Simulation of Transient Enclosure Voltage in EHV GIS

LIN Xin; LI Shuang; XU Jian-yuan; CAI Qiang

doi:10.13296/j.1001-1609.hva.2011.03.003

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Simulation of Transient Enclosure Voltage in EHV GIS

更新时间：2025-04-26

- Simulation of Transient Enclosure Voltage in EHV GIS
- High VoltageApparatus Vol. 47, Issue 3, Pages: 12-17+25(2011)
- 作者机构：
  
  沈阳工业大学电气学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2011.03.003
  CLC： TM862
- Published：2011
- 稿件说明：
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[1]林莘,李爽,徐建源,蔡强.超高压GIS暂态壳体电压的仿真研究[J].高压电器,2011,47(03):12-17+25.

LIN Xin, LI Shuang, XU Jian-yuan, et al. Simulation of Transient Enclosure Voltage in EHV GIS[J]. High voltageapparatus, 2011, 47(3): 12-17+25.
[1]林莘,李爽,徐建源,蔡强.超高压GIS暂态壳体电压的仿真研究[J].高压电器,2011,47(03):12-17+25. DOI： 10.13296/j.1001-1609.hva.2011.03.003.

LIN Xin, LI Shuang, XU Jian-yuan, et al. Simulation of Transient Enclosure Voltage in EHV GIS[J]. High voltageapparatus, 2011, 47(3): 12-17+25. DOI： 10.13296/j.1001-1609.hva.2011.03.003.

摘要

笔者结合中国某500kVGIS变电站

根据多导体传输线理论和相模变换方法

建立了GIS外壳暂态模型

并与GIS内部暂态模型相结合

对隔离开关分合短母线情况下

在壳体上引起的暂态壳体电压（TEV）进行了计算

得到了壳体各接地点的TEV波形和频谱特性。最后

研究了接地线的数量对TEV的影响。研究表明

TEV具有陡度大、幅值高、频率成分多等特点

其最大值总是发生在操作相出线套管接地点的壳体上;在同一点增加接地线的数量可显著降低TEV的峰值。

Abstract

By establishing inner and outer models of GIS in transient state based on the theory of multi-conductor transmission lines and the phase-model transformation method

the transient enclosure voltages（TEV） on each earthing point of GIS were calculated for the disconnector’s operations of closing/opening the short bus according to a 500 kV GIS substation.The waveforms and spectrums of TEV on each earthing point on the enclosure were obtained.In addition

the effect of the number of earthing lead on TEV was investigated.The results demonstrate that TEV has the characteristics of sharp steepness

high amplitude

and multiple frequency components

and whose maximum value always appears on the earthing point of operation phase out-line bushing.Moreover

adding earthing leads of the same point can decline the amplitude of TEV significantly.

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School of Electrical Engineering,Xi’an Jiaotong University

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