Improved modular multilevel converter topology for low voltage variable speed drives

Luca Tarisciotti, Alessandro Costabeber, Matias Diaz, Roberto Cardenas

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

Abstract

Modular Multilevel Converters (MMC) are becoming increasingly popular for HVDC applications and in medium voltage grids and drives. On the contrary, in high-speed low-voltage drives MMCs are typically not considered a good option due to their relatively low power density. In this paper, a new topology is proposed, enhancing the MMC by coupling upper and lower arm sub-modules via Dual Active Bridge (DAB) converters, leading to a sensible reduction of the sub-module capacitance whilst keeping low control complexity. The resulting topology is applied to a high-speed low voltage permanent magnet drive, analyzing the drive startup and its practical operation. Finally, the theoretical claims are validated with simulation results.

Original languageEnglish
Title of host publicationProceedings - 2020 IEEE International Conference on Industrial Technology, ICIT 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages837-842
Number of pages6
ISBN (Electronic)9781728157542
DOIs
Publication statusPublished - Feb 2020
Event21st IEEE International Conference on Industrial Technology, ICIT 2020 - Buenos Aires, Argentina
Duration: 26 Feb 202028 Feb 2020

Publication series

NameProceedings of the IEEE International Conference on Industrial Technology
Volume2020-February

Conference

Conference21st IEEE International Conference on Industrial Technology, ICIT 2020
Country/TerritoryArgentina
CityBuenos Aires
Period26/02/2028/02/20

Keywords

  • Dual Active Bridge
  • Modular Multilevel Converter

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

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