Evaluation on fault diagnosis methods of dynamic system

The principle for selecting performance evaluation index of the fault diagnosis system is given. The performance evaluation index system of the fault diagnosis system is established. The performance indices are classified into the detection performance index, the diagnosis performance index and the comprehensive performance index. Some practical fault diagnosis methods, such as the fault detection filter method, the fault diagnosis method based on rough set modal and the fault diagnosis method based on rough neural network are evaluated. A number of valuable conclusions are obtained.