Active voltage balancing of five-level H-bridge flying capacitor multicell converter controlled with level-shifted-carrier PWM

Arash Khoshkbar-Sadigh, Vahid Dargahi, Keith Corzine

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

3 Scopus citations

Abstract

Flying capacitor multicell (FCM) converter is one of the well-known breeds of multilevel converters. There are several configurations of flying-capacitor-based converters presented and reviewed in the literature. One of the promising topologies of the FCM converter suitable for single/threephase applications requiring isolated converters is H-Bridge (Full-Bridge) FCM converter wherein two FCM converters are connected back-to-back encircling one dc voltage source. Due to a superior line-to-line harmonic performance of the level-shifted-carrier pulse-width-modulation (LSC-PWM), this paper proposes an active voltage control of five-level H-bridge FCM converter operated under LSC-PWMs. The general scheme of the proposed active voltage balancing is implemented by utilization of logic-gates without requiring any lookup table. The five-level H-bridge FCM is simulated in PSCAD and the simulation results are provided. Moreover, the performance of the proposed active voltage balancing is investigated under different LSC-PWM strategies to show which one results in a better harmonic performance and which one results in less voltage ripple across the flying capacitors.

Original languageEnglish (US)
Title of host publication2015 Clemson University Power Systems Conference, PSC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479919512
DOIs
StatePublished - May 4 2015
Event2015 Clemson University Power Systems Conference, PSC 2015 - Clemson, United States
Duration: Mar 10 2015Mar 13 2015

Publication series

Name2015 Clemson University Power Systems Conference, PSC 2015

Conference

Conference2015 Clemson University Power Systems Conference, PSC 2015
Country/TerritoryUnited States
CityClemson
Period3/10/153/13/15

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Signal Processing
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

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