基于GIS和电压波形相关性分析的低压配电网拓扑识别方法  

Topology Identification Method of Low-voltage Distribution Network Based on GIS and Voltage Waveform Correlation Analysis

作　　者：黄旭波 黄磊 艾丹 杨秋 姚林朋[2] HUANG Xubo;HUANG Lei;AI Dan;YANG Qiu;YAO Linpeng(Tongren Power Supply Bureau of Guizhou Power Grid,Tongren 554300,China;Department of Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]贵州电网有限责任公司铜仁供电局,贵州铜仁554300 [2]上海交通大学电子信息与电气工程学院电气工程系,上海200240

出　　处：《哈尔滨理工大学学报》2023年第5期42-50,共9页Journal of Harbin University of Science and Technology

基　　金：国家重点研发计划(2018YFB2100100);贵州电网公司科技项目(060500KK52200004)。

摘　　要：针对低压配电网拓扑结构人工校验成本高、效率低等问题,提出了一种基于GIS和电压波形相关性分析的低压配电网拓扑识别方法。首先根据GIS平台里台区配变和用户的地理信息,结合户变关系空间约束,筛选出重叠区域和非重叠区域,初步确定非重叠区域的户变关系。其次分析重叠区域用户和相邻台区配变的电压序列相关性,分别采用欧氏距离、DDTW、皮尔逊相关系数3种指标进行评估,以确定重叠区域的户变关系。最后持续动态监控重叠区域的电压相关性趋势,当用户和台区配变的电压相关性发生剧烈变化时,重新计算用户和相邻台区配变的电压相关性,判断用户所属台区,向运维人员推送告警信息以待人工校核确认。算例验证了本文方法的有效性和可行性。Aiming at the problems of high cost and low efficiency of manual calibration of low-voltage distribution network topology,a topology identification method of low-voltage distribution network based on GIS and voltage waveform correlation analysis is proposed.Firstly,according to the geographic information of the distribution and user in the GIS platform,combined with the spatial constraints of the household variable relationship,the overlapping areas and non-overlapping areas are screened out,and the household variable relationship of the non-overlapping areas is preliminarily determined.Secondly,the voltage sequence correlation between the user in the overlapping area and the distribution in the adjacent station area is analyzed,and the three indicators of Euclidean distance,DDTW and Pearson correlation coefficient are used to evaluate the household change relationship in the overlapping area.Finally,the voltage correlation trend of the overlapping area is continuously monitored dynamically,and when the voltage correlation between the user and the station area changes drastically,the voltage correlation of the user and the adjacent station area is recalculated,the station area to which the user belongs is determined,and the alarm information is pushed to the operation and maintenance personnel for manual verification and confirmation.A numerical example shows the effectiveness and feasibility of the proposed method.

关 键 词：低压拓扑识别 GIS 电压曲线相似性 欧氏距离 皮尔逊相关系数 

分 类 号：TM726[电气工程—电力系统及自动化]