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Paper Abstract and Keywords
Presentation 2023-06-30 14:30
Derivation of Efficiency Equivalent Coupling Factor Equivalent to Position Efficiency of Receiving Coil on Multiple Transmission Coils -- Demonstration of Correlation Between Efficiency Equivalent Coupling Factor and Receiver Coil Position Efficiency of Quadratic Equivalent Circuit --
Hideaki Abe WPT2023-11
Abstract (in Japanese) (See Japanese page) 
(in English) The efficiency characteristic of magnetic coupled wireless power transfer in which a pair of transmission / reception coils is known as the kQ product theory. If the resonance conditions are satisfied between the secondary coil self-inductance and the capacitor on the secondary side, the maximum efficiency that can be taken is determined by the kQ product. Since Q is a fixed value, the maximum efficiency is determined by the size of k. On the other hand, such a theory is not found regarding the efficiency distribution characteristics at the power receiving coil position placed at an arbitrary position on the transmission coil array. In power transmission coil array power feeding using relay resonant coils that become multiplex multiple magnetic coupling, a unique efficiency distribution is known. Author searched for a substitute characteristic representing the efficiency distribution in multiple magnetic coupling power transfer, and found the efficiency equivalent coupling coefficient kη from the secondary-side conversion equivalent circuit.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless Power Transfer / Equivalent Coupling Factor / Secondary-Side Conversion Equivalent Circuit / Efficiency Equivalent Coupling Factor / Power Transmission Coil Array / Relay Resonant Coil / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 93, WPT2023-11, pp. 3-8, June 2023.
Paper # WPT2023-11 
Date of Issue 2023-06-23 (WPT) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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 2023-06-30 - 2023-06-30 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To WPT 
Conference Code 2023-06-WPT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Derivation of Efficiency Equivalent Coupling Factor Equivalent to Position Efficiency of Receiving Coil on Multiple Transmission Coils 
Sub Title (in English) Demonstration of Correlation Between Efficiency Equivalent Coupling Factor and Receiver Coil Position Efficiency of Quadratic Equivalent Circuit 
Keyword(1) Wireless Power Transfer  
Keyword(2) Equivalent Coupling Factor  
Keyword(3) Secondary-Side Conversion Equivalent Circuit  
Keyword(4) Efficiency Equivalent Coupling Factor  
Keyword(5) Power Transmission Coil Array  
Keyword(6) Relay Resonant Coil  
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Keyword(8)  
1st Author's Name Hideaki Abe  
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Speaker Author-1 
Date Time 2023-06-30 14:30:00 
Presentation Time 25 minutes 
Registration for WPT 
Paper # WPT2023-11 
Volume (vol) vol.123 
Number (no) no.93 
Page pp.3-8 
#Pages 6 
Date of Issue 2023-06-23 (WPT) 

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