Study on Electric Field Distribution Around High-speed Railway Under Lightning Environment

YANG Xue; LI Zhongmei; LI Ruifang; LI Feipeng; WANG Sheng

doi:10.13296/j.1001-1609.hva.2021.02.005

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Study on Electric Field Distribution Around High-speed Railway Under Lightning Environment

更新时间：2025-04-26

- Study on Electric Field Distribution Around High-speed Railway Under Lightning Environment
- High VoltageApparatus Vol. 57, Issue 2, Pages: 27-32+41(2021)
- 作者机构：
  
  1. 国网四川省电力公司检修公司
  2. 国网四川省电力公司雅安供电公司
  3. 西南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.2021.02.005
  CLC： P427.3;U223.8
- Published：2021
- 稿件说明：
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[1]杨雪,李中梅,李瑞芳,李飞鹏,王胜.雷电环境下高速铁路周围电场分布研究[J].高压电器,2021,57(02):27-32+41.

YANG Xue, LI Zhongmei, LI Ruifang, et al. Study on Electric Field Distribution Around High-speed Railway Under Lightning Environment[J]. High voltageapparatus, 2021, 57(2): 27-32+41.
[1]杨雪,李中梅,李瑞芳,李飞鹏,王胜.雷电环境下高速铁路周围电场分布研究[J].高压电器,2021,57(02):27-32+41. DOI： 10.13296/j.1001-1609.hva.2021.02.005.

YANG Xue, LI Zhongmei, LI Ruifang, et al. Study on Electric Field Distribution Around High-speed Railway Under Lightning Environment[J]. High voltageapparatus, 2021, 57(2): 27-32+41. DOI： 10.13296/j.1001-1609.hva.2021.02.005.

摘要

中国高速铁路大量采用高架桥结构

研究雷电环境下高架桥接触网系统电场分布情况对于高速铁路雷击机理的阐明具有重要意义。文中结合先导发展模型以及中国高铁接触网系统实际参数

建立了高架桥接触网系统三维电场仿真模型

并对先导模型进行等效处理。基于此

分析了接触网系统周围电场分布情况

并对高架桥区段以及路基段的电场进行对比研究

研究发现:高架桥区段接触网系统周围场强明显大于路基段

因此在高架桥区段防雷措施应该更加严格;高架桥内部钢筋结构实则对接触网系统周围电场是削弱作用

并提出电容等效模型对该现象进行解释。研究结果可为今后高速铁路防雷研究提供一定理论基础。

Abstract

Viaduct structure is adopted widely in high-speed railway in China. It is of great significance to study theelectric field distribution of viaduct catenary system under lightning environment for clarifying the lightning strikemechanism of high-speed railway. In this paper

the three-dimensional electric field simulation model of viaduct cate-nary system is established with combination of the leader development model and the actual parameters of high-speed railway catenary system in china and the leader model is equivalently processed.On this basis

the electricfield distribution around the catenary system is analyzed and the electric field of viaduct section and subgrade sectionof high-speed railway is compared and studied. It is found by the study that the electric field strength around the cate-nary system in the viaduct section is obviously higher than that of the subgrade section.Therefor

the lightning protec-tion measures in the viaduct section should be more stringent.The reinforcement structure inside the viaduct actuallyweakens the electric field around the catenary system and the capacitance equivalent model is proposed to explainthe phenomenon. The study result can provide a theoretical basis for the lightning protection study of high-speed rail-way in China in the future.

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