计及三相不平衡的有源配电网重构  

Active Distribution Network Reconfiguration Considering Three-Phase Imbalance

作　　者：邱革非[1] 杨浩宇 何超 骆钊[1] 刘铠铭 何虹辉 QIU Gefei;YANG Haoyu;HE Chao;LUO Zhao;LIU Kaiming;HE Honghui(College of Electric Power Engineering,Kunming University of Science and Technology,Kunming 650031,China)

机构地区：[1]昆明理工大学电力工程学院,昆明650031

出　　处：《内蒙古电力技术》2023年第2期14-22,共9页Inner Mongolia Electric Power

基　　金：云南省应用基础研究计划资助项目“多能源互补综合能源系统的耦合机理与市场运行优化机制研究”(2101AT070080);云南电网有限责任公司科技项目“以电能替代为核心的综合能源系统指标体系与配置优化研究”(YNKJXM20190087)。

摘　　要：针对单相光伏的大量接入引起配电网运行的三相不平衡、线路有功损耗增大问题,提出以有功损耗和三相不平衡度为目标函数,构建基于三相电流注入法的配电网动态重构模型,采用大M法对节点电压方程进行松弛,避免断开线路的约束条件对模型的影响,并采用多边形内近似法将非线性约束线性化。通过修改的IEEE 33节点配电系统的分析计算,验证了算法的有效性,提高了算法的求解效率和求解精度。Aiming at the proldem of three⁃phase unbalance and increased active power loss of distribution network caused by large access of single⁃phase photovoltaic,taking active power loss and three⁃phase imbalance as objective functions,propose a dynamic distribution network reconstruction model based on three⁃phase current injection method.The large M method is used to relax the node voltage equation to avoid the influence of the constraint condition of disconnected lines on the model.The nonlinear constraint is linearized by polygonal inner approximation.Through the analysis and calculation of the modified IEEE 33 node distribution system,the effectiveness of the proposed algorithm is verified,and the efficiency and accuracy of the proposed algorithm are improved.

关 键 词：三相电流注入法 分布式电源 配电网重构 有功损耗 三相不平衡度 

分 类 号：TM744[电气工程—电力系统及自动化]