关键词: 混合永磁记忆电机, 滑模磁链观测器, 模糊PI控制器, 自适应

Abstract: Compared with the traditional permanent magnet synchronous motor, the hybrid permanent magnet memory motor had the characteristics of on-line adjustable air gap flux, and could be used in occasions that required a wide range of speed adjustment and high energy utilization. In view of the difficulty in orientation of the rotor flux linkage in the process of on-line tuning of the hybrid memory motor, the motor back EMF was used to design a sliding mode observer to observe the rotor flux linkage, replacing the switching function with a saturation function, and adopting fuzzy PI in the speed loop. The controller replaced the conventional PI controller, and overcame the shortcoming that the traditional PI controller cannot adaptively change PI parameters. The simulation results verify that the method can correctly track the rotor flux linkage and increase the system's anti-interference ability and stability.

Key words: hybrid permanent magnet memory motor (HPMMM), sliding mode flux observer, fuzzy PI controller, adaptation