Calculation of Very Fast Transient Overvoltage with the Arc Resistance Model Considering Inductance Characteristic

LIU Dedong; WU Wenhui; HE Renwang; JIA Haowei

doi:10.13296/j.1001-1609.hva.2015.01.018

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Calculation of Very Fast Transient Overvoltage with the Arc Resistance Model Considering Inductance Characteristic

更新时间：2025-04-26

- Calculation of Very Fast Transient Overvoltage with the Arc Resistance Model Considering Inductance Characteristic
- High VoltageApparatus Vol. 51, Issue 1, Pages: 105-109(2015)
- 作者机构：
  
  华东交通大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.01.018
  CLC： TM63
- Published：2015
- 稿件说明：
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[1]刘德东,吴文辉,何人望,贾豪威.考虑弧道电感特性的电弧电阻模型下VFTO的研究[J].高压电器,2015,51(01):105-109.

LIU Dedong, WU Wenhui, HE Renwang, et al. Calculation of Very Fast Transient Overvoltage with the Arc Resistance Model Considering Inductance Characteristic[J]. High voltageapparatus, 2015, 51(1): 105-109.
[1]刘德东,吴文辉,何人望,贾豪威.考虑弧道电感特性的电弧电阻模型下VFTO的研究[J].高压电器,2015,51(01):105-109. DOI： 10.13296/j.1001-1609.hva.2015.01.018.

LIU Dedong, WU Wenhui, HE Renwang, et al. Calculation of Very Fast Transient Overvoltage with the Arc Resistance Model Considering Inductance Characteristic[J]. High voltageapparatus, 2015, 51(1): 105-109. DOI： 10.13296/j.1001-1609.hva.2015.01.018.

摘要

影响快速暂态过电压（very fast transient overvoltage

VFTO）因素很多

其中气体变电站（GIS）设备模型的选择对VFTO计算结果精确度的影响不可忽略。笔者采用考虑弧道电感特性的电弧电阻模型

结合国外某1 000 k V GIS变电站

详细计算了GIS内部的VFTO

分析了GIS内部关键设备处VFTO的极值。结果表明

用考虑弧道电感特性的电弧电阻模型模拟隔离开关的电弧的物理过程

进而对VFTO研究是适用的。最后还研究了入口电容、静态电感、GIS支路长度对VFTO的影响。

Abstract

Taking a foreign 1 000 k V gas transformer substation（GTS）as example

the very fast transient overvoltage（VFTO）in the GTS is calculated by using the arc resistance model considering arc inductance characteristic

and the extreme of VFTO at key equipment in the GTS is analyzed.Results show that the arc resistance model can correctly simulate the physical process of arc in the isolating switch for analyzing the VFTO.Moreover

the effects of the intake capacitance

the static inductance

and the GIS branch length on VFTO are investigated.

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