| Presentation | 2017-10-17 Numerical Analysis of Electromagnetic Coupling between WPT System and Human Body using a Hybrid MoM-FDTD Method Satoshi Shimoyama, Jerdvisanop Chakarothai, Kanako Wake, Soichi Watanabe, Takuji Arima, Toru Uno, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | To ensure human safety against electromagnetic (EM) exposures due to wireless power transfer (WPT) systems operating in MHz-band frequencies, a compliance test must be conducted using either numerical simulations or measurements. In this research, we perform simulation by using hybrid MoM-FDTD method for exposure evaluation inside a numerical human body in the proximity of MHz-band WPT system. Furthermore, we investigated a strength of EM coupling between human body and WPT system in order to validate conventional two step methods which ignore effect of EM coupling; i.e., impedance method and scattered field FDTD method. As a result, the difference in the exposure evaluation results resulting from ignoring EM coupling is 3.7 % at the maximum when the distance between human body and WPT system is 1 cm. We validated conventional two step method for exposure evaluation of MHz-band WPT systems and obtained the uncertainty caused by ignoring EM coupling. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Hybrid MoM-FDTD method / wireless power transfer system / numerical analysis / exposure assessment / electromagnetic coupling |
| Paper # | WPT2017-41 |
| Date of Issue | 2017-10-10 (WPT) |
| Conference Information | |
| Committee | EE / WPT |
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| Conference Date | 2017/10/16(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tohoku Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Fujio Kurokawa(Nagasaki Univ.) / Chenq Kiyou(Tohoku Univ.) |
| Vice Chair | Masatoshi Nakahara(Sojo Univ.) / Keiichi Hirose(NTT-F) / Tomohiro Seki(Nihon Univ.) |
| Secretary | Masatoshi Nakahara(Fukuoka Univ.) / Keiichi Hirose(NTT) / Tomohiro Seki(Nagoya Inst. of Tech.) |
| Assistant | kazuhiro Kajiwara(NiAS) / Takashi Matsushita(NTT-F) / Hidenori Maruta(Nagasaki Univ.) / Takehiro Imura(Univ. of Tokyo) / Masahiro Hanazawa(UL Japan) |
| Paper Information | |
| Registration To | Technical Committee on Energy Engineering in Electronics and Communications / Technical Committee on Wireless Power Transfer |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Numerical Analysis of Electromagnetic Coupling between WPT System and Human Body using a Hybrid MoM-FDTD Method |
| Sub Title (in English) | |
| Keyword(1) | Hybrid MoM-FDTD method |
| Keyword(2) | wireless power transfer system |
| Keyword(3) | numerical analysis |
| Keyword(4) | exposure assessment |
| Keyword(5) | electromagnetic coupling |
| 1st Author's Name | Satoshi Shimoyama |
| 1st Author's Affiliation | Tokyo university of agriculture and technology(TUAT) |
| 2nd Author's Name | Jerdvisanop Chakarothai |
| 2nd Author's Affiliation | National Institute of Information and Communications Technology(NICT) |
| 3rd Author's Name | Kanako Wake |
| 3rd Author's Affiliation | National Institute of Information and Communications Technology(NICT) |
| 4th Author's Name | Soichi Watanabe |
| 4th Author's Affiliation | National Institute of Information and Communications Technology(NICT) |
| 5th Author's Name | Takuji Arima |
| 5th Author's Affiliation | Tokyo university of agriculture and technology(TUAT) |
| 6th Author's Name | Toru Uno |
| 6th Author's Affiliation | Tokyo university of agriculture and technology(TUAT) |
| Date | 2017-10-17 |
| Paper # | WPT2017-41 |
| Volume (vol) | vol.117 |
| Number (no) | WPT-241 |
| Page | pp.pp.29-34(WPT), |
| #Pages | 6 |
| Date of Issue | 2017-10-10 (WPT) |