| 引用本文: | 李文云,曹敏,李坤,等.考虑合环调电约束的配电网快速重构方法[J].电力系统保护与控制,2019,47(16):159-165.[点击复制] |
| LI Wenyun,CAO Min,LI Kun,et al.A fast feeder reconfiguration method with loop closing network constraints considered[J].Power System Protection and Control,2019,47(16):159-165[点击复制] |
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| 考虑合环调电约束的配电网快速重构方法 |
| 李文云,曹敏,李坤,王丰,凌万水,钱祥华,王金芹,刘红文 |
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| (云南电网有限责任公司电力科学研究院，云南 昆明 650217;云南电网有限责任公司瑞丽供电局， 云南 瑞丽 678600;上海金智晟东电力科技有限公司，上海 200233) |
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| 摘要: |
| 为解决10 kV配电网合环调电过程针对合解环开关最优选择问题，提出了以网络损耗为目标，以合解环网络的线路功率限值、电压限值和保护限值为约束条件进行网络重构的方法。该方法采用快速改进遗传算法按开关状态进行二进制染色体编码，利用合环后网络的计算结果，构建针对基因染色体品质编码库，以校核下一代基因染色体编码，加速了算法过程。同时利用分布系数法计算解环后网络的潮流状态，避免了再次潮流计算。测试算例验证了算法的有效性，为合环调电安全实施提供了保证。 |
| 关键词: 配电网 合环调电 网络重构 遗传算法 |
| DOI：10.19783/j.cnki.pspc.181156 |
| 投稿时间：2018-09-07修订日期：2018-11-04 |
| 基金项目:国家重点研发计划项目资助(2016YFB0900200) |
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| A fast feeder reconfiguration method with loop closing network constraints considered |
| LI Wenyun,CAO Min,LI Kun,WANG Feng,LING Wanshui,QIAN Xianghua,WANG Jinqin,LIU Hongwen |
| (Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650217, China;Ruili Power Supply Bureau of Yunnan Power Grid Co., Ltd., Ruili 678600, China;Shanghai Wiscom Sunest Power Technology Co., Ltd., Shanghai 200233, China) |
| 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). |
| Key words: distribution network loop closing operation feeder reconfiguration genetic algorithm |
