A Study on the Classification of Arcing Faults in Power Systems using Phase Plane Trajectory Method

위상면궤적을 이용한 전력계통의 고장판별에 관한 연구

  • 박남옥 (한국전기연구원 전기시험연구소 검수시험실장) ;
  • 신영철 (성균관대 정보통신공학부) ;
  • 안상필 (한국전기연구원 전기시험연구소) ;
  • 여상민 (성균관대 정보통신공학부) ;
  • 김철환 (성균관대 정보통신공학부, 명지대 차세대전력기술연구센터)
  • Published : 2002.05.01

Abstract

Recently, there is greater demand for stable supply of electric power as higher level of our living. It becomes the important problem that the cause of fault in power system is found out in early stage, if once it occurs. In this respect, accurate classification of arcing faults in power systems is vitally important. This paper presents a new classification method for arcing faults in power system. To obtain data of various faults including high impedance fault(HIF) and low impedance fault(LIF), HIF model with the ZnO arrester is adopted and implemented within the overall transmission system model based on the electromagnetic transients program(EMTP). Results of phase plane trajectory if 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. 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.

Keywords

References

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