摘要
光伏发电系统是目前用来替代地球上有限资源的最优系统,是一种清洁、无枯竭的能源.但是光伏发电系统的最大功率会受周围环境温度和太阳光光照的强度的影响,所以它的输出特性是具有非常明显的非线性特性.如何提高光伏系统的使用效率是现在亟待解决的问题.本文分析了常见的两种最大功率点的跟踪方法的特性,引进了变步长扰动观察法并对其做了详细的说明,根据研究发现此方法能实现对电池最大功率点的快速跟踪,能够大大提局系统的跟踪效率.
; Photovoltaic power generation system is currently used to replace the Earths limited resources, the optimal system is a clean and no exhaustion of energy. However, the maximum power of the photovoltaic system will be affected by the ambient temperature and the intensity of the sunlight, so its output characteristics are very obvious non-linear characteristics. How to improve the efficiency of the use of photovoltaic systems is now an urgent problem to be solved. In this paper, we analyze the characteristics of two kinds of tracking methods, which are common to the maximum power point, introduce the variable step perturbation observation method and explain it in detail. According to the research, this method can realize the fast tracking of the maximum power point of the battery. It can improve the tracking efficiency of the system greatly.
出处
《四川工商学院学术新视野》
2017年第2期31-34,共4页
Academic New Vision of Sichuan Technology and Business University
关键词
光伏发电系统
最大功率点
扰动观察法
变步长
Photovoltaic power generation system
maximum power point
disturbance observation method
variable step size
