Model predictive current control for PMSM considering number of switching operations

This paper presents a model predictive-based current control for PMSMs. In our approach, a reference voltage to an inverter can be strictly treated as a discrete voltage vector so that the output saturation of the inverter is avoided. Various constraints can be also taken into consideration in our approach. Both tolerance ranges for control variables and number of switching operations are incorporated into a single objective function in order to consider a trade-off between current ripple and switching operations. The effectiveness of the proposed method is verified through simulations and experiments.