Center-tapped transformer based bidirectional dc-dc converter with wide input voltage range

In this paper, a center-tapped transformer based bidirectional dc-dc converter with full ZVS operating range is proposed for wide input voltage range applications. The soft switching analysis in different modes is carried out and a simple and effective control strategy, allowing extending the practical ZVS to the whole operating range, is proposed. By dynamically adjusting the phase-shift angle between the two output half-bridges, all power switches can operate with ZVS over the entire load range. At heavy loads, no output-bridge phase-shift angle is required and the two output bridges operate in parallel to minimize the conduction loss. Experimental results are given to verify the effectiveness and advantages of the proposed converter.

[1]  D. Maksimovic,et al.  Automatic voltage and dead time control for efficiency optimization in a Dual Active Bridge converter , 2012, 2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[2]  Wenhua Liu,et al.  Efficiency Characterization and Optimization of Isolated Bidirectional DC–DC Converter Based on Dual-Phase-Shift Control for DC Distribution Application , 2013, IEEE Transactions on Power Electronics.

[3]  Atsuo Kawamura,et al.  Dual active bridge modulation with complete zero voltage switching taking resonant transitions into account , 2011, Proceedings of the 2011 14th European Conference on Power Electronics and Applications.

[4]  A K Jain,et al.  Pwm control of dual active bridge: Comprehensive analysis and experimental verification , 2011, IEEE Transactions on Power Electronics.

[5]  Qingguang Yu,et al.  Extended-Phase-Shift Control of Isolated Bidirectional DC–DC Converter for Power Distribution in Microgrid , 2012, IEEE Transactions on Power Electronics.

[6]  D.M. Divan,et al.  Performance characterization of a high power dual active bridge DC/DC converter , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.

[7]  G.O. Garcia,et al.  Switching Control Strategy to Minimize Dual Active Bridge Converter Losses , 2009, IEEE Transactions on Power Electronics.

[8]  Johan Driesen,et al.  Switching control strategy to extend the ZVS operating range of a Dual Active Bridge AC/DC converter , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[9]  J. W. Kolar,et al.  Switching control strategy for full ZVS soft-switching operation of a Dual Active Bridge AC/DC converter , 2012, 2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[10]  Wenhua Liu,et al.  Current-Stress-Optimized Switching Strategy of Isolated Bidirectional DC–DC Converter With Dual-Phase-Shift Control , 2013, IEEE Transactions on Industrial Electronics.

[11]  Zhiyu Shen,et al.  An adaptive dead-time control scheme for high-switching-frequency dual-active-bridge converter , 2012, 2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[12]  Jing Sun,et al.  Power Flow Characterization of a Bidirectional Galvanically Isolated High-Power DC/DC Converter Over a Wide Operating Range , 2010, IEEE Transactions on Power Electronics.

[13]  Johann W. Kolar,et al.  Charge-based ZVS soft switching analysis of a single-stage dual active bridge AC-DC converter , 2013, 2013 IEEE Energy Conversion Congress and Exposition.

[14]  H. Akagi,et al.  A Bidirectional DC–DC Converter for an Energy Storage System With Galvanic Isolation , 2007, IEEE Transactions on Power Electronics.

[15]  Cassiano Rech,et al.  Integrated Full-Bridge-Forward DC–DC Converter for a Residential Microgrid Application , 2013, IEEE Transactions on Power Electronics.

[16]  Wenhua Liu,et al.  Dead-Time Effect of the High-Frequency Isolated Bidirectional Full-Bridge DC–DC Converter: Comprehensive Theoretical Analysis and Experimental Verification , 2014, IEEE Transactions on Power Electronics.

[17]  D.M. Divan,et al.  A three-phase soft-switched high power density DC/DC converter for high power applications , 1988, Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting.

[18]  T. Abe,et al.  Design and Performance of a Bidirectional Isolated DC–DC Converter for a Battery Energy Storage System , 2012, IEEE Transactions on Power Electronics.

[19]  A. Khaligh,et al.  A Fully Directional Universal Power Electronic Interface for EV, HEV, and PHEV Applications , 2013, IEEE Transactions on Power Electronics.

[20]  Johann W. Kolar,et al.  Accurate Power Loss Model Derivation of a High-Current Dual Active Bridge Converter for an Automotive Application , 2010, IEEE Transactions on Industrial Electronics.

[21]  Dushan Boroyevich,et al.  Dual Active Bridge-Based Battery Charger for Plug-in Hybrid Electric Vehicle With Charging Current Containing Low Frequency Ripple , 2013, IEEE Transactions on Power Electronics.

[22]  German G Oggier,et al.  Modulation strategy to operate the dual active bridge DC-DC converter under soft switching in the whole operating range , 2011, IEEE Transactions on Power Electronics.

[23]  Alireza R. Bakhshai,et al.  A Load Adaptive Control Approach for a Zero-Voltage-Switching DC/DC Converter Used for Electric Vehicles , 2012, IEEE Transactions on Industrial Electronics.

[24]  Zhiyu Shen,et al.  Soft-switching capability analysis of a dual active bridge dc-dc converter , 2009, 2009 IEEE Electric Ship Technologies Symposium.

[25]  Ning Li,et al.  Modified unified PWM control to operate the dual active bridge converters under ZVS in the whole load range , 2013, 2013 IEEE ECCE Asia Downunder.