大型变速变桨距风机风轮的建模与仿真  

MODELING AND SIMULATION OF WIND ROTOR FOR VARIABLE SPEED AND PITCH WIND TURBINE

作　　者：宁祎[1] 李红刚[1] 李富生 陶学军 周伟 

机构地区：[1]河南工业大学电气工程学院,郑州450007 [2]许继集团,许昌461000

出　　处：《太阳能学报》2012年第6期1010-1014,共5页Acta Energiae Solaris Sinica

摘　　要：针对风机实验建模的复杂性、得到结果的长期性和结论应用的局限性,提出在叶素-动量理论基础上利用Schmitz理论建立变桨风机气动性能模型的方案。该模型考虑了叶尖损失、轮毂损失、翼型厚度和宽度的影响,同时也考虑了风机在启动时风的实度和空载时的圆盘效应;考虑了在风轮结构参数的基础上坐标变换后偏航和风剪切的影响,并根据不同叶素产生转矩不同的现象,应用权系数分配叶素的方法,解决了在有限叶素数内的计算精度问题。利用Simulink仿真工具和许继集团提供的2MW风机参数,验证了风机仿真模型的正确性,得出气动模型能快速简便地仿真大多类型风机的结论。Because of the complexity and long-term of modeling for wind turbine experimentally, the momentumblade element theory, aerodynamic model of variable pitch wine turbine was established using Schmitz theory by considering the effect of tip losses, hub losses, thickness and width of airfoil and furthermore, the effect of rotor solidity when the turbine start and disc effect when the turbine idles. The effect of yawing and wind shear on rotor was modeled by changing the coordinates on the basis of the parameter of turbine structure. According to the different torque generated from different blade element, different weight factors were distributed by different blade elements to solve the accuracy problem within limited blade-elements. Simulink rotor model was established by using 2MW wind turbine parameter provided by XJ Group Corporation. Analysis theory can rapidly and easily simulate any type of wind rotors by simulating operation curves during the rated oower and below rated wind sneed.

关 键 词：变桨 建模 损失 权系数 SIMULINK 

分 类 号：TK8[动力工程及工程热物理—流体机械及工程]