Sandwiched parallel plate capacitive coupler for wireless power transfer tolerant of electrode displacement

This paper proposes a new structure of a parallel plate capacitive coupler for wireless power transfer. The structure has a transmission electrode sandwiched between the reception electrodes. It alleviates unwanted degradation in power transfer efficiency even when the reception electrodes move from...

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Bibliographic Details
Published in2017 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM) pp. 29 - 32
Main Authors Miyazaki, Motoaki, Abe, Shinji, Suzuki, Yoshiki, Sakai, Naoki, Ohira, Takashi, Sugino, Masayoshi
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2017
Subjects
automatic guided vehicle
capacitive coupling
Conferences
Couplers
Couplings
Electrodes
Microwave FET integrated circuits
Vehicle dynamics
Wireless power transfer
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Summary:This paper proposes a new structure of a parallel plate capacitive coupler for wireless power transfer. The structure has a transmission electrode sandwiched between the reception electrodes. It alleviates unwanted degradation in power transfer efficiency even when the reception electrodes move from their original positions. Simulation results show that the coupler maintains 90.1 % or higher in power transfer efficiency when the electrodes move within +/- 30 % of total sandwich space. This is 69.9 points higher than a conventional coupler having the same dimension. The new structure can contribute to the development of future high operation rate automatic guided vehicles working in factory automation.
DOI:10.1109/ICMIM.2017.7918848