Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Study on the Restoration System for Distribution Networks Using Dynamic Division Method

동적분할 기법을 이용한 배전망의 정전복구 시스템에 관한 연구

  • 임찬호 (경주대 컴퓨터전자공학부)
  • Published : 2003.05.01
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Abstract

Comparing with transmission networks, the faults in distribution networks more often occurs because of the complicated structure and the adjacency to customers. Moreover the faults give direct damage to customers. So fault diagnosis and blackout restoration in distribution networks are very important elements to reduce the damage of customers and to maintain the stability. The restoration problem of distribution networks is subject to time. Minimizing the switching numbers in restoration process is the crucial element. In other words. the best restoration is to restore all blackout area through just one switching, if not the restoration has to be accomplished through several switching. This paper proposes the efficient restoration system in distribution networks to minimize the switching numbers. The proposed system uses the dynamic division method of hierarchical structure which consists of heuristic searching method and meta algorithm. The proposed system is applied to the sample networks, and the results showed a promising possibility.

배전망은 그 구조가 매우 복잡하고, 수용가와 인접되어 있으므로 송전망에 비하여 사고의 발생도 매우 빈번하다. 또한 배전망에서의 사고는 수용가에게 직접적인 피해를 발생시킬 수 있다. 따라서 수용가의 피해를 줄이고 전력공급의 안정성 확보를 위한 배전망에서의 고장진단과 정전복구는 필수적으로 요구되는 기능이다. 배전망의 정전복구는 시간적인 제약성에 종속되며, 정전복구 과정에서 발생하는 스위칭 수를 최소화하는 것이 가장 중요한 요소이다. 폭, 모든 정전구역을 한번의 스위칭으로 복구하는 것이 가장 이상적이며, 그렇지 못한 경우 여러 번의 스위칭으로 복구하여야 한다. 본 논문에서는 조작되는 스위치의 수를 최소화시키기 위한 배전망의 정전 복구 시스템을 제안하였다. 제안된 시스템에서는 휴리스틱 탐색방법과 메타-알고리즘의 동적분할 기법의 계층구조를 사용하고 있다. 제안된 정전복구 시스템의 성능을 검증하기 위하여 모의 배전망을 대상으로 성능평가를 수행하였다.

Keywords

References

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