冲击电压激励下轨道交通过渡电阻快速测量方法

Rapid Measurement Method of Transition Resistance in Rail Transit Under Impulse Voltage Excitation

李峰 ¹李景龙 ¹禹贤虎 ¹赵文彬 ¹李诗晨²

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作者信息

1. 上海电力大学,上海 200090
2. 上海申通地铁集团有限公司,上海 201103
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摘要

钢轨对排流网的过渡电阻是影响杂散电流的最主要因素.为了快速测量过渡电阻,根据钢轨中的波过程和快速傅里叶变换原理,提出了利用冲击电压源的新型测量方法.首先,基于ATP-EMTP软件搭建钢轨模型进行仿真,验证了冲击法的有效性;然后,结合现场实测钢轨对排流网过渡电阻的数据,进一步验证了冲击法的可靠性和准确性.

Abstract

The transition resistance of the rail to the discharge network is the most important factor affecting the stray current.In order to quickly measure the transition resistance,based on the fast Fourier transform and the wave process in the rail,a new measurement method using the impulse voltage source is proposed.Firstly,based on ATP-EMTP software,the rail model is constructed for simulation to verify the validity of the inrush method,and then combined with the field measurement of the transition resistance of the rail to the discharge network,the reliability and accuracy of the impulse method is further verified.

关键词

轨道交通/快速傅里叶变换/冲击电压/过渡电阻/ATP-EMTP软件/杂散电流

Key words

rail transit/fast Fourier transform/impulse votage/transition resistors/ATP-EMTP software/stray current

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出版年

2024

上海电力大学学报

上海电力学院

上海电力大学学报

影响因子：0.401

ISSN：2096-8299

参考文献量14

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