Research on the Observation Method for Asynchronous Motor Rotor Flux

Accurate acquisition of asynchronous motor rotor flux plays a significant part in the high-performance motor speed regulation system. For that reason, this paper gives the advantages and disadvantages of various methods for motor rotor flux observation based on the studying of them, also application guides are given. Finally, a combination model based on the voltage model of rotor flux observer and the current model of rotor flux observer is given, and simulation analysis based on the combination model is carried out by Matlab/Simulink to verify the effectiveness of it.