets

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

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

  8. NREL: Transmission Grid Integration - FESTIV Model

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

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

  9. NREL: Transmission Grid Integration - Generator Modeling

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

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

  10. NREL: Transmission Grid Integration - Research Staff

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial ToolkitSMARTS -BeingFutureResearch Staff NREL's

  11. NREL: Transmission Grid Integration - Wholesale Electricity Market

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

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

  12. NREL: Transmission Grid Integration - Working With Us

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

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

  13. NREL: Transmission Grid Integration Home Page

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

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

  14. NREL: Transportation Research - Electric Vehicle Grid 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial ToolkitSMARTSWorking With Us NREL

  15. Sandia Energy » Distribution Grid 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput AnalysisSinkholeCapabilitiesTheSandians ParticipateSmall

  16. Sandia Energy » Transmission Grid 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-ThroughputUpcoming Release of the University of2013 DomeniciTwo Sandians Honored in

  17. Sandia National Laboratories - Grid Integration Collaborations

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-ThroughputUpcoming Release of the University of2013 DomeniciTwo| National9,6/%2A-

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

    SciTech Connect (OSTI)

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

    2012-03-01

    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.

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Grid-Connected Marine Current Generation System Power Smoothing Control Using Supercapacitors fluctuations in the generator power. This paper deals with power smoothing control of grid connected MCT system a smoothed grid-injected power in case of swell disturbances. Index Terms-Marine current turbine, power

  20. False Data Injection Attacks against State Estimation in Electric Power Grids

    E-Print Network [OSTI]

    Qiu, Robert Caiming

    False Data Injection Attacks against State Estimation in Electric Power Grids Yao Liu, Peng Ning@cs.unc.edu Abstract--A power grid is a complex system connecting electric power generators to consumers through power to ensure the reliable operation of power grids, and state estimation is used in system monitoring to best

  1. Wind Power Integration via Aggregator-Consumer Coordination: A Game Theoretic Approach

    E-Print Network [OSTI]

    Huang, Jianwei

    Wind Power Integration via Aggregator-Consumer Coordination: A Game Theoretic Approach Chenye Wu@ie.cuhk.edu.hk Abstract--Due to the stochastic nature of wind power, its large-scale integration into the power grid-side resources via pricing in order to tackle the intermittency and fluctuations in wind power generation

  2. Centrality Fingerprints for Power Grid Network Growth Models

    E-Print Network [OSTI]

    Gurfinkel, Aleks Jacob; Rikvold, Per Arne

    2015-01-01

    In our previous work, we have shown that many of the properties of the Florida power grid are reproduced by deterministic network growth models based on the minimization of energy dissipation $E_\\mathrm{diss}$. As there is no $a~ priori$ best $E_\\mathrm{diss}$ minimizing growth model, we here present a tool, called the "centrality fingerprint," for probing the behavior of different growth models. The centrality fingerprints are comparisons of the current flow into/out of the network with the values of various centrality measures calculated at every step of the growth process. Finally, we discuss applications to the Maryland power grid.

  3. IEEE TRANSACTIONS ON SMART GRID, VOL. 5, NO. 1, JANUARY 2014 303 Opportunistic Routing for Smart Grid With Power

    E-Print Network [OSTI]

    Bahk, Saewoong

    IEEE TRANSACTIONS ON SMART GRID, VOL. 5, NO. 1, JANUARY 2014 303 Opportunistic Routing for Smart communications (PLCs) have recently absorbed interest in the smart grid since they offer communi- cation--Access network, narrowband PLC, opportunistic routing, power line communications, smart grid. I. INTRODUCTION

  4. Integrating Grid Services into the Cray XT4 Environment

    E-Print Network [OSTI]

    Cholia, Shreyas

    2010-01-01

    to point to appropriate locations eg. /etc/grid-security?/globus/grid-security-nid1234, /etc/grid-security/certificates?/globus/certificates • The

  5. Reinforcing Power Grid Transmission with FACTS Devices

    E-Print Network [OSTI]

    Frolov, Vladimir; Chertkov, Misha

    2013-01-01

    We explore optimization methods for planning the placement, sizing and operations of Flexible Alternating Current Transmission System (FACTS) devices installed into the grid to relieve congestion created by load growth or fluctuations of intermittent renewable generation. We limit our selection of FACTS devices to those that can be represented by modification of the inductance of the transmission lines. Our master optimization problem minimizes the $l_1$ norm of the FACTS-associated inductance correction subject to constraints enforcing that no line of the system exceeds its thermal limit. We develop off-line heuristics that reduce this non-convex optimization to a succession of Linear Programs (LP) where at each step the constraints are linearized analytically around the current operating point. The algorithm is accelerated further with a version of the cutting plane method greatly reducing the number of active constraints during the optimization, while checking feasibility of the non-active constraints post...

  6. A Sensemaking Perspective on Situation Awareness in Power Grid Operations

    SciTech Connect (OSTI)

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

    2008-07-21

    With increasing complexity and interconnectivity of the electric power grid, the scope and complexity of grid operations continues to grow. New paradigms are needed to guide research to improve operations by enhancing situation awareness of operators. Research on human factors/situation awareness is described within a taxonomy of tools and approaches that address different levels of cognitive processing. While user interface features and visualization approaches represent the predominant focus of human factors studies of situation awareness, this paper argues that a complementary level, sensemaking, deserves further consideration by designers of decision support systems for power grid operations. A sensemaking perspective on situation aware-ness may reveal new insights that complement ongoing human factors research, where the focus of the investigation of errors is to understand why the decision makers experienced the situation the way they did, or why what they saw made sense to them at the time.

  7. An impedance profile of a commercial power grid and a tester power distribution system is developed in this paper.

    E-Print Network [OSTI]

    Plusquellic, James

    Abstract An impedance profile of a commercial power grid and a tester power distribution system transient signals generated by a chip. Several resistance-capacitance (RC) models of the power grid testing environment is then developed. The impedance profile of the combined probe card and the power grid

  8. 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]

    Misra, Satyajayant

    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

  9. Ultrafast Power Processor for Smart Grid Power Module Development

    SciTech Connect (OSTI)

    MAITRA, ARINDAM; LITWIN, RAY; lai, Jason; Syracuse, David

    2012-12-30

    This project’s goal was to increase the switching speed and decrease the losses of the power semiconductor devices and power switch modules necessary to enable Smart Grid energy flow and control equipment such as the Ultra-Fast Power Processor. The primary focus of this project involves exploiting the new silicon-based Super-GTO (SGTO) technology and build on prototype modules already being developed. The prototype super gate-turn-off thyristor (SGTO) has been tested fully under continuously conducting and double-pulse hard-switching conditions for conduction and switching characteristics evaluation. The conduction voltage drop measurement results indicate that SGTO has excellent conduction characteristics despite inconsistency among some prototype devices. Tests were conducted with two conditions: (1) fixed gate voltage and varying anode current condition, and (2) fixed anode current and varying gate voltage condition. The conduction voltage drop is relatively a constant under different gate voltage condition. In terms of voltage drop as a function of the load current, there is a fixed voltage drop about 0.5V under zero current condition, and then the voltage drop is linearly increased with the current. For a 5-kV voltage blocking device that may operate under 2.5-kV condition, the projected voltage drop is less than 2.5 V under 50-A condition, or 0.1%. If the device is adopted in a converter operating under soft-switching condition, then the converter can achieve an ultrahigh efficiency, typically above 99%. The two-pulse switching test results indicate that SGTO switching speed is very fast. The switching loss is relatively low as compared to that of the insulated-gate-bipolar-transistors (IGBTs). A special phenomenon needs to be noted is such a fast switching speed for the high-voltage switching tends to create an unexpected C?dv/dt current, which reduces the turn-on loss because the dv/dt is negative and increases the turn-off loss because the dv/dt is positive. As a result, the turn-on loss at low current is quite low, and the turn-off loss at low current is relatively high. The phenomenon was verified with junction capacitance measurement along with the dv/dt calculation. Under 2-kV test condition, the turn-on and turn-off losses at 25-A is about 3 and 9 mJ, respectively. As compared to a 4.5-kV, 60-A rated IGBT, which has turn-on and turn-off losses about 25 and 20 mJ under similar test condition, the SGTO shows significant switching loss reduction. The switching loss depends on the switching frequency, but under hard-switching condition, the SGTO is favored to the IGBT device. The only concern is during low current turn-on condition, there is a voltage bump that can translate to significant power loss and associated heat. The reason for such a current bump is not known from this study. It is necessary that the device manufacturer perform though test and provide the answer so the user can properly apply SGTO in pulse-width-modulated (PWM) converter and inverter applications.

  10. The equal load-sharing model of cascade failures in power grids

    E-Print Network [OSTI]

    Scala, Antonio

    2015-01-01

    Electric power-systems are one of the most important critical infrastructures. In recent years, they have been exposed to extreme stress due to the increasing demand, the introduction of distributed renewable energy sources, and the development of extensive interconnections. We investigate the phenomenon of abrupt breakdown of an electric power-system under two scenarios: load growth (mimicking the ever-increasing customer demand) and power fluctuations (mimicking the effects of renewable sources). Our results indicate that increasing the system size causes breakdowns to become more abrupt; in fact, mapping the system to a solvable statistical-physics model indicates the occurrence of a first order transition in the large size limit. Such an enhancement for the systemic risk failures (black-outs) with increasing network size is an effect that should be considered in the current projects aiming to integrate national power-grids into "super-grids".

  11. On the Role of Power-Grid and Communication-System Interdependencies on Cascading Failures

    E-Print Network [OSTI]

    Hayat, Majeed M.

    On the Role of Power-Grid and Communication- System Interdependencies on Cascading Failures Mahshid Abstract--The mutual functional dependencies between a power grid and its supporting communication system consider the dependency of the communication system on the power grid for its power supply. By embedding

  12. The Impact of the Topology on Cascading Failures in a Power Grid Model

    E-Print Network [OSTI]

    Van Mieghem, Piet

    The Impact of the Topology on Cascading Failures in a Power Grid Model Yakup Koça,1 Martijn scale blackouts in power trans- mission grids. Secure electrical power supply requires, together with careful operation, a robust design of the electrical power grid topology. Currently, the impact

  13. Application of Centrality Measures of Complex Network Framework in Power Grid

    E-Print Network [OSTI]

    Pota, Himanshu Roy

    Application of Centrality Measures of Complex Network Framework in Power Grid A. B. M. Nasiruzzaman of the power grid. In this paper three distinct measures of centrality are presented and they are described Typically a system like power grid consists of power plants, transformers, transmission lines, distribution

  14. Cyber Security for Power Grids Frank Mueller, Subhashish Bhattacharya, Christopher Zimmer

    E-Print Network [OSTI]

    Mueller, Frank

    Cyber Security for Power Grids Frank Mueller, Subhashish Bhattacharya, Christopher Zimmer Dept security challenges for a fu- ture power grid. It highlights deficiencies and shortcom- ings of existing and fault resilience of power as a utility must be a prime objective for power grids. Security compromises

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

    E-Print Network [OSTI]

    Krings, Axel W.

    {patrickm, krings, oman} @cs.uidaho.edu Abstract The modern electric power grid is a complex interconnected American electric power grid and propose appropriate means to mediate them. The analytic technique Systems Analysis 1. Introduction An electric power grid is a complex interconnected network of power

  16. Integration of Computing and Information on Grids Geoffrey Fox

    E-Print Network [OSTI]

    by Fran Berman, Tony Hey and myself. (http://www.grid2002.org/ ) · Grids support e-Science representing

  17. FUTURE POWER GRID INITIATIVE A Statistical State Prediction

    E-Print Network [OSTI]

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

  18. Optimal Energy Storage Control Policies for the Smart Power Grid

    E-Print Network [OSTI]

    Koutsopoulos, Iordanis

    Optimal Energy Storage Control Policies for the Smart Power Grid Iordanis Koutsopoulos Vassiliki Center for Research and Technology Hellas (CERTH), Greece Abstract--Electric energy storage devices the optimal energy storage control problem from the side of the utility operator. The operator controller

  19. Statistical analysis of cascading failures in power grids

    SciTech Connect (OSTI)

    Chertkov, Michael; Pfitzner, Rene; Turitsyn, Konstantin

    2010-12-01

    We introduce a new microscopic model of cascading failures in transmission power grids. This model accounts for automatic response of the grid to load fluctuations that take place on the scale of minutes, when optimum power flow adjustments and load shedding controls are unavailable. We describe extreme events, caused by load fluctuations, which cause cascading failures of loads, generators and lines. Our model is quasi-static in the causal, discrete time and sequential resolution of individual failures. The model, in its simplest realization based on the Directed Current description of the power flow problem, is tested on three standard IEEE systems consisting of 30, 39 and 118 buses. Our statistical analysis suggests a straightforward classification of cascading and islanding phases in terms of the ratios between average number of removed loads, generators and links. The analysis also demonstrates sensitivity to variations in line capacities. Future research challenges in modeling and control of cascading outages over real-world power networks are discussed.

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

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

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

  1. The Evolution of the Internet Community and the "Yet-to-Evolve" Smart Grid Community: Parallels and Lessons-to-be-Learned

    E-Print Network [OSTI]

    McParland, Charles

    2010-01-01

    little involvement in power grid operations – the consumer.an integrated, efficient and secure electrical power grid.remaking of the present power grid into the Smart Grid is

  2. Power Grid Optimization | GE Global Research

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeedingProgram Guidelines This document w w w.pv - te ch.org Power

  3. FireGrid: Integrated emergency response and fire safety engineering for the future built environment 

    E-Print Network [OSTI]

    Berry, Dave; Usmani, Asif; Torero, Jose L; Tate, Austin; McLaughlin, Stephen; Potter, Stephen; Trew, Arthur; Baxter, Rob; Bull, Mark; Atkinson, Malcolm

    FireGrid is researching the development and integration of modelling, sensors, Grid, HPC, and C/C technologies. It will stimulate further research, in new safety systems and strategies, in new sensor technologies, in ...

  4. Value of Faster Computation for Power Grid Operation

    SciTech Connect (OSTI)

    Chen, Yousu; Huang, Zhenyu; Elizondo, Marcelo A.

    2012-09-30

    As a result of the grid evolution meeting the information revolution, the power grid is becoming far more complex than it used to be. How to feed data in, perform analysis, and extract information in a real-time manner is a fundamental challenge in today’s power grid operation, not to mention the significantly increased complexity in the smart grid environment. Therefore, high performance computing (HPC) becomes one of the advanced technologies used to meet the requirement of real-time operation. This paper presents benefit case studies to show the value of fast computation for operation. Two fundamental operation functions, state estimation (SE) and contingency analysis (CA), are used as examples. In contrast with today’s tools, fast SE can estimate system status in a few seconds—comparable to measurement cycles. Fast CA can solve more contingencies in a shorter period, reducing the possibility of missing critical contingencies. The benefit case study results clearly show the value of faster computation for increasing the reliability and efficiency of power system operation.

  5. International Journal of Smart Grid and Clean Energy Smart Grid Security: Threats, Vulnerabilities and Solutions

    E-Print Network [OSTI]

    Aloul, Fadi

    International Journal of Smart Grid and Clean Energy Smart Grid Security: Threats, Vulnerabilities is currently evolving into the smart grid. Smart grid integrates the traditional electrical power grid, controlling and managing the demands of customers. A smart grid is a huge complex network composed of millions

  6. Update to Large Power Transformers and the U.S. Electric Grid...

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

    Update to Large Power Transformers and the U.S. Electric Grid Report Now Available Update to Large Power Transformers and the U.S. Electric Grid Report Now Available April 25, 2014...

  7. Large Power Transformers and the U.S. Electric Grid Report Update...

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

    Large Power Transformers and the U.S. Electric Grid Report Update (April 2014) Large Power Transformers and the U.S. Electric Grid Report Update (April 2014) The Office of...

  8. An engineering-economic analysis of combined heat and power technologies in a (mu)grid application

    E-Print Network [OSTI]

    Bailey, Owen; Ouaglal, Boubekeur; Bartholomew, Emily; Marnay, Chris; Bourassa, Norman

    2002-01-01

    the high-voltage meshed power grid with which current powerand providing the µGrid’s power and heat with DER plus CHPProviding the µGrid’s power and heat with CHP reduces the µ

  9. Lassoing Line Outages in the Smart Power Grid

    E-Print Network [OSTI]

    Zhu, Hao

    2011-01-01

    Fast and accurate unveiling of power line outages is of paramount importance not only for preventing faults that may lead to blackouts, but also for routine monitoring and control tasks of the smart grid, including state estimation and optimal power flow. Existing approaches are either challenged by the \\emph{combinatorial complexity} issues involved, and are thus limited to identifying single- and double-line outages; or, they invoke less pragmatic assumptions such as \\emph{conditionally independent} phasor angle measurements available across the grid. Using only a subset of voltage phasor angle data, the present paper develops a near real-time algorithm for identifying multiple line outages at the affordable complexity of solving a quadratic program via block coordinate descent iterations. The novel approach relies on reformulating the DC linear power flow model as a \\emph{sparse} overcomplete expansion, and leveraging contemporary advances in compressive sampling and variable selection using the least-abso...

  10. Phase Model with Feedback Control for Power Grids

    E-Print Network [OSTI]

    Matsuo, Tatsuma

    2013-01-01

    A phase model with feedback control is studied as a dynamical model of power grids. As an example, we study a model network corresponding to the power grid in the Kyushu region. The standard frequency is maintained by the mutual synchronization and the feedback control. Electric failures are induced by an overload. We propose a local feedback method in which the strength of feedback control is proportional to the magnitude of generators. We find that the electric failures do not occur until the utilization ratio is close to 1 under this feedback control. We also find that the temporal response for the time-varying input power is suppressed under this feedback control. We explain the mechanisms using the corresponding global feedback method.

  11. Abstract: During power deregulation, power companies are releasing their transmission grids to form ISOs/RTOs while

    E-Print Network [OSTI]

    1 Abstract: During power deregulation, power companies are releasing their transmission grids for these ISOs/RTOs is to further cooperate and to run the power market on even a bigger grid as a Mega for these ISOs/RTOs is to further combine and enlarge to become a bigger Mega-RTO grid for a better market

  12. AutoGrid - Turning Big Data Into Power with the Energy Data Platform and Apps

    SciTech Connect (OSTI)

    Narayan, Amit; Dresselhuys, Eric; Kulp, Yann; Buseman, Greg; Piette, Mary Ann; Tang, Andrew; Dailey, Karla; Knudsen, Chris

    2014-03-25

    AutoGrid personnel discuss how they are turning big data into power with the energy data platform and apps.

  13. July 29th -30th 2010 1Integration of Wind Power in the Danish Energy System Integration of Wind Power in the Danish Energy System

    E-Print Network [OSTI]

    1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 MW Offshore Onshore Wind · Wind farms: · Grid codes ensure capability to regulate #12;July 29th - 30th 2010 9Integration of WindJuly 29th - 30th 2010 1Integration of Wind Power in the Danish Energy System Integration of Wind

  14. The Emerging Interdependence of the Electric Power Grid & Information and Communication Technology

    SciTech Connect (OSTI)

    Taft, Jeffrey D.; Becker-Dippmann, Angela S.

    2015-08-01

    This paper examines the implications of emerging interdependencies between the electric power grid and Information and Communication Technology (ICT). Over the past two decades, electricity and ICT infrastructure have become increasingly interdependent, driven by a combination of factors including advances in sensor, network and software technologies and progress in their deployment, the need to provide increasing levels of wide-area situational awareness regarding grid conditions, and the promise of enhanced operational efficiencies. Grid operators’ ability to utilize new and closer-to-real-time data generated by sensors throughout the system is providing early returns, particularly with respect to management of the transmission system for purposes of reliability, coordination, congestion management, and integration of variable electricity resources such as wind generation.

  15. Citizens Collaboration to Minimize Power Costs in Smart Grids: A Game Theoretic Approach

    E-Print Network [OSTI]

    Bellalta, Boris

    Citizens Collaboration to Minimize Power Costs in Smart Grids: A Game Theoretic Approach Tarek Al.bellalta@upf.edu Keywords: Smart Cities, Smart Grids, Renewable Energy, Game Theory. Abstract: Generating the power end-users in smart grids. We consider that citizens can produce some amount of electric power obtained

  16. Aalborg Universitet Generation-Side Power Scheduling in a Grid-Connected DC Microgrid

    E-Print Network [OSTI]

    Vasquez, Juan Carlos

    Aalborg Universitet Generation-Side Power Scheduling in a Grid-Connected DC Microgrid Hernández). Generation-Side Power Scheduling in a Grid-Connected DC Microgrid. In IEEE ICDCM 2015. IEEE. General rights.aau.dk on: juli 04, 2015 #12;Generation-Side Power Scheduling in a Grid-Connected DC Microgrid Adriana C

  17. SPACE WEATHER AND THE INCIDENCE OF REACTIVE "OFF-COST" OPERATIONS IN THE PJM POWER GRID

    E-Print Network [OSTI]

    Schrijver, Karel

    space weather impacts the electricity market in the PJM power grid. The starting point of this paperSPACE WEATHER AND THE INCIDENCE OF REACTIVE "OFF-COST" OPERATIONS IN THE PJM POWER GRID 7.6 Kevin F the price of electricity in the PJM power grid. In this paper we examine one of the mechanisms by which

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

    E-Print Network [OSTI]

    Tronci, Enrico

    Risk analysis via heterogeneous models of SCADA interconnecting Power Grids and Telco Networks A and Data Acquisition (SCADA) systems has led to an improvement of Power Grid operations and functionalities power grid services are increasingly depending upon the adequate functionality of SCADA system which

  19. Byzantine Fault Tolerance for Electric Power Grid Monitoring and Control Wenbing Zhao and F. Eugenio Villaseca

    E-Print Network [OSTI]

    Zhao, Wenbing

    Byzantine Fault Tolerance for Electric Power Grid Monitoring and Control Wenbing Zhao and F of the electric power grid is crucial to ev- ery nation's security and well-being. As revealed by a num- ber of large-scale blackout incidents in North America, the data communication infrastructure for power grid

  20. Electrical Characteristics of Multi-Layer Power Distribution Grids Andrey V. Mezhiba and Eby G. Friedman

    E-Print Network [OSTI]

    Friedman, Eby G.

    Electrical Characteristics of Multi-Layer Power Distribution Grids Andrey V. Mezhiba and Eby G a multi- layer power distribution grid typically has significantly different elec- trical properties distribution grids built exclusively in the up- per, low resistance metal layers, a multi-layer power

  1. On Modeling Random Topology Power Grids for Testing Decentralized Network Control Strategies

    E-Print Network [OSTI]

    Scaglione, Anna

    On Modeling Random Topology Power Grids for Testing Decentralized Network Control Strategies.edu) Abstract: An electrical power grid is a critical infrastructure. Its reliable, robust, and efficient statistically its information source, namely the power grid itself. In this paper we studied both

  2. Power Grid Analysis Using a Flexible Conjugate Gradient Algorithm with Sparsification

    E-Print Network [OSTI]

    Freund, Roland W.

    Power Grid Analysis Using a Flexible Conjugate Gradient Algorithm with Sparsification Peter power grid analysis. The algorithm allows changing preconditioners and sparsification of the search and sparsification. The algorithm is applied to a number of realistic power grid examples. I. INTRODUCTION The design

  3. CARNEGIE MELLON UNIVERSITY Electric Power Micro-grids: Opportunities and Challenges

    E-Print Network [OSTI]

    CARNEGIE MELLON UNIVERSITY Electric Power Micro-grids: Opportunities and Challenges for an Emerging;Electric Power Micro-grids: Barriers and opportunities for an emerging distributed energy architecture ii, such as engines and micro-turbines. #12;Electric Power Micro-grids: Barriers and opportunities for an emerging

  4. A Scaled Random Walk Solver for Fast Power Grid Analysis Baktash Boghrati, Sachin Sapatnekar

    E-Print Network [OSTI]

    Sapatnekar, Sachin

    A Scaled Random Walk Solver for Fast Power Grid Analysis Baktash Boghrati, Sachin Sapatnekar-chip power grids requires the solution of large systems of linear algebraic equations with specific prop. These methods build a probabilistic network that corresponds to the power grid. However, this construction does

  5. Analysis and Reduction of Power Grid Models under Uncertainty Sandia National Laboratories

    E-Print Network [OSTI]

    Levi, Anthony F. J.

    1.30pm Analysis and Reduction of Power Grid Models under Uncertainty Habib Najm Sandia National Laboratories Abstract The increased utilization of alternative energy sources requires that evolving power grid Uncertainty Eigenproblem Closure Analysis and Reduction of Power Grid Models under Uncertainty H.N. Najm

  6. A Worst-Case Circuit Delay Verification Technique Considering Power Grid Voltage Variations

    E-Print Network [OSTI]

    Najm, Farid N.

    A Worst-Case Circuit Delay Verification Technique Considering Power Grid Voltage Variations then these critical paths we tie the supplies of the gates to physical power grids and re-analyze for the worst- case and report on the implementation results using benchmark circuits tied to a number of test-case power grids

  7. OPTIMIZATION STRATEGIES FOR THE VULNERABILITY ANALYSIS OF THE ELECTRIC POWER GRID

    E-Print Network [OSTI]

    Pinar, Ali

    OPTIMIZATION STRATEGIES FOR THE VULNERABILITY ANALYSIS OF THE ELECTRIC POWER GRID ALI PINAR, JUAN would cause a severe blackout, is critical for the secure operation of the electric power grid. We show how power grid vulnerability analysis can be studied as a bilevel mixed integer nonlinear programming

  8. Scaling Analysis of On-Chip Power Grid Voltage Variations in Nanometer Scale ULSI

    E-Print Network [OSTI]

    Pedram, Massoud

    Scaling Analysis of On-Chip Power Grid Voltage Variations in Nanometer Scale ULSI AMIR H. AJAMI, 1 be insufficient to limit the voltage fluctuations over the power grid for future technologies. It is also shown voltage drop in the power grid may result in a functional failure in dynamic logic and a timing violation

  9. Power Grid Optimization in 3D Circuits Using MIM and CMOS Decoupling Capacitors

    E-Print Network [OSTI]

    Sapatnekar, Sachin

    Power Grid Optimization in 3D Circuits Using MIM and CMOS Decoupling Capacitors Pingqiang Zhou severe in 3D. CMOS decoupling capacitors (decaps) have been used effectively for controlling power grid between MIM and CMOS decaps. Experimental results show that power grid noise can be more effectively

  10. Handling Inductance in Early Power Grid Verification Nahi H. Abdul Ghani

    E-Print Network [OSTI]

    Najm, Farid N.

    Handling Inductance in Early Power Grid Verification Nahi H. Abdul Ghani Department of ECE design verification, one should check if the voltage drop on the power grid exceeds some critical thresh, the currents drawn by the logic beneath the power grid are described by means of current constraints

  11. A geometric approach for early power grid verification using current constraints

    E-Print Network [OSTI]

    Najm, Farid N.

    A geometric approach for early power grid verification using current constraints Imad A. Ferzli Automation Eindhoven, The Netherlands lars@magma-da.com ABSTRACT The verification of power grids in modern programs as there are power grid nodes, to an- other involving a user-limited number of solutions of one

  12. A Fast Algorithm for Power Grid Design Jaskirat Singh Sachin S. Sapatnekar

    E-Print Network [OSTI]

    Sapatnekar, Sachin

    A Fast Algorithm for Power Grid Design Jaskirat Singh Sachin S. Sapatnekar Department of Electrical is recursively bipartitioned, and the wire pitches and the wire widths of the power grid in the partitions of the power grid constructed in the previous levels of partitioning, the scheme ensures that a small global

  13. An Improved AMG-based Method for Fast Power Grid Analysis Cheng Zhuo, Jiang Hu1

    E-Print Network [OSTI]

    Hu, Jiang

    An Improved AMG-based Method for Fast Power Grid Analysis Cheng Zhuo, Jiang Hu1 and Kangsheng Chen and verification. Meanwhile, the huge size of power grid requires its analysis to be fast and highly scalable. Algebraic multigrid (AMG) has been recognized as a promising approach for fast power grid analysis. We

  14. A Partition-based Algorithm for Power Grid Design using Locality

    E-Print Network [OSTI]

    Sapatnekar, Sachin

    1 A Partition-based Algorithm for Power Grid Design using Locality Jaskirat Singh Sachin S widths of the power grid in the partitions are repeatedly adjusted to meet the voltage drop and current density specifications. By using the macromodels of the power grid constructed in the previous levels

  15. An Efficient Dual Algorithm for Vectorless Power Grid Verification under Linear Current Constraints

    E-Print Network [OSTI]

    Wang, Jia

    An Efficient Dual Algorithm for Vectorless Power Grid Verification under Linear Current Constraints, Chicago, IL 60616, USA ABSTRACT Vectorless power grid verification makes it possible to eval- uate worst, the vectorless power grid verification problem can be formulated and solved as a linear programming (LP) problem

  16. COLLABORATIVE DEVELOPMENT OF AUTOMATED ADVANCED INTEROPERABILITY CERTIFICATION TEST PROTOCOLS FOR PV SMART GRID INTEGRATION

    E-Print Network [OSTI]

    renewable energy sources are connected to the electric power system, the ability of grid operators inverters and energy storage systems (ESS), have the ability to assist grid operators control feederCOLLABORATIVE DEVELOPMENT OF AUTOMATED ADVANCED INTEROPERABILITY CERTIFICATION TEST PROTOCOLS

  17. A Novel Visualization Technique for Electric Power Grid Analytics

    SciTech Connect (OSTI)

    Wong, Pak C.; Schneider, Kevin P.; Mackey, Patrick S.; Foote, Harlan P.; Chin, George; Guttromson, Ross T.; Thomas, James J.

    2009-05-01

    The application of information visualization holds tremendous promise for the electric power industry, and yet its potential has not been sufficiently exploited by the visualization community. Prior work on visualizing electric power systems has been limited to depicting raw or processed information on top of a geographic layout. Little effort has been devoted to maximize the analytical strengths naturally gained by the visualization itself. This paper introduces a visualization system prototype, known as GreenGrid, that explores the planning and monitoring of the North American Electricity Infrastructure. For the purposes of visualization, the power infrastructure can be described as a network of nodes and links. The nodes represent the electrical buses where generators and loads are connected, while the links represent the transmission lines that interconnect the buses. This paper focuses mainly on a customized technique within GreenGrid that is designed to visually identify abnormal characteristics of the electricity infrastructure. In particular, we examine an extreme event that occurred within the Western United States power grid on August 10, 1996. We compare our study results with the conclusion of the post-disturbance analysis and find that many of the disturbance characteristics can be readily identified with the proper form of visualization. The paper includes a lessons learned discussion to evaluate the visualization application.

  18. Gas-powered integration

    SciTech Connect (OSTI)

    Hawrylyshyn, G.

    1993-05-01

    Popularly known as the Brazil/Bolivia Gas Deal, the project consists of a 20-year agreement to supply Bolivian natural gas to heavily industrialized southern Brazil. This is an inter-regional undertaking comparable in scope and significance to pipeline projects in Europe and the gas networks between the USA and Canada and Mexico. The Brazil/Boliviz agreement call foe a 10-month period to obtain financing and 30 months to build the 1,376 mile main pipeline, a job that will be undertaken individually by each country within its territory. The pipelines will meet at the border in Corumba. Aside from the main gasline, the 20-year agreement will also require the laying of 1,184 kilometers (736 miles) of additional feeder and distribution pipelines in Brazil, raising the total pipe mileage to 3,389 kilometers. Then there is the need to build the whole infrastructure for gas distribution facilities and to switch to gas to power the equipment in thousands of industrial plants, commercial establishments and residences. The total investment in this undertaking is estimated to surpass US$10 billion.

  19. NREL: Transmission Grid Integration - Hawaii Solar Integration Study

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

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

  20. NREL: Transmission Grid Integration - Oahu Wind Integration and

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

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

  1. NREL: Transmission Grid Integration - Solar Integration National Dataset

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial ToolkitSMARTS -BeingFutureResearch Staff NREL'sToolkit

  2. NREL: Transmission Grid Integration - Western Wind and Solar 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial ToolkitSMARTS -BeingFutureResearchWebmaster Please

  3. NREL: Transmission Grid Integration - Western Wind and Solar 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial ToolkitSMARTS -BeingFutureResearchWebmaster PleaseStudy

  4. NREL: Transmission Grid Integration - Western Wind and Solar 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial ToolkitSMARTS -BeingFutureResearchWebmaster

  5. Control and Optimization Meet the Smart Power Grid - Scheduling of Power Demands for Optimal Energy Management

    E-Print Network [OSTI]

    Koutsopoulos, Iordanis

    2010-01-01

    The smart power grid aims at harnessing information and communication technologies to enhance reliability and enforce sensible use of energy. Its realization is geared by the fundamental goal of effective management of demand load. In this work, we envision a scenario with real-time communication between the operator and consumers. The grid operator controller receives requests for power demands from consumers, with different power requirement, duration, and a deadline by which it is to be completed. The objective is to devise a power demand task scheduling policy that minimizes the grid operational cost over a time horizon. The operational cost is a convex function of instantaneous power consumption and reflects the fact that each additional unit of power needed to serve demands is more expensive as demand load increases.First, we study the off-line demand scheduling problem, where parameters are fixed and known. Next, we devise a stochastic model for the case when demands are generated continually and sched...

  6. Grid-scale Fluctuations and Forecast Error in Wind Power

    E-Print Network [OSTI]

    G. Bel; C. P. Connaughton; M. Toots; M. M. Bandi

    2015-03-29

    The fluctuations in wind power entering an electrical grid (Irish grid) were analyzed and found to exhibit correlated fluctuations with a self-similar structure, a signature of large-scale correlations in atmospheric turbulence. The statistical structure of temporal correlations for fluctuations in generated and forecast time series was used to quantify two types of forecast error: a timescale error ($e_{\\tau}$) that quantifies the deviations between the high frequency components of the forecast and the generated time series, and a scaling error ($e_{\\zeta}$) that quantifies the degree to which the models fail to predict temporal correlations in the fluctuations of the generated power. With no $a$ $priori$ knowledge of the forecast models, we suggest a simple memory kernel that reduces both the timescale error ($e_{\\tau}$) and the scaling error ($e_{\\zeta}$).

  7. Grid-scale Fluctuations and Forecast Error in Wind Power

    E-Print Network [OSTI]

    Bel, G; Toots, M; Bandi, M M

    2015-01-01

    The fluctuations in wind power entering an electrical grid (Irish grid) were analyzed and found to exhibit correlated fluctuations with a self-similar structure, a signature of large-scale correlations in atmospheric turbulence. The statistical structure of temporal correlations for fluctuations in generated and forecast time series was used to quantify two types of forecast error: a timescale error ($e_{\\tau}$) that quantifies the deviations between the high frequency components of the forecast and the generated time series, and a scaling error ($e_{\\zeta}$) that quantifies the degree to which the models fail to predict temporal correlations in the fluctuations of the generated power. With no $a$ $priori$ knowledge of the forecast models, we suggest a simple memory kernel that reduces both the timescale error ($e_{\\tau}$) and the scaling error ($e_{\\zeta}$).

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

    SciTech Connect (OSTI)

    Ropp, Michael; Gonzalez, Sigifredo; Schaffer, Alan; Katz, Stanley; Perkinson, Jim; Bower, Ward Isaac; Prestero, Mark; Casey, Leo; Moaveni, Houtan; Click, David; Davis, Kristopher; Reedy, Robert; Kuszmaul, Scott S.; Sena-Henderson, Lisa; David, Carolyn; Akhil, Abbas Ali

    2012-03-01

    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.

  9. Demand Side Management in the Smart Grid: Information Processing for the Power Switch

    SciTech Connect (OSTI)

    Alizadeh, Mahnoosh; LI, Xiao; Wang, Zhifang; Scagilone, Anna; Melton, Ronald B.

    2012-09-01

    In this article we discuss the most recent developments in the area of load management, and consider possible interaction schemes of novel architectures with distributed energy resources (DER). In order to handle the challenges faced by tomorrow’s smart grid, which are caused by volatile load and generation profiles (from the large number of plug-in EVs and from renewable integration), the conventional grid operating principle of load-following needs to be changed into load-shaping or generation-following. Demand Side Management will be a most promising and powerful solution to the above challenges. However, many other issues such as load forecasting, pricing structure, market policy, renewable integration interface, and even the AC/DC implementation at the distribution side, need to be taken into the design in order to search for the most effective and applicable solution.

  10. Integrated Learning Environment for Smart Grid Security Kewen Wang, Yi Pan, Wen-Zhan Song

    E-Print Network [OSTI]

    Wang, Weichao

    Integrated Learning Environment for Smart Grid Security Kewen Wang, Yi Pan, Wen-Zhan Song-- Cyber Security of smart grids becomes more and more important to our everyday life for its wide of this important area. We believe that simulation systems designed for research purposes in the smart grid security

  11. Decision-Support Software for Grid Operators: Transmission Topology Control for Infrastructure Resilience to the Integration of Renewable Generation

    SciTech Connect (OSTI)

    2012-03-16

    GENI Project: The CRA team is developing control technology to help grid operators more actively manage power flows and integrate renewables by optimally turning on and off entire power lines in coordination with traditional control of generation and load resources. The control technology being developed would provide grid operators with tools to help manage transmission congestion by identifying the facilities whose on/off status must change to lower generation costs, increase utilization of renewable resources and improve system reliability. The technology is based on fast optimization algorithms for the near to real-time change in the on/off status of transmission facilities and their software implementation.

  12. INTEGRATED CONTROL OF NEXT GENERATION POWER SYSTEM

    SciTech Connect (OSTI)

    2010-02-28

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

  13. IEEE TRANSACTIONS ON POWER SYSTEMS 1 Large-Scale Integration of Deferrable

    E-Print Network [OSTI]

    Oren, Shmuel S.

    . Index Terms--Load management, power generation scheduling, wind power generation. I. INTRODUCTION on power system operations it is necessary to represent the balancing oper- ations of the remaining gridIEEE TRANSACTIONS ON POWER SYSTEMS 1 Large-Scale Integration of Deferrable Demand and Renewable

  14. Power Grid Network Evolutions for Local Energy Trading

    E-Print Network [OSTI]

    Pagani, Giuliano Andrea

    2012-01-01

    The shift towards a energy Grid dominated by prosumers (consumers and producers of energy) will inevitably have repercussions on the distribution infrastructure. Today it is a hierarchical one designed to deliver energy from large scale facilities to end-users. Tomorrow it will be a capillary infrastructure at the medium and Low Voltage levels that will support local energy trading among prosumers. In our previous work, we analyzed the Dutch Power Grid and made an initial analysis of the economic impact topological properties have on decentralized energy trading. In this paper, we go one step further and investigate how different networks topologies and growth models facilitate the emergence of a decentralized market. In particular, we show how the connectivity plays an important role in improving the properties of reliability and path-cost reduction. From the economic point of view, we estimate how the topological evolutions facilitate local electricity distribution, taking into account the main cost ingredi...

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

    SciTech Connect (OSTI)

    Hanley, Charles J.; Ton, Dan T.; Boyes, John D.; Peek, Georgianne Huff

    2008-07-01

    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.

  16. 1. Multi-Agent Systems, Intelligent Robotics, Mechatronics, and General Control Areas. 2. Power Electronics, Renewable Energy, and Smart Grid.

    E-Print Network [OSTI]

    Wu, Yih-Min

    , and General Control Areas. 2. Power Electronics, Renewable Energy, and Smart Grid. 3. Computer Science

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

    E-Print Network [OSTI]

    Wu, Yih-Min

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

  18. Anforderungen an den Energie-und Leistungsumsatz der POWER TO GAS-Einheit im MICRO GRID eines industriellen Produktionsstandortes

    E-Print Network [OSTI]

    Paderborn, Universität

    MICRO GRID angeschlossenen elektrischen Energiespeicher und eine ,,POWER TO GAS" -Anlage kompensiert

  19. PV AND GRID RELIABILITY: AVAILABILITY OF PV POWER DURING CAPACITY SHORTFALLS

    E-Print Network [OSTI]

    Perez, Richard R.

    PV AND GRID RELIABILITY: AVAILABILITY OF PV POWER DURING CAPACITY SHORTFALLS Richard Perez events caused by high, localized demand and inability for the grid operators to deliver local power at photovoltaic (PV) power availability during major summer 1999-2000 power outages in the United States. We

  20. Analysis of major failures in Europe's power grid

    E-Print Network [OSTI]

    Rosas-Casals, Martí

    2009-01-01

    Power grids are prone to failure. Time series of reliability measures such as total power loss or energy not supplied can give significant account of the underlying dynamical behavior of these systems, specially when the resulting probability distributions present remarkable features such as an algebraic tail, for example. In this paper, seven years (from 2002 to 2008) of Europe's transport of electricity network failure events have been analyzed and the best fit for this empirical data probability distribution is presented. With the actual span of available data and although there exists a moderate support for the power law model, the relatively small amount of events contained in the function's tail suggests that other causal factors might be significantly ruling the system's dynamics.

  1. Utility-Scale Power Router: Dynamic Control of Grid Assets Using Direct AC Converter Cells

    SciTech Connect (OSTI)

    2010-09-01

    ADEPT Project: Georgia Tech is developing a cost-effective, utility-scale power router that uses an enhanced transformer to more efficiently direct power on the grid. Existing power routing technologies are too expensive for widespread use, but the ability to route grid power to match real-time demand and power outages would significantly reduce energy costs for utilities, municipalities, and consumers. Georgia Tech is adding a power converter to an existing grid transformer to better control power flows at about 1/10th the cost of existing power routing solutions. Transformers convert the high-voltage electricity that is transmitted through the grid into the low-voltage electricity that is used by homes and businesses. The added converter uses fewer steps to convert some types of power and eliminates unnecessary power storage, among other improvements. The enhanced transformer is more efficient, and it would still work even if the converter fails, ensuring grid reliability.

  2. Cluster Explosive Synchronization in a Power Grid model

    E-Print Network [OSTI]

    Ji, Peng; Menck, Peter J; Rodrigues, Francisco A; Kurths, Jürgen

    2013-01-01

    The emergence of explosive synchronization has been reported as an abrupt transition in complex networks of first-order Kuramoto oscillators. In this Letter, we demonstrate that the nodes in a power grid model, equivalent to a second-order Kuramoto model, perform a cascade of transitions toward a synchronous macroscopic state, a novel phenomenon that we call cluster explosive synchronization. We provide a rigorous analytical treatment using a mean-field analysis in uncorrelated networks. Our findings are in good agreement with numerical simulations and fundamentally deepen the understanding of microscopic mechanisms toward synchronization.

  3. Tutorial of Wind Turbine Control for Supporting Grid Frequency through Active Power Control: Preprint

    SciTech Connect (OSTI)

    Aho, J.; Buckspan, A.; Laks, J.; Fleming, P.; Jeong, Y.; Dunne, F.; Churchfield, M.; Pao, L.; Johnson, K.

    2012-03-01

    As wind energy becomes a larger portion of the world's energy portfolio and wind turbines become larger and more expensive, wind turbine control systems play an ever more prominent role in the design and deployment of wind turbines. The goals of traditional wind turbine control systems are maximizing energy production while protecting the wind turbine components. As more wind generation is installed there is an increasing interest in wind turbines actively controlling their power output in order to meet power setpoints and to participate in frequency regulation for the utility grid. This capability will be beneficial for grid operators, as it seems possible that wind turbines can be more effective at providing some of these services than traditional power plants. Furthermore, establishing an ancillary market for such regulation can be beneficial for wind plant owner/operators and manufacturers that provide such services. In this tutorial paper we provide an overview of basic wind turbine control systems and highlight recent industry trends and research in wind turbine control systems for grid integration and frequency stability.

  4. MATCASC: A tool to analyse cascading line outages in power grids

    E-Print Network [OSTI]

    Koç, Yakup; Araujo, Nuno A M; Warnier, Martijn

    2013-01-01

    Blackouts in power grids typically result from cascading failures. The key importance of the electric power grid to society encourages further research into sustaining power system reliability and developing new methods to manage the risks of cascading blackouts. Adequate software tools are required to better analyze, understand, and assess the consequences of the cascading failures. This paper presents MATCASC, an open source MATLAB based tool to analyse cascading failures in power grids. Cascading effects due to line overload outages are considered. The applicability of the MATCASC tool is demonstrated by assessing the robustness of IEEE test systems and real-world power grids with respect to cascading failures.

  5. A Bidirectional High-Power-Quality Grid Interface With a Novel Bidirectional Noninverted Buck Boost Converter for PHEVs

    SciTech Connect (OSTI)

    Onar, Omer C

    2012-01-01

    Plug-in hybrid electric vehicles (PHEVs) will play a vital role in future sustainable transportation systems due to their potential in terms of energy security, decreased environmental impact, improved fuel economy, and better performance. Moreover, new regulations have been established to improve the collective gas mileage, cut greenhouse gas emissions, and reduce dependence on foreign oil. This paper primarily focuses on two major thrust areas of PHEVs. First, it introduces a grid-friendly bidirectional alternating current/direct current ac/dc dc/ac rectifier/inverter for facilitating vehicle-to-grid (V2G) integration of PHEVs. Second, it presents an integrated bidirectional noninverted buck boost converter that interfaces the energy storage device of the PHEV to the dc link in both grid-connected and driving modes. The proposed bidirectional converter has minimal grid-level disruptions in terms of power factor and total harmonic distortion, with less switching noise. The integrated bidirectional dc/dc converter assists the grid interface converter to track the charge/discharge power of the PHEV battery. In addition, while driving, the dc/dc converter provides a regulated dc link voltage to the motor drive and captures the braking energy during regenerative braking.

  6. A Multigridlike Technique for Power Grid Analysis Joseph N. Kozhaya, Sani R. Nassif, and Farid N. Najm

    E-Print Network [OSTI]

    Najm, Farid N.

    1 A Multigrid­like Technique for Power Grid Analysis Joseph N. Kozhaya, Sani R. Nassif, and Farid N. Najm Abstract--- Modern sub­micron VLSI designs include huge power grids that are required and memory complexity. We propose a novel multigrid­like technique for the analysis of power grids. The grid

  7. A Multigrid-like Technique for Power Grid Analysis Joseph N. Kozhaya, Sani R. Nassif, and Farid N. Najm

    E-Print Network [OSTI]

    Najm, Farid N.

    1 A Multigrid-like Technique for Power Grid Analysis Joseph N. Kozhaya, Sani R. Nassif, and Farid N. Najm Abstract-- Modern sub-micron VLSI designs include huge power grids that are required to distribute and memory complexity. We propose a novel multigrid-like technique for the analysis of power grids. The grid

  8. Distributed Internet-based Load Altering Attacks against Smart Power Grids

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    management, cost-efficient load protection. I. INTRODUCTION The recent advancements in smart grid systemsDistributed Internet-based Load Altering Attacks against Smart Power Grids Amir-Hamed Mohsenian distribution system. Keywords: Smart grid security, Internet-based load altering attacks, demand side

  9. POWER SPECTRAL PARAMETERIZATIONS OF ERROR AS A FUNCTION OF RESOLUTION IN GRIDDED

    E-Print Network [OSTI]

    Kaplan, Alexey

    POWER SPECTRAL PARAMETERIZATIONS OF ERROR AS A FUNCTION OF RESOLUTION IN GRIDDED ALTIMETRY MAPS be expressed in terms of the averages over model grid box areas. In reality, however, observations are either differently by the model grid and by the observational system. This difference turns out to be a major

  10. An Economy Driven Resource Management Architecture for Global Computational Power Grids

    E-Print Network [OSTI]

    Buyya, Rajkumar

    An Economy Driven Resource Management Architecture for Global Computational Power Grids Rajkumar and scheduling driven by computational economy in the emerging grid computing context. They also apply this limitation, we have proposed an infrastructure called GRid Architecture for Computational Economy (GRACE

  11. False Data Injection Attacks with Incomplete Information Against Smart Power Grids

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    False Data Injection Attacks with Incomplete Information Against Smart Power Grids Md. Ashfaqur introduced as an important class of cyber attacks against smart grid's wide area measurement and monitoring Injection Attack, Smart Grid Security, Incomplete Information, Transmission Line Admittance Uncer- tainty

  12. Intelligent sensor and controller framework for the power grid

    SciTech Connect (OSTI)

    Akyol, Bora A.; Haack, Jereme Nathan; Craig, Jr., Philip Allen; Tews, Cody William; Kulkarni, Anand V.; Carpenter, Brandon J.; Maiden, Wendy M.; Ciraci, Selim

    2015-07-28

    Disclosed below are representative embodiments of methods, apparatus, and systems for monitoring and using data in an electric power grid. For example, one disclosed embodiment comprises a sensor for measuring an electrical characteristic of a power line, electrical generator, or electrical device; a network interface; a processor; and one or more computer-readable storage media storing computer-executable instructions. In this embodiment, the computer-executable instructions include instructions for implementing an authorization and authentication module for validating a software agent received at the network interface; instructions for implementing one or more agent execution environments for executing agent code that is included with the software agent and that causes data from the sensor to be collected; and instructions for implementing an agent packaging and instantiation module for storing the collected data in a data container of the software agent and for transmitting the software agent, along with the stored data, to a next destination.

  13. Aalborg Universitet Control System interaction in the VSC-HVDC Grid Connected Offshore Wind Power

    E-Print Network [OSTI]

    Bak, Claus Leth

    Aalborg Universitet Control System interaction in the VSC-HVDC Grid Connected Offshore Wind Power-HVDC Grid Connected Offshore Wind Power Plant. In Proceedings of the Cigré Symposium 2015. CIGRE. General Offshore Wind Power Plant Jakob Glasdam1,2 , Lukasz Hubert Kocewiak1 , Jesper Hjerrild1 , Claus Leth Bak2 1

  14. 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

  15. A Probabilistic Model for the Dynamics of Cascading Failures and Blackouts in Power Grids

    E-Print Network [OSTI]

    Hayat, Majeed M.

    cause failures of power system components such as transmission lines and generators, which, in turn, may1 A Probabilistic Model for the Dynamics of Cascading Failures and Blackouts in Power Grids Mahshid Abstract--Current power grids suffer periodic disturbances that may trigger cascades of component failures

  16. Progress on Our 21st Century Grid: Powering Our Country and Our...

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

    and Our Economy June 3, 2013 - 11:43am Addthis Investments in the nation's electric power grid are delivering significant benefits to consumers and businesses. | Photo...

  17. A planning scheme for penetrating embedded generation in power distribution grids

    E-Print Network [OSTI]

    Wang, Jiankang, Ph. D. Massachusetts Institute of Technology

    2013-01-01

    Penetrating Embedded Generation, or Distributed Generation (DG), in power distribution grids presents great benefits and substantial positive social impacts to utilities, system operators and electricity consumers. Existing ...

  18. Florida Power and Light Comments on Smart Grid Request For Information...

    Office of Environmental Management (EM)

    Challenges. Florida Power and Light (FPL) believes the Smart Grid represents an important new technology platform for the electric utility industry and its customers. This...

  19. Enhanced Short-Term Wind Power Forecasting and Value to Grid Operations: Preprint

    SciTech Connect (OSTI)

    Orwig, K.; Clark, C.; Cline, J.; Benjamin, S.; Wilczak, J.; Marquis, M.; Finley, C.; Stern, A.; Freedman, J.

    2012-09-01

    The current state of the art of wind power forecasting in the 0- to 6-hour time frame has levels of uncertainty that are adding increased costs and risk on the U.S. electrical grid. It is widely recognized within the electrical grid community that improvements to these forecasts could greatly reduce the costs and risks associated with integrating higher penetrations of wind energy. The U.S. Department of Energy has sponsored a research campaign in partnership with the National Oceanic and Atmospheric Administration (NOAA) and private industry to foster improvements in wind power forecasting. The research campaign involves a three-pronged approach: 1) a 1-year field measurement campaign within two regions; 2) enhancement of NOAA's experimental 3-km High-Resolution Rapid Refresh (HRRR) model by assimilating the data from the field campaign; and 3) evaluation of the economic and reliability benefits of improved forecasts to grid operators. This paper and presentation provides an overview of the regions selected, instrumentation deployed, data quality and control, assimilation of data into HRRR, and preliminary results of HRRR performance analysis.

  20. Demonstration and Results of Grid Integrated Technologies at the Demand to Grid Laboratory (D2G Lab): Phase I Operations Report

    E-Print Network [OSTI]

    Ghatikar, Girish

    2014-01-01

    connected to Coulomb’s ChargePoint network. This EV chargerAutoGrid’s integration of ChargePoint API into DROMS The

  1. Distributed Monitoring for Prevention of Cascading Failures in Operational Power Grids

    E-Print Network [OSTI]

    Warnier, Martijn; Koç, Yakup; Pauwels, Eric

    2015-01-01

    Electrical power grids are vulnerable to cascading failures that can lead to large blackouts. Detection and prevention of cascading failures in power grids is impor- tant. Currently, grid operators mainly monitor the state (loading level) of individual components in power grids. The complex architecture of power grids, with many interdependencies, makes it difficult to aggregate data provided by local compo- nents in a timely manner and meaningful way: monitoring the resilience with re- spect to cascading failures of an operational power grid is a challenge. This paper addresses this challenge. The main ideas behind the paper are that (i) a robustness metric based on both the topology and the operative state of the power grid can be used to quantify power grid robustness and (ii) a new proposed a distributed computation method with self-stabilizing properties can be used to achieving near real-time monitoring of the robustness of the power grid. Our con- tributions thus provide insight into the resilience wit...

  2. Enhancing the Smart Grid: Integrating Clean Distributed and Renewable...

    Office of Environmental Management (EM)

    & Publications Electricity Advisory Committee Meeting Presentations October 2011 - Microgrids Smart Grid R&D Multi-Year Program Plan (2010-2014) - September 2012 Update Smart...

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

    SciTech Connect (OSTI)

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

    2007-01-01

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

  4. Two-Stage Robust Power Grid Optimization Problem

    E-Print Network [OSTI]

    2011-01-02

    transmission capacity limits for a given planning horizon (e.g., one week) ... power market was studied in [22], and to estimate the potential contribution of demand flexibility ... Integration in the Liberalised Electricity Markets (WILMAR) model [1]. ... literature, such as inventory theory [8, 9], network design [2], and lot-

  5. Thermal-Aware CAD for Modern Integrated Circuits

    E-Print Network [OSTI]

    Logan, Sheldon Logan Paul

    2013-01-01

    in 3d circuits for power grid integrity. IEEE Design & Test1994. [60] S. R. Nassif. Power grid analysis benchmarks. Inbased algorithm for power grid design using locality. IEEE

  6. Jeudi 3 octobre 2013 Grid integration of REN

    E-Print Network [OSTI]

    Canet, Léonie

    of Smartgrids Nouredine Hadjsaid, Grenoble INP/ENSE3, laboratoire G2ELAB, CNRS #12;MV/LV 20kV/400V HV/MV 63kV/20 de distribution Opérateur Systčme Production Transport Distribution SmartGrids Evolution: Value chain and implication SmartGrids value chain Interface des c Interface des c #12;Tools for managing complexity ICT

  7. An Interview with Professor Alexandra von Meier on an Efficient Electric Grid: Improving Visibility and Integrating Renewable Sources

    E-Print Network [OSTI]

    Chowdhary, Harshika; Gill, Manraj; McGuinness, Philippa; Miller, Daniel; Patel, Saavan

    2015-01-01

    and future power distribution grids, micro-synchrophasor technology and the challenges with optimizing the incorporation of renewable energy

  8. Correlated Failures of Power Systems: Analysis of the Nordic Grid

    E-Print Network [OSTI]

    Sastry, S. Shankar

    , as with the current developments of the SmartGrid [1]. Since many vital parts of today's society require reliable

  9. Modeling and Simulation of the EV Charging in a Residential Distribution Power Grid

    E-Print Network [OSTI]

    Al Faruque, Mohammad Abdullah

    by changing the transformers and adding more power plants to provide more energy to the residential grid [5Modeling and Simulation of the EV Charging in a Residential Distribution Power Grid Fereidoun of California, Irvine Irvine, California, USA {fahourai, ibhuang, mohammad.alfaruque} @ uci.edu Abstract

  10. HIGH-PERFORMANCE POWER GRIDS FOR NANOMETER TECHNOLOGIES Sachin S. Sapatnekar

    E-Print Network [OSTI]

    Sapatnekar, Sachin

    empirically observed that the mean time to failure for a wire can be controlled by limiting its current is the on-chip power grid, and therefore, controlling power grid noise is of paramount importance for current and future de- signs. Moreover, variations in the voltage level of the supply and ground networks

  11. Aalborg Universitet Economic Power Dispatch of Distributed Generators in a Grid-Connected Microgrid

    E-Print Network [OSTI]

    Vasquez, Juan Carlos

    Aalborg Universitet Economic Power Dispatch of Distributed Generators in a Grid-Connected Microgrid., & Vasquez, J. C. (2015). Economic Power Dispatch of Distributed Generators in a Grid-Connected Microgrid-Connected Microgrid Adriana C. Luna, Nelson L. Diaz, Fabio Andrade, Mois`es Graells§, Josep M. Guerrero, and Juan C

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

    E-Print Network [OSTI]

    1 Improved Power Grid Stability and Efficiency with a Building-Energy Cyber-Physical System Mary in the context of the power grid and its interaction with buildings. We describe significant issues in energy-efficient, and the building operator was unable to "store energy" before an event occurs or must alter demand only after

  13. Design Framework of Compute Power Market for Peer-to-Peer and Grid Environments

    E-Print Network [OSTI]

    Melbourne, University of

    ) is a market-based resource management on Internet-wide computational resources. It transforms computers Market was first proposed in [7]. Compute Power Market transforms the grid computing environmentDesign Framework of Compute Power Market for Peer-to-Peer and Grid Environments Gian Chand Sodhy

  14. A Resilient Real-Time Agent-Based System for a Reconfigurable Power Grid

    E-Print Network [OSTI]

    Tolbert, Leon M.

    blackout of August 14, 2003 was a wakeup call for both the industry and academia to re-think techniques]. The vulnerability of the power grid during the August 14 blackout calls for a re-design of the power grid at both

  15. The Impact of Distributed Generation on Power Transmission Grid Dynamics D. E. Newman B. A. Carreras M. Kirchner I. Dobson

    E-Print Network [OSTI]

    Dobson, Ian

    The Impact of Distributed Generation on Power Transmission Grid Dynamics D. E. Newman B. A on the robustness of the power transmission grid using a dynamic model of the power transmission system (OPA of the transmission grid. This intuitive improvement comes simply from the realization that less power would need

  16. A Hybrid Multi-Agent Framework for Load Management in Power Grid

    E-Print Network [OSTI]

    Zhang, Minjie

    A Hybrid Multi-Agent Framework for Load Management in Power Grid Systems Minjie Zhang, Dayong Ye, Quan Bai, Danny Sutanto, and Kashem Muttaqi Abstract. In order to cope with load management in power

  17. Wind Power Integration: Exploring Impacts and Alternatives

    E-Print Network [OSTI]

    Walter, M.Todd

    Wind Power Integration: Exploring Impacts and Alternatives Assist. Prof. C sustainable sources of energy. The idea of harnessing wind energy has been there have been no less than fifteen in-depth wind integration studies

  18. Smoothing effect for spatially distributed renewable resources and its impact on power grid robustness

    E-Print Network [OSTI]

    Nagata, Motoki; Fujiwara, Naoya; Tanaka, Gouhei; Suzuki, Hideyuki; Aihara, Kazuyuki

    2015-01-01

    In this paper, we show that spatial correlation of renewable energy outputs greatly influences the robustness of power grids. First, we propose a new index for the spatial correlation among renewable energy outputs. We find that the spatial correlation of renewable energy outputs in a short time-scale is as weak as that caused by independent random variables and that in a long time-scale is as strong as that under perfect synchronization. Then, by employing the topology of the power grid in eastern Japan, we analyze the robustness of the power grid with spatial correlation of renewable energy outputs. The analysis is performed by using a realistic differential-algebraic equations model and the result shows that the spatial correlation of the energy resources strongly degrades the robustness of the power grid. Our result suggests that the spatial correlation of the renewable energy outputs should be taken into account when estimating the stability of power grids.

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

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

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

  20. Transportation and Stationary Power Integration Workshop: ""An...

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

    ""An Automaker's Views on the Transition to Hydrogen and Fuel Cell Vehicles Transportation and Stationary Power Integration Workshop: ""An Automaker's Views on the Transition to...

  1. Transportation and Stationary Power Integration with Hydrogen...

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

    with Hydrogen and Fuel Cell Technology in Connecticut Transportation and Stationary Power Integration with Hydrogen and Fuel Cell Technology in Connecticut Overview of strengths,...

  2. Transportation and Stationary Power Integration Workshop Agenda...

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

    Agenda, October 27, 2008, Phoenix, Arizonia Transportation and Stationary Power Integration Workshop Agenda, October 27, 2008, Phoenix, Arizonia Agenda for the Transportation and...

  3. Transportation and Stationary Power Integration: Workshop Proceedings...

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

    Transportation and Stationary Power Integration Workshop held on October 27, 2008 in Phoenix, Arizona tspiproceedings.pdf More Documents & Publications U.S. DOE Hydrogen and...

  4. Large-deviation properties of resilience of power grids

    E-Print Network [OSTI]

    Dewenter, Timo

    2014-01-01

    We study the distributions of the resilience of power flow models against transmission line failures via a so-called backup capacity. We consider three ensembles of random networks and in addition, the topology of the British transmission power grid. The three ensembles are Erd\\H{o}s-R\\'enyi random graphs, Erd\\H{o}s-R\\'enyi random graphs with a fixed number of links, and spatial networks where the nodes are embedded in a two dimensional plane. We investigate numerically the probability density functions (pdfs) down to the tails to gain insight in very resilient and very vulnerable networks. This is achieved via large-deviation techniques which allow us to study very rare values which occur with probability densities below $10^{-160}$. We find that the right tail of the pdfs towards larger backup capacities follows an exponential with a strong curvature. This is confirmed by the rate function which approaches a limiting curve for increasing network sizes. Very resilient networks are basically characterized by ...

  5. Understanding Variability and Uncertainty of Photovoltaics for Integration with the Electric Power System

    E-Print Network [OSTI]

    Mills, Andrew

    2010-01-01

    on Operation of California Power Grid. California Energyto the Medium Voltage Power Grid. 2nd International Workshopoperations of the U.S. power grid and presents a number of

  6. Analysis of a power grid using the Kuramoto-like model

    E-Print Network [OSTI]

    Filatrella, Giovanni; Pedersen, Niels Falsig

    2008-01-01

    We show that there is a link between the Kuramoto paradigm and another system of synchronized oscillators, namely an electrical power distribution grid of generators and consumers. The purpose of this work is to show both the formal analogy and some practical consequences. The mapping can be made quantitative, and under some necessary approximations a class of Kuramoto-like models, those with bimodal distribution of the frequencies, is most appropriate for the power-grid. In fact in the power-grid there are two kinds of oscillators: the 'sources' delivering power to the 'consumers'.

  7. Analysis of a power grid using the Kuramoto-like model

    E-Print Network [OSTI]

    Giovanni Filatrella; Arne Hejde Nielsen; Niels Falsig Pedersen

    2008-02-16

    We show that there is a link between the Kuramoto paradigm and another system of synchronized oscillators, namely an electrical power distribution grid of generators and consumers. The purpose of this work is to show both the formal analogy and some practical consequences. The mapping can be made quantitative, and under some necessary approximations a class of Kuramoto-like models, those with bimodal distribution of the frequencies, is most appropriate for the power-grid. In fact in the power-grid there are two kinds of oscillators: the 'sources' delivering power to the 'consumers'.

  8. Pilot evaluation of electricity-reliability and power-quality monitoring in California's Silicon Valley with the I-Grid(R) system

    E-Print Network [OSTI]

    Eto, Joseph; Divan, Deepak; Brumsickle, William

    2004-01-01

    affect the regional power grid. January 23, 2003, AirplaneParadigm in Distribution Grid Power Quality And Reliability5 3. Description of the I-Grid Power-Quality and Reliability

  9. Towards Effective Clustering Techniques for the Analysis of Electric Power Grids

    SciTech Connect (OSTI)

    Hogan, Emilie A.; Cotilla Sanchez, Jose E.; Halappanavar, Mahantesh; Wang, Shaobu; Mackey, Patrick S.; Hines, Paul; Huang, Zhenyu

    2013-11-30

    Clustering is an important data analysis technique with numerous applications in the analysis of electric power grids. Standard clustering techniques are oblivious to the rich structural and dynamic information available for power grids. Therefore, by exploiting the inherent topological and electrical structure in the power grid data, we propose new methods for clustering with applications to model reduction, locational marginal pricing, phasor measurement unit (PMU or synchrophasor) placement, and power system protection. We focus our attention on model reduction for analysis based on time-series information from synchrophasor measurement devices, and spectral techniques for clustering. By comparing different clustering techniques on two instances of realistic power grids we show that the solutions are related and therefore one could leverage that relationship for a computational advantage. Thus, by contrasting different clustering techniques we make a case for exploiting structure inherent in the data with implications for several domains including power systems.

  10. Integration of Storage Devices into Power Systems

    E-Print Network [OSTI]

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

  11. Incremental Analysis of Power Grids using Backward Random Walks Baktash Boghrati and Sachin S. Sapatnekar, University of Minnesota, Minneapolis, MN

    E-Print Network [OSTI]

    Sapatnekar, Sachin

    intensive task. In this work, we first introduce an accurate modeling methodology for power grids thatA Incremental Analysis of Power Grids using Backward Random Walks Baktash Boghrati and Sachin S. Sapatnekar, University of Minnesota, Minneapolis, MN Power grid design and analysis is a critical part

  12. Preprint for Space Weather Journal (2014) Assessing the impact of space weather on the electric power grid

    E-Print Network [OSTI]

    Schrijver, Karel

    2014-01-01

    power grid based on insurance claims for industrial electrical equipment C. J. Schrijver1 , R. Dobbins2 disturbances in the electric power grid. Here, we perform a statistical analysis of 11,242 insurance claims on geomagnetic activity mirrors that of major disturbances in the U.S. high-voltage elec- tric power grid

  13. Discrete Event Simulation of QoS of a SCADA System Interconnecting a Power Grid and a Telco Network

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Discrete Event Simulation of QoS of a SCADA System Interconnecting a Power Grid and a Telco Network, Telco network and Power grid act as a whole heterogeneous network. While SCADA system and Telco network can be well represented by means of discrete event simulators. To represent a Power grid a continuous

  14. Dartmouth College Computer Science Technical Report TR2010-668 Creating Large Disturbances in the Power Grid

    E-Print Network [OSTI]

    in the Power Grid: Methods of Attack After Cyber Infiltration Senior Honors Thesis June 2010 Loren Sands are pursuing methods of securing the cyber aspect of the U.S. power grid, one of the country's most critical attacks. In this paper I discuss the physical and cyber systems that compose the power grid, and I explore

  15. Integrated Solar Power Converters: Wafer-Level Sub-Module Integrated DC/DC Converter

    SciTech Connect (OSTI)

    2012-02-09

    Solar ADEPT Project: CU-Boulder is developing advanced power conversion components that can be integrated into individual solar panels to improve energy yields. The solar energy that is absorbed and collected by a solar panel is converted into useable energy for the grid through an electronic component called an inverter. Many large, conventional solar energy systems use one, central inverter to convert energy. CU-Boulder is integrating smaller, microinverters into individual solar panels to improve the efficiency of energy collection. The University’s microinverters rely on electrical components that direct energy at high speeds and ensure that minimal energy is lost during the conversion process—improving the overall efficiency of the power conversion process. CU-Boulder is designing its power conversion devices for use on any type of solar panel.

  16. Grid Integration and the Carrying Capacity of the U.S. Grid to...

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

    ... 12 Table 3. Evaluations of Transmission Costs in Recent U.S. Integration Studies ... 13 Table...

  17. Applications for Coal and Natural Gas Power Plants in a Smart...

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

    Corporation Smart Grid Task Force * Reliability standards for bulk power Work Areas - Integration of smart grid onto bulk power system requires development of new planning and...

  18. Grid Integration of Aggregated Demand Response, Part 2: Modeling Demand Response in a Production Cost Model

    Broader source: Energy.gov [DOE]

    Renewable integration studies have evaluated many challenges associated with deploying large amounts of variable wind and solar generation technologies. These studies can evaluate operational impacts associated with variable generation, benefits of improved wind and solar resource forecasting, and trade-offs between institutional changes, including increasing balancing area cooperation and technical changes such as installing new flexible generation. Demand response (DR) resources present a potentially important source of grid flexibility and can aid in integrating variable generation; however, integration analyses have not yet incorporated these resources explicitly into grid simulation models as part of a standard toolkit for resource planners.

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

    E-Print Network [OSTI]

    Boyer, Edmond

    Power Smoothing Control in a Grid-Connected Marine Current Turbine System for Compensating Swell speed may lead to strong fluctuations in the power extracted by a marine current turbine (MCT). During disturbances. Index Terms--Marine current turbine, power fluctuation, swell effect, power smoothing control

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

    E-Print Network [OSTI]

    Sanders, Seth

    Multicore Architecture for Control and Emulation of Power Electronics and Smart Grid Systems Michel of Technology Power Electronics Power electronics is broadly defined as a solid-state energy conversion of power electronic circuits are: electronic (solid-state) switches and energy storage elements on one side

  1. IEEE TRANSACTIONS ON SMART GRID, VOL. 4, NO. 2, JUNE 2013 1087 Reliability Modeling and Evaluation of Power

    E-Print Network [OSTI]

    Fu, Yong

    IEEE TRANSACTIONS ON SMART GRID, VOL. 4, NO. 2, JUNE 2013 1087 Reliability Modeling and Evaluation, and Mirrasoul J. Mousavi, Senior Member, IEEE Abstract--Smart grid technologies leveraging advancements of smart grid monitoring and proposes a mathemat- ical model to assess its impact on power grid reliability

  2. Transdisciplinary electric power grid science Charles D. Brummitta,b,1

    E-Print Network [OSTI]

    D'Souza, Raissa

    OPINION Transdisciplinary electric power grid science Charles D. Brummitta,b,1 , Paul D. H. Hinesc-long feedbacks surrounding electrical infrastructure (includ- ing weather, policy, public sentiment, mar- kets storm damage or build distributed generation?). The "smart grid," which monitors and controls electrical

  3. A Novel Application of Parallel Betweenness Centrality to Power Grid Contingency Analysis

    SciTech Connect (OSTI)

    Jin, Shuangshuang; Huang, Zhenyu; Chen, Yousu; Chavarría-Miranda, Daniel; Feo, John T.; Wong, Pak C.

    2010-04-19

    In Energy Management Systems, contingency analysis is commonly performed for identifying and mitigating potentially harmful power grid component failures. The exponentially increasing combinatorial number of failure modes imposes a significant computational burden for massive contingency analysis. It is critical to select a limited set of high-impact contingency cases within the constraint of computing power and time requirements to make it possible for real-time power system vulnerability assessment. In this paper, we present a novel application of parallel betweenness centrality to power grid contingency selection. We cross-validate the proposed method using the model and data of the western US power grid, and implement it on a Cray XMT system - a massively multithreaded architecture - leveraging its advantages for parallel execution of irregular algorithms, such as graph analysis. We achieve a speedup of 55 times (on 64 processors) compared against the single-processor version of the same code running on the Cray XMT. We also compare an OpenMP-based version of the same code running on an HP Superdome shared-memory machine. The performance of the Cray XMT code shows better scalability and resource utilization, and shorter execution time for large-scale power grids. This proposed approach has been evaluated in PNNL’s Electricity Infrastructure Operations Center (EIOC). It is expected to provide a quick and efficient solution to massive contingency selection problems to help power grid operators to identify and mitigate potential widespread cascading power grid failures in real time.

  4. Agent Modeling for Integrated Power Systems

    E-Print Network [OSTI]

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

  5. Wind Power Forecasting Data

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

    Operations Call 2012 Retrospective Reports 2012 Retrospective Reports 2011 Smart Grid Wind Integration Wind Integration Initiatives Wind Power Forecasting Wind Projects Email...

  6. Grid Integration and the Carrying Capacity of the U.S. Grid to Incorporate

    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:FinancingPetroleum12,Executive CompensationEnergyGetDepartment of|GreenerGrid

  7. Dynamic pricing and stabilization of supply and demand in modern electric power grids

    E-Print Network [OSTI]

    Roozbehani, Mardavij

    The paper proposes a mechanism for real-time pricing of electricity in smart power grids, with price stability as the primary concern. In previous publications the authors argued that relaying the real-time wholesale market ...

  8. Smart (In-home) Power Scheduling for Demand Response on the Smart Grid

    E-Print Network [OSTI]

    Yener, Aylin

    1 Smart (In-home) Power Scheduling for Demand Response on the Smart Grid Gang Xiong, Chen Chen consumption are part of demand response, which relies on varying price of electricity to reduce peak demand

  9. An Online Procurement Auction for Power Demand Response in Storage-Assisted Smart Grids

    E-Print Network [OSTI]

    Li, Zongpeng

    An Online Procurement Auction for Power Demand Response in Storage-Assisted Smart Grids Ruiting discharging at times when supply is tight. This work aims at a systematic study of such demand response

  10. Robustness of interdependent networks: The case of communication networks and the power grid

    E-Print Network [OSTI]

    Parandehgheibi, Marzieh

    We study the robustness of interdependent networks, in which the state of one network depends on the state of the other network and vice versa. In particular, we focus on the interdependency between the power grid and ...

  11. Large Power Transformers and the U.S. Electric Grid Report Update...

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

    The Office of Electricity Delivery and Energy Reliability has released an update to its 2012 Large Power Transformers and the U.S. Electric Grid report. The new report includes...

  12. QUALIFIED FORECAST OF ENSEMBLE POWER PRODUCTION BY SPATIALLY DISPERSED GRID-CONNECTED PV SYSTEMS

    E-Print Network [OSTI]

    Heinemann, Detlev

    , Energy Meteorology Group, D-26111 Oldenburg, Germany, elke.lorenz@uni-oldenburg.de + UniversityQUALIFIED FORECAST OF ENSEMBLE POWER PRODUCTION BY SPATIALLY DISPERSED GRID- CONNECTED PV SYSTEMS Schneider° * University of Oldenburg, Institute of Physics, Energy and Semiconductor Research Laboratory

  13. Technical Meeting: Buildings-to-Grid Integration | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaics »Tankless WaterEnergy and the EuropeanBuildings-to-Grid

  14. Articles about Grid Integration and Transmission | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataEnergy Webinar:I Due DateOpportunity | DepartmentEducationGrid

  15. Renewable Electricity Grid Integration Roadmap for Mexico. Supplement to the IEA Expert Group Report on Recommended Practices for Wind Integration Studies

    SciTech Connect (OSTI)

    Parsons, Brian; Cochran, Jaquelin; Watson, Andrea; Katz, Jessica; Bracho, Ricardo

    2015-08-19

    As a recognized leader in efforts to mitigate global climate change, the Government of Mexico (GOM) works proactively to reduce emissions, demonstrating strong political will and capacity to comprehensively address climate change. Since 2010, the U.S. government (USG) has supported these efforts by partnering with Mexico under the Enhancing Capacity for Low Emission Development Strategies (EC-LEDS) program. Through the program, the USG has partnered with Mexico’s Ministry of Energy (SENER), as well as other government agencies, to support GOM in reaching its clean energy and climate change goals. Specifically, the EC-LEDS program is supporting GOM’s clean energy goal of generating 35% of its electricity from renewable energy (RE) by 2024. EC-LEDS, through the U.S. Agency for International Development (USAID) and the U.S Department of Energy’s (DOE’s) National Renewable Energy Laboratory (NREL), has been collaborating with SENER and GOM interagency working group—the Consejo Consultivo para las Energías Renovables (Consultative Council on Renewable Energy)—to create a grid integration roadmap for variable RE. 1 A key objective in creating a grid integration roadmap is assessing likely impacts of wind and solar energy on the power system and modifying planning and operations accordingly. This paper applies best practices in conducting a grid integration study to the Mexican context.

  16. 248 IEEE TRANSACTIONS ON POWER DELIVERY, VOL. 20, NO. 1, JANUARY 2005 Micro-Grid Autonomous Operation During

    E-Print Network [OSTI]

    Lehn, Peter W.

    248 IEEE TRANSACTIONS ON POWER DELIVERY, VOL. 20, NO. 1, JANUARY 2005 Micro-Grid Autonomous--Distributed generation, distributed resources, electromagnetic transients, islanding, micro-grid, power sharing, voltage events and (ii) fault events that lead to islanding of a distribution subsystem and formation of a micro-grid

  17. Managing Wind Power Forecast Uncertainty in Electric Grids Submitted in partial fulfillment of the requirements for

    E-Print Network [OSTI]

    Instituto de Sistemas e Robotica

    Managing Wind Power Forecast Uncertainty in Electric Grids Submitted in partial fulfillment;iii Abstract Electricity generated from wind power is both variable and uncertain. Wind forecasts prices. Wind power forecast errors for aggregated wind farms are often modeled with Gaussian

  18. Near-Millimeter Wave Issues for a Space Power Grid Narayanan Komerath, Vigneshwar Venkat, Jason Fernandez

    E-Print Network [OSTI]

    for the power generated when the sun is brightest or the wind is strongest. Real-time beaming also allows collectors and converters to generate beamed microwaves from concentrated solar power, feeding into the established space power grid at lower costs. In Phase 3, large areas of ultra light collectors in high orbits

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

    E-Print Network [OSTI]

    Devadas, Srinivas

    an efficient interface between variable speed wind turbines and the grid that enables maximum wind power consumption by more than 30% [2]. B. Electronic Design Automation (EDA) of Power Electronics The level of automation in the design, prototyping, verifi- cation and testing of power electronics systems is, in many

  20. Vehicle-to-Grid Power: Battery, Hybrid, and Fuel Cell Vehicles

    E-Print Network [OSTI]

    Firestone, Jeremy

    i Vehicle-to-Grid Power: Battery, Hybrid, and Fuel Cell Vehicles as Resources for Distributed more robust. This report analyzes V2G power from three types of EDVs--battery, hybrid, and fuel cell and prices are high. Fuel cell and hybrid EDVs are sources of new power generation. For economic reasons

  1. Vehicle-to-Grid Power: Battery, Hybrid, and Fuel Cell Vehicles

    E-Print Network [OSTI]

    Firestone, Jeremy

    Vehicle-to-Grid Power: Battery, Hybrid, and Fuel Cell Vehicles as Resources for Distributed, and fuel cell. Battery EDVs can store electricity, charging during low demand times and discharging when power is scarce and prices are high. Fuel cell and hybrid EDVs are sources of new power generation

  2. Need-based Communication for Smart Grid: When to Inquire Power Price?

    E-Print Network [OSTI]

    Li, Husheng

    2010-01-01

    In smart grid, a home appliance can adjust its power consumption level according to the realtime power price obtained from communication channels. Most studies on smart grid do not consider the cost of communications which cannot be ignored in many situations. Therefore, the total cost in smart grid should be jointly optimized with the communication cost. In this paper, a probabilistic mechanism of locational margin price (LMP) is applied and a model for the stochastic evolution of the underlying load which determines the power price is proposed. Based on this framework of power price, the problem of determining when to inquire the power price is formulated as a Markov decision process and the corresponding elements, namely the action space, system state and reward function, are defined. Dynamic programming is then applied to obtain the optimal strategy. A simpler myopic approach is proposed by comparing the cost of communications and the penalty incurred by using the old value of power price. Numerical resul...

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

    SciTech Connect (OSTI)

    Bird, L.; Lew, D.

    2012-09-01

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

  4. Panel 2, H2 Grid Integration: Tools and Analyses

    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 RankADVANCED MANUFACTURINGEnergy Bills andOrder 422.1, CONDUCT P - .EnergyHYDROGEN ENERGY H 2 Grid

  5. California's future `Smart Grid' system will integrate solar, wind, and other renewable electricity generation with energy storage to meet our electricity demands and to support electric transportation. The Sustainable Integrated Grid

    E-Print Network [OSTI]

    California at Riverside, University of

    California's future `Smart Grid' system will integrate solar, wind, and other renewable electricity. The Sustainable Integrated Grid Initiative at UCR combines these elements so that researchers, utility personnel and wind are intermittent in nature and may not be available when needed. Electrical energy stored

  6. Low power integrated pumping and valving arrays for microfluidic...

    Office of Scientific and Technical Information (OSTI)

    Low power integrated pumping and valving arrays for microfluidic systems Citation Details In-Document Search Title: Low power integrated pumping and valving arrays for microfluidic...

  7. Overview of Options to Integrate Stationary Power Generation...

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

    Options to Integrate Stationary Power Generation from Fuel Cells with Hydrogen Demand for the Transportation Sector Overview of Options to Integrate Stationary Power Generation...

  8. EECS 498 Special Topic Grid Integration of Alternative

    E-Print Network [OSTI]

    Cafarella, Michael J.

    extraction. 5. Fuel cells: electrochemistry, construction, balance of plant. 6. Energy storage technologies and topologies. 4. Photovoltaic (PV) cells: energy conversion principles, electrical modeling, optimal power

  9. Power Grid Verification Using Node and Branch Nahi Abdul Ghani

    E-Print Network [OSTI]

    Najm, Farid N.

    conservative and tight LP. Results show a dramatic reduction in the number of LPs thus making vectorless grid-case voltage drops which, in turn, entails the solution of as many linear programs (LPs) as there are nodes among node voltage drops and among branch currents. This allows us to replace a group of LPs by one

  10. Empirical Analysis of the Variability of Wind Generation in India: Implications for Grid Integration

    SciTech Connect (OSTI)

    Phadke, Amol; Abhyankar, NIkit; Rao, Poorvi

    2014-06-17

    We analyze variability in load and wind generation in India to assess its implications for grid integration of large scale wind projects using actual wind generation and load data from two states in India, Karnataka and Tamil Nadu. We compare the largest variations in load and net load (load ?wind, i.e., load after integrating wind) that the generation fleet has to meet. In Tamil Nadu, where wind capacity is about 53percent of the peak demand, we find that the additional variation added due to wind over the current variation in load is modest; if wind penetration reaches 15percent and 30percent by energy, the additional hourly variation is less than 0.5percent and 4.5percent of the peak demand respectively for 99percent of the time. For wind penetration of 15percent by energy, Tamil Nadu system is found to be capable of meeting the additional ramping requirement for 98.8percent of the time. Potential higher uncertainty in net load compared to load is found to have limited impact on ramping capability requirements of the system if coal plants can me ramped down to 50percent of their capacity. Load and wind aggregation in Tamil Nadu and Karnataka is found to lower the variation by at least 20percent indicating the benefits geographic diversification. These findings suggest modest additional flexible capacity requirements and costs for absorbing variation in wind power and indicate that the potential capacity support (if wind does not generate enough during peak periods) may be the issue that has more bearing on the economics of integrating wind

  11. Building-Grid Integration Research and Development Innovators Program (BIRD IP)

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Building Technologies Office (BTO) within the Department of Energy (DOE) is seeking graduate students interested in exploring building-grid integration and development (R&D) technology concepts that can improve the operating efficiency of buildings and increase penetration of distributed renewable energy generation, leading to more efficient buildings and cleaner generation of electricity.

  12. The Role of Smart Grids in Integrating Renewable Energy

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

    power for 40% of the hours in a year, it is not easy to predict far in advance when generation will occur. Figure 1 illustrates hourly output from a single wind farm on 30...

  13. Semantic Information Modeling for Emerging Applications in Smart Grid

    E-Print Network [OSTI]

    Hwang, Kai

    Semantic Information Modeling for Emerging Applications in Smart Grid Qunzhi Zhou, Sreedhar Grid modernizes power grid by integrating digital and information technologies. Millions of smart existing and new information sources with the grow of Smart Grid information space. In particular, dynamic

  14. 1464 IEEE TRANSACTIONS ON SMART GRID, VOL. 4, NO. 3, SEPTEMBER 2013 Distributed Optimal Power Flow

    E-Print Network [OSTI]

    Giannakis, Georgios

    --Distributed optimization, distribution feeders, microgrids, optimal power flow, semidefinite relaxation. I. INTRODUCTION MICROGRIDS are portions of a power distribution net- work located downstream of the distribution substation) and energy storage devices [1]. A microgrid can operate in either grid-connected, islanded, or hybrid modes

  15. Distributing Power to Electric Vehicles on a Smart Grid Yingjie Zhou*,

    E-Print Network [OSTI]

    Maxemchuk, Nicholas F.

    Distributing Power to Electric Vehicles on a Smart Grid Yingjie Zhou*, , Student Member, IEEE.edu Abstract--Electric vehicles create a demand for additional electrical power. As the popularity of electric. However, in the interim the rate at which electric vehicles can be deployed will depend on our ability

  16. AN INNOVATIVE RTP-BASED RESIDENTIAL POWER SCHEDULING SCHEME FOR SMART GRIDS

    E-Print Network [OSTI]

    Snyder, Larry

    as demand response for residential power usage. In this scheme, the Energy Management Controller (EMCAN INNOVATIVE RTP-BASED RESIDENTIAL POWER SCHEDULING SCHEME FOR SMART GRIDS Chen Chen , Shalinee for consumers, but also reduce peak load and the variance between demand and supply, while avoiding the "rebound

  17. NREL Energy Models Examine the Potential for Wind and Solar Grid Integration (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-11-01

    As renewable energy generating sources, such as wind turbines and solar power systems, reach high levels of penetration in parts of the United States, the National Renewable Energy Laboratory (NREL) is helping the utility industry to peer into the future. Using software modeling tools that the lab developed, NREL is examining the future operation of the electrical grid as renewable energy continues to grow.

  18. Grid Impacts of Wind Power Variability: Recent Assessments from a Variety of Utilities in the United States (Presentation)

    SciTech Connect (OSTI)

    Parsons, B.

    2006-03-01

    Presentation for the European Wind Energy Conference held February 27--March 2, 2006, in Athens, Greece, showing grid impacts of wind power variability.

  19. Stochastic Programming Formulation for Integrating Renewables into the Distribution Grid

    E-Print Network [OSTI]

    Ernst, Damien

    #12;Distribution Networks Distribution networks had been designed to carry power from the transmis. The set of scenarios sizing the network infrastructure might not be frequent. Much more kilometers of electricity markets : .... Day-ahead market Intraday market Time ... Period 1 Period 2 Period T ... Real

  20. ,"Year",,"Summer",,,"Eastern Power Grid",,,,,,,,,,,,,,,,,,"Texas Power Grid",,,"Western Power Grid"

    U.S. Energy Information Administration (EIA) 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 PageMonthly","10/2015"4,"Ames City of",6,1,"Omaha Public PowerOECD/IEA -Annual",2014Proved Reserves,Summary"Shale Proved Reserves (Billion4b. Summer

  1. ,"Year",,"Summer",,,"Eastern Power Grid",,,,,,,,,,,,,,,,,,,,,,,,"Texas Power Grid",,,"Western Power Grid"

    U.S. Energy Information Administration (EIA) 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 PageMonthly","10/2015"4,"Ames City of",6,1,"Omaha Public PowerOECD/IEA -Annual",2014Proved Reserves,Summary"Shale Proved Reserves (Billion4b. Summer4a.

  2. Smart-Grid Ready PV Inverters with Utility Communication

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

    INTEGRATION Smart-Grid Ready PV Inverters with Utility Communication Electric Power Research Institute Brian Seal, Tom Key, Aminul Huque, Lindsey Rogers Technical Contact Brian...

  3. A Holonic Control Architecture for a Heterogeneous Multi-Objective Smart Micro-Grid

    E-Print Network [OSTI]

    Diaconescu, Ada

    A Holonic Control Architecture for a Heterogeneous Multi-Objective Smart Micro-Grid Sylvain Frey--Designing the control infrastructure of future "smart" power grids is a challenging task. Such grids will integrate challenges. Keywords-holon; micro-grid; controller integration; I. INTRODUCTION Over the next decades

  4. NREL: Wind Research - Grid Integration of Offshore Wind

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

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

  5. Request for Comments on the Electric Grid Integration Technical Workshops

    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 DeliciousMathematicsEnergyInterestedReplacement-2-A Wholesale Power RateEnergy Exclusions RequestRequest

  6. Control of a wind park with doubly fed induction generators in support of power system stability in case of grid faults

    E-Print Network [OSTI]

    and the transmission grid in the power system simulation software DIgSILENT Power Factory. The results demonstrate penetration of wind power the power system operators are revising nowa- days the grid codes in several turbines to support directly the power system in case of grid faults. The attention is thus on both

  7. Ten Frequently Asked Questions and Answers about Wind Energy Grid Integration

    SciTech Connect (OSTI)

    Milligan, M.

    2008-02-07

    First presented to the Kansas State Legislature in 2008, these slides present 11 questions and answers regarding basic wind power issues including technology, transmission, and integration.

  8. Ten Frequently Asked Questions and Answers About Wind Energy Grid Integration

    Broader source: Energy.gov [DOE]

    First presented to the Kansas State Legislature in 2008, these slides present 10 questions and answers regarding basic wind power issues including technology, transmission, and integration.

  9. Coupling Electric Vehicles and Power Grid through Charging-In-Motion and Connected Vehicle Technology

    SciTech Connect (OSTI)

    Li, Jan-Mou; Jones, Perry T; Onar, Omer C; Starke, Michael R

    2014-01-01

    A traffic-assignment-based framework is proposed to model the coupling of transportation network and power grid for analyzing impacts of energy demand from electric vehicles on the operation of power distribution. Although the reverse can be investigated with the proposed framework as well, electricity flowing from a power grid to electric vehicles is the focus of this paper. Major variables in transportation network (including link flows) and power grid (including electricity transmitted) are introduced for the coupling. Roles of charging-in-motion technology and connected vehicle technology have been identified in the framework of supernetwork. A linkage (i.e. individual energy demand) between the two networks is defined to construct the supernetwork. To determine equilibrium of the supernetwork can also answer how many drivers are going to use the charging-in-motion services, in which locations, and at what time frame. An optimal operation plan of power distribution will be decided along the determination simultaneously by which we have a picture about what level of power demand from the grid is expected in locations during an analyzed period. Caveat of the framework and possible applications have also been discussed.

  10. Optimization Strategies for the Vulnerability Analysis of the Electric Power Grid

    SciTech Connect (OSTI)

    Pinar, A.; Meza, J.; Donde, V.; Lesieutre, B.

    2007-11-13

    Identifying small groups of lines, whose removal would cause a severe blackout, is critical for the secure operation of the electric power grid. We show how power grid vulnerability analysis can be studied as a mixed integer nonlinear programming (MINLP) problem. Our analysis reveals a special structure in the formulation that can be exploited to avoid nonlinearity and approximate the original problem as a pure combinatorial problem. The key new observation behind our analysis is the correspondence between the Jacobian matrix (a representation of the feasibility boundary of the equations that describe the flow of power in the network) and the Laplacian matrix in spectral graph theory (a representation of the graph of the power grid). The reduced combinatorial problem is known as the network inhibition problem, for which we present a mixed integer linear programming formulation. Our experiments on benchmark power grids show that the reduced combinatorial model provides an accurate approximation, to enable vulnerability analyses of real-sized problems with more than 10,000 power lines.

  11. Optimization strategies for the vulnerability analysis of the electric power grid.

    SciTech Connect (OSTI)

    Meza, Juan C.; Pinar, Ali; Lesieutre, Bernard; Donde, Vaibhav

    2009-03-01

    Identifying small groups of lines, whose removal would cause a severe blackout, is critical for the secure operation of the electric power grid. We show how power grid vulnerability analysis can be studied as a mixed integer nonlinear programming (minlp) problem. Our analysis reveals a special structure in the formulation that can be exploited to avoid nonlinearity and approximate the original problem as a pure combinatorial problem. The key new observation behind our analysis is the correspondence between the Jacobian matrix (a representation of the feasibility boundary of the equations that describe the flow of power in the network) and the Laplacian matrix in spectral graph theory (a representation of the graph of the power grid). The reduced combinatorial problem is known as the network inhibition problem, for which we present a mixed integer linear programming formulation. Our experiments on benchmark power grids show that the reduced combinatorial model provides an accurate approximation, to enable vulnerability analyses of real-sized problems with more than 10,000 power lines.

  12. Empirical Analysis of the Variability of Wind Generation in India: Implications for Grid Integration

    E-Print Network [OSTI]

    Phadke, Amol

    2014-01-01

    and V. Neimane. 2005. 4000 MW Wind Power in Sweden-Impact onand Michael Milligan. 2009. “Wind Energy and Power SystemOperations: A Review of Wind Integration Studies to Date. ”

  13. Effect of the fast nuclear electromagnetic pulse on the electric power grid nationwide: A different view

    SciTech Connect (OSTI)

    Rabinowitz, M.

    1987-01-01

    This paper primarily considers the potential effects of a single high-altitude nuclear burst on the US power grid. A comparison is made between electromagnetic pulse(EMP) and natural phenomena such as lightning. This paper concludes that EMP is no more harmful to the power grid than its counterparts in nature. An upper limit of the electric field of the very fast, high-amplitude EMP is derived from first principles. The resulting values are significantly lower than the commonly presented values. Additional calculations show that the ionization produced by a nuclear burst severely attenuates the EMP. 21 refs., 2 figs., 6 tabs.

  14. Statistical Analysis of Abnormal Electric Power Grid Behavior

    SciTech Connect (OSTI)

    Ferryman, Thomas A.; Amidan, Brett G.

    2010-10-30

    Pacific Northwest National Laboratory is developing a technique to analyze Phasor Measurement Unit data to identify typical patterns, atypical events and precursors to a blackout or other undesirable event. The approach combines a data-driven multivariate analysis with an engineering-model approach. The method identifies atypical events, provides a plane English description of the event, and the capability to use drill-down graphics for detailed investigations. The tool can be applied to the entire grid, individual organizations (e.g. TVA, BPA), or specific substations (e.g., TVA_CUMB). The tool is envisioned for (1) event investigations, (2) overnight processing to generate a Morning Report that characterizes the previous days activity with respect to previous activity over the previous 10-30 days, and (3) potentially near-real-time operation to support the grid operators. This paper presents the current status of the tool and illustrations of its application to real world PMU data collected in three 10-day periods in 2007.

  15. PNNL Data-Intensive Computing for a Smarter Energy Grid

    ScienceCinema (OSTI)

    Carol Imhoff; Zhenyu (Henry) Huang; Daniel Chavarria

    2012-12-31

    The Middleware for Data-Intensive Computing (MeDICi) Integration Framework, an integrated platform to solve data analysis and processing needs, supports PNNL research on the U.S. electric power grid. MeDICi is enabling development of visualizations of grid operations and vulnerabilities, with goal of near real-time analysis to aid operators in preventing and mitigating grid failures.

  16. NREL: Distributed Grid Integration - Energy System Basics Video Series

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on771/6/14 Contact:NewsWebmaster PleaseSpring 2014 /Webmaster

  17. NREL: Transmission Grid Integration - Issues Affecting Renewable Energy

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

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

  18. NREL: Transmission Grid Integration - NREL Study Indicates Economic

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

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

  19. NREL: Transmission Grid Integration - Transmission Planning and Analysis

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

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

  20. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS (TO APPEAR) 1 Robust Smart-Grid Powered

    E-Print Network [OSTI]

    Giannakis, Georgios

    , Fellow, IEEE, and Shuyan Hu Abstract--A framework is introduced to integrate renewable energy sources to minimize the worst-case energy cost subject to the worst- case user QoS guarantees for the CoMP downlink Terms--Smart grid, renewable energy, downlink beam- forming, CoMP systems, robust optimization

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

    E-Print Network [OSTI]

    Steel, Katherine Deaton

    2008-01-01

    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 ...

  2. California-Wyoming Grid Integration Study: Phase 1 -- Economic Analysis

    SciTech Connect (OSTI)

    Corbus, D.; Hurlbut, D.; Schwabe, P.; Ibanez, E.; Milligan, M.; Brinkman, G.; Paduru, A.; Diakov, V.; Hand, M.

    2014-03-01

    This study presents a comparative analysis of two different renewable energy options for the California energy market between 2017 and 2020: 12,000 GWh per year from new California in-state renewable energy resources; and 12,000 GWh per year from Wyoming wind delivered to the California marketplace. Either option would add to the California resources already existing or under construction, theoretically providing the last measure of power needed to meet (or to slightly exceed) the state's 33% renewable portfolio standard. Both options have discretely measurable differences in transmission costs, capital costs (due to the enabling of different generation portfolios), capacity values, and production costs. The purpose of this study is to compare and contrast the two different options to provide additional insight for future planning.

  3. Power Africa's Beyond the Grid Increasing Access through Small...

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

    the U.S. Government is formally launching an innovative framework under President Obama's Power Africa initiative to increase energy access for underserved populations across...

  4. Large Power Transformers and the U.S. Electric Grid

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

    Transmission Company North American Electrical Reliability Corporation Ontario Power Generation Scott, Daniel U.S. Department of Commerce U.S. Department of Homeland Security U.S....

  5. Introduction Literature Review Integrated Electric Power Supply Chains Empirical Examples Conclusions An Integrated Electric Power Supply Chain and Fuel

    E-Print Network [OSTI]

    Nagurney, Anna

    Power Supply Chains Empirical Examples Conclusions A Simple Example of Transmission Congestion #12 Example of Transmission Congestion #12;Introduction Literature Review Integrated Electric Power Supply of Transmission Congestion #12;Introduction Literature Review Integrated Electric Power Supply Chains Empirical

  6. Risk-Limiting Dispatch for Integrating Renewable Power Ram Rajagopal

    E-Print Network [OSTI]

    into the power grid. The SO makes a sequence of decisions to balance the supply and load of electric power decision is based on the most recent available information, including demand, renewable power, weather technology, and renewable penetration. 1 Introduction States are setting ambitious goals for electricity from

  7. Exact and Efficient Algorithm to Discover Extreme Stochastic Events in Wind Generation over Transmission Power Grids

    E-Print Network [OSTI]

    Chertkov, Michael; Pan, Feng; Baldick, Ross

    2011-01-01

    In this manuscript we continue the thread of [M. Chertkov, F. Pan, M. Stepanov, Predicting Failures in Power Grids: The Case of Static Overloads, IEEE Smart Grid 2011] and suggest a new algorithm discovering most probable extreme stochastic events in static power grids associated with intermittent generation of wind turbines. The algorithm becomes EXACT and EFFICIENT (polynomial) in the case of the proportional (or other low parametric) control of standard generation, and log-concave probability distribution of the renewable generation, assumed known from the wind forecast. We illustrate the algorithm's ability to discover problematic extreme events on the example of the IEEE RTS-96 model of transmission with additions of 10%, 20% and 30% of renewable generation. We observe that the probability of failure may grow but it may also decrease with increase in renewable penetration, if the latter is sufficiently diversified and distributed.

  8. Energy Storage & Power Electronics 2008 Peer Review - Energy...

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

    Systems Security Publications Library Energy Storage Power Electronics Advanced Modeling Grid Research Transmission Reliability Renewable Energy Integration Small Business...

  9. ESIF Plugs Utility-Scale Hardware into Simulated Grids to Assess Integration Effects (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-04-01

    At NREL's Energy Systems Integration Facility (ESIF), integrated, megawatt-scale power hardware-in-the-loop (PHIL) capability allows researchers and manufacturers to test new energy technologies at full power in real-time simulations - safely evaluating component and system performance and reliability before going to market.

  10. Impact of On-chip Inductance on Power Distribution Network Design for Nanometer Scale Integrated Circuits

    E-Print Network [OSTI]

    - strate the importance of considering on-chip power grid induc- tance, and how its impact scales) are expected to adversely impact the chip's power supply grid design, this work demonstrates that a power grid. The parasitic elements in the wires from off-chip power supply sources to the terminals of each transistor cause

  11. Preprint for Space Weather Journal (2014) Assessing the impact of space weather on the electric power grid

    E-Print Network [OSTI]

    Schrijver, Karel

    2014-01-01

    Preprint for Space Weather Journal (2014) Assessing the impact of space weather on the electric power grid based on insurance claims for industrial electrical equipment C. J. Schrijver1 , R. Dobbins2 disturbances in the electric power grid. Here, we perform a statistical analysis of 11,242 insurance claims

  12. National Power Grid Simulator Workshop Chartered in 1946 as the nation's first national laboratory, Argonne enters

    E-Print Network [OSTI]

    Kemner, Ken

    (including the verification and validation of newly developed models) is essential, and goes hand in hand#12;National Power Grid Simulator Workshop b #12;1 Chartered in 1946 as the nation's first national are essential to maintain a competitive edge. This is particularly true for the complex transportation system

  13. Parallel domain decomposition for simulation of large-scale power grids

    E-Print Network [OSTI]

    Mohanram, Kartik

    of large-scale linear circuits such as power grids. DD techniques that use non-overlapping and overlap that with the proposed parallel DD framework, existing linear circuit simulators can be extended to handle large- scale can be solved independently in parallel using standard techniques for linear system analysis

  14. Experimental Evaluation of Electric Power Grid Visualization Tools in the EIOC

    SciTech Connect (OSTI)

    Greitzer, Frank L.; Dauenhauer, Peter M.; Wierks, Tamara G.; Podmore, Robin; Dalton, Angela C.

    2009-12-01

    The present study follows an initial human factors evaluation of four electric power grid visualization tools and reports on an empirical evaluation of two of the four tools: Graphical Contingency Analysis, and Phasor State Estimator. The evaluation was conducted within specific experimental studies designed to measure the impact on decision making performance.

  15. An Evaluation of Economy-based Resource Trading and Scheduling on Computational Power Grids for

    E-Print Network [OSTI]

    Melbourne, University of

    1 An Evaluation of Economy-based Resource Trading and Scheduling on Computational Power Grids, Computational Economy, Resource Trading, Nimrod/G Resource Broker, Scheduling, and Parameter Sweep Applications, resource allocation or co-allocation, online control, scalability, transparency, and "economy

  16. CORC Report TR-2005-07 Using mixed-integer programming to solve power grid blackout

    E-Print Network [OSTI]

    Bienstock, Daniel

    CORC Report TR-2005-07 Using mixed-integer programming to solve power grid blackout problems Daniel the blackouts of the U.S. Northeast and Eastern Canada [17] of August 2003, and the September 2003 blackout that affected Italy [19]. In addition, Brazil experienced large blackouts in 1999 (see [15]). These blackouts

  17. Utility Grid-Connected Distributed Power Systems National Solar Energy Conference

    E-Print Network [OSTI]

    capacity and energy benefits. The Solar Buildings Program provides design assistance and incentivesUtility Grid-Connected Distributed Power Systems National Solar Energy Conference ASES Solar 96-effective in these applications by about the year 2000. In the first three years, SMUD has installed over 340 residential

  18. Designing AC Power Grids using Integer Linear Programming

    E-Print Network [OSTI]

    2011-02-18

    view of recent developments in integer linear programming, we revisit a less known .... optimal solution of the DC model was the minimum cost circuit of the network. ... Andersson, G.: Modelling and Analysis of Electric Power Systems (

  19. Volatility of Power Grids Under Real-Time Pricing

    E-Print Network [OSTI]

    Roozbehani, Mardavij

    The paper proposes a framework for modeling and analysis of the dynamics of supply, demand, and clearing prices in power systems with real-time retail pricing and information asymmetry. Characterized by passing on the ...

  20. Strategies and Decision Support Systems for Integrating Variable Energy Resources in Control Centers for Reliable Grid Operations

    SciTech Connect (OSTI)

    Jones, Lawrence E.

    2011-11-01

    This report provides findings from the field regarding the best ways in which to guide operational strategies, business processes and control room tools to support the integration of renewable energy into electrical grids.