How to utilize the photovoltaic roof support system to wind load range?
With the developing of distributed photovoltaic power generation, more and more photovoltaic solar power installed in the flat roof of industrial buildings. At the geometrical structure of the house, however, the wind turbulence effect can lead to install in rooftop solar components under great rising wind.
with the development of distributed photovoltaic power generation, a growing number of photovoltaic solar power plant is installed in the ceiling industrial workshop. However, caused by the shell geometric shape of the wind turbulence effect will cause the installation on the roof of the solar modules of upward wind pressure. In order to satisfy the requirement of the roof waterproof and structure, can install ballast in the support system. Engineering to determine roof wind load in the traditional method is to use national standards related coefficient of wind load in the structural design standards. This method USES a large number of metal material, is not the economy, also bring hidden danger to the safety of the roof structure. Factory roof limited residual load capacity will bring security problems, so in the design of photovoltaic roof support needs a more economic and reasonable method to determine the coefficient of wind load of the roof. At home and abroad on the basis of scientific research work, the combination of Japanese and German wind tunnel test results, this paper proposes a photovoltaic roof support system of wind load interval dividing method, the method includes: building the Angle of the roof area, edge area C F, R and central Wind load coefficient according to the Angle of area C, the edge area, R and central area F: the wind suction coefficient for the C - Angle area 1. 8; The suction coefficient for the R - edge of the area 1. 6; The wind suction coefficient of the F - center area 0. 6; According to the corner area, edge area C F wind load coefficient, R and central area calculation is located in the area of pv support system pressure loads. Using photovoltaic roof support system of the static wind load area mechanical model that specify located in different parts of the coefficient of wind load, wind load to obtain correct distribution of photovoltaic roof support system of optimal ballast. Quick, easy segmentation process. Through the calculation of a single megawatt power plant, the optimized plan reduced more than 10% than before optimization support cost and load on the roof. Although the cost of pv support only a small part of the total cost of photovoltaic power station, but we have always been committed to innovation and technology improvement, to provide customers with more secure, more professional, more economical one-stop photovoltaic power station solution. Production of various solar stent reliable quality, novel styles, complete specifications, convenient installation. Simple packaging, convenient transportation and perfect structure makes a new generation of solar stent is more prominent.