Analytical averaged loss model of three-phase T-type STATCOM with virtual zero level modulation

Jun Wang, Xibo Yuan, Yonglei Zhang, Kfir J. Dagan, Xu Liu, David Drury, Phil Mellor, Andrew Bloor

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

7 Scopus citations

Abstract

This paper presents an analytical model to provide a rapid estimation of the steady-state averaged power loss of a T-type STATCOM with Virtual Zero level Modulation (VZM) to balance the neutral point voltage. A case study is then conducted on a 54kVA rated T-type STATCOM system to investigate the power loss distribution over power devices and variations over switching frequency. A comparison is made in the case study between Silicon IGBT and Silicon Carbide MOSFETs considering the power losses. Downscaled experimental verification is then conducted and shows good consistency with the analytical model. The loss model indicates that VZM reduces the conduction losses of the power converter, but increases the switching losses at the same time.

Original languageEnglish
Title of host publication2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5355-5361
Number of pages7
ISBN (Electronic)9781509029983
DOIs
StatePublished - 3 Nov 2017
Externally publishedYes
Event9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, United States
Duration: 1 Oct 20175 Oct 2017

Publication series

Name2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Volume2017-January

Conference

Conference9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
Country/TerritoryUnited States
CityCincinnati
Period1/10/175/10/17

Keywords

  • Modelling
  • Neutral point balancing
  • Power converter
  • Power loss
  • STATCOM
  • Three level

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