Project Directory

Title PI
Modal Analysis for Grid Operations (MANGO)

The objective is the development of a grid operations procedure using modal analysis for improving grid stability based on phasor measurements. To meet this need, modal analysis will be further explored in this project to develop real-time applications for grid operations. In prior work, we have extensively studied the mechanism of power grid low-frequency oscillations and identified the correlation of low damping and power flow of key transmission lines and generators. A MANGO procedure was established.

Dagle, Jeff Huang, Zhenyu (Henry)
Mode Meter Development

This project is enhancing algorithms for use in a mode meter that will detect, analyze, and potentially help localize forced oscillations in a power system. It also supports BPA in conducting probing tests for modal analysis in the Western Interconnection.

Tuffner, Frank Dagle, Jeff
Multi-Terminal HVdc

The new technology of Voltage Source Converters allows dc lines to be made into networks, much as ac lines are. However, some aspects of networking are different between ac (with which power engineers are familiar) and dc (which has not been networked).  The first year of the study outlined the differences and began to explore some of the possibilities offered by networking dc. The follow-on work will continue to explore the benefits, and address some of the obstacles.

Kirkham, Harold
National Interest Transmission Bottlenecks

DOE's 2002 National Transmission Grid Study recommended that DOE undertake designation of national interest transmission bottlenecks (NITB).  This project supported DOE in that process by assessing and addressing gaps in current methods, approaches, and data needed to make these designations. This project initiated research needed to address the limitations of available approaches toward improving future designations by DOE.  

Eto, Joe
Needs Assessment, Requirements, and Business Model for Next-Gen Instrumentation

This project is developing methods and data needed to assess the measurement capabilities that will be required by the next generation of PMUs in order for them to support future power system applications.

Buckner, Mark
NERC Load-Generation-Reserves Reliability Control, Standards, and Performance

This project provides research and technical support to the NERC Reliability Standards Drafting Teams (SDT) and Reliability Subcommittees, Resource Subcommittee, and RS-Frequency Working Group to identify and quantify reliability performance issues and trends, and assist in drafting and field testing and deploying reliability standards that improve situational awareness and system reliability. This work aims to provide technology solutions that address critical reliability issues, and improve load-generation control, reserves adequacy, and reliability performance.

Martinez, Carlos Carrera, Frank Xue, Song
New Security Tools for Real-Time Operations

The objective of this work was to create new security assessment tools for real-time operations. Two areas of work were pursued including (1) risk-based security assessment; (2) high-speed extended term time domain simulation. The work resulted in new concepts for security assessment as well as developments which improve security-related computation.

McCalley, Jim
Nexus of Power Systems Reliability, Economics and Air Quality during High Energy Demand Days

The scope of the project was to develop strategies to achieve the co-benefits of maintaining power systems reliability and protecting public health (from air pollution) during high electricity demand days (HEDDs). HEDDs are typically hot summer days when the demand for electricity is highest and the atmosphere is conductive to pollution formation such as ozone. Meeting high electricity demand during HEDDs requires dispatch of all generation resources, and demand response programs often lead to firing up of diesel backup generators.

Zhang, Max
On Valuing System Inertia and Fast Storage Response

The objective of the proposed work is to investigate the value of inertia as a service to grid operations.  We will consider questions such as how much inertia is needed for grid operation,  how much location comes into play in determining governor response, what magnitude and rate of charge/discharge storage would be needed to mimic system inertia, and what procedures would be used to value system inertia.

Overbye, Tom
Phasor Measurement Unit Testing and Documentation

The goal of the proposed research work is to develop a universally accepted test plan that would support the DOE and NIST efforts for phasor measurement and testing. 

Martin, Ken
Probalistic Forecast of Real-Time LMPs

As more renewable resources are integrated into the transmission system, and the power system operates closer to its capacity, congestion conditions become less predictable and locational marginal prices  more volatile. The increased congestion and price uncertainties pose significant challenges to system operators and market participants.

Tong, Lang
Proxy Limits and Congestion Metrics

The purpose of this study was to determine the best way to incorporate “proxy-limits” in a DCOPF to preserve features of the solution of a more detailed ACOPF.  Specific voltage and stability limits cannot be directly represented in a DCOPF and are indirectly included as line flow limits.  This research sets out to determine the best way to set proxy limits to preserve the dispatch and prices of the ACOPF, in a DCOPF representation.

Lesieutre, Bernie
Random Topology Power Grid Modeling and Automated Simulation Platform

This project is developing approaches for automatically generating hypothetical power grid models that preserve key attributes of real power grids—which can then be used to study issues that affect these grids but  do not require provision of sensitive or hard-to-find information on the true attributes of real power grids. This research addresses a key limitation of many current studies, which is access to detailed information on actual power systems.

Wang, Zhifang
Real Time Dynamics Monitoring System (RTDMS) Development and Installation

This project was designed to develop and test advanced prototype applications on the Real-Time Dynamic Monitoring System (RTDMS) platform to provide dispatchers and reliability coordinators with a unified wide-area grid monitoring visualization capability that provides dispatchers and reliability coordinators an instant visual snapshot of key system metrics. 

Dyer, Jim
Real-Time Reliability Tools for Situational Awareness

Real-time reliability tools provide grid operators with accurate information on current operating conditions in order to inform timely corrective actions when they are needed to maintain or restore reliable operations.

Real-Time Voltage Security Assessment (RTVSA)

The Real-Time Voltage Security Assessment (RTVSA) project was designed to be part of the suite of advanced computational tools for congestion management that is slated for practical applications in California. Modern voltage assessment methods include the development of such advanced functions as identification of weak elements, automatic selection of remedial actions and automatic development of composite operating nomograms and security regions.

Eto, Joe
Real-Time Wide Area Control

This project was designed to work with industry leaders to frame potential demonstrations of emerging real-time control concepts on bulk power systems.  These concepts would then be presented to stakeholders for potential funding in FY10 and beyond. 

Bose, Anjan
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
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
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
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
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
Solar PV Inverter Generation Testing

SCE has been conducting tests of solar PV inverters to determine aspects of their electrical behavior under various grid conditions.

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
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