走行中ワイヤレス給電に向けたコンデンサレスかつフェライトレス85kHz自己共振コイルの低抵抗化

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: 2019/08/01

タイトル(英語): Resistance Reduction of Capacitor-less and Ferrite-less 85kHz Self-resonant Coil for Dynamic Wireless Power Transfer

著者名: 高橋　芳明（東京大学大学院新領域創成科学研究科），畑　勝裕（東京大学大学院工学系研究科），居村　岳広（東京大学大学院工学系研究科），藤本　博志（東京大学大学院工学系研究科），堀　洋一（東京大学大学院工学系研究科）

著者名(英語): Yoshiaki Takahashi (Graduate School of Frontier Sciences, The University of Tokyo), Katsuhiro Hata (Graduate School of Engineering, The University of Tokyo), Takehiro Imura (Graduate School of Engineering, The University of Tokyo), Hiroshi Fujimoto (Graduate School of Engineering, The University of Tokyo), Yoichi Hori (Graduate School of Engineering, The University of Tokyo)

キーワード: 走行中ワイヤレス給電，自己共振コイル，オープン型コイル，コンデンサレス，低コスト　　dynamic wireless power transfer，self-resonant coil，open-end coil，capacitor-less，low cost

要約(英語): In the dynamic wireless power transfer (WPT) for electric vehicles, the series/series (S/S) compensated WPT circuit via magnetic resonance coupling is adopted to achieve high-efficiency and high-power transmission. However, when the magnetic field coupling between the primary side and secondary side coils is low, the primary side resonance capacitor can cause a breakdown. Therefore, the embedded equipment must be repaired. This paper proposes a method to adopt a capacitor-less coil that can self-resonate at 85kHz without external resonance capacitors on the primary side. This can result in reduced cost of the WPT system. A previous study stated that high-power transmission is impossible owing to high resistance; however, it was found that not only the skin and proximity effects but the dielectric increases the resistance. By considering these factors, the resistance was reduced, and the measurement results showed that the evaluated load power was 3kW class at 90% of transmission efficiency.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.139 No.8 （2019）

本誌掲載ページ: 734-742 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/139/8/139_734/_article/-char/ja/