Abstract
Bidirectional energy transfer capability is the central part of a lot of modern power conversion systems. Preferably, for reduction of size, weight and cost these systems use a single high efficiency power electronic conversion system. A dual active bridge converter having two DC-AC converters connected back to back through an AC inductor/transformer is a common topology used for obtaining high efficiency bidirectional power conversion. Some characteristic features of the DAB converter topology are bidirectional power flow capability, inherent soft switching, high power density, high efficiency, galvanic isolation and low number of passive components. In this paper, comparative study of Dual active bridge converter is done with flyback converters. Also efficiency of these converters are compared. Switching of devices for the two converters is also shown. Flyback converter is operated in both buck as well as boost mode. DAB is simulated in SPS (Single phase shift) mode.
Published Version
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