摘要
光伏发电系统在遮挡条件下会出现阴影效应,为了解决光伏阵列最大功率点跟踪方法精度低的问题,提出一种光伏阵列最大功率点跟踪方法.根据光伏发电系统的结构和局部遮挡条件下的最大功率点输出特性,由光伏电池等效电路建立光伏电池的数学模型,采用人工鱼群算法实现光伏阵列最大功率的轨迹跟踪,并在Matlab实验平台上测试其有效性.该方法克服了传统方法的局限性,能够对光伏阵列最大功率点进行高精度跟踪,提高了光伏阵列最大功率点的跟踪效率,改善了光伏发电系统的工作性能.
Photovoltaic power generation system in shaded conditions, there will be a shadow effect,in order to solve the problem of low accuracy of current tracking method for photovoltaic array maximum power point tracking method,proposed a novel photovoltaic array maximum power point. First analyzes the principle of photovoltaic power generation system and the output characteristics under the condition of partial occlusion,then according to the mathematical model of the photovoltaic battery equivalent circuit of photovoltaic cells is established, using artificial fish swarm algorithm of the mathematical model of the photovoltaic cell to solve the implementation of photovoltaic array maximum power tracking, finally on the Matlab experimental platform to test the effectiveness. This method overcomes the limitations of traditional methods,the PV array maximum power point tracking accuracy, and improve the photovoltaic array maximum power point tracking efficiency can be greatly improved the performance of photovoltaic power generation system.
作者
张萍
ZHANG Ping(Nanchong Vocational and Technical College ,Nanchong 637131 ,Sichuan,China)
出处
《内蒙古师范大学学报（自然科学汉文版）》
CAS
北大核心
2017年第3期369-372,376,共5页
Journal of Inner Mongolia Normal University(Natural Science Edition)
基金
四川省科技厅项目(2010GZ0301)
关键词
光伏发电系统
最大功率点
人工鱼群算法
数学模型
局部遮挡
photovoltaic power generation system
maximum power point
artificial fish swarm algorithm
mathematical model
partial occlusion
