Full
Outline
Aiming at the problem that the relative position deviation of the transceiver coil in the magnetic coupling resonance wireless power transfer system leads to the rapid reduction of transmission power and efficiency, A power transfer mechanism with wide effective magnetic coupling region is constructed from the perspective of coil physical parameter optimization. The aim is to increase the anti-offset ability of the system under the allowable range of energy efficiency fluctuation. Firstly, the mapping relationship between system parameters and energy efficiency is derived, and the coil parameters which affect the high efficiency transfer of the system are analyzed. Then, the effective magnetic coupling region of power transmission is defined with the goal of high power and high efficiency transfer of the system. Based on this, the coupling coil parameters are analyzed and optimized, and an optimal strategy for selecting universal transceiver coil parameters is formed. Finally, in order to verify the correctness of the quantitative analysis of the effective magnetic coupling region and the effectiveness of the coil parameter optimization, a wireless power transfer system prototype is built. The results show that when the coupling distance is 5 cm and the efficiency is higher than 85% and the power fluctuation range is less than 25%, when the coupling coil is a regular quadrilateral structure and the area ratio of the transmitting and receiving coils is 1:2.89, the power transfer mechanism has the largest effective magnetic coupling area.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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