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电网技术  2015 

局部阴影下光伏阵列非机理建模

DOI: 10.13335/j.1000-3673.pst.2015.05.003, PP. 1186-1191

Keywords: 光伏阵列,局部阴影,曲线拟合,非机理模型

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Abstract:

现有的阴影条件下的光伏阵列机理模型多为分段函数形式,较为复杂。提出采用傅里叶函数并使用曲线拟合的方法对阴影条件下光伏阵列进行非机理建模。改进了局部阴影条件下的光伏阵列的机理模型,获取光伏阵列的输出数据并进行线性插值。选取不同阶数的傅里叶函数对单阴影和多阴影条件下的光伏阵列的输出进行曲线拟合。该非机理模型具有统一的数学表达式,不需要分段描述,能对不同功率等级、不同精度要求的光伏阵列进行建模,简化了模型。

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