Single-stage three-phase AC to DC conversion with isolation and Bi-directional power flow

Author

Vermulst, B.J.D. ; Duarte, J.L. ; Wijnands, C.G.E. ; Lomonova, E.A.

Author_Institution

Electromech. & Power Electron. Group, Eindhoven Univ. of Technol., Eindhoven, Netherlands

fYear

2014

Firstpage

4378

Lastpage

4383

Abstract

An approach for three-phase AC to DC conversion is proposed, which consists of a single-stage while offering galvanic isolation, soft-switching, bi-directional power flow and a significant reduction of inductive and capacitive energy storage. Two elements enable this approach, namely a neutral voltage-lift capacitor and a Quad Active Bridge (QAB) converter. Moreover, a control strategy is described and a detailed converter analysis is given.

Keywords

AC-DC power convertors; inductive energy storage; load flow; power capacitors; QAB converter; bidirectional power flow; capacitive energy storage reduction; galvanic isolation power flow; inductive energy storage reduction; neutral voltage-lift capacitor; quad active bridge converter; single-stage three-phase AC-to-DC conversion; soft-switching power flow; Bidirectional control; Bridge circuits; Capacitors; Inductors; Pulse width modulation; Topology; Voltage control; AC-DC converters; bidirectional power flow; power conversion; three-phase electric power; zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, IECON 2014 - 40th Annual Conference of the IEEE

Type

conf

DOI

10.1109/IECON.2014.7049161

Filename

7049161