基于植物光合作用的太阳光谱分离技术进展

Progress of Solar Spectrum Separation Technology Based on Plant Photosynthesis

现有的光伏农业项目中,光伏板影响植物生长的问题越来越突出。传统的光伏农业主要采用以下两种方法:直接在农田顶部铺设晶硅电池以实现太阳光的几何分离,或者使用具有固有光谱特性的非晶硅电池来分离太阳光,但这两种光伏农业都无法满足植物光合作用所需的光照,严重影响了作物的品质和产量。为解决上述问题,我们介绍了一种新型光伏农业方案——基于植物光合作用的太阳光谱分离技术,该方案将太阳光谱中植物光合作用所需波段精准分离,此部分能量只占太阳光总能量的10%,剩余90%的光能用于光伏发电。目前,实验系统所产生的功率可以达到每平方米70 W。实验结果表明,该方案可以实现植物生长与光伏发电的平衡,实现太阳能和土地的高效利用。

In the current photovoltaic agriculture（ APV） projects,the problem that photovoltaic panels seriously affect plant growth is becoming more and more obvious. Traditional APV mainly adopts the following two methods： laying crystalline silicon cells directly on the top of farmland to achieve geometric separation of sunlight,or using amorphous silicon cells with inherent spectral characteristics to separate sunlight,but both above types unable to get the illumination required for photosynthesis in plants,seriously affecting the quality and yield of crops. In order to solve the above problems,the article will introduce a new APV programs proposed by the Liu Wen’s team of University of Science and Technology of China. it is based on the solar spectrum separation technology of plant photosynthesis,which accurately separates the wavelength bands required for plant photosynthesis in the solar spectrum. This part of the energy accounts for only 10% of the total solar energy,and the remaining 90% of the light energy is used in PV. At present,the power generated by the experimental system can reach 70 W per square meter. The results show that this solution achieve a balance between plant growth and photovoltaic power generation. The new solution can realize efficient use of solar energy and land.