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| Presentation | 2024-01-19 11:50 A study of exposure assessment for EV WPT system at 85 kHz by using multiple numerical human models. Yoshinobu Yanaga (TUAT), Yuto Shimizu (NICT), Takuji Arima (TUAT), Tomoaki Nagaoka (NICT)  EMCJ2023-93 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | WPT (wireless power transfer) devices for electric vehicles mainly use frequencies in the 85 kHz band must comply with the ICNIRP (International Commission on Non-Ionizing Radiation Protection) guidelines. This guideline indicates the in-body induced electric field, which are directly related to the effects of exposure to electromagnetic fields on the human body, as the basic restrictions and the magnetic field in free space as the reference levels. Although the magnetic field measurement is easier than the in-body induced electric field measurement, since local exposure is assumed in actual WPT devices, the reference levels are an index calculated under conditions of relatively uniform electromagnetic fields and maximum coupling between the human body and electromagnetic fields, and thus tends to be an excessive limit. Therefore, an evaluation based on the basic restrictions is considered desirable for exposure assessment of WPT devices. The use of a phantom, which dielectric property is equivalent to the human body, has been proposed as a method to measure the in-body induced electric field. However, an appropriate phantom size has rarely discussed. Thus, we revealed the distribution of in-body induced electric field by analyzing with a numerical human body model under multiple conditions. In this study, male and female computational human models were used and the 99.99 % tile value of the induced electric field of the male model was higher than the other in all conditions, so the male model can be used as the standard when considering phantom size. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Electromagnetic Fields Exposure Assessment / WPT (Wireless Power Transfer) / Computational Human Models / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 123, no. 346, EMCJ2023-93, pp. 33-36, Jan. 2024. | |
| Paper # | EMCJ2023-93 | |
| Date of Issue | 2024-01-12 (EMCJ) | |
| 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) | |
| Download PDF | EMCJ2023-93 |
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| Conference Information | |
| Committee | EMCJ |
| Conference Date | 2024-01-19 - 2024-01-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EMCJ |
| Conference Code | 2024-01-EMCJ |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study of exposure assessment for EV WPT system at 85 kHz by using multiple numerical human models. |
| Sub Title (in English) | |
| Keyword(1) | Electromagnetic Fields Exposure Assessment |
| Keyword(2) | WPT (Wireless Power Transfer) |
| Keyword(3) | Computational Human Models |
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| 1st Author's Name | Yoshinobu Yanaga |
| 1st Author's Affiliation | Tokyo University of Agriculture and Technology (TUAT) |
| 2nd Author's Name | Yuto Shimizu |
| 2nd Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 3rd Author's Name | Takuji Arima |
| 3rd Author's Affiliation | Tokyo University of Agriculture and Technology (TUAT) |
| 4th Author's Name | Tomoaki Nagaoka |
| 4th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
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| Speaker | Author-1 |
| Date Time | 2024-01-19 11:50:00 |
| Presentation Time | 20 minutes |
| Registration for | EMCJ |
| Paper # | EMCJ2023-93 |
| Volume (vol) | vol.123 |
| Number (no) | no.346 |
| Page | pp.33-36 |
| #Pages | 4 |
| Date of Issue | 2024-01-12 (EMCJ) |
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