Transient stability margin assessment for large power system using time domain simulation based hybrid extended equal area criterion method

Ka Wing Chan, Q. Zhou, T. S. Chung

Research output: Journal article publicationConference articleAcademic researchpeer-review

8 Citations (Scopus)


Time domain based on-line dynamic security assessment (DSA) system requires fast and reliable method to calculate the stability margin. This paper presents the analysis of transient stability margin (TSM) using the Extended Equal Area Criterion (EEAC) method for a large power system for a given contingency for real-time applications. This paper also proposes a new method to identify the critical machine based on post-fault trajectory. The method has been tested on a realistic 20-generator 100-bus 256-branch reduced UK system. A good assessment of stability limits was obtained.
Original languageEnglish
Pages (from-to)405-409
Number of pages5
JournalIEE Conference Publication
Issue number478 II
Publication statusPublished - 1 Dec 2001
Event5th International Conference on Advances in Power System Control, Operation and Management - Tsimshatsui, Kowloon, Hong Kong
Duration: 30 Oct 20001 Nov 2000


  • Dynamic security assessment
  • Extended equal area criterion
  • Stability margin assessment

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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