一种改进的小波网络及其在故障诊断中的应用

为了提高故障诊断的准确性,提出改进的小波网络,增加基本小波网络输入层至输出层的直接连接权。结合抽油机井故障实例,进行仿真研究,结果表明改进的小波网络较BP网络和未改进的小波网络收敛速度快,且对故障诊断识别能力强。

An Improvement of Wavelet Network and Application in Fault Diagnosis

In order to increase the currency of fault diagnosis,a kind of wavelet neural network(WNN) is given with its improved structure,increasing the connections between the input and the output layers of the model in part.Combined with the example of fault diagnosis for pumping wells,the result indicates that the improved WNN has the quicker convergence speed than BP-network and unimproved wavelet neural network,its diagnosis results are accord with the facts for fault diagnosis.