Simplified predictive instantaneous current control for single-phase and three-phase voltage-fed PFC converters

Abstract

An analogue controller-based predictive instantaneous current control scheme for single-phase and three-phase voltage-fed PFC converters is proposed. Through a modification of the original control scheme for a digital controller-based single-phase converter, a simplified analogue controller-based single-phase version is obtained. Further, its three-phase version is obtained by employing a particular arrangement of the controller/modulator. The theory and implementation of the proposed simplified control for single-phase and three-phase converters are described. Also, experimental results obtained from single-phase and three-phase prototype converters are shown to confirm the validity of the theory.