Generalized Predictive Control of Multi-Phase Induction Machine Supplied by Multi-Level Inverter

With more than three phases, multi-phase induction machines provide an alluring substitute for lowering the strains placed on the machine's switches and windings. The management of overly produced current is one of the most important issues when making quick and significant adjustments to the speed control of a multi-phase induction motor. Thus, if the speed controller lacks an output amplitude limitation, it may cause harm to both the motor and the power electronics converter. The speed control loop and the two internal current control loops are the first two areas in which this research suggests using polynomial predictive controllers to solve the saturation phenomena of the speed regulator. Then, by convexly optimizing the Youla parameter while accounting for time and frequency constraints, the external predictive speed controller is readjusted. This ensures that the speed response to the reference stays in an imposed model with minimal current control during transient periods, while also preserving the closed-loop functionalities that the initial predictive controller had achieved. The results of the simulation demonstrate how well the suggested control system controls speed under different multi-phase induction machine operating situations.