基于致动线模型的HAWT-VAWT相互作用研究
HAWT-VAWT interaction study based on actuation line modeling
李银然 1郭朋威 2陈泽琼2
作者信息
- 1. 兰州理工大学能源与动力工程学院,甘肃 兰州 730050;甘肃省风力机工程技术研究中心,甘肃 兰州 730050
- 2. 兰州理工大学能源与动力工程学院,甘肃 兰州 730050
- 折叠
摘要
采用大涡模拟(LES)结合致动线模型(ALM),研究了水平轴风电场机组间隙中加入垂直轴风力机(VAWT)时对风电场的影响.模拟一组水平轴风力机(HAWT)和VAWT在大气边界层(ABL)条件下的相互作用,分析风力机功率输出特性及尾流特性.研究结果表明:在水平轴风电场中加入VAWT,可以提升风电场的发电量及充分利用机组间隙;风力机功率输出特性及尾流特性主要取决于两者的相对位置,当VAWT位于HAWT前方时,能够使HAWT的功率输出提高0.44%,反之位于后方时,VAWT的功率输出会有明显的提升,约为13.21%;相较于单一HAWT,加入VAWT后总功率可提升2.54%;此外,VAWT的尾流在经过HAWT近尾流区域时,会出现明显的偏转现象.在远尾流区域,两者的尾流相互混合,呈现出更快的恢复速率.
Abstract
A large eddy simulation(LES)combined with an actuator line model(ALM)was used to study the effect of adding a vertical axis wind turbine(VAWT)to the gap of a horizontal axis wind farm unit on the wind farm.The interaction between a group of horizontal axis wind turbine(HAWT)and VAWT under atmospheric boundary layer(ABL)conditions was simulated to analyze the power output characteristics and wake characteristics of the wind turbine.The results of the study show that adding VAWT to a horizontal axis wind farm can enhance the power generation of the wind farm and make full use of the unit gap.The wind turbine power output characteristics and wake characteristics mainly depend on the relative positions of the two,when the VAWT is located in front of the HAWT,it can increase the power output of the HAWT by 0.44%,and vice versa when it is located at the rear,the power output of the VAWT will be increased significantly by about 13.21%.Compared to a single HAWT,the total power can be increased by 2.54%with the addition of VAWT.In addition,the VAWT wake stream is significantly deflected as it passes through the HAWT near wake region.In the far wake region,the two wake streams mix with each other and show a faster recovery rate.
关键词
水平轴风力机/垂直轴风力机/致动线模型/风电场布局/尾流Key words
horizontal axis wind turbines/vertical axis wind turbine/actuator line model/wind farm layout/wake引用本文复制引用
出版年
2025
国家科技期刊平台
NSTL
万方数据