| Presentation | 2023-06-30 Derivation of Efficiency Equivalent Coupling Factor Equivalent to Position Efficiency of Receiving Coil on Multiple Transmission Coils Hideaki Abe, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The efficiency characteristic of magnetic coupled wireless power transfer in which a pair of transmission / reception coils is known as the kQ product theory. If the resonance conditions are satisfied between the secondary coil self-inductance and the capacitor on the secondary side, the maximum efficiency that can be taken is determined by the kQ product. Since Q is a fixed value, the maximum efficiency is determined by the size of k. On the other hand, such a theory is not found regarding the efficiency distribution characteristics at the power receiving coil position placed at an arbitrary position on the transmission coil array. In power transmission coil array power feeding using relay resonant coils that become multiplex multiple magnetic coupling, a unique efficiency distribution is known. Author searched for a substitute characteristic representing the efficiency distribution in multiple magnetic coupling power transfer, and found the efficiency equivalent coupling coefficient kη from the secondary-side conversion equivalent circuit. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wireless Power Transfer / Equivalent Coupling Factor / Secondary-Side Conversion Equivalent Circuit / Efficiency Equivalent Coupling Factor / Power Transmission Coil Array / Relay Resonant Coil |
| Paper # | WPT2023-11 |
| Date of Issue | 2023-06-23 (WPT) |
| Conference Information | |
| Committee | WPT |
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| Conference Date | 2023/6/30(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kenjiro Nishikaa(Kagoshima Univ.) |
| Vice Chair | Hiroshi Hirayama(Nagoya Inst. of Tech.) |
| Secretary | Hiroshi Hirayama(UL Japan) |
| Assistant | Asako Suzuki(Fujiwaves) / Takaki Ishikawa(Orient Microwave) / Katsuhiro Hata(Univ. of Tokyo) |
| Paper Information | |
| Registration To | 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) | Derivation of Efficiency Equivalent Coupling Factor Equivalent to Position Efficiency of Receiving Coil on Multiple Transmission Coils |
| Sub Title (in English) | Demonstration of Correlation Between Efficiency Equivalent Coupling Factor and Receiver Coil Position Efficiency of Quadratic Equivalent Circuit |
| Keyword(1) | Wireless Power Transfer |
| Keyword(2) | Equivalent Coupling Factor |
| Keyword(3) | Secondary-Side Conversion Equivalent Circuit |
| Keyword(4) | Efficiency Equivalent Coupling Factor |
| Keyword(5) | Power Transmission Coil Array |
| Keyword(6) | Relay Resonant Coil |
| 1st Author's Name | Hideaki Abe |
| 1st Author's Affiliation | *(*) |
| Date | 2023-06-30 |
| Paper # | WPT2023-11 |
| Volume (vol) | vol.123 |
| Number (no) | WPT-93 |
| Page | pp.pp.3-8(WPT), |
| #Pages | 6 |
| Date of Issue | 2023-06-23 (WPT) |