Predictive position control in two-mass drive with induction motor over a wide range of speed changes

This paper deals with the predictive shaft position control for the two-mass induction motor drive. The controller co-operates with the Direct Torque Control - Space Vector Modulation (DTC-SVM), also in the field-weakening region. The adaptation mechanism of the torques constraints is applied to ensure that the critical torque is not exceeded. Within the framework of the research the influence of the position time constant and the speed constraint level on the dynamical properties is analysed, also in the field-weakening region.