대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2004년도 하계학술대회 논문집 A
- /
- Pages.257-259
- /
- 2004
분산전원이 연계된 배전 계통의 고장 선로 구분
Identification of the faulted Feeder it Distribution Networks with Distributed Generations
- Kim S. G. (Kangwon National Univ.) ;
-
Kim K. H.
(Kangwon National Univ.) ;
- Jang S. I. (Seoul National Univ.) ;
-
Kang Y. C.
(Chonbuk National Univ)
- 발행 : 2004.07.14
초록
This paper proposes the identification method for the faulted feeder, where it identify whether the faulted feeder is the DG-connected feeder or the neighboring feeder (but sharing the same bus of the substation). In general, DG has to be disconnected from the grid when the fault occurs on the interconnected distribution feeder as soon as possible. However, the faults occured on the neghboring feeder would mistakenly cause the disconnection of the DG. For reliable operation of DG, DG should be sustained at the fault occurred on neighboring distribution feeders. The proposed identification method utilizes the impedance monitored from the DG and examines the coordination of overcurrent relay of the distribution system. This paper describes how the proposed method to identify the faulted feeder and how the method can be utilized.
키워드