Study on fault diagnosis for frequency conversion drives based on wavelet analysis

WANG Xin; HUANG Jian

doi:10.13873/j.1000-97872007.07.031

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Study on fault diagnosis for frequency conversion drives based on wavelet analysis

更新时间：2025-09-11

- Study on fault diagnosis for frequency conversion drives based on wavelet analysis
- Issue 7, Pages: 21-23(2007)
- 作者机构：
  
  1. 河南理工大学电气工程与自动化学院
  2. 河南理工大学电气工程与自动化学院,河南,焦作,454003
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872007.07.031
  CLC： TM921.51
- Published：2007
- 稿件说明：
移动端阅览
[1]王新,黄建.基于小波分析的变频调速系统故障诊断研究[J].传感器与微系统,2007(07):21-23.

WANG Xin, HUANG Jian. Study on fault diagnosis for frequency conversion drives based on wavelet analysis[J]. 2007, (7): 21-23.
[1]王新,黄建.基于小波分析的变频调速系统故障诊断研究[J].传感器与微系统,2007(07):21-23. DOI： 10.13873/j.1000-97872007.07.031.

WANG Xin, HUANG Jian. Study on fault diagnosis for frequency conversion drives based on wavelet analysis[J]. 2007, (7): 21-23. DOI： 10.13873/j.1000-97872007.07.031.

摘要

讨论了交—交变频调速系统故障诊断的重要性

在当前的检测方法与故障诊断手段研究的基础上

提出了基于DSP和小波分析的变频调速系统故障诊断方法

建立了故障诊断系统;采用了基于小波能量的机电设备状态检测方法

充分利用了DSP强大的数据处理功能

以及小波分析所具有的对非平稳信号的分析处理能力和多分辨力的特性;建立了交—交变频调速系统的数学模型。经仿真实验证明:该方法适用于变频调速系统的故障诊断。

Abstract

The importance of fault diagnosis for AC-AC frequency conversion drivers is discussed

based on the study state at home and abroad. The methods of fault diagnosis for frequency conversion drivers based on DSP and the wavelet analysis are presented.The fault diagnosis system is built.The electromechanical equipment state detection based on the wavelet energy is used.The system makes full use of the power date disposing capability of DSP and the characteristics of wavelet analysis.The wavelet analysis is effect on the analysis and the processing of unsteady signals and its multi-resolution analysis technique.The mathematical mold of AC-AC frequency conversion drivers is established.The simulation results prove that the proposed method is feasible.

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references

电力电子主电路故障诊断方法研究 [J]. 郑连清,邹涛,娄洪立. 高电压技术 . 2006(03)

基于DSP的多功能电能质量监测仪的研制 [J]. 陆东生,赵素华,王振东. 电测与仪表 . 2006(02)

变频器故障诊断技术研究与分析 [J]. 孙丰涛,张承慧,崔纳新,杜春水. 电机与控制学报 . 2005(03)

基于DSP三相逆变电路在线故障诊断研究设计 [J]. 吴小华,史忠科,张晓斌. 电力电子技术 . 2004(02)

小波分析算法与应用[M]. 西安交通大学出版社 , 程正兴[著], 1998

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