Improving the Critical Transmission Distance of Inductively Coupled Wireless Power Transfer Having Parity-Time Symmetry
Improving the Critical Transmission Distance of Inductively Coupled Wireless Power Transfer Having Parity-Time Symmetry
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: 2024/03/01
タイトル(英語): Improving the Critical Transmission Distance of Inductively Coupled Wireless Power Transfer Having Parity-Time Symmetry
著者名: Hiroki Ishida (Department of Physics, Okayama University of Science), Yasuhito Akatsu (Department of Physics, Okayama University of Science), Tomoaki Kyoden (National Institute of Technology, Toyama College), Hiroto Furukawa (National Institute of Technology, Toyama College)
著者名(英語): Hiroki Ishida (Department of Physics, Okayama University of Science), Yasuhito Akatsu (Department of Physics, Okayama University of Science), Tomoaki Kyoden (National Institute of Technology, Toyama College), Hiroto Furukawa (National Institute of Technology, Toyama College)
キーワード: wireless power transfer,parity-time symmetry,robustness,Solenoid coil,buck converter
要約(英語): A wireless power transfer (WPT) system with parity-time symmetry has a critical magnetic coupling coefficient (kmc). A small kmc results in a highly robust, long-distance WPT. We found that the series-series/parallel topology is a good choice to obtain a small kmc. Additionally, a kmc value of 0.04 was achieved by a combination of a solenoid coil of 46μH, low frequency range of 47-56kHz, and buck converter. We investigated the optimal shape of the solenoid coil using an electromagnetic field simulator, and a critical transmission distance (dc) of 77mm was achieved by small transmitter and receiver coils (dimensions: 100mm × 20mm × 10mm). We succeeded in extending dc by 1.8 times over the results from our previous work. dc of 77mm is 2.8 times as large as the cube root of the coil volume.
本誌掲載ページ: 188-197 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/13/2/13_23003692/_article/-char/ja/
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