基于片条理论的伞形风力机叶片参数优化  

Optimization of Umbrella Wind Turbine Blade Parameters Based on Strip Theory

作　　者：包道日娜[1] 刘东 刘旭江 刘嘉文 BAO Dao-ri-na;LIU Dong;LIU Xu-jiang;LIU Jia-wen(Inner Mongolia University of Technology,School of Energy and Power Engineering,Inner Mongolia Hohhot 010051,China)

机构地区：[1]内蒙古工业大学能源与动力工程学院,内蒙古呼和浩特010051

出　　处：《机械设计与制造》2023年第4期45-50,共6页Machinery Design & Manufacture

基　　金：新型分布式伞形风力发电机成果转化及中试(CGZH2018131)。

摘　　要：针对伞形风力机输出特性方面的不足,结合伞形风力机结构的特点,提出收缩角影响因子,并以片条理论为基础构建数学模型,利用MATLAB软件在全年风速为8m/s的风场下以年发电量最大为优化目标,对伞形风力机叶片的弦长、扭角参数进行全局优化。为保证功率计算的准确性,通过CFD的大涡模拟进行功率计算,并将优化结果与原叶片进行比较。结果表明:该方法设计的叶片具有良好的输出特性,在低风速区优化效果显著。在年发电量上优势明显,较原叶片年发电量增加13%。In view of the shortcomings of the output characteristics of umbrella wind turbines,combined with the characteristics of umbrella wind turbine structures,the shrinkage angle influencing factors are proposed,and a mathematical model is constructed based on the strip theory.Using MATLAB software,the annual wind speed is 8m/s under the wind farm,the maximum annual power generation is the optimization goal for global optimization.In order to ensure the accuracy of the power calculation,the power estimation is carried out by the large eddy simulation of CFD,and the optimization result is compared with the original blade.The results show that the blades designed by this method have good output characteristics,and the optimization effect is significant in the low wind speed area.It has obvious advantages in annual power generation,which is an increase of 13%compared with the original blade.

关 键 词：片条理论 伞形风力机 叶片优化 年发电量 CFD 

分 类 号：TH16[机械工程—机械制造及自动化]