An Alternative-Fed Dual-Active-Bridge DC/DC Converter With Wide Voltage Gains and Low Current Ripples

Owing to their distinct principles, voltage-fed dual-active-bridge (DAB) and current-fed DAB converters each exhibit unique strengths and weaknesses, making them appropriate for varying applications. To increase the application flexibility, an alternative-fed dual-active-bridge (AF-DAB) dc/dc conver...

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Bibliographic Details
Published inIEEE transactions on power electronics Vol. 39; no. 7; pp. 7823 - 7827
Main Authors Zhang, Yue, Hou, Nie, Li, Yunwei
Format Journal Article
LanguageEnglish
Published New York IEEE 01.07.2024
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Bridge circuits
Capacitors
Current ripples
dc/dc
dual active bridge (DAB)
Electric bridges
Electric converters
Electric potential
Inductors
Low currents
PD control
Switches
Topology
Voltage
Voltage control
Voltage converters (DC to DC)
voltage gains
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Summary:Owing to their distinct principles, voltage-fed dual-active-bridge (DAB) and current-fed DAB converters each exhibit unique strengths and weaknesses, making them appropriate for varying applications. To increase the application flexibility, an alternative-fed dual-active-bridge (AF-DAB) dc/dc converter, with the merits of wide voltage gains and low current ripples, is proposed in this letter. Through the alternative-fed method, the AF-DAB converter can integrate both DABs' merits while eschewing unsuitable areas. Ultimately, the operation schemes and control structure are elaborated, and the experimental results are presented to verify the superior performance of the proposed topology.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2024.3384278