变速风力机变桨距系统建模与仿真  

Modeling and simulation of adjustable pitch control of variable speed wind turbine system

作　　者：王贤立[1] 柴玉华[1] 

机构地区：[1]东北农业大学工程学院,黑龙江哈尔滨150030

出　　处：《可再生能源》2012年第9期37-40,共4页Renewable Energy Resources

基　　金：黑龙江省教育厅2012年度科学技术研究项目(12521039)

摘　　要：变速风力发电机组一般采用变桨距控制来稳定输出功率,但是桨距角的改变会引起攻角的改变,从而引起叶片气动性能的改变,所以在变桨距控制过程中,必须保证合适的攻角,以确保风力机具有良好的气动性能。采用统一变桨距控制方法,在matlab/simulink环境下,通过预测攻角仿真研究了变速风力发电机组的变桨距控制过程,结果表明,该控制模型能正确模拟各种风速下风力发电机组变桨距的动态过程,为进一步研究变速风力发电机的功率控制奠定了基础。When variable speed wind turbine is running, the pitch control will be employed to stabilize the output power, but the change of pitch angle will cause the change of attack angle, which leads to changes of blade aerodynamic performance. Therefore, in adjustable pitch control, an appropriate angle of attack leads to a good aerodynamic performance of wind turbine. In this paper, by use of a unified pitch control method to predict the angle of attack, the control model can correctly simulate the ad- justable pitch control process at kinds of wind speed in Matlab / Simulink tool,which lays the founda- tion for further study on the control of variable speed wind turbine power.

关 键 词：变速风力机 变桨距 流入角 攻角 MATLAB/SIMULINK 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程] TP391.9[自动化与计算机技术—计算机应用技术]