대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2003년도 추계학술대회 논문집 전력기술부문
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- Pages.337-340
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- 2003
외부 배전선 사고에 대한 분산전원 보호 알고리즘의 동작 수준 평가
Assessment of the Protection Algorithm Applied in Distributed Generations for Faults Occurred in the Interconnected Distribution Networks
- Jang, S.I. (Seoul National Univ.) ;
- Kim, S.G. (Kangwon National Univ.) ;
- Park, Y.U. (Kangwon National Univ.) ;
- Kim, K.H. (Kangwon National Univ.) ;
- Choi, J.H. (KEPRI)
- 발행 : 2003.11.13
초록
This paper describes the operational characteristics of protection algorithm applied in distributed generations(DG) for faults occurred in the interconnected distribution networks. The DG can be Influenced by abnormal grid conditions such as disturbances occurring in the neighboring distribution feeders as well as the interconnected power line. Particularly, in case of the fault happening in the neighboring distribution feeders emanated from the substation to which DG is connected, the protective devices in the DG might mis-operate. The mis-operation of protective devices can be varied by the fault conditions. The simulation results for Hoenggye substation model composed of five feeders using PSCAD/EMTDC showed that the number of mis-operation of protective devices applied in DG is about 0.66 times per one year.
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