Based on the data and considering the influence of yaw control on wake model,this paper constructs a reduced-order wind turbine wake model with input and output.At the same time,to solve the inefficiency of the input-output dynamic mode decomposition(IODMD)method in reconstructing the local flow field,an extended state input-output dynamic mode decomposition(EIODMD)approach is proposed by integrating wind turbine speed,so that the characteristics of the wind turbines can be considered in the mode decomposition.The results show that compared with the rtaditional IODMD method,the proposed EIODMD can improve the flow field reconstruction and prediction accuracy,demonstrating the superiority of the reduced-order model based on the proposed EIODMD approach.
关键词
风力机/尾流/动态模态分解/状态扩张/降阶模型
Key words
wind turbines/wakes/dynamic mode decomposition/state expansion/reduced-order model
维普
万方数据