An optimized SVPWM scheme for a thirteen-level inverter

Onesimo Flores-Acoltzi, Ismael Araujo-Vargas, Nancy Mondragón-Escamilla, Mario Ponce-Flores, Fermín Valencia-Figueroa

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents an improved Space Vector PWM (SVPWM) strategy for an unusual thirteen-level inverter that has symmetric space vectors with few redundant switching states. In comparison to conventional topologies of multi-level inverters that utilise complex cascade H-bridges with isolated DC sources or Neutral Point Clamped (NPC) circuits, the multi-level inverter presented in this work uses a single DC supply and a three-phase transformer coupling. The improved SVPWM scheme facilitates the location of the reference voltage vector in the space vector plane and the determination of the semiconductor devices switching. The principle of operation of the thirteen-level inverter is analysed, showing how an optimized SVPWM technique was implemented on a low-cost FPGA to operate a 2kW, 13-level inverter prototype, and experimental results are shown to validate the operation of the converter under steady-state and dynamic conditions.

Original languageEnglish
Title of host publicationIET Conference Publications
PublisherInstitution of Engineering and Technology
EditionCP684
ISBN (Electronic)9781785611889
ISBN (Print)9781785611889
DOIs
StatePublished - 2016
Event8th IET International Conference on Power Electronics, Machines and Drives, PEMD 2016 - Glasgow, United Kingdom
Duration: 19 Apr 201621 Apr 2016

Publication series

NameIET Conference Publications
NumberCP684
Volume2016

Conference

Conference8th IET International Conference on Power Electronics, Machines and Drives, PEMD 2016
Country/TerritoryUnited Kingdom
CityGlasgow
Period19/04/1621/04/16

Keywords

  • FPGA
  • Space vector PWM (SVPWM)
  • Thirteen-level inverter
  • Three-phase transformer

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