IIIE 20352
INSTITUTO DE INVESTIGACIONES EN INGENIERIA ELECTRICA "ALFREDO DESAGES"
Unidad Ejecutora - UE
artículos
Título:
Modulation Strategy to Operate the Dual Active Bridge DC-DC Converter Under Soft-Switching in the Whole Operating Range
Autor/es:
GERMÁN G. OGGIER; GUILLERMO O. GARCÍA; ALEJANDRO R. OLIVA
Revista:
IEEE TRANSACTIONS ON POWER ELECTRONICS
Editorial:
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Referencias:
Año: 2010 vol. 26 p. 1228 - 1236
ISSN:
0885-8993
Resumen:
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.
