A CURRENT-PREDICTION SCHEME FOR THE PRDCL INVERTER-FED INDUCTION-MOTOR DRIVE

A simplified parallel resonant de-link (PRDCL) inverter topology with reduced peak voltage is presented, A novel current-prediction scheme w hich facilitates interfacing the resonant-link topology to an ac motor is proposed, Various simulation waveforms and experimental results ar e given to show the effectiveness of the proposed current-prediction s cheme, Some studies relating to the selection of resonant component va lues and characteristic impedance of the link on the voltage overshoot are presented, This study makes it possible to design drives without clamping.