Predictive SVM Control Method of AC/DC Converter with LCL Filter

This paper presents simulation results of infinite control set model predictive control implemented into three-phase AC/DC converter. The connection between the converter and electric grid is made through LCL filter which is characterized by a better reduction of grid current distortions and smaller (cheaper) components in comparison to L-type filter. On the other hand, this type of filter can cause strong resonance at specific current harmonic which are efficiently suppressed by the control strategy which focuses on the strict control of the voltage vector of input filter capacitors. The presented method links benefits of using linear control methods based on space vector modulator and the non-linear ones which allow obtaining good control performance in steady state as well as in a transient state.