高效率激光无线能量传输系统闭环控制研究

为了实现高效率激光无线能量传输系统的研究，基于Simulink建立了激光无线能量传输系统的闭环控制仿真模型，实现了激光光伏阵列的最大功率点追踪、降压电路搭建和锂电池智能充电控制，并结合激光光伏阵列的输出特性和锂电池多阶段恒流充电方法的特性，提出了一种基于激光功率密度闭环信号控制的新型锂电池多阶段恒流充电方法。结果表明，该方法不仅可以实现传统锂电池多阶段恒流充电效果，而且节省了62.9%的光能，系统转换效率提高了62.96%。该结果对研究高效率激光无线能量传输系统是有帮助的。

Research on closed-loop control of high-efficiency laser wireless power transmission system

In order to achieve the research of high-efficiency laser wireless energy transmission system, a closed-loop control simulation model of laser wireless energy transmission system was established based on Simulink. In this model, the maximum power point tracking of laser photovoltaic array, the construction of voltage reduction circuit, and the intelligent charging control of lithium battery were realized. Combining the output characteristics of the laser photovoltaic array and the characteristics of the lithium battery multi-stage constant current charging method, a new type of lithium battery multi-stage constant current charging method based on the laser power density closed-loop signal control was proposed. The simulation results show that this method can not only realize the multi-stage constant current charging effect of traditional lithium batteries, but also save about 62.9% of the light energy and increase the conversion efficiency of the system by 62.96%. The study is helpful for the research of high efficiency laser wireless energy transmission system.