【摘要】 在分析光伏电池数学模型和输出特性的基础上,结合Boost电路,针对最大功率点跟踪(MPPT)进行了研究,提出一种新型变步长占空比直接控制方法,该方法有跟踪和稳态两种工作模式,根据环境的变化切换工作模式。利用Matlab/Simulink仿真软件进行了仿真研究,与传统控制方法的对比结果表明,提出的控制方法具有跟踪速度快、控制精度高,稳态运行无波动和易于实现等优点,同时降低了系统的经济成本。实验结果也表明了该方法的可行性。更多还原

【Abstract】 Based on the analysis of the mathematical model and the output characteristics of the photovoltaic cells,combined with Boost circuit,a new method of variable step directly duty ratio controlling method was proposed aim at the Maximum Power Point Tracking(MPPT).This method has two modes of tracking and steady-state,can change mode according to work environmental.This method was simulated by Matlab/Simulink.Compared with other classical control methods,the new method has advantages of fast tracking,high precision,steady-state operating without fluctuation,easy to implement,and reduced the economic cost of the system.The result of experiment shows feasibility of the method also.更多还原