The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A New Algorithm for Unstable Mode Decision in the On-line Transient Stability Assessment

온라인 과도안정도 평가를 위한 새로운 불안정모드 선정 알고리즘

  • 장동환 (한국지역난방공사 기술연구소) ;
  • 김정우 (한국지역난방공사 강남지사) ;
  • 전영환 (홍익대학교 전기전자공학부)
  • Published : 2008.07.01
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Abstract

The necessity of online dynamic security assessment is getting apparent under Electricity Market environments, as operation of power system is exposed to more various operating conditions. For on-line dynamic security assessment, fast transient stability analysis tool is required for contingency selection. The TEF(Transient Energy Function) method is a good candidate for this purpose. The clustering of critical generators is crucial for the precise and fast calculation of energy margin. In this paper, we propose a new method for fast decision of mode of instability by using stability indices and energy margin. The method is a new version of our previous paper.[1] Case studies are showing very promising results.

Keywords

References

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