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An auxiliary flyback circuit with output voltage ripple suppression for single-phase isolated full-bridge boost PFC converter

  • School of Electrical Engineering and Automation, Harbin Institute of Technology

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

Abstract

An effective auxiliary flyback circuit to suppress voltage ripple is proposed and investigated in a single-phase isolated full-bridge boost power factor correction (PFC) converter, by which the output voltage ripple can be suppressed obviously. The output voltage ripple can be reduced by adding the auxiliary link using the absorbed energy from the voltage spike. The energy is controlled to be transferred to the output side through a flyback converter parallel with the clamp branch capacitor. The output voltage ripple was estimated by the second order harmonic extraction link in which notch filter is used to extract the second order harmonic from the output voltage. With the help of the added energy path, the lower output voltage ripple can be achieved. Experimental results show that this auxiliary flyback circuit has a good effect on reducing the output voltage ripple on a laboratory-made prototype.

Original languageEnglish
Title of host publicationProceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4433-4437
Number of pages5
ISBN (Electronic)9781538611272
DOIs
StatePublished - 15 Dec 2017
Externally publishedYes
Event43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 - Beijing, China
Duration: 29 Oct 20171 Nov 2017

Publication series

NameProceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
Volume2017-January

Conference

Conference43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
Country/TerritoryChina
CityBeijing
Period29/10/171/11/17

Keywords

  • PFC
  • auxiliary flyback circuit
  • isolated full-bridge
  • voltage ripple

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