Tính toán tải trọng gió tác dụng lên tấm năng lượng mặt trời theo tiêu chuẩn Nhật Bản JIS C 8955 : 2017

Abstract

Designing wind load resistance for solar panel support structures is crucial to minimize economic losses and safety risks when solar panels and their supporting structures are subjected to strong winds. This paper presents a calculation of wind loads on the solar panel according to the Japanese standard JIS C 8955:2017. The study focuses on the impact of the solar panel's tilt angle and the surface roughness class on the calculated wind load acting on the solar panel. Additionally, the calculation method and the results are compared with the Vietnamese standard TCVN 2737-2023. The findings indicate that wind loads increase with the tilt angle of the solar panels. The gust effect factor of the wind load increases with the surface roughness class. Furthermore, there are notable differences in the coefficients and calculated wind loads acting on the solar panels between the JIS C 8955-2017 and the TCVN 2737-2023. For the JIS C 8955-2017, the wind load in negative pressure direction is always greater than the wind load in positive pressure direction, whereas for the TCVN 2737-2023, the wind load in positive pressure direction is always greater than the wind load in negative pressure direction. The results highlight the need for more detailed studies and standards tailored to this type of structure, suitable for conditions in Vietnam.