Research on Formation Mechanism and Suppression Measures of Internal Overvoltage for High-speed Train

Shanqiang GU; Jingdi SUN; Rui ZHANG; Heng XU; Kun CHEN

doi:10.13890/j.issn.1000-128x.2020.03.010

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Research on Formation Mechanism and Suppression Measures of Internal Overvoltage for High-speed Train

更新时间：2021-12-10

- Research on Formation Mechanism and Suppression Measures of Internal Overvoltage for High-speed Train
- Electric Drive for Locomotives Issue 3, Pages: 51-55(2020)
- 作者机构：
  
  1.国网电力科学研究院　武汉南瑞有限责任公司，湖北　武汉　430074
  2.西南交通大学　电气工程学院，四川　成都　611756
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128x.2020.03.010
  CLC：
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Shanqiang GU, Jingdi SUN, Rui ZHANG, et al. Research on Formation Mechanism and Suppression Measures of Internal Overvoltage for High-speed Train. [J]. Electric Drive for Locomotives (3):51-55(2020)
DOI：

Shanqiang GU, Jingdi SUN, Rui ZHANG, et al. Research on Formation Mechanism and Suppression Measures of Internal Overvoltage for High-speed Train. [J]. Electric Drive for Locomotives (3):51-55(2020) DOI： 10.13890/j.issn.1000-128x.2020.03.010.

摘要

针对高速列车运行过程中出现的内部过电压现象，以车载自动过分相过电压和升降弓过电压2种情况为例，分析过电压产生原理及其影响因素，并建立仿真模型进行验证。为抑制高速列车内部过电压，提出在中性段并联阻波高通滤波器、采用贯通式同相供电系统以及选取合适的车顶电压互感器3种措施。结果表明，高速列车内部过电压与动作时刻接触网电压相位、电压互感器阻抗有关；通过仿真验证，所提出的3种过电压抑制方法均能有效降低过电压。

Abstract

Aiming at the internal overvoltage phenomenon during high-speed train operation, the overvoltage formation mechanism and its influencing factors were analyzed by taking the case of the overvoltage in passing neutral section and the overvoltage of pantograph raising and dropping, and a simulation model for verification was built. In order to reduce the internal overvoltage of high-speed train, three measures of parallel blocking high-pass filter in neutral section, adopting advanced co-phase traction power supply system and selecting suitable roof voltage transformer were proposed. The results showed that the internal overvoltage of the high-speed train was related to the voltage phase of the catenary at the time of operation and the impedance of the voltage transformer, the three overvoltage suppression methods proposed could effectively reduce the overvoltage with simulation.

关键词

高速列车过分相过电压升降弓过电压过电压抑制策略仿真接触网

Keywords

high-speed trainthe overvoltage in passing neutral sectionthe overvoltage of pantograph raising and droppingthe suppression measures of overvoltagesimulationcatenary

references

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YANG Zefeng2

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