A fast feeder reconfiguration method with loop closing network constraints considered
DOI:10.19783/j.cnki.pspc.181156
Key Words:distribution network  loop closing operation  feeder reconfiguration  genetic algorithm
Author NameAffiliation
LI Wenyun Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650217, China 
CAO Min Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650217, China 
LI Kun Ruili Power Supply Bureau of Yunnan Power Grid Co., Ltd., Ruili 678600, China 
WANG Feng Shanghai Wiscom Sunest Power Technology Co., Ltd., Shanghai 200233, China 
LING Wanshui Shanghai Wiscom Sunest Power Technology Co., Ltd., Shanghai 200233, China 
QIAN Xianghua Ruili Power Supply Bureau of Yunnan Power Grid Co., Ltd., Ruili 678600, China 
WANG Jinqin Ruili Power Supply Bureau of Yunnan Power Grid Co., Ltd., Ruili 678600, China 
LIU Hongwen Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650217, China 
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Abstract:A feeder reconfiguration method is presented with the aim of decreasing network losses subject to branch flow limits, voltage limits and protection triggering limits to optimize the selection of breakers for loop closing and opening operation at the 10 kV distribution network. An improved genetic algorithm with binary chromosome encoding for breaker status is used. A chromosome library with feature encoding is created according to the calculation results for closed loop network to accelerate the algorithm process. A distribution coefficient method is used to calculate the power flow for open loop network based on the closed loop network to avoid extra power flow calculation. A study case demonstrates the effectiveness and correctness of the method which secures the loop closing operation for distribution network. This work is supported by National Key Research and Development Program of China (No. 2016YFB0900200).
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