Relay Effect of Wireless Power Transfer Using Strongly Coupled Magnetic Resonances
| Autor: | Mingui Sun, Fei Zhang, Steven A. Hackworth, Chengliu Li, Zhi-Hong Mao, Weinong Fu |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Physics
business.industry Electric potential energy Near and far field Electronic Optical and Magnetic Materials law.invention Resonator Nuclear magnetic resonance Relay law Electronic engineering Maximum power transfer theorem Wireless Wireless power transfer Electrical and Electronic Engineering business Wireless sensor network |
| Zdroj: | IEEE Transactions on Magnetics. 47:1478-1481 |
| ISSN: | 1941-0069 0018-9464 |
| DOI: | 10.1109/tmag.2010.2087010 |
| Popis: | Wireless power transfer using strongly coupled electromagnetic resonators is a recently explored technology. Although this technology is able to transmit electrical energy over a much longer distance than traditional near field methods, in some applications, its effective distance is still insufficient. In this paper, we investigate a relay effect to extend the energy transfer distance. Theoretical analysis is performed based on a set of coupled-mode equations. Experiments are conducted to confirm the theoretical results and demonstrate the effectiveness of the relay approach. Our results show that the efficiency of power transfer can be improved significantly using one or more relay resonators. This approach significantly improves the performance of the present two-resonator system and allows a curved path in space to be defined for wireless power transfer using smaller resonators. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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