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为了分析雷电过电压在钢轨上的传输情况,通过计算不同途径雷电入侵轨道电路产生的过电压,建立调整态下雷电流在轨道电路上传输时的方程,在不同的轨道电路电气参数条件下,通过算例仿真分析了受电端轨面雷电过电压的变化情况。仿真结果表明:雷电直击钢轨产生的雷电过电压对轨道电路的影响最大;且轨道电路传输距离的增大使得接收端轨面雷电过电压减小,道床电阻的减小使得接收端轨面雷电过电压减小。
In order to analyze the lightning over-voltage transmission on the rail, by calculating the overvoltage generated by different ways of lightning intruding on the track circuit, the equation of the lightning current in the regulation state is established. When different track circuit electrical parameters are used, Through the example simulation, the change of overvoltage of lightning over rail surface is analyzed. The simulation results show that the lightning over-voltage generated by lightning strikes the rail has the greatest influence on the track circuit; and the increase of the transmission distance of the track circuit reduces the over-voltage of the lightning track on the receiving rail side and decreases the resistance of the track bed, Voltage decrease.