接触网上方平行接近或交跨高压交流输电线路感应电研究

Studies on Induction Electric of High Voltage AC Power Transmission Line Parallelly Approaching to or Crossing-over of OCS

为研究停电检修状态下的接触网上方平行接近或交叉跨越高压交流输电线路时的感应电,保障接触网检修作业安全,在分析感应电耦合原理的基础上,采用多导体传输线模型计算感应电大小。考虑到高压交流输电线路在接触网通过的路径各点上所产生空间电位的大小和相位的差异,提出将接触网进行分段处理,计算每一小段的感应电压和电流,叠加得到接触网上总感应电压和电流,最后利用Matlab编程计算接触网在高压交流输电线路不同输送功率、交跨距离、交跨角度下的感应电大小。

In order to study the generated induction electric of the high voltage AC power transmission line which is parallelly approaching to or crossing over of the OCS when OCS is under power off for maintenance and for the purpose of guarantee of OCS maintenance operation safety,the volume of induction electric is calculated by use of multi-conductor transmission line model on the basis of analyzing the principle of induction electric coupling.It is proposed to divide the OCS into several segments and calculate the induction electric voltage and current of each segment.The calculated induced voltage and current will be superposed so as to obtain the total induced voltage and current.The volume of the induction electric of the high voltage AC power transmission line,under different transmission power,crossed distance,crossed angle,will be calculated by application of Matlab programming.