|
|||||
|
|
| 基于线调频小波变换能量谱的电机故障信号处理 | |
| 引用本文： | 胡国胜,朱锋峰,任震,涂用军.基于线调频小波变换能量谱的电机故障信号处理[J].高压电器,2005,41(6):449-451,455. |
| 作者姓名： | 胡国胜 朱锋峰 任震 涂用军 |
| 作者单位： | 1. 广东科学技术职业学院,广东,广州,510640;华南理工大学电力学院,广东,广州,510640 2. 华南理工大学理学院,广东,广州,510640 3. 华南理工大学电力学院,广东,广州,510640 4. 广东科学技术职业学院,广东,广州,510640 |
| 基金项目： | 国家自然科学基金资助（50077008）,广东省自然科学基金资助（033044） |
| 摘 要： | 提出了一种基于高斯线调频小波变换诊断电机故障的新方法。线调频小波变换是信号的时间-频率-尺度变换, 具有比小波变换及其它时频分析更强的非平稳信号分析功能。利用高斯线调频小波变换作电机故障信号的能量谱估计,可提取电机故障信号的频率成份。试验结果表明,这种方法比Fourier变换和小波变换频率分布的能量更集中。 |
| 关 键 词： | 电机 故障诊断 线调频小波变换 能量谱 |
| 文章编号： | 1001-1609（2005）06-0449-03 |
| 收稿时间： | 2005-08-07 |
| 修稿时间： | 2005-08-072005-09-08 |
Electric Machine Fault Diagnosing Based on Energy Spectrum of Gauss Chirplet Transforms |
|
| HU Guo-sheng,ZHU Feng-feng,REN Zhen,TU Yong-jun.Electric Machine Fault Diagnosing Based on Energy Spectrum of Gauss Chirplet Transforms[J].High Voltage Apparatus,2005,41(6):449-451,455. | |
| Authors: | HU Guo-sheng ZHU Feng-feng REN Zhen TU Yong-jun |
| Abstract: | In this paper, a new method of diagnosing electric machine fault, which based on gauss chirplet transforms, is presented. Chirplet transforms (CTs) are variation of the time, the frequency, and the scale of the signal. CTs have more effective than wavelet transforms in time-frequency analyzing of non-stable signals. Energy spectrums of electric machine fault signal can be gauged by using Gauss CTs, so the frequencies of the signal can be extracted. Experiment results show this method is more concentrated in energy than fourier transform and wavelet transform. |
| Keywords: | electric machine fault diagnosing chirplet transform energy spectrum |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |