水电机组振动信号去噪的小波技术研究

Study on Wavelet Technology of De-noising of Vibration Signal of Hydropower Generating Unit

概述了水电机组振动信号处理技术的现状,着重介绍小波技术中小波分析、小波包分析、第二代小波变换等特点及在水电机组振动信号去噪处理中的应用,并分析了水电机组振动信号去噪技术中的问题和前景。

The current status about treatment of vibration signal for the hydropower generator set was described.Mainly the wavelet technology such as the characteristics of wavelet analysis,wavelet pack analysis and the second generation of wavelet transform was introduced as well as the application of them in treatment of vibration signal for the hydropower generator set.Furthermore,the problem and development tendency of the de-noising technology for the hydropower generator set were presented.