说明：  通过改变对温度和光照强度，可以实现在不同条件下的电压与电流关系，和电压与功率关系。其中的光伏电池模块更是具有实用性，可以在多个控制模型中使用。
(By changing the temperature and light intensity, the relationship between voltage and current and the relationship between voltage and power can be realized under different conditions. The photovoltaic cell module is more practical and can be used in multiple control models.)