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Open Access

Design and verification of an improved experimental platform for stray current in urban rail transit

Yaning LI1( )Hong KANG1Ye WANG2Wenfei LI1Meng JIAO1Wencai ZHANG1
School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
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Abstract

With the rapid development of urban rail transit, there have been an urgent problem of excessive stray current. Because the stray current distribution is random and difficult to verify in the field, we designed an improved stray current experimental platform by replacing the simulated aqueous solution with a real soil environment and by calculating the transition resistance by measuring the soil resistivity, which makes up for the defects in the previous references. Firstly, the mathematical models of rail-drainage net and rail-drainage net-ground were established, and the analytical expressions of current and voltage of rail, drainage net and other structures were derived. In addition, the simulation model was built, and the mathematical analysis results were compared with the simulation results. Secondly, the accuracy of the improved stray current experimental platform was verified by comparing the measured and simulation results. Finally, based on the experimental results, the influence factors of stray current were analyzed. The relevant conclusions provide experimental data and theoretical reference for the study of stray current in urban rail transit.

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Journal of Measurement Science and Instrumentation
Pages 379-386
Cite this article:
LI Y, KANG H, WANG Y, et al. Design and verification of an improved experimental platform for stray current in urban rail transit. Journal of Measurement Science and Instrumentation, 2024, 15(3): 379-386. https://doi.org/10.62756/jmsi.1674-8042.2024039

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Received: 03 October 2023
Revised: 18 December 2023
Accepted: 04 January 2024
Published: 30 September 2024
© The Author(s) 2024.

The articles published in this open access journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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