摘要
为解决目前白光LED光谱非连续性问题,设计出一种基于单色LED的太阳光谱合成方法。该方法通过构建单色LED光谱模型,采用最小二乘算法以最大相关指数R^2为优化目标,实现对太阳光谱的拟合。在理想峰值波长等间隔LED拟合的基础上,对非等间隔的单色LED进行最佳拟合求解,得到27种单色LED的最优组合,其相关指数R^2达到0.9576;通过递减实验,优化分析两组17种单色LED组合光谱的拟合结果,其混合光谱仍满足AM1.5的A级标准要求,实现了多种LED对太阳光谱的最佳拟合,同时降低了工程应用的难度。
In this study,we design a solar spectrum synthesis method based on monochrome LEDs to solve the problem of spectral discontinuity associated with white LED.The proposed method ensures the fitting of the solar spectrum by constructing a monochromatic LED spectral model by the least squares algorithm considering the maximum correlation index R^2 as the optimization target.Based on the ideal peak-wavelength equal-interval LED fitting,the simulation experiment is solved to obtain an optimal fitting solution for a non-equal-interval monochrome LED.Thus,we obtain an optimum number(27)of monochrome LED combinations,and the maximum correlation index R^2 is 0.9576.Furthermore,the spectral fitting result of two groups of 17 monochromatic LED combinations obtained by decreasing experiment is analyzed.The mixed spectrum meets the Class-A-level standard requirements of AM1.5.Thus,the best fit of various LEDs is achieved with respect to the solar spectrum,and the difficulty of engineering implementation is reduced.
作者
王宏民
唐帆
薛萍
Wang Hongmin;Tang Fan;Xue Ping(LED Photoelectric Engineering Research Center,Automation College,Harbin University of Science and Technology,Harbin,Heilongjiang 150080,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2020年第9期239-245,共7页
Laser & Optoelectronics Progress
基金
黑龙江省自然科学基金(F201310)
哈尔滨市科技创新人才项目(2016RAQXJ037)。
