期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 26, 期 4, 页码 1228-1236出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2010.2072966
关键词
DC-DC converters; dual active bridge (DAB) converter; modulation strategy; soft switching
资金
- Universidad Nacional de Rio Cuarto
- Universidad Nacional del Sur
- Agencia Nacional de Promocion Cientifica y Tecnologica
- Consejo Nacional de Investigaciones Cientificas y Tecnicas
- DSP University
A new modulation strategy that allows operating the dual active bridge (DAB) dc-dc converter under soft switching in the whole operating range is proposed. This strategy is ruled by imposing a certain modulation index in one of the two bridges and a phase shift between the transformer primary and secondary voltages. Moreover, the proposed algorithm reduces the reactive power and thus reducing the converter conduction losses. An experimental prototype was implemented and some experimental results are presented to validate the theoretical analysis. The experimental results reveal that the overall efficiency of the DAB topology can be improved up to 20% by implementing the proposed modulation strategy instead of the conventional one.
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