光伏电池最大功率点跟踪的仿真研究  

Simulation of Photovoltaic Array Maximum Power Point Tracking

作　　者：储海兵 CHU Hai-bin(Kunshan Power Supply Company, Jiangsu 314100)

机构地区：[1]江苏昆山供电公司,昆山314100

出　　处：《现代计算机》2019年第3期29-32,共4页Modern Computer

摘　　要：为了提高光伏发电系统的发电效率,在光伏发电最大功率跟踪过程中,针对传统的固定步长扰动观察法在跟踪速度与跟踪精度方面存在的问题,提出变步长变占空比扰动观察法。基于此,分析扰动观察法、变步长变占空比扰动观察法的跟踪原理,并建立MATLAB仿真模型。通过在MATLAB/Simulink中建立仿真模型,对MATLAB仿真结果进行比较分析,进一步说明变步长变占空比扰动观察法具有更加良好的动态性能,能够较好地改善跟踪速度与跟踪精度。In order to improve the efficiency of photovoltaic power generation system, puts forward the variable step variable duty cycle perturbation and observation method(P&O), which solves the disadvantages of the traditional fixed step P&O in tracking speed and tracking accuracy in the process of MPPT. Based on it, analyzes the principle of traditional fixed step P&O and variable step variable duty cycle P&O, and establishes some simulation models in MATLAB. By setting simulation in MATLAB/Simulink and comparing with the results of simulation, further explains that variable step variable duty cycle P&O ensures better dynamic performance and can improved tracking speed and tracking accuracy better.

关 键 词：扰动观察法 变步长变占空比扰动观察法 MATLAB/SIMULINK 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TM615