A two level BP neural network expert system is constructed in this paper, the network is trained using the sampled fault data, the hybrid intelligent diagnosis to some fault is realized sequentially.

• 此外文中还建立了一个两级BP神经网络专家系统,利用所获得的故障样本数据对网络进行训练,从而实现了对某些故障的混合智能诊断。