摘要随着全球经济的快速发展,各国对能源的需求量与日俱增。为了满足经济的快速增长,新能源技术也被提到了一个新的高度,一直在新能源技术中处于领先地位的风力发电技术愈加受到人们的重视。而随着装机容量的不断增大,研发安全、可靠、高效率的大型风电机组具有重大的现实意义。
本文首先介绍了风力发电机组的基本结构形式和分类,接着从风电机空气动力学入手,引出风能利用系数,对变桨距风力发电机组的工作原理和运行状态进行了简单的介绍,并分析了变桨距控制的基本原理,简要介绍了变桨距控制方式,随后在Matlab/Simulink中建立风电机、机械传动装置、异步发电机的数学模型,通过设计的模糊控制器,建立统一变桨距控制系统,并得出仿真数据,最后根据仿真结果得出结论。66780
毕业论文关键词 风力发电机组 变桨距控制 模糊控制器
毕业设计说明书(论文)外文摘要
Title Study On Control Of Wind Turbine With Variable-Pitch
Abstract
With the development of the global economy,countries increasing demand of energy.In order to meet the rapid growth of the economy,the new energy technology has also been referred to a new height.As the leading of new energy technologies,wind turbine technology has been paid more attention.
With the installed capacity increasing,research safe,reliable and efficient large-scale wind turbine is of great practical significance.
This paper introduces the basic structure and classification of wind turbine ,and then start from the wind turbine aerodynamics,leads wind energy utilization coefficient,make a simple presentation for variable pitch wind turbine works and operational status,and analyzes the basic principle of pitch control,outlines pitch control method ,create a wind turbine,mechanical transmission device ,asynchronous generator model
in the Matlab/Simulink ,then design a fuzzy controller to establish a unified pitch control system,the simulation data obtained, at last,draw the conclusion based on the simulation results.
Keywords Wind turbine pitch control fuzzy controller
目 次
1 绪论 1
1.1 课题的背景和研究意义 1
1.2.1 国内风电发展现状 2
1.2.2 国外风电发展现状 2
1.3 风电技术现状即发展趋势 3
1.4 论文的主要内容及安排 3
2 变桨距风力发电机组的结构与工作原理 5
2.1 风力发电机组的基本结构形式与分类 5
2.2 风力机空气动力学原理 6
2.3 风能利用系数 8
2.4 变桨距风力发电机组的工作原理和运行状态 9
2.5 风电机组变桨距控制原理分析 11
2.6 风电机组变桨距控制方式 13
2.7 本章小结 13
3 变桨距风电机组模型的建立与仿真 14
3.1 变桨距风电机组模型的建立 14
3.1.1 风轮模型