Adaptive Generalized Super-Twisting Sliding Mode Control for PMSM Servo System

Aiming at improving the anti-disturbance capability and response speed of permanent magnet synchronous motor (PMSM) system, a novel adaptive gains generalized super- twisting controller (AGSTC) is constructed for speed loop. By introducing adaptive control gains into the generalized super- twisting algorithm (GSTA), the proposed AGSTC eliminates the requirement to determine the upper bound of disturbance. The proposed AGSTC improves the dynamic performance of the PMSM system. Experiments are carried out to present the effectiveness of the proposed AGSTC.