Robust Speed Controller Design of PMSM Drives by a Proportional Resonant-Based ADRC

Smooth speed regulation is of importance for permanent magnet synchronous motor (PMSM) drives. However, the speed controller suffers from internal and external periodical load disturbances. To this end, this paper proposes a Proportional Resonant- Based AD R C speed controller within the PMSM field-oriented control frame. The periodical disturbance estimation in extended state observer is done by a proportional resonant scheme to enhance the disturbance rejection ability of speed control loop. The stability and performance analysis of proposed method is proved theoretically and then validated by simulation and experiments.