城市轨道交通场段杂散电流防护实测分析与优化方案  

Test Analysis and Optimization Scheme for Stray Current Protection in Yards and Sections of Urban Rail Transportation

作　　者：陈辉 黄国辉 CHEN Hui;HUANG Guohui

机构地区：[1]成都轨道交通集团有限公司

出　　处：《电气化铁道》2024年第1期69-74,78,共7页Electric Railway

摘　　要：城市轨道交通正线杂散电流泄漏后在场段收集,再通过场段单向导通装置流回正线。常规单向导通装置能有效减轻杂散电流腐蚀轨道周围建筑及设施的影响,但单向导通装置频繁导通也带来场段与正线杂散电流互相影响和设备打火现象。为隔绝杂散电流流通路径,提出响应式智能导通装置方案,并结合实际线路实施情况进行测试。测试结果显示:采用响应式智能导通装置方案,场段咽喉区连接装置平均导通时间降低97.8%,阻断了正线杂散电流及钢轨电位侵入场段的路径,效果显著。The stray current of mainline of urban rail transit is collected in the yards and sections after leakage and then flows back to the mainline through unidirectional conduction devices in the yards and sections.The conventional unidirectional conduction device is able to effectively reduce the influence to the buildings and facilities around the track caused by the stray current corrosion,however,its frequent conduction also brings either the mutual interaction of stray current between yard/section and mainline or the equipment ignition.In order to isolate the flow path of stray current,a scheme of responsive intelligent conduction device is put forward and tests are made for it on the actual line for its execution.The test results show that the average conduction time is reduced by 97.8%for the connecting device in throats of yard and section and the path by which the stray current of mainline and rail potential flowing into the yard and section obstructed effectively after execution of responsive intelligent conduction scheme.

关 键 词：单向导通装置 杂散电流 测试分析 响应式智能导通装置 

分 类 号：U231.8[交通运输工程—道路与铁道工程]