200kW水平轴风力机叶片气动外形设计研究
发布时间：2018-11-17 15:42
【摘要】：水平轴风力发电机组是风能利用的主要形式之一。在整个风电机组运行中,叶片直接影响风能的转换效率,影响机组的年发电量,是风能利用的重要一环。同时,叶片是机组中的重要部件,叶片的合理设计,关系到风电组的正常稳定运行,直接影响风电场的投资收益。本文以设计容量200 kW的水平轴式风力发电机组的叶片为研究对象,研究了叶片的基础气动分析理论,包括一维动量理论,贝茨极限,叶片微元理论等。同时深入学习了叶片气动外形的两种设计方法：简化设计方法和葛劳渥(Glauert)方法。基于计算流体力学软件Fluent对设计叶片所选的截面翼型进行了二维气动数值计算理论模拟,对截面翼型的流场进行了分析,得到了翼型的气动特性参数。将理论计算数据与资料数据进行了对比,数据基本吻合,验证了二维翼型气动性能数值模拟的可靠性,为后续的设计提供了依据。对200 kW的风力机叶片的气动外形基于葛劳渥(Glauert)方法进行了设计,确定了叶片气动外形的主要参数,并对部分参数进行了优化。研究了风力机叶片三维实体的建模方法,同时基于solidworks软件完成了叶片的三维实体模型的建立。最后,对本文设计的容量为200 kW的风电机组叶片,使用专业设计软件bladed,进行了风力机叶片的气动性能预测分析,包括风能利用系数、机组的风功率曲线两方面的内容,结果表明,200kW风力机叶片的气动外形设计达到了设计的要求。
[Abstract]:Horizontal axis wind turbine is one of the main forms of wind energy utilization. In the whole operation of wind turbine, the blade directly affects the conversion efficiency of wind energy and the annual power generation of the unit, which is an important part of the utilization of wind energy. At the same time, the blade is an important part in the unit. The reasonable design of the blade is related to the normal and stable operation of the wind power unit and directly affects the investment income of the wind farm. In this paper, the blade of horizontal axis wind turbine with design capacity of 200 kW is taken as the research object, and the basic aerodynamic analysis theory of blade is studied, including one-dimensional momentum theory, Bates limit, blade micro-element theory and so on. At the same time, two design methods of blade aerodynamic profile are studied: simplified design method and (Glauert) method. Based on the computational fluid dynamics software Fluent, the two-dimensional aerodynamic numerical simulation of the section airfoil selected by the design blade is carried out. The flow field of the section airfoil is analyzed, and the aerodynamic characteristic parameters of the airfoil are obtained. The theoretical calculation data are compared with the data and the data are in good agreement with each other, which verifies the reliability of the numerical simulation of the aerodynamic performance of the two-dimensional airfoil and provides the basis for the subsequent design. The aerodynamic shape of a 200 kW wind turbine blade is designed based on the (Glauert) method. The main parameters of the blade are determined and some of the parameters are optimized. The 3D solid modeling method of wind turbine blade is studied, and the 3D solid model of wind turbine blade is built based on solidworks software. Finally, the aerodynamic performance prediction and analysis of the wind turbine blade with capacity of 200 kW is carried out by using the professional design software bladed, including the wind energy utilization coefficient and the wind power curve of the unit. The results show that the aerodynamic shape design of 200kW wind turbine blade meets the design requirements.
【学位授予单位】：内蒙古农业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM315
本文编号：2338336
[Abstract]:Horizontal axis wind turbine is one of the main forms of wind energy utilization. In the whole operation of wind turbine, the blade directly affects the conversion efficiency of wind energy and the annual power generation of the unit, which is an important part of the utilization of wind energy. At the same time, the blade is an important part in the unit. The reasonable design of the blade is related to the normal and stable operation of the wind power unit and directly affects the investment income of the wind farm. In this paper, the blade of horizontal axis wind turbine with design capacity of 200 kW is taken as the research object, and the basic aerodynamic analysis theory of blade is studied, including one-dimensional momentum theory, Bates limit, blade micro-element theory and so on. At the same time, two design methods of blade aerodynamic profile are studied: simplified design method and (Glauert) method. Based on the computational fluid dynamics software Fluent, the two-dimensional aerodynamic numerical simulation of the section airfoil selected by the design blade is carried out. The flow field of the section airfoil is analyzed, and the aerodynamic characteristic parameters of the airfoil are obtained. The theoretical calculation data are compared with the data and the data are in good agreement with each other, which verifies the reliability of the numerical simulation of the aerodynamic performance of the two-dimensional airfoil and provides the basis for the subsequent design. The aerodynamic shape of a 200 kW wind turbine blade is designed based on the (Glauert) method. The main parameters of the blade are determined and some of the parameters are optimized. The 3D solid modeling method of wind turbine blade is studied, and the 3D solid model of wind turbine blade is built based on solidworks software. Finally, the aerodynamic performance prediction and analysis of the wind turbine blade with capacity of 200 kW is carried out by using the professional design software bladed, including the wind energy utilization coefficient and the wind power curve of the unit. The results show that the aerodynamic shape design of 200kW wind turbine blade meets the design requirements.
【学位授予单位】：内蒙古农业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM315
【参考文献】
相关期刊论文 前1条
1 谭忠富;鞠立伟;;中国风电发展综述:历史、现状、趋势及政策[J];华北电力大学学报(社会科学版);2013年02期
相关博士学位论文 前2条
1 沈昕;水平轴风力机气动性能预测及优化设计[D];上海交通大学;2014年
2 黄宸武;基于相似理论风力机气动性能预测研究[D];中国科学院研究生院（工程热物理研究所）;2012年
，本文编号：2338336
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