A novel three-phase multilevel diode-clamped inverter topology with reduced device count

Aparna Saha, Ali Elrayyah, Yilmaz Sozer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper presents a novel configuration of three-phase multilevel diode-clamped inverter (DCI) with reduced part count. In the proposed topology, three-phase multilevel output voltage is generated by employing only two inverter phase legs and the third phase is sharing the unused switches of these two legs depending on the line current flow direction. The structure allows synthesizing multilevel voltage waveform with reduced number of power electronic components: diodes, power semiconductor switches and gate driver circuits compared to classical topologies. Total savings on the power device count increases proportionally for higher output voltage level DCIs. Reducing the counts on the power electronic devices result in decreased complexity and overall system cost for the inverter. The compatibility of developed general space vector modulation (SVM) technique with new multilevel DCI arrangement; make the control scheme simpler and easily implementable. The simulation results confirm the feasibility of the proposed configuration in comparison with the conventional multilevel DCI topology.

Original languageEnglish
Title of host publicationECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509007370
DOIs
Publication statusPublished - 13 Feb 2017
Event2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016 - Milwaukee, United States
Duration: 18 Sep 201622 Sep 2016

Other

Other2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016
CountryUnited States
CityMilwaukee
Period18/9/1622/9/16

Keywords

  • diode-clamped inverter (DCI)
  • Five-level (5-level)
  • minimum loss space vector modulation (MLSVPWM)
  • multilevel inverter (MLI)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Control and Optimization

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    Saha, A., Elrayyah, A., & Sozer, Y. (2017). A novel three-phase multilevel diode-clamped inverter topology with reduced device count. In ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings [7854748] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2016.7854748