大型风电场群风电场布局间距的模型研究  

Model Study on the Optimal Interval Distance among Wind Farms in Large-Scale Wind Farm Group

作　　者：陈伯龙[1,2] 高晓清[1] 左洪超[2] 汪宁渤[3] 刘磊[1] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所寒旱区陆面过程与气候变化重点实验室,甘肃兰州730000 [2]兰州大学大气科学学院,甘肃兰州730000 [3]甘肃省电力公司风电技术中心,甘肃兰州730070

出　　处：《高原气象》2012年第6期1746-1752,共7页Plateau Meteorology

基　　金：中国科学院"科技支甘"工程项目"甘肃酒泉风能预报集成研究";中国科学院"西部之光"人才计划联合学者项目"甘肃省风能资源精细化评估研究"共同资助

摘　　要：利用边界层理论和梯度输送原理,依据动量守恒定律,在大气中性层结条件下建立了风电场的动量吸收模型和风电场下游的动量补偿模型,计算出风电场尾流距离。参照实际风电场布局规模和风机几何参数设计数值试验,并对尾流距离与这些参量之间的关系进行了初步分析。结果表明,风电场尾流距离随风机直径、风塔高度、风机行数和风机动能利用系数的增加而增大,随地表粗糙度和风机列间距的增加而减小,并且这一距离不受风速和风机列数的影响。Based on the boundary layer theory,the gradient transfer principle and the atmospheric neutral stratification,the momentum absorption and downstream compensation models in wind farms are established on the law of conservation of momentum,and the wake distance from wind farm is calculated.Numerical experiments based on the size of the actual wind farm layout and turbine geometry parameters are designed.The relationship between wake distance and these variables is preliminary analyzed.The results show that the wake distance increases with the diameter of turbine,tower height,rows of turbine and kinetic energy utilization factor,while decreases with the surface roughness and the space between columns,and it has no influence from wind speed and columns of turbine.

关 键 词：风电场 布局设计 尾流距离 有效风功率密度 

分 类 号：P425.63[天文地球—大气科学及气象学]