A New Resonant Bidirectional DC–DC Converter Topology

Author

Twiname, Ross P. ; Thrimawithana, Duleepa J. ; Madawala, Udaya K. ; Baguley, Craig A

Author_Institution

Dept. of Electr. & Electron. Eng., Auckland Univ. of Technol., Auckland, New Zealand

Volume

29

Issue

9

fYear

2014

fDate

Sept. 2014

Firstpage

4733

Lastpage

4740

Abstract

This paper presents a new resonant dual active bridge (DAB) topology, which uses a tuned inductor-capacitor-inductor (LCL) network. In comparison to conventional DAB topologies, the proposed topology significantly reduces the bridge currents, lowering both conduction and switching losses and the VA rating associated with the bridges. The performance of the DAB is investigated using a mathematical model under various operating conditions. Experimental results of a 2.5-kW prototype, which has an efficiency of 96% at rated power, are also presented with discussions to demonstrate the improved performance of the tuned LCL DAB topology. Results clearly indicate that the proposed DAB topology offers higher efficiency over a wide range of both input voltage and load in comparison to conventional DAB topologies.

Keywords

DC-DC power convertors; resonant power convertors; dual active bridge topology; efficiency 96 percent; mathematical model; operating conditions; power 2.5 kW; resonant bidirectional dc-dc converter topology; tuned LCL DAB topology; tuned inductor-capacitor-inductor network; Bridge circuits; Harmonic analysis; Network topology; Pulse width modulation; Topology; Zero voltage switching; Dual active bridge (DAB) converter; dc–dc converters; modulation; resonant converter;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2013.2288325

Filename

6654350