摘要
在光伏最大功率跟踪(maximum power point tracking,MPPT)系统中,针对传统的扰动观察法(perturbation and observation,P&O)难以同时满足跟踪速度和精度要求的问题,在原有的短路电流法的基础上,引入一种改进的扰动观察法,该算法不仅能够消除最大功率点附近的震荡,而且还能有效地提高响应速度。利用MATLAB/Simulink平台进行仿真,实验结果表明了算法的有效性。
In the photovoltaic maximum power point tracking (MPPT) system,the conventional perturbation and observation(P&O) method is difficult to meet the requirements of tracking speed as well as accuracy.On the basis of existing short circuit current method,an improved perturbation and observation(P&O) method was introduced in this paper.The new algorithm can not only eliminate the oscillation around the MPP,but also raise the speed of dynamic response.The results on MATLAB/Simulink platform show its effectiveness.
出处
《信息技术》
2014年第1期75-77,82,共4页
Information Technology
关键词
光伏系统
最大功率跟踪
短路电流
扰动观察法
photovoltaic system
MPPT
short circuit current
perturbation and observation