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| Single-Primary-Winding Voltage-Fed Multiple-Input Full-Bridge Converter |
| Wang Qin, Ruan Xinbo, Zhou Chen, Liu Fuxin, Jin Ke |
| Nanjing University of Aeronautics and Astronautics Jiangsu Key Laboratory of New Energy Generation and Power Conversion Nanjing 210016 China |
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Abstract Multi-input full-bridge converter with multiple primary windings can power energy from multiple input sources to the load simultaneously or independently. However, with the increase of the number of input sources, the number of the primary windings increases as well, which results in complex structure of the transformer. In order to simplify the transformer structure, this paper proposes a family of single-primary-winding(SPW) voltage-fed multi-input full-bridge converters, which are derived by replacing the input voltage source of the single-input full-bridge converter with the series or parallel-connected non-isolated pulsating voltage source cells(PVSCs). A SPW voltage-fed double- input full-bridge converter with two buck PVSCs in series is analyzed as the example. The operation principle and control strategy are illustrated, and the filter inductor current ripple with different switching sequences of the PVSCs is analyzed. Finally, a prototype is built and tested, and the experimental results are presented.
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Received: 18 July 2011
Published: 28 November 2013
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2013, Vol. 28 
