Research on High-voltage Side Suppression Method for Main Circuit Breaker Switching Overvoltage in Electric Motor Train Unit (EMU)

QIN Qi; ZHANG Jianqiong; WANG Qingfeng; LI Xiangqiang

doi:10.13296/j.1001-1609.hva.2026.01.024

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Research on High-voltage Side Suppression Method for Main Circuit Breaker Switching Overvoltage in Electric Motor Train Unit (EMU)

Research & Analysis | 更新时间：2026-04-13

- Research on High-voltage Side Suppression Method for Main Circuit Breaker Switching Overvoltage in Electric Motor Train Unit (EMU)
- High Voltage Apparatus Vol. 62, Issue 1, Pages: 190-197(2026)
- 作者机构：
  
  西南交通大学物理科学与技术学院，成都　610031
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2026.01.024
  CLC：
- Received：10 July 2025，
  
  Revised：2025-10-13，
  
  Published：16 January 2026
- 稿件说明：
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QIN Qi, ZHANG Jianqiong, WANG Qingfeng, et al. Research on High-voltage Side Suppression Method for Main Circuit Breaker Switching Overvoltage in Electric Motor Train Unit (EMU)[J]. High Voltage Apparatus, 2026, 62(1): 190-197.
DOI：

QIN Qi, ZHANG Jianqiong, WANG Qingfeng, et al. Research on High-voltage Side Suppression Method for Main Circuit Breaker Switching Overvoltage in Electric Motor Train Unit (EMU)[J]. High Voltage Apparatus, 2026, 62(1): 190-197. DOI： 10.13296/j.1001-1609.hva.2026.01.024.

摘要

目前对于列车操作主断引起车体过电压的抑制方法研究，大多是通过在车底低压部分进行过电压抑制，但由于不同车型保护接地方式的差异性，对操作主断过电压难以形成系统性的通用抑制方法。针对这一问题，从操作主断过电压的传播路径出发，研究可用于动车组高压侧的过电压通用抑制方法，提出了一种基于接地电感器的过电压抑制装置，理论分析了抑制器的电感量范围、磁芯材料、耐压和抗饱和需求等，并由操作主断过电压仿真模型验证了抑制器在抑制操作主断过电压的有效性。根据电感参数需求研制了抑制电感装置实物模型，对其进行了阻抗特性分析，验证了电感抑制装置设计的合理性，为现车实际应用奠定了技术基础。

Abstract

At present

most of the research on the overvoltae suppression methods EMU due to the operation of main circuit breaker of the train in operation is to perform the overvoltage suppression at the low voltage part at the bottom of the train. However

due to the differences among protection grounding methods of various types of trains

it is hard to form systematically a general supression method for the switching overvoltage of the circuit breaker in operation. In response to this issue

the general suppression method of overvoltage for the EMU is studied based on the propogation path of overvoltge of the main circuit breaker.An overvoltge supression device based on the grounding inductor is propsoed

and such requirements as inductance range

magnetic core material

withstanding voltage and anti-saturation of the suppressor is theoretically analyzed.Moreover

the effectiveness of the suppressor in suppressing the overvolatge of the main circuit breaker is verified by the simulation model of the switching overvoltge of the main circuit breaker.The physical model of the inductor device is developed based on the requirement of inductance parameter

its impedance characteristic is analyzed and the rationality of the design of the inductor suppression device is verified

which lay a technical foundation for the practical application of existing EMU.

关键词

Keywords

references

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