双叶片立轴风力机及其性能分析  

A Vertical Axis Wind Turbine with Double-blades and Its Performance Analysis

作　　者：张玉华[1] 邱支振[1] 高根生[1] 

机构地区：[1]安徽工业大学机械工程学院,安徽马鞍山243002

出　　处：《机械传动》2010年第3期4-7,17,共5页Journal of Mechanical Transmission

基　　金：安徽省自然科学基金(070414155);安徽省教育厅自然科学基金资助项目(KJ2007A107ZC)

摘　　要：提出了一种新型的双叶片风力机,建立了该风力机的计算模型,基于对叶片的运动学和空气动力的分析,导出了其性能参数的计算方法。结合设计实例,对该风力机的性能进行了仿真分析,结果表明:双叶片风力机在一定的风速和负载下能稳定地运行,最大风能利用率随输出转速呈抛物线规律变化,存在使风能利用率最大的最佳输出转速。A new type of wind turbine - double-blade wind turbine is presented and analytical expressions for computing its performance parameters are derived by means of kinematic and aerodynamic analysis of the blades. An example is given for comparing the performance parameters of a double-blade wind turbine with a single-blade wind turbine＇s in the same mechanism size using the derived equations. The results from the example demonstrate that the former can run steadily under constant wind and load because of its more stable output torques, and the wind power efficiency changes in form of a parabolic curve with the rotary speed of the wind turbine and becomes maximum at a special rotational velocity called optimum output speed.

关 键 词：立轴风力 机双叶片风力机 建模 仿真分析 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]