大型风力发电机组变桨距控制系统设计与仿真

Design and Simulation of Variable-pitch Control System for Large Scale Wind Turbine

随着风力发电机组单机容量的大型化,变桨距风力发电机已成为风力发电机组的主要研究和发展方向。基于变速恒频风力发电系统,对变桨距控制系统的设计方法进行研究。对风力机的结构和基本工作原理进行了探讨,并分析了风力发电机组的控制过程,分别设计了低于额定转速的PI控制器及高于额定风速的变桨距控制器,通过对控制系统的机理模型仿真,验证了变桨距控制系统设计的正确性。

With the wind turbine unit capacity of the large-scale, variable pitch wind turbine has become a major research and development. Based on the variable speed constant frequency wind power generation system, the pitch control system design method is used in this paper. The structure and basic working principle of the wind turbine are discussed and analyzed the wind turbine control process , respectively design the PI controller of lower than the rated speed and higher than the rated speed of the variable pitch controller,and through the model simulation to verify the pitch control system is reasonable.