基于改进占空比扰动法的光伏系统的研究

摘要

Maximum power point tracking technology is one of the key technologies for photovoltaic system. Through the analysis of the classic maximum power point tracking method, and the comparison of the traditional duty ratio perturba tion method, a kind of improved duty ratio perturbation method is used in this paper . This method can adjust step length online, solve the "misjudgment" problems appear in traditional methods, and the effectiveness of the method is verified through the simulation results.%最大功率跟踪技术是光伏发电系统的关键技术之一.通过对经典最大功率跟踪方法的分析,以及传统占空比扰动法的比较,采用一种改进的占空比扰动法,该方法能在线调整步长,解决传统方法出现的“误判”问题,并通过仿真实验验证该方法的有效性.