Paper Abstract and Keywords |
Presentation |
2014-11-18 14:50
Coupling Coefficient Estimation Using Impedance Inverter Coil in Dynamic Wireless Power Transfer System for Electric Vehicles Daita Kobayashi, Takehiro Imura, Yoichi Hori (Univ. of Tokyo) WPT2014-54 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
To implement dynamic wireless charging to electric vehicles using wireless power transfer, a system which senses the presence of vehicles and turns on/off the primary coils is necessary. Therefore, a system that automatically turns on/off by using impedance inverter coil to change the primary input impedance was proposed.
In systems of dynamic charging, the control of the secondary impedance with DC-DC converter is needed in order to optimize their efficiency or transmitting power. Moreover, the coupling coefficient between coils needs to be estimated from the secondary voltage or current. However, the estimation of coupling coefficient is difficult because secondary voltage has a peak. In this paper, a new advantage of using a impedance inverter coil that enables the estimation of coupling coefficient by moving the peak of the secondary voltage is introduced and experimentally verified. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
wireless power transfer / magnetic resonant coupling / dynamic wireless charging / coupling coefficient / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 114, no. 310, WPT2014-54, pp. 21-26, Nov. 2014. |
Paper # |
WPT2014-54 |
Date of Issue |
2014-11-11 (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) |
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WPT2014-54 |
Conference Information |
Committee |
EE WPT |
Conference Date |
2014-11-18 - 2014-11-19 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Doshisha University |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
WPT |
Conference Code |
2014-11-EE-WPT |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Coupling Coefficient Estimation Using Impedance Inverter Coil in Dynamic Wireless Power Transfer System for Electric Vehicles |
Sub Title (in English) |
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wireless power transfer |
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magnetic resonant coupling |
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dynamic wireless charging |
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coupling coefficient |
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1st Author's Name |
Daita Kobayashi |
1st Author's Affiliation |
The University of Tokyo (Univ. of Tokyo) |
2nd Author's Name |
Takehiro Imura |
2nd Author's Affiliation |
The University of Tokyo (Univ. of Tokyo) |
3rd Author's Name |
Yoichi Hori |
3rd Author's Affiliation |
The University of Tokyo (Univ. of Tokyo) |
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Speaker |
Author-1 |
Date Time |
2014-11-18 14:50:00 |
Presentation Time |
25 minutes |
Registration for |
WPT |
Paper # |
WPT2014-54 |
Volume (vol) |
vol.114 |
Number (no) |
no.310 |
Page |
pp.21-26 |
#Pages |
6 |
Date of Issue |
2014-11-11 (WPT) |
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