Single-leg flying capacitor converter voltage balancing dynamics analysis accounting for PWM iron loss

Alex Ruderman, Boris Reznikov, Steven Thielemans

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

3 Citations (Scopus)

Abstract

Natural voltage balancing dynamics analysis for flying capacitor converter may be carried out in time domain using switched systems analysis technique based on stitching analytical solutions for consecutive switching subintervals. In conjunction with the small parameter assumption, it allows obtaining closed-form approximate analytical solutions. PWM induced eddy current iron core loss mechanism that is accounted for in equivalent scheme by a large parallel resistance speeds up natural voltage balancing dynamics. Presented simple analytical solutions for 3- and 4-level single-leg flying capacitor converter reveal the dependences on load parameters, carrier frequency, and normalized DC voltage command (AC modulation index).

Original languageEnglish
Title of host publication8th International Conference on Power Electronics - ECCE Asia
Subtitle of host publication"Green World with Power Electronics", ICPE 2011-ECCE Asia
Pages977-982
Number of pages6
DOIs
Publication statusPublished - Aug 31 2011
Externally publishedYes
Event8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia - Jeju, Korea, Republic of
Duration: May 30 2011Jun 3 2011

Publication series

Name8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia

Other

Other8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia
CountryKorea, Republic of
CityJeju
Period5/30/116/3/11

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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