风力发电机耦合振动分析

采用叶素动量理论进行风力机气动力学的计算分析,并用MATLAB/simulink进行编程,建立风力机传动链的数学模型并在MATLAB/simulink中进行传动链系统的编程运算,建立风力机ADAMS柔性多体结构动力学仿真模型,将MATLAB/simulink和ADAMS进行风力机振动性能的联合仿真;将计算的气动载荷加载到风力机叶片结构上,将传动系统模型的反扭矩加到ADAMS风轮模型上,同时风力机的结构变形也对气动性能、传动性能产生耦合影响,仿真最终实现风力机系统振动性能耦合分析。仿真数据同实验测试数据比较表明,该联合仿真方法可以较好的模拟风力机的振动特性。研究为风力机振动特性分析进行了一次有益的探索。

Coupled Vibration Analysis of wind Turbine

The aerodynamic characteristic of wind turbine was calculated by applying the blade element momentum(BEM) theory and programmed with Matlab/simulink. The drive chain was calculated by applying state space method and also programmed with Matlab/simulink. The model of the wind turbine was built by aid of ADAMS. In the simulation, the aerodynamic loads and the torque were equivalently applied to the structure of rotor and the effect of the deformation of structure on the loads was also taken into account. The results show that the method is excellent in simulating the vibration characteristics and the results are in good agreement with the test results.