Publication: Optimal design of a high-efficiency bidirectional isolated DC-DC converter across a wide range of power transfer
Date
2012
Authors
Tan N.M.L.
Abe T.
Akagi H.
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Abstract
This paper discusses an optimal operating frequency range and optimal switching dead times for a 6-kW, full-bridge, bidirectional isolated dc-dc converter with focus on improving converter efficiency. The optimal frequency of the dc-dc converter is defined by making its frequency-dependent loss equal to its frequency-independent loss. The maximum efficiency of the dc-dc converter operating at 4 kHz is measured at 98.1% during battery charging and at 98.2% during battery discharging. The converter maintains a high efficiency of more than 97% in a wide range of power transfer. � 2012 IEEE.
Description
Keywords
HVDC power transmission , Optimization , Bidirectional isolated dc-dc converter , Converter efficiency , Frequency-dependent loss , Full-bridge , High-efficiency , Maximum Efficiency , Operating frequency , Optimal design , Optimal frequency , Optimal switching , Power transfers , DC-DC converters