基于响应面方法的风力机叶片优化设计研究  

OPTIMIZING DESIGN RESEARCH OF WIND TURBINE BLADE BASED ON RESPONSE SURFACE METHODOLOGY

作　　者：邓磊[1] 乔志德[1] 杨旭东[1] 

机构地区：[1]西北工业大学翼型叶栅空气动力学国家级重点实验室,西安710072

出　　处：《太阳能学报》2012年第6期1015-1022,共8页Acta Energiae Solaris Sinica

摘　　要：基于响应面(RSM)优化设计方法进行了水平轴风力机(HAWT)叶片的多目标优化设计研究。风力机气动性能预测使用基于动量叶素(BEM)理论的性能分析和反设计程序PROPID51。设计目标为功率系数和年发电量的最大化,设计变量为叶片径向站位上的弦长和扭转角分布。响应面模型使用不含二阶交叉项的二阶多项式,可在保证模型精度的同时大大减小计算花费;构造模型时试验点的选择满足D-优化准则;使用统一目标函数法将多个设计目标统一到一个目标函数中。以某1.5MW变距型风力机叶片为例,径向使用新设计的WA-族高性能风力机专用翼型,进行叶片多目标多约束优化设计研究;分析统一目标函数中权值分配对设计结果的影响,并分别使用CFD计算的翼型气动数据和风洞测量气动数据作为输入进行设计,分析两种数据对设计结果的影响及叶片前缘污染对风力机气动性能的影响。A multi-objective optimization d on Response Surface Methodology （RSM） esign of horizontal axial wind turbine （HAWT） blades was studied based optimization design. The aerodynamic performance of wind turbine was predicted by the code of PROPID51 based on blade-element momentum （BEM） method. The design goal was to maximize the power coefficient and annual energy production; the design variables were the chord length on the blade radial stations and torsion angle distribution. The quadratic polynomials without the second-order cross items were employed for constructing RS models to ensure model accuracy and reduce the computational cost. The set of candidate design points was selected to satisfy D-optimality. Multi-design goals were unified into a single objective function using unified objective function method. The multi-objective and multi-constraint optimal design was performed to a 1.5MW pitch-regulated HAWT, and the new-designed WA-series airfoils for HAWT are used. The effects of the weight factor was made; CFD calculated and wind tunnel measured aerodynamic data of the airfoils were used as design data to analyze the effect on design results.

关 键 词：风力机叶片 响应面方法 优化设计 WA-族翼型 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]