基于自适应观测器的感应电机无源控制

new passivity-based control method of induction motor is proposed based on adaptive observation technology. First, passivity-based control theory is applied to design the induction motor torque tracking controller and the corresponded stator voltage controller. Then, an adaptive full order flux observer controller is proposed to enhance the accuracy of motor speed and stator resistance identification and flux observation value and guarantee the global stability of the system. The observer gain matrix selection method is given to improve the stability of the observer. Finally, we put forward a stator resistance adaptive mechanism to improve the adaptive property to the stator resistance variations. The simulation results show that the proposed full-order-observer-based passivity controller can guarantee the asymptotic tracking of rotate speed and torque and has the very good dynamic and static performance.