Soft-Switched Interleaved Boost Converters for High Step-Up and High-Power Applications

This paper proposes a generalized scheme of new soft-switching interleaved boost converters that is suitable for high step-up and high-power applications. The proposed converter is configured with proper numbers of series and parallel connected basic cells in order to fulfill the required output voltage and power levels, respectively. This leads to flexibility in device selection resulting in high component availability and easy thermal distribution. Design examples of determining the optimum circuit configuration for given output voltage and power level are presented. Experimental results from a 1.5-kW prototype are provided to validate the proposed concept.

[1]  Sewan Choi,et al.  Soft-Switched CCM Boost Converters With High Voltage Gain for High-Power Applications , 2010, IEEE Transactions on Power Electronics.

[2]  Wuhua Li,et al.  High step-up soft switching interleaved boost converters with cross-winding-coupled inductors and reduced auxiliary switch number , 2009 .

[3]  Wuhua Li,et al.  Interleaved ZVT Boost Converters with Winding-Coupled Inductors and Built-In LC Low Pass Output Filter Suitable for Distributed Fuel Cell Generation System , 2007, 2007 IEEE Power Electronics Specialists Conference.

[4]  Tsorng-Juu Liang,et al.  Analysis of integrated boost-flyback step-up converter , 2005 .

[5]  M. S. Makowski.  Realizability conditions and bounds on synthesis of switched-capacitor DC-DC voltage multiplier circuits , 1997 .

[6]  Luis Martinez-Salamero,et al.  Interleaved converters operation based on CMC , 1999 .

[7]  P. Enjeti,et al.  A High Gain Transformer-Less DC-DC Converter for Fuel-Cell Applications , 2005, 2005 IEEE 36th Power Electronics Specialists Conference.

[8]  Po-Wa Lee,et al.  Steady-state analysis of an interleaved boost converter with coupled inductors , 2000, IEEE Trans. Ind. Electron..

[9]  B. Davat,et al.  Design of a High Power, High Step-Up Non-isolated DC-DC Converter for Fuel Cell applications , 2006, 2006 IEEE Vehicle Power and Propulsion Conference.

[10]  K. Hirachi,et al.  Circuit configuration of bidirectional DC/DC converter specific for small scale load leveling system , 2002, Proceedings of the Power Conversion Conference-Osaka 2002 (Cat. No.02TH8579).

[11]  Adrian Ioinovici,et al.  Switched-Capacitor/Switched-Inductor Structures for Getting Transformerless Hybrid DC–DC PWM Converters , 2008, IEEE Transactions on Circuits and Systems I: Regular Papers.

[12]  Fred C. Lee,et al.  High-efficiency, high step-up DC-DC converters , 2003 .

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

[14]  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.

[15]  R.N.A.L. Silva,et al.  Soft-switching interleaved boost converter with high voltage gain , 2008, 2008 IEEE Power Electronics Specialists Conference.

[16]  Adrian Ioinovici,et al.  Boost converter with high voltage gain using a switched capacitor circuit , 2003, Proceedings of the 2003 International Symposium on Circuits and Systems, 2003. ISCAS '03..

[17]  Rong-Jong Wai,et al.  High-Efficiency DC-DC Converter With High Voltage Gain and Reduced Switch Stress , 2007, IEEE Transactions on Industrial Electronics.

[18]  Adrian Ioinovici,et al.  Transformerless DC-DC Converters With A Very High DC Line-To-Load Voltage Ratio , 2004, J. Circuits Syst. Comput..

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

[20]  Sewan Choi,et al.  Experimental verification of floating-output interleaved-input DC-DC high-gain transformer-less converter topologies , 2008, 2008 IEEE Power Electronics Specialists Conference.

[21]  Y. Berkovich,et al.  Switched Coupled-Inductor Cell for DC-DC Converters with Very Large Conversion Ratio , 2011, IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics.