基于GPS差分定位的变电站电磁干扰位置识别

Identification of EMI location in substation based on GPS differential positioning

由于变电站中各种设备的增加,会导致大量的电磁干扰产生,严重影响变电站的正常运行。为解决这一问题,设计一种基于全球定位系统(Global Positioning System,GPS)差分定位技术的变电站电磁干扰位置识别方法。设计电磁干扰采集平台,实现变电站电磁干扰信号的采集,并进行消噪处理与时域滤波处理。通过GPS差分定位技术实现变电站电磁干扰信号的位置识别。测试结果表明,该方法的单一干扰源平均定位误差低于20 cm,能够实现多干扰源的定位,同时对于较远距离的多干扰源有着较低的定位误差。

Due to the increase of various equipment in the substation,a large number of electromagnetic interference will be generated,seriously affecting the normal operation of the substation.In order to solve this problem,a substation EMI location recognition method based on GPS differential positioning technology is designed.The EMI acquisition platform is designed to realize the acquisition of the EMI signal in the substation,and the noise elimination processing and time domain filtering processing are carried out.Through GPS differential positioning technology,the location identification of EMI signals in substations is realized.The test results show that the average location error of a single interference source is less than 20 cm,which can realize the location of multiple interference sources,and has a low location error for multiple interference sources in a long distance.