微电网中光伏电池的动态因素影响分析

Influence of dynamic factors on photovoltaic cells in microgrid

针对含有光伏发电系统的微电网运行效率不高的问题,基于光伏电池输出具有高度非线性的特征和光伏电池的基本数学方程,提出了一个通用的光伏电池模型,根据该模型可以为微电网中光伏发电系统的电池模块选择最佳光强和温度,进而提高光伏系统的发电效率。仿真结果表明:该模型简单实用,能够很好地反映光伏电池实际特性,可为含有光伏发电的微电网控制策略的选择提供参考。

Aiming at the problem of low running efficiency in micro -grids which containsphotovoltaic （PV）power generation system,based on the non-linear output character and basicmathematical equation of photovoltaic cell,puts forward a generalized model of the photovoltaiccell,according to this model can choose optimum light intensity and temperature for PV powergeneration system in microgrid,and then improve the power generation efficiency of PV system. Thesimulation result shows that the model is simple and practical,and can reflect the actualcharacteristics of the cell,provide referrence for control strategy selection of micro -grid whichcontains photovoltaic power generation system.