| Presentation | 2015-04-17 Experimental Evaluation of Coupling Coefficient Measurement in Three-Hop Wireless Power Transfer via Magnetic Resonance Coupling Keisuke Oyamada, Yuichi Miyaji, Hideyuki Uehara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In wireless power transfer via magnetic resonance coupling, we need to know a coupling coefficient in advance for impedance matching and power division to multiple receivers. In this paper, we focus on multi-hop WPT using intermediates and we propose measurement method of coupling coefficient between a receiver and the intermediate that is adjacent to the receiver in three-hop WPT. In our method, we assume coil parameters and other coupling coefficients are known. Our proposed method converts a measured input impedance into the desired coupling coefficient. We evaluate the proposed method by using a circuit simulation, an electromagnetic simulation and an experiment. The circuit simulation results show that coupling coefficient is measured correctly regardless of strength of coupling. However, the electromagnetic simulation and the experiment results show that our proposed method has an error of up to about 14% in strong coupling range. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Multi-hop Wireless Power Transfer / Magnetic Resonance Coupling / Coupling Coefficient |
| Paper # | WPT2015-20,MW2015-20 |
| Date of Issue | 2015-04-09 (WPT, MW) |
| Conference Information | |
| Committee | WPT / MW |
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| Conference Date | 2015/4/16(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Microwave technologies for Wireless Power Transfer, Superconducting Microwave technologies, Microwave technologies, etc. |
| Chair | Naoki Shinohara(Kyoto Univ.) / Futoshi Kuroki(Kure National College of Tech.) |
| Vice Chair | / Masashi Nakatsugawa(NTT) / Takao Kuki(NHK-ES) / Koji Yamanaka(Mitsubishi Electric) |
| Secretary | (Sendai National College of Tech.) / Masashi Nakatsugawa(Kagoshima Univ.) / Takao Kuki(NEC) / Koji Yamanaka(NTT) |
| Assistant | Hiroshi Hirayama(Nagoya Inst. of Tech.) / Takashi Hikagae(Hokkaido Univ.) / Masataka Ohira(Saitama Univ.) / Ryo Ishikawa(Univ. of Electro-Comm.) |
| Paper Information | |
| Registration To | Technical Committee on Wireless Power Transfer / Technical Committee on Microwaves |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Experimental Evaluation of Coupling Coefficient Measurement in Three-Hop Wireless Power Transfer via Magnetic Resonance Coupling |
| Sub Title (in English) | |
| Keyword(1) | Multi-hop Wireless Power Transfer |
| Keyword(2) | Magnetic Resonance Coupling |
| Keyword(3) | Coupling Coefficient |
| 1st Author's Name | Keisuke Oyamada |
| 1st Author's Affiliation | Toyohashi University of Technology(Toyohashi Univ. of Tech.) |
| 2nd Author's Name | Yuichi Miyaji |
| 2nd Author's Affiliation | Toyohashi University of Technology(Toyohashi Univ. of Tech.) |
| 3rd Author's Name | Hideyuki Uehara |
| 3rd Author's Affiliation | Toyohashi University of Technology(Toyohashi Univ. of Tech.) |
| Date | 2015-04-17 |
| Paper # | WPT2015-20,MW2015-20 |
| Volume (vol) | vol.115 |
| Number (no) | WPT-3,MW-4 |
| Page | pp.pp.103-108(WPT), pp.103-108(MW), |
| #Pages | 6 |
| Date of Issue | 2015-04-09 (WPT, MW) |