风电机组自适应控制策略研究

Research on adaptive control strategy of wind turbine

风力发电机的参数准确度和环境变化对风能利用率影响较大。为了提高系统的自适应控制性能,分析了风轮空气动力特性,介绍了当前风力发电机自适应控制原理和性质;为了优化这种算法,引入了具有参数估计功能的反推自适应控制策略,实时辨识控制参数,然后通过数据共享系统让所得参数在风电场内共享,可提高风电场的风能利用率,增加风电场电能输出。

The parameter accuracy and environmental change of wind turbine have great influence on wind energy efficiency.In order to improve the adaptive control performance of the system,the aerodynamic characteristics of the wind turbine are analyzed,and the principle and properties of the current adaptive control of wind turbine are introduced.In order to optimize this algorithm,a backstepping adaptive control strategy with parameter estimation function is introduced.The real-time identification of control parameters and sharing of the obtained parameters in the wind farm through the data sharing system can improve the wind energy utilization rate of the wind farm and increase the power output of the wind farm.