多负载无线充电技术在无人机应用分析

Application analysis of multi load wireless charging technology in UAV

多负载无线充电技术可解决多个无人机续航能力问题,可提高无人机充电安全性和智能化。设计了一种无人机群集中式无线充电系统,发射端采用单电源发射线圈串联连接,接收端是多个谐振电路与负载连接的独立单元。通过耦合电路分析理论推导系统传输效率公式,结合MATLAB仿真软件分析了传输效率与负载、互感系数的关系,传输效率随着负载增大先增加达到峰值后逐渐减少。通过仿真可得接收端负载电压值VRL等于发射端电压Vp除以接收端负载个数N。

Absrtact: Multi load wireless charging technology can solve the endurance problem of multiple UAVs and improve the charging safety and intelligence of UAVs. In this paper, a centralized wireless charging system for UAV group is designed. The transmitter is connected in series with a single power supply transmitter coil, and the receiver is an independent unit connected with multiple resonant circuits and load. Based on the coupling circuit analysis theory, the transmission efficiency formula is deduced. Combined with MATLAB simulation software, the relationship between transmission efficiency and load, mutual inductance coefficient is analyzed. With the increase of load, the transmission efficiency first increases and then decreases. Through simulation, the value of load voltage V at the receiving end can be obtained VRL is equal to the transmitter voltage Vp divided by the number of load N at the receiving end.