基于动量理论的风力机三维工程全尾流模型研究  

RESEARCH ON THREE-DIMENSIONAL ENGINEERING FULL WAKE MODEL OF WIND TURBINE BASED ON MOMENTUM THEORY

作　　者：张萍[1] 刘洪威 吴宁宇 魏玉憧 李佳根 石建伟 Zhang Ping;Liu Hongwei;Wu Ningyu;Wei Yuchong;Li Jiagen;Shi Jianwei(Key Lab of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province(Hebei University of Technology),Tianjin 300130,China;College of Artificial Intelligence and Data Science,Hebei University of Technology,Tianjin 300130,China;Hebei Construction Investment Offshore Wind Power Co.,Ltd.,Tangshan 063000,China)

机构地区：[1]河北省电磁场与电器可靠性重点实验室(河北工业大学),天津300130 [2]河北工业大学人工智能与数据科学学院,天津300130 [3]河北建投海上风电有限公司,唐山063000

出　　处：《太阳能学报》2024年第11期460-466,共7页Acta Energiae Solaris Sinica

基　　金：河北省省级科技计划(21567605H);基于无线网络全覆盖的海上风电安全生产管理平台建设研究与应用(XT-KJ-2021012)。

摘　　要：为综合研究风力机尾流特性,将尾流区域分为近尾流区域和远尾流区域,并考虑风切变效应引起的风速差对尾流速度的影响,提出一种基于动量理论的三维工程全尾流模型(3DFM)。与风场实测数据对比,3DFM模型的近尾流区预测精度高达95.82%,远尾流区预测精度高达95.00%,验证了模型的有效性和准确性。根据来流风不同大气稳定状态修正尾流膨胀系数和风切变系数,详细研究大气稳定状态对尾流速度分布和恢复的影响。研究结果表明大气层越稳定,风切变系数越高,下游相同位置处的尾流区域面积越大,尾流速度恢复得越慢。In this article,a three-dimensional engineering full wake model(3DFM model)based on the momentum theory is proposed to study the wake characteristics of wind turbines.The 3DFM model not only divides the wake region into the near-wake region and the far-wake region;but also considering the influence of wind shear effect on wake velocity.The validity and accuracy of 3DFM model are verified by the measured data of wind farm.The prediction accuracy of 3DFM model is as high as 95.82%in the near-wake region and 95.00%in the far-wake region,which verifies the validity and accuracy of the model.The wake expansion coefficient and wind shear coefficient are modified according to the different atmospheric stable states of the inflow wind,and the influence of the atmospheric stable state on the wake velocity distribution and recovery is studied in detail.The results show that the more stable the atmosphere,the higher the wind shear coefficient,the larger the wake area at the same position downstream,and the slower the wake speed recovery.

关 键 词：尾流效应 风电场 风力机 全尾流 风切变效应 大气稳定性 

分 类 号：TM614[电气工程—电力系统及自动化]