基于泛模型的风轮不平衡载荷控制  

ROTOR UNBALANCE LOAD CONTROL OF WIND TURBINE BASED ON UNIVERSAL MODEL

作　　者：王晓东[1] 姚兴佳[1] 

机构地区：[1]沈阳工业大学,沈阳110023

出　　处：《太阳能学报》2012年第2期215-220,共6页Acta Energiae Solaris Sinica

基　　金：国家科技支撑计划项目(2006BAA01A03);沈阳市科学技术计划项目(F10-246-6-00)

摘　　要：针对大型变速变桨风电机组风轮的非线性特征和难以建立精确模型的问题,设计了一种基于泛模型的风轮不平衡载荷自适应控制器。根据传感器测量的叶根载荷,对3个叶片进行独立变桨控制,通过3个叶片的桨距角差异来减小风轮的不平衡载荷。在此基础上,以双馈变速变桨机组为对象,通过仿真对该控制器进行了测试,结果表明该方法用于减小风轮的不平衡载荷是可行且有效的。With the increasing of wind turbine size and rotor diameter, the wind shear, turbulence and tower shadow more and more affect the load of large scale turbine. Dynamic unbalance load become a key in large scale wind turbine design. It is approved that the pitch control can impact on the rotor loads. Considering the difficulty to build the exact model and non-linear character of rotor, an individual controller banded on universal model was developed in to mitigate the rotor unbalance load for variable speed wind turbine. The controller adjusts the pitch angle of three blades individually based on the measurement load. The pitch angle difference could reduce the effect of wind diversification in the rotor plane. The controller was simulated based on a doubly fed variable speed wind turbine model. The simulation result verified that it is feasible and effective.

关 键 词：风力发电 风电机组 载荷控制 变桨控制 

分 类 号：TM315[电气工程—电机]