In order to calculate the time-history response of wind turbine structure more accurately,the influence of wind shear,tower shadow and mountain environment was considered.Based on Kaimal self-power spectrum and cross-power spectrum,the harmonic superposition method was used to simulate fluctuating wind speed.The spatial three-dimensional non-stationary wind field simulation method with wind direction correlation was established by using turbulence coherence model.Taking 2 MW wind turbine of a wind farm as an example,the correctness of the simulation method is verified and compared with the simulation results without considering the correlation of wind direction.The results from statistical analysis of simulated data and comparison with target spectrum demonstrated the accuracy and accuracy of the presented method,the simulation of three-dimensional non-stationary fluctuating wind field can be realized.The results from statistical analysis of simulated data and comparison with target spectrum demonstrated accuracy of the presented method,and considering the correlation of wind direction can improve the simulation coincidence,which proves the necessity of simulation method.
关键词
风电机组/谐波叠加法/非平稳脉动风/风向相关性/功率谱检验
Key words
wind turbine/harmonic superposition method/non-stationary fluctuating wind/wind direction correlation/power spectrum verification
维普
万方数据