Variable Resonant and Magnetizing Inductor Control for LLC Resonant Converter

  • Yuqi Wei
  • , Dereje Woldegiorgis
  • , Alan Mantooth

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

11 Scopus citations

Abstract

In this article, a variable resonant and magnetizing inductor based control strategy is proposed for LLC resonant converter. To reduce system components, the control circuitries for variable inductor and variable transformer are integrated as one. For single variable resonant inductor control, the controllable voltage gain range is restricted due to the magnetic core material. Thus, with both resonant and magnetizing inductor control, the voltage gain range can be extended to some extent. Meanwhile, due to the fixed switching frequency operation, the electro-magnetic interference (EMI) performance of the proposed converter is improved. Nevertheless, the disadvantage of the proposed control strategy is the power loss associated with variable inductor and transformer. Comparison between the frequency control, variable resonant inductor control and the proposed variable resonant and magnetizing inductor control is presented.

Original languageEnglish
Title of host publication2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages149-153
Number of pages5
ISBN (Electronic)9781728169903
DOIs
StatePublished - 28 Sep 2020
Externally publishedYes
Event11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020 - Dubrovnik, Croatia
Duration: 28 Sep 20201 Oct 2020

Publication series

Name2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020

Conference

Conference11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020
Country/TerritoryCroatia
CityDubrovnik
Period28/09/201/10/20

Keywords

  • LLC resonant converter
  • variable inductor
  • variable transformer

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