Title :
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
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;
Conference_Titel :
Industrial Electronics Society, IECON 2014 - 40th Annual Conference of the IEEE
DOI :
10.1109/IECON.2014.7049161
