Study on Characteristics of Sliding Electrical Contact of Pantograph-catenary Under Fluctuating Pressure Load

CHEN Zhonghua; SUN Guojun; HUI Lichuan; SHI Guang

doi:10.13296/j.1001-1609.hva.2018.12.013

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Study on Characteristics of Sliding Electrical Contact of Pantograph-catenary Under Fluctuating Pressure Load

更新时间：2025-04-26

- Study on Characteristics of Sliding Electrical Contact of Pantograph-catenary Under Fluctuating Pressure Load
- High VoltageApparatus Vol. 54, Issue 12, Pages: 82-88(2018)
- 作者机构：
  
  辽宁工程技术大学
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.12.013
  CLC： U264.34;U225
- Published：2018
- 稿件说明：
移动端阅览
[1]陈忠华,孙国军,回立川,时光.波动压力载荷下弓网滑动电接触特性研究[J].高压电器,2018,54(12):82-88.

CHEN Zhonghua, SUN Guojun, HUI Lichuan, et al. Study on Characteristics of Sliding Electrical Contact of Pantograph-catenary Under Fluctuating Pressure Load[J]. High voltageapparatus, 2018, 54(12): 82-88.
[1]陈忠华,孙国军,回立川,时光.波动压力载荷下弓网滑动电接触特性研究[J].高压电器,2018,54(12):82-88. DOI： 10.13296/j.1001-1609.hva.2018.12.013.

CHEN Zhonghua, SUN Guojun, HUI Lichuan, et al. Study on Characteristics of Sliding Electrical Contact of Pantograph-catenary Under Fluctuating Pressure Load[J]. High voltageapparatus, 2018, 54(12): 82-88. DOI： 10.13296/j.1001-1609.hva.2018.12.013.

摘要

列车运行过程中的弓网压力载荷以类似正弦形式波动

波动载荷对弓网系统滑动电接触性能有显著影响。文中利用销盘式实验机模拟弓网系统接触圧力的波动状态

实验分析了在不同电流密度、运行速度的工况下

压力波动幅度和波动频率对弓网系统受流和磨损的影响机理。研究表明:压力载荷在波动状态下

压力波动幅度的增大和运行速度的增大都会导致载流效率降低和销试样的磨损率增大;电流密度的增大会导致磨损率增大和载流效率的先增后减;压力波动频率的变化对载流效率和销试样的磨损率影响不明显。电弧烧蚀和温度升高造成销表面粗糙是导致磨损率增大和载流效率降低的主要原因。压力波动幅度、运行速度和电流密度是影响弓网滑动电接触摩擦磨损和载流效率的主要因素。

Abstract

The pressure load of pantograph-catenary fluctuate in a similar sine in the process of train operation

which have a significant effect on sliding electrical contact properties of pantograph-catenary system.This article simulates the fluctuant state of the contact pressure of pantograph-catenary system by use of the pin-on-disk experiment machine

studies the influence mechanism of amplitude and frequency of fluctuating load on current collection and wear of pantograph-catenary system at different current densities or operating speeds.Study show that:when the pressure is in a fluctuation state

the current-carrying efficiency decreases and the wear rate of pin increases with the increase of speed or amplitude of fluctuating load;the wear rate increases and the current-carrying efficiency decreases after an initial increases with the increase of current density;the effect of frequency of fluctuating on the current-carrying efficiency and wear is not obvious.Roughness of pin surface caused by arc erosion and temperature rise is main reasons for decrease of current-carrying efficiency and increase of wear rate.The amplitude of fluctuating load

speed and current density is main influencing factors of wear and current-carrying efficiency of sliding electrical contact properties of pantograph-catenary system.

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