Measurement and suppression technology of induced voltage generated by traction system in rail transit applications

LIU Songlin; ZHU Bingquan; WANG Tao; YUAN Keliang

doi:10.13890/j.issn.1000-128X.2024.04.006

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Measurement and suppression technology of induced voltage generated by traction system in rail transit applications

Converting Basic Technology Column | 更新时间：2024-09-12

- Measurement and suppression technology of induced voltage generated by traction system in rail transit applications
- Electric Drive for Locomotives Issue 4, Pages: 51-58(2024)
- 作者机构：
  
  中车株洲电力机车研究所有限公司，湖南株洲 412001
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2024.04.006
  CLC： U231
- Published：10 July 2024，
  
  Received：10 January 2024，
  
  Revised：27 June 2024，
- 稿件说明：
移动端阅览
刘松林, 朱柄全, 王涛, 等. 轨道交通牵引系统感应电压测试与抑制技术[J]. 机车电传动, 2024(4): 51-58.

LIU Songlin, ZHU Bingquan, WANG Tao, et al. Measurement and suppression technology of induced voltage generated by traction system in rail transit applications[J]. Electric drive for locomotives,2024(4): 51-58.
刘松林, 朱柄全, 王涛, 等. 轨道交通牵引系统感应电压测试与抑制技术[J]. 机车电传动, 2024(4): 51-58. DOI：10.13890/j.issn.1000-128X.2024.04.006.

LIU Songlin, ZHU Bingquan, WANG Tao, et al. Measurement and suppression technology of induced voltage generated by traction system in rail transit applications[J]. Electric drive for locomotives,2024(4): 51-58. DOI：10.13890/j.issn.1000-128X.2024.04.006.

摘要

为了解决轨道交通列车牵引系统对轨道电路的感应干扰问题，文章深入分析了列车牵引系统基于感应耦合对轨道电路产生的干扰作用机制，根据地铁直流牵引系统的真实布局布线首次在国内实验室搭建了一套1:1还原的牵引系统感应电压测试平台，通过在实验室静态条件下模拟车辆牵引系统对轨道电路接收端产生的瞬态感应干扰，研究了牵引系统在不同运行工况以及与轨道电路在不同相对位置条件下，各种干扰部件及耦合环路对轨道电路产生的感应电压水平，确定了电阻制动时直流斩波器与制动电阻所形成的耦合回路是地铁直流牵引系统对地面轨道电路系统的最大感应干扰源。通过分析牵引系统感应发射频谱特性与斩波IGBT开关频率的关系，采用频谱管理的方法对牵引系统感应发射特征频率进行重新分配，进而错开轨道电路的工作敏感频段。试验结果表明，这种感应干扰抑制策略可有效降低车辆牵引系统对轨道电路造成的感应干扰风险。

Abstract

This paper focuses on mitigating inductive interference caused by the traction systems of rail transit trains on track circuits. The initial analysis explored the interference mechanisms through inductive coupling. Based on the real layout and wiring of DC traction systems in metro applications

a 1:1-scale induced voltage testing platform for traction systems was built

as the first of its kind in domestic laboratories. This platform was employed to simulate transient inductive interference generated by train traction systems at the receiving end of track circuits under static laboratory conditions. These simulations revealed the induced voltage levels produced by different interfering components and coupling loops on track circuits

under different operating conditions of the traction systems and various relative positions of the track circuits. Moreover

the coupling circuit formed by the DC chopper and braking resistor during resistance braking was identified the maximum source of inductive interference from metro DC traction systems affecting track circuit systems. Additionally

by analyzing the relationship between the spectrum characteristics of induced emissions from the traction systems and the IGBT switching frequencies for chopping

a spectrum management method was adopted to reassign induced emissions characteristic frequencies of traction systems

resulting in staggered sensitive frequency bands for the track circuits. The experimental results demonstrate the effectiveness of the proposed inductive interference suppression strategy in reducing the risk of inductive interference caused by train traction systems on the track circuits.

关键词

牵引系统轨道电路感应电压直流斩波器频谱管理

Keywords

traction systemtrack circuitinduced voltageDC chopperspectrum management

references

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