Suppression of Overshoot and Rebound of Circuit Breaker Contacts Driven by Motor Operating Mechanism

LI Shaohua; GENG Zhenxin; ZHANG Yiming; WANG Zichi; LIN Xin; ZHANG Dapeng; HUANG Xiaoming

doi:10.13296/j.1001-1609.hva.2020.09.040

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Suppression of Overshoot and Rebound of Circuit Breaker Contacts Driven by Motor Operating Mechanism

更新时间：2025-04-26

- Suppression of Overshoot and Rebound of Circuit Breaker Contacts Driven by Motor Operating Mechanism
- High VoltageApparatus Vol. 56, Issue 9, Pages: 273-278(2020)
- 作者机构：
  
  1. 平高集团有限公司
  2. 沈阳工业大学电气工程学院
  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.2020.09.040
  CLC： TM561
- Published：2020
- 稿件说明：
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[1]李少华,庚振新,张一茗,王子驰,林莘,张大鹏,黄晓明.电机操动机构断路器触头过冲与反弹的抑制[J].高压电器,2020,56(09):273-278.

LI Shaohua, GENG Zhenxin, ZHANG Yiming, et al. Suppression of Overshoot and Rebound of Circuit Breaker Contacts Driven by Motor Operating Mechanism[J]. High voltageapparatus, 2020, 56(9): 273-278.
[1]李少华,庚振新,张一茗,王子驰,林莘,张大鹏,黄晓明.电机操动机构断路器触头过冲与反弹的抑制[J].高压电器,2020,56(09):273-278. DOI： 10.13296/j.1001-1609.hva.2020.09.040.

LI Shaohua, GENG Zhenxin, ZHANG Yiming, et al. Suppression of Overshoot and Rebound of Circuit Breaker Contacts Driven by Motor Operating Mechanism[J]. High voltageapparatus, 2020, 56(9): 273-278. DOI： 10.13296/j.1001-1609.hva.2020.09.040.

摘要

为了抑制断路器合闸操作过程中的触头过冲与反弹现象

改善电机操动机构输出特性

文中通过分析电机操动机构断路器触头合闸运动过程

计算得到断路器动触头行程与驱动电机负载转矩之间数学关系

利用分段控制策略对电机操动机构驱动电机输出转矩进行调节

实现触头过冲与反弹的有效抑制。研制以数字信号处理器（DSP）为核心的控制装置

开展126 kV真空断路器电机操动机构合闸操作实验

对实验过程中的触头行程多组数据进行对比分析。结果表明:驱动电机在转动0°～10°

10°～36°

36°～64°角度时分别采用调制占空比1

0.4

0.8能有效抑制触头过冲与弹跳

且电机操动机构响应时间短

保证了电机操动机构合闸操作可靠性

提高了合闸能力。

Abstract

In order to suppress the overshoot and rebound of the contact during the closing operation of the circuit breaker and improve the output characteristics of the motor operating mechanism

the paper analyzes the closing movement process of the circuit breaker contact of the motor operating mechanism.The mathematical relationship between the moving contact stroke of the circuit breaker and the load torque of the driving motor is obtained.The closedloop segmentation control strategy is used to adjust the output torque of the motor operating mechanism drive motor to achieve effective suppression of contact overshoot and rebound.The control device with digital signal processor（DSP） as the core is developed

and the closing operation experiment of the 126 kV vacuum circuit breaker motor operating mechanism was carried out.The data of the contact strokes in the experimental process are compared and analyzed.The results show that when the driving motor rotates at 0°～10°

10°～36°

360°～64° respectively

the duty cycle of 1

0.4 and 0.8 can effectively restrain the overshoot and rebound of the contact

and the response time of the motor control mechanism is short

which ensures the reliability of the permanent magnet mechanism closing operation

improved the ability to close.

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