风力机变桨力矩建模分析与估计  

Modeling and Estimation of Variable-Pitch Moment for Wind Turbine

作　　者：李红刚[1,2] 李富生 陶学军 

机构地区：[1]河南工业大学,河南郑州450007 [2]许继集团,河南许昌461000

出　　处：《机电工程技术》2011年第7期76-78,171,共3页Mechanical & Electrical Engineering Technology

摘　　要：针对变桨距风电机组桨叶不断增大的发展趋势,经济的变桨电机选型越来越依靠理论支撑的问题,提出了通过空气动力学仿真分析,确定变桨电机力矩范围的方法。首先介绍了变桨机构的运动方程,然后把变桨力矩分解为离心力矩、气动力矩、俯仰力矩、空气加速度的惯性力矩及阻力距、摩擦力矩和重力矩并进行单独分析,最后结合1.5MW风电机组利用matlab仿真出其桨叶总力矩输出特性曲线,验证了其模型的正确性,得出通过仿真确定变桨电机力矩范围的有效方法。For the growing trend of variable pitch wind turbine blades and economic motor selection depend on theories,this paper puts forward a method to solve the problem that is to determine the torque range of motor by simulation and analysis of aerodynamics.Firstly,the motion equation of pitch system is introduced;secondly,separate analysis of centrifugal moment,aerodynamic moment,resetting moment,inertia and resistance moment caused by the air acceleration,friction moment and gravity moment.Lastly,Matlab simulation of blade torque output characteristic curves based on 1.5MW wind turbine,which proved the correctness of the model and obtained an effective method of determining the torque range by means of simulation.

关 键 词：变桨力矩 建模 MATLAB仿真 电机选型 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]