Wireless Power Transfer System with Ideal Transformer Characteristics Determined Solely by Coil Turns Ratio

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: 2020/11/01

タイトル(英語): Wireless Power Transfer System with Ideal Transformer Characteristics Determined Solely by Coil Turns Ratio

著者名: Kenji Nara (Graduate School of Science and Engineering, Saitama University), Naofumi Madoiwa (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology), Keiri Maeshiro (Graduate School of Science and Engineering, Saitama Universi

著者名(英語): Kenji Nara (Graduate School of Science and Engineering, Saitama University), Naofumi Madoiwa (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology), Keiri Maeshiro (Graduate School of Science and Engineering, Saitama University), Yasuyoshi Kaneko (Graduate School of Science and Engineering, Saitama University)

キーワード: wireless power transfer，constant voltage output，S/SP system，ideal transformer，circuit design

要約(英語): To manufacture wireless power transfer (WPT) products, not only in-depth knowledge of WPT but also various factors, such as power supply, charging circuit, and battery, must be considered, and the complexity is a barrier to the spread of WPT technology. Therefore, if the voltage is easily stepped up/down by the WPT circuit section, a general-purpose power supply and charging circuit can be used, leading to simplification of the system. The S/SP method proposed in this study exhibits the same input/output (I/O) characteristic of an ideal transformer, and the I/O ratio of the WPT circuit is determined from the turn ratio of the coils, similar to a general transformer. In a power feeding experiment, the I/O voltage ratio of the WPT circuit matched the turn ratio of the coils. The power transfer efficiency of the S/SP system was lower than that of the S/P system, but the difference was only 1.0%. Through a secondary side misalignment experiment, we confirmed that the I/O relation was maintained to an extent. In addition, the S/SP method was clarified to have better displacement characteristics than those of the S/P method.

本誌: IEEJ Journal of Industry Applications Vol.9 No.6 （2020）

本誌掲載ページ: 656-662 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/9/6/9_20000876/_article/-char/ja/