离网小型风力发电系统的建模与仿真研究

Research on the Modeling and Simulation of the Off-Grid Small Scale Wind Power Generation System

进入21世纪后,人们对能源的需求越来越多,然而大量地开采和利用以煤、石油、天然气为主的一次能源不仅污染空气而且随着时间的推移它们会越来越少直到消耗完毕。能源又是人们赖以生存的基础,为了生存人们必须加大对新能源的研究。风能因为其清洁无污染而受到人们的青睐。研究小型离网风力发电系统的各个组成部分,并对其原理进行了分析。利用风力机和发电机的数学模型在MATLAB 2014b/Simulink中,建立了小型离网风力发电系统的仿真模型。仿真的结果表明:离网小型风力发电系统能够在恒定风速的情况下持续稳定地运行,并能够为负载提供稳定的电压供其正常地工作。

After entering the 21st century,people's demand for energy is increasing,but the large-scale exploitation and utilization of primary energy sources dominated by coal,oil and natural gas not only pollutes the air,but they also become less and less over time until they are exhausted.Energy is the basis for people's survival,and people have increased research on new energy to survive.Wind energy is favored for its cleanliness and pollution-free.This paper mainly studies the various components of the small-scale off-grid wind power generation system,analyzes its principle,and establishes the simulation model of the small-scale off-grid wind power generation system by using the mathematical model of wind turbines and generators in Matlab2014b/simulink.The simulation results show that the off-grid small-scale wind power generation system can continue to operate stably at constant wind speed and can improve the stable voltage for the load for its normal operation.