摘要
为掌握连续丘陵地形对风力发电机功率特性的影响,基于CATIA软件和三维计算流体力学CFD软件(Fluent)建立NREL PhaseⅥ风力机气动模型,并耦合三维连续丘陵地形模型和风切变模型,得到连续丘陵条件下的风力机气动特性分析方法。通过与NREL PhaseⅥ风力机大气边界层(ABL)风洞中的实验数据对比,验证本文风力机气动特性分析方法的准确性。随后,分析风力发电机在平坦地面和丘陵地形的风力机功率,并改变风力机相对于丘陵位置以及丘陵的形状,研究连续丘陵对风力机的转矩、推力及功率的影响规律,获得连续山体模型最佳的风力机摆放位置。研究表明,位于第2座山体顶部的风力机功率最高,当风力机置于丘陵下游地区需尽量避免失速区,且位于山体侧边风力机功率高于位于山体前后的风力机。
In order to grasp the influence of continuous hilly terrain on the power characteristics of wind turbines,the NREL Phase VI wind turbine aerodynamic model was built based on CATIA software and Computational Fluid Dynamics software(Fluent).Coupled with three-dimensional continuous hilly terrain model and wind shear,the model obtains the aerodynamic characteristics analysis method of the wind turbine under continuous hill conditions.The accuracy of the aerodynamic analysis method of the wind turbine is verified by comparison with the experimental data in the atmospheric boundary layer(ABL)wind tunnel of the NREL Phase VI wind turbine.Then,andyzing the wind turbine power on the flat ground and hilly terrain,and changing the wind turbine’s position relative to the hills and the shape of the hills,studying the influence of the continuous hills on the torque,thrust and power of the wind turbine,finally obtain the best location of wing turbine for continuous mountain model.Research results show that the wind turbine at the top of the second mountain has the highest power.When the wind turbine is placed hilly downstream area,the stall zone should be avoided as much as possible,and the wind turbine on the side of the mountain has higher power than that in front of and behind the mountain.
作者
周天熠
谭剑锋
孙义鸣
蔡建纲
Zhou Tianyi;Tan Jianfeng;Sun Yiming;Cai Jian’gang(School of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 211816,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2021年第4期359-365,共7页
Acta Energiae Solaris Sinica
基金
江苏省自然科学基金面上项目(BK20161537)
国家自然科学基金(11502105)
旋翼空气动力学重点实验室开放课题(RAL20200302)。
关键词
功率特性
仿真
风切变函数
NREL风力机
连续丘陵地形
power characteristics
simulation
wind shear function
NREL wind turbine
continuous hilly terrain
