Research on the control strategy of permanent magnet synchronous motor

In the energy transformation field, permanent magnet synchronous motor (PMSM) are extensively used universally in many areas owing to high efficiency drive and high accuracy control. PMSM with high efficiency, high power density and high accuracy control can significantly improve the performance and the efficiency of energy utilization of the device. In this paper, the mathematical model and working principle of the PMSM are fully analyzed and discussed comprehensively, the model is established through the use of MATLAB/Simulink, and a novel current regulating strategy based on the fuzzy PID control algorithm is put forward to optimize the motor's speed control. Fuzzy PID control skillfully combines the intuitionistic character of PID and the adaptable feature of fuzzy control and fits the system uncertainty to better achieve the control effect. Simulation contrast indicates that the fuzzy PID is far superior to the conventional PID in accuracy, stability and resistance to perturbation and possesses greater adaptability and robustness and is academically very significant in furthering the industrial application of the PMSM and the progress of green energy saving.