Title |
Sensorless Vector Control of Induction Motor Using the Flux Estimator |
Keywords |
Sensorless Vector ; Flux Estimator ; Current Model ; Voltage Model |
Abstract |
This paper presents a flux estimator for the sensorless vector control of induction motors. The proposed method utilize the combination of the voltage model based on stator equivalent model and the current model based on rotor equivalent model, which enables stable estimation of rotor flux in high speed region and in low speed region. The dynamic performance of proposed method is verified through the experiment. The experimental results show that motors ran easily start even under 150[%] load condition and operate continuously below 0.5[Hz]. |