Modulated Model Predictive Control (M2PC) Applied to Three-Phase Dual-Converter-Based Rectifiers

This paper presents the use of the Modulated Model Predictive Control (
$\mathrm{M}^{2}$
PC) for three three-phase dual-converter based rectifiers, two of them with reduced switch-count. The control method performance is com-pared to that obtained with the Finite Control Set - Model Predictive Control (FCS-MPC). Additionally, a reduced computation burden method for the full-controlled rectifier is also proposed for symmetric (equal dc-link voltages) and asymmetric (unequal dc-link voltages) scenarios, without compromising the system performance. It is shown that
$\mathrm{M}^{2}$
PC operates properly for all three studied configurations, providing lower current THD than FCS-MPC, while preserving the fast and smooth transient response observed when FCS-MPC is employed. The simulation results also show that, for the same control method, asymmetric scenarios provides better results than symmetric ones.