202311

风电场常用工程尾流模型对比与分析
发布人:网站管理员 发布时间:2023/11/25 点击次数:16次
  

风电场常用工程尾流模型对比与分析
袁飞
(国电联合动力技术有限公司,北京 100039)
摘要: 介绍了Jensen 模型、Frandsen 模型和Gaussian 模型3 种尾流模型的推导假设条件和计算公式, 建立基于环境
湍流强度的统一尾流模型参数设置方法, 并对不同湍流强度下的尾流基本特性进行分析, 进一步采用风电场实测数据对
3 种尾流模型进行验证和分析。结果表明: Jensen 模型和Gaussian 模型适用于风机间距9D ~ 10DD 为叶片直径) 以内
的尾流模拟, Frandsen 模型适用于风机间距较大(>10D) 的风场尾流模拟; 通过实测数据验证, Gaussian 模型模拟结果
最好, 能够较好地模拟径向尾流分布和最大尾流损失情况。
关键词: 风机; 尾流模型; 尾流损失; 湍流强度
中图分类号: TM614 文献标志码: A 文章编号: 2095-0802-(2023)11-0037-05
Comparison and Analysis of Commonly Used Engineering Wake Models in
Wind Farms
YUAN Fei
(Guodian United Power Technology Co., Ltd., Beijing 100039, China)
Abstract: The derivation assumptions and calculation formulas of the Jensen, Frandsen and Gaussian wake models were
introduced, a unified wake model parameter setting method based on the environmental turbulence intensity was established, and
the basic characteristics of the wake under different turbulence intensities were analyzed. The three wake models were further
verified and analyzed by using the measured data of the wind farm. The results show that the Jensen and Gaussian wake models
are suitable for the wake simulation of the fan spacing within 9D - 10D, and the Frandsen model is suitable for the wake
simulation of the wind field with a large fan spacing (>10D) ; through the verification of the measured data, the simulation results
of the Gaussian model preferably, which can better simulate the radial wake distribution and the maximum wake loss situation.
Key words: wind turbine; wake model; wake loss; turbulence intensity