SCE has been conducting tests of solar PV inverters to determine aspects of their electrical behavior under various grid conditions.
Project Directory
Title | PI |
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Wide-Area Real-Time Resources Adequacy Monitoring System (ACE Frequency) The NERC-RA real-time tool enables NERC Reliability Coordinators and Operations Management to monitor and track interconnections load-generations secondary control performance and compliance with related reliability standards. It also allows NERC staff, Operations Subcommittees, and Operations Management to analyze, assess, and identify root causes of critical interconnections frequency events. |
Martinez, Carlos |
Wide-Area Damping Control Proof-of-Concept The primary objective of this project is to design and demonstrate a prototype control system for damping inter-area oscillations in large-scale interconnected power systems. This is a collaborative effort involving the Bonneville Power Administration (BPA), Sandia National Laboratories, and Montana Tech University. The damping control strategy employs real power injections at strategically located points in the grid based upon real-time Phasor Measurement Unit (PMU) feedback. |
Schoenwald, Dave |
Voltage Stability Applications Using Synchrophasor Data The main objective of this project is to develop a voltage stability margin computation method using PMU data. The approach is to use the PMU data to estimate the Thevenin equivalent voltage and reactance, allowing a smaller size system to be analyzed for real-time stability application. Simultaneously, a new steady-state voltage stability technique called the AQ-bus method has been developed, which benefited this proposed voltage stability method. The program was handed over to BPA to allow for calculation, in an off-line capacity, of stability concerns. |
Chow, Joe |
Virtual Bids and Flexible Bids: Risk Mitigation and Congestion Relief This research is focused on two innovative bidding strategies in the day-ahead markets and the real-time market: virtual bids and flexible bids. |
Varaiya, Pravin |
Using Industrial Loads for Provisioning Ancillary Services This project is focused on establishing the business case for industrial ancillary services providers. Activities include determining the national and regional market potential of industrial DR, creating a user-friendly on-line tool and guidance document for use in discussions with potential industrial or commercial electricity users, and identifying demonstration opportunities for a follow-on Load as a Resource in an industrial facility. |
Larry Markel |
Understanding Effects of Data Quality on Market Functions This project focused on data quality on the real-time market operations of a power system. In particular, the project addressed the following pertinent issues: (i) in the presence of bad data, to what degree that real-time locational marginal prices are affected? (ii) What are the worst scenarios of bad data that have the most significant impact on real-time prices of electricity? (iii) What are the effects of analog and digital forms of bad data? (iv) What are the potential risks on market operations from cyber data attacks?
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Tong, Lang |
Transmission Unit Commitment in Economic Dispatch This project was designed to explore the potential saving in economic dispatch cost from simultaneous economic dispatch of generation resources and switching off lines in a smart grid environment. |
Oren, Shmuel |
Transmission Investment Assessment Under Uncertainty This project is developing methods that integrate capacity expansion decisions and OPF methodologies in a decomposition scheme in order to rigorously capture operational constraints such as security constraints, ramp limitations, and transmission flow limits—as well as longer-term investment issues. |
Hobbs, Ben |
Technical support for revisions to NERC Standard BAL-003 LBNL contractors John Undrill, Energy Mark, and Advanced System Research, participated in a variety of technical support activities leading to the revisions to NERC Standard BAL-003. As a result of these efforts the NERC Standard BAL-003 contains for the first time requirements for interconnection frequency response and creates obligations for balancing authorities to maintain minimum levels of frequency response. |
Martinez, Carlos |
Technical support for preparation of NERC Frequency Response Initiative report In 2012, NERC published the Frequency Response Initiative Report. LBNL staff and contractors (John Undrill, Energy Mark, and Advanced System Research) provided technical support for the development of the report, including: (a) an analysis of the balancing authority frequency response survey; (b) an analysis of the generator governor survey; and (c) an analysis of historic interconnection frequency response. |
Eto, Joe |
Systematic Model Validation and Parameter Calibration Tools Suite (MVPCTS) This tools suite to be developed uses PMU measurements to validate the models and calibrate incorrect parameters to describe a generator’s dynamic performance. It offers a non-intrusive alternative to traditional stage testing methods to provide this information—which is required by NERC standards—to grid operators. |
Diao, Ruisheng |
Synchrophasor System Data Baselining and Analysis (Wide-Area Baselining) Building on earlier baselining and analysis work for the four Eastern Interconnetion ISOs (PJM, MISO, NY ISO, and ISO-NE), this project will include address the recommendations from the ISOs. |
Bhargava, Bharat |
Synchrophasor Standards Support and Development This project provides direct technical support for industry-led activities, conducted through the IEEE and IEC, to develop consensus standards for the technologies involved in synchrophasor grid monitoring systems—such as the means for describing the performance of phasor measurement units. |
Martin, Ken |
Synchrophasor Metrology Gaps This project addresses gaps in synchrophasor metrology, including identification of emerging needs and development of solutions in the form of techniques, procedures, and tools. This project involves strong working relationships with NIST and NERC. |
Buckner, Mark |
Synchrophasor Data Validation and Conditioning This project developed a prototype application for validating and conditioning real-time synchrophasor data. |
Martin, Ken |
Synchronized Sampling Uses for Real-Time Monitoring and Control The scope of this project was to investigate the potential benefits of integrating information obtained by phasor measurement units (PMU) and other intelligent electronic devices (IED) into the control center real-time monitoring and control solution. The project focused on development of new software aimed at automated fault location and visualization. The phases below show the activities for the entire period: |
Kezunovic, Mladen |
SuperOPF Optimization Solver Enhancement The objective of the SuperOPF project is to develop a framework that will provide proper allocation and valuation of resources through true co-optimization across multiple scenarios. Instead of solving a sequence of simpler and approximate sub-problems, the SuperOPF approach combines as much as possible into a single mathematical programming framework with a full AC network and simultaneous co-optimization across multiple scenarios with stochastic costs. |
Chiang, Hsiao-Dong |
Statistical Analysis of Abnormal Behavior This project’s goal was to establish proof-of-concept for a tool that will enable identification of envisioned and unenvisioned atypical events on the grid. It combines sophisticated multivariate statistical algorithms, user-intuitive software, and WAMS (Wide-Area Measurement System) data to explore subtle nuances, typical patterns, and atypical events. |
Ferryman, Tom |
Spectral Coherence Analysis Tool The objective of this work was to extend the existing spectral coherence algorithm to improve the detection of persistent oscillations and provide more tractable information to the end user, in the form of daily summaries or outputs. Determining alarming techniques and thresholds, as well as integrating into the DISAT capabilities, we conducted the following work: |
Tuffner, Frank |
Solar PV Inverter Generation Testing |
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Scoping Study on Research and Priorities for Distribution-System Phasor Measurement Units This study addresses the potential use of phasor measurement units (PMUs) within electricity distribution systems, and was written to assess whether or not PMUs could provide significant benefit, at the national level. We analyze examples of present and emerging distribution-system issues related to reliability, integration of distributed energy resources, and the changing electrical characteristics of load. We find that PMUs offer important and irreplaceable advantages over present approaches. |
Eto, Joe Stewart, Emma Smith, Travis Buckner, Mark Kirkham, Harold Tuffner, Frank Schoenwald, Dave |
SCE FIDVR Events on Valley Distribution Circuits Starting in the summer 2011, SCE deployed power quality monitors within distribution systems of the Valley region to collect field measurements of FIDVR events.This multiyear study is intended to promote national awareness, improve understanding of potentialgrid impacts, and identify appropriate steps to ensure the reliability of the power system. Download the Results (6.7GB) |
Bravo, Richard |
Scalable Data Compression and Management for Spectral Analysis of Power Grid PMU Data The objective of this project was to improve the capability of BPA to manage the enormous amount of data used and generated in various analysis processes including oscillation detection. Working with domain experts in BPA, this project worked to develop data reduction algorithms to reduce the amount of data that OSISoft PI needs to process. Additionally, a data management system was also developed to handle big data. |
Zhou, Ning |
Responsive Commercial and Industrial Loads Providing Spinning Reserve This project sought to demonstrate of the use of large responsive loads from industrial processes, such as aluminum smelters, and commercial buildings, such as air conditioning systems in hotels, as sources of spinning reserves. |
Kueck, John |
Residential Demand-Response Spinning Reserve Demonstrations at PG&E and SCE This project conducted first-ever demonstrations of the use of large fleets of residential load management technologies (radio-dispatched switches on central air conditioning units) to provide spinning reserves that met the operational dispatch requirements of the California ISO. Separate demonstrations were conducted with the Southern California Edison and Pacific Gas and Electric Companies, each using a different load management dispatch platform and 1000’s of air conditioning load control technologies. |
Eto, Joe |