跨座式单轨车辆电击防护研究  

Study on Electric Shock Protection of Rolling Stocks for Straddle Type Monorail

作　　者：尹治强 张锐 YIN Zhiqiang;ZHANG Rui

机构地区：[1]重庆市轨道交通(集团)有限公司

出　　处：《电气化铁道》2025年第1期79-84,87,共7页Electric Railway

摘　　要：为研究跨座式单轨交通是否存在车辆电击隐患,从车辆电击防护角度给出防护优化方案。依据相关标准,结合运营线路设备情况计算车体与站台间安全电压限值。通过建模仿真分析牵引变电所接地漏电保护(64D)装置电流分布特点,结合故障实测数据修正,总结出单轨系统最大漏电电流近似计算式,进而推导出车体与站台间漏电电压值。通过对比安全电压限值与漏电电压值,了解车辆在某些故障工况下存在电击隐患。最后对车辆电击隐患提出具体防护优化方案,经验算可满足电击防护要求。In order to investigate whether there is a risk of electric shock on rolling stocks for straddle type monorail transportation,an optimized protection scheme is put forward from the perspective of electric shock protection of rolling stocks.The safe voltage limit between the rolling stock body and the platform is calculated according to the relevant standards with reference of conditions of equipment of the line.Through modeling and simulation analysis of the current distribution characteristics of the grounding leakage protection(64D)device in the traction substation,combined with fault measurement data correction,an approximate calculation formula for the maximum leakage current of the monorail system is summarized,and the leakage voltage value between the vehicle body and the platform is derived.By comparing the safety voltage limit with the leakage voltage value,the risk of electric shock on rolling stocks under certain fault conditions is mastered.Finally,specific protection optimization schemes are put forward for potential risks of electric shock on rolling stocks,and empirical calculations show that they can meet the requirements for electric shock protection.

关 键 词：跨座式单轨 车辆漏电 接地装置 电击隐患 电击防护 

分 类 号：U232[交通运输工程—道路与铁道工程]