工频谐波对机车信号干扰问题的分析与处置  

Analysis and Disposal of Power Frequency Harmonic Interference to Locomotive Signal

作　　者：邵嘉声 SHAO Jiasheng(China Railway Construction Electrification Bureau Group Co.Ltd.,Beijing 100043,China)

机构地区：[1]中国铁建电气化局集团有限公司,北京100043

出　　处：《铁道建筑技术》2022年第9期216-219,共4页Railway Construction Technology

基　　金：中国铁建股份有限公司科技研发计划项目(2022-C34)。

摘　　要：随着高速铁路的广泛建设和快速发展,电力机车、车站环境和供电电缆系统越来越复杂,对轨道电路和机车信号的干扰也越来越大,准确识别干扰源已成为交通运行中的一大难题。以实际案例为重点,通过对自干扰源的调查和模拟不同的测试场景来探讨故障源;通过对正馈线和PW线在不同场景下的工况测试分析,确定了实际的工频谐波干扰故障来源;并提出有针对性的解决方案,以期为今后正确处理类似的现场问题提供参考。With the extensive construction and rapid development of high-speed railways, there are increasingly complex electric locomotives, station environments and power supply cable systems, accompanied by greater interference to track circuits and locomotive signals. The accurate identification of interference sources has become a major challenge in traffic operations. Focusing on practical cases, this paper probes into the fault sources by investigating self-interference sources and simulating different scenarios for testing. Through tests and analyses of the working condition of the positive feeder and PW line in different scenarios, the actual source of power-frequency harmonic interference fault is identified. Targeted solutions are then proposed, with a view to providing references for the proper handling of similar field problems in the future.

关 键 词：轨道电路 供电电缆 机车信号 工频干扰 

分 类 号：U223.63[交通运输工程—道路与铁道工程]