Simulation of Electrical Field of High-speed Train High-voltage Roof Equipment and Structure Optimization of Fittings

DENG Zhixiang; PENG Zongren; YIN Guilai

doi:10.13296/j.1001-1609.hva.2016.11.025

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Simulation of Electrical Field of High-speed Train High-voltage Roof Equipment and Structure Optimization of Fittings

更新时间：2025-04-26

- Simulation of Electrical Field of High-speed Train High-voltage Roof Equipment and Structure Optimization of Fittings
- High VoltageApparatus Vol. 52, Issue 11, Pages: 149-156(2016)
- 作者机构：
  
  1. 国网江西省电力公司电力科学研究院
  2. 西安交通大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2016.11.025
  CLC： U270.381
- Published：2016
- 稿件说明：
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[1]邓志祥,彭宗仁,尹桂来.高速列车车顶高压设备电场仿真计算及金具结构优化[J].高压电器,2016,52(11):149-156.

DENG Zhixiang, PENG Zongren, YIN Guilai. Simulation of Electrical Field of High-speed Train High-voltage Roof Equipment and Structure Optimization of Fittings[J]. High voltageapparatus, 2016, 52(11): 149-156.
[1]邓志祥,彭宗仁,尹桂来.高速列车车顶高压设备电场仿真计算及金具结构优化[J].高压电器,2016,52(11):149-156. DOI： 10.13296/j.1001-1609.hva.2016.11.025.

DENG Zhixiang, PENG Zongren, YIN Guilai. Simulation of Electrical Field of High-speed Train High-voltage Roof Equipment and Structure Optimization of Fittings[J]. High voltageapparatus, 2016, 52(11): 149-156. DOI： 10.13296/j.1001-1609.hva.2016.11.025.

摘要

高速列车车顶高压设备易出现电晕放电甚至沿面闪络

而电场分布特性是影响放电的重要因素之一。笔者结合实际运行中的某高速列车车顶高压设备的设计方案

利用有限元方法仿真计算了其电场分布

得到并分析了车顶高压设备电场分布的规律及特点

并优化了部分场强过高的金具结构。结果表明

车顶高压设备电场分布无轴对称性且极不均匀

设备伞裙的最高场强位于伞裙与高压端金具连接的部位;部分金具表面场强超过起晕控制场强

可能引发电晕放电

经优化后的金具表面场强满足起晕控制场强的要求。

Abstract

The high-voltage roof equipment of high-speed train is prone to corona discharge or even flashover

and the electric field distribution is one of the key influencing factors. According to the design of a certain high-speed train

the authors simulate the electric field distribution by using finite element method（FEM）. The electric field distribution and its characteristics of the high-voltage roof equipment are analyzed

and some structures of the fittings with higher electric field intensity are optimized. The results indicate that the electric field distribution of the high-voltage roof equipment is nonaxisymmetry and quite nonuniform

the maximum electric field intensity is located on the contact point between the fittings and umbrellas

and the electric field intensity of several fittings is larger than the critical value and may lead to corona discharge. After structure optimization

the surface electric field intensity of the fittings become smaller than the critical value.

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