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Research on an optimized maximum power point tracking algorithm avoiding local under partially shaded conditions in photovoltaic system
Author(s): 
Pages: 13-16
Year: Issue:  1
Journal: Renewable Energy Resources

Keyword:  光伏阵列 局部阴影 多峰特性 最大功率点跟踪;
Abstract: 光伏阵列受到局部阴影遮蔽时其P-V特性会呈现多峰特性,出现多个局部峰值。为了避免传统最大功率点跟踪算法在此情况下难以找到全局的最大功率点,文章提出了一种优化最大功率点跟踪算法,该算法适用于局部和全局阴影发生的情况。在局部阴影情况下,通过MATLAB仿真和样机试验与传统最大功率点跟踪算法相比,该优化算法能够判断阴影遮蔽情况是否发生,在局部和全局均一阴影的情况下都能够跟踪到全局最大功率点,避免光伏阵列的功率损失,提高光伏系统效率。
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