基于相邻节点间垂电压幅值比的有源配电网拓扑检测方法  

Topology Detection Method of Active Distribution Network Based on Vertical Voltage Amplitude Ratio Between Adjacent Nodes

作　　者：董冉昊 王言邦 伍泓亮 张艳坤 林湘宁[2] DONG Ranhao;WANG Yanbang;WU Hongliang;ZHANG Yankun;LIN Xiangning(State Grid Anhui Electric Power Co.,Ltd.Chuzhou Power Supply Company,Chuzhou,Anhui 239000,China;China State Key Laboratory of Advanced Electromagnetic Engineering and Technology(Huazhong University of Science and Technology),Wuhan,Hubei 430074,China)

机构地区：[1]国网安徽省电力有限公司滁州供电公司,安徽滁州239000 [2]强电磁工程与新技术国家重点实验室(华中科技大学),湖北武汉430074

出　　处：《广东电力》2024年第10期84-93,共10页Guangdong Electric Power

基　　金：国网滁州供电公司科技项目(B312M023000L)。

摘　　要：高渗透率分布式能源接入配电网,导致配电网结构复杂。针对树状搜索法、矩阵法进行有源配电网拓扑辨识计算量大、效率低的缺点,将5G通信技术与馈线自动化技术结合,加快数据的采集、传递,并提出基于相邻节点间垂电压幅值比的有源配电网拓扑变动检测方法。首先,将分布式馈线自动化终端与5G通信技术结合进行智能终端接力查询,完成配电网拓扑初始结构识别;其次,提出相邻节点间垂电压的概念,基于垂电压比值变化对拓扑变动进行检测;最后,在MATLAB/Simulink仿真平台上验证所提方案的可行性。仿真结果表明,所提方案基于相邻节点间电压数据信息检测可以检测配电网拓扑结构变动,有效降低了开关量误报对拓扑辨识结果的影响,有效提高了拓扑变动检测的准确性。High-penetration distributed energy access to the distribution network leads to complex network structures.In response to the drawbacks of the tree search method and matrix method in active distribution network topology identification,such as large computational complexity and low efficiency,this paper combines 5G communication technology with feeder automation technology to accelerate data acquisition and transmission.A topology change detection method for active distribution networks based on the amplitude ratio of vertical voltages between neighboring nodes is proposed.Firstly,the intelligent terminals,which are combined with distributed feeder automation terminals and 5G communication technology,perform relay queries to identify the initial structure of the distribution network topology.Secondly,the concept of vertical voltage between neighboring nodes is introduced,and topology changes are detected based on the changes in the voltage ratio.Finally,the feasibility of the proposed scheme is verified on the MATLAB/Simulink simulation platform.The simulation results show that the proposed scheme can detect changes in the distribution network topology based on the voltage data information be-tween neighboring nodes.It effectively reduces the impact of switching errors on the topology identification results and improves the accuracy of topology change detection.

关 键 词：分布式馈线自动化 智能终端 相邻节点 垂电压 拓扑辨识 配电网 

分 类 号：TM727[电气工程—电力系统及自动化]