Based on the improved control strategy of active disturbance rejection permanent magnet synchronous motor

High performance permanent magnet synchronous motor (PMSM) should have a series of advantages such as fast response, no overshoot, zero static error, etc. As a crucial part of motor drive, control algorithm plays a decisive role in whether the motor can fully play its performance. At present, most of the active disturbance rejection controls applied to PMSM only use the active disturbance rejection controller in the speed ring, and the PI control is still used in the current inner ring. However, the current inner loop is often the most important part of motor control. Therefore, this paper first presents the design scheme and parameter calculation of the traditional active disturbance rejection current loop PI controller, and then presents the active disturbance rejection controller applied to the current loop. Through the MATLAB simulation comparison, the active disturbance rejection controller used in the current loop has better dynamic and steady performance than the PI controller.