局部遮挡条件下的光伏阵列最大功率点跟踪

针对局部遮挡条件下光伏阵列存在多个局部峰值的问题，以准确跟踪到光伏阵列的全局最大功率点为目标，提出一种新型的局部遮挡条件下光伏阵列最大功率点跟踪方法。首先深入分析了局部遮挡条件下的光伏阵列输出特性，并构建了相应的数学模型，然后采用改进扰动观察法搜索到全局最优的光伏阵列最大功率点，防止陷入局部最优点难题，最后采用Matlab 2014仿真软件对其性能进行分析。结果表明，本文方法可以快速、准确找到光伏阵列最大功率点，提高了光伏阵列的输出效率。

Maximum power point tracking of PV array under partially shaded condition

There are many local peak value of PV array under the condition of partial occlusion, in order to track the global maximum power point of the PV array, so a new method of maximum power point tracking is proposed this paper. Firstly, partial occlusion of the output characteristics for PV array is analysis and builds the corresponding mathematical model, and secondly the perturbation method is used to search the maximum power point of the PV array which can prevent falling into the local maximum power point, finally, the performance is analyzed in Matlab 2014. The results show that the proposed method can quickly and accurately find the maximum power point, which can effectively improve the output efficiency of PV.