基于玻尔兹曼函数的光伏MPPT系统研究

The Photovoltaic MPPT System Research Based on Boltzmann Function

光伏发电系统的效率很大程度上决定于其最大功率点的跟踪。介绍了光伏电池电路模型,在Matlab/Simulink环境下对光伏电池的电气特性进行了仿真,分析了光伏电池最大功率点跟踪控制原理,利用玻尔兹曼函数自适应算法,设计了一基于三重Boost电路的最大功率点跟踪系统,并进行了仿真和实验研究;仿真和实验结果证明所设计的方法是可行的。

The efficiency of photovoltaic system largely depends on the maximum power point tracking （MPPT）. Photovoltaic battery model was designed. PV batteries electrical characteristic curves were set up under Matlab/Simulink. The basic principles of MPPT were analyzed. A MPPT system was designed with a main-circuit based on triple-boost. Through simulation and experiment, it is proved that the adaptive algorithm based on Boltzmann function and triple based Boost circuit for tracking the MPPT of photovoltaic system is feasible.