永磁同步电机调速系统自抗扰控制器的设计

Active Disturbance Rejection Controller Design for PMSM Speed Regulation System

将自抗扰控制器(ADRC)运用到永磁同步电机(PMSM)调速系统控制中。电流环采用一阶非线性自抗扰控制器(NLADRC)抵消电流环反电势的影响,减小电流跟踪误差和相电流总谐波畸变(THD);转速环采用一阶线性自抗扰控制器(LADRC)对负载转矩和黏滞摩擦进行补偿,提高系统转速稳定性;最后利用基于带宽的参数整定公式整定控制器参数。仿真和实验结果表明系统具有良好的转速稳定及抗负载扰动能力,验证了控制器设计的有效性。

Active disturbance rejection controller(ADRC)was applied to speed control of permanent magnet synchronous motor(PMSM)regulation system.Nonlinear ADRC(NLADRC)were employed for d and q axis current regulation,so that the effect of back EMF was cancelled by NLADRC,furthermore,the tracking error and total harmonic distortion(THD)of phase current were decreased.LADRC were employed for speed regulation,the load torque and viscous friction were compensated by LADRC,as a result,the speed stability was improved effectively.Finally the controller parameters were tuned based on the bandwidth formula.The simulation and experimental results show that the system has good speed stability and load disturbance performance,which proves effectiveness of the controller design.