微小型风力发电机叶片的建模与仿真分析

Modeling and Simulation Analysis of Micro Wind Turbine Blades

以功率为2 kW的小型风力发电机叶片为模拟对象,在确定额定功率后,利用公式计算叶片直径,确定叶尖速比,进行翼型种类的选取,并建立了叶片的三维模型。然后使用CAE软件对叶片进行流场模拟,完成对叶片的流场分析,得到在额定风速下叶片的速度云图、叶片迎风面与背风面的压力云图,为风力发电机叶片的结构设计与进一步的分析提供了一定的参考。

Taking a small wind turbine blade with a power of 2 kW as the simulation object,after determining the rated power,use the formula to calculate the diameter of the blade,determine the tip speed ratio,select the type of airfoil,and establish a three-dimensional model of the blade.Then use CAE software to simulate the flow field of the blade to complete the flow field analysis of the blade,and obtain the speed cloud picture of the blade under the rated wind speed,and the pressure cloud picture of the windward and leeward sides of the blade.This study can provide a certain reference for the structural design and further analysis of wind turbine blades.