Variable Coupling Coefficient Integrated Inductor for Hybrid Energy Source Systems

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門（英文）

発行日: 2023/05/01

タイトル(英語): Variable Coupling Coefficient Integrated Inductor for Hybrid Energy Source Systems

著者名: Masanori Ishigaki (Toyota Central Research and Development Labs., INC.), Koji Shigeuchi (Toyota Central Research and Development Labs., INC.), Naoki Yanagizawa (Toyota Central Research and Development Labs., INC.), Hiroki Nitta (JTEKT Corporation), Shuji

著者名(英語): Masanori Ishigaki (Toyota Central Research and Development Labs., INC.), Koji Shigeuchi (Toyota Central Research and Development Labs., INC.), Naoki Yanagizawa (Toyota Central Research and Development Labs., INC.), Hiroki Nitta (JTEKT Corporation), Shuji Tomura (Toyota Central Research and Development Labs., INC.)

キーワード: inductor，super-capacitor，battery，EVs，magnetic coupling

要約(英語): This paper proposes an innovative integrated inductor technology for hybrid energy source systems (HESS). The proposed inductor utilizes novel variable coupling coefficient integrated inductor (VCCII) technology to integrate two inductors that are required for a dual boost converter for HESS. VCCII has an integrated structure of two inductors, and enables control the coupling coefficient between the two inductors depending on the power distribution ratio of two power sources. In a low-power operation, the coupling coefficient between the two inductors is structurally zero, which enables the VCCII technology to independently control each output of energy sources without interference. In high-power operation, the coupling coefficient of the two windings increases by utilizing the non-linear characteristics of a magnetic core. These coupling effects peak shaving of the inductor current, which contributes to loss reduction and increase the maximum power capability. A prototype result verifies a 50% increase of peak power density and a 15% increase of maximum power capability under 20V/100A and 25V/40A inputs and 42V output HESS. Additionally, the result gives 1.9 point of efficiency improvement in a double boost converter circuit operating at 100-kHz switching, 810W output.

本誌: IEEJ Journal of Industry Applications Vol.12 No.3 （2023） Special Issue on “IPEC-Himeji 2022”

本誌掲載ページ: 534-540 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/12/3/12_22008161/_article/-char/ja/