Surface-Mounted Permanent Magnet Synchronous Motor Servo Control System Design Based On Sliding Mode Controller

This paper proposes a sliding mode controller for regulating the speed of a surface-mounted permanent-magnet synchronous motor (SPMSM). This controller is built by combining the terms of some linear matrix inequalities (LMIs) and mitigates the chattering phenomenon effectively. Moreover, a second-order load torque observer is presented to show the disturbance rejection capability of the proposed method. Finally, the stability of the proposed controller is analytically proven. This paper presents the novel application of LMIs to address the nonlinear control problem, effectively demonstrating the stability of the proposed combined controller. The control algorithm is implemented by using the Matlab/Simulink software. The simulation results are represented to verify the efficacy of the proposed algorithm.