渤海地区双参数风资源评估方法研究

RESEARCH ON TWO-PARAMETERS WIND RESOURCE ASSESSMENT METHODS IN BOHAI SEA

摘要: 针对渤海地区风能开发问题,阐述国内外风资源评估方法的研究现状,在风资源评估领域引入Nakagami和Rician分布,结合实测风数据,研究几种常见的双参数风资源评估方法及其应用,结果表明:渤海地区风速集中于3～4 m/s,适于风电工程Class I型开发,Weibull、Gumbel、Logistic、Normal和Rician分布拥有相同的拟合规律,适合拟合同一类型模型,而Gamma、Loglogistic、Lognormal和Inverse Gaussian分布的拟合规律正好相反。Nagkagami分布比传统如Weibull等分布模型更适于评估渤海地区的风资源。

Abstract: Facing the problem of wind energy development in Bohai sea,the research status of wind resource assessment methods at home and abroad was stated.Nakagami and Rician distribution were introduced in the wind energy field,and several other twoparameters wind resource assessment methods and their applications were discussed.Based on the observed wind data,it was found that the wind speeds in Bohai sea are almost between 3 m/s and 4 m/s,corresponding to Wind Power Class I.Weibull,Gumbel,Logistic,Normal and Rician distributions has the same fitting law,which is suitable for the same type of distribution.However,Gamma,Loglogistic,Lognormal and Inverse Gaussian distributions have the opposite law.The Nakahami distribution is more suitable than the other traditional distributions like Weibull distribution for wind resource assessment in the Bohai sea.