Reduction of Switches and Flying Capacitors in a Hybrid Topology of the Stacked Multicell Converters

Arash Khoshkbar Sadigh, Vahid Dargahi, Keith A. Corzine

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

2 Scopus citations

Abstract

This paper introduces a new full-bridge hybrid multilevel converter topology that is realized through combining the two-level leg and the multilevel leg based on the stacked multicell (SM) converters. The 50% reduction in the number of switching power cells, semiconductor devices, and the flying capacitors (FCs) are the profound advantages of the proposed topology in comparison with the standard SM converter. These features decrease the voltage rating of the capacitors as well as their stored energy, and the size and cost of the converter. This improvement is achieved by adding two line-frequency switches to the conventional topology. A modified phase-shifted-carrier pulse-width-modulation (PSC-PWM) strategy has been adopted to control the proposed topology, and consequently it demonstrates the outstanding feature of the natural-balance for FC voltages. Simulation results are provided to validate the proposed topology and its control technique.

Original languageEnglish (US)
Title of host publicationProceedings
Subtitle of host publicationIECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
Pages4977-4982
Number of pages6
ISBN (Electronic)9781728148786
DOIs
StatePublished - Oct 2019
Event45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019 - Lisbon, Portugal
Duration: Oct 14 2019Oct 17 2019

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
Volume2019-October

Conference

Conference45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019
CountryPortugal
CityLisbon
Period10/14/1910/17/19

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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