Application and Simulation Computations of Current Zero Distortion for UHV Circuit-breaker Short Circuit Test

WANG Chaowu; GAO Xiangxiang; LI Gang; LIU Haojun

doi:10.13296/j.1001-1609.hva.2016.06.008

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Application and Simulation Computations of Current Zero Distortion for UHV Circuit-breaker Short Circuit Test

更新时间：2025-04-26

- Application and Simulation Computations of Current Zero Distortion for UHV Circuit-breaker Short Circuit Test
- High VoltageApparatus Vol. 52, Issue 6, Pages: 46-49(2016)
- 作者机构：
  
  西安高压电器研究院有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2016.06.008
  CLC： TM561
- Published：2016
- 稿件说明：
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[1]王超武,高享想,李刚,刘浩军.特高压断路器短路开断试验零前电流畸变的仿真及应用[J].高压电器,2016,52(06):46-49.

WANG Chaowu, GAO Xiangxiang, LI Gang, et al. Application and Simulation Computations of Current Zero Distortion for UHV Circuit-breaker Short Circuit Test[J]. High voltageapparatus, 2016, 52(6): 46-49.
[1]王超武,高享想,李刚,刘浩军.特高压断路器短路开断试验零前电流畸变的仿真及应用[J].高压电器,2016,52(06):46-49. DOI： 10.13296/j.1001-1609.hva.2016.06.008.

WANG Chaowu, GAO Xiangxiang, LI Gang, et al. Application and Simulation Computations of Current Zero Distortion for UHV Circuit-breaker Short Circuit Test[J]. High voltageapparatus, 2016, 52(6): 46-49. DOI： 10.13296/j.1001-1609.hva.2016.06.008.

摘要

高压断路器在开断短路电流时

触头间建立起的电弧电压和试验回路的作用

使得电流过零前短路电流波形发生畸变。依据IEC 62271-101:2012附录A

理论分析了电弧电压为恒值和线性增长时的畸变电流表达式

以MATLAB/Simulink仿真环境为平台

建立了电弧电压为恒值和线性增长时短路电流的动态数学仿真模型

并以1 100 k V/63 k A试验方式T100a断路器为例应用仿真模型计算了电弧电压对电流半波幅值和持续时间的衰减百分比

计算结果可以为断路器短路试验时提供理论参考。

Abstract

During the current interruption process

the arc voltage across the contacts causes the prospective short-circuit current distorted as the current approaches zero. According to the annex A of IEC 62271-101:2012

theoretical analysis the distortion current expressions with the constant arc voltage and linearly rising arc voltage respectively. Using the MATLAB/Simulink platform

established the distortion current dynamic mathematical simulation model which is respectively with constant arc voltage and linearly rising arc voltage. Furthermore

we have used the dynamic mathematical simulation model to calculate the reductions of the current amplitude and the loop duration which are caused by the arc voltage based on the test duties T100 a for 1 100 k V/63 k A circuit breaker. The results of calculation can provide theoretical reference when circuit breaker short circuit test.

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