Virtual Converter Based Modeling and Control of Bidirectional Integrated Converters

Integrated converter topologies are made up of two or more basic converter stages (buck, boost, DAB, LLC resonant converter, etc.) which are merged together such that certain switches are shared among stages, thus reducing the total component count. A new integrated topology combining an interleaved...

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Bibliographic Details
Published in2023 IEEE Energy Conversion Congress and Exposition (ECCE) pp. 3452 - 3458
Main Authors Kercher, Michael, Yu, Wensong
Format Conference Proceeding
LanguageEnglish
Published IEEE 29.10.2023
Subjects
average model
bidirectional
DC-DC
Hardware
Integrated circuit modeling
integrated converter
large signal
Mathematical models
Power system measurements
Resonant converters
Simulation
small signal
Topology
Virtual converter model
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Summary:Integrated converter topologies are made up of two or more basic converter stages (buck, boost, DAB, LLC resonant converter, etc.) which are merged together such that certain switches are shared among stages, thus reducing the total component count. A new integrated topology combining an interleaved buck and DAB into a bidirectional isolated DC-DC converter is developed and design considerations are discussed. The Virtual Converter Model, a novel method for obtaining large and small signal models for any integrated converter, simplifies the difficult problem of characterizing complex integrated converters by dividing them into their basic converter stages without loss of mathematical equivalence. The Virtual Converter equivalent circuit can then be characterized by existing, well-known methods. The Virtual Converter Model is presented for the bidirectional isolated DC-DC converter and validated through simulation and hardware testing.
ISSN:2329-3748
DOI:10.1109/ECCE53617.2023.10362869