摘要
以甘肃省桥东第一风电场为例,针对风电机与大气流场之间的相互作用,研究了单台风电机和整个风电场的理论出力与实际出力特征。结果表明:(1)单台风电机的实际出力与理论出力之比平均为0.7,而风电场的风资源利用率平均值约为50%;(2)在该风电场中风电机尾流效应造成风速下降62.4%;(3)风电场中风电机的实际出力空间分布特征与风速的分布特征基本一致,从上游到下游依次减小,同时呈现中心小两侧大的特征。
By taking the first wind farm in Qiaodong,Gansu Province as an example,the theoretical and actual output characteristics of single wind turbine and the wind farm are studied based on the interaction between wind turbines and airflow field.The results show that:(1)the average ratio of actual output to theoretical output of a single wind turbine is 0.7,while the average ratio of wind resources utilization of the wind farm is 0.5.(2)The wind speed in the wind farm decreased by 62.4%caused by wake effect.(3)The spatial distribution characteristics of the actual output of the wind turbine in the wind farm are basically the same as those of the wind speed.It decreases from the upstream to the downstream,meanwhile,the center is smaller and the sides are bigger.
作者
高晓清
陈伯龙
杨丽薇
马明
惠小英
GAO Xiaoqing;CHEN Bolong;YANG Liwei;MAMing;HUI Xiaoying(Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,Gansu,China;Key Laboratory for Semi-Arid Climate Change of PRC Ministry of Education,College of Atmospheric Sciences,Lanzhou University,Lanzhou 730000,Gansu,China;Wind Power Technology Center of Gansu Electric Power Company,State Grid Corporation of China,Lanzhou 730070,Gansu,China)
出处
《高原气象》
CSCD
北大核心
2020年第2期431-436,共6页
Plateau Meteorology
基金
国家重点研发计划项目(2018YFB1502802)
国家自然科学基金项目(41575112,41805085)
国网甘肃省电力公司科技项目“风电场理论出力研究”项目(52272716000K)
甘肃省青年科技基金计划项目(18JR3RA011)。
关键词
风电场
尾流效应
理论出力
实际出力
Wind farm
wake effect
theoretical output
actual output
