摘要
针对光伏阵列发电系统,在局部阴影情况下,研究推导光伏阵列数学模型。同时,分析加装旁路二极管、光伏阵列拓扑结构、光照强度大小及分布形状对光伏阵列输出特性的影响,并且分析了传统功率跟踪优缺点。提出一种全局最大功率搜索与局部功率极值跟踪相结合的全局最大功率跟踪算法,并进行Matlab/Simulink仿真分析。实验结果证明了该策略的有效性与正确性。
For photovohaic array power systems, mathematical model of photovohaic array under partial shade is researched.At the same time,output characteristics of the photovoltaic array under bypass diodes,photovoltaic array topology and light intensity are analyzed.The strength and weakness of traditional power tracking is studied.The global maximum power search with local power extremum tracking and tracking control algorithm are proposed.Matlab/ Simulink simulation model is built and the validity and correctness of strategy are proved by test results.
出处
《电力电子技术》
CSCD
北大核心
2016年第4期44-47,共4页
Power Electronics
关键词
最大功率跟踪系统
光伏阵列
局部阴影
maximum power tracking system
photovoltaic array
partial shade
