基于水电关联信息的零电量低压用户窃电检测  

Detection of Electricity Theft by Low Voltage Users with Zero Power Consumption Based on Water-Electricity Correlation Information

作　　者：邹念 魏梅芳 苏盛[1] 郑应俊 周文晴 ZOU Nian;WEI Meifang;SU Sheng;ZHENG Yingjun;ZHOU Wenqing(School of Electrical&Information Engineering,Changsha University of Science and Technology,Changsha 410114,China;Technical Skills Training Center of State Grid Hunan Electric Power Co.,Ltd.,Changsha 410131,China)

机构地区：[1]长沙理工大学电气与信息工程学院,湖南长沙410014 [2]国网湖南省电力有限公司技术技能培训中心,湖南长沙410131

出　　处：《中国电力》2023年第12期206-216,共11页Electric Power

基　　金：国家自然科学基金资助项目(51777015);湖南省自然科学基金资助项目(2022JJ60089)。

摘　　要：低压居民窃电用户中的零电量用户,不能提供用户用电行为的有效信息,又容易与空置房用户混淆,是窃电检测中的一类特殊问题。利用居民用户用水、用电数据之间具有强关联性的特点,提出基于水、电关联信息的零电量用户窃电检测。首先,分析居民用户用电、用水数据间的关联关系;然后,构建用户日用电量与日用水量的最大互信息模型,计算不同时间尺度下的最大互信息系数来衡量其信息相关度;接着,对用户的最大互信息系数进行聚类,将显著偏离类簇的样本识别为水电量具有弱相关性的窃电嫌疑用户,当窃电嫌疑用户的用电量为零时即为零电量窃电用户;2个台区的测试算例表明:所提方法可有效检出零电量窃电用户,指导现场窃电检测工作。It is hard to obtain the effective information on electricity consumption behaviors of zero-power consumption users among low-voltage residential electricity theft users who are easily confused with vacant house owners,which is a special problem for electricity theft detection.Based on the strong correlation between water and electricity data of residential users,a zero-power user electricity theft detection method is proposed based on water-electricity correlation information.Firstly,the relationship between electricity and water consumption data of residential users is analyzed.Then,a maximal information model of users'daily electricity consumption and daily water consumption is constructed,and the maximum information coefficient(MIC)at different time scales is calculated to measure the information correlation.Thirdly,the user's maximal information coefficient is clustered,and the samples that deviate significantly from the cluster are identified as the suspected electricity theft users with weak water-electricity correlation.When the electricity consumption of the suspected electricity theft users is zero,they are identified as the electricity theft users with zero power consumption.The test examples of two distribution areas show that the proposed method can effectively detect the electricity theft users with zero power consumption and guide the on-site electricity theft detection work.This work is supported by National Natural Science Foundation of China(No.51777015)and Natural Science Foundation of Hunan Province(No.2022JJ60089).

关 键 词：多表合一 零电量用户 窃电 水电使用行为 最大互信息系数 小波聚类 

分 类 号：TM73[电气工程—电力系统及自动化] TU991.31[建筑科学—市政工程]