›› 2013, Vol. 26 ›› Issue (9): 110-.

• 论文 • 上一篇    下一篇

基于小波分析的电线电缆故障信号特征提取

杜宏超   

  1. (西安电子科技大学 电子工程学院,陕西 西安 710071)
  • 出版日期:2013-09-15 发布日期:2013-09-25
  • 作者简介:杜宏超(1986—),男,硕士研究生。研究方向:系统工程。E-mail:369527868@qq.com

Research on Signal Feature Extraction in Wire and Cable Fault Based on Wavelet Analysis

DU Hongchao   

  1. (School of Electronic Engineering,Xidian University,Xi'an 710071,China)
  • Online:2013-09-15 Published:2013-09-25

摘要:

电线电缆作为一个应用广泛的基础产业,占据着我国电工行业1/4的产值,仅次于汽车行业,是我国第二大行业,被称作国民经济的“动脉” 和“神经”。因此,对于电线电缆故障点的确定技术也是一个热门的课题。近年来,国内外学者对这个课题进行了深入的研究,取得了一定的成果。文中主要利用实验仿真手段,借助小波分析理论,在研究阈值去噪方法的基础上,研究了基于阈值的3σ去噪方法在电缆故障诊断中的应用。实验结果表明,文中方法在电缆故障特征信号的提取中的应用具有可行性。

关键词: 小波分析, 故障诊断, 3&sigma,

Abstract:

The wire and cable,as a basic industry of wide applications,occupies 1/4 the output value of China's electrical industry,second only to the automotive industry,and is considered as the “artery” and “nerve” of national economy.In recent years the determination of the point of failure for the wire and cable has been attracting in-depth study by domestic and foreign scholars.By means of experimental simulation and with the help of the wavelet analysis,threshold denoising method is discussed,and its application in the cable fault diagnosis is studied.Experimental results show that the method is feasible in cable fault characteristic signal extraction.

Key words: wavelet analysis;fault diagnosis;3σ

中图分类号: 

  • TM247