Poxuan Mu
ABSTRACT
Permanent magnet synchronous motor (PMSM) plays an important leading role in today's industry on account of its advantages such as high torque density, high efficiency, and good speed regulation performance. In order to enhance the responsiveness and stability of the dual closed-loop control system of permanent magnet synchronous motor (PMSM), and to address the issues of low control accuracy and poor anti-interference ability caused by traditional PI control methods, a design method of adding an Active Disturbance Rejection Controller (ADRC) based on conventional PI control is proposed. Through simulation experiments on line MATLAB/Simulink, the consequence show that the system performance of PMSM under ADRC control has been greatly improved. Compared with conventional PI control, the overshooting amount of speed and torque is greatly reduced compared to the PI control under the traditional, and the overshooting time is also greatly reduced, which improves the stability of the closed-loop control.
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