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Paper Abstract and Keywords
Presentation 2017-03-06 15:50
Study on groundless electrically coupling non-contact power transfer to horizontally shifting systems
Kentaro Kawabe, Yangjun Zhang (Ryukoku Univ.), Ikuo Awai (Ryutech) WPT2016-72
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a WPT system that directly connects an electrode plate to a λ/2 open spiral resonator, where power transmission is possible to the receiving electrode stably placed anywhere on the transmitting electrode even when it is large enough. Our experimental result shows that approximately 80% of maximum transmission efficiency is attained for the receiving electrode of 20x14cm with the distance of 2cm on the transmitting electrode as large as 200x15cm. In addition, we have reduced unloaded Q deterioration of the resonator by introducing a constant space when we insert a thick concrete with the substantial dielectric loss in the power transfer space and obtained an average of 60% of transfer efficiency at 8cm for the transmitting and receiving electrode interval, which is equal to the case of the air separation.
Keyword (in Japanese) (See Japanese page) 
(in English) Horizontally-shifting objects / Contactless power transfer / Electrical coupling / Groundless system / Disk repeater / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 499, WPT2016-72, pp. 37-42, March 2017.
Paper # WPT2016-72 
Date of Issue 2017-02-27 (WPT) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 WPT  
Conference Date 2017-03-06 - 2017-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Univ. Uji Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Power Transfer, SPS Technology, etc. 
Paper Information
Registration To WPT 
Conference Code 2017-03-WPT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on groundless electrically coupling non-contact power transfer to horizontally shifting systems 
Sub Title (in English)  
Keyword(1) Horizontally-shifting objects  
Keyword(2) Contactless power transfer  
Keyword(3) Electrical coupling  
Keyword(4) Groundless system  
Keyword(5) Disk repeater  
1st Author's Name Kentaro Kawabe  
1st Author's Affiliation Ryukoku University (Ryukoku Univ.)
2nd Author's Name Yangjun Zhang  
2nd Author's Affiliation Ryukoku University (Ryukoku Univ.)
3rd Author's Name Ikuo Awai  
3rd Author's Affiliation Ryutech corporation (Ryutech)
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Date Time 2017-03-06 15:50:00 
Presentation Time 25 
Registration for WPT 
Paper # WPT2016-72 
Volume (vol) 116 
Number (no) no.499 
Page pp.37-42 
Date of Issue 2017-02-27 (WPT) 

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