Wireless Power Transfer System for Mobile Robots with Impedance Matching by Adjusting Position of Driver Coil

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: 2023/09/01

タイトル(英語): Wireless Power Transfer System for Mobile Robots with Impedance Matching by Adjusting Position of Driver Coil

著者名: Toshiki Ohori (Tokyo Institute of Technology), Xiang Li (LAUREL BANK MACHINES CO., LTD.), Hideyuki Nakanishi (LAUREL BANK MACHINES CO., LTD.), Shigeki Ozawa (LAUREL BANK MACHINES CO., LTD.), Wataru Hijikata (Tokyo Institute of Technology)

著者名(英語): Toshiki Ohori (Tokyo Institute of Technology), Xiang Li (LAUREL BANK MACHINES CO., LTD.), Hideyuki Nakanishi (LAUREL BANK MACHINES CO., LTD.), Shigeki Ozawa (LAUREL BANK MACHINES CO., LTD.), Wataru Hijikata (Tokyo Institute of Technology)

キーワード: wireless power transfer，mobile robot，impedance matching，coupling coefficient，driver coil

要約(英語): Wireless power transfer based on magnetic resonant coupling can be used to supply power to a mobile robot within a few meters of a transmitter coil. However, when the robot moves or its power consumption fluctuates, its input impedance varies significantly and, in case of impedance mismatch, power reflection may occur. To address this issue, we employed a driver coil on the transmitter side to match input impedance. By regulating the coupling coefficient between the driver and the transmitter coils, the input impedance is matched and power reflection is eliminated. Input impedance regulation is achieved by moving the driver coil mechanically. As confirmed by our experiments, the transmitting efficiency matched with the analytically calculated value, and the input impedance was matched for a vast range of distances from 0 to 1m and load resistances from 4 to 210 Ω by moving the driver coil properly. Therefore, the proposed system successfully addresses the power reflection problem in wireless power transfer for mobile robots.

本誌: IEEJ Journal of Industry Applications Vol.12 No.5 （2023）

本誌掲載ページ: 945-952 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/12/5/12_22009525/_article/-char/ja/