风电场设计中数值模拟数据的应用研究

Application of Numerical Simulation Data in Wind Farm Design

在风电设计时,由于当地气象站资料与风电场实测数据的R2值高,不能很好地进行测风数据的代表年订正,因此,数据订正时常常考虑采用数值模拟成果。为了在实际工程应用中更好的使用数值模拟数据,通过湖南省南岳气象站1981～2015年的风向和风速数据与常用的ERAI、NNRP、MERRA和MERRA2数值模拟数据的对比分析,得出结论:在选用数值模拟数据时,可优先使用NNRP数据;使用数值模拟数据进行代表年订正存在一定的不确定性;通过数值模拟数据进行代表年订正的成果存在一定的偏差。

In the design of wind power,because the correlation between the local weather station data and the measured data of the wind farm is often poor,the annual representative data of the wind measurement data cannot be well corrected.Therefore,numerical simulation results are often considered when the data is revised.In order to make better use of numerical simulation data in practical engineering application,this paper compares and analyzes the wind direction and wind speed data of Nanyue weather station from 1981 to 2015 with the common ERAI,NNRP,MERRA and MERRA2 numerical simulation data,and get conclusion:NNRP data can be used preferentially when using numerical simulation data.There is some uncertainty in using numerical simulation data to carry out annual revision.There are certain deviations in the results of numerical revision of representative years from the numerical simulation data.