基于遗传算法的RGBW混光优化研究

发布时间：2018-01-21 09:29

本文关键词： 光电子学动态色温遗传算法 LED混光发光二极管　出处：《发光学报》2017年02期 　论文类型：期刊论文

【摘要】：根据RGBW四色混光原理,采用脉冲宽度调制(PWM)调光方式,建立目标色坐标与占空比的关系方程,采用遗传算法对混合光的光通量和一般显色指数进行多元约束下寻优,在3 571~11 082 K色温范围内选取13组目标色温,采用Matlab软件进行优化仿真,最后通过实验验证。结果表明:采用遗传算法对混合光进行光通量最大化寻优,能够使混合光的光通量最高可达166.062 lm;采用遗传算法对一般显色指数进行最大化寻优,能够使混合光的一般显色指数最高可达88.3。为了保证混合光光源同时兼具高光通量和高显色性能,采用遗传算法对光通量和一般显色指数同时寻优,并采用Matlab进行模拟实验,结果表明:通过同时优化光通量和一般显色指数,能够保证混合光的一般显色指数大于82时兼具适用于大多数照明场所的高光通量。
[Abstract]:According to the four-color mixing principle of RGBW, the relation equation between the color coordinate and duty cycle of the target is established by using the pulse width modulation (PWM) dimming mode. The light flux and general chromogenic index of mixed light were optimized by genetic algorithm, and 13 groups of target color temperature were selected in the range of 3 571N 11 082K color temperature. Matlab software is used to optimize the simulation. Finally, the experimental results show that genetic algorithm is used to optimize the luminous flux of mixed light. The maximum luminous flux of the mixed light is 166.062 lm; Genetic algorithm is used to maximize the general color rendering index, which can make the general color rendering index of mixed light up to 88.3.In order to ensure that the hybrid light source has both high luminous flux and high color rendering performance. A genetic algorithm is used to optimize the luminous flux and the general chromogenic index at the same time, and the simulation experiment with Matlab is carried out. The results show that the luminous flux and the general chromogenic index are optimized simultaneously. It can ensure that the general color rendering index of mixed light is larger than 82 and has high luminous flux suitable for most lighting sites.
【作者单位】：华南理工大学自动化科学与工程学院;华南理工大学发光材料与器件国家重点实验室;
【基金】：广东省科技计划(2011A081301017,2012A080304001,2012A080304012,2013B090600048)资助项目~~
【分类号】：TM923.34;TP18
【正文快照】： 1引言白光LED具有体积小、响应时间短、低功耗、高可靠性、环保及长寿命等一系列优点,作为第四代照明光源,LED正逐步取代白炽灯、荧光灯等传统光源。目前,LED光源在家庭照明、交通照明、植物培养等领域得到广泛的应用[1-3]。目前,大部分LED光源只能实现单一色温的照明。然而,

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