哈尔滨工程大学学报2024，Vol.45Issue(1)：153-161,9.DOI:10.11990/jheu.202112038
基于各项异性多项式分布的风力机三维尾流模型
A three-dimensional wake model for wind turbines based on the polynomial distribution of each anisotropy
摘要
Abstract
A highly accurate wake model is of great significance for wind farm layout optimization and power genera-tion prediction.This paper proposes a more advanced three-dimensional wake model by fully considering the wind shear effect and the mass loss generated by the wind speed difference between wind shear and uniform flow.Unlike the previous Gaussian models,the proposed model assumes that the velocity distribution is polynomial in shape and adopts a more intuitive physical wake boundary.Additionally,considering the anisotropic expansion of the wake boundary,expressions for the expansion rates of the lateral and vertical wake boundaries are given,which allows the model to determine the expansion rates in both directions based only on the incoming wind conditions and wind turbine parameters.The prediction accuracy of the proposed model was verified using large eddy simulation data for onshore(I0=13.4%,9.4%)and offshore(I0 =6.9%,4.8%)wind conditions.The results show that the pro-posed model can better predict the vertical and lateral wake distribution of wind turbines with the smallest maximum and minimum errors than conventional models.关键词
风电/风电场/风力机/解析模型/风速/高斯分布/大涡模拟/湍流Key words
wind power/wind farm/wind turbine/analytical model/wind speed/gaussian distribution/large eddy simulation/turbulence分类
能源科技引用本文复制引用
凌子焱,赵振宙,刘惠文,马远卓,刘一格,王丁丁..基于各项异性多项式分布的风力机三维尾流模型[J].哈尔滨工程大学学报,2024,45(1):153-161,9.基金项目
国家自然科学基金项目(52376179,51876054,11502070) （52376179,51876054,11502070）
江苏省研究生实践创新计划(SJCX23_0183). （SJCX23_0183）
