聚风罩对垂直轴风力发电机气动特性影响的数值模拟研究  

Numerical simulation study on influence of wind turbine hood on aerodynamic characteristics of vertical axis wind turbines

作　　者：熊烈 杨凯 黄晓宏[1,2] 陈双印 李黎[1,2] Xiong Lie;Yang Kai;Huang Xiaohong;Chen Shuangyin;Li Li(Institute of New Energy,Wuhan,Wuhan 430070,China;Huazhong University of Science and Technology,Wuhan 430070,China)

机构地区：[1]武汉新能源研究院,湖北武汉430070 [2]华中科技大学,湖北武汉430070

出　　处：《能源与环保》2023年第3期233-239,245,共8页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：湖北省产业技术研究院前资助项目(2020DEB013)。

摘　　要：以H型风力发电机为研究对象,在常用的风力发电机叶片中选择一款高性能的叶片,再在该叶片的基础上设计直板型聚风罩,重点以聚风罩的导流板倾斜角为研究对象。根据垂直轴风力发电机的理论基础,再以ANSYS Fluent为分析工具,对风机加装聚风罩前后进行CFD仿真模拟,分别得到不同工况下风机的转矩和功率等性能参数,总结出风力发电机的运行规律,得到风力发电机聚风罩挡板的最佳倾斜角为-5°。并对不同风向下风力发电机加装最佳倾角挡板后的气动性能进行CFD仿真模拟,不同风向下风力发电机输出功率提高了18.5%~35.3%。该研究对风力发电机聚风罩的设计有一定的参考意义。H-type wind turbine is taken as the research object.Selecting a high performance blade in commonly used wind turbines blades,on the basis of the blade,an omni-direction wind gathering cover is designed.The slant angle of the guide plate of the wind gathering cover is the key research object.Firstly,the theoretical basis of vertical axis wind turbine is summarized,and then ANSYS Fluent is used as the analysis tool,CFD simulation was carried out for the wind turbine before and after installation of the wind gathering cover,the performance parameters such as torque and power of the wind turbine under different working conditions are obtained respectively,summarize the operation law of wind turbine,it is concluded that the best inclination angle of the wind turbine wind gathering cover is-5°.CFD simulation was carried out for the wind turbine under different wind direction after installation of the optimal slant angle of the wind gathering cover.The output power of wind turbine increased by 18.5%~35.3%under different wind direction.The research has a certain reference significance to the design of wind gathering cover.

关 键 词：H型风力发电机 气动特性 聚风罩 倾斜角 数值模拟 

分 类 号：TH113[机械工程—机械设计及理论]