Efficiency Improvement of Fault-Tolerant Three-Level Power Converters

Ramin Katebi, Jiangbiao He, Waqar A. Khan, Nathan Weise

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

1 Scopus citations

Abstract

Fault-tolerant power converters play a critical role in the transportation electrification. However, fault-tolerant operation, high efficiency, and low cost usually result in design criteria that have conflicting constraints and goals. The majority of the fault-tolerant power converter topologies presented in the literature confirm these conflicts. In this paper, three types of fault-tolerant neutral-point clamped (NPC) converters are investigated. Various modulation strategies are explored to reduce the losses of the redundant phase leg. The simulation and experimental results show that the Switching Frequency Optimal Phase opposition Disposition modulation strategy is the most effective approach in minimizing the losses in the redundant phase leg.

Original languageEnglish
Title of host publication2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018
Pages1106-1110
Number of pages5
DOIs
StatePublished - Aug 28 2018
Event2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018 - Long Beach, United States
Duration: Jun 13 2018Jun 15 2018

Publication series

Name2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018

Conference

Conference2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018
Country/TerritoryUnited States
CityLong Beach
Period6/13/186/15/18

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

Keywords

  • SiC MOSFET
  • conduction losses
  • efficiency
  • fault-tolerant operation
  • neutral point clamped converter
  • neutral point current
  • wide band gap devices

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Transportation

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