海面粗糙度与尾流衰减系数对近海风电场发电量的影响  

Influence of Sea Surface Roughness and Wake Attenuation Coefficient on Power Generation of Offshore Wind Farms

作　　者：孟令峰 徐浩铭 MENG Lingfeng;XU Haoming(Guodian Power Integrated Energy Inner Mongolia Co.,Ltd.,Ordos 017010,Inner Mongolia Autonomous Region,China;China Aviation Planning and Design Institute Co.,Ltd.,Chengdu 610095,Sichuan Province,China)

机构地区：[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

出　　处：《电力与能源》2024年第1期77-80,共4页Power & Energy

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。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.

关 键 词：海面粗糙度 尾流衰减系数 近海风电场 发电量 

分 类 号：TM614[电气工程—电力系统及自动化]