磁界を用いたワイヤレス電力伝送における結合係数とコイルサイズのスケール則

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2017/04/01

タイトル(英語): Scaling Law of Coupling Coefficient and Coil Size in Wireless Power Transfer Design via Magnetic Coupling

著者名: 長井　千明（（株）大林組／東京大学大学院 新領域創成科学研究科 先端エネルギー工学専攻），犬飼　健二（（株）大林組），小林　正人（公益財団法人原子力環境整備促進・資金管理センター），田中　達也（（株）大林組），鐙　顕正（（株）大林組），居村　岳広（東京大学大学院 工学系研究科 電気系工学専攻），堀　洋一（東京大学大学院 新領域創成科学研究科 先端エネルギー工学専攻／東京大学大学院 工学系研究科 電気系工学専攻）

著者名(英語): Chiaki Nagai (Obayashi Corporation/Gradute School of Frontier Science, The University of Tokyo), Kenji Inukai (Obayashi Corporation), Masato Kobayashi (Radioactive Waste Management Funding and Research Center), Tatsuya Tanaka (Obayashi Corporation), Kensho Abumi (Obayashi Corporation), Takehiro Imura (Gradute School of Engineering, The University of Tokyo), Yoichi Hori (Gradute School of Frontier Science, The University of Tokyo/Gradute School of Engineering, The University of Tokyo)

キーワード: ワイヤレス電力伝送，磁界共振結合，結合係数，スケール則，ヘリカルコイル　　wireless power transfer，magnetic resonant coupling，coupling coefficient，scaling law，helical coil

要約(英語): Wireless Power Transfer (WPT), such as magnetic resonant coupling using a magnetic field is being studied and discussed for a wide variety of applications. When the transmission distances are large, very large transmitters and receivers need to be considered. However, in the early stages of an investigation, it might be prohibitive to manufacture and evaluate coils of such a large size. To reduce costs and effort, a scaling law can be used to estimate the WPT efficiency of very large coils using the results of smaller coils. In this paper, a scaling law is proposed that relates the coil size to the coupling coefficient, assuming the ratio between the coil diameter and coil length remains constant. The coupling coefficient is one of the parameters that determine the maximum efficiency of magnetic field WPT. The proposed method was verified by an electromagnetic field simulator and experiment. The results of this study provide an easy method for estimating the WPT efficiency of very large coils.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.137 No.4 （2017）

本誌掲載ページ: 326-333 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/137/4/137_326/_article/-char/ja/