Multi-field coupling modeling and temperature rise analysis for the static pantograph-catenary electrical contact of metro trains

BI Yonglei; WU Aizhong; WENG Lin

doi:10.13890/j.issn.1000-128X.2023.01.018

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Multi-field coupling modeling and temperature rise analysis for the static pantograph-catenary electrical contact of metro trains

Electric Traction and Control | 更新时间：2024-08-02

- Multi-field coupling modeling and temperature rise analysis for the static pantograph-catenary electrical contact of metro trains
- Electric Drive for Locomotives Issue 1, Pages: 138-143(2023)
- 作者机构：
  
  1.上海工程技术大学城市轨道交通学院，上海　　201620
  2.上海市轨道交通振动与噪声控制技术工程研究中心，上海;201620
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2023.01.018
  CLC： U231
- Published：10 January 2023，
  
  Received：26 July 2022，
  
  Revised：12 December 2022，
- 稿件说明：
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闭永雷, 吴爱中, 翁琳. 地铁车辆弓网静态电接触的多场耦合模型及温升分析[J]. 机车电传动, 2023(1): 138-143.

BI Yonglei, WU Aizhong, WENG Lin. Multi-field coupling modeling and temperature rise analysis for the static pantograph-catenary electrical contact of metro trains[J]. Electric Drive for Locomotives, 2023(1): 138-143.
闭永雷, 吴爱中, 翁琳. 地铁车辆弓网静态电接触的多场耦合模型及温升分析[J]. 机车电传动, 2023(1): 138-143. DOI： 10.13890/j.issn.1000-128X.2023.01.018.

BI Yonglei, WU Aizhong, WENG Lin. Multi-field coupling modeling and temperature rise analysis for the static pantograph-catenary electrical contact of metro trains[J]. Electric Drive for Locomotives, 2023(1): 138-143. DOI： 10.13890/j.issn.1000-128X.2023.01.018.

摘要

当地铁到站或在线路上因故临时停车时，接触网仍需为列车提供电流，此时弓网接触部件因处于静止状态而存在局部过热的情况，严重时可能导致滑板热损伤甚至造成接触线断线事故。因此，地铁停车期间弓网电接触的温升研究具有重要意义。地铁列车弓网接触是热、力、电多物理场耦合的复杂行为，而弓网接触力、滑板热导率和接触线截面形状对弓网电接触有重要影响。本文针对受电弓滑板与接触线静态取流的工况，研究了接触电阻和接触热导的变化规律与建模方法，建立了热-力-电耦合的三维有限元分析模型，分析弓网接触力、滑板材料热传导率以及接触线磨耗对接触温升的影响。结果显示，增大弓网接触力、选用高热导率的滑板材料和改良接触线截面轮廓均可降低弓网接触温升。研究结果对接触线结构优化、滑板材料的选取及保障列车安全运行有重要参考价值。

Abstract

Since the catenary still needs to supply current for the trains stopping at stations or stopping temporarily on the track for some reasons

the pantograph-catenary contact part in a stationary state may suffer from overheat

which may lead to a thermal damage of the contact strip and even cause a catenary breakage accident. Therefore

the study on the temperature rise at the pantograph-catenary electrical contact during stopping of metro trains is of great importance. The pantograph-catenary contact is a very complex interaction of multi-physical field coupling including thermal

mechanical and electrical behaviors

and the contact force

thermal conductivity of the contact strip and sectional shape of the contact wire have an important impact on the pantograph-catenary electrical contact. In this study

the change rules of contact resistance and thermal contact conductance

and the modeling approach were explored for the static current condition of the contact strip and contact wire; a three-dimensional finite element model was established for the thermal-mechanical-electrical coupling; the effects of pantograph-catenary contact force

thermal conductivity of the contact strip and wear of contact wire to contact temperature rise was studied. The results show that the pantograph-catenary contact temperature rise can be reduced by increasing the contact force

selecting the strip material with a high thermal conductivity and improving the sectional shape of contact wire. The study results may be used as reference for the structural optimization of contact wire

selection of strip materials and guarantee of trains safe operation.

关键词

地铁车辆弓网系统电接触多场耦合温升分析接触电阻

Keywords

metro vehiclepantograph-catenary systemelectrical contactmulti-field couplingtemperature rise analysiscontact resistance

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