基于双边LCC谐振网络的功率可调无线充电系统设计

Design of double LCC resonant network for power adjustable wireless power transfer system

针对小功率无线充电系统功率不可调的问题,提出了一种基于双边LCC谐振补偿网络的功率可调充电方案,建立了无线充电系统等效模型,分析控制常量对系统输出功率以及传输效率的影响。设计了无线充电实验系统,通过实验改变控制常量,对负载和输出功率以及传输效率分析。实验结果表明:通过调整控制常量,对3~15Ω负载,输出功率均可以实现3~10 W可调,且系统最大传输效率为88%,能够实现无线充电系统功率可调的目的。

Aiming at the problem that the power of low-power wireless power transfer system is not adjustable,a power-adjustable charging scheme based on the double LCC resonance compensation network is proposed.The equivalent model for the wireless power transfer system is established,and the influence of the control constant on the system output power and transmission efficiency is analyzed.A wireless power transfer experimental system is designed,change the control constants by experiment to analyze on load,output power and transmission efficiency.The experimental results show that by adjusting the control constant,the output power can be adjusted to 3~10 W for 3~15Ωload,and the maximum transmission efficiency of the system is 88%,which can achieve the purpose of adjustable power of the wireless charging system.