Abstract
Bidirectional isolated DC/DC converter is the core component of power electronic transformer (PET). And bidirectional series resonant DC/DC converter (SRC), dual active bridge DC/DC converter (DAB) and dual bridge series resonant DC/DC converter (DBSRC) are three great candidates for PET application. The operation principles and control methods of these converters are briefly analyzed in this paper. Then, the performance in current stress, output voltage characteristic, hard-switching current and system efficiency are compared from the perspective of simulation and experiments, whose results help to select a suitable DC/DC topology for PET.
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