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Paper Abstract and Keywords
Presentation 2023-10-06 11:00
Wireless Power Transfer by Primary Rod-shaped Secondary Rod-shaped Coil having Robust Characteristics for Large Changes in Position and Load -- Demonstration of load voltage autonomy stability and k estimation ability by S-SP type magnetic coupling using intersecting rod-shaped coils --
Hideaki Abe WPT2023-21
Abstract (in Japanese) (See Japanese page) 
(in English) Research on magnetically coupled wireless power transfer with resonant circuits has been carried out for a long time. In the research process of nearly 30 years, it has become an even bigger trend in recent years. In particular, a lot of knowledge has been accumulated in improving efficiency and stabilizing load voltage and current. In order to increase the transmission distance, which is a benefit, mechanisms and technologies have been accumulated that enable high efficiency and good power supply quality up to the coil size. On the other hand, to allow the variable distances and positions between power transmission and reception coil, active control by inverters and converters on the power transmission and reception side, variable capacitance control, etc. are required, and increasing the system size and cost is an issue. The transmission distance and misalignment are unified and reflected in the coupling factor k. The change in load can correspond to the change in equivalent resistance R. The construction of a mechanism that allows large changes in k and R without active control is still under development. The author has already found an effective means for the load voltage to have "Inverted V-shape" characteristic in the optimized design of the S-SP type. By applying this design method, it was confirmed that a large displacement in the triaxial direction can be tolerated when both the primary and secondary coils are square. This time, as a result of further verifying the wireless power transfer system using rod-shaped coils for both primary and secondary, good performance was demonstrated.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless Power Transfer / Rod-shaped Coil / S-SP Type Magnetic Coupling / Inverted V Shape Characteristic / k&R Change robust / Cross-Arranged Magnetic Coupling / Primary side k Parameter Estimation /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 200, WPT2023-21, pp. 8-13, Oct. 2023.
Paper # WPT2023-21 
Date of Issue 2023-09-28 (WPT) 
ISSN Online edition: ISSN 2432-6380
Copyright
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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)
Download PDF WPT2023-21

Conference Information
Committee EE WPT  
Conference Date 2023-10-05 - 2023-10-06 
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 2023-10-EE-WPT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Wireless Power Transfer by Primary Rod-shaped Secondary Rod-shaped Coil having Robust Characteristics for Large Changes in Position and Load 
Sub Title (in English) Demonstration of load voltage autonomy stability and k estimation ability by S-SP type magnetic coupling using intersecting rod-shaped coils 
Keyword(1) Wireless Power Transfer  
Keyword(2) Rod-shaped Coil  
Keyword(3) S-SP Type Magnetic Coupling  
Keyword(4) Inverted V Shape Characteristic  
Keyword(5) k&R Change robust  
Keyword(6) Cross-Arranged Magnetic Coupling  
Keyword(7) Primary side k Parameter Estimation  
Keyword(8)  
1st Author's Name Hideaki Abe  
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Speaker Author-1 
Date Time 2023-10-06 11:00:00 
Presentation Time 25 minutes 
Registration for WPT 
Paper # WPT2023-21 
Volume (vol) vol.123 
Number (no) no.200 
Page pp.8-13 
#Pages 6 
Date of Issue 2023-09-28 (WPT) 

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