220kV架空输电线路下工频电场的电磁感应仿真分析

摘要

针对目前高压输电线上在线监测装置对电源稳定性、安全性要求日益提高以及对输电线路感应取电电源的研究越发迫切的问题,仿真分析了220 kV架空输电线路的空间电场分布,并以房屋为例仿真分析线路周围环境对线路空间电场的畸变作用.在此基础上,对架空输电线路下方金属导体的感应电势进行仿真,所得结果表明金属导体的感应电势受放置高度和周围环境影响,在一定的条件下可以获得较大的感应电压,说明该方案在实际应用中的有效性和可靠性.%The online monitoring device on the high-voltage power transmission line has put forward increasing requirements for stability and safety of power source at present,and research on induction power supply of the transmission line is more and more urgent.Therefore,the paper analyzes space electric field distribution of 220 kV overhead transmission lines by simulation and distortion effect of surroundings of lines on space electric field by taking bungalow as the example.Further-more,it makes simulation on induced potential of the metal conductor under the overhead transmission line.Corresponding results indicate induced potential is affected by placing height and surroundings and it is able to get larger induction voltage under certain conditions,which proves effectiveness and reliability of this scheme in actual application.