基于变步长扰动观测法的光伏发电最大功率点控制策略研究

Maximum Power Point Tracking of Photovoltaic Power Generation Based on Variable Step Size Perturbation and Observation Method

本文基于扰动观测分析最大功率点追踪算法的优缺点,提出了一种基于变步长的光伏MPPT控制方法,并进行仿真研究。结论如下:改进的扰动观测法可以减少稳定时间,增加稳定精度,减弱稳定扰动,具有更好的输出特性,能对环境变化快速响应,并且具有良好的跟踪特性。

In this paper,based on the disturbance observation and analysis of the advantages and disadvantages of MPPT algorithm,a photovoltaic MPPT control method based on variable step size was proposed and simulated.The conclusion is as follows:the improved disturbance observation method can reduce the stability time,increase the sta bility accuracy,weaken the stability disturbance,have better output characteristics,can respond to the environmental change quickly,and have good tracking characteristics.