| 引用本文: | 林湘宁,李卓,叶雨晴,马啸,王子璇,许烽,王朝亮.基于并查集的柔性多状态开关定容方法[J].电力自动化设备,2020,40(6): |
| LIN Xiangning,LI Zhuo,YE Yuqing,MA Xiao,WANG Zixuan,XU Feng,WANG Chaoliang.Sizing method of flexible multi-state switches based on union-find set[J].Electric Power Automation Equipment,2020,40(6): |
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| 摘要: |
| 柔性多状态开关(FMSS)作为配电网改造中的重要电力电子元件，因成本较高和相关技术的不成熟，尚未得到广泛应用。为合理规划FMSS的容量，同时兼顾配电网经济性和供电可靠性，以年均总成本最小为优化目标，建立了含新能源配电网的综合成本评价模型，并应用粒子群优化算法进行求解。为考虑FMSS运行模式的动态切换，等效简化了复杂工况下FMSS的工作模式，引入并查集算法以快速、有效地确定FMSS实时运行模式，大幅提升了定容问题的求解速度，克服了现有优化配置方案对FMSS运行策略多样性和动态性考虑不够充分的缺陷。IEEE 14节点和IEEE 33节点互联配电系统的多组对比仿真结果表明，所提方法在求解速度上有一定的优越性，优化所得方案能促进新能源消纳，提高配电网供电可靠性，且具备良好的经济效益。 |
| 关键词: 配电网 柔性多状态开关 容量规划 并查集 经济性 可靠性 |
| DOI：10.16081/j.epae.202006003 |
| 分类号:TM73 |
| 基金项目:国家重点研发计划项目(2017YFB0903100)；国家电网公司科技项目(521104170043) |
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| Sizing method of flexible multi-state switches based on union-find set |
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LIN Xiangning1, LI Zhuo1, YE Yuqing1, MA Xiao1, WANG Zixuan1, XU Feng2, WANG Chaoliang2
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1.State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China;2.Electric Power Research Institute of State Grid Zhejiang Electric Power Co.,Ltd.,Hangzhou 310014, China
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| Abstract: |
| As an important power electronic device for distribution network transformation, FMSS(Flexible Multi-State Switch) has not been widely applied due to its high cost and immature technology. In order to plan the FMSS capacity rationally, and take the economy and power supply reliability of distribution network into account at the same time, a comprehensive cost evaluation model of the distribution network containing renewable resources is established, which takes the minimum annual total cost as the optimization objective. And the particle swarm optimization algorithm is applied to solve the sizing problem. Considering the dynamic switching of operating modes for FMSS, the operating modes of FMSS under complex conditions are simplified, and the union-find set algorithm is introduced to rapidly and effectively identify the real-time operating modes of FMSS. It highly improves the solving speed of the sizing problem, and overcomes the defects of the existing optimization schemes that fails to fully consider the diversity and dynamics of the operation strategy for FMSS. Several comparative simulative results in IEEE 14-bus and 33-bus interconnected distribution systems indicate that the proposed method has a certain superiority in computing speed, and the obtained optimal scheme can promote the consumption of renewable energy, improve the power supply reliability of distribution networks, and has favorable economic benefits. |
| Key words: distribution network FMSS capacity planning union-find set economy reliability |
