摘要
为解决反窃电中窃电报警准确性低、及时性差与取证难的问题,从现场电能计量装置异常工况特征分析入手,提出一种新的基于载波异常监测的窃电行为判断方法。依据电能统计理论把窃电方法划分成降低电压的欠压法、降低电流的欠流法和更改相位的移相法,依次分析三种窃电方法的特征,实现现场电能计量装置异常工况特征的提取。利用载波技术传输现场视频信息,以实现窃电现场视频取证及异常数据信息传送等问题为出发点,逐步研究分析,建立利用电力线载波进行视频信息传输中继与现取证的系统架构。将电力载波芯片LME2980看作载波通信模块的芯片,设计载波通信模块,介绍了载波通信方法。应用实例及性能测试结果表明,所提方法实用性强,解决了反窃电工作中最迫切与亟须解决的主要问题:(1)准确性(窃电不误报);(2)及时性(窃电立刻报);(3)有效性(解决取证难)。
In order to solve the problem of low accuracy,poor timeliness and difficult evidence collection in anti-tampering,the abnormal operating conditions of the electric energy metering device in the field was analyzed firstly and a new method to judge the tampering behavior based on the carrier abnormality monitoring was proposed.Based on the statistical theory of electric energy,the electricity-stealing method was divided into the under-voltage method to reduce the voltage,the under-current method to reduce the current and the phase-shift method to change the phase,the characteristics of the three kinds of electricity-stealing methods in turn were analyzed and the abnormal working condition characteristics of the on-site electric energy metering device the extraction were realized.Using carrier technology to transmit live video information,in order to realize the on-the-spot video forensics and abnormal data information transmission,the system architecture of relay and present card using video signal transmission of power line carrier is established.The power carrier chip LME2980 as a carrier communication chip module,design of carrier communication module,introduced the carrier communication method.The application examples and the performance test results show that the proposed method is practical and solves the most urgent and urgent problems to be solved in anti-tampering work：（1）accuracy（theft without false alarm）;（2）timeliness（stealing electricity immediately reported）;（3）effectiveness（to solve the evidence collection difficult）.
作者
青志明
张宏艳
龙漪澜
傅望
刘化龙
陈勇
QING Zhi-ming;ZHANG Hong-yan;LONG Yi-lan;FU Wang;LIU Hua-long;CHEN Yong(Training Center of Skills,Chongqing Electric Power Company,State Grid of China,Chongqing 400053,China;Nan＇an Power Supply Branch Company,Chongqing Electric Power Company,State Grid of China,Chongqing 400060,China;Chongqing University of Posts and Telecommunications,Chongqing 400060,China)
出处
《科学技术与工程》
北大核心
2018年第20期246-251,共6页
Science Technology and Engineering
关键词
载波
异常监测
窃电
行为
判断
cattier wave
anomaly monitoring
stealing
behavior
judgment
