基于改进时间同步压缩S变换的断路器触头不同期时间测量

SUN Shuguang; LU Mengxin; WANG Jingqin; CUI Yulong; FAN Haoliang; ZHANG Ya

doi:10.13336/j.1003-6520.hve.20241444

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基于改进时间同步压缩S变换的断路器触头不同期时间测量

更新时间：2026-09-16

- 基于改进时间同步压缩S变换的断路器触头不同期时间测量
- Vol. 51, Issue 10, Pages: 5139-5154(2025)
- 作者机构：
  
  1. 河北工业大学人工智能与数据科学学院,天津,300130
  2. 河北工业大学电工产品可靠性技术省部共建协同创新中心,天津,300130
  3. 北京化工大学信息科学与技术学院,北京,100029
  4. 河北长孚电气设备有限公司,保定,071051
- 作者简介：
- 基金信息：
- DOI：10.13336/j.1003-6520.hve.20241444
  CLC：
- Published：2025
- 稿件说明：
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SUN Shuguang, LU Mengxin, WANG Jingqin, et al. 基于改进时间同步压缩S变换的断路器触头不同期时间测量[J]. 2025, 51(10): 5139-5154.
DOI：

SUN Shuguang, LU Mengxin, WANG Jingqin, et al. 基于改进时间同步压缩S变换的断路器触头不同期时间测量[J]. 2025, 51(10): 5139-5154. DOI： 10.13336/j.1003-6520.hve.20241444.

摘要

针对利用振动信号进行万能式断路器触头不同期时间测量存在的撞击时刻时域定位难的问题，提出一种基于改进时间同步压缩S变换的测量方法。首先融合模态相关变分模态分解与快速奇异值分解方法对合闸振动信号进行预处理，基于触头碰撞激发的振动信号频率特征进行重构，以提取主触头碰撞的有效振动冲击成分；然后提出改进时间同步压缩S变换，提高触头振动冲击这一类短时宽频带信号的时频表征能力；结合频率切片的包络谱幅值最大值准则筛选最佳频率点处的触头冲击特征，从而确定主触头碰撞的关键事件节点，最终实现三相不同期时间测量。试验结果表明，所提方法实现了不同程度触头不同期状态的有效测量，具有一定的工程实用性。

Abstract

Aiming at the problem that it is difficult to locate the impact time domain in the measurement of asynchronous time of conventional circuit breaker contacts by using vibration signals

we propose a measurement method based on modified time-reassigned S-transform. Firstly

mode relevance variational mode decomposition(MRVMD) and fast singular value decomposition(FSVD) methods are combined to preprocess the closing vibration signal

and the frequency characteristics of the vibration signal excited by the contact collision are reconstructed to highlight the effective impact characteristics of the main contact collision. Then

a modified time-reassigned S-transform is proposed to improve the time-frequency representation ability of short-term broadband signals such as contact vibration impact. Finally

combined with the maximum envelope spectrum amplitude criterion of frequency slice

the contact impact characteristics at the optimal frequency point are screened to determine the key event nodes of the main contact collision

and the three-phase asynchronous time measurement is realized. The experimental results show that the proposed method can be adopted to realize the effective measurement of different contact states

and has an engineering practicability.

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