基于遗传算法的占空比扰动法在MPPT中的应用研究  

Research on a maximum power point tracking with DRP based on genetic algorithm

作　　者：肖俊明[1] 王东云[1] 李燕斌[1,2] 焦凌云[1] 

机构地区：[1]中原工学院,河南郑州450007 [2]许继电气股份有限公司,河南许昌461000

出　　处：《电力系统保护与控制》2010年第15期43-46,共4页Power System Protection and Control

摘　　要：为了提高光伏电池的利用率,需对光伏电池的最大功率点进行快速准确的追踪控制。根据光伏电池的电气特性,建立了光伏阵列的数学模型。针对传统占空比扰动法的不足,提出了一种基于遗传算法的占空比扰动法,并在Matlab/simulink下进行了建模与仿真。仿真结果表明所提方法能够在外界环境变化时快速、准确地跟踪太阳能电池的最大功率点,使光伏系统具有良好的动态和稳态性能。It is necessary to track the maximum power point of solar cell array rapidly and accurately to improve the utilization of solar cell array.This paper establishes a mathematical model of photovoltaic array according to the electrical characteristics of solar cell array.Aiming at the lack of traditional duty ratio perturbation,a duty ratio perturbation based on genetic algorithm is proposed.This maximum power point tracking method is established and simulated with Matlab/Simulink.Simulation results show that the maximum power point tracking algorithm based on genetic duty ratio perturbation can track the maximum power point rapidly and accurately when the external environmental changes,and can improve the static and dynamic performance of photovoltaic power system.

关 键 词：遗传算法 占空比 扰动法 最大功率点跟踪 光伏发电系统 

分 类 号：TM914.4[电气工程—电力电子与电力传动]