地铁车辆段杂散电流分析与防护方案

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Abstract One-way conduction devices are widely used to reduce the stray current in the depot, but the problem of stray current in the depot is still prominent. In this paper, the main line segment and the depot are modeled and simulated. The relationship between the locomotive flow and time is obtained through the locomotive traction calculation, and the locomotive flow is brought into the resistance network model at the one-way conduction device to simulate the locomotive in different working conditions. The influence of voltage, current and stray current is analyzed, and the causes of stray current in the depot are analyzed. For these reasons, the traditional one-way conduction device is optimized and improved, and high-power integrated gate-commutated thyristor (IGCT) is used as the new intelligent one-way conduction device control device. While satisfying the complex operating environment of the subway, the reliability of the one-way conduction device is greatly improved, and the stray current of the depot is greatly reduced.

Key words： urban rail transit depot one-way conduction device stray current protection

Received: 31 August 2022

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	JIN Wenhui

Cite this article:

JIN Wenhui. Analysis and protection scheme of stray current in subway depot[J]. Electrical Engineering, 2023, 24(2): 11-17.

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http://dqjs.cesmedia.cn/EN/Y2023/V24/I2/11

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