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Analysis on Two Structures of Interleaved LLC Converter

  • School of Electrical Engineering and Automation, Harbin Institute of Technology
  • Power Supply Department Manufacturing Plant

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

Abstract

In high power applications, parallel structure is often used to increase the output power of the converter. In LLC resonant converter, a large resonance frequency point offset will be caused due to the subtle difference in resonance parameters of each parallel unit, and it is difficult to achieve output current sharing in parallel. In this paper, the Fundamental Harmonic Analysis (FHA) will be used to analyze two different LLC resonant converter parallel structures. The analysis proves that common capacitor structure can achieve more excellent current sharing characteristics than IPOP structure. Two parallel-structured LLC resonant converter prototypes were built and compared to verify the conclusion.

Original languageEnglish
Title of host publicationProceedings - 2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538660539
DOIs
StatePublished - 26 Dec 2018
Externally publishedYes
Event2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018 - Shenzhen, China
Duration: 4 Nov 20187 Nov 2018

Publication series

NameProceedings - 2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018

Conference

Conference2018 IEEE International Power Electronics and Application Conference and Exposition, PEAC 2018
Country/TerritoryChina
CityShenzhen
Period4/11/187/11/18

Keywords

  • FHA
  • current sharing
  • multiphase LLC
  • resonant converter

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