http://www.rssboard.org/rss-specification 720 https://escholarship.org/uc/ciee_electricgrid/rss Recent eScholarship items from Electric Grid Tue, 15 Sep 2026 21:08:39 +0000 https://escholarship.org/uc/item/7j20759s As California seeks to meet its ambitious goals for carbon reduction and support of an electric grid with high levels of renewable energy supply, there is a growing need for large amounts of flexibility from the demand side. This report outlines a system architecture and technology infrastructure to enable dynamic pricing to be used to finely tune coordination between the grid and its customers. Taking a cue from the success of internet architecture, this system — Price-Based Grid Coordination — emphasizes simplicity and universality. It enables a wide variety of ways for prices and other signals to pass from the grid to individual flexible loads and other devices, including multiple possible locations for the intelligence that combines price signals with device functional needs. The report includes a reference data model to knit together information at the utility level, communication protocols, and customer devices, to be independent of any particular protocol. The report also... https://escholarship.org/uc/item/7j20759s Wed, 18 Jan 2023 00:00:00 +0000 Nordman, Bruce Piette, Mary Ann Khandekar, Aditya https://escholarship.org/uc/item/9wx6f2cq Appendix III to Final Project Report WECC Wind Generator Development https://escholarship.org/uc/item/9wx6f2cq Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/9t47p1xc Appendix V to Final Project Report WECC Wind Generator Development https://escholarship.org/uc/item/9t47p1xc Wed, 6 Oct 2021 00:00:00 +0000 Clarke, Christopher R Moriconi, Franco Singh, Amandeep Kamiab, Ardalan Neal, Russ Rodriguez, Alonso Rosa, Francisco De La Koshnick, Nick https://escholarship.org/uc/item/9rh8t7p4 This research produced a technology development roadmap for achieving an electric transmission infrastructure functionally capable of integrating the renewable generation capacity required to meet the RPS goals of California. https://escholarship.org/uc/item/9rh8t7p4 Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/9mh8t1bx An invited presentation for the International Colloquium on Environmentally Preferred Advanced Power Generation (ICEPAG) 2011, February 8-10, 2011, Costa Mesa, California https://escholarship.org/uc/item/9mh8t1bx Wed, 6 Oct 2021 00:00:00 +0000 Arghandeh, Reza https://escholarship.org/uc/item/9kj5f2tn Final Project Report prepared for CIEE and California Energy Commission https://escholarship.org/uc/item/9kj5f2tn Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/9hv9v36d Current Limiter Product Information https://escholarship.org/uc/item/9hv9v36d Wed, 6 Oct 2021 00:00:00 +0000 Kim, Janghoon Dobson, Ian https://escholarship.org/uc/item/99k3736h Presented paper – COMPENG 2010: Complexity in Engineering https://escholarship.org/uc/item/99k3736h Wed, 6 Oct 2021 00:00:00 +0000 Muljadi, Eduard Ellis, Abraham https://escholarship.org/uc/item/97v3n855 This paper presents an overview of challenges associated with intermittent and distributed electric generation relative to the goals for renewable integration in California, framed in terms of a coordination problem at multiple scales in both space and time. https://escholarship.org/uc/item/97v3n855 Wed, 6 Oct 2021 00:00:00 +0000 Parashar, Manu, Ph.D. Agarwal, Abhijeet Makarov, Yuri, Ph.D. Dobson, Ian, Ph.D. https://escholarship.org/uc/item/91s1x9rk Appendix C to Real Time System Operation 2006-2007 https://escholarship.org/uc/item/91s1x9rk Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/8wx1x1bf Presentation given October 19, 2012 as part of the i4Energy seminar series https://escholarship.org/uc/item/8wx1x1bf Wed, 6 Oct 2021 00:00:00 +0000 Parashar, Manu, Ph.D. Agarwal, Abhijeet Makarov, Yuri, Ph.D. Dobson, Ian, Ph.D. https://escholarship.org/uc/item/8w25n47x Report prepared for California Energy Commission https://escholarship.org/uc/item/8w25n47x Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/8kd7m87r Final Project Report prepared for CIEE and California Energy Commission https://escholarship.org/uc/item/8kd7m87r Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/8cs2f9r9 Successfully integrating renewable resources into the electric grid at penetration levels to meet a 33 percent Renewables Portfolio Standard for California presents diverse technical and organizational challenges. This report characterizes these challenges by coordinating problems in time and space, balancing electric power on a range of scales from microseconds to decades and from individual homes to hundreds of miles. Crucial research needs were identified related to grid operation, standards and procedures, system design and analysis, and incentives, and public engagement in each scale of analysis. Performing this coordination on more refined scales of time and space independent of any particular technology, is defined as a “smart grid.” “Smart” coordination of the grid should mitigate technical difficulties associated with intermittent and distributed generation, support grid stability and reliability, and maximize benefits to California ratepayers by using the most economic... https://escholarship.org/uc/item/8cs2f9r9 Wed, 6 Oct 2021 00:00:00 +0000 Zynergy Power https://escholarship.org/uc/item/8b98128b The aging of installed underground distribution cables is a looming issue facing electric utilities in California and throughout the U.S. A variety of technologies and tests are currently available to evaluate underground cables, but there is often little correlation between the diagnostic results and the actual deterioration. This project will evaluate existing diagnostic approaches used to detect or predict incipient failure and determine whether new innovative technologies can be utilized to improve diagnostic accuracy while reducing the costs. https://escholarship.org/uc/item/8b98128b Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin Cibulka, Lloyd Meier, Alexandra von https://escholarship.org/uc/item/7v80j3q4 Develop principles, algorithms, market integration rules, functional design and technical specifications for a wide-area storage and intermittent energy exchange management systems. This is to mitigate intermittent loading and fast ramps from increasing renewable generation. Evaluate large energy storage (sodium sulfur battery) options for the California IO ancillary service market. https://escholarship.org/uc/item/7v80j3q4 Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/7k28q81h Appendix F to Real Time Grid Reliability Management 2005 Report https://escholarship.org/uc/item/7k28q81h Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/7jv3c8f5 Appendix B to Real Time Grid Reliability Management 200 https://escholarship.org/uc/item/7jv3c8f5 Wed, 6 Oct 2021 00:00:00 +0000 Miller, Larry Cibulka, Lloyd Brown, Merwin Meier, Alexandra von https://escholarship.org/uc/item/7jp8134g Report prepared for CIEE and California Energy Commission https://escholarship.org/uc/item/7jp8134g Wed, 6 Oct 2021 00:00:00 +0000 Lesieutre, Bernard C. https://escholarship.org/uc/item/7bb6528n Report prepared for CIEE and California Energy Commission https://escholarship.org/uc/item/7bb6528n Wed, 6 Oct 2021 00:00:00 +0000 Kondragunta, Lu Parashar, Manu Tripathi, Nand https://escholarship.org/uc/item/77x2b70k Simulations of a resonance event were performed based on actual field data of a commercially operating distribution feeder and a superconducting saturable core fault current limiter. The analysis was conducted from both the system's and the fault current limiter's perspectives. https://escholarship.org/uc/item/77x2b70k Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/73z7b73w Phase I will develop, and test in a small-scale network model, the science and conceptual framework and advanced mathematical techniques needed for the complexity of multiple component and system failures in a transmission system, e.g., the "N-20"N equivalent analysis. Results might include identification of critical corridors, event frequency and probability, and superior operational response strategies. Phase II will apply Phase I methodologies to realistic network models to test their practicality. https://escholarship.org/uc/item/73z7b73w Wed, 6 Oct 2021 00:00:00 +0000 Novosel, Damir https://escholarship.org/uc/item/72j5p6fw Final Project Report prepared for CIEE and California Energy Commission https://escholarship.org/uc/item/72j5p6fw Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/71q0j5dm Widespread deployment of EcoBlocks has the potential to transform today's electricity system into one that is more resilient, flexible, efficient and sustainable. In this vision, the system will consist of self- su�cient, renewable-powered, block-scale entities that can deliberately adjust their net power exchange and can optimize performance, maintain stability, support each other, or disconnect entirely from the grid as needed. This report is intended as an independent analysis of the potential relationships, both constructive and adverse, between EcoBlocks and the grid. https://escholarship.org/uc/item/71q0j5dm Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin Miller, Larry Meier, Alexandra von Cibulka, Lloyd Hwang, Lorraine https://escholarship.org/uc/item/6z50038p Validate existing WECC wind turbine models and develop methods to use these individual models to develop an aggregated model of an entire wind farm increasing the reliable operation of the California electric delivery system. https://escholarship.org/uc/item/6z50038p Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/6v17q23f This research will determine the current status of energy storage technology and identify related issues, research gaps, barriers, and opportunities as well as specific targets or milestones and specific actions necessary for development and deployment of energy storage technologies in California. The ultimate goals are to establish a 2020 Energy Storage Vision for California, to develop scenarios for how energy storage may be applied throughout California’s electric power system, and to estimate the costs and benefits of such a vision as compared to a scenario without deployment of energy storage Transmission Load Modeling Research. https://escholarship.org/uc/item/6v17q23f Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/6qr3506h Developed and conducted a demonstration of two real-time software tools to provide a grid operator a display of information and alarms from a network of phasor monitoring units and analysis of voltage security. Performed a scoping study that examined and prioritized options for data collection to improve the load and generator models used by CAISO and its control member utilities. https://escholarship.org/uc/item/6qr3506h Wed, 6 Oct 2021 00:00:00 +0000 Muljadi, Eduard Ellis, Abraham https://escholarship.org/uc/item/6px9q5gn Appendix B to Real Time System Operation 2006-2007 https://escholarship.org/uc/item/6px9q5gn Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/6jz5q8wr Fault Current Limiter Data Sheet https://escholarship.org/uc/item/6jz5q8wr Wed, 6 Oct 2021 00:00:00 +0000 Zynergy Power https://escholarship.org/uc/item/6hq9f26b Implemented monitoring technologies to produce real-time ratings (RTR) of transmission lines and evaluated the use of RTR to mitigate both the power transfer into a large multi-utility transmission area and the voltage constraints within a large area. https://escholarship.org/uc/item/6hq9f26b Wed, 6 Oct 2021 00:00:00 +0000 Newman, D. E. Carreras, B. A. Kirchner, M. Dobson, I. https://escholarship.org/uc/item/6f023668 Develop and apply advanced signal processing algorithms on phasor measurement unit (PMU) data for oscillation detection and analysis. It will include testing and validation procedures based on simulation data and field measurement data. A real-time prototype tool is to be developed for monitoring and analyzing power grid oscillations. https://escholarship.org/uc/item/6f023668 Wed, 6 Oct 2021 00:00:00 +0000 Meier, Alexandra von https://escholarship.org/uc/item/6d61f1k9 Develop test protocols to simulate appropriate earthquake conditions for transformer bushing assembly. Conduct laboratory testing for protocols, evaluate testing procedures, and develop recommendations for a rational qualification procedure to include in IEEE standards for manufacturer certification. https://escholarship.org/uc/item/6d61f1k9 Wed, 6 Oct 2021 00:00:00 +0000 Makarov, Yuri V Etingov, Pavel V Samaan, Nadar A Ma, Jian, PNNL Loutan, Clyde https://escholarship.org/uc/item/6d002396 Developed new reliability real-time management tools and functional specifications for a commercial vendor to create production-quality versions of these tools for operations. Applications included the use of wide-area, real-time phasor measurements to display phase angle change and mode damping levels for low-frequency grid oscillations, and a voltage security analysis tool. Final Project Report without Appendices https://escholarship.org/uc/item/6d002396 Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/6903h1qn Develop and apply advanced signal processing algorithms on phasor measurement unit (PMU) data for oscillation detection and analysis. It will include testing and validation procedures based on simulation data and field measurement data. A real-time prototype tool is to be developed for monitoring and analyzing power grid oscillations. https://escholarship.org/uc/item/6903h1qn Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin Cole, Jim Cibulka, Lloyd Miller, Larry https://escholarship.org/uc/item/60f7v257 Appendix D to Real Time System Operation 2006-2007 https://escholarship.org/uc/item/60f7v257 Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/5xq234kd Develop specifications, algorithms, computer codes, and graphical interfaces for two grid operator online analysis and visualization tools to monitor wind generation power ramping requirements. Predict unexpected transmission system impacts of intermittent generation on congested paths, voltage levels, and reactive power margins. Provide decision support for operator problem mitigation. https://escholarship.org/uc/item/5xq234kd Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin Cibulka, Lloyd Miller, Larry Meier, Alexandra https://escholarship.org/uc/item/5rg792nq As California progresses towards its goal of 33 percent renewable electricity generation, the potential for energy storage to help integrate renewable resources and maintain a reliable and efficient electric grid takes on great significance. This report presents a strategic analysis of energy storage for California by 2020. The report assesses current energy storage technologies, discusses the diverse policies affecting deployment in California, and outlines critical technology gaps, future research needs, and policy reforms. It also provides a reference framework for the Energy Commission, CPUC, and other regulatory agencies to use as they develop solutions for how commercially ready energy storage technologies can be cost-effectively applied in California to reduce costs to ratepayers, reduce emissions from fossil fuel generation, and enable and accelerate the implementation of more renewable generation and its integration in California’s electricity system. https://escholarship.org/uc/item/5rg792nq Wed, 6 Oct 2021 00:00:00 +0000 Abele, Andris R Elkind, Ethan Intrator, Jessica Washom, Byron https://escholarship.org/uc/item/5h49r035 Documented case histories for addressing the cost allocation problem and developed new methods and approaches that will advance the planning tools for making these investment decisions and providing better information for stakeholder involvement in decisions, including sharing in the cost of transmission projects. https://escholarship.org/uc/item/5h49r035 Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/5fg6109b Develop real-time oscillation modal analysis application of phasor measurements based on Modal Analysis for Grid Operation procedure. Enhance modal control of the Western Interconnection by operator controllable variables. Demonstrate a MANGO application for the Western Interconnection. Implement MANGO for use in California ISO and utilities' control rooms. https://escholarship.org/uc/item/5fg6109b Wed, 6 Oct 2021 00:00:00 +0000 Miller, Larry Cibulka, Lloyd Brown, Merwin Meier, Alexandra von Arghandeh, Reza https://escholarship.org/uc/item/5bk6h3pq Final Project Report prepared for CIEE and California Energy Commission https://escholarship.org/uc/item/5bk6h3pq Wed, 6 Oct 2021 00:00:00 +0000 Meier, Alexandra von https://escholarship.org/uc/item/59t3379f Presented Paper - 48th Annual Allerton Conference on Communication, Control and Computing https://escholarship.org/uc/item/59t3379f Wed, 6 Oct 2021 00:00:00 +0000 Eto, Joe Budhraja, Vikram Ballance, John Dyer, Jim Mobasher, Fred https://escholarship.org/uc/item/57m8m9pc Appendix A to Real Time System Operation 2006-2007 https://escholarship.org/uc/item/57m8m9pc Wed, 6 Oct 2021 00:00:00 +0000 Eto, Joe Parashar, Manu Leiseutre, Bernard Lewis, Nancy Jo https://escholarship.org/uc/item/54j8x52w Extreme Events Phase 2 https://escholarship.org/uc/item/54j8x52w Wed, 6 Oct 2021 00:00:00 +0000 Morgan, Mark Dobson, Ian Adapa, Ram Carreras, Benjamin Dawar, Vikas Kumbale, Murali Hardiman, Rod Hwang, Lorraine Leiseutre, Bernard Kim, Janghoon Makarov, Yuri Samaan, Nader Newman, David Varadan, Siri https://escholarship.org/uc/item/54d8s799 Phasor-based interdependencies of multiple harmonic sources, especially Distributed Energy Resources, on distribution networks are analyzed in this paper. A new index, Phasor Harmonic Index (IPH), is proposed by the authors. IPH considers both harmonic source magnitude and phase angle for different harmonic orders. Other commonly used harmonic indices are based solely on magnitude of waveforms. A very detailed model of a distribution network is used in the harmonic assessment. With the help of the detailed distribution network model, the phase couplings and the phase balancing impacts on harmonic propagation between three phases are investigated. Moreover, effects of harmonic source phase angle deviations are analyzed at both the customer side and the substation side. This paper investigates the importance of phase angles in harmonic assessment and how distribution network characteristics can be analyzed appropriately with phasor-based harmonic studies. In addition to device level... https://escholarship.org/uc/item/54d8s799 Wed, 6 Oct 2021 00:00:00 +0000 Muljadi, Eduard Ellis, Abraham https://escholarship.org/uc/item/53v4k2xh Presentation for the AEE SoCal Annual Conference 2011, Energy Security: Keeping the Power On https://escholarship.org/uc/item/53v4k2xh Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/51b6n7db Large amounts of distributed generation (DG), especially solar, and electric vehicles may cause technical problems related to power quality, safety and reliability on electric distribution circuits. These impacts are not yet well understood. Early evidence suggests that significant infrastructure upgrades and operational changes in utility distribution systems may be required as DG penetration levels reach a critical threshold. New empirical information gathered from the field is needed to better define these requirements and the potential need for new technology developments. Data from distribution circuits must be collected and analyzed at higher resolution and with greater specificity so that the effects of distributed resources can be better understood and mitigated if necessary. https://escholarship.org/uc/item/51b6n7db Wed, 6 Oct 2021 00:00:00 +0000 Meier, Alexandra von McEachern, Alex https://escholarship.org/uc/item/4z8238p5 To investigate models, sensing systems and other means for detecting, in advance of failure, the degradation of the concentric neutral conductors of underground power distribution cables. https://escholarship.org/uc/item/4z8238p5 Wed, 6 Oct 2021 00:00:00 +0000 Parashar, Manu Zhou, Wei Trudnowski, Dan, Ph.D. Makarov, Yuri, Ph.D. Dobson, Ian, Ph.D. https://escholarship.org/uc/item/4z76h1cn Oscillation Detection and Analysis https://escholarship.org/uc/item/4z76h1cn Wed, 6 Oct 2021 00:00:00 +0000 Zhou, Ning Huang, Zhenyu Tuffner, Francis Jin, Shuanshaung Lin, Jenglung Hauer, Matthew https://escholarship.org/uc/item/4pj7f57p Application of Mode Analysis for Grid Operations (MANGO) on the Western Interconnection https://escholarship.org/uc/item/4pj7f57p Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/4j32d9df This report articulates and justifies the preliminary selection of diagnostic applications for data from micro-synchrophasors (µPMUs) in electric power distribution systems that will be further studied and developed within the scope of the three-year ARPA-e award titled Micro-synchrophasors for Distribution Systems. https://escholarship.org/uc/item/4j32d9df Wed, 6 Oct 2021 00:00:00 +0000 Leiseutre, Bernard Bravo, Richard Yinger, Robert Chassin, Dave Juang, Henry Lu, Ning Hiskens, Ian Vendataramanan, Giri https://escholarship.org/uc/item/4hz867zx New Electric Grid Technologies for Renewable Generation Deployment https://escholarship.org/uc/item/4hz867zx Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin, Ph.D. https://escholarship.org/uc/item/4hk3p15w The smart grid revolution is creating a paradigm shift in distribution networks marked by intermittency and uncertainty in power supply and demand. These developments dramatically increase the need for tools to monitor, manage and protect distribution networks, fast, reliably and accurately. Monitoring tools such as phasor measurement units (PMUs) that have had success in the transmission system can be adapted for a variety of distribution applications. This presentation addresses opportunities and challenges of developing and implementing advanced monitoring techniques to support distribution planning and operations, specifically exploring the use of precise and time synchronized PMU data with monitoring, control and protection systems in distribution networks. https://escholarship.org/uc/item/4hk3p15w Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/4h85n2vg Evaluates the performance, cost effectiveness and reliability of each two different types of leading prototype fault current controllers and will consider the advantages of passive versus active devices. Phase II will field-test a second-generation high-temperature superconducting fault current controller technology. The outcomes will provide guidance for future development of higher voltage fault current controllers. https://escholarship.org/uc/item/4h85n2vg Wed, 6 Oct 2021 00:00:00 +0000 Meier, Alexandra von https://escholarship.org/uc/item/4fp9c697 In recent years, extreme weather events have severely affected the performance of the electric grid. Very large-scale events (VLSE) with potentially catastrophic impacts on the grid pose more than an inconvenience in today's electricity-driven lifestyle, and the frequency and severity of such events may continue to increase as a consequence of global climate change. This article summarizes the state of the art in leveraging distributed resources to improve resilience of the electric grid. It also highlights the technical questions that need to be addressed through additional research and development if the value of distributed resources is to be maximized. Published in "Power and Energy Magazine", Volume: 12, Issue: 5 https://escholarship.org/uc/item/4fp9c697 Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/47j0n7mh This white paper describes simulation and analysis tools, the current state of the art of simulation, and the research gaps for effective management of renewable resources and electric vehicles in distribution systems as California strives to achieve 33% renewable penetration by 2020 in accordance with the state’s Renewable Portfolio Standard (RPS). This white paper is intended to provide information that will help target future solicitations for research toward applications that will help California better reach its renewable energy goals. https://escholarship.org/uc/item/47j0n7mh Wed, 6 Oct 2021 00:00:00 +0000 Dyer, Jim https://escholarship.org/uc/item/42f008vm Final Project Report prepared for CIEE and California Energy Commissio https://escholarship.org/uc/item/42f008vm Wed, 6 Oct 2021 00:00:00 +0000 Cibulka, Lloyd Brown, Merwin Miller, Larry Meier, Alexandra von https://escholarship.org/uc/item/3zp693d9 Report prepared for CIEE and California Energy Commission https://escholarship.org/uc/item/3zp693d9 Wed, 6 Oct 2021 00:00:00 +0000 Parashar, Manu, Ph.D. Agarwal, Abhijeet Makarov, Yuri, Ph.D. Dobson, Ian, Ph.D. https://escholarship.org/uc/item/3q9849pc Appendix C to Real Time Grid Reliability Management 2005 Report https://escholarship.org/uc/item/3q9849pc Wed, 6 Oct 2021 00:00:00 +0000 Miller, Larry Cibulka, Lloyd Brown, Merwin Meier, Alexandra von https://escholarship.org/uc/item/3pr6506b Identifies future research activities related to equipment and devices which could facilitate the integration of renewable energy resources, increase the efficiency or capacity of the transmission infrastructure, and/or reduce emission of greenhouse gases that are directly associated with the transmission infrastructure. https://escholarship.org/uc/item/3pr6506b Wed, 6 Oct 2021 00:00:00 +0000 Meier, Alexandra von Green, Jared Tyran, Barbara DeMartini, Paul https://escholarship.org/uc/item/3kd86813 Wide-Area Energy Storage and Management System (WAESMS) Project https://escholarship.org/uc/item/3kd86813 Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/3hc30524 Presented Paper – 44th Hawaii International Conference on System Sciences https://escholarship.org/uc/item/3hc30524 Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/3h64b5b6 White Paper prepared for CIEE and California Energy Commission https://escholarship.org/uc/item/3h64b5b6 Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/3gq8k921 High-power short-circuit test results and numerical simulations of a 15kV-24MVA distribution-class High Temperature Superconductor (HTS) Fault Current Limiters (FCL) are presented and compared in this paper. https://escholarship.org/uc/item/3gq8k921 Wed, 6 Oct 2021 00:00:00 +0000 Hwang, Lorraine Brown, Merwin https://escholarship.org/uc/item/38w5f5hr Wind Power Plant Data Collection https://escholarship.org/uc/item/38w5f5hr Wed, 6 Oct 2021 00:00:00 +0000 Muljadi, Eduard Ellis, Abraham https://escholarship.org/uc/item/38b6k2sr This white paper describes the circumstances in California around the turn of the 21st century that led the California Energy Commission (CEC) to direct additional Public Interest Energy Research funds to address critical electric grid issues, especially those arising from integrating high penetrations of variable renewable generation with the electric grid. It contains an assessment of the beneficial science and technology advances of the resultant portfolio of electric grid research projects administered under the direction of the CEC by a competitively selected contractor, the University of California’s California Institute for Energy and the Environment, from 2003-2014. https://escholarship.org/uc/item/38b6k2sr Wed, 6 Oct 2021 00:00:00 +0000 Meier, Alexandra von https://escholarship.org/uc/item/32w0b604 California is striving to achieve 33% renewable penetration by 2020 in accordance with the state’s Renewable Portfolio Standard (RPS). The behavior of renewable resources and electric vehicles in distribution systems is creating constraints on the penetration of these resources into the distribution system. One such constraint is the ability of present-­‐‑day voltage management methodologies to maintain proper distribution system voltage profiles in the face of higher penetrations of PV and electric vehicle technologies. This white paper describes the research gaps that have been identified in current Volt/VAR Optimization and Control (VVOC) technologies, the emerging technologies which are becoming available for use in VVOC, and the research gaps which exist and must be overcome in order to realize the full promise of these emerging technologies. https://escholarship.org/uc/item/32w0b604 Wed, 6 Oct 2021 00:00:00 +0000 Muljadi, Eduard Ellis, Abraham https://escholarship.org/uc/item/31g5z1hg UK registered and London listed energy technology company employing superconductor technologies. Comprising three operating subsidiaries located in Germany, USA, and Australia, Zenergy provides products and services for renewable power, electric power reliability and security, and energy efficiency. https://escholarship.org/uc/item/31g5z1hg Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/30v9k5tt This project developed and field-tested two methods of Adaptive Protection systems utilizing synchrophasor data. One method detects conditions of system stress that can lead to unintended relay operation, and initiates a supervisory signal to modify relay response in real time to avoid false trips. The second method detects the possibility of false trips of impedance relays as stable system swings “encroach” on the relays’ impedance zones, and produces an early warning so that relay engineers can re-evaluate relay settings. In addition, real-time synchrophasor data produced by this project was used to develop advanced visualization techniques for display of synchrophasor data to utility operators and engineers. https://escholarship.org/uc/item/30v9k5tt Wed, 6 Oct 2021 00:00:00 +0000 Meier, Alexandra von Arghandeh, Reza https://escholarship.org/uc/item/30p550xv Appendix IV to Final Project Report WECC Wind Generator Development https://escholarship.org/uc/item/30p550xv Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/2v1909wv White Paper prepared for CIEE and California Energy Commission https://escholarship.org/uc/item/2v1909wv Wed, 6 Oct 2021 00:00:00 +0000 Parashar, Manu, Ph.D. Agarwal, Abhijeet https://escholarship.org/uc/item/2m16714j Appendix E to Real Time System Operation 2006-2007 https://escholarship.org/uc/item/2m16714j Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/2kx7v247 Appendix G to Real Time Grid Reliability Management 2005 Report https://escholarship.org/uc/item/2kx7v247 Wed, 6 Oct 2021 00:00:00 +0000 Parashar, Manu Dyer, Jim https://escholarship.org/uc/item/2dc2f9f0 This white paper describes simulation models, the current state of the art of these models, and the research gaps for effective management of renewable resources and electric vehicles in distribution systems as California strives to achieve 33% renewable penetration by 2020 in accordance with the state’s Renewable Portfolio Standard (RPS). This white paper is intended to provide information that will help target future solicitations for research toward applications that will help California better reach its renewable energy goals. https://escholarship.org/uc/item/2dc2f9f0 Wed, 6 Oct 2021 00:00:00 +0000 Stuart, Bob https://escholarship.org/uc/item/29q10723 Developed new reliability real-time management tools and functional specifications for a commercial vendor to create production-quality versions of these tools for operations. Applications included the use of wide-area, real-time phasor measurements to display phase angle change and mode damping levels for low-frequency grid oscillations, and a voltage security analysis tool. Final Project Report without Appendices https://escholarship.org/uc/item/29q10723 Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/2481r14f Final Project Report prepared for CIEE and California Energy Commission https://escholarship.org/uc/item/2481r14f Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/2267w31c Chapter 34 in the textbook, "Renewable Energy Integration: Practical Management of Variability, Uncertainty and Flexibility" https://escholarship.org/uc/item/2267w31c Wed, 6 Oct 2021 00:00:00 +0000 Dobson, Ian Carreras, Benjamin A https://escholarship.org/uc/item/2025c7cg Final Project Report prepared for CIEE and California Energy Commission https://escholarship.org/uc/item/2025c7cg Wed, 6 Oct 2021 00:00:00 +0000 Parashar, Manu Dyer, Jim https://escholarship.org/uc/item/1pt5x93f For most of the 20th century, the electric grid had a relatively simple role: moving electricity from central power plants to the consumers. Its behavior was predictable, operation was largely deterministic, and an operator was in control. But with growing uncertainty, aging infrastructure and uncertainty in energy markets, we must begin to think about the future of the energy grid and restructuring to effectively rise to these challenges. https://escholarship.org/uc/item/1pt5x93f Wed, 6 Oct 2021 00:00:00 +0000 Eto, Joe Parashar, Manu Lewis, Nancy Jo https://escholarship.org/uc/item/1jt8529v Developed and applied a mathematical approach using probabilities to more accurately describe load and generation time dependence and forecasting uncertainties to be used to predict congestion in California. https://escholarship.org/uc/item/1jt8529v Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/19z9r8v8 Current Limiter Overview Description https://escholarship.org/uc/item/19z9r8v8 Wed, 6 Oct 2021 00:00:00 +0000 Eto, Joe Parashar, Manu Leiseutre, Bernard Lewis, Nancy Jo https://escholarship.org/uc/item/18r0f1f7 Determine breaking strengths and failure modes of substation insulators subjected to seismic stress. Develop new qualification procedures for revisions to IEEE Standard 693. Rigid porcelain and composite post insulators will be tested and analyzed. https://escholarship.org/uc/item/18r0f1f7 Wed, 6 Oct 2021 00:00:00 +0000 Lee, Stephen https://escholarship.org/uc/item/1499z4cw Appendix VI to Final Project Report WECC Wind Generator Development https://escholarship.org/uc/item/1499z4cw Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/0zf1t580 This research will determine the current status of energy storage technology and identify related issues, research gaps, barriers, and opportunities as well as specific targets or milestones and specific actions necessary for development and deployment of energy storage technologies in California. The ultimate goals are to establish a 2020 Energy Storage Vision for California, to develop scenarios for how energy storage may be applied throughout California’s electric power system, and to estimate the costs and benefits of such a vision as compared to a scenario without deployment of energy storage.Status: Completed 08/2011 https://escholarship.org/uc/item/0zf1t580 Wed, 6 Oct 2021 00:00:00 +0000 Seppa, Tapani Seppa, Timo Mohr, Robert Salehian, Afshin Faisal, Zaki https://escholarship.org/uc/item/0x79r392 Report prepared for the California Energy Commission. https://escholarship.org/uc/item/0x79r392 Wed, 6 Oct 2021 00:00:00 +0000 Dobson, Ian Kim, Janghoon Wierzbicki, Kevin R https://escholarship.org/uc/item/0vt4s5zd Appendix A to Real Time Grid Reliability Management Report 2005 https://escholarship.org/uc/item/0vt4s5zd Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/0t90g1dq Appendix E to Real Time Grid Reliability Management 2005 Report https://escholarship.org/uc/item/0t90g1dq Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/0qw407bg Presentation prepared for i – PCGRID Workshop – 2012, San Francisco, CA, March 28, 2012 https://escholarship.org/uc/item/0qw407bg Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/0nb0d684 Developed a "Forward-looking State Estimator", which with the capability to look ahead for the next 24 hours, predict whether the system will be encounter critical operating constraints, and enable the California ISO to simulate various import scenarios to best mitigate a predicted potential problem. https://escholarship.org/uc/item/0nb0d684 Wed, 6 Oct 2021 00:00:00 +0000 Arghandeh, Reza Onen, Ahmet Jung, Jaesung Broadwater, Robert P. https://escholarship.org/uc/item/0c9300d8 This white paper describes Volt/VAR Control and Optimization (VVOC), the various methods for achieving it, the devices used, and the current state of the art in light of the impact of increasing penetrations of renewable resources and electric vehicles in distribution systems as California strives to achieve 33% renewable penetration by 2020 in accordance with the state’s Renewable Portfolio Standard (RPS). This white paper is intended to provide information that will help target future solicitations for research toward applications that will help California better reach its renewable energy goals. https://escholarship.org/uc/item/0c9300d8 Wed, 6 Oct 2021 00:00:00 +0000 Moriconi, Franco Singh, Amandeep Rosa, Francisco De La Koshnick, Nick https://escholarship.org/uc/item/0bm6n3s9 Published paper – Risk Analysis Vol. 30 No 4 https://escholarship.org/uc/item/0bm6n3s9 Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/09s3h0t6 Final Project Report prepared for CIEE and California Energy Commission https://escholarship.org/uc/item/09s3h0t6 Wed, 6 Oct 2021 00:00:00 +0000 Zynergy Power https://escholarship.org/uc/item/04x3s4wb Transmission Probabilistic Congestion Forecasting https://escholarship.org/uc/item/04x3s4wb Wed, 6 Oct 2021 00:00:00 +0000 Lee, Stephen Min, Liang https://escholarship.org/uc/item/02g1930p PowerPoint presentation given at UCLA SG Thought Leadership Forum March 28, 2012 https://escholarship.org/uc/item/02g1930p Wed, 6 Oct 2021 00:00:00 +0000 Brown, Merwin https://escholarship.org/uc/item/02c6h0sm A presentation for the i4Energy Seminar Series for Spring 2011, February 4, 2011, UC Berkeley, Berkeley, California https://escholarship.org/uc/item/02c6h0sm Wed, 6 Oct 2021 00:00:00 +0000 Muljadi, Eduard Ellis, Abraham https://escholarship.org/uc/item/6fx62242 Developed new reliability real-time management tools and functional specifications for a commercial vendor to create production-quality versions of these tools for operations. Applications included the use of wide-area, real-time phasor measurements to display phase angle change and mode damping levels for low-frequency grid oscillations, and a voltage security analysis tool. https://escholarship.org/uc/item/6fx62242 Fri, 24 Sep 2021 00:00:00 +0000 Eto, Joseph Parashar, Manu Lewis, Nancy Jo https://escholarship.org/uc/item/11n0s5cb This project demonstrated that solar PV can be recruited to stabilize the grid, smooth out disturbances, manage power flows, and assist circuit switching operations. It developed a radically new, layered control framework for Distributed Energy Resources (DER) to act in response to real-time, measured conditions on their local distribution circuit, rather than waiting for a price signal to indicate preferred behavior. By enabling resources to act as good citizens on the electric grid, Phasor-Based Control (PBC) facilitates arbitrarily high solar penetration levels. https://escholarship.org/uc/item/11n0s5cb Wed, 1 Sep 2021 00:00:00 +0000 von Meier, Alexandra https://escholarship.org/uc/item/1s88n8c6 The Oakland EcoBlock project (EcoBlock) seeks to develop a microgrid within an existing city block in Oakland California as a demonstration project on the viability of retrofitting an existing block of residential and commercial buildings into a microgrid capable of islanding from the grid. EcoBlock has considered a variety of different potential regulatory frameworks that might accommodate the objectives of the project. Based on an analysis of current law, the working model has been to rely upon existing provisions within the Public Utilities Code that recognize the right of individuals to install and operate electric equipment outside of Commission regulation if the generation, storage and distribution of power is limited to the owners’ “own use.” This white paper examines the “own use” exemption in section 218 of the Public Utilities Code and explores its potential as well as its limitations in the context of microgrids and recent Commission action. In so doing, it touches... https://escholarship.org/uc/item/1s88n8c6 Thu, 18 Mar 2021 00:00:00 +0000 von Meier, Alexandra Kammen, Daniel M https://escholarship.org/uc/item/4nz3q892 <p>This interdisciplinary eXtensible Building Operating System–Vehicles project focuses on controlling plug-in electric vehicle charging at residential and small commercial settings using a novel and flexible open-source, open-architecture charge communication and control platform. The platform provides smart charging functionalities and benefits to the utility, homes, and businesses.</p><p>This project investigates four important areas of vehicle-grid integration research, integrating technical as well as social and behavioral dimensions: smart charging user needs assessment, advanced load control platform development and testing, smart charging impacts, benefits to the power grid, and smart charging ratepayer benefits.</p> https://escholarship.org/uc/item/4nz3q892 Wed, 20 May 2020 00:00:00 +0000 Lipman, Timothy Callaway, Duncan Peffer, Therese von Meier, Alexandra https://escholarship.org/uc/item/9hz5h2sd This white paper describes the circumstances in California around the turn of the 21st century that led the California Energy Commission (CEC) to direct additional Public Interest Energy Research funds to address critical electric grid issues, especially those arising from integrating high penetrations of variable renewable generation with the electric grid. It contains an assessment of the beneficial science and technology advances of the resultant portfolio of electric grid research projects administered under the direction of the CEC by a competitively selected contractor, the University of California’s California Institute for Energy and the Environment, from 2003-2014. https://escholarship.org/uc/item/9hz5h2sd Wed, 18 Mar 2020 00:00:00 +0000 Brown, Merwin Cibulka, Lloyd von Meier, Alexandra Mateer, Niall https://escholarship.org/uc/item/8h46n8c9 This project developed and field-tested two methods of Adaptive Protection systems utilizing synchrophasor data. One method detects conditions of system stress that can lead to unintended relay operation, and initiates a supervisory signal to modify relay response in real time to avoid false trips. The second method detects the possibility of false trips of impedance relays as stable system swings “encroach” on the relays’ impedance zones, and produces an early warning so that relay engineers can re-evaluate relay settings. In addition, real-time synchrophasor data produced by this project was used to develop advanced visualization techniques for display of synchrophasor data to utility operators and engineers. https://escholarship.org/uc/item/8h46n8c9 Wed, 18 Mar 2020 00:00:00 +0000 Blumstein, Carl Cibulka, Lloyd Thorp, James Centeno, Virgilio King, Roger Babski-Reeves, Kari Ashrafi, Frank Madani, Vahid