The fuzzy inference algorithm based on the fuzzy set theory and fuzzy logic, can infer the acquiring fault spectrum fuzzily to etermine fault types, and detect mixed fault especial effectively.

• 基于模糊集理论和模糊逻辑的模糊推理算法，则通过对获取的故障特征量进行模糊推理进而确定故障类型，对存在多种故障的电机尤为有效。