Calculation of Power Frequency Electric Field Strength Caused by UHV-AC Transmission Line Considering Ground Potential Rise

YU Ji-hui; WANG Guo-hui

doi:10.13296/j.1001-1609.hva.2010.01.012

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Calculation of Power Frequency Electric Field Strength Caused by UHV-AC Transmission Line Considering Ground Potential Rise

更新时间：2025-04-26

- Calculation of Power Frequency Electric Field Strength Caused by UHV-AC Transmission Line Considering Ground Potential Rise
- High VoltageApparatus Vol. 46, Issue 1, Pages: 22-26+31(2010)
- 作者机构：
  
  重庆大学输配电装备及系统安全与新技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.01.012
  CLC： TM721.2
- Published：2010
- 稿件说明：
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[1]俞集辉,王国辉.计及地电位升高的超高压交流输电线路工频电场计算[J].高压电器,2010,46(01):22-26+31.

YU Ji-hui, WANG Guo-hui. Calculation of Power Frequency Electric Field Strength Caused by UHV-AC Transmission Line Considering Ground Potential Rise[J]. High voltageapparatus, 2010, 46(1): 22-26+31.
[1]俞集辉,王国辉.计及地电位升高的超高压交流输电线路工频电场计算[J].高压电器,2010,46(01):22-26+31. DOI： 10.13296/j.1001-1609.hva.2010.01.012.

YU Ji-hui, WANG Guo-hui. Calculation of Power Frequency Electric Field Strength Caused by UHV-AC Transmission Line Considering Ground Potential Rise[J]. High voltageapparatus, 2010, 46(1): 22-26+31. DOI： 10.13296/j.1001-1609.hva.2010.01.012.

摘要

为研究地电位升高时超高压交流输电线路产生的工频电场

将地电位升高作为第一类边界条件

应用模拟电荷法

建立了考虑地电位升高影响的超高压交流输电线路下方工频电场计算模型。与CDEGS软件计算结果的对比表明

该方法是可行、有效的。同时分析了不同地电位升高值、导线高度及导线排列方式下

地电位升高对超高压输电线路工频电场的影响。提出对地电位升高区域内的工频电场暴露应给予更多关注并采取相应的限制措施。

Abstract

In order to study the power frequency electric field caused by UHV-AC transmission line as ground potential rise（GPR） occurs

a model for calculating power frequency electric field strength under the UHV-AC transmission line is established by using charge simulation method which takes GPR as the first boundary condition.The model considers the influence of GPR.The comparison of calculation results between this method and the software CDEGS shows the former is feasible and effective.Moreover

the influences of GPR upon the power frequency electric field strength are analyzed under the conditions of different magnitudes of ground potential rise

different line heights and different arrangement manners of lines.Therefore

more attention should be paid to the power frequency electric field exposure in the GPR region

relevant restrictive measures should be taken.

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