In order to improve the robustness and tracking accuracy of permanent magnet synchro-nous motor(PMSM),a novel fixed-time terminal sliding mode(TSM)control method is proposed.Firstly,the mathematical model of PMSM is constructed in d-q coordinate system.Then,the slid-ing mode surface design of fixed-time TSM is given and the control input of the system is derived.The advantage of this control scheme is that the convergence time for the motor can be set in advance without considering its initial state.Simulation and experimental results show that com-pared with traditional proportional integral(PI)and sliding mode control algorithms,the proposed control scheme can effectively improve the response speed,operation stability and anti-interference of the motor.
关键词
永磁同步电机/终端滑模/固定时间
Key words
permanent magnet synchronous motor(PMSM)/terminal sliding mode/fixed time
维普
万方数据