含分布式电源的冰灾下配电网多故障抢修策略

doi:10.19595/j.cnki.1000-6753.tces.160919

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Abstract Multiple faults may occur in the distribution network under ice storm. In order to reduce the damage caused by ice storm on the distribution network, a multi-phased fault repair and melting ice model containing distributed generators (DGs) under ice storm was proposed in this paper, according to the impacts of different ice storm periods on different regions of the distribution network. In this model, the DGs were used to supply power for the important lost load, and the fault repair and melting ice process was divided into three stages. In the early fault repair and post-repair periods, the ice thickness of lines was the goal, and the line important metrics was introduced to obtain the ice melting sequences. In the medium repair period, taken the minimum of allocate fitness as the goal, the optimal resource allocation strategy and emergency repair mask were obtained by defining emergency resources vector and fault demand vector. On this basis, the least integrated financial loss was taken as the objective, and the discrete bacterial colony chemotaxis (DBCC) optimization algorithm was used to solve the optimal "melting ice+repair" program. An improved PG&E 69-bus system simulation has verified the feasibility and effectiveness of the proposed strategy.

Key words： Ice storm distribution network distributed generators (DGs) melting ice multi-fault repair optimization algorithm

Received: 20 June 2016 Published: 31 January 2018

PACS:

TM732

Fund:国家自然科学基金项目（61071201, 61374098）和河北省研究生创新项目（00302-6370010）资助

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