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  • Kuder, Manuel (author)

Exponential Modular Multilevel Converter for Low Voltage Applications

  • Article/chapterEnglish2019

Publisher, publication year, extent ...

  • 2019
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:6815c487-a8f3-4228-9156-93bcbba9dd96
  • https://doi.org/10.23919/EPE.2019.8915156DOI
  • https://research.chalmers.se/publication/516619URI
  • https://research.chalmers.se/publication/516053URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:kon swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • This paper presents the structure and control of a single phase Exponential Modular Multilevel Converter (EMMC), which works as a bidirectional AC/DC converter. In addition to the main H-bridge converter, it uses series connected H-bridges with DC link capacitors. The nominal voltage rating of the capacitors is increased with each module by factor of two. In this manner, the number of output voltage levels exponentially increases with the number of series connected H-bridges. By using low-voltage MOSFETs it is possible to achieve a very high efficiency, especially at partial loading. The high number of voltage levels reduces the output voltage THD, while using a low switching frequency. Thus, the required grid filter size can be substantially reduced. Furthermore, the additional capacitor modules increase the nominal output voltage at the AC side, so that the flow of the active and reactive power can be dynamically adjusted. Therefore, the EMMC could be used, for instance, as a vehicle charger directly connected to the grid.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Kersten, Anton,1991Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)kersten (author)
  • Bergmann, LukasTechnische Universität München (TUM),Technical University of Munich (TUM) (author)
  • Eckerle, RichardChalmers tekniska högskola,Chalmers University of Technology (author)
  • Helling, Florian (author)
  • Weyh, Thomas (author)
  • Chalmers tekniska högskolaTechnische Universität München (TUM) (creator_code:org_t)

Related titles

  • In:2019 21st European Conference on Power Electronics and Applications, EPE 2019 ECCE Europe, s. 1-11

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