基于神经网络专家系统的水电机组故障诊断分析

摘要

针对水电机组振动诱因多、诊断准确率较低等现象，结合神经网络系统和专家诊断理论，建立一种新型的故障诊断模型，并将其应用于实测振动信号的诊断分析，取得了良好的诊断效果，为水电机组在线故障诊断提供了一种有效、快速的新方法。%Because of the many causes and low diagnosis accuracy of hydropower units faults , a new diagnosis method is established based on neural network and experts system , and then it is applied to diagnosis the tested faults signals .The good diagnosis effect is verified the reliability of this method , and it provides an effective and fast way for faults diagnosis of hydropower units .