Transient stability analysis based on dynamic single machine equivalent

Wataru Fujii*, Jun Wakisaka, Shinichi Iwamoto

*Corresponding author for this work

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

    9 Citations (Scopus)


    This paper proposes a new method for assessing multi-swing transient stability using the single machine equivalent (SIME) method, for power systems which have highly-complex dynamic characteristics. In this paper, the fundamentals of SIME are first explained as the basic theory of the proposed method. Then, the generator grouping method and the stability margin computing method used in this paper are reviewed respectively, focusing on the 1st swing instability. Next a dynamic single machine equivalent which analyzes the multiswing instability is introduced, and then the above two methods are embedded in it to compute multi-swing stability margins. Simulations are conducted on a 3-machine 9-bus system and IEEJ EAST 10-machie 47-bus system to assess the validity of the proposed method.

    Original languageEnglish
    Title of host publication2007 39th North American Power Symposium, NAPS
    Number of pages6
    Publication statusPublished - 2007
    Event2007 39th North American Power Symposium, NAPS - Las Cruces, NM
    Duration: 2007 Sept 302007 Oct 2


    Other2007 39th North American Power Symposium, NAPS
    CityLas Cruces, NM


    • Multi swing instability
    • Power system transient stability
    • Single machine equivalent method

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Electrical and Electronic Engineering

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