Influences of Pantograph-catenary Arc on Traction Drive System Under Low Air Pressure

ZOU Dandan; XIA Zixin; ZHANG Zelun; WEI Wenfu

doi:10.13334/j.0258-8013.pcsee.242317

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Influences of Pantograph-catenary Arc on Traction Drive System Under Low Air Pressure

更新时间：2026-10-12

- Influences of Pantograph-catenary Arc on Traction Drive System Under Low Air Pressure
- Vol. 46, Issue 4, Pages: 1708-1716(2026)
- 作者机构：
  
  1. 华东交通大学电气与自动化工程学院,江西省,南昌市,330013
  2. 西南交通大学电气工程学院,四川省,成都市,610031
- 作者简介：
- 基金信息：
- DOI：10.13334/j.0258-8013.pcsee.242317
  CLC：
- Published：2026
- 稿件说明：
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ZOU Dandan, XIA Zixin, ZHANG Zelun, et al. Influences of Pantograph-catenary Arc on Traction Drive System Under Low Air Pressure[J]. 2026, 46(4): 1708-1716.
DOI：

ZOU Dandan, XIA Zixin, ZHANG Zelun, et al. Influences of Pantograph-catenary Arc on Traction Drive System Under Low Air Pressure[J]. 2026, 46(4): 1708-1716. DOI： 10.13334/j.0258-8013.pcsee.242317.

摘要

弓网电弧是弓网系统常见的电气故障，会严重影响列车牵引传动系统稳定运行。与平原地区相比，高海拔低气压环境下弓网电弧电气特性会发生改变，对列车牵引传动系统的影响也可能存在差异。该文考虑了高速列车在低气压环境运行时弓网电弧电气参数的改变，建立弓网电弧-牵引传动系统联合模型，研究了川藏线不同气压等级下弓网电弧对牵引传动系统电压特性和谐波分布的影响。结果表明

气压越低，弓网电弧对牵引传动系统的影响越大；从电压看，短时间离线时，车载变压器高压侧电压过零点处发生电压跌落、波形畸变，气压越低，电压跌落、波形畸变越严重。长时间离线时，熄弧后车载变压器产生过电压，气压越低，过电压越大。直流侧电压在熄弧后快速降为零，气压越低，下降速度越慢，并在离线恢复过程中产生过电压；从谐波看，同一阶段，气压越低，总谐波畸变率越大。该研究可为高原铁路电气化列车的设计提供一定参考。

Abstract

Pantograph-catenary arc is a common fault that can significantly disrupt the stable operation of traction drive system. In high-altitude environments with low air pressure

the electrical characteristics of pantograph-catenary arc differ from those in plains

potentially affecting the system in a different manner. This paper models the pantograph-catenary arc-traction drive system and examines the influence of arc on voltage and harmonic characteristics under different pressures. The results show that lower air pressure increases the impact; short offline periods lead to more severe voltage drops and waveform distortions

while longer offline periods result in larger overvoltages. DC-side voltage drops more slowly after arc quenching

with increased harmonic distortion as pressure decreases. This study provides a valuable reference for the design of electrified trains operating on high-altitude routes.

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