Comparative evaluation of soft-switching, bidirectional, isolated AC/DC converter topologies

J. Everts, F. Krismer, J. Van den Keybus, Johan Driesen, J.W. Kolar

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

20 Citations (Scopus)
7 Downloads (Pure)

Abstract

For realizing bidirectional and isolated AC/DC converters, soft-switching techniques/topologies seem to be a favourable choice as they enable a further loss and volume reduction of the system. Contrary to the traditional dual-stage approach, using a power factor corrector (PFC) stage in series with a DC/DC isolation stage, we showed recently that the same functionality can be achieved under full soft-switching operation using a single-stage dual active bridge (DAB) AC/DC converter. This paper investigates the performance of this single-stage approach by comparing it with a state-of-the-art conventional dual-stage concept (both soft-switching converters), where a bidirectional interleaved triangular current mode (TCM) PFC rectifier was chosen in combination with a DAB DC/DC converter. The advantages and drawbacks of each concept are discussed in detail, focusing on the impact of the utilized semiconductor technology and silicon area on the converter efficiency. Furthermore, a comprehensive comparison of power density is allowed by the analytical models that correlate the component losses with their respective volume.
Original languageEnglish
Title of host publicationProceedings of the 27th IEEE Annual Applied Power Electronics Conference and Exposition (APEC 2012), 5-9 February 2012, Orlando, Florida (USA)
PublisherInstitute of Electrical and Electronics Engineers
Pages1067-1074
ISBN (Print)978-1-4577-1215-9
DOIs
Publication statusPublished - 2012
Event27th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2012) - Coronado Springs in Disney World, Orlando, United States
Duration: 5 Feb 20129 Feb 2012
Conference number: 27

Conference

Conference27th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2012)
Abbreviated titleAPEC 2012
CountryUnited States
City Orlando
Period5/02/129/02/12

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