A novel ZVZCS half bridge and full bridge DC-DC converter topologies for traction applications

This paper proposes a new ZVZCS DC-DC converter topologies with modified resonant (CLLC-L & CLL-L) and using with the auxiliary cell are presented in this paper. The proposed converter topologies have ZVS and ZCS soft-switching features. In addition to this the proposed converters feature in high order resonance with improved the overall voltage conversion gain. The soft-switched half bridge and full bridge topologies using medium frequency transformer for traction applications is presented in this paper. The major advantages of proposed topologies are able to increase the switching frequency with reduced switching losses. The detailed operation principles, state space analysis and simulations results are presented.

[1]  Drazen Dujic,et al.  Laboratory scale prototype of a power electronic transformer for traction applications , 2011, Proceedings of the 2011 14th European Conference on Power Electronics and Applications.

[2]  A. Steimel.  Electric railway traction in Europe , 1996 .

[3]  F. Vallee,et al.  Comparative Study of Soft-Switched Isolated DC-DC Converters for Auxiliary Railway Supply , 2008, IEEE Transactions on Power Electronics.

[4]  Issa Batarseh,et al.  Resonant converter topologies with three and four energy storage elements , 1994 .

[5]  Jih-Sheng Lai,et al.  A hybrid switching scheme for LLC series-resonant half-bridge dc-dc converter in a wide load range , 2010, 2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[6]  T. Jalakas,et al.  Development of Auxiliary Power Supplies for the 3.0 kV DC Rolling Stock , 2007, 2007 IEEE International Symposium on Industrial Electronics.

[7]  D. Dujic,et al.  Power electronic transformer (PET) converter: Design of a 1.2MW demonstrator for traction applications , 2012, International Symposium on Power Electronics Power Electronics, Electrical Drives, Automation and Motion.

[8]  R. P. Severns,et al.  Topologies for three-element resonant converters , 1992 .

[9]  R. Severns.  Topologies for three element resonant converters , 1990, Fifth Annual Proceedings on Applied Power Electronics Conference and Exposition.

[10]  Keyue Smedley,et al.  An isolated full bridge boost converter with active soft switching , 2001, 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230).

[11]  Wei Chen,et al.  Snubberless Bidirectional DC–DC Converter With New CLLC Resonant Tank Featuring Minimized Switching Loss , 2010, IEEE Transactions on Industrial Electronics.

[12]  D. Howe,et al.  Analysis of 4th-order LCLC resonant power converters , 2004 .