光伏建筑一体化在建筑立面和屋顶的安装方法研究

Research on Method of Installing Building Integrated PV on Building Facade and Roof

近年来,国内外密集出台对节能建筑的支持政策,在绿色建筑方向上达成了共识。光伏建筑一体化(BIPV)是解决节能建筑用电需求的关键技术。本文总结了BIPV的应用价值,结合具体项目对利用建筑围护结构发电的光伏组件安装方案进行了研究。外墙和屋顶作为建筑围护结构将与光伏组件整体安装。外墙安装受到场地地理位置的影响,因此特定方向的产能将明显高于其他方向,并对光伏组件安装的倾角进行计算,找到倾斜的最佳角度。同时,对不同情况下平面屋顶安装光伏的能量效率进行评估。

In recent years,supporting policies for energy-efficient buildings have been intensively introduced both at home and abroad,and a consensus has been reached on green buildings.Building integrated PV(BIPV)is a key technology to solve the electricity demand of energy-efficient buildings.This paper summarizes the application value of BIPV,and studies the installation scheme of PV modules that generate electricity by using building envelope based on the experience in specific projects.As building envelopes,the exterior wall and roof will be installed together with PV modules as a whole,the installation of exterior wall will be affected by the geographical location of the site,thus the production capacity in a specific direction will be significantly higher than that in other directions.The installation dip angle of PV modules was calculated to identify the best angle of inclination.In addition,the energy efficiency of photovoltaic installation on flat roof under different conditions is evaluated in the paper.