Isolation Stage for Power Electronic Transformer: Dual Active Bridge vs Bi-Directional Current Doubler Rectifier

International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM 2012): Proceedings 2012
viktor Beldjajev, Indrek Roasto, Jānis Zaķis

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
dual active bridge converter, bi-directional current doubler, power electronic transformer, solid state transformer, soft switching
DOI
10.1109/SPEEDAM.2012.6264545
Hyperlink
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6264545

Beldjajev, v., Roasto, I., Zaķis, J. Isolation Stage for Power Electronic Transformer: Dual Active Bridge vs Bi-Directional Current Doubler Rectifier. In: International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM 2012): Proceedings, Italy, Sorrento, 20-22 June, 2012. Piscataway: IEEE, 2012, pp.849-854. ISBN 978-1-4673-1299-8. Available from: doi:10.1109/SPEEDAM.2012.6264545

Publication language
English (en)