Overall assessments of dual inverter open winding drives

Bo Wang, G. Localzo, G. El Murr, J. Wang, A. Griffo, C. Gerada, T. Cox

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

14 Citations (Scopus)

Abstract

Dual inverter open winding drive (DIOWD) has several advantages over standard 3 phase drive such as multilevel voltage output, lower dc link voltage, high efficiency and better fault tolerant capability. In this paper three DIOWD topologies aiming for high speed and/or safety critical applications are evaluated. Their operation characteristics, VA ratings, efficiencies, harmonic distortion factors (HDF) are quantitatively compared using analytical methods. The utilization of dual inverters provides fault tolerant capabilities for the drive. However, the doubled number of devices increases the risk of single-point failure. Finally, the reliability of the drives is assessed by Markov chain technique. The results show that the DIOWD with two power supplies exhibits low HDF and high efficiency; it also offers better fault tolerant capability and enhanced reliability, thereby being more attractive for both high speed and high reliability applications. While the DIOWD with single power supply and the DIOWD with a power supply and a floating capacitor can be utilized for high speed drives with reduced dc link voltage.

Original languageEnglish
Title of host publicationProceedings - 2015 IEEE International Electric Machines and Drives Conference, IEMDC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1029-1035
Number of pages7
ISBN (Electronic)9781479979417
DOIs
Publication statusPublished - 16 Feb 2016
Externally publishedYes
EventIEEE International Electric Machines and Drives Conference, IEMDC 2015 - Coeur d'Alene, United States
Duration: 11 May 201513 May 2015

Publication series

NameProceedings - 2015 IEEE International Electric Machines and Drives Conference, IEMDC 2015

Conference

ConferenceIEEE International Electric Machines and Drives Conference, IEMDC 2015
Country/TerritoryUnited States
CityCoeur d'Alene
Period11/05/1513/05/15

Keywords

  • dual inverter open winding drive
  • efficiency
  • fault tolerant
  • harmonic distortion factor
  • Markov chain technique
  • reliability

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Automotive Engineering

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