市域(郊)铁路交流25kV供电制式对计轴的影响及抗干扰分析  

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

作　　者：刘军 梁东泽 卢佳 周乾 Liu Jun;Liang Dongze;Lu Jia;Zhou Qian(Ningbo Shiyu Railway Investment Development Co.,Ltd.,Ningbo 315000,China;CRSC Research&Design Institute Group Co.,Ltd.,Beijing 100070,China)

机构地区：[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

出　　处：《铁路通信信号工程技术》2024年第9期79-84,共6页Railway Signalling & Communication Engineering

基　　金：浙江省自然科学基金项目(LTGG23E080005)。

摘　　要：市域(郊)铁路采用交流25 kV供电制式替代直流750 V/1500 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。Urban(suburban)railways use the AC 25 kV power supply system instead of DC 750 V/1500 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.

关 键 词：市域(郊)轨道交通 交流25 kV供电制式 计轴 

分 类 号：U284.47[交通运输工程—交通信息工程及控制]