Page 83 - 电力与能源2024年第一期
P. 83
第 45 卷 第 1 期 电力与能源
2024 年 2 月 77
DOI:10.11973/dlyny202401015
能源技术
海面粗糙度与尾流衰减系数对近海风电场
发电量的影响
孟令峰 ,徐浩铭 2
1
(1. 国电电力综合能源内蒙古有限公司,内蒙古 鄂尔多斯 017010;
2. 中国航空规划设计研究总院有限公司,四川 成都 610095)
摘 要:海上风电场正迎来加速发展期,准确评估发电量对项目的经济收益至关重要。远海风电场的发电量
预估值已与实际值十分接近,但近海风电场的发电量预估值与实际值还有一定差距。为了寻找能准确评估近
海岸风电场发电量的模型,对常用的风电场发电量计算软件 WAsP 进行研究,探究不同参数取值对发电量的
影响。围绕海面粗糙度、尾流衰减系数这两个参数的取值对发电量的影响展开研究,测算了 0~0.005 范围内
的海面粗糙度及 0.03~0.05 范围内的尾流衰减系数对发电量计算结果的影响,并根据实际项目给出了取值建
议。结果表明:随着海面粗糙度的增大发电量减小,而随着尾流衰减系数的增大发电量增大。该研究为近海
岸风电场发电量评估提供了数据基础和理论支撑,具备一定的科学意义和应用价值。
关键词:海面粗糙度;尾流衰减系数;近海风电场;发电量
作者简介:孟令峰(1974—),男,工程师,从事新能源发电项目管理工作。
中图分类号:TM614 文献标志码:A 文章编号:2095-1256(2024)01-0077-04
Influence of Sea Surface Roughness and Wake Attenuation Coefficient on Power
Generation of Offshore Wind Farms
1
MENG Lingfeng ,XU Haoming 2
(1. Guodian Power Integrated Energy Inner Mongolia Co.,Ltd.,Ordos 017010,Inner Mongolia Autonomous Region,China;
2.China Aviation Planning and Design Institute Co.,Ltd.,Chengdu 610095,Sichuan Province,China)
Abstract:Offshore wind farms are ushering in a period of accelerated development, and accurate assessment of
power generation is crucial to the economic benefits of the project. The estimated power generation of offshore
wind farms is very close to the actual value, but there is still a gap between the estimated power generation of off⁃
shore wind farms and the actual value. In order to find a model that can accurately evaluate the power generation
of offshore wind farms, this paper studies the commonly used wind farm power generation calculation software
WasP to explore the impact of different parameter values on power generation. This study focuses on the rough⁃
ness and wake attenuation coefficient, two parameters whose values have a significant impact on the power gen⁃
eration, and calculates the impact of the roughness in the range of 0~0.005 and the wake attenuation coefficient in
the range of 0.03~0.05 on the power generation, and gives value suggestions according to the actual project. The
results show that the power generation decreases with the increase of roughness, and increases with the increase
of wake attenuation coefficient. Through the research of this paper, the data basis and theoretical support are pro⁃
vided for the evaluation of power generation of offshore wind farms, which has certain scientific significance and
application value.
Key words:roughness,wake attenuation coefficient,offshore wind farms,power generation
“十三五”期间,海上风电的政策支持力度逐 运营。
渐加大,促进了基快速发展。截至目前,我国已建 在海上风电项目的前期设计阶段和后评估阶
成了多个海上风电场示范工程,并实现了商业化 段,都需要计算发电量,以便对设计、施工、运行等进

