关键词: 永磁同步电机, 扩张状态观测器, 自抗扰, 参数辨识

Abstract:  In order to effectively solve the influence of the internal and external disturbance of the permanent magnet synchronous motor on the control system, and improve the self anti-perturbation ability of the control system. An adaptive inverse system synthesis control algorithm based on extended state observer (ESO) compensation is proposed. The second-order extended state observer (ESO1) of d axis current system and the third-order extended state observer (ESO2) of the speed control system are designed for real-time estimation of the uncertain disturbance and unknown state of the speed control system, and use it to do feedforward compensation. The stator resistance and inductance parameters of the motor are identified by model reference adaptation. The experimental results show that the proposed algorithm has strong robustness to the internal parameters perturbation and external load disturbance of the motor.

Key words: Permanent magnet synchronous motor, extended state observer, self anti-perturbation, parameter identification