大型风机变桨距控制系统的研究

摘要

根据变桨执行机构不同,分析了液压变桨距系统和电动变桨距系统.从结构、原理、控制器设计等方面对两种变桨系统进行研究,并分别利用SimHydraulics和Simulink建模,仿真结果验证了建模和系统设计的正确性,直观反映了变桨距控制系统的动态特性,为大型风电机组的全工况仿真奠定基础.变桨距系统的控制器设计,为大型风电机组的研制提供有力的理论支持,为实际风场中变桨距控制系统提供参考依据.%Hydraulic variable pitch system and electric variable pitch system were studied with pitch actuator.The two variable pitch systems were studied from the aspects of structure, principle and controller design, and the models were set up by SimHydraulics and Simulink separately. The simulation results verified the correctness of models and design, and reflected the dynamic characteristics of the variable pitch control system, and provided the basis of the simulation of large-scale wind energy generation system under all kind of working conditions. The design of pitch controller offered theory support for the development of large-scale wind energy generation system, and provided the references for pitch controller system in actual wind fields.