中文说明：
关于光伏发电的两篇文章，一篇对光伏电池的通用模型进行了详细分析，一篇对带MPPT仿真的光伏阵列通用仿真模型。
English Description：
There are two articles about photovoltaic power generation, one is a detailed analysis of the general model of photovoltaic cells, and the other is a general simulation model of photovoltaic array with MPPT simulation