In this paper, wavelet packet analysis algorithm is used to extract the characteristics of the cooling fan of inverter and a feature table of typical fault is built.
利用小波包分析算法提取某大型变频器风机的故障特征向量，并构建了典型故障特征表。
In this paper, wavelet packet analysis algorithm is used to extract the characteristics of the cooling fan of inverter and a feature table of typical fault is built.
利用小波包分析算法提取某大型变频器风机的故障特征向量，并构建了典型故障特征表。
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