Eight-level dc-ac converter using four-switch extended commutation cells

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Abstract

The extended commutation cell is a four-port, four-switch cell that allows for bidirectional energy transport in two orthogonal directions throughout the cell. By cascading multiple cells a multilevel converter can be constructed with a high number of cells. The voltage across each cell capacitor can be adjusted independently of the load, resulting in high flexibility in output levels. This paper presents the analysis, design and verification of a 4.4kW eight-level dc-ac converter. The capacitor voltage control is operated with closed loop control and the output is operating in open loop. The experimental results are in agreement with the simulations are show the cell's potential for application in multilevel power converters.
Original languageEnglish
Title of host publicationProceedings of the 17th European Conference on Power Electronics and Applications (EPE'15-ECCE Europe), 8-10 September 2015, Geneva, Switzerland
PublisherInstitute of Electrical and Electronics Engineers
Pages1-8
ISBN (Print)9789075815238
DOIs
Publication statusPublished - 2015
Event17th European Conference on Power Electronics and Applications (EPE 2015 ECCE Europe) - Geneva International Conference Centre (CICG), Geneva, Switzerland
Duration: 8 Sep 201510 Sep 2015
Conference number: 17
http://event-epe2015.web.cern.ch/

Conference

Conference17th European Conference on Power Electronics and Applications (EPE 2015 ECCE Europe)
Abbreviated titleEPE '15 ECCE Europe
CountrySwitzerland
CityGeneva
Period8/09/1510/09/15
Other
Internet address

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