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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
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee AP WPT  
Conference Date 2022-01-20 - 2022-01-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Kenmin-Fureai-Kaikan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Radio propagation, Wireless transmission technology, Antennas and Propagation 
Paper Information
Registration To WPT 
Conference Code 2022-01-AP-WPT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Simulation study of Drainage Type High-Efficiency Electrified Roadway for Capacitive Power Transfer in Motion 
Sub Title (in English)  
Keyword(1) wireless power transfer  
Keyword(2) capacitive coupling  
Keyword(3) electrified roadway  
Keyword(4) electromagnetic wave analysis  
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1st Author's Name Shoi Yokono  
1st Author's Affiliation Toyohashi University of Technology (TUT)
2nd Author's Name Minoru Mizutani  
2nd Author's Affiliation Toyohashi University of Technology (TUT)
3rd Author's Name Takashi Ohira  
3rd Author's Affiliation Toyohashi University of Technology (TUT)
4th Author's Name Sonshu Sakihara  
4th Author's Affiliation Taisei Corporation (Taisei Corp.)
5th Author's Name Testuo Endo  
5th Author's Affiliation Taisei Corporation (Taisei Corp.)
6th Author's Name Takefumi Shindo  
6th Author's Affiliation Taisei Corporation (Taisei Corp.)
7th Author's Name Kenji Karaki  
7th Author's Affiliation Taisei Rotec Corporation (Taisei Rotec Corp.)
8th Author's Name Takashi Watanabe  
8th Author's Affiliation Taisei Rotec Corporation (Taisei Rotec Corp.)
9th Author's Name Masakazu Jomoto  
9th Author's Affiliation Taisei Rotec Corporation (Taisei Rotec Corp.)
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Speaker Author-1 
Date Time 2022-01-21 10:50:00 
Presentation Time 25 minutes 
Registration for WPT 
Paper # WPT2021-17 
Volume (vol) vol.121 
Number (no) no.331 
Page pp.9-12 
#Pages
Date of Issue 2022-01-13 (WPT) 


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