无模型自适应控制下的风轮动态载荷控制

Dynamic Load Control of Wind Turbine Based on Model-free Adaptive Control

随着能源结构的不断调整,风电机组的制造量在逐年增加,与此同时,风力机的尺寸也越来越大,对于风轮来说,这无疑会使其柔性增加,更为重要的是,风轮会受到较为复杂的动态载荷,因此必须要对其进行控制,以此来延长机组寿命,提升其运行效率。基于风电机组的线性化模型,通过坐标变换理论,将叶片根部的弯矩反馈到到两个固定的直交坐标系,设计出了一种无模型自适应控制器对风轮的动态载荷进行控制,有效地消除了风轮的俯仰力矩和偏转力矩。在FAST和SIMULINK的联合仿真下,验证了控制器的有效性。

With the continuous adjustment of energy structure,the manufactured number of wind turbine is increasing year by year. At the same time,the greater size of wind turbine will undoubtedly increase the flexibility of wind turbines that will be affected by complex dynamic loads. Therefore,we must carry out the load control to extend the service life of the machine and improve its operating efficiency. Based on the linear model of wind turbine generation,a model-free adaptive controller was designed to control the dynamic load of the wind turbine in this paper by transferring the loads of blade roots into tw o fixed orthogonal axis. The joint simulation of FAST and SIM ULINK verified the effectiveness of the controller.