A three-port high step-up DC-DC converter for PV system

The battery charger and the high step-up isolated DC-DC converter can be combined in a single unit with the three-port converter topology. In the proposed converter, renewable energy sources, the battery and high voltage output are combined together, and renewable energy sources and battery are low voltage parts isolated with high voltage output. In order to control energy transfer path, three working modes are introduced. PWM and phase-shifted control are employed to transfer energy to high voltage output or battery. A 250W prototype is built. Effectiveness of the proposed topology is verified by experimental results.

[1]  Zhan Wang,et al.  Asymmetrical Duty Cycle Control and Decoupled Power Flow Design of a Three-port Bidirectional DC-DC Converter for Fuel Cell Vehicle Application , 2012, IEEE Transactions on Power Electronics.

[2]  Wuhua Li,et al.  A Family of Interleaved DC–DC Converters DeducedFrom a Basic Cell With Winding-Cross-CoupledInductors (WCCIs) for High Step-Upor Step-Down Conversions , 2008, IEEE Transactions on Power Electronics.

[3]  Jorge L. Duarte,et al.  Family of multiport bidirectional DC¿DC converters , 2006 .

[4]  Wuhua Li,et al.  Design and Analysis of Isolated ZVT Boost Converters for High-Efficiency and High-Step-Up Applications , 2007, IEEE Transactions on Power Electronics.

[5]  Runruo Chen,et al.  Full-Bridge Three-Port Converters With Wide Input Voltage Range for Renewable Power Systems , 2012, IEEE Transactions on Power Electronics.

[6]  L. Solero,et al.  Design of multiple-input power converter for hybrid vehicles , 2004, IEEE Transactions on Power Electronics.

[7]  Issa Batarseh,et al.  An Integrated Four-Port DC/DC Converter for Renewable Energy Applications , 2010, IEEE Transactions on Power Electronics.

[8]  B.G. Dobbs,et al.  A multiple-input DC-DC converter topology , 2003, IEEE Power Electronics Letters.

[9]  M. Marchesoni,et al.  New DC–DC Converter for Energy Storage System Interfacing in Fuel Cell Hybrid Electric Vehicles , 2007, IEEE Transactions on Power Electronics.

[10]  Yi Zhao,et al.  High-Step-Up and High-Efficiency Fuel-Cell Power-Generation System With Active-Clamp Flyback–Forward Converter , 2012, IEEE Transactions on Industrial Electronics.

[11]  Xinbo Ruan,et al.  Isolated Single Primary Winding Multiple-Input Converters , 2011, IEEE Transactions on Power Electronics.

[12]  J.L. Duarte,et al.  Transformer-Coupled Multiport ZVS Bidirectional DC–DC Converter With Wide Input Range , 2008, IEEE Transactions on Power Electronics.

[13]  Wuhua Li,et al.  A Family of Isolated Interleaved Boost and Buck Converters With Winding-Cross-Coupled Inductors , 2008, IEEE Transactions on Power Electronics.

[14]  N. Mohan,et al.  Three-Port Series-Resonant DC–DC Converter to Interface Renewable Energy Sources With Bidirectional Load and Energy Storage Ports , 2009, IEEE Transactions on Power Electronics.

[15]  Yi Zhao,et al.  PWM Plus Phase Angle Shift (PPAS) Control Scheme for Combined Multiport DC/DC Converters , 2012, IEEE Transactions on Power Electronics.

[16]  I. Batarseh,et al.  Modeling and Control of Three-Port DC/DC Converter Interface for Satellite Applications , 2010, IEEE Transactions on Power Electronics.

[17]  Wuhua Li,et al.  Review of Nonisolated High-Step-Up DC/DC Converters in Photovoltaic Grid-Connected Applications , 2011, IEEE Transactions on Industrial Electronics.

[18]  J.L. Duarte,et al.  Multi-input bidirectional DC-DC converter combining DC-link and magnetic-coupling for fuel cell systems , 2005, Fourtieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005..

[19]  Zhe Zhang,et al.  Four Quadrants Integrated Transformers for Dual-Input Isolated DC–DC Converters , 2012, IEEE Transactions on Power Electronics.

[20]  Hong-Seok Song,et al.  Idling Port Isolation Control of Three-Port Bidirectional Converter for EVs , 2012, IEEE Transactions on Power Electronics.

[21]  J.W. Kolar,et al.  An Isolated Three-Port Bidirectional DC-DC Converter With Decoupled Power Flow Management , 2008, IEEE Transactions on Power Electronics.