대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

비접지 배전계통에서 영상전류 위상 비교에 의한 고장구간 검출 방법

A Fault Section Detection Method for Ungrounded System Based on Phase Angle Comparison of Zero-Sequence Current

  • 양하 (명지대학교 차세대전력기술연구센터) ;
  • 최면송 (명지대학교 차세대전력기술연구센터) ;
  • 이승재 (명지대학교 차세대전력기술연구센터)
  • Yang, Xia (Next-generation Power Technology Center, Department of Electrical Engineering, Myong-Ji University) ;
  • Choi, Myeon-Song (Next-generation Power Technology Center, Department of Electrical Engineering, Myong-Ji University) ;
  • Lee, Seung-Jae (Next-generation Power Technology Center, Department of Electrical Engineering, Myong-Ji University)
  • 발행 : 2007.07.18
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초록

In this paper, a fault section detection method is proposed for ungrounded system in the case of a single line-to-ground fault. A conventional method is used for faulted feeder selection according to the angular relationship between zero-sequence currents of the feeders and zero-sequence voltage of the system. Fault section detection is based on the comparison of phase angle of zero-sequence current. Proposed method has been testified in a demo system by Matlab/Simulink simulations. Based on Distribution Automation System(DAS), Feeder Remote Terminal Unit(FRTU) is used to collect those necessary data, at present a demo system is under developing using Manufacturing Message Specification (MMS) in IEC61850 standard.

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