A Lagrangian dynamics model of integrated transformer incorporated in a multi-phase LLC resonant converter

Mostafa Noah, Kazuhiro Umetani, Shun Endo, Hiraki Ishibashi, Jun Imaoka, Masayoshi Yamamoto

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

5 引用 (Scopus)

抜粋

In conventional arrangements of three-phase LLC converters, there are at least three magnetic components that occupy a considerable volume and mass of the power converter. Although, the three-phase LLC topology has many advantages over the single-phase one, circuit designers tend to select the singlephase topology because it has a minimal number of magnetic components. In this paper, with the purpose of promoting the industrial applications of the three-phase topology, Lagrangian dynamics is applied to theoretically prove that it is possible to replace the three-discrete transformers by a single integrated transformer. The Lagrangian dynamics theory allowed us to derive a physically motivated model for the integrated transformer, in which each component of the integrated transformer has its own Lagrangian parameter. The remarkable result to emerge from the Lagrangian model is that in a symmetrical design, there is no interphase coupling; this is regardless of the value of the coupling coefficient between the phases. This means that there is no return path for the three ac fluxes, and as a result the magnetic components can be downsized. Therefore, the major advantages of using integrated magnetics in the LLC converter can be concluded as: cost-reduction, reduced weight, and realizing higher power density. Along with the theoretical discussion, experimental validation is provided utilizing a 500W - 390V/12V - 200kHz prototype.

元の言語英語
ホスト出版物のタイトル2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
出版者Institute of Electrical and Electronics Engineers Inc.
ページ3781-3787
ページ数7
ISBN(電子版)9781509029983
DOI
出版物ステータス出版済み - 11 3 2017
イベント9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, 米国
継続期間: 10 1 201710 5 2017

出版物シリーズ

名前2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
2017-January

その他

その他9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
米国
Cincinnati
期間10/1/1710/5/17

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Renewable Energy, Sustainability and the Environment
  • Control and Optimization

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  • これを引用

    Noah, M., Umetani, K., Endo, S., Ishibashi, H., Imaoka, J., & Yamamoto, M. (2017). A Lagrangian dynamics model of integrated transformer incorporated in a multi-phase LLC resonant converter. : 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017 (pp. 3781-3787). [8096668] (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017; 巻数 2017-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2017.8096668