電源周波数と異なる共振周波数の中継回路を用いた磁界結合型非接触給電の効率改善

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2024/07/01

タイトル(英語): Improved Efficiency of Magnetic Field Contactless Power Transfer using Relay Circuit with Resonant Frequency Different from Power Supply Frequency

著者名: 伊藤　将（千葉工業大学大学院工学研究科電気電子工学専攻），相知　政司（千葉工業大学工学部電気電子工学科）

著者名(英語): Masaru Ito (Graduate School of Engineering, Chiba Institute of Technology), Masashi Ohchi (Faculty of Engineering, Chiba Institute of Technology)

キーワード: 磁界結合型非接触給電，共振回路，センサネットワーク　　magnetic field coupling type contactless power supply，resonant circuit，sensor network

要約(英語): In this study, a relay resonance circuit is used transmitted power to the sensor module using four-parallel cubic coils, and the efficiency decrease with the change in the transmission distance is investigated experimentally. The relay resonant circuit used was examined for resonant frequencies that were near the usable frequency. A square coil was used as the receiving coil. Using Vector Network Analyzer (VNA), the S-parameters were measured with the transmitting and receiving coils as 2 ports, and after converting the S-parameters to Z-parameters, the theoretical maximum efficiency ηmax was calculated. The distance variation characteristics using each relay resonance circuit were investigated. As a result, it was found that the theoretical maximum efficiency was improved when relay coils were used, and that the theoretical maximum efficiency tended to increase when the resonance frequency was slightly larger than the frequency of the power supply circuit.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.144 No.7 （2024）

本誌掲載ページ: 237-244 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/ieejfms/144/7/144_237/_article/-char/ja/