Model Predictive Torque Control of Induction Motor Drives with Computed Torque for Servo Press

The use of induction motor (IM) is a promising way to replace conventional mechanical actuation such as PMSM in small-size servo press. However, in order to achieve a better dynamical and steady performance than traditional control method, new control strategies have to be investigated. In this paper, model predictive control (MPC) of IM with Computed torque is implemented for the first time which can satisfy the strict positioning requirements in servo press. Additionally, PD control based on velocity and acceleration is employed. Simulation for algorithm is established on a servo press model and shows an improved performance with respect to the existing control strategies.