风力机独立液压变桨距控制系统建模与仿真分析

Modeling and analyzing individual hydraulic variable pitch control system of wind turbine

建立独立液压变桨距控制系统的数学模型,并对变桨距控制系统进行稳定性分析,确定独立液压变桨距控制系统的设计参数;通过对风力机系统进行SIMULINK仿真分析,验证了风力机能在超额定风速状态下正常工作,说明此独立液压变桨距控制系统模型的可行性和设计参数的准确性,为开发液压变桨距控制器提供了依据。

In the present work,the mathematical model of the hydraulic adaptive variable-pitch system has been proposed.The stability of the hydraulic adaptive variable-pitch system has been analyzed,at last the parameters of the electro-hydraulic proportional variable-pitch system are gained.By analyzed in SIMULINK tool,wind turbine model,used with hydraulic adaptive variable-pitch system,performs well at above-rated wind.It＇s conclusion that this variable-pitch system model is feasible and its parameters are right.This model allows further develop variable-pitch control for wind turbine.