关键词: 永磁同步电机, 反步控制, 自抗扰控制, 复合控制

Abstract: A compound control strategy for PMSM is proposed in order to achieve high performance control. On the basis of vector control system for PMSM, a backstepping controller is designed for electric current loop control to obtain the stator voltage in synchronous rotating coordinate and to ensure the stability of the system. A linear structure-optimized active disturbance rejection controller is designed for speed loop control to improve the anti-disturbance ability of the system. A two-order link is adopted to achieve smooth speed signal and perfect non-overshooting speed. Simulation results show that, compared with traditional PI control, the compound control strategy has wider adaptive range of speed, non-overshoot, stronger anti-disturbance ability, and so on.

Key words: permanent magnet synchronous motor, backstepping control, active disturbance rejection control, compound control