In the dual closed-loop vector control system of permanent magnet synchronous motor,the traditional PI controller of speed loop cannot meet the higher control requirements of PMSM.In this paper,an integral sliding mode controller was designed,and a new smooth and continuous saturation function was introduced to replace the sign function in the sliding mode controller to improve the anti-disturbance performance and robustness of the system.To improve the adaptive adjustment ability of the system when the motor operating state changes,fuzzy control was used to adjust the parameters adaptively of the sliding mode reaching law to improve approach speed and reduce sliding mode chattering.A simulation model of PMSM sliding mode control system based on fuzzy control was estab-lished,and compared with a PMSM control model using traditional PI controller.The analysis result shows that the fuzzy sliding mode speed controller has better anti-interference ability and robust.
关键词
永磁同步电机/滑模控制器/模糊控制/新式饱和函数
Key words
permanent magnet synchronous motor(PMSM)/sliding mode controller/fuzzy control/new saturation function
维普
万方数据