独立式光伏发电系统MPPT功能的设计与仿真

Design and Simulation of the MPPT Function for Independent Photovoltaic Power Generation System

为了实现光伏发电系统输出功率的最大化,设计了基于扰动观察法的具有MPPT功能的独立式光伏发电系统,并在Matlab/Simulink环境下进行了仿真研究。仿真结果表明,采用扰动观察法实现光伏发电系统的MPPT功能,在光照强度恒定和变化时均能达到系统最大输出功率,且具有良好的动态特性。

This paper designs a kind of independent photovoltaic power system with the maximum power point tracking（MPPT）function based on the perturbation and observation method in order to realize the maximization of power generation,then simulates in the Matlab/Simulink.The results show that the system with the MPPT function outputs a maximum power when the insolation is either constant or varied,and it has excellent dynamic characteristics.