Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2016-06-03 15:45
Trigonometric Phasor View on Magnetically Coupled Resonators for Wireless Power Transfer
Takashi Ohira (TUT) WPT2016-14
Abstract (in Japanese) (See Japanese page) 
(in English) This paper explores how best to exploit a magnetic-resonance wireless power transfer system once given. We theoretically find a solution to the maximum power transfer efficiency by employing trigonometric functions and phasor graphics. Showing an equivalent circuit of the system, we formulate the voltage and current behaviors. Capacitors added in series compensate the reactance of the coupling coils. This makes the input impedance positive real. Under this condition, the port voltages as well as currents become orthogonal between input and output. We next adjust the load resistance so as to maximize the power transfer efficiency. An angular parameter is introduced to translate the optimum load, input-to-output voltage ratio, and maximum efficiency into their elegant formulas. We finally show a phasor chart that explains those relationship in a lucid way.
Keyword (in Japanese) (See Japanese page) 
(in English) power transfer theory / resonance / optimum load / efficiency angle / efficiency tangent / kQ product / current ratio / current phase  
Reference Info. IEICE Tech. Rep., vol. 116, no. 74, WPT2016-14, pp. 25-28, June 2016.
Paper # WPT2016-14 
Date of Issue 2016-05-27 (WPT) 
ISSN Print edition: ISSN 0913-5685    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)
Download PDF WPT2016-14

Conference Information
Committee WPT  
Conference Date 2016-06-03 - 2016-06-03 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Technology of Wireless Power Transfer & Electric Vehicle 
Paper Information
Registration To WPT 
Conference Code 2016-06-WPT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Trigonometric Phasor View on Magnetically Coupled Resonators for Wireless Power Transfer 
Sub Title (in English)  
Keyword(1) power transfer theory  
Keyword(2) resonance  
Keyword(3) optimum load  
Keyword(4) efficiency angle  
Keyword(5) efficiency tangent  
Keyword(6) kQ product  
Keyword(7) current ratio  
Keyword(8) current phase  
1st Author's Name Takashi Ohira  
1st Author's Affiliation Toyohashi University of Technology (TUT)
2nd Author's Name  
2nd Author's Affiliation ()
3rd Author's Name  
3rd Author's Affiliation ()
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2016-06-03 15:45:00 
Presentation Time 25 minutes 
Registration for WPT 
Paper # WPT2016-14 
Volume (vol) vol.116 
Number (no) no.74 
Page pp.25-28 
#Pages 4 
Date of Issue 2016-05-27 (WPT) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan