PMSM Vector Control Based on Sliding Mode and Improved PR Controller

For the PI control in the permanent magnet synchronous motor vector control system, it is difficult to meet the requirements of high-performance control, and it is sensitive to external disturbances. It has been suggested that Sliding Mode Control (SMC) be used in the speed loop rather than PI control. This would eliminate the overshoot of the speed, make the speed fluctuation small when the load is suddenly applied, and allow the speed to be quickly restored to stability, all of which would improve the system’s ability to withstand shocks. Because the conventional vector control system for permanent magnet synchronous motors needs to execute three coordinate changes, an improved proportional resonance (PR) controller is utilized in the current loop. This particular controller does not include compensation items related to motor parameters. the complex nature of the computation. The findings of a Matlab/Simulink simulation indicate that combining the aforementioned control strategies in a PMSM vector control system is a workable possibility.