Research on the Influence of Motor Torque Ripple on the Moving Speed of Circuit Breaker

GENG Zhenxin; LIN Xin; GUO Yujing; WANG Zichi; LI Shaohua; XU Jianyuan; QU Kai; HUANG Xiaoming

doi:10.13296/j.1001-1609.hva.2020.07.010

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Research on the Influence of Motor Torque Ripple on the Moving Speed of Circuit Breaker

更新时间：2025-04-26

- Research on the Influence of Motor Torque Ripple on the Moving Speed of Circuit Breaker
- High VoltageApparatus Vol. 56, Issue 7, Pages: 63-68(2020)
- 作者机构：
  
  1. 沈阳工业大学电气工程学院
  2. 平高集团有限公司
  3. 国网浙江省电力有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.07.010
  CLC： TM561
- Published：2020
- 稿件说明：
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[1]庚振新,林莘,郭煜敬,王子驰,李少华,徐建源,屈凯,黄晓明.电机转矩波动对断路器运动速度影响的研究[J].高压电器,2020,56(07):63-68.

GENG Zhenxin, LIN Xin, GUO Yujing, et al. Research on the Influence of Motor Torque Ripple on the Moving Speed of Circuit Breaker[J]. High voltageapparatus, 2020, 56(7): 63-68.
[1]庚振新,林莘,郭煜敬,王子驰,李少华,徐建源,屈凯,黄晓明.电机转矩波动对断路器运动速度影响的研究[J].高压电器,2020,56(07):63-68. DOI： 10.13296/j.1001-1609.hva.2020.07.010.

GENG Zhenxin, LIN Xin, GUO Yujing, et al. Research on the Influence of Motor Torque Ripple on the Moving Speed of Circuit Breaker[J]. High voltageapparatus, 2020, 56(7): 63-68. DOI： 10.13296/j.1001-1609.hva.2020.07.010.

摘要

为了减小驱动电机换相转矩波动对真空断路器动触头运动速度的影响

提出一种换相期间PWM调制电机驱动回路开关管的方法。根据电机操动机构的工作原理

计算得到断路器动触头运动速度与电机输出转矩之间的数学关系

同步调节换相过程中各开关管触发信号PWM的占空比

减小输出转矩下降幅度

提高动触头运动速度。真空断路器电机操动机构联机实验结果表明

换相期间采用PWM调制的动触头运动速度整体得到提升

断路器平均合闸速度提高了0.21 m/s。

Abstract

To reduce the influence of drive motor commutation torque ripple for vacuum circuit breaker（VCB）moving contact speed

a method of Pulse-width modulation（PWM）to switching tubes during the motor commutation is proposed. According to the motor operating mechanism of VCB

the relation between the moving contact speed and the motor torque is calculated. During the motor commutation

the duty ratios of the opening switching tube and the closing switching tube are regulated respectively

so as to reduce the decline of motor output torque

the moving contact speed is increased. Through the experiment on VCB

the results show that the moving contact speed is raised entirely after PWM modulation during the commutation period. The average closing speed of VCB is raised by 0.21 m/s.

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