New approach to transient stability evaluation in power systems

M. A. Pai, P. W. Sauer, F. Dobraca

Research output: Contribution to journalConference article

Abstract

A relay margin concept is proposed for transient stability evaluation in power systems. Attention is given to modeling issues, security monitoring through relay margins, and their sensitivities for a given contingency. In response to a given contingency the relay activity is monitored by doing a fast simulation. A relay margin is defined for all the relays in the system, including those which clear the fault and those which are affected by the fault. It is suggested that this information would be more useful to an operator than a single quantity such as critical clearing time as in direct methods.

Original languageEnglish (US)
Pages (from-to)676-680
Number of pages5
JournalProceedings of the IEEE Conference on Decision and Control
StatePublished - Dec 1 1988
EventProceedings of the 27th IEEE Conference on Decision and Control - Austin, TX, USA
Duration: Dec 7 1988Dec 9 1988

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Modeling and Simulation
  • Control and Optimization

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