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A primary-switched line-side converter using zero-voltage switching
KTH, Superseded Departments, Electrical Systems.ORCID iD: 0000-0002-8565-4753
KTH, Superseded Departments, Electrical Systems.ORCID iD: 0000-0001-7330-146X
2001 (English)In: IEEE transactions on industry applications, ISSN 0093-9994, E-ISSN 1939-9367, Vol. 37, no 6, 1824-1831 p.Article in journal (Refereed) Published
Abstract [en]

A new primary-switched ac/dc converter and its modulation are presented. It employs a single- or three-phase transformer, with a matrix converter (primary) and a conventional two-level converter (secondary). This allows galvanic isolation at medium-frequency zero-voltage primary commutation and five line-side voltage levels. Two distinct modulation methods are explained in detail, and it is shown how a combination of these allows optimal operation in terms of efficiency and voltage harmonics. Measured waveforms on a 30-kW prototype confirm the expected performance.

Place, publisher, year, edition, pages
2001. Vol. 37, no 6, 1824-1831 p.
Keyword [en]
AC-DC converter, line-side power conversion, medium-frequency transformer, railway propulsion
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Järnvägsgruppen - Elsystem
Identifiers
URN: urn:nbn:se:kth:diva-21133DOI: 10.1109/28.968197ISI: 000172432800037OAI: oai:DiVA.org:kth-21133DiVA: diva2:339830
Note

NR 20160427

Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2016-04-27Bibliographically approved

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Norrga, StaffanÖstlund, Stefan

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