建筑物太阳电池板不同安装方式下的聚光增益

摘要

为提高光伏一体化建筑太阳能的利用率,提出一种求瞬时太阳辐射能的数学模型,并通过对其积分获得太阳电池板年聚光量的计算方法.为修正误差,引入月平均日照系数.以建筑物光伏一体化国家重点试点地区为例,计算了太阳电池板的最佳坡度角及四种典型安装方式下的年聚光量和聚光增益.结果表明,与南立面安装的太阳电池板相比,最佳坡度角、纬度角和平顶安装的太阳电池板年均聚光增益分别为64.54％、64.45％、45.94％.%To improve the usage ratio of solar energy on building integrated photovoltaics,a calculation method was proposed to obtain instantaneous solar radiation energy and it was integrated to acquire the annual collection energy of PV panels.The monthly average sunshine coefficient was introduced to correct the deviation.With the example of the photovoltaic experimental area,the optimum slope angle of PV panels was calculated;the annual collection energy and energy gain in four typical installation modes were obtained.The result shows that compared with the south elevated installation,the annual energy gain of PV panels installed at the optimum slope angle,optimum latitude angle and level angle are 64.54％,64.45％ and 45.94％.