基于小波分析的异步电机转子断条故障研究

Rotor broken-bar fault is one of the most ordinary faults in induction motors. Based on analyzing the primary diagnosis methods, wavelet analysis is used on this paper to study the rotor broken-bar fault. The paper analyzes the principle and method of rotor broken-bar fault diagnosis in induction motors based on wavelet analysis and carries out simulation and experiment. The results of simulation and experiment indicate that the wavelet analysis method possesses a higher diagnosis precision and a better frequency resolution. Furthermore, this method is easily to be engineering achieved.