光伏发电系统最大功率跟踪技术

摘要

基于降低光伏发电的成本，提高光伏电池发电效率的目的，本文对采用增量电导法来跟踪光伏电池的最大功率进行深入的研究，分析其输出伏安特性、对采用BUCK电路电实现增量电导法来提高功率的设计进行论述、从数学原理来证实增量电导法的实施正确性、并提供了程序控制思路与编制流程。在大量的实验的基础上。采集到日光强度改变时基站电源运行情况的数据，为提高太阳能电池的利用率提供了实践依据。%In order to reduces its cost and strengthens the solar battery's transfer efficiency,the article used to the method of Incremental conductance to track the maximum power of photovoltaic cells. In the paper we also analysis the output current- voltage characters. The design was discussed about the BUCK circuit to increase the power.It prove that method correctness of Incremental conductance from the mathematical theory.And provide the ideas and methods of program control. In a large number of experimental,we collect abundant operation data when sunlight continuely changes. The data provide practical base to improve the utilization rate of solar cells.