Charge-based ZVS soft switching analysis of a single-stage dual active bridge AC-DC converter

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

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

27 Citations (Scopus)

Abstract

A semi-analytical modulation scheme to operate a single-phase, single-stage dual active bridge (DAB) AC-DC converter under full-operating-range zero voltage switching (ZVS) is proposed. The converter topology consists of a DAB DC-DC converter, receiving a rectified AC line voltage via a synchronous rectifier. ZVS modulation strategies previously proposed in literature are either based on current-based (CB) or energy-based (EB) ZVS analyses. The combined phase-shift, duty-cycle, and switching frequency modulation proposed in this paper relies on a novel, current-dependent charge-based (CDCB) ZVS analysis, taking into account the commutation charge of the (parasitic) switch capacitances as well as the time dependency of the commutation currents. Thereby, commutation inductance is shown to be an essential element in achieving full-operating-range ZVS. Experimental results obtained from a 3.7 kW bidirectional electric vehicle battery charger which interfaces a 400 V DC-bus with the 230 Vac, 50 Hz utility grid are given to validate the analysis and practical feasibility of the proposed strategy.
Original languageEnglish
Title of host publicationProceedings of the 5th IEEE Energy Conversion Congress and Exposition (ECCE 2013), 15-19 September 2013, Denver Colorado (USA).
PublisherInstitute of Electrical and Electronics Engineers
Pages4820-4829
DOIs
Publication statusPublished - 2013
Event5th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2013) - "Colorado Convention Center", Denver, United States
Duration: 15 Sep 201319 Sep 2013
Conference number: 5
http://2015.ecceconferences.org/wp-content/uploads/2015/08/ecce13_program_book-FINAL.pdf

Conference

Conference5th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2013)
Abbreviated titleECCE 2013
CountryUnited States
CityDenver
Period15/09/1319/09/13
Internet address

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