대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2008년도 제39회 하계학술대회
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- Pages.44-45
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- 2008
광역정전 방지를 위한 적응형 거리계전 기법
Adaptive Distance Relaying Scheme to Prevent Large Blackout
- Bae, Jae-Kwang (Kyungnam University) ;
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Lim, Seong-Il
(Kyungnam University)
- 발행 : 2008.07.16
초록
The zone 3 elements of distance relays play an important role during the propagation of cascaded events. The most challenging problem to mitigate catastrophic failures is to distinguish between actual faults with line flow transfer from other disconnected lines. This paper presents an adaptive protective relaying scheme based on Line Outage Distribution Factor(LODF) and Generation Shift Factor(GSF) to prevent zone 3 tripping during the cascaded events. Internet based secure peer to peer communication is recommended as a communication method of proposed scheme. Several communication issues such as reliability, speed and cyber security are discussed. In order to establish the feasibility of the proposed scheme, computer simulations for a six bus system has been performed.
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