电器与能效管理技术Issue(3)：30-34,67,6.DOI:10.16628/j.cnki.2095-8188.2019.03.006
基于阻抗分析的居民用户异常用电研判模型研究
Model Research on Abnormal Power Consumption Judgment of Residential Users Based on Impedance Analysis
摘要
Abstract
Abnormal power consumption of residential was judged by circuit impedance, which was calculated with the AMI measurement data.Firstly, the impedance analysis model of low voltage power grid was studied, including equivalent circuit model and mathematical model.Then optimal solution method of multiple linear regression was studied, to solve math model with only terminal voltage and current data.After that, from the circuit influence mechanism, power stealing model was researched, which includes the main judgement with home impedance, the second judgement with line impedance and the final judgement with load curve.This method can solve the judgement mistake caused by measurement accuracy.In the last, an example was given to verify the accuracy of the impedance calculation method and the feasibility of abnormal power consumption judgment.The calculation deviation of the stealing electricity is less than 10％.关键词
线路阻抗/异常用电/窃电模型/多元线性回归/窃电量Key words
line impedance/abnormal power consumption/stealing model/multiple linear regression/stealing electricity分类
信息技术与安全科学引用本文复制引用
吴少雷,肖坚红,张波,凌松,史亮,张良..基于阻抗分析的居民用户异常用电研判模型研究[J].电器与能效管理技术,2019,(3):30-34,67,6.基金项目
国网公司科技项目:用电信息采集系统支撑配网运行高级应用 （）
