Analysis of Influence of Steel Bar on Mutual Impedance of Adjacent Railway Tracks in High-speed Railway Platform

被引：0

作者：

Yang Y. ^{[1
]}

Liu S. ^{[2
]}

Zou J. ^{[3
]}

Zhang M. ^{[4
]}

机构：

[1] School of Traffic and Transportation, Shijiazhuang Tiedao University, Shijiazhuang

[2] Hebei Key Laboratory for Electromagnetic Environmental Effects and Information Processing, Shijiazhuang Tiedao University, Shijiazhuang

[3] Department of Electrical Engineering, Tsinghua University, Beijing

[4] CRSC Research & Design Institute Group Co., Ltd., Beijing

来源：

Tiedao Xuebao/Journal of the China Railway Society | 2023年 / 45卷 / 07期

关键词：

adjacent line interference; mutual impedance; platform; steel bars; track circuit;

D O I：

10.3969/j.issn.1001-8360.2023.07.011

中图分类号：

学科分类号：

摘要：

The protection against the electromagnetic signal interference in the track circuit of adjacent lines is required for safe train operation control in high-speed rail stations. The mutual impedance between lines is a significant parameter in the study of interference in the track circuit of adjacent lines. In this article, a theoretical study was conducted on the severe engineering problem of interference in the track circuit of adjacent lines in the high-speed rail stations. The electromagnetic environment impact caused by the difference in the steel bars of the platform infrastructure was quantitatively analyzed. The mathematical expression for mutual impedance of interference in the track circuit of adjacent lines was derived, while the factors affecting the magnitude of the mutual impedance were simulated and analyzed. The mutual impedance between two track circuits was tested on-site in a high-speed rail station. Both the simulation analysis results and the on-site measurement show that the presence of steel bars in the platform increases the mutual impedance between adjacent tracks, and the increase in mutual impedance increases with the increase of the working frequency. © 2023 Science Press. All rights reserved.

引用

页码：92 / 98

页数：6

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