Analysis of Impacts of AC 25 kV Power Supply System on Axle Counter Equipment and Anti-Interference Measures for Urban (Suburban) Railways

doi:10.3969/j.issn.1673-4440.2024.09.013

Railway Signalling & Communication Engineering ›› 2024, Vol. 21 ›› Issue (9): 79-84.DOI: 10.3969/j.issn.1673-4440.2024.09.013

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Analysis of Impacts of AC 25 kV Power Supply System on Axle Counter Equipment and Anti-Interference Measures for Urban (Suburban) Railways

Liu Jun¹, Liang Dongze², Lu Jia¹, Zhou Qian¹

1. Ningbo Shiyu Railway Investment Development Co., Ltd., Ningbo 315000，China;
2. CRSC Research & Design Institute Group Co., Ltd., Beijing 100070, China

Received:2023-08-31 Revised:2024-07-11 Online:2024-09-25 Published:2024-09-25

市域（郊）铁路交流25 kV供电制式对计轴的影响及抗干扰分析

刘军¹，梁东泽²，卢佳¹，周乾¹

1．宁波市市域铁路投资发展有限公司，浙江宁波 315000；
2．北京全路通信信号研究设计院集团有限公司，北京 100070

作者简介:刘军（1993—），男，工程师，本科，主要研究方向：轨道交通信号系统，邮箱：1225390024@qq.com。
基金资助:
浙江省自然科学基金项目（LTGG23E080005）

Abstract

Abstract: Urban (suburban) railways use the AC 25 kV power supply system instead of DC 750 V/1 500 V, to meet the construction requirements of high transmission capacity, high speed, and low loss. However, the change of power supply system will cause electromagnetic interference to such trackside equipment of the signaling system as axle counter. This paper examines the interference sources of the 25 kV power supply system and the working principles of mainstream axle counters, and analyzes how to protect the axle counters from interference through internal and external measures.

Key words: urban (suburban) rail transport, AC 25 kV power supply system, axle counter

摘要： 市域（郊）铁路采用交流25 kV供电制式替代直流750 V/1 500 V可以满足其高输送能力、高速度、低损耗的建设需求，但供电制式的改变，会对计轴等信号系统轨旁设备产生电磁干扰。结合25 kV供电制式干扰源以及主流计轴工作原理，分析如何从计轴设备本身及外部措施规避计轴受扰情况。

关键词: 市域（郊）轨道交通, 交流25?kV供电制式, 计轴

CLC Number:

U284.47

Liu Jun, Liang Dongze, Lu Jia, Zhou Qian. Analysis of Impacts of AC 25 kV Power Supply System on Axle Counter Equipment and Anti-Interference Measures for Urban (Suburban) Railways[J]. Railway Signalling & Communication Engineering, 2024, 21(9): 79-84.

刘军, 梁东泽, 卢佳, 周乾. 市域（郊）铁路交流25 kV供电制式对计轴的影响及抗干扰分析[J]. 铁路通信信号工程技术, 2024, 21(9): 79-84.

Figures/Tables 5

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Analysis of Impacts of AC 25 kV Power Supply System on Axle Counter Equipment and Anti-Interference Measures for Urban (Suburban) Railways

市域（郊）铁路交流25 kV供电制式对计轴的影响及抗干扰分析

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