Energy transfer analysis for capacitor voltage balancing of modular multilevel converters

Binbin Li, Rui Li, Barry W. Williams, Dianguo Xu

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

7 Citations (Scopus)
40 Downloads (Pure)

Abstract

Voltage balancing between sub-module (SM) capacitors is essential for reliable operation of the modular multilevel converter (MMC). To facilitate design and understanding of the balancing controllers, this study presents an energy transfer analysis for MMC, which explains how the energy can be independently transmitted from/to one phase, between the upper and lower arms, and among the SMs, of an MMC. Using this analysis, the variables which can be utilized to achieve capacitor voltage balancing are identified. Validity of this study has been verified by experimental results based on a three-phase MMC prototype.
Original languageEnglish
Title of host publication2016 IEEE Transportation Electrification Conference and Expo (ITEC)
Place of PublicationPiscataway
PublisherIEEE
ISBN (Electronic)9781509004027
ISBN (Print)9781509004041
DOIs
Publication statusPublished - 25 Jul 2016
Event2016 IEEE Transportation Electrification Conference and Expo - Adoba Hotel Dearborn, Dearborn, United States
Duration: 27 Jun 201629 Jun 2016
http://itec-conf.com/previous-itecs/

Conference

Conference2016 IEEE Transportation Electrification Conference and Expo
Abbreviated titleITEC 2016
CountryUnited States
CityDearborn
Period27/06/1629/06/16
Internet address

Keywords

  • energy exchange
  • voltage control
  • capacitors
  • converters
  • frequency control
  • resonant frequency
  • protypes

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  • Cite this

    Li, B., Li, R., Williams, B. W., & Xu, D. (2016). Energy transfer analysis for capacitor voltage balancing of modular multilevel converters. In 2016 IEEE Transportation Electrification Conference and Expo (ITEC) IEEE. https://doi.org/10.1109/ITEC.2016.7520283