Calculation of Spatial Electromagnetic Field in GIS Substation

ZHAO Xue; LIN Xin; HAO Sha; TIAN Ye; ZHAI Wenpeng

doi:10.13296/j.1001-1609.hva.2020.11.033

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Calculation of Spatial Electromagnetic Field in GIS Substation

更新时间：2025-04-26

- Calculation of Spatial Electromagnetic Field in GIS Substation
- High VoltageApparatus Vol. 56, Issue 11, Pages: 219-224+232(2020)
- 作者机构：
  
  1. 沈阳工业大学电气工程学院
  2. 辽宁电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.11.033
  CLC： TM15;TM63
- Published：2020
- 稿件说明：
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[1]赵雪,林莘,郝莎,田野,翟文鹏.气体绝缘变电站空间电磁场计算[J].高压电器,2020,56(11):219-224+232.

ZHAO Xue, LIN Xin, HAO Sha, et al. Calculation of Spatial Electromagnetic Field in GIS Substation[J]. High voltageapparatus, 2020, 56(11): 219-224+232.
[1]赵雪,林莘,郝莎,田野,翟文鹏.气体绝缘变电站空间电磁场计算[J].高压电器,2020,56(11):219-224+232. DOI： 10.13296/j.1001-1609.hva.2020.11.033.

ZHAO Xue, LIN Xin, HAO Sha, et al. Calculation of Spatial Electromagnetic Field in GIS Substation[J]. High voltageapparatus, 2020, 56(11): 219-224+232. DOI： 10.13296/j.1001-1609.hva.2020.11.033.

摘要

气体绝缘变电站（gas insulated substation

GIS）中隔离开关的倒闸操作会产生强烈的瞬态空间电磁场

对变电站中电子设备形成电磁干扰

威胁其运行。为此

文中提出采用时域有限积分法计算GIS空间电磁场分布

考虑由于隔离开关操作对GIS造成的空间电磁暂态过程。文中计算并分析了550 kV GIS中空间环境中的电场和磁场

分别计算和分析传导耦合和辐射耦合下电磁强度在不同距离

不同高度的分布特性和规律（GIS线路内电磁强度随线路长度的变化

以及电磁强度距离GIS线路高度的变化）。计算结果表明

电磁波到达端口的时间有一定的滞后

电磁强度随线路长度呈现上下波动的状态

空间电磁强度随线路高度呈指数性衰减。

Abstract

Switching operation of the isolating switch in gas insulated substation（GIS） generates a strong transient electromagnetic field

which threatens operation of the electronic equipment in the substation.This paper uses the time-domain finite integration method to calculate the spatial electromagnetic field in GIS with consideration of the spatial electromagnetic transient process caused by operation of the isolating switch.The electric and magnetic fields in the spatial environment of a 550 kV GIS are calculated and analyzed.The distributions of the electromagnetic field strength along the GIS line and at different height to the GIS line are calculated and analyzed under the respective conditions of conduction coupling and radiation coupling.The results show that the electromagnetic wave reaches the port with a certain lag

the electromagnetic field intensity fluctuates with the length of the line

and the spatial electromagnetic intensity exhibits exponential decay with the line height.

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