Research on Array Layout Method of Photovoltaic Panel in Mountain Photovoltaic Power Generation Project Based on BIM

Due to the uneven terrain, different orientations and irregular topographical changes in mountain photovoltaic power generation projects, the selection of photovoltaic array layout area, the orientation and inclination of photovoltaic arrays, and the spacing of photovoltaic arrays determine the amount of light received and power generation efficiency of photovoltaic arrays during the design process. Therefore, it is necessary to determine the appropriate layout area, the orientation and inclination of the photovoltaic array, and the spacing between the photovoltaic arrays to ensure that there is no more serious shadow shading phenomenon and to obtain the maximum amount of solar radiation. In order to solve the problem of the arrangement of photovoltaic arrays in mountainous terrain, this paper proposes an automatic arrangement method of photovoltaic panels based on a 3D design environment. In the 3D design environment, the appropriate layout area is selected according to the requirements of the code. The layout of the photovoltaic array is carried out according to the site conditions. In addition, the 3D lighting technology is used to simulate the real sun illumination to check the shadow occlusion of the photovoltaic array, which greatly improves the design efficiency and quality on the basis of visualization.