Simulation Analysis on Effect of Phase Sequence on Power Frequency Electromagnetic Field Under UHV AC Transmission Lines

ZOU Anxin; XU Luwen

doi:10.13296/j.1001-1609.hva.2015.03.014

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Simulation Analysis on Effect of Phase Sequence on Power Frequency Electromagnetic Field Under UHV AC Transmission Lines

更新时间：2025-04-26

- Simulation Analysis on Effect of Phase Sequence on Power Frequency Electromagnetic Field Under UHV AC Transmission Lines
- High VoltageApparatus Vol. 51, Issue 3, Pages: 82-87(2015)
- 作者机构：
  
  国网重庆市电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.03.014
  CLC： TM721.2
- Published：2015
- 稿件说明：
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[1]邹岸新,徐禄文.相序对特高压交流输电线下工频电磁场影响的仿真分析研究[J].高压电器,2015,51(03):82-87.

ZOU Anxin, XU Luwen. Simulation Analysis on Effect of Phase Sequence on Power Frequency Electromagnetic Field Under UHV AC Transmission Lines[J]. High voltageapparatus, 2015, 51(3): 82-87.
[1]邹岸新,徐禄文.相序对特高压交流输电线下工频电磁场影响的仿真分析研究[J].高压电器,2015,51(03):82-87. DOI： 10.13296/j.1001-1609.hva.2015.03.014.

ZOU Anxin, XU Luwen. Simulation Analysis on Effect of Phase Sequence on Power Frequency Electromagnetic Field Under UHV AC Transmission Lines[J]. High voltageapparatus, 2015, 51(3): 82-87. DOI： 10.13296/j.1001-1609.hva.2015.03.014.

摘要

在实际工程中

特高压交流输电线路为保证三相平衡经常采用变相序的方法进行运行。为掌握相序对特高压交流输电线下工频电磁场的影响情况

笔者以荆门—南阳—晋东南1 000 kV特高压输电线路为例

采用线单元模拟电荷法和基于毕奥—沙伐尔定律的数值计算方法分别对不同相序运行时的工频电场和工频磁场分布情况进行了仿真分析。分析发现:同相序排列时电场强度较大

逆相序排列时电场强度较小

而工频磁场在逆相序排列方式时稍大

在同相序排列方式时较小。

Abstract

To ensure three-phase equilibrium

ultra-high voltage（UHV） AC transmission lines often operate with changeable phase sequence. In this paper

the Jingmen-Nanyang-Southeast Shanxi 1 000 kV UHV transmission line is taken for example to investigate the effect of phase sequence on the power frequency electromagnetic field under the UHV AC transmission line. The line unit charge simulation method and the numerical calculation method based on Biot-Savart law are employed to simulate the distributions of power frequency electric field and magnetic field for different phase sequences. The results show that the electric field intensity is higher in same phase sequence but lower in reverse phase sequence

while the magnetic field intensity behaves reversely.

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