激光供能无人机接收端的光伏阵列重构方案  

Photovoltaic array reconstruction scheme of laser powered UAV receiver

作　　者：潘松 彭小峰 曹阳 PAN Song;PENG Xiao-feng;CAO Yang(School of Electrical and Electronic Engineering,Chongqing University of Technology,Chongqing 400054,China)

机构地区：[1]重庆理工大学电气与电子工程学院,重庆400054

出　　处：《激光与红外》2022年第8期1216-1222,共7页Laser & Infrared

基　　金：重庆市科学技术局项目(No.cstc2019jcyj-msxmX0233,No.cstc2017shmsA40019);重庆市教育委员会项目(No.KJQN201901125);重庆市教委科学技术研究项目(No.KJQN201901103);巴南区科学技术局项目(No.2019TJ07)资助。

摘　　要：激光供能无人机是以激光作为能量载体,对无人机进行实时无线能量传输,提升无人机续航时间。由于激光束能量分布不均匀,导致光伏接收器效率低下。为提高接收器转换效率,针对全交叉连接结构优化问题,提出一种基于最小均衡差的重构方案。首先对激光高斯分布情况进行数学建模,获取光伏电池单体的辐照度。然后利用最小均衡差原则对全交叉连接结构进行优化,并对各种连接结构进行仿真。仿真结果表明:阵列重构后具有更高的输出功率、转换效率和填充因子,更低的功率损耗,且相较于重构前最大输出功率分别提升了29.13%、32.25%。Laser powered UAV uses laser as an energy carrier to transmit real-time wireless energy to improve the endurance of UAV.The uneven energy distribution of laser beam results in low efficiency of photovoltaic receiver.In order to improve the conversion efficiency of receivers,a reconfiguration scheme based on minimum equalization difference is proposed for the optimization of fully cross-connected structures.Firstly,mathematical modeling of the laser Gaussian distribution is performed to obtain the irradiance of photovoltaic cells.Then,the full cross-connection structure is optimized using the principle of minimum equilibrium difference,and various connected structures are simulated.The simulation results show that the array reconfiguration has higher output power,conversion efficiency,filling factor and lower power loss,and the maximum output power is increased by 29.13%and 32.25%respectively compared with that before reconfiguration.

关 键 词：激光供能 等效模型 辐照度分布 阵列重构 

分 类 号：TN249[电子电信—物理电子学]