基于GDW理论的风力发电机整机性能分析

由于所受工况瞬态多变且工作环境恶劣,所以风力发电机组是一个复杂、多变量、非线性的不确定系统,因此,整机性能分析是风力发电机系统设计的关键.引入了风力机的动态人流(GDW)理论,在Matlab中建立了600 kW失速型水平轴风力机的气动力,在Simulink传动系统的动力学仿真模型,模型中考虑了叶片的气弹耦合性,并在ADAMS中建立了包含柔性叶片和塔架的风力机整机虚拟样机模型,将三者联系起来建立了联合仿真模型.分析了风力机的功率系数、额定功率以及叶片与塔架的变形.与Bladed的分析计算结果相比较,结果证明了仿真方法及仿真模型的正确性.

Performance Analysis of Stall-regulated Wind Turbine Based on GDW

The wind turbines operate in execrable environment,in which wind is transient and variable.The wind turbine is a complicated nonlinear uncertain system.So analysis of system performance is crucial to the system design of wind turbines.The concept of Generalized Dynamic Wake (GDW) Thoery has been introduced first.600kW stall-regulated wind turbine's aerodynamic model and drive train dynamic model have been constructed in Matlab7.1 using Simulink toolbox,and the wind turbine's virtual prototyping has been constructed in ADAMS in which the blades and tower are modeled as flexible parts.Then using the joint-simulation technology,the wind turbine's Cp ,rated power and deformations of blades and top of tower have been investigated.The results were compared with Bladed( version 3.67).