横风作用下弓网电弧动态特性的研究

孙传铭; 鲁超; 母婷佑; 张作钦; 杨泽锋

doi:10.13890/j.issn.1000-128X.2022.04.022

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横风作用下弓网电弧动态特性的研究

铁道电气化 | 更新时间：2024-08-02

- 横风作用下弓网电弧动态特性的研究
- Research on dynamic characteristics of pantograph arc under cross wind
- 机车电传动 2022年第4期页码：151-156
- 作者机构：
  
  中车青岛四方机车车辆股份有限公司，山东青岛 266111
  1.西南交通大学电气工程学院，四川成都 611756
  2.School of Electrical Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
- 作者简介：
  
  孙传铭（1981—），男，硕士，正高级工程师，主要从事高速动车组、牵引高压的研究； E-mail: sunchuanming@cqsf.com
- 基金信息：
  
  国家自然科学基金项目(U19A20105)
- DOI：10.13890/j.issn.1000-128X.2022.04.022
  中图分类号： U225.3
- 纸质出版日期：2022-07-10，
  
  收稿日期：2021-06-09，
  
  修回日期：2021-07-14，
- 稿件说明：
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孙传铭, 鲁超, 母婷佑, 等. 横风作用下弓网电弧动态特性的研究[J]. 机车电传动, 2022,(4):151-156.

SUN Chuanming, LU Chao, MU Tingyou, et al. Research on dynamic characteristics of pantograph arc under cross wind[J]. Electric drive for locomotives, 2022,(4):151-156.
孙传铭, 鲁超, 母婷佑, 等. 横风作用下弓网电弧动态特性的研究[J]. 机车电传动, 2022,(4):151-156. DOI： 10.13890/j.issn.1000-128X.2022.04.022.

SUN Chuanming, LU Chao, MU Tingyou, et al. Research on dynamic characteristics of pantograph arc under cross wind[J]. Electric drive for locomotives, 2022,(4):151-156. DOI： 10.13890/j.issn.1000-128X.2022.04.022.

摘要

弓网电弧已成为制约高速列车进一步发展的主要因素之一，深入研究弓网电弧特性对进一步分析弓网系统损伤特性、探寻弓网电弧的调控方法具有重要意义。结合接触线与受电弓滑板的实际磨损情况，建立横风作用下二维弓网电弧动态分析模型，研究弓网电弧动态特性的变化规律。结果表明：在外界横风的作用下，电弧弧柱弯曲、拉升，并伴有弧根跳跃的现象；在受电弓滑板磨损处形成明显的低风速区，当电弧弧根位置位于该低风速区时，弧根位移缓慢，电弧热量积聚，进一步加剧受电弓滑板磨损区域的损伤；正常接触线右圆弧表面存在低风速区，弧根在此处移动缓慢，热量累加，对接触线造成损伤；当接触线存在磨损，即接触线底部曲率减小时，表面弧根运动速度较快。接触线与受电弓滑板表面的磨损情况会影响电弧区域的流场分布，最终导致弧根位移距离和运动速度存在差异。

Abstract

The pantograph arc has become an important factor restricting the further development of high-speed trains. Therefore

in-depth research on the characteristics of pantograph arc is of great significance for further analyzing the damage characteristics of pantograph-catenary system and exploring the control method of pantograph arc. Combined with the actual wear of the contact wire and the pantograph strip

a two-dimensional dynamic analysis model of the pantograph arc under cross wind was established

the change rule of dynamic characteristics of the pantograph arc under the action of wind was studied. The results show that under the action of external wind

the arc column bends

pulls up

and is accompanied by the phenomenon of arc root jumping; the pantograph strip wears an obvious low wind speed zone. When the arc root is located in this low wind speed zone

the arc root displacement is slow and the arc heat accumulates

which will further aggravate the damage of the pantograph strip wear area; there is a low wind speed area on the right arc surface of the normal contact wire

where the arc root moves slowly

and the heat accumulates

causing damage to the contact wire; when there is wear on the contact wire

that is

the curvature of the bottom is reduced

the arc root of the surface moves faster. The wear of the contact wire and the surface of the pantograph strip will affect the flow field distribution in the arc area

and ultimately lead to differences in the arc root displacement distance and movement speed.

关键词

弓网电弧特性MHD模型弧根位移仿真高速列车接触网

Keywords

characteristics of pantograph arcMHD modelarc root displacementsimulationhigh-speed traincatenary

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