站内工况下降弓电弧特性的仿真研究*

doi:10.16628/j.cnki.2095-8188.2020.01.003

电器与能效管理技术 ›› 2020, Vol. 586 ›› Issue (1): 17-23.doi: 10.16628/j.cnki.2095-8188.2020.01.003

站内工况下降弓电弧特性的仿真研究^*

高国强¹, 李成坤¹, 魏文赋¹, 杨泽峰¹, 陈少昆¹, 段绪伟¹, 朱约辉², 廖仕明², 陶桂东³

1.西南交通大学电气工程学院, 四川成都 611756;
2.苏州东南佳新材料股份有限公司, 江苏苏州 215000;
3.中车青岛四方机车车辆股份有限公司, 山东青岛 266000

收稿日期:2019-10-01 出版日期:2020-01-15 发布日期:2020-03-26
作者简介:高国强(1981—),男, 教授, 研究方向为高速铁路受流与回流。李成坤(1994—),男,硕士研究生,研究方向为电弧与电接触。魏文赋(1987—),男,讲师,研究方向为电弧与等离子体。
基金资助:
* 国家自然科学基金(51577158、51607147); 国家轨道交通电气化与自动化工程技术研究中心开放课题(NEEC-2017-B10)

Simulation Research of Arc Characteristics Under Lowering Pantograph in Railway Station

GAO Guoqiang¹, LI Chengkun¹, WEI Wenfu¹, Yang Zefeng¹, CHEN shaokun¹, DUAN Xuwei¹, ZHU Yuehui², LIAO Shiming², TAO Guidong³

1.School of Electrical Engineering,Southwest Jiaotong University, Chengdu 611756, China;
2.Suzhou Doneka New Materials Co.,Ltd., Suzhou 215000, China;
3.CRRC Qingdao Sifang Co.,Ltd., Qingdao 266000, China

Received:2019-10-01 Online:2020-01-15 Published:2020-03-26

摘要/Abstract

摘要： 列车驶入站内要进行降弓操作,由于降弓电弧弧根在弓网电极表面停滞,所以对弓网系统材料的侵蚀尤为显著。基于磁流体动力学建立电弧模型,研究降弓速度与自然风速对降弓电弧的影响。研究结果表明:降弓速度与自然风速对于降弓电弧的温度影响程度较小。随着降弓速度和自然风速的增加,电弧弧长、电弧电压均逐渐增大,电弧电压-时间变化率呈现近线性增长,电弧电压-弧长变化率基本不变。自然风速对电弧弧长以及电弧电压的影响更显著,加快降弓速度、加装吹弧装置可减少电弧持续时间,有效减轻电弧对弓网系统材料的侵蚀。

关键词: 弓网电弧, 降弓速度, 自然风速, 电弧电压

Abstract: Lowering pantograph operation would be taken when locomotive pulls into railway station.Arc caused by lowering pantograph operation would severely ablate pantograph catenary materials due to the arc root stagnating at the surface of pantograph catenary electrodes.The arc simulation model is established based on the magnetohydrodynamics (MHD) to study the effects of lowering pantograph speed and natural wind velocity on the characteristics of arc.The results show that the lowering pantograph speed and natural wind velocity have a relatively weak impact on the temperature distribution of arc.As lowering pantograph speed and natural wind velocity rise,both arc length and arc voltage increase gradually,the derivative of arc voltage with respect to time dU/dt presents an approximately linear increase,while the derivative of arc voltage with respect to arc length dU/ds keeps constant.The natural wind velocity has a larger impact on arc length and arc voltage than the lowering pantograph speed.In order to reduce pantograph catenary material erosion,arc duration could be shorten by increasing lowering pantograph speed and installing arc blow equipment.

Key words: pantograph catenary arc, lowering pantograph speed, natural wind velocity, arc voltage

中图分类号:

TM501.2

高国强, 李成坤, 魏文赋, 杨泽峰, 陈少昆, 段绪伟, 朱约辉, 廖仕明, 陶桂东. 站内工况下降弓电弧特性的仿真研究^*[J]. 电器与能效管理技术, 2020, 586(1): 17-23.

GAO Guoqiang, LI Chengkun, WEI Wenfu, Yang Zefeng, CHEN shaokun, DUAN Xuwei, ZHU Yuehui, LIAO Shiming, TAO Guidong. Simulation Research of Arc Characteristics Under Lowering Pantograph in Railway Station[J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 586(1): 17-23.

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站内工况下降弓电弧特性的仿真研究^*

Simulation Research of Arc Characteristics Under Lowering Pantograph in Railway Station

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