多风力机尾流干扰模型特性研究与分析  

Study and analysis of wake disturbance model characteristics of multi-wind turbine

作　　者：刘智益 陈瑶 高晓霞 王喜 高晓峰 LIU Zhiyi;CHEN Yao;GAO Xiaoxia;WANG Xi;Gao Xiaofeng(Longyuan(Beijing)Wind Power Engineering Technology Co.,Ltd.,Beijing 100000,China;School of Energy,Power and Mechanical Engineering,North China Electric Power University,Baoding 071003,China;Hebei Longyuan Wind Power Generation Co.,Ltd.,Zhangjiakou 076450,China;Beijing Survey and Design Institute Co.,Ltd.,Beijing 100000,China)

机构地区：[1]龙源(北京)风电工程技术有限公司,北京100000 [2]华北电力大学能源动力与机械工程学院,河北保定071003 [3]河北龙源风力发电有限公司,河北张家口076450 [4]北京市勘察设计研究院有限公司,北京100000

出　　处：《中国测试》2021年第5期136-144,共9页China Measurement & Test

基　　金：国家自然科学基金青年科学基金项目(51606068);河北省自然科学基金(E2019502072);中央高校基本科研业务费(2020MS107)。

摘　　要：针对目前一维、二维甚至三维的尾流模型只是描述单台风力机下游的风速分布问题,该文为更好地研究多风力机尾流模型,在三维Jensen-Gaussian(3DJG)尾流模型的基础上,提出串联多风力机以及错列双风力机的三维尾流模型,并修正尾流区域的膨胀系数k。该尾流膨胀系数k,考虑尾流叠加的影响,根据3DJG模型里面的尾流膨胀系数作为第一个风力机的k,以第一个风力机为基础做出修正。为分析多风力机尾流分布特点和验证所提出模型的准确性,用河北省石人和东湾两个风电场作为实验区域,实测其中两台风力机的轮毂高度处的水平风速,对新提出的多风力机尾流模型进行实验验证。结果石人风电场串联多风力机尾流模型在水平高度处最优的精度达到平均绝对误差为0.06%。To address the problem that the current one-dimensional,two-dimensional and even threedimensional wake models only describe the wind speed distribution downstream of a single wind turbine,this paper proposes a three-dimensional wake model for tandem multi-wind turbines and staggered double wind turbines based on the three-dimensional Jensen-Gaussian(3DJG)wake model and corrects the expansion coefficient k in the wake region in order to better study the multi-wind turbine wake model.Considering the influence of wake superposition,the wake expansion coefficient in 3DJG model was taken as the k of the first wind turbine,and the correction was made based on the first wind turbine.In order to analyze the characteristics of multi-wind turbine wake distribution and verify the accuracy of the proposed model,the horizontal wind speed at the height of the hub of two wind turbines was measured in Shiren and Dongwan Wind Farm in Hebei province as experimental areas,and the newly proposed multi-wind turbine wake model was verified by experiments.The results show that the wake model of series wind turbines has high accuracy at horizontal height.

关 键 词：尾流模型 多风力机 尾流膨胀系数 三维Jensen-Gaussian 激光雷达 

分 类 号：TM315[电气工程—电机]