Bi-directional power management and fault tolerant feature in a 5-kW multilevel dc-dc converter with modular architecture

A 5-kW multilevel modular capacitor-clamped dc–dc converter (MMCCC) with bi-directional power management and real-time fault bypassing capability will be presented in this study. The modular structure of the MMCCC topology was utilised to build this 5-kW converter with necessary redundancy and hot swap feature for industrial and automotive applications including a future plug-in hybrid or fuel-cell powered all electric vehicles. Moreover, the circuit has flexible conversion ratio that leads to establish bi-directional power management for automotive applications mitigating the boost voltage for the fuel-cell or dual battery architecture. In addition, the MMCCC exhibits better component utilisation compared to many capacitor-clamped or classical dc–dc converters based on inductive energy transfer mechanism. Thus, the MMCCC circuit can be made more compact and reliable compared to many other dc–dc converters for high-power applications.

[1]  A. Khaligh,et al.  Power electronics intensive solutions for advanced electric, hybrid electric, and fuel cell vehicular power systems , 2006, IEEE Transactions on Power Electronics.

[2]  Khai D. T. Ngo,et al.  Steady-state analysis and design of a switched-capacitor DC-DC converter , 1994 .

[3]  Leon M. Tolbert,et al.  Temperature dependency of MOSFET device characteristics in 4H- and 6H-silicon carbide (SiC) , 2004 .

[4]  Faisal Habib Khan.  Modular DC-DC Converters , 2007 .

[5]  Adrian Ioinovici,et al.  Inductorless DC-to-DC converter with high power density , 1994, IEEE Trans. Ind. Electron..

[6]  Fan Zhang,et al.  A magnetic-less DC-DC converter for dual voltage automotive systems , 2002 .

[7]  L. Tolbert,et al.  An SOI-based High-Voltage, High-Temperature Gate-Driver for SiC FET , 2007, 2007 IEEE Power Electronics Specialists Conference.

[8]  Kuo-Ho Su,et al.  Supervisory enhanced genetic algorithm controller design and its application to decoupling induction motor drive , 2005 .

[9]  E. Bayer,et al.  Optimized control of the "flying"-capacitor operating voltage in "gear-box"-charge-pumps-the key factor for a smooth operation , 2003, IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03..

[10]  Adrian Ioinovici,et al.  Step-up DC power supply based on a switched-capacitor circuit , 1995, IEEE Trans. Ind. Electron..

[11]  Leon M. Tolbert,et al.  A Multilevel Modular Capacitor Clamped DC-DC Converter , 2006 .

[12]  John G. Kassakian.  Automotive electrical systems-the power electronics market of the future , 2000, APEC 2000. Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.00CH37058).

[13]  Fan Zhang,et al.  Study of the multilevel converters in DC-DC applications , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[14]  Khai D. T. Ngo,et al.  Steady-state analysis and design of a switched-capacitor DC-DC converter , 1992, PESC '92 Record. 23rd Annual IEEE Power Electronics Specialists Conference.

[15]  F.Z. Peng,et al.  A low cost, triple-voltage bus DC-DC converter for automotive applications , 2005, Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005..

[16]  Leon M. Tolbert,et al.  ENHANCING POWER ELECTRONIC DEVICES WITH WIDE BANDGAP SEMICONDUCTORS , 2006 .

[17]  Chi K. Tse,et al.  On lossless switched-capacitor power converters , 1995 .

[18]  K.D.T. Ngo,et al.  Power switched-capacitor DC-DC converter: analysis and design , 1997, IEEE Transactions on Aerospace and Electronic Systems.

[19]  Fan Zhang,et al.  Power losses and efficiency analysis of multilevel dc-dc converters , 2005, Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005..

[20]  David J. Perreault,et al.  The future of electronics in automobiles , 2001, Proceedings of the 13th International Symposium on Power Semiconductor Devices & ICs. IPSD '01 (IEEE Cat. No.01CH37216).

[21]  Andrabadu K. P. Viraj,et al.  Analysis of switched capacitor DC-DC step down converter , 2004, 2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512).

[22]  L.M. Tolbert,et al.  Multilevel DC–DC Power Conversion System With Multiple DC Sources , 2008, IEEE Transactions on Power Electronics.

[23]  L. Tolbert,et al.  Impact of SiC Power Electronic Devices for Hybrid Electric Vehicles , 2002 .

[24]  S.R. Sanders,et al.  Analysis and Optimization of Switched-Capacitor DC–DC Converters , 2008, IEEE Transactions on Power Electronics.

[25]  Fan Zhang,et al.  A novel compact DC-DC converter for 42 V systems , 2003, IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03..