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Enhanced performance metrics under shading conditions through experimental investigations

机译:通过实验调查,在阴影条件下提高性能指标

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The phenomenon of partial shading adversely affects photovoltaic arrays, e.g. multiple peak points in characteristic curves and reducing the output power. Array reconfiguration is the best and efficient way of alleviating the partial shading effects. Physical relocation of panels can be used as a practical solution to prevent shading problems by altering the physical location of panels by not changing its electrical circuit. In this study, a new reconfiguration technique named as Arrow Sudoku pattern is proposed for all the conventional configurations such as, series–parallel, bridge-link, honeycomb, and total cross-tied connections to mitigate the shading effects. The proposed approach is tested on a Solar Photo-Voltaic (SPV) array for different groups of shading conditions. The results are simulated through MATLAB/Simulink and validated through hardware prototype using artificial shade blockers and the results show a good improvement in the diagnosis of output parameters for all the reconfiguration techniques in comparison with their initial configurations. Moreover, the disturbance caused in characteristic curves by shading is eradicated by using this proposed technique.
机译:部分阴影的现象对光伏阵列产生不利影响,例如,光伏阵列。多个峰值点<内联公式/> - <内联公式/> 特征曲线和降低输出功率。数组重新配置是减轻部分着色效果的最佳和有效的方法。面板的物理搬迁可以用作通过不改变其电路来防止面板的物理位置来防止阴影问题。在这项研究中,为所有传统配置提出了一种名为Arrow Sudoku模式的新的重新配置技术,例如串行,桥接链路,蜂窝和总交叉连接的所有传统配置,以减轻阴影效果。所提出的方法是测试的<内联公式/> 用于不同遮阳条件组的太阳能光伏(SPV)阵列。通过MATLAB / Simulink模拟结果,并通过使用人工阴影阻滞剂通过硬件原型进行验证,结果表明,与其初始配置相比,所有重新配置技术的输出参数诊断良好的改进。而且,造成的干扰<内联公式/> - <内联公式/> 通过使用这种提出的技术来消除通过着色的特征曲线。

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