건물일체형 투광성 PV모듈의 설치각도별 발전특성에 관한 연구

Abstract

This study has analysed power output characteristics of transparent thin-film PV module depending on incidence angle and azimuth. The experiment results showed power outputs of transparent thin-film PV module applied to full-scale mock up model on slope of 90°, 30°, 0° to the south. The simulation results was evaluated power outputs of transparent thin-film PV module depending on incidence angle and azimuth after calibrating the experimental and computed data. As a result, the best power output performance of transparent thin-film PV module was obtained at slope of 30° to the south, producing the annual power output of 977kWh/kWp. The annual power output data demonstrated that the PV module with a slope of 30 ° could produce a 68 % higher power output than that with a slope of 90 °, with respect to the inclined slope of the module. Furthermore, the PV module facing south showed a 22 % higher power output than that facing to the east in terms of the angle of the azimuth. Specipically, the varying power output with incidence angle of PV module can be resulted from the influence of incidence angle modifier of glass on PV module. That is, the solar energy transmission can be reduced as an increase of incidence angle of PV module. Therefore, when the inclined slope of the PV module was over 70 ° there was a significant reduction of power output, and this was caused by the decrease of solar energy transmission in the transparent thin-film PV module.