耦合反射补光及导流降温技术的阵列式光伏电站增效研究

Study on synergy of array photovoltaic power station coupled with reflection complementary light and diversion cooling technology

从改善光伏外部运行条件的思路出发,研究反射补光技术及导风降温技术对组件转化性能的影响。通过前置反光器件将散落在阵列间隙的太阳能汇聚到组件表面,增加组件单位面积上的辐照量;组件背部利用导流板引导环境风横略吹扫组件,降低组件温度,提高组件转化效率。结果表明,反光镜镜面最佳倾角为40°,宽度为130 mm,此时光伏组件输出功率可增加9.202%;导流板最佳宽度为5 cm,倾角为30°,片数为4,耦合补光及降温,光伏组件综合效率可提升约12.49%。

From the idea of improving the external operating conditions of photovoltaic,the influence of reflection complementary light technology and wind guide cooling technology on the conversion performance of photovoltaic modules was studied.The solar energy scattered in the gap of the array is converged to the surface of the module through the front reflector to increase the irradiation amount per unit area of the module.The back of the module uses a deflector to guide the ambient wind to sweep the module,which reduces the temperature of the module and improves the conversion efficiency of the module.The results show that the optimum inclination angle of the reflector is 40°and the width is 130 mm,and the output power of the PV module can be increased by 9.202%.The optimum width of the deflector is 5 cm,the inclination angle is 30,and the number of plates is 4.Coupling light supplement and cooling,the comprehensive efficiency of photovoltaic modules can be improved by about 12.49%.