Abstract:Wireless power transmission system via magnetic resonance coupling displays its superiority in its higher efficiency, longer range and greater power output. This paper conducts research on series-parallel (SP) model, by analyzing the effects that the distance between the coils, operation frequency and load resistance may have on the efficiency and the output power from the view of equivalent circuits, and the expression of efficiency and power was obtained. Calculated by the Matlab, the results show that the frequency of the best efficiency point and maximum power point coincide under the condition of changing system frequency only. Compared with the efficiency, the output power is more sensitive to frequency changes. A wireless power transmission system with series-parallel structure via magnetic resonance coupling is designed and created in this paper, and the correctness of the aforementioned analyses is verified through the experimental results.
黄学良, 吉青晶, 谭林林, 王维, 赵家明, 周亚龙. 磁耦合谐振式无线电能传输系统串并式模型研究[J]. 电工技术学报, 2013, 28(3): 171-176.
Huang Xueliang, Ji Qingjing, Tan Linlin, Wang Wei, Zhao Jiaming, Zhou Yalong. Study on Series-Parallel Model of Wireless Power Transfer via Magnetic Resonance Coupling. Transactions of China Electrotechnical Society, 2013, 28(3): 171-176.
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