Author(s)

Junhao Guo

Corresponding Author

Junhao Guo

Abstract

With the rise of renewable energy sources and the increasing awareness of environmental protection, the efficiency of photovoltaic power generation has attracted much attention, and the tilt angle of photovoltaic panels has a significant effect on the reception of solar radiant energy, which is a key factor in optimizing the performance of the system. In this study, an astronomical algorithm is used to construct a model of solar radiation energy received by photovoltaic panels. Firstly, the atmospheric attenuation coefficient is determined by Lambert-Beer law, the intensity of solar radiation at different tilt angles is calculated, the solar radiation energy is obtained by numerical integration method, and the average monthly total solar radiation energy corresponding to tilt angles of 20°, 40°, and 60° is obtained to be 4731.84Wh, 4793.82Wh, and 4277.58Wh respectively. The results show that the tilt angle of the Photovoltaic panels should be adjusted according to the different months so that the panels can absorb the most solar radiation energy in each month to improve the power generation efficiency, and then promote the transformation of global energy structure and sustainable development.

Keywords

Photovoltaic panels, Lambert-Beer law, numerical integration method, solar radiation energy model