建筑的形态、环境与光伏系统输出功率差异

Configuration and Environment of Building and the Difference of Output Power of Photovoltaic System

建筑及其环境的原因可造成串、并联在起的同样的光伏电池组件形成不同的输出功率。一定程度的输出功率差异不仅使总输出功率减少,而且会在电池板上产生热斑效应,损害电池寿命。探讨了与建筑形态、环境有关的使建筑光伏系统中产生输出功率差异的污垢、阴影以及非平面方面的原因,以及当功率差异无可避免时的处理方法。

The conditions of building and its environment can make the series-wound or shunt-wound photovoltalc modules have some difference, This difference may be so appreciable that not only reduce the total output power but also produce ＂hot spot＂ effect in PV cells and damage its life, in this paper, we discussed the causations concerning the configuration and environment of building in respects of dirt, shadow and non-plane which make building integrated photovoltaie （BIPV） system have some difference, and the disposal methods when could not avoid these difference.