Steady state analysis of the commutating LC filter based dual active bridge for the isolation stage of power electronic transformer

This paper presents a complete steady-state analysis of the novel commutating LC-filter based dual active bridge (DAB). Such converter is aimed to be used in the isolation stage of the power electronics transformer. The topology consists of the LC filter coupled with a DAB. The LC filter allows to boost the input voltage by means of shoot-through state of the inverter switches. The output power of the converter is controlled by means shoot-through and the special phase shift modulation of the DAB. The simulation results of the proposed converter are provided.

[1]  H. du T. Mouton,et al.  The solid-state transformer concept: A new era in power distribution , 2009, AFRICON 2009.

[2]  Javier Sebastian,et al.  An overall study of a Dual Active Bridge for bidirectional DC/DC conversion , 2010, 2010 IEEE Energy Conversion Congress and Exposition.

[3]  Fred C. Lee,et al.  A soft-switched, full-bridge boost converter employing an active-clamp circuit , 1996, PESC Record. 27th Annual IEEE Power Electronics Specialists Conference.

[4]  E. Salary,et al.  Power quality improvement based on novel power electronic transformer , 2011, 2011 2nd Power Electronics, Drive Systems and Technologies Conference.

[5]  Florian Krismer,et al.  Modeling and optimization of bidirectional dual active bridge DC-DC converter topologies , 2010 .

[6]  Dmitri Vinnikov,et al.  Analysis of Operating Modes of the Step-Up Dc/Dc Converter with a Commutating LC-Filter , 2011 .

[7]  Alex Q. Huang,et al.  High-voltage high-frequency transformer design for a 7.2kV to 120V/240V 20kVA solid state transformer , 2010, IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society.

[8]  Fred C. Lee,et al.  New start-up schemes for isolated full-bridge boost converters , 2000, APEC 2000. Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.00CH37058).

[9]  Deepak Divan,et al.  Dual active bridge buck-boost converter , 2009, 2009 IEEE Energy Conversion Congress and Exposition.

[10]  Dmitri Vinnikov,et al.  Analysis of current doubler rectifier based high frequency isolation stage for intelligent transformer , 2011, 2011 7th International Conference-Workshop Compatibility and Power Electronics (CPE).

[11]  Yaohua Li,et al.  Design of Power Electronic Transformer Based on Modular Multilevel Converter , 2012 .

[12]  P. Enjeti,et al.  A Three-Phase Current-Fed DC/DC Converter With Active Clamp for Low-DC Renewable Energy Sources , 2008, IEEE Transactions on Power Electronics.

[13]  Fei Wang,et al.  Review of solid state transformer in the distribution system: From components to field application , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).