Voltage balance modeling in single-leg flying capacitor multicell converters employing a balance booster circuit

Saeedeh Dargahi, Mostafa Abarzadeh, Arash Khoshkbar Sadigh, Vahid Dargahi

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

This paper provides a mathematical model for voltage natural balancing process in single-leg flying capacitor multicell converters by taking into account the balance booster circuit effect. The analysis leads to state-space model of the converter. This analytic model of the flying capacitor multicell converters can be utilized to investigate the start-up and steady states of flying capacitor voltages. To provide verification, numeric results pertaining to a single-leg capacitorclamped multicell converter's analytic model are presented in different cases and compared against simulation results. Moreover experimental results taken from a laboratory prototype are also presented. An excellent match between experimental and numeric results confirms the validity of the proposed analytic model for the single-leg flying capacitor multicell converters.

Original languageEnglish (US)
Pages (from-to)4697-4704
Number of pages8
JournalInternational Review of Electrical Engineering
Volume7
Issue number4
StatePublished - Jan 1 2012

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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