基于集群划分的含高比例户用光伏配电网电压控制研究  

Research on voltage control of distribution networks with high-proportion household photovoltaics based on cluster division

作　　者：冯侃 魏立保[1] 吴兆彬 刘文进[1] 徐清 郝国捷 FENG Kan;WEI Libao*;WU Zhaobin;LIU Wenjin;XU Qing;HAO Guojie(Baiyin Power Supply Company Gansu Electric Power Company State Grid,Baiyin 730900,China)

机构地区：[1]国网甘肃省电力公司白银供电公司,甘肃白银730900

出　　处：《综合智慧能源》2025年第2期60-70,共11页Integrated Intelligent Energy

基　　金：国家自然科学基金项目(62066024)。

摘　　要：高比例户用光伏接入配电网中,源荷特性变化带来大量电压越限问题,需要一种有效的配电网电压控制方法。首先,建立一种考虑电气模块度指标、耦合度指标、功率平衡度指标的综合划分指标,实现含高比例户用光伏配电网的集群划分。在各集群内含储能系统的节点中,利用有功-电压灵敏度选出各集群内的关键控制节点。考虑以储能作为调压手段,在计及储能充放电功率运行约束条件下,以电压偏差和网损最小为目标函数,构建基于集群划分的电压控制模型,并根据越限电压的节点所在集群的功率需求优先调控关键控制节点处的储能系统,以实现电压控制。最后,对含高比例户用光伏和储能系统的IEEE 33节点系统进行分析,验证基于集群划分的配电网电压控制方法的有效性。In a distribution network with a high proportion of household photovoltaic access,changes in source and load characteristics lead to numerous over-limit voltages,necessitating an effective voltage control method for distribution networks.In this study,a comprehensive division index,considering electrical modularity index,coupling degree index and power balance index,was established to realize the cluster division of a distribution network with a high proportion of household photovoltaics.Among the nodes with energy storage systems in each cluster,key control nodes in each cluster were selected using active-voltage sensitivity.Considering energy storage for voltage regulation,under the constraints of energy storage charging and discharging operations,a voltage control model based on cluster division was constructed with the minimum voltage deviation and network loss as the objectives.According to the power demand of the clusters containing the nodes with over-limit voltage,the energy storage systems at the key control nodes were preferentially regulated to realize effective voltage control.The IEEE 33 node system with a high proportion of household photovoltaics and energy storage system access was analyzed to verify the effectiveness of the voltage control method for the distribution network based on cluster division.

关 键 词：配电网电压控制 高比例户用光伏 储能系统 集群划分 关键控制节点 

分 类 号：TM712[电气工程—电力系统及自动化]