蓄冷降温式太阳电池组件的实验研究

根据太阳电池温度特性,研究通过工程热物理途径来提高太阳电池光电转换效率的方法,开发出新型蓄冷降温式太阳电池组件,利用夜间大气自然冷量吸收太阳电池热量,降低其工作温度。室外试验于07年10月～08年11月在广州地区进行,测试分析了该组件及对照组平板式太阳电池组件的温度—电能输出及转换效率特性。结果表明:与平板式组件相比,蓄冷降温式太阳电池组件工作温度大大降低,效率相应提高。蓄冷降温式组件最大温降达26.5℃,瞬时电能输出相对提高18%,全天电能输出增长14%以上。

STUDY ON SOLAR PV MODULE WITH COOL-STORAGE MODE

Solar PV module with cool-storage mode, a new type of photovoltaic module integrated a cool storage tank was developed for improving the conversion efficiency of solar cell by engineering thermophysics ways. Outdoor experiments were done from Oct., 2007 to Nov., 2008, and the characteristics of temperature, power output and conversion efficiency of the PV modular were measured and analyzed. The results show that operating temperature of the solar PV module with cool-storage mode has been greatly reduced, and the effciency has a corresponding increases. Comparing with the flat solar PV module, the maximum temperature drop of solar PV module with cool-storage mode is up to 26.5℃, instantaneous power output raises 18% relatively as well as the daily power output increases more than 14%.