摘要
高空气球在太阳电池标定领域内应用越来越广泛,对标定精度的需求日益增加。常规的标定方法只考虑了对日精度,忽略了球体反射的太阳光对标定结果的影响,导致标定结果比理论值高出约5%。为此,提出一种球体反光影响分析方法。使用3阶贝塞尔曲线拟合球体形状并建立模型;计算试验中球体反射对标定装置接收不同波段光的影响;提出如何进行防护及计算球体反射可能的误差原因。采用高空气球和标定设备,在35000 m的高空上对18片太阳电池进行标定。试验和仿真结果表明,球体反射对标定的影响客观存在。仿真结果显示,球体反射导致短路电流最大增加了9.28%;试验数据显示,相较于标准太阳电池的不经过大气层的太阳光谱(AM0)值,实际短路电流高出约5.28%。最后,根据仿真结果,提出使用特定角度的遮光罩以避免球体反射对标定的影响。
Accurate calibration is becoming more and more necessary as high-altitude balloons are utilized more frequently for solar cell calibration.Conventional approaches produce calibration values that are roughly 5%higher than theoretical values because they only take into account direct sunlight precision and disregard the effect of spherical reflection.This paper proposes an analysis method for spherical reflection effects,which involves fitting the sphere’s shape using a third-order Bessel curve and modeling it.The method calculates how the sphere’s reflection affects the calibration device’s reception of different light wavelengths.18 solar cells were calibrated at a height of 35000 m using the high-altitude balloon and calibration apparatus that are part of the experimental setup.Both experimental and simulation results confirm the impact of spherical reflection.Simulation results show that reflection can increase short-circuit current by up to 9.28%,while experimental data indicate that the actual short-circuit current is about 5.28%higher than the air mass 0(AM0)value of standard cells.
作者
张益清
黄庭双
李永祥
杨燕初
徐国宁
ZHANG Yiqing;HUANG Tingshuang;LI Yongxiang;YANG Yanchu;XU Guoning(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;School of Aeronautics and Astronautics,University of Chinese Academy of Sciences,Beijing 101408,China)
出处
《北京航空航天大学学报》
北大核心
2025年第8期2767-2775,共9页
Journal of Beijing University of Aeronautics and Astronautics
基金
中国科学院稳定支持基础研究领域青年团队计划(YSBR-102)
国家重点研发计划(2022YFB3903000,2022YFB3903005)
作者简介
通信作者:徐国宁.E-mail:xugn@aircas.ac.cn。
