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A High Efficiency and Low Shutdown Current Bidirectional DC-DC CLLLC Resonant Converter

  • Harbin Institute of Technology Shenzhen
  • Shenzhen Inovance Technology Co. Ltd

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

Abstract

This paper proposes a detailed design method to build a bidirectional CLLLC resonant converter for an on-board charger (OBC). The proposed CLLLC resonant converter can realize the ZVS of the switching transistor and the ZCS of the rectifier, benefiting from its high efficiency and high power density, and can thus realize a wide output voltage range. Furthermore, the bidirectional energy transformation makes the CLLLC topology suitable for use in OBC dc-dc converters. The design method proposed in this paper is used to systematically expound the relationship between the parameters and the characteristics of the CLLLC converter. In addition, the resonance parameters are optimized according to the key indicators of shutdown current and efficiency. A prototype with a forward operation at 6.6 kW and a reverse operation at 3.3 kW is built according to the proposed design method and its characteristics are verified.

Original languageEnglish
Title of host publication2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728133980
DOIs
StatePublished - Aug 2019
Externally publishedYes
Event22nd International Conference on Electrical Machines and Systems, ICEMS 2019 - Harbin, China
Duration: 11 Aug 201914 Aug 2019

Publication series

Name2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019

Conference

Conference22nd International Conference on Electrical Machines and Systems, ICEMS 2019
Country/TerritoryChina
CityHarbin
Period11/08/1914/08/19

Keywords

  • CLLLC topology
  • low shutdown current
  • parameters design
  • resonant converter

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