Switching-Cell Back-to-Back Current Source Converter with Modified SVPWM

Daheon Hong, Honnyong Cha

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

Abstract

Current source back-to-back converter has some advantage than voltage source back-to-back converter such as using inductor for power decoupling, no shoot-through problem. However, open-circuit problem occurs when there is no path for the inductor current to flow. Therefore, conventional current source rectifier or inverter needs overlap time to prevent open-circuit problem. The overlap time distort waveform of the output current. This study proposed a three-phase switching-cell back-to-back current source converter (SC-CSC). Compared to the conventional current source converter, the SC-CSC has no open-circuit possibility; thus, the converter reliability is greatly enhanced. However, due to the presence of switching-cell capacitors, SVPWM is modified in order to make voltage rating of semiconductor device the same as conventional one. The operating principle and characteristics of the proposed SC-CSC are analyzed in detail.

Original languageEnglish
Title of host publication2022 International Conference on Electrical Machines and Systems, ICEMS 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665493024
DOIs
StatePublished - 2022
Event25th International Conference on Electrical Machines and Systems, ICEMS 2022 - Virtual, Online, Thailand
Duration: 29 Nov 20222 Dec 2022

Publication series

Name2022 International Conference on Electrical Machines and Systems, ICEMS 2022

Conference

Conference25th International Conference on Electrical Machines and Systems, ICEMS 2022
Country/TerritoryThailand
CityVirtual, Online
Period29/11/222/12/22

Keywords

  • Back-to-back
  • current source
  • reliability
  • space vector
  • switching-cell

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