A Method of Diagnosing Steam Turbogenerator Set´s Vibration Multi-fault Based on Multi-layer Fuzzy Model

Vibration multi-fault often occur for the steam turbogenerator set. Up to now, the method of diagnosing multi-fault isn´t well-rounded. In this paper, a new method based on multi-layer fuzzy model is put forward. The method thinks that multi-fault can be diagnosed correctly if some predominant symptoms are known. It overcomes the limitation of traditional fuzzy generalization judgment. The experimental results show that the method is available to diagnose steam turbogenerator set´s vibration multi-fault and it can be used extensively in future.