Control of the reactive line current provided by a Dual-Bridge Matrix Converter using the input-output feedback linearization approach

A new time-invariant reduced-order model expressed in the d-q rotating reference frame of a three-phase dual-bridge matrix converter is presented. Then, a closed-loop control of the reactive component of the line current is developed. The proposed control-law uses the input-output feedback linearization approach. It allows a unity input power factor operation independently of the voltage transfer ratio variation as well as a reduction of the resonant oscillations at the line side during transient operations. In other words, a considerable reduction of the imperfections provided by the passive input filter is achieved. The performances of the proposed control strategy are tested and compared to those of an open-loop SVM scheme by using matlab and simulink software.