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Coupling Path and Distribution Characteristics of Pulse Disturbance on High Speed EMU Body

机译：高速动车组脉冲干扰的耦合路径和分布特性

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摘要

Pulse disturbance are created when the train raises its pantograph or pantograph arcing. It is coupled into the train body through the high-voltage cable in the electric multiple unit (EMU), which will cause the train body potential fluctuation and jeopardize the normal operation of the EMU. This paper provides a comprehensive analysis of the conduction path of this pulse disturbance. First, the coupling path between the pulse and the train body was studied by establishing the equivalent circuit and then calculating the distribution parameters. The induced voltage was obtained by simulation which was in good agreement with the actual measurement results. Then the distribution of current on the train body was analyzed, and the surface current distribution on the train body was calculated by the finite difference time domain method. Finally, the distribution of current at low frequency and high frequency was studied.
机译：火车抬起受电弓或受电弓电弧时会产生脉冲干扰。它通过电动多单元（EMU）中的高压电缆耦合到火车车体中，这将导致火车车体电势波动并危及EMU的正常运行。本文对这种脉冲干扰的传导路径进行了全面分析。首先，通过建立等效电路，然后计算分布参数，研究脉冲与列车主体之间的耦合路径。通过仿真获得了感应电压，与实际测量结果吻合良好。然后分析了车体上的电流分布，并通过时域有限差分法计算了车体上的表面电流分布。最后，研究了低频和高频电流的分布。

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