侯月铁路故障测距误差分析及应对策略  

Analysis on Fault Location Errors of Houma-Yueshan Railway and Related Countermeasures

作　　者：葛海波 张骞 曹裕捷 GE Haibo;ZHANG Qian;CAO Yujie

机构地区：[1]成都交大许继电气有限责任公司 [2]中国铁路太原局集团有限公司侯马北供电段

出　　处：《电气化铁道》2024年第3期23-26,共4页Electric Railway

基　　金：中国铁路太原局集团有限公司2022年度科技研究开发计划课题“侯月铁路高精度故障测距装置的研制”(2022GD07)。

摘　　要：侯月铁路采用末端并联AT供电方式,故障测距受供电臂长度、运行方式和电力机车等因素影响较大。通过分析测距装置采样误差与供电臂长度关系、电力机车零压保护对测距电流影响以及不同故障类型下变电所馈线电流特征,提出了在供电区间增加并联点、根据故障波形特征提取故障电流和采用吸上电流特征判断故障类型等多项改进措施,提高了故障测距精度和故障类型识别准确度。The Houma-Yueshan railway adopts a terminal parallel AT power supply mode,and fault location is greatly affected by factors of the length of power feeding sections,operation modes and electric locomotives.After analyzing of the relations between the fault location sampling error and the length of power feeding section,influence to the fault location current caused by the zero voltage protection of electric locomotive as well as the current characteristics of the substation feeders under different types of faults,multiple measures,such as adding parallel points in the power feeding section,extracting fault current based on the fault waveform characteristics and judging the types of faults by means of suction current,have been proposed,improving the accuracy of fault location and identification correctness of fault types.

关 键 词：测距误差 零压保护 故障类型识别 吸上电流 

分 类 号：U226.8[交通运输工程—道路与铁道工程]