无线电能传输系统谐振线圈优化设计

Optimal design of resonant coil of wireless power transmission system

以磁耦合谐振式无线电能传输系统两线圈等效电路模型为例,详细分析了谐振线圈的线圈半径、导线半径和线圈匝数等参数对谐振线圈电感和空载时的品质因数的影响;在电源频率为13.56MHz时,得出谐振线圈的优化参数如下:电感值为2.634×10-5 H,分布电容值为5.229×10-6μF,线圈半径为50mm,导线半径为1.05mm,线圈匝数为10匝。该优化结果对磁耦合谐振式无线电能传输系统的研究具有一定的参考价值。

Taking equivalent circuit model of two coils of magnetically-coupled resonant wireless power transmission system as example, the paper detailedly analyzed influence of parameters of resonant coil such as coil radius, wire radius and coil turns on inductance and quality factor at no-load state of the resonant coil. It got optimal parameters of the resonant coil as follows when power frequency is 13.56 MHz： value of the inductance is 2. 634× 10^-5 H, value of distributed capacitance is 5. 229×10^-6μF, the coil radius is 50 ram, the wire radius is 1.05 mm and the coil turns are 10. The optimal results have a certain reference value for research of magnetically-coupled resonant wireless power transmission system.