Bidirectional modular multilevel DC-DC converter control and efficiency improvements through separate module control method

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11 Citations (Scopus)

Abstract

This paper introduces a separate control method for modules of the bidirectional modular multilevel dc-dc power converter in order to improve overall converter efficiency. The proposed multilevel power converter topology is based on a Dual Active Bridge (DAB) converter as elementary electrical building block - module. Using efficiency curves it is determined how the modules should be separately controlled in order to decrease the total power converter losses, thus optimizing the total efficiency. The bidirectional modular multilevel dc-dc converter finds its application in energy extraction from Electro Active Polymer Wave Energy Converters (EAPWECs). It is shown that achieved power converter efficiency improvements have significant impact on the produced power in EAPWEC systems. Efficiencies of the power converter are modeled and verified with experimental measurements on the DAB module to support loss model.
Original languageEnglish
Title of host publication2013 IEEE Energy Conversion Congress and Exposition
Subtitle of host publicationProceedings
EditorsP Wung
Place of PublicationPiscataway, NJ, USA
PublisherIEEE
Pages2038-2043
Number of pages6
ISBN (Electronic)978-1-4799-0336-8
ISBN (Print)978-1-4799-0335-1
DOIs
Publication statusPublished - 2013
EventIEEE ECCE 2013, Denver, Colorado - Piscataway, NJ, USA
Duration: 15 Sep 201319 Sep 2013

Conference

ConferenceIEEE ECCE 2013, Denver, Colorado
Period15/09/1319/09/13

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