A Fault-Tolerant Modulation Method to Counteract the Double Open-Switch Fault in Matrix Converter Drive Systems without Redundant Power Devices

Der-Fa Chen, Khiem Nguyen-Duy, Tian-Hua Liu, Michael A. E. Andersen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

This paper studies the double open-switch fault issue occurring within the conventional matrix converter driving a three-phase permanent-magnet synchronous motor system and proposes a fault-tolerant solution by introducing a revised modulation strategy. In this switching strategy, the rectifier-stage modulation is adjusted based on the knowledge of the switching logics of the inverter-stage and the operating input voltage sectors. However, the proposed fault-tolerant method does not rely on the assist of any redundant power devices or any reconfiguration of the matrix converter circuit by means of using redundant physical connections. It is shown that different locations of the double open switch affect the availability of the revised modulation. The steady state absolute speed error achieved with the proposed method is 4% of the nominal speed. Experimental results are performed to demonstrate the efficacy of the proposed methods.
Original languageEnglish
Title of host publicationProceedings of 10th International Power and Energy Conference
PublisherIEEE
Publication date2012
Pages65 - 70
Publication statusPublished - 2012
EventThe 10th International Power and Energy Conference (IPEC 2012) - Ho Chi Minh City, Viet Nam
Duration: 12 Dec 201214 Dec 2012

Conference

ConferenceThe 10th International Power and Energy Conference (IPEC 2012)
CountryViet Nam
CityHo Chi Minh City
Period12/12/201214/12/2012

Keywords

  • Fault tolerant
  • Matrix converter
  • Multiple fault
  • Open-switch fault
  • Pulse width modulation
  • Motor drives
  • Multi-failure
  • PMSM

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