In order to understand the influence of wind speed spatial distribution on the output power characteristics of wind turbine units with the rapid increase of single unit capacity,the interaction model of wind and blade element at different positions under the spatial distribution of wind speed is established.Then the equivalent power output model in the swept plane of the wind turbine is obtained by the integration and accumulation method.The model is reduced in dimension and the impact of key parameters is an-alyzed,and the quantitative evaluation formula of the impact of key parameters on the equivalent power is obtained.The 3D drawing of key parameter function relationship is completed,which provides a quantitative tool for the optimal design of new air-craft.Finally,the model is verified by the whole machine simulation of the authoritative certification software.The results show that the loss of wind speed spatial distribution of large blade units is between 3%and 6%according to different designs.Reason-able tower height design can effectively reduce the loss of wind speed spatial distribution.
万方数据
