Design and implementation of trans-Z-source inverter-fed induction motor drive with fault-tolerant capability

Vivek Sharma, M. J. Hossain, S. M. N. Ali, Muhammad Kashif, Edstan Fernandez

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

1 Citation (Scopus)

Abstract

The traditional Z-source inverter suffers from large voltage stress across the switches, and discontinuous source current, which is not appropriate for the electric motor drives applications. This paper presents a design and thorough analysis of a trans-Z-source (transformer-based Z-source) with higher boost capability and negligible leakage inductance which overcomes the drawbacks of traditional Z-source inverters (ZSI). Additionally, the fault-tolerant capability of the proposed trans-ZSI is investigated for open-circuit and short-circuit faults occurring in the power semiconductor switches of the inverter module. It proposes a highly efficient faulty leg identification method which is independent of the temperature rise occurring due to high current in the faulty mode. The proposed fault-tolerant scheme is characterized by low cost, fast fault diagnosis irrespective of load, and maintaining post-fault speed characteristics of motor identical to pre-fault characteristics. The experimental results are presented to validate the effectiveness of the proposed method for induction motor drives. Also, a comparative study with similar fault diagnosis strategies is tabulated to validate the potential of the proposed fault-tolerant strategy.

Original languageEnglish
Title of host publicationThirty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages690-695
Number of pages6
ISBN (Electronic)9781728148298, 9781728148281
ISBN (Print)9781728148304
DOIs
Publication statusPublished - 2020
Event35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020 - New Orleans, United States
Duration: 15 Mar 202019 Mar 2020

Publication series

Name
ISSN (Print)1048-2334
ISSN (Electronic)2470-6647

Conference

Conference35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020
CountryUnited States
CityNew Orleans
Period15/03/2019/03/20

Keywords

  • trans-Z-source
  • switch faults
  • fault-tolerant
  • inverter
  • induction motor drive

Fingerprint

Dive into the research topics of 'Design and implementation of trans-Z-source inverter-fed induction motor drive with fault-tolerant capability'. Together they form a unique fingerprint.

Cite this