考虑网络重构的三相不平衡配电网μPMU组合优化配置  

Combined Optimal Configuration of μPMU for Three-phase Unbalanced Distribution Network Considering Network Reconstruction

作　　者：吉兴全 姜海洋 张玉敏 杨明[2] 蔡富东[3] 王成福 JI Xingquan;JIANG Haiyang;ZHANG Yumin;YANG Ming;CAI Fudong;WANG Chengfu(College of Electrical Engineering and Automation,Shandong University of Science and Technology,Qingdao 266590,China;Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education(Shandong University),Jinan 250061,China;Shandong Senter Electronic Co.,Ltd.,Zibo 255088,China)

机构地区：[1]山东科技大学电气与自动化工程学院,山东省青岛市266590 [2]电网智能化调度与控制教育部重点实验室(山东大学),山东省济南市250061 [3]山东信通电子股份有限公司,山东省淄博市255088

出　　处：《电力系统自动化》2025年第3期145-155,共11页Automation of Electric Power Systems

基　　金：山东省自然科学基金资助项目(ZR2022ME219);中国博士后科学基金面上项目(2023M734092)。

摘　　要：现有微型相量测量单元(μPMU)优化配置方法未充分考虑实际配电网拓扑结构变化频繁和三相不平衡的问题。因此,文中提出一种考虑网络重构的三相不平衡配电网μPMU组合优化配置方法。首先,基于配电网三相不平衡特性提出零注入相的概念,分析了其对网络局部可观测性的影响;将零注入相纳入μPMU配置规则可有效减少网络完全可观所需的μPMU配置数量。其次,为应对配电网拓扑结构变化导致部分区域不可观的问题,提出一种考虑三相不平衡配电网动态重构的μPMU优化配置模型;该模型将动态重构求解得到的典型拓扑结构作为μPMU的配置依据,并考虑三相和单相μPMU的配置成本差异,在实现μPMU组合配置成本最小化的同时提高系统量测冗余度。最后,以IEEE 34节点和IEEE 123节点系统为例进行仿真验证,结果表明所提模型能够适应配电网拓扑结构变化并显著降低μPMU配置成本。The existing optimal configuration methods of microphasor measurement units(μPMUs)fail to consider the frequent changes in the actual topology of distribution networks and the three-phase imbalance.Therefore,this paper proposes a combined optimal configuration method of μPMUs for three-phase unbalanced distribution networks considering network reconfiguration.Firstly,based on the three-phase unbalanced characteristics of distribution networks,the concept of zero-injection phase is put forward,and its effect on the local observability of the network is analyzed.Incorporating zero-injection phases into the μPMU configuration rules can effectively reduce the number of μPMUs that need to be configured for complete observability of the network.Secondly,to deal with the problem of partial unobservability caused by the changes in the topology of distribution networks,an optimal configuration model of μPMUs considering the dynamic reconfiguration of three-phase unbalanced distribution networks is proposed.This model takes the typical topology obtained by dynamic reconfiguration solution as the basis for μPMU configuration,and considers the cost differences between three-phase and single-phase μPMU configuration.While minimizing the combined configuration cost of μPMUs,the system measurement redundancy is improved.Finally,taking the IEEE 34-bus and IEEE 123-bus systems as cases for simulation verification,the results show that the proposed model can adapt to the changes in the topology of distribution networks and significantly reduce the configuration cost of μPMUs.

关 键 词：配电网 网络重构 微型相量测量单元 三相不平衡 零注入相 优化配置 

分 类 号：TM930[电气工程—电力电子与电力传动]