Calculation and comparative study of ultimate wind loads on wind turbine tower

In the 2 MW horizontal axis wind turbine simulation model, using GH Bladed and the Japanese Guidelines for Design and Explanation of Wind Power Generation Equipment Tower Structure to calculate the ultimate wind load of the wind turbine tower respectively, and studied the difference in normal power conditions and storm conditions of two kinds of calculation methods. The results showed that the limit wind load in the normal power generation condition is higher than that of the storm condition by the two calculation methods. The results calculated by the Bladed GH are too large. The main reason of the difference of the limit wind load is two kinds of calculation methods, which are the condition of wind condition, the type of working condition and the different theoretical basis. For the wind turbine tower is a kind of typical high leg dumbbell high-rise structure, tower parts influence wind wheel, the cabin is relatively large, the calculation results using the GH Bladed software is more accurate. © 2019, Editorial Board of Acta Energiae Solaris Sinica. All right reserved.