1mw风力机叶片气动外形优化设计_精品.docVIP

1MW风力机叶片气动外形优化设计 摘 要 随着化学燃料的日益枯竭和人类对全球环境的恶化倍加关注，各国积极开发各种可再生能源。风能是可再生能源中发展最快、最具有大规模开发和商业化发展前景的可再生能源。因此，世界各国都积极发展风力发电。 风力机的主要组成部分是叶片。风力机叶片的气动外形决定其转换风能的效率，因此在风力机的设计中，叶片气动外形的优化设计具有重要的地位。设计优良的叶片是使风力机获得最大风能利用系数和良好经济效益的基础。 本课题基于Glauert模型和Wilson模型进行1MW风力机叶片气动外形优化设计；借助MATLAB语言计算出叶片的弦长、扭角等结构参数，并将两种模型进行比较分析；利用excel进行数值计算，得出叶片三维空间实际坐标；通过SolidWorks绘图软件进行三维实体建模；最后利用MATLAB语言进行优化设计程序开发，开发出较通用的叶片气动优化设计程序。 关键词：The Blade Aerodynamic Optimum Design Of The 1MW Wind Turbine Abstract With exhaustion of chemical fuel and people’s increasing attention toward global environmental deterioration, countries all around the world are enthusiastic in the exploration of renewable energy. Wind power, however, is the one kind of renewable energy with rapid development, large-scaled exploitation and brilliant foreground. Hence, countries endeavor to boost the development of wind power. The most important part of wind turbine is the blade. Whilst in the design of wind turbine, blade is very significant since its shape determines its working efficiency. The perfection of blade laid a foundation of the acquisition of more wind power and better economic benefits. Based on Glauert Model and Wilson Model, this project is to optimize the blades’ design of wind turbine 1MW. MATLAB is used to calculate configuration parameters like chord length and torsion angle of the blades, with which a comparison and analysis of these two models will be progressed. In order to get blades’ three dimensional coordinates, excel is utilized in calculation. Besides, SolidWorks are in application in model building. Finally, MATLAB contributes again in the optimization of the design procedure to make it practical and simple. Keywords：ind Turbine; blade optimum design; pneumatic performance; 3D modeling; Application development 目 录 1. 绪 论 1 1.1 研究的背景和意义 1 1.2国内外研究现状及发展前景 1 1.2.1国外风力发电概况 1 1.2.2 国内研究概况及前景 2 1.3研究目标及论文的主要研究工作 2 1.3.1 论文研究目标 2 1.3.2 论文主要研究工作 3 2.风力机基础概念及理论 4 2.1风力机性能参数 4 2.1.1 风力机类型 4 2.1.2 风轮直径D 4 2.1.3 风轮叶片