激光无线能量传输储能应用实验研究

Experimental research on the application of laser wireless energy transmission storage energy

设计、搭建了一套激光无线能量传输(LWPT)实验平台,它以808 nm的激光照射硅电池实现无线电能传输,以CN3791芯片进行后级储能电源管理,将LWPT应用于锂电池储能。对光电池激光照射下输出特性探究发现,随着入射激光功率密度增大,短路电流线性增大,开路电压缓慢趋近饱和,光伏转换效率增加到峰值10.98%后出现下降趋势,且温度对光电池电压有显著影响。以输出特性为依据进行后端储能环节设计,储能充电测试结果表明CN3791预设参数及内置CVT法MPPT控制成功作用。

Designed and built a set of laser wireless energy transmission(LWPT)experimental platform,which uses 808 nm laser to irradiate silicon battery to realize wireless power transmission,CN3791 chip for post-energy storage power management,and LWPT for lithium battery energy storage.The investigation of the output characteristics of the photovoltaic cell under laser irradiation found that as the incident laser power density increases,the short-circuit current increases linearly,and the open circuit voltage slowly approaches saturation.The photovoltaic conversion efficiency increases to a peak value of 10.98%and then appears to decrease,and the temperature affects the photovoltaic cell voltage significantly.The back-end energy storage link design is based on the output characteristics.The energy storage charging test results show that the CN3791 preset parameters and the built-in CVT method MPPT control are successful.