局部阴影条件下光伏阵列的优化设计

随着光伏发电系统的结构及所处环境的复杂化(如光伏屋顶系统、光伏幕墙系统等)，尤其是局部阴影问题的出现，光伏阵列的输出特性受到很大影响。通过理论分析、计算机仿真及系统实验等方法，研究阴影分布的影响，提出在局部阴影条件下光伏阵列最大功率点的简化算法，总结阵列结构优化的原则，并在此基础上进一步考虑局部峰值及工作电压范围等因素的影响。提出适用性较广的光伏阵列优化设计方法，为光伏发电系统的工程设计提供有力的支持。

Optimal Design of Photovoltaic Arrays Under Partial Shading

As complexing of structure and potential application areas of photovoltaic (PV) generation systems (for example PV roof systems, PV curtain wall systems), especially considering partial shading phenomenon, there are great impacts on the output characteristics of PV arrays. Influences of shading distribution were investigated by theoretical analysis, computer test and experiment,et al. A simplified calculation method for the solution of maximum power point (MPP) of a PV array under partial shading was proposed. Furthermore, the basic principle of the optimization of PV array configuration was summarized as well, and at the same time, a general method for the optimal design of PV arrays with consideration of local peaks and system voltage limits was presented. The proposed design method and corresponding experimental results provide strong support for the engineering design of PV systems.