대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

Clarke법과 위상면궤적을 이용한 고저항 지락사고의 판별에 관한 연구

A Study on the Classification of High Impedance Faults using Clarke Transformation and Plane Trajectory Method

  • 김철환 (성균관대 산업전자응용연구소) ;
  • 신영철 (성균관대 전기 전자 및 컴퓨터공학과) ;
  • 안상필 (성균관대 전기 전자 및 컴퓨터공학과)
  • Kim, C.H. (IEAC, Sungkyunkwan Univ.) ;
  • Shin, Y.C. (Dept. of Electrical & Computer Eng., Sungkyunkwan Univ.) ;
  • Ahn, S.P. (Dept. of Electrical & Computer Eng., Sungkyunkwan Univ.)
  • 발행 : 2001.07.18
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초록

This paper presents a new classification method for high impedance faults in power systems. Results of phase plane trajectory with Clarke modal transformation using postfault current and voltage are utilized to classify types of arcing faults. The performance of the proposed method is tested on a typical 154 kV korean transmission system under various fault conditions using EMTP. As can be seen from results, phase plane trajectory of postfault current should be combined with that of o component from Clarke modal transformation to give reliability of clear fault classification. Thus the proposed method can classify arcing faults including LIFs and HIFs accurately in power systems.

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