Improving transient stability using generator tripping based on tracking rotor-angle

George G. Karady, Mansour A. Kattamesh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Scopus citations


This paper presents a new method for preparing generator tripping look-up tables. The method uses off-line time domain analysis to build look-up tables of required generator trip arming. The method employs two algorithms. The first algorithm determines if generator tripping is required to attain transient stability for each credible system disturbance and operating condition. Tracking of relative rotor angles is used in the first algorithm. The second algorithm compares the electric power for each generator before and after the disturbance to determine the most appropriate generator tripping for transient stability. The 179-bus WSCC system is used to examine the proposed algorithms. The simulation results show that the proposed generator-tripping algorithms effectively and accurately determine the status of each generator in the system. Also, the simulation shows that tripping the generator that has maximum mismatch in electric power before and after the disturbance stabilizes the system.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Power Engineering Society Transmission and Distribution Conference
Number of pages6
StatePublished - 2002
Event2002 IEEE Power Engineering Society Winter Meeting - New York, NY, United States
Duration: Jan 27 2002Jan 31 2002


Other2002 IEEE Power Engineering Society Winter Meeting
Country/TerritoryUnited States
CityNew York, NY


  • Generator tripping
  • Tracking generator phase-angle
  • Transient stability

ASJC Scopus subject areas

  • General Energy
  • General Engineering


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