A novel three-phase AC/DC converter without front-end filter based on repetitive control technique

Abstract

This paper proposes a novel three-phase AC/DC converter without a front-end filter. By adopting repetitive control technique, a front-end filter located after AC rectifier is omitted. The converter has many advantages such as simpler structure. Higher reliability and better output waveform. The principle of operation and harmonics elimination are elaborated. Finally, simulations show the approach is effective.