Influence of High-voltage Transformer on Electric Locomotive Passing the Neutral Section

MA Tan; XU Yan

doi:10.13890/j.issn.1000-128x.2015.02.007

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Influence of High-voltage Transformer on Electric Locomotive Passing the Neutral Section

更新时间：2021-12-13

- Influence of High-voltage Transformer on Electric Locomotive Passing the Neutral Section
- Electric Drive for Locomotives Issue 2, Pages: 20-25(2015)
- 作者机构：
  
  1. 华中科技大学电气与电子工程学院
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128x.2015.02.007
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MA Tan, XU Yan. Influence of High-voltage Transformer on Electric Locomotive Passing the Neutral Section. [J]. Electric Drive for Locomotives (2):20-25(2015)
DOI：

MA Tan, XU Yan. Influence of High-voltage Transformer on Electric Locomotive Passing the Neutral Section. [J]. Electric Drive for Locomotives (2):20-25(2015) DOI： 10.13890/j.issn.1000-128x.2015.02.007.

摘要

根据电力机车过分相的典型运行状态，针对电磁感应、电阻分压和电容分压3 种电压互感器建立等效电路模型，仿真分析电力机车过分相的暂态过程，特别是过电压产生的机理。分析结果表明，电容分压原理的电子式电压互感器可消除谐振过电压，有效减小操作过电压，最利于改善电力机车过分相的暂态过程，降低牵引网绝缘事故的发生。

Abstract

Based on the typical manner of electric locomotive passing the neutral section, equivalent circuit model was established of the three kinds of voltage transformer according to electromagnetic induction, the resistance partial pressure and capacitance partial pressure. Transient process of electric locomotive passing the neutral section was simulated, especially the mechanism of overvoltage. The results showed that electronic voltage transformer based on capacitance partial pressure could eliminate resonant overvoltage, and reduce the operating overvoltage effectively. It is beneficial to improve transient process of electric locomotive passing the neutral section and reduce the traction network insulation accidents.

关键词

电力机车高电压互感器容性测量装置过分相过电压

Keywords

electrical locomotivehigh-voltage transformercapacitive measuring devicepassing the neutral sectionovervoltage

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