Design of Sliding Mode Predictive Controller for AC Servo System

In order to solve the position control problem of AC servo system, a new control strategy for the position based on sliding mode control and predictive control is proposed. The sliding mode control law is deduced, and according to the dynamic matrix theory, predictive model, controller and corrector are designed. The sliding mode predictive controller can restrain the change of system parameters and load disturbance, improve the system dynamic and static characteristic. The simulation results show that sliding mode predictive controller can guarantee the robustness of the control system.