Study on Dynamic Contact Resistance of Pantograph Catenary Under Fluctuating Load

CHEN Zhonghua; WANG Yifan; YANG Caihong; SHI Guang; HUI Lichuan

doi:10.13296/j.1001-1609.hva.2019.10.025

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Study on Dynamic Contact Resistance of Pantograph Catenary Under Fluctuating Load

更新时间：2025-04-26

- Study on Dynamic Contact Resistance of Pantograph Catenary Under Fluctuating Load
- High VoltageApparatus Vol. 55, Issue 10, Pages: 148-155+163(2019)
- 作者机构：
  
  1. 辽宁工程技术大学电气与控制工程学院
  2. 国网河南省电力公司濮阳供电公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.10.025
  CLC： U264.34;U225
- Published：2019
- 稿件说明：
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[1]陈忠华,王一帆,杨彩红,时光,回立川.波动载荷下弓网动态接触电阻特性研究[J].高压电器,2019,55(10):148-155+163.

CHEN Zhonghua, WANG Yifan, YANG Caihong, et al. Study on Dynamic Contact Resistance of Pantograph Catenary Under Fluctuating Load[J]. High voltageapparatus, 2019, 55(10): 148-155+163.
[1]陈忠华,王一帆,杨彩红,时光,回立川.波动载荷下弓网动态接触电阻特性研究[J].高压电器,2019,55(10):148-155+163. DOI： 10.13296/j.1001-1609.hva.2019.10.025.

CHEN Zhonghua, WANG Yifan, YANG Caihong, et al. Study on Dynamic Contact Resistance of Pantograph Catenary Under Fluctuating Load[J]. High voltageapparatus, 2019, 55(10): 148-155+163. DOI： 10.13296/j.1001-1609.hva.2019.10.025.

摘要

在实际的列车运行过程中压力载荷是以正弦形式波动变化

波动载荷对弓网系统中的接触电阻特性有重要影响。文中利用销盘式高速载流摩擦磨损实验机模拟弓网系统中的压力波动状态

研究了波动载荷、滑动速度和接触电流对动态接触电阻特性的影响

结合表面形貌对其变化规律产生的原因进行了分析。结果表明:载流滑动接触且压力波动频率一定时

动态接触电阻随压力波动幅度的增大先减小后增大;压力波动幅度一定时

动态接触电阻随压力波动频率的增大而缓慢增大;波动载荷条件下

动态接触电阻随滑动速度的增大而逐渐增大

随接触电流的增大而逐渐减小。高温电弧和接触温升是导致动态接触电阻变化的主要原因。

Abstract

In the actual train operation

the pressure load fluctuates in sine form

and the fluctuating load has an important influence on contact resistance characteristics in pantograph catenary system.In this paper

the pressure fluctuation in the pantograph catenary system is simulated by a pin disk high speed current borne friction and wear tester

the influence of different factors on the dynamic contact resistance is studied and combining with the surface morphology

the causes of its variation regulation are analyzed. The experimental results show that when the current carrying sliding contact and pressure fluctuation frequency are definitized

the dynamic contact resistance decreases first and then increases with the increase of pressure fluctuation range; when the pressure fluctuation range is definitized

the dynamic contact resistance increases slowly with the increase of pressure fluctuation frequency. Under the condition of fluctuating load

dynamic contact resistance increases with the increase of sliding velocity

decreases with the increase of contact current.High temperature arc and contact temperature rise are the main causes of dynamic contact resistance change.

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