不同背板晶硅光伏组件在湿热环境下的性能研究

摘要

选取 CPE、KPE、TPT、AAA 四种不同背板制备的多晶硅光伏组件，将其直接固定电阻负载投试到海南琼海湿热气候环境试验场，研究四种不同背板晶硅组件在真实环境应用的性能变化规律。利用热电偶对组件表面工作的温度进行实时监测以及利用实验室 I －V 测试仪对试验组件的 I －V 特性参数进行周期性测试，记录这些参数随组件试验时间的变化情况。结果表明：试验组件的温度越高，其最大功率、填充因子衰减越大。 CPE、KPE、TPT 和 AAA 四种不同背板的组件，整体温度最高和最大功率（Pm）、填充因子（FF）的衰减最大，串联电阻的增加最多均为 CPE 背板组件，其次是 KPE 背板组件，TPT 背板组件次之，最小为 AAA 背板组件。%The polysilicon PV modules with CPE,KPE,TPT and AAA backsheets loaded with fixed re-sistance were studied for the performance of the long term exposure in the hot and humid climate test site (Qionghai,Hainan).The surface temperature of modules were recorded by the thermocouple sensors for real -time monitoring and the I -V properties of modules were tested by I -V tester after a certain time. The results showed that the maximum power and fill factor degraded remarkably with increasing tempera-ture of PV moudules.Compared with other modules,the module with CPE backsheet had the highest sur-face temperature,then the most severe degradation of maximum power and fill factor and the bigger in-crease of series resistance.