电气技术Issue(1)：6-10,5.
减小塔影效应载荷波动的独立变桨距控制研究
The Study of Individual Pitch Control on Reducing the Load Fluctuation of Tower Shadow
摘要
Abstract
Load fluctuation conditions of wind turbine under tower shadow was researched and individual pitch control was introduced.Establish the linear time-varying model of the rotor and make it into the form of the state equation.Then,make it into the linear time invariant model through Coleman transformation.Based on this model,achieve the design of individual pitch system with PID controller.load fluctuation conditions of wind turbine were simulated and compared under tower shadow between individual pitch control and collective pitch control and analyse the fatigue damage of wind turbine through rainflow cycle counting.The result shows that load fluctuation of wind turbine using the individual pitch control under tower shadow has better effect and it weakens the load fluctuation effect of tower shadow,extends the working life of wind turbine.关键词
独立变桨距/统一变桨距/Coleman变换/塔影效应/载荷波动/PID控制器/俯仰弯矩/偏航弯矩Key words
individual pitch/collective pitch/Coleman transformation/tower shadow/load fluctuation/PID controller/tilt moment/yaw moment分类
信息技术与安全科学引用本文复制引用
陈雷,孙宏利,邢作霞..减小塔影效应载荷波动的独立变桨距控制研究[J].电气技术,2012,(1):6-10,5.基金项目
国家十一五支撑计划 （）
大型风力发电机组工厂试验平台建设 （）
