基于Z源逆变的光伏系统MPPT模糊控制研究

The research MPPT fuzzy control based on the Z-source inverter of photovoltaic system

文章介绍了Z源逆变电路的原理,并设计了一种基于模糊控制的MPPT算法,实现了对最大功率快速和精确的追踪。最后,文章利用MATLAB软件对该太阳能独立发电系统进行了仿真,得到了相应的光伏组件的输出特性曲线以及MPPT算法下的最大功率追踪曲线,仿真结果表明,该模糊控制法可实现对MPPT的更好控制。

this article introduces the Z-source inverter circuit principle. Arid then designed a kind of MPPT algorithm based on fuzzy control algorithm to get the Pmax tracking rapidly and accurately. At last, this paper also uses the MATLAB software to simulate the solar energy independent power genera- tion system, obtained the corresponding output characteristics curve of the photovoltaic modules and the MPVI＇ tracking algorithm on Pmax. Therefore, the fuzzy control method can achieve better control of MPPT.