摘要
Abstract
As a form of"PV+",agrivoltaics is currently in the stage of accelerated development.However,there is no in-depth research on the overall stress situation of PV arrays in agrivoltaics projects when they are affected by complex loads.Based on this,this paper takes a certain agrivoltaics project as an example and uses Rhino software to construct a 3D model of the PV array.After considering the stress on the PV bracket foundation,FLAC 3D numerical analysis software is used to study the overall mechanical characteristics of the PV array under complex loads.The research results show that:1)PV modules have the largest deformation under considering self weight load conditions,and the deformation severity under extreme snow load conditions is greater than that under extreme wind load conditions,but similar to the deformation degree under extreme wind and snow load conditions.Under various operating conditions,for a single PV module,the stress of most PV modules shows the characteristics of a large middle area and small upper and lower end areas.2)The overall deformation trend of PV brackets under different operating conditions is considering self weight load conditions>extreme wind and snow load conditions>extreme snow load conditions>extreme wind load conditions.However,the maximum deformation of PV brackets under extreme wind and snow load conditions,extreme snow load conditions,and extreme wind load conditions is not significantly different,and is much smaller than that under considering self weight load conditions.Under various operating conditions,the stress on the PV bracket is concentrated at the front,middle,and rear ends of the inclined beam,and the stress of the front slant support is much greater than that of the rear slant support.Therefore,it is necessary to strengthen the PV bracket components.3)Under extreme wind load conditions,extreme snow load conditions,and extreme wind and snow load conditions,the extreme wind and snow load condition has the greatest adverse effect on the PV array,but the deformation impact of considering self weight load conditions on the PV array is greater than the first three conditions.In addition to ensuring the stability of PV arrays under considering self weight load conditions,attention should also be paid to the deformation of PV modules and PV brackets under extreme wind and snow load conditions.The research results can provide technical support for the design and construction of PV arrays in similar projects.关键词
农光互补/光伏阵列/光伏支架/光伏组件/受力分析/极端荷载/稳定性Key words
agrivoltaics/PV array/PV bracket/PV modules/stress analysis/extreme loads/stability分类
信息技术与安全科学
