Isolation stage for power electronic transformer: Dual active bridge vs bi-directional current doubler rectifier

Author

Beldjajev, V. ; Roasto, I. ; Zakis, J.

Author_Institution

Tallinn Univ. of Technol., Tallinn, Estonia

fYear

2012

fDate

20-22 June 2012

Firstpage

849

Lastpage

854

Abstract

This paper compares two DC/DC converter topologies which are suitable for isolation stage of power electronic transformer. Paper provides loss analysis of dual active bridge and current doubler rectifier topologies in forward and reverse operating modes. In particular, the conduction and switching losses, as well as overall efficiency are estimated. In addition, the calculated losses and overall efficiency of both converters are verified with simulations and with experimental results on 1 kW experimental prototype.

Keywords

DC-DC power convertors; losses; power transformers; rectifying circuits; DC-DC converter topology; bidirectional current doubler rectifier; conduction losses; dual active bridge rectifier; forward operating modes; loss analysis; power 1 kW; power electronic transformer; reverse operating modes; switching losses; Bidirectional control; Positron emission tomography; Switches; Switching loss; Topology; Transistors; Zero voltage switching; bi-directional current doubler; dual active bridge converter; power electronic transformer; soft switching; solid state transformer;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2012 International Symposium on

Conference_Location

Sorrento

Print_ISBN

978-1-4673-1299-8

Type

conf

DOI

10.1109/SPEEDAM.2012.6264545

Filename

6264545