Asymmetrical Full-bridge Converter With High-Voltage Gain

This paper proposes an asymmetrical full-bridge converter with high-voltage gain. The control of the proposed converter is implemented with the asymmetrical pulsewidth modulation technique. The proposed converter achieves zero-voltage switching (ZVS) of all power switches. Zero-current switching (ZCS) of output diodes is also achieved. The proposed converter can provide high-voltage gain and the voltages across the semiconductor devices are effectively clamped. Steady-state analysis of the proposed converter is presented. A laboratory prototype of the proposed converter is developed, and its experimental results are presented for validation.

[1]  Jiann-Fuh Chen,et al.  Transformerless DC–DC Converters With High Step-Up Voltage Gain , 2009, IEEE Transactions on Industrial Electronics.

[2]  Y. Jang,et al.  A New PWM ZVS Full-Bridge Converter , 2007, IEEE Transactions on Power Electronics.

[3]  S. Kotaiah,et al.  A Full-Bridge DC–DC Converter WithZero-Voltage-Switching Overthe Entire Conversion Range , 2008, IEEE Transactions on Power Electronics.

[4]  Esam H. Ismail,et al.  A Family of Single-Switch PWM Converters With High Step-Up Conversion Ratio , 2008, IEEE Transactions on Circuits and Systems I: Regular Papers.

[5]  X. Ruan,et al.  A Novel Zero-Voltage-Switching PWM Full-Bridge Converter , 2007, 2007 IEEE Power Electronics Specialists Conference.

[6]  Rong-Jong Wai,et al.  High-Performance Stand-Alone Photovoltaic Generation System , 2008, IEEE Transactions on Industrial Electronics.

[7]  Caisheng Wang,et al.  Power Management of a Stand-Alone Wind/Photovoltaic/Fuel Cell Energy System , 2008, IEEE Transactions on Energy Conversion.

[8]  M Ordonez,et al.  Soft-Switching Techniques for Efficiency Gains in Full-Bridge Fuel Cell Power Conversion , 2011, IEEE Transactions on Power Electronics.

[9]  R. Redl,et al.  A novel soft-switching full-bridge DC/DC converter: Analysis, design considerations, and experimental results at 1.5 kW, 100 kHz , 1990, 21st Annual IEEE Conference on Power Electronics Specialists.

[10]  E. Adib,et al.  Zero-Voltage Transition Current-Fed Full-Bridge PWM Converter , 2009, IEEE Transactions on Power Electronics.

[11]  N. Mohan,et al.  Asymmetrical duty cycle permits zero switching loss in PWM circuits with no conduction loss penalty , 1991, Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting.

[12]  R. Gules,et al.  Voltage Multiplier Cells Applied to Non-Isolated DC–DC Converters , 2008, IEEE Transactions on Power Electronics.

[13]  Yungtaek Jang,et al.  A new PWM ZVS full-bridge converter , 2007, Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, 2006. APEC '06..

[14]  A. Fiedler,et al.  Investigation of asymmetrical phase-shifted full bridge [power convertors] , 1995, Proceedings of IECON '95 - 21st Annual Conference on IEEE Industrial Electronics.

[15]  M. Jovanovic,et al.  A new family of full-bridge ZVS converters , 2004, IEEE Transactions on Power Electronics.

[16]  Rong-Jong Wai,et al.  Grid-Connected Photovoltaic Generation System , 2008, IEEE Transactions on Circuits and Systems I: Regular Papers.

[17]  Fred C. Lee,et al.  Active-clamp DC/DC converters using magnetic switches , 2001, APEC 2001. Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.01CH37181).

[18]  Y. Darroman,et al.  Synthesis of Tapped-Inductor Switched-Mode Converters , 2007, IEEE Transactions on Power Electronics.

[19]  Jun Li,et al.  A High-Efficiency PV Module-Integrated DC/DC Converter for PV Energy Harvest in FREEDM Systems , 2011, IEEE Transactions on Power Electronics.

[20]  Jiann-Fuh Chen,et al.  Multicascoded Sources for a High-Efficiency Fuel-Cell Hybrid Power System in High-Voltage Application , 2011, IEEE Transactions on Power Electronics.

[21]  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).