基于动态逆的风力发电系统桨距控制器设计与仿真  

Pitch Controller Design and Simulation of Wind Turbine Power System Based on Nonlinear Dynamic Inversion

作　　者：刘吉宏 吕跃刚[1] 徐大平[1] 

机构地区：[1]华北电力大学控制科学与工程学院,北京102206

出　　处：《系统仿真学报》2009年第19期6229-6231,6255,共4页Journal of System Simulation

基　　金：国家自然科学基金(50677021);教育部重点项目基金(105049)

摘　　要：在空气动力学基础上,建立了变浆距风力发电系统的非线性数学模型。在此基础上,利用非线性动态逆方法,设计了系统在额定风速以上工作时的桨距角控制律。整个设计都是针对风力发电系统的非线性状态方程进行的,克服了基于局域近似线性化方法的缺点,因此控制性能得到改善,适合于工况点大范围变化的情形,而且求解过程比较简单。最后进行了对比仿真,结果验证了本方法的有效性。The nonlinear mathematical model of a variable pitch wind turbine power system was established based on aerodynamics. On the basis of this model, the nonlinear dynamic inversion method was applied to design the pitch angle controller of the system working above the rated wind speed. The whole design is based on the nonlinear state equation of wind turbine power system and overcomes the disadvantage of local approximate linearization method, so this method improves the control performance and it is suitable for the large range change of operation point, furthermore, it has simple solution process. The contrastive simulation was carried out and the results verify that this method is valid.

关 键 词：非线性系统 非线性动态逆 桨距角控制 恒功率 变工况 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TM614[自动化与计算机技术—控制科学与工程]