中文说明：资源描述有源码有数据有论证，研究成果在太阳能学报（EI）上发表。针对风力发电机组传动系统故障时特征量提取困难的问题，提出改进的小波包结合包络谱的故障诊断新方法。深入研究小波包频带错乱的问题，对小波包实施改进，消除频带错乱的缺陷。首次将改进的小波包与包络谱结合起来，通过对风机传动系统试验台的齿轮、轴承故障实际数据的深入分析，准确提取出特征量，实现故障的诊断和定位，证实该文提出的方法的准确性和有效性，为风电机组传动系统的故障诊断提供新思路。
English Description：
Application backgroundThere are source code to demonstrate that the results of research in the Journal of solar energy (EI). Aiming at the problem of extracting the characteristic parameters of the transmission system of the wind turbine, a new method of fault diagnosis based on improved wavelet packet and envelope spectrum is proposed. In depth study of the problem of wavelet packet frequency band, the implementation of the wavelet packet to improve, eliminate the defect of frequency band. For the first time, the improved wavelet packet and envelope spectrum are combined. The accuracy and efficiency of the fault diagnosis and location of the fault diagnosis and location are proved by the analysis of the actual data.