Approach for Fast Calculating Radiation Field Leaking from Basin-type Insulator of GIS Under Switcher Operation Using Vector Recursive Convolution

WU Xiaogang; ZHANG Pengfei; ZHU Chongming; ZOU Jun

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Approach for Fast Calculating Radiation Field Leaking from Basin-type Insulator of GIS Under Switcher Operation Using Vector Recursive Convolution

更新时间：2025-12-08

- Approach for Fast Calculating Radiation Field Leaking from Basin-type Insulator of GIS Under Switcher Operation Using Vector Recursive Convolution
- Vol. 45, Issue 9, Pages: 2980-2989(2019)
- 作者机构：
  
  1. 智能电网保护和运行控制国家重点实验室
  2. 南瑞集团有限公司
  3. 清华大学电机工程与应用电子技术系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 September 2019，
  
  Published：2019
- 稿件说明：
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WU Xiaogang, ZHANG Pengfei, ZHU Chongming, et al. Approach for Fast Calculating Radiation Field Leaking from Basin-type Insulator of GIS Under Switcher Operation Using Vector Recursive Convolution[J]. 2019, 45(9): 2980-2989.
DOI：

WU Xiaogang, ZHANG Pengfei, ZHU Chongming, et al. Approach for Fast Calculating Radiation Field Leaking from Basin-type Insulator of GIS Under Switcher Operation Using Vector Recursive Convolution[J]. 2019, 45(9): 2980-2989. DOI：

摘要

为快速计算气体绝缘变电站（GIS）开关操作产生暂态过程通过盆式绝缘子处泄漏至外部空间的辐射场

将计算过程分为电路模型计算和电磁场模型计算两部分

电路计算部分指基于导体传输线理论及非线性电弧特性对GIS进行非线性电路建模

并计算得到快速暂态过电流（VFTC）

也即计算辐射所用激励源;电磁场计算部分指对GIS盆式绝缘子处辐射场建立有限元模型并计算冲激响应

将冲激响应与VFTC做矢量递归卷积可同时得到开关操作下的多场点辐射响应。当存在多个VFTC激励时

相比多次有限元直接计算

利用上述方法仅需一次有限元计算即可同时获得不同激励下的多场点场量值

提高了计算速度。将该方法与不同算法的计算结果进行对比

并对某1 000 kV GIS不同VFTC激励下的盆式绝缘子泄漏辐射场进行计算

结果表明:利用该计算方法可快速、准确获得任意VFTC下通过盆式绝缘子泄漏至GIS外部空间中多场点处的辐射响应。

Abstract

For fast calculation of electromagnetic field leaking from the basin-type insulator of gas insulated substation（GIS） during very fast transient process

the calculation process is divided into circuit model calculation and electromagnetic field model calculation. In the circuit model calculation

a non-linear circuits model of GIS is established based on transmission line theory and non-linear arc characteristics

which can be used to calculate very fast transient currents（VFTC

namely

source of radiation）. In the electromagnetic field model calculation

a finite element model is established for the radiation from the basin-type insulator and used to calculate the impulse responses. After the vector recursive convolution being applied

VFTC and impulse responses can be used to simultaneously calculate the radiation field in many points under the switcher operation. When there are more than one VFTC resource

compared to multiple calculation by the finite element method

the approach in this paper can be adopted to simultaneously get electromagnetic fields at many points only through a finite element calculation

and thus can remarkably quicken the calculated speed.The results comparison with different methods in the references and calculation results of the radiation field in 1 000 kV GIS show that electromagnetic field of multiple filed points leaking from the basin-type insulator of GIS under certain VFTC can be acquired fast and accurately through using the approach in this paper.

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