Application of Dual Spectrum Analysis to Mechanical Vibration Signal Process of High Voltage Circuit Breakers Based on WP-AR Model

DONG Yue; XIAO Deng-ming

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Application of Dual Spectrum Analysis to Mechanical Vibration Signal Process of High Voltage Circuit Breakers Based on WP-AR Model

更新时间：2025-05-17

- Application of Dual Spectrum Analysis to Mechanical Vibration Signal Process of High Voltage Circuit Breakers Based on WP-AR Model
- High VoltageApparatus Vol. 45, Issue 4, Pages: 137-141(2009)
- 作者机构：
  
  上海交通大学电子信息与电气工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM561
- Published：2009
- 稿件说明：
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[1]董越,肖登明.基于WP-AR模型的双谱估计在高压断路器振动信号处理中的应用[J].高压电器,2009,45(04):137-141.

DONG Yue, XIAO Deng-ming. Application of Dual Spectrum Analysis to Mechanical Vibration Signal Process of High Voltage Circuit Breakers Based on WP-AR Model[J]. High voltageapparatus, 2009, 45(4): 137-141.
[1]董越,肖登明.基于WP-AR模型的双谱估计在高压断路器振动信号处理中的应用[J].高压电器,2009,45(04):137-141. DOI：

DONG Yue, XIAO Deng-ming. Application of Dual Spectrum Analysis to Mechanical Vibration Signal Process of High Voltage Circuit Breakers Based on WP-AR Model[J]. High voltageapparatus, 2009, 45(4): 137-141. DOI：

摘要

采用小波包（WP）的方法先对现场采集的、噪声干扰较大的信号进行消噪处理

选取目的频带信号;再用奇异值分解（SVD）方法求解修正Yule-walker方程

估计AR参数及其阶数

进行双谱分析

提取机械性能判据对断路器进行在线故障诊断。经对多组不同时期的现场数据分析、对比

得出该方法可行有效

可为高压断路器实时在线故障诊断提供有效依据。

Abstract

The mechanical vibration signals with noises interference

sampled in site

are de-noised with WP（wavelet package） method to achieve the aim frequency band.Then with the Levinson-durbin solution

the parameters of AR model are obtained in the Yule-walker equation.The high order spectrum analysis is then used to deal with the parameters

which provides the dual spectrum results for the proof of on-line fault diagnosis of circuit breaker.The analysis of field data shows that this method is feasible and efficient to provides a good means foron on-line fault diagnosis of CB.

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