中文摘要：

基于光伏阵列的通用数学模型,借助计算机仿真和统计分析技术,对局部阴影条件下光伏阵列的输出特性进行了研究.统计分析结果表明,多峰功率-电压（P-U）特性曲线上相邻最大功率点（MPP）的电压间距较大,而且大部分案例中全局MPP位于电压轴右半边;全局MPP两侧的局部MPP功率呈单调递减趋势的概率较大;负载线与电流-电压（I-U）特性曲线的交点与全局MPP山峰有密切联系.根据统计分析结果,总结了多峰最大功率点跟踪（MPPT）算法设计时可借鉴的经验.

英文摘要：

With the help of computer simulation and statistical analysis,the characteristics of photovoltaic array output under partial shade are studied based on its general mathematical model.Results of statistical analysis reveal that,the voltage interval between adjacent MPPs（Maximum Power Points） in multi-peak P-U curve is bigger and most of the global MPPs lie at the right side of voltage axis in most cases;it has bigger probability that the power of local MPPs at both sides of global MPP decreases monotonously;the intersection of load line and I-U curve is closely associated with the global MPP.Experiences are summarized based on the results of statistical analysis for the design of multi-peak MPPT algorithm.