A fault-tolerant topology of T-Type NPC inverter with increased thermal overload capability

Jiangbiao He, Nathan Weise, Lixiang Wei, Nabeel A.O. Demerdash

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

13 Scopus citations

Abstract

Reliability of multilevel power converters has received increased attention over the past few years, due to the relatively high component failure probability caused by the large number of switching devices utilized in the converter topologies. Thus, the fault-tolerant operation of multilevel converters plays an essential role in safety-critical industrial applications. This paper introduces an improved fault-tolerant inverter topology based on the conventional three-level T-Type neutral-point-clamped (NPC) inverter. Unlike other existing three-phase four-leg fault-tolerant inverter topologies, the fault-tolerant T-Type inverter topology proposed here can significantly enhance the overall thermal overload capability of the inverter, in addition to providing desired fault-tolerant capability. The operating principle of this proposed fault-tolerant T-Type inverter is detailed in this paper, and simulation results are presented to verify the advantages of this improved inverter topology.

Original languageEnglish
Title of host publication2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016
Pages1065-1070
Number of pages6
ISBN (Electronic)9781467383936
DOIs
StatePublished - May 10 2016
Event31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016 - Long Beach, United States
Duration: Mar 20 2016Mar 24 2016

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2016-May

Conference

Conference31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016
Country/TerritoryUnited States
CityLong Beach
Period3/20/163/24/16

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

Keywords

  • Neutral-point clamped inverters
  • fault-tolerant operation
  • overload capability
  • three-phase four-leg inverter

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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