High-Reliability and Reduced Switch Count Single-Phase Dual-Output Current Source Inverter Using Switching-Cell Structure

Duc Tuan Do, Honnyong Cha

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

In this article, a novel high-reliability single-phase dual-output current source inverter is presented. By using the switching-cell (SC) structure in the proposed topology, the overlap-time between switching transition can be minimized or eliminated. This improves the quality of ac output currents, efficiency, and dc-source utilization. Additionally, the capacitors in SC structure can help to reduce dv/dt of power switches and clamp the overshoot voltage under open-circuit problems, thus improving reliability. Two modes of common and different frequency operations are considered and detailed pulsewidth modulation schemes are presented. A 650-W hardware prototype was built and tested to verify the performance of the proposed inverter, and the results are compared with conventional single-phase dual-output current source inverters.

Original languageEnglish
Article number9269457
Pages (from-to)6513-6524
Number of pages12
JournalIEEE Transactions on Power Electronics
Volume36
Issue number6
DOIs
StatePublished - Jun 2021

Keywords

  • Current source inverter
  • dual-output
  • high-reliability
  • overlap-time
  • single-phase inverter
  • switching-cell
  • voltage overshoot

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