毕业论文移动版

摘要：垂直轴风力发电机和水平轴风力发电机相比,具有起动风速低、风能利用率高等诸多优点和广阔的市场应用前景。文章介绍了H型垂直轴风力发电机的主要结构特点及其设计方法,对小型垂直轴风力发电机进行结构优化设计并应用于工业产品的设计作了阐述。采用多流管理论模型对风光能源复合发电装置项目中H型垂直轴风机参数进行优化设计,在多流管理论基础上建立模型并用Matlab软件进行计算、仿真。分析了H型垂直轴风力发电机叶片在旋转过程中不同叶尖速比时攻角的变化情况,和叶尖速比、密实度对风力发电机风能利用系数的影响。通过各个参数大小的变化对功率系数的影响进行比较,得出最大功率时所对应的风机最佳参数。71921

关键词：H型；垂直轴；风轮设计；气动性能；

Vertical shaft wind design

Abstract: Compared with the horizontal wind turbine, the vertical axis wind turbine has many advantages such as low starting wind speed and high wind energy utilization rate and wide application prospect。 This paper introduces the main structural characteristics and design method of H - type vertical axis wind power generator, and expatiates on the design of small vertical shaft wind power generator and its application in industrial product design。The multi - flow tube model is used to optimize the parameters of the H - type vertical shaft fan in the wind energy composite power plant project。 The model is established on the basis of the multi - stream theory and calculated and simulated by Matlab software。 The influence of the ratio of the tip speed ratio and the density on the wind energy utilization coefficient of the wind turbine is analyzed when the blade speed ratio of the H - type vertical axis wind turbine blade is different in the rotation process。 Through the changes in the size of the parameters of the power coefficient of the impact of comparison, the maximum power corresponding to the fan when the best parameters。

Key words: H type; vertical axis; wind wheel design; aerodynamic performance;

目录

 1绪论 3

1。1开展风力发电研究的背景 3

1。2风力发电机简介 3

1。3国内外风电发展现状 5

1。4垂直轴风力发电机气动性能分析理论研究进展 7

2风力发电机的基本理论 8

2。1技术原理 8

2。2风力发电机的基本理论 8

2。2。1贝茨理论 8

2。3垂直轴风力发电机空气动力学设计理论 10

3  H型垂直轴风力发电机风轮初步设计 12

3。1叶片翼型选取 12

3。2风轮的设计特点 14

3。3风轮参数的设计方法 14

3。3。1计算风轮的扫风面积 15

3。3。2风轮叶片数和弦长及实度σ的确定 15

3。4风力发电机风轮设计计算 16

3。5 H型直叶片垂直轴风力发电机双向多流管理论模型 16

4 H型垂直轴风力发电机风轮气动性能分析 17

4。1风轮的高径比 18

4。2风轮实度 19 (责任编辑：qin)