水平轴风力机变桨载荷分析与计算  

Analysis and calculation of variable pitch load for horizontal axis wind turbine

作　　者：孔屹刚[1,2,3] 徐大林[1] 顾兆丹[1] 王志新[3] 陈建华[1] 

机构地区：[1]江苏自动化研究所,江苏连云港222006 [2]太原科技大学机电学院,山西太原030024 [3]上海交通大学电气工程系,上海200240

出　　处：《江苏大学学报（自然科学版）》2010年第6期635-639,共5页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(61074042);江苏省科技成果转化专项基金资助项目(BA2008072);江苏省科技支撑计划项目(BE2009092);中国博士后科学基金资助项目(20100470692)

摘　　要：针对风力机变桨载荷常规计算时忽略很多细节从而导致数值不精确的问题,文中以大型水平轴风力机为研究对象,通过数值计算软件Matlab/Simulink,在建立风电机组非线性模型基础上,对风力机桨叶外形参数和空气动力数据进行分析和计算,得到风力机桨叶轴向诱导因子、周向诱导因子、入流角、攻角、相对风速、桨距角等参数对应不同风速的值,最终根据这些参数,综合分析计算,得到了风力机变桨载荷的数值.计算结果为风力机变桨控制系统分析和设计提供了更为可靠的基础性数据.To solve the problem that inaccurate value is obtained due to neglect of details in conventional variable pitch load calculation,a horizontal axis wind turbine is taken as the investigation subject.The nonlinear model of wind power system is established and the blade geometry parameter and the aerodynamic data are calculated by using Matlab/Simulink.Some parameter values corresponding to different wind speed,such as axial induced factor,circumferential induced factor,relative wind speed,inflow angle,attack angle and pitch angle are calculated.In the end,the value of the variable pitch load is obtained according to the above data.The calculated results provide the reliable and fundamental data for the design of the variable pitch control system of the wind turbine.

关 键 词：风力机 变桨 空气动力 载荷 叶片 

分 类 号：TM315[电气工程—电机] TK83[动力工程及工程热物理—流体机械及工程]