太阳能光伏电池板冷却及发电效率的研究

Research on Solar Photovoltaic Panel Cooling and Power Generation Efficiency

摘要: 不同的冷却方式对降低太阳能电池温度、提高光伏发电效率是不同的。本文结合近年来国内外相关研究成果，在对比分析三种传统的自然循环冷却、强制循环冷却和太阳能光伏光热冷却及新型冷却系统的冷却及发电效率基础上，通过模拟仿真实验得到：自然循环冷却的经济性很强；强制循环冷却适用于实验与研究；新型太阳能光伏光热冷却效果最好、特别是与建筑相结合后有着常规技术不可比拟的优势，但成本较高；与传统PV/T系统相比平板式PV/T系统使工质与太阳能电池的温差更低，可比较有效地解决PV/T系统电输出和热输出矛盾的问题，有效提高高品位能的转化和利用，适宜于推广开发。

Abstract: Different cooling methods are different for reducing the temperature of solar cells and improving the efficiency of photovoltaic power generation. Combining with the related research results at home and abroad in recent years, the comparative analysis of three kinds of traditional natural cir-culation cooling, forced circulation cooling and solar photovoltaic solar-thermal cooling and on the basis of the new cooling system cooling and power generation efficiency, is obtained by simulation experiment; natural circulation cooling of the economy is very strong. The forced circulation cooling is suitable for experiment and research. The new solar photovoltaic solar thermal cooling effect is the best, especially when combined with the building. It has the advantage of unmatched conven-tional technology, but the cost is higher. Compared with the traditional PV/T system, plate type PV/T system let the temperature between working medium and solar cells lower. It can also effectively solve the PV/T system power output and heat output contradictory problem, can effectively improve the high grade transformation and utilization, suitable for promotion of development.