南京地铁1号线轨电位异常的抑制方法  

Research on the Control of Abnormal Rail Potential for Nanjing Metro Line 1

作　　者：宋奇吼[1] 杨飏[1] 童岩峰[1] 潘世航 SONG Qihou;YANG Yang;TONG Yanfeng;PAN Shihang(Nanjing Institute of Railway Technology,210031,Nanjing,China)

机构地区：[1]南京铁道职业技术学院,南京教授210031

出　　处：《城市轨道交通研究》2018年第4期114-118,147,共6页Urban Mass Transit

基　　金：江苏省轨道交通工程研发中心开放基金资助项目(KFJ201506);江苏省高等职业院校专业带头人高端研修资助项目(2016TDFX005);江苏省高等学校大学生创新创业训练计划(201613106023);江苏省高校"青蓝工程"资助项目(RC17101)

摘　　要：在地铁回流系统中,参数异常及电动车组起动均易引起轨电位异常升高,从而导致轨电位限制装置动作。针对南京地铁1号线红山—迈皋桥区段出现频繁的轨电位异常,实时采集和分析了不同工况下红山—迈皋桥区段的轨电位和电流,并通过Matlab/simulink软件搭建了该区段的仿真系统简化模型,提出了采用并联分流电缆的方式来降低其轨电位的方案。在简化模型下进行仿真的结果表明,所提方案能够有效降低红山—迈皋桥区段轨电位的大小,具有一定的可行性。In subway return system,abnormal parameters and EMU starting often cause abnormal rail potential elevation,leading to the operation of rail potential limiting equipment.According to the frequent rail potential anomalies happened on the section between Redhill and Maigaoqiao on Nanjing metro Line 1,the real-time potential and current in different conditions are collected and analyzed,Matlab/simulink software is used to build a simplified model of simulation system,a method that adopts parallel shunt cable is proposed to reduce the potential of rail solutions.The simulation results show that the scheme can effectively reduce the size of rail potential,proves to have a certain effectiveness and feasibility.

关 键 词：南京地铁 牵引回流系统 轨电位 

分 类 号：U284.26[交通运输工程—交通信息工程及控制]