Analysis on Effect of Topography on Ground Power Frequency Electric Field of 1000 kV AC Transmission Line

YANG Tao; ZOU Anxin

doi:10.13296/j.1001-1609.hva.2019.12.016

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Analysis on Effect of Topography on Ground Power Frequency Electric Field of 1000 kV AC Transmission Line

更新时间：2025-04-26

- Analysis on Effect of Topography on Ground Power Frequency Electric Field of 1000 kV AC Transmission Line
- High VoltageApparatus Vol. 55, Issue 12, Pages: 112-119(2019)
- 作者机构：
  
  国网重庆市电力公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.12.016
  CLC： TM75
- Published：2019
- 稿件说明：
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[1]杨滔,邹岸新.地形对1000 kV交流输电线路地面工频电场的影响分析[J].高压电器,2019,55(12):112-119.

YANG Tao, ZOU Anxin. Analysis on Effect of Topography on Ground Power Frequency Electric Field of 1000 kV AC Transmission Line[J]. High voltageapparatus, 2019, 55(12): 112-119.
[1]杨滔,邹岸新.地形对1000 kV交流输电线路地面工频电场的影响分析[J].高压电器,2019,55(12):112-119. DOI： 10.13296/j.1001-1609.hva.2019.12.016.

YANG Tao, ZOU Anxin. Analysis on Effect of Topography on Ground Power Frequency Electric Field of 1000 kV AC Transmission Line[J]. High voltageapparatus, 2019, 55(12): 112-119. DOI： 10.13296/j.1001-1609.hva.2019.12.016.

摘要

工频电场是1000 kV交流输电线路电磁环境影响的重要因素之一

容易受多种因素的影响。为准确掌握地形对其影响规律

基于镜像法并结合优化模拟电荷法

提出了可用于起伏地形下工频电场计算的方法

其有效性得到了实测数据的验证。利用该计算方法对1000 kV交流输电线路在不同地形及起伏角度情况下的工频电场分布进行仿真分析

结果表明:起伏角度越大

工频电场的分布畸变越强;凹形地形靠近地面的两个拐角和凸形地形顶部的两个拐角会增大工频电场

而对应的另外两个拐角对工频电场有一定的抑制作用。该方法及相应的仿真分析结果可为1000 kV交流输电线路经过起伏地形时线路规划设计从电磁环境角度提供技术参考。

Abstract

Power frequency electric field is one of important electromagnetic environment influence factors of 1000 kV AC transmission line

which is easy impacted by many factors.In order to accurately grasp the effect of topography on it.Based on the image method and combined with the optimized charge simulation method

put forward the improved calculation method of the power frequency electric field when exist the rugged topography

the effectiveness of the proposed method has been measured data validation.Use the proposed method to analyze the influence rule of power frequency electric field distribution in the of different angles and landform.The results show that the greater rolling angle

the stronger power frequency electric field distortion;Concave terrain two inflection points close to the ground and convex terrain at the top of the two turning points will increase the power frequency electric field distribution.The other two corresponding corner has a certain inhibitory effect.The method and simulation analysis results can offer technical reference for the planning and design of the 1000 kV AC transmission lines through slope topography in the view of electromagnetic environment.

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