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Placement of Remote-Controlled Switches to Enhance Distribution System Restoration Capability

2015; Institute of Electrical and Electronics Engineers; Volume: 31; Issue: 2 Linguagem: Inglês

10.1109/tpwrs.2015.2419616

1558-0679

Yin Xu, Chen‐Ching Liu, Kevin P. Schneider, Dan Ton,

Islanding Detection in Power Systems

A smart distribution system should restore service to interrupted customers as quickly as possible after an outage. Upgrading manual switches to remote-controlled switches (RCSs) enhances restoration capability. The placement of RCSs should consider both functional and economic requirements. This paper presents a systematic method to determine the set of switches to be upgraded for an existing distribution system. The maximum restoration capability is achieved by upgrading a near-minimum number of manual switches to RCSs. The RCS placement problem is formulated as a weighed set cover (WSC) problem. A greedy algorithm with a polynomial-time computational efficiency is designed to generate a near-optimal solution for the WSC problem. A 3-feeder 9-node test system and a 4-feeder 1069-node unbalanced test system with microgrids are used to validate the effectiveness of the proposed method.