A massive infusion of better technology is emerging as the final option for continued reliability of electrical services. It has also inspired reduced maintenance of existing assets. Anticipation of market deregulation has, for more than a decade, been a major disincentive to new investments in system capacity. The strategic challenge is that the pattern of technical need has persisted for so long. Translating these from the functional level into explicit recommendations for Federally supported RD&D is reserved for CERTS White Papers that draw upon the present one. The issues derived from the examined events are, for the most part, stated as problems and functional needs. Two earlier ones in 19 are included as early indictors of technical problems that persist to the present day. Policy issues are noted in passing, in so much as policy and policy changes define the most important forces that shape power system reliability on this continent.Įleven major disturbances are examined. The system events are assessed for both their technological and their institutional implications. The objective of this White Paper is to review, analyze, and evaluate critical reliability issues as demonstrated by recent disturbance events in the North America power system. Special Lessons From Recent Outages Aug*Ħ.1 Western System Oscillation Dynamics *Ħ.2 Warning Signs of Pending Instability *Ħ.7 Institutional Issues the Federal Utilities and WAMS *Ĩ. Recurring Factors in North American Outages *ĥ.2 Protective Controls Relay Coordination *ĥ.4Ĝircumstances Unknown to System Operators *ĥ.5 Understanding Power System Phenomena *ĥ.7 Maintenance Problems, RCM, and Intelligent Diagnosticians *Ħ. Overview of Major Electrical Outages in North America *ģ.1 Northeast Blackout: November 9-10, 1965 *ģ.2 New York City Blackout: July 13-14, 1977 *ģ.3 Recent Western Systems Coordinating Council (WSCC) Events *ģ.3.1 WSCC Breakup (earthquake): Janu *ģ.4 Minnesota-Wisconsin Separation and "Near Miss:" June 11-12, 1997 *ģ.6 NPCC Ice Storm: January 5-10, 1998 *ĥ. The work described in this report was funded by the Assistant Secretary of Energy Efficiency and Renewable Energy, Office of Power Technologies of the U.S. Review of Recent Reliability Issues and System EventsĪssistant Secretary for Energy Efficiency and Renewable Energy Synthetic Power Grid Test CasesĪ list of papers describing how the synthetic models were created and can be reference is included here.Consortium for Electric Reliability Technology Solutions If you would like to contribute additional cases, please email them to Prosper Panumpabi at one of those formats include a brief description of the case. These are TS for transient stability, GMD for geomagnetic disturbance analysis, PWDS for PowerWorld Dynamic Studio scenarios and MOV if case movies are available. Icons next to each case indicate whether additional parameters are included.
POWER WORLD SIMULATOR WSCC 3 MACHINE 9 BUS SYSTEM SIMULATOR
These cases are available in a variety of different formats, including PowerWorld Simulator (*.pwb, *.pwd, *.aux), Siemens PTI PSS/E (*.raw, *.dyr), and GE PSLF (*.epc, *.dyd).Īll cases include a power flow. This webpage is intended to provide a repository of publicly available, non-confidential power flow and/or transient stability cases.
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