Paper Abstract and Keywords |
Presentation |
2022-01-21 10:50
Simulation study of Drainage Type High-Efficiency Electrified Roadway for Capacitive Power Transfer in Motion Shoi Yokono, Minoru Mizutani, Takashi Ohira (TUT), Sonshu Sakihara, Testuo Endo, Takefumi Shindo (Taisei Corp.), Kenji Karaki, Takashi Watanabe, Masakazu Jomoto (Taisei Rotec Corp.) WPT2021-17 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Capacitive-coupling wireless power transfer is advantageous because continuous dynamic powering along a roadway of tens of meters is possible with a single RF-power supply. The purpose of this study is to design a high-efficiency electrified roadway with a drainage mechanism.To improve drainage, we propose a new structure that does not use materials that contain water easily.The S parameters of the electrified roadway are evaluated by electromagnetic wave analysis, and maximum available efficiency $eta_{mathrm{max}}$ is estimated. We sweep the roadway length from 10 to 100 m in the electromagnetic wave analysis to evaluate $eta_{mathrm{max}}$. The simulation results show that $eta_{mathrm{max}}$ of the 10 m roadway is 99 % in the dry condition and 98 % in the moist condition, and $eta_{mathrm{max}}$ does not decrease substantially.Futhermore, $eta_{mathrm{max}}$ of the moist 100 m roadway is higher than 85 %.We thus conclude that $eta_{mathrm{max}}$ of the moist road maintains high for a long distance.These results show that the road designed in this study is less susceptible to the effects of water and can achieve high efficiency power transfer over long distances. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
wireless power transfer / capacitive coupling / electrified roadway / electromagnetic wave analysis / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 331, WPT2021-17, pp. 9-12, Jan. 2022. |
Paper # |
WPT2021-17 |
Date of Issue |
2022-01-13 (WPT) |
ISSN |
Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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WPT2021-17 |
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