Teng Wang, Keqilao Meng, Jiangong Zhang, Jinsheng Ou
Abstract Permanent magnet synchronous motor (PMSM) control techniques have gained attention as the performance requirements of motors increase. Traditional control strategies are limited in coping with variations and disturbances. In this study, a new PMSM controller based on parameter self-tuning is proposed, which enhances the system’s interference resistance and control accuracy through real-time monitoring and dynamic adjustment of parameters. Experiments show that the new controller reduces the speed overshoot by 20% and the tuning time by 15% under sudden load changes. When the motor parameters change by 10%, the speed error is still controlled within 1%, which shows strong robustness. In the physical experiment, under high-speed operating conditions (3000 rpm), the torque fluctuation is reduced by 25%, and the current harmonic content is reduced by 15%, significantly improving the motor’s running smoothness and energy efficiency ratio. This research provides a new technical way for high-performance control of permanent magnet synchronous motors and has a wide application prospect.