Servo Actuators with Induction Motor using Predictive Current Control with Duty Cycle Optimization

This paper proposes a controlling method for servo actuators of a three-phase induction motor (IM), using the finite control-set model predictive current control (FCS-MPCC). The IM is modelled using the indirect field-oriented control technique (IFOC), having the rotor flux as a reference for vector orientation. The control of the rotor shaft position from the IM, as well as the speed and magnetizing current controllers are performed using proportional-integral (PI) controllers. In addition, enhancement of control techniques using M
²
PCC and M³PCC are designed in order to minimize high ripples in the control variables, which means a reduction of the harmonics in at output of the converter. Simulation results are shown presenting high dynamic performance.