摘要
传统光伏发电系统中最大功率跟踪算法难以同时兼顾跟踪速度和跟踪精度,对此提出一种基于变占空比的最大功率跟踪控制算法。通过MATLAB/Simulink平台进行光伏发电最大功率追踪仿真验证,运用自适应占空比扰动技术实现对最大功率的实时跟踪并不断进行动态调整使输出功率保持最大,同时与常规扰动法进行对比。仿真结果显示,变占空比的光伏发电最大功率跟踪算法可提升能量转化效率。
In view of the difficulty in tracking speed and accuracy of traditional PV maximum power tracking algorithm,a maximum power tracking control algorithm based on variable duty cycle is proposed.The maximum power tracking simulation of photovoltaic power generation is verified by MATLAB/Simulink platform.The adaptive duty cycle disturbance technology is used to realize the real-time tracking of the maximum power,and the continuous dynamic adjustment is made to keep the output power at the maximum.At the same time,it is compared with the conventional disturbance method.The simulation results show that the maximum power tracking algorithm of photovoltaic power generation with variable duty cycle can improve the energy conversion efficiency.
作者
张自雷
赵旭
杨培宏
吴振奎
彭亮
ZHANG Zilei;ZHAO Xu;YANG Peihong;WU Zhengkui;PENG Liang(Inner Mongolia University of Science and Technology,School of Information Engineering,Baotou 014010,China)
出处
《电工技术》
2021年第22期44-46,49,共4页
Electric Engineering
基金
内蒙古自治区高等学校科学技术研究项目(编号NJZY21379)
内蒙古自治区科技攻关项目(编号2020GG0156)。
关键词
光伏电池
自适应占空比
最大功率追踪
仿真
photovoltaic cells
adaptive duty cycle
maximum power tracking
simulation
