Comparison of natural voltage balancing in three-level H-bridge capacitor-and diode-clamped converters

Alex Ruderman, Boris Reznikov

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

7 Citations (Scopus)

Abstract

Reported are the results of simple analytical comparison of natural voltage balancing mechanisms in three-level H-bridge flying capacitor and diode-clamped converters with carrier-based PWM strategies. While the optimal voltage quality of the nearest level switching is obtained for both of them, natural voltage balancing dynamic properties are essentially different. It is shown that a flying capacitor H-bridge converter with appropriate phase-shifted carrier-based PWM delivers much faster natural voltage balancing dynamics, especially, for small DC voltage commands and AC modulation indices. Along with reduced parts (diodes) count, this gives a three-level H-bridge flying capacitor converter a competitive advantage over other three-level H-bridge converter topologies with natural balancing.

Original languageEnglish
Title of host publication2012 IEEE International Energy Conference and Exhibition, ENERGYCON 2012
Pages76-81
Number of pages6
DOIs
Publication statusPublished - Dec 14 2012
Event2012 IEEE International Energy Conference and Exhibition, ENERGYCON 2012 - Florence, Italy
Duration: Sep 9 2012Sep 12 2012

Publication series

Name2012 IEEE International Energy Conference and Exhibition, ENERGYCON 2012

Other

Other2012 IEEE International Energy Conference and Exhibition, ENERGYCON 2012
CountryItaly
CityFlorence
Period9/9/129/12/12

Keywords

  • Multilevel converter
  • capacitor clamped
  • diode-clamped
  • natural voltage balancing

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

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  • Cite this

    Ruderman, A., & Reznikov, B. (2012). Comparison of natural voltage balancing in three-level H-bridge capacitor-and diode-clamped converters. In 2012 IEEE International Energy Conference and Exhibition, ENERGYCON 2012 (pp. 76-81). [6348254] (2012 IEEE International Energy Conference and Exhibition, ENERGYCON 2012). https://doi.org/10.1109/EnergyCon.2012.6348254