光伏电站组件串联数的优化设计

Optimized Design for String Numbers of PV Power Station

目前光伏电站的光伏组件串的串联数的计算,因缺少光伏组件工作条件下的极限温度的校正方法,串联数的计算存在一定裕度。本文通过对光伏组件IV曲线进行拟合,仿真出特定串联数在不同环境温度、辐照值的组件电压变化曲线,从而得到基于机理模型的串联数。为类似工程提供了技术参考。

At present, the calculation of PV power station＇s string numbers lack correction way for the lowest temperature. So, the string numbers contains a certain margin. In this study, Firstly, we analyzed the PV module’s IV curve, Secondly, simulate the PV module＇s voltage curve at di？erent temperature and radiation, Finally, we get the string numbers based on the mechanism model for the power station in the future design works.