Axial Magnetic Field Simulation of Vacuum Interrupters at High Frequency

LI Ruchun; DAN Shuheng; ZHU Xiaoxian; XIA Xin; MENG Zhoutian; LI Qingzhe

doi:10.13296/j.1001-1609.hva.2020.11.026

您当前的位置：

首页 >

文章列表页 >

Axial Magnetic Field Simulation of Vacuum Interrupters at High Frequency

更新时间：2025-04-26

- Axial Magnetic Field Simulation of Vacuum Interrupters at High Frequency
- High VoltageApparatus Vol. 56, Issue 11, Pages: 167-172(2020)
- 作者机构：
  
  1. 上海电力大学
  2. 国网上海金山供电公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.11.026
  CLC： TM561.5
- Published：2020
- 稿件说明：
移动端阅览
[1]李如春,淡淑恒,朱小贤,夏欣,孟洲恬,李庆喆.高频下真空灭弧室纵向磁场仿真[J].高压电器,2020,56(11):167-172.

LI Ruchun, DAN Shuheng, ZHU Xiaoxian, et al. Axial Magnetic Field Simulation of Vacuum Interrupters at High Frequency[J]. High voltageapparatus, 2020, 56(11): 167-172.
[1]李如春,淡淑恒,朱小贤,夏欣,孟洲恬,李庆喆.高频下真空灭弧室纵向磁场仿真[J].高压电器,2020,56(11):167-172. DOI： 10.13296/j.1001-1609.hva.2020.11.026.

LI Ruchun, DAN Shuheng, ZHU Xiaoxian, et al. Axial Magnetic Field Simulation of Vacuum Interrupters at High Frequency[J]. High voltageapparatus, 2020, 56(11): 167-172. DOI： 10.13296/j.1001-1609.hva.2020.11.026.

摘要

真空灭弧室是机械式高压直流断路器的核心部件

为了有利于熄灭电弧

开断直流电流时

通常利用人工过零技术

在直流电流上叠加高频震荡电流

使得开断故障电流过零。由于直流断路器开断电流为高频电流

灭弧室间隙磁场分布对真空断路器的开断有着决定作用

通过建立三维真空灭弧室触头有限元模型

分析计算高频情况下的真空灭弧室的磁场分布情况。结果表明:高频情况下触头间隙磁场大小以及磁场滞后时间受到严重影响

触头间隙纵向磁场大小与平板触头产生效果类似

这对断路器开断效果很不利。

Abstract

The vacuum interrupters is the core component of the mechanical high-voltage DC circuit breaker.In order to facilitate the arc extinguishing

when the DC current is interrupted

the artificial zero-crossing technology is usually used to superimpose the high-frequency oscillation current on the DC current

so that the fault current crosses zero.Since the breaking current of the DC interrupters is a high-frequency current

the gap magnetic field distribution of of arc extinguishing chamber has a decisive effect on the breaking of the vacuum circuit breaker.By establishing a finite element model of the three-dimensional vacuum interrupters contact

the magnetic field distribution of the vacuum interrupter under high frequency conditions is analyzed and calculated.The results show that the contact gap magnetic field and the magnetic field lag time are seriously affected under high frequency conditions.The axial magnetic field of the contact gap is similar to that of the flat contact

which is unfavorable for the breaking effect of the interrupters.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

EXPERIMENTAL SIMULATION TECHNOLOGY OF VIRTUAL PROTOTYPE AND ITS APPLICATION IN THE DESIGN OF OPERATING MECHANISM OF VACUUM CIRCUIT BREAKER

Three-phase Modeling of Vacuum Circuit Breakers Switching off Shunt Reactors

Overvoltage Simulation and Protection of 126 kV Vacuum Circuit Breaker

Comparative Analysis on Simulation of AMF and TMF High Frequency Magnetic Field Characteristics

Optimized Design on Cam of Spring Operation Mechanism for Vacuum Circuit Breaker

Related Author

WANG Ke-dian

XU Hai-bo

DU Ning1

GUAN Yong-gang1

ZHANG Jing-sheng2

NIU Ji-rong3

YAO Shu-hua3

XU Guo-zheng1

Related Institution

Xi’an Jiaotong University

西安交通大学机械工程学院陕西西安 710049

Department of Electrical Engineering, Tsinghua University

Inner Mongolia Electric Power Group Co.,Ltd.

Inner Mongolia Electric Power Research Institute

⁰