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Current-fed three-phase soft-switching DC/DC converter with natural device commutation and voltage clamping

  • National University of Singapore

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

Abstract

A novel bidirectional snubberless naturally commutated soft-switching current-fed three-phase DC/DC converter is proposed. This proposed secondary modulation technique naturally clamps the voltage across the primary side devices with zero current commutation (ZCC) eliminating the necessity for active-clamp circuit or passive snubbers. Switching losses are reduced significantly owing to zero-current switching (ZCS) of primary side devices and zero-voltage switching (ZVS) of secondary side devices. Soft-switching and natural voltage-clamping (NVC) is inherent and load independent. The proposed bidirectional converter shows better performance i.e. high efficiency, high density, high reliability, small volume, light weight and low cost. These merits make the converter promising for electric/fuel cell vehicles, front-end dc/dc power conversion for solar/fuel cell inverters and energy storage. Steady state analysis, design, and experimental results are presented.

Original languageEnglish
Title of host publicationIECON Proceedings (Industrial Electronics Conference)
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4231-4237
Number of pages7
ISBN (Electronic)9781479940325
DOIs
StatePublished - 24 Feb 2014
Externally publishedYes

Publication series

NameIECON Proceedings (Industrial Electronics Conference)

Keywords

  • Current-fed converter
  • DC/DC converter
  • High-frequency
  • Naturally clamped
  • Snubberless
  • Soft-switching

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