A 12-pulse rectifier using coupled reactors for supplying three-inverters

Abstract

The paper presents a proposal of an auspicious multi-pulse rectifier convenient for supplying three-level inverters. The rectifier consists of two three-phase bridges. Their outputs are connected in parallelwhile inputs are connected to the line by use of coupled reactors These reactors are connected and work in an exceptional variant 3CRλ. The application of 3CRλ makes that the diodes conduction angle in rectifiers achieves 180°. Simulation and experimental works prove that multi-pulse rectifier gives a worthy performance and has some respectable properties.