Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2007.07a
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- Pages.31-32
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- 2007
A Fault Section Detection Method for Ungrounded System Based on Phase Angle Comparison of Zero-Sequence Current
비접지 배전계통에서 영상전류 위상 비교에 의한 고장구간 검출 방법
- 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)
- Published : 2007.07.18
Abstract
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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