垂直轴风力机非对称翼型叶片变攻角方法  

The method for wind turbine to vary angle of attack of asymmetric airfoil blade

作　　者：张立军[1] 刘华 赵昕辉 张明明 李乐乐 

机构地区：[1]中国石油大学(华东)机电工程学院,山东青岛266580 [2]青岛东华士智能装备有限公司,山东青岛266580

出　　处：《可再生能源》2016年第2期232-237,共6页Renewable Energy Resources

基　　金：中央高校基本科研业务费专项资金项目(14CX02069A;12CX02009A);青岛市黄岛区科技计划项目(2014-1-47;2014-1-20)

摘　　要：分析了H型垂直轴风力机非对称翼型叶片在一定雷诺数下的升力系数和阻力系数的变化,给出了叶片攻角的合理变化范围。通过分析风轮旋转一周叶片攻角的变化,给出了不同叶尖速比下叶片攻角随其方位角变化的规律。利用Origin软件计算出上下风区叶片的安装角与攻角的对应关系,并确定合适的安装角。分析表明,通过改变风轮叶片的安装角来调整叶片的攻角,能使风力机始终保持较高的功率输出。In this paper, the change of lift and drag coefficient of an asymmetric airfoil blade is analyzed in a certain Reynolds number, and a reasonable range of angle of attack of the blade is also obtained. By analyzing the change of attack angle during a circle of rotation, a change regulation of blade attack angle with the azimuth angle is obtained in different tip speed ratio. The Origin software is used to calculate an appropriate installation angle by analyzing the correspondence between the blade installation angle and the attack angle. The analysis results show that the wind turbine can be kept in a high power output range by adjusting the blade attack angle according to the change of the installation angle.

关 键 词：非对称翼型叶片 变攻角 安装角 ORIGIN软件 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]