Three-Phase AC-DC Converters with Passive, Active and Hybrid Current Injection Circuits -Part I

AC-DC three-phase converters are very well known for having enhanced power quality with unity displacement power factor, low total harmonic pollution on the AC side, and controllable DC output with unidirectional or bidirectional power flow. The first part of this paper presents a review of several three-phase AC-DC converters with passive current injection circuits, detailing their respective topologies and characteristics.