2016•The Transactions of The Korean Institute of Electrical EngineersRequires access

Contingency Analysis about Restoration of outage in Distribution System

Jeong‐Eun Park, Hyung-Seung Kim, Myeon-Song Choi, Seung‐Jae Lee, Seong-Il Lim, Seung-Ho Hyun

Abstract

This paper identifies the issues of contingency analysis for restoration in distribution systems. Contingency analysis has been applied to transmission systems but not to distribution systems. The distribution system is different from transmission system. So it is hard to apply for existing contingency analysis to distribution system. In this paper, a new contingency analysis method for distribution systems is proposed. The proposed method is based on service restoration capability. It aims to minimize outage left after service restoration in case of a fault in advance. The method estimates the vulnerability which is represented by zone restoration index proposed in. Applying the proposed method, operators could change the system so that it does not leave any outage left after restoration. Case study has been carried out on a five feeder system and its results show effectiveness of the method.

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Available abstract

Key concepts: Contingency, Transmission system, Reliability engineering, Vulnerability (computing), Service (business), Transmission (telecommunications), Computer science, Fault (geology)