太阳能供电系统最大功率点的方法实现  

Method for Realing the Maximum Power Point of Solar Power System

作　　者：熊永红 周焕银[1,2] 刘树博 Xiong Yong-hong;Zhou Huan-yin;Liu Shu-bo(School of Mechanical and Electronic Engineering,East China University of Technology,Jiangxi Nanchang 330013;Jiangxi New Energy Technologyand Equipment Engineering Technology Research Center,Jiangxi Nanchang 330013)

机构地区：[1]东华理工大学机械与电子工程学院,江西南昌330013 [2]江西省新能源工艺与装备工程技术研究中心,江西南昌330013

出　　处：《电子质量》2018年第5期64-69,共6页Electronics Quality

基　　金：江西省新能源工艺及装备工程技术中心开放基金项目(JXNE2016_13)

摘　　要：太阳能是一种新能源,在大自然取之不仅,用之不竭,但是利用率不高,转换效率也很低下。为了解决这个问题,该文对光伏电池组的工作原理及伏安特型曲线和最大功率点的寻踪做了详细研究,并用MATLAB/Simulink功能对恒电压跟踪法和扰动观察法相结合的算法建了仿真模型,分析了在不同温度和日照强度下的太阳能输出特性。仿真结果表明,这两种控制策略各有各的优缺点,同时也证明了改进的MPPT控制算法提高了系统的快速跟踪并且减小了稳态时的振荡幅度。Solar energy is a new energy source that is inexhaustible in nature.but its utilization rate is not high and its conversion effciency is very low.In order to solve this problem,this paper studied the working principle of photovoltaic cells and volt-ampere curve and tracking of maximum power point in detail.In addition,we used MATLAB＇s Simulink function to build a simulation model for the combination of constant voltage tracking method and disturbance observation method and analyzed the solar output characteristics under different temperature and sunshine intensity.Simulation results show that the two control strategies have their own advantages and disadvantages,and also prove that the improved MPPT control algorithm improves the system＇s fast tracking and reduces the oscillation amplitude in steady state.

关 键 词：光伏发电 MATLAB/SIMULINK仿真 改进的扰动观察法 

分 类 号：TM914[电气工程—电力电子与电力传动]