Comparative evaluation of Predictive Control schemes for three-phase buck-type PFC rectifiers

This paper presents a comparative evaluation of different control schemes based in Model Predictive Control (MPC). These control schemes are compared with a classical control scheme based on pulse width modulation and linear controllers. MPC-based schemes with and without the inclusion of a modulation stage are studied in this work. Simulation results show that although MPC-based schemes present superior dynamic performance, the ripple in the input currents is much higher than in the classical PWM-based schemes operating at the same switching frequency. This problem is solved by the inclusion of a modulation stage in the MPC control scheme.