Journal of KIEE

The Korean Institute of Electrical Engineers (대한전기학회)
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A Contingency Screening Algorithm Using SIME for Transient Stability Assessment of the KEPCO System

  • Lee, J. (Dept. of Electrical Engineering Korea University, 1, 5-ka, Anam-dong, Sungbuk-ku, seoul, 136-701) ;
  • Lee, B. (Dept. of Electrical Engineering Korea University, 1, 5-ka, Anam-dong, Sungbuk-ku, seoul, 136-701) ;
  • Kwon, S.H. (Dept. of Electrical Engineering Korea University, 1, 5-ka, Anam-dong, Sungbuk-ku, seoul, 136-701) ;
  • Nam, H.K. (Dept. of Electrical Engineering Chonnam National University, 300, Youngbong-dong, Puk-gu, Gwanju, 500-757) ;
  • Ahn, T. (Korea Electric Power Corporation.) ;
  • Choo, J.B. (Korea Electric Power Research Institute,103-16, Munji-dong, Yusung-gu, Daejoon, 305-380, Korea.) ;
  • Yi, K. (Korea Electric Power Research Institute, 103-16, Munji-dong, Yusung-gu, Daejoon, 305-380, Korea.)
  • Published : 2001.03.01
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Abstract

SIME(Single Machine Equivalent) method has been recognized as a useful tool to determine transient stability of power system. In this paper, SIME method is used to develop the KEPCO transient stability assessment (TSA) tool. A new screening algorithm that can be generators are identified by a new index in the early stage of the time domain simulation. Thus, computational time require to find OMIB(One Machine Infinite Bus) can be reduced significantly. Second, clustering critical machines can be performed even in very stable cases. It enables to be avoid extra calculation of time trajectory that is needed in SIME for classifying the stable cases. This algorithm is applied to the fast TSA of the KEPCO system in the year of 2010.

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