A high efficiency non-isolated bidirectional DC-DC converter with zero-voltage-transition

Author

JiTai Han ; Chang-Soon Lim ; Ja-Hwi Cho ; Rae-Young Kim ; Dong-Seok Hyun

Author_Institution

Dept. of Electr. Eng., Hanyang Univ., Seoul, South Korea

fYear

2013

fDate

10-13 Nov. 2013

Firstpage

198

Lastpage

203

Abstract

A high efficiency bidirectional dc-dc converter is proposed for energy storage systems. In the proposed bidirectional converter, a simple auxiliary circuit has been applied to provide soft switching at both modes of operation. By added a resonant cell, the converter can realize zero-voltage-transition (ZVT) where both the switch and the rectifier diode achieve soft condition without increasing their voltage and current stresses. The proposed converter has the advantages of simple circuitry, reduced size, low cost and high efficiency because of a single resonant inductor. The operation principle of the converter is analyzed and described. Simulation results of the proposed bidirectional ZVT dc-dc converter are shown to verify its feasibility.

Keywords

DC-DC power convertors; diodes; energy storage; inductors; rectifiers; resonant power convertors; zero voltage switching; ZVT dc-dc converter; auxiliary circuit; current stress; energy storage system; high efficiency nonisolated bidirectional DC-DC converter; rectifier diode; resonant cell; resonant inductor; soft switching; voltage stress; zero-voltage-transition; Inductors; Rectifiers; Soft switching; Switches; Topology; Zero current switching; Zero voltage switching; DC-DC converter; Non-isolated converter; high efficiency; soft-switching; zero-voltage-transition;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE

Conference_Location

Vienna

ISSN

1553-572X

Type

conf

DOI

10.1109/IECON.2013.6699135

Filename

6699135