Resonant Parameter Design of Asymmetrical CLLC-Type DC Transformer with Robust Voltage Gain

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

Abstract

In the renewable energy system, the asymmetrical CLLC-type resonant DC transformer (ACLLC-type DCT) has been widely applied due to its high power-density and low-cost control. Whereas, the main circuit parameters are varying with operation power and temperature in practice, especially at the high-frequency condition. Therefore, the circuit parameters must be properly designed to achieve the robust voltage conversion gain (VCG) when adopting the open-loop scheme. To solve the above problems, this paper presents a special parameters design approach for DCT. In the proposed approach, all unknown parameters are replaced with two equivalent variables with the help of the mathematical model simplifications. Subsequently, a two-stage procedure is introduced to complete the parameters design based on the robust VCG requirement. At last, the proposed method is validated in a DCT based prototype.

Original languageEnglish
Title of host publicationICPE 2019 - ECCE Asia - 10th International Conference on Power Electronics - ECCE Asia
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1805-1809
Number of pages5
ISBN (Electronic)9788957083130
StatePublished - May 2019
Externally publishedYes
Event10th International Conference on Power Electronics - ECCE Asia, ICPE 2019 - ECCE Asia - Busan, Korea, Republic of
Duration: 27 May 201930 May 2019

Publication series

NameICPE 2019 - ECCE Asia - 10th International Conference on Power Electronics - ECCE Asia

Conference

Conference10th International Conference on Power Electronics - ECCE Asia, ICPE 2019 - ECCE Asia
Country/TerritoryKorea, Republic of
CityBusan
Period27/05/1930/05/19

Keywords

  • DC Transformer
  • Efficiency
  • Renewable energy system
  • Resonant converter
  • Voltage conversion gain

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