New unidirectional hybrid delta-switch rectifier

Thiago B. Soeiro, Thomas Friedli, Michael Hartmann, Johann W. Kolar

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

5 Citations (Scopus)

Abstract

This paper introduces a novel 3-phase hybrid rectifier assembled by the parallel connection of a 3-phase diode bridge boost rectifier with a 2-level unidirectional delta-switch rectifier. This system aims to take advantage of the commonly low power losses and high reliability of a diode based rectifier and also to benefit from the delta-rectifier capability of processing reactive power. Therefore, a highly efficient and reliable high power factor rectifier system with controlled dc-link voltage is constructed. Additionally, this work presents an efficiency comparison between the proposed hybrid delta-switch rectifier and other concepts such as the new 3-level unidirectional hybrid T-type or VIENNA 6-switch rectifiers and the single self-commuted converters, including the VIENNA 6-switch, delta-switch and T-type rectifiers for 10 kW 50 Hz operation. It is shown that the hybrid systems can achieve higher efficiency than the single self-commuted rectifier they are based on. Finally, experimental results obtained with an assembled unidirectional hybrid delta-switch rectifier prototype are presented in order to demonstrate the performance and feasibility of this solution.
Original languageEnglish
Title of host publicationIECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE
Pages1474-1479
Number of pages6
ISBN (Print)978-1-61284-971-3
DOIs
Publication statusPublished - 10 Nov 2011
Externally publishedYes
Event37th Annual Conference of the IEEE Industrial Electronics Society, IECON 2011 - Melbourne, VIC, Australia, Melbourne, Australia
Duration: 7 Nov 201110 Nov 2011
Conference number: 37

Conference

Conference37th Annual Conference of the IEEE Industrial Electronics Society, IECON 2011
Abbreviated titleIECON 2011
Country/TerritoryAustralia
CityMelbourne
Period7/11/1110/11/11

Keywords

  • Rectifiers
  • Switches
  • Reactive power
  • Hybrid power systems
  • Voltage control
  • Switching frequency
  • Semiconductor diodes
  • n/a OA procedure

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