基于ESO的PMSM系统自抗扰FCS-MPC策略

为了提高三相永磁同步电机(PMSM)系统的控制性能,以反双曲正弦函数为基础,通过改进的扩张状态观测器(ESO)获取转速和反电动势项高精度估值,以自抗扰控制作为转速控制调节器,提出了基于ESO的自抗扰有限控制集模型预测控制(FCS-MPC)策略,以减小电磁转矩脉动,降低算法的复杂性和计算量.与基于PI的 FCS-MPC策略相比,新的控制策略能够保证 PMSM系统稳定运行,具有良好的转速跟踪性、抗干扰性和鲁棒性.

Active disturbance rej ection control FCS-MPC strategy based on ESO of PMSM system

In order to improve the control performance of three-phase permanent magnet synchronous motor (PMSM)system, an active disturbance rej ection finite control set-mode predictive control (FCS-MPC)strategy based on improved extended state observer (ESO)is proposed in this paper.ESO is designed based on the arc-hyperbolic sine function to obtain estimations of rotating speed and back electromotive force (EMF)term of motor speed.Active disturbance rej ection control (ADRC)is applied as speed controller.The proposed FCS-MPC strategy aims to reduce the electromagnetic torque ripple and the complexity and calculation of the algorithm.Compared with the FCS-MPC strategy based on PI controller,the constructed control strategy can guarantee the reliable and stable operation of PMSM system,and has good speed tracking,anti-interference ability and robustness.