Fully soft-switched bidirectional resonant dc-dc converter with a new CLLC tank

Author

Chen, Wei ; Wang, Siran ; Hong, Xiaoyuan ; Lu, Zhengyu ; Ye, Shaoshi

Author_Institution

Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China

fYear

2010

fDate

21-25 Feb. 2010

Firstpage

1238

Lastpage

1242

Abstract

A bidirectional dc-dc converter with a new CLLC type resonant tank, which features in ZVS for the input inverting port switches and ZCS for the output rectifier port switches, regardless of the direction of the power flow, is proposed. If the MOSFETs are implemented as all of the main switches, the proposed converter has a minimized switching loss. The detail operation principles, as well as the design considerations, are presented. A prototype, which interfacing the 400 V/48 V DC buses for the UPS system with a power rating of 500 VA, whose highest conversion efficiencies for the bidirectional mode both exceed 96%, was developed to verify the validity and applicability of this proposed converter.

Keywords

DC-DC power convertors; rectifiers; uninterruptible power supplies; zero current switching; zero voltage switching; CLLC type resonant tank; MOSFET; UPS system; ZCS; ZVS; apparent power 500 VA; input inverting port switches; output rectifier port switches; soft-switched bidirectional resonant DC-DC converter; voltage 400 V; voltage 48 V; DC-DC power converters; Load flow; MOSFETs; Rectifiers; Resonance; Switches; Switching converters; Switching loss; Zero current switching; Zero voltage switching; Bidirectional dc-dc converter; Topology combination; ZCS; ZVS;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2010 Twenty-Fifth Annual IEEE

Conference_Location

Palm Springs, CA

ISSN

1048-2334

Print_ISBN

978-1-4244-4782-4

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2010.5433345

Filename

5433345