FAST风速观测器的设计与实验验证

摘要风速是风力发电机运行和控制的一个重要参量，准确估计实时变化的风速十分重要。本文基于牛拉法的数学原理设计了一种风速观测器，其通过采集风轮机运行中实时的运行状态数据并通过已经建立的风轮机的数学模型来迭代估计出一个叶尖速比的近似值，再由它与风速的对应关系达到估计风速的目的。最后，将设计的风速观测器分别在FAST及风力机模拟器中进行了仿真实现和实验校验。综合这两个结果可以得出，所设计的风速观测器具有良好的风速估计性能，符合预期目标。87639

毕业论文关键词风速观测器牛拉法 FAST 风力机模拟器

毕业设计说明书外文摘要

Title Design and experimental verification of a wind speed observer

Abstract Wind speed is an important parameter in the operation and control of wind power generator。It is very important to accurately estimate the real-time mutative wind speed。In this paper,a wind speed observer is designed based on the mathematical principles of the Newton-Raphson method。It’s through the acquisition of real-time running state data in wind turbine operating and the mathematical model of wind turbine which has been established to iteratively estimate the approximate value of tip speed ratio,then it’s achieved to estimate the wind speed by the corresponding relationship between it and the wind speed。 Finally,the designed wind speed observer is simulated and given a experimental verificationin the FAST and the wind turbine simulator。Considering the comprehensive experimental results of the two experiments,the designed observer has a good performance in estimating wind speed, and can meet the expected goal。源-于,优+尔^论=文.网wwW.yOueRw.com 原文+QQ752.018766

Keywords Mathematical model of wind turbine control strategy Newton-Raphson method experimental verification

1 绪论 1

1。1 研究背景及意义 1

1。2 风速观测器研究现状 1

1。3 本文研究的主要内容 2

2 风力发电机模型的搭建 3

2。1 气弹耦合模型 3

2。2 传动系统模型 3

2。3 基于Simulink的风力机模型搭建 6

3 应用于风力机MPPT控制的风速观测器 8

3。1 最大功率点跟踪控制 8

3。2 基于Simulink的风力机控制模块的搭建 17

3。3 基于牛拉法的风速观测器的设计 18

3。4 基于Simulink的风速观测器模块的搭建 21

3。5 仿真模块的整体说明和运行说明 22

4 风速观测器的仿真实现与实验验证 24

4。1 风速观测器的仿真结果 24

4。2 风速观测器的仿真结果分析 27

4。3 风速观测器性能的实验验证 27

4。4 风速观测器验证实验的结果与分析 28

结论 FAST风速观测器的设计与实验验证:http://www.youerw.com/zidonghua/lunwen_141532.html