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根据国际能源署Task 27项目,针对置于张北风能基地的集装箱替代建筑物进行建模。利用适宜该地风资源的中性平衡大气边界层理论编制更精确的入流条件,从风加速因子、平均湍流厚度及风力机功率增大因子等新的角度分析箱顶垂直方向上的湍流特性及箱顶风力机适宜的安装位置及高度。结果表明:270.0°入流条件,箱顶1.17倍箱高高度范围为非高湍流区,且1.17~1.50倍箱高高度范围为风力机的适宜安装高度、前沿点为适宜安装位置;选定风力机的适宜安装位置为前沿点、安装高度为1.42~1.52倍箱高,且年平均风速、不同水平风向角下风力机功率增大因子最大可达54.5%,可为建筑屋顶风力机的微观选址提供参考。
According to the International Energy Agency’s Task 27 project, a model of container replacement building at Zhangbei Wind Power Base was modeled. Based on the theory of neutral equilibrium atmosphere boundary layer suitable for the geo-wind resource, more accurate inflow conditions are compiled and the turbulent characteristics in the vertical direction of tank top are analyzed from the perspectives of wind acceleration factor, mean turbulence thickness and wind power factor increase, Box wind turbine suitable installation location and height. The results show that the height range of 1.17 times of box height is non-high turbulence area under 270.0 ° inflow conditions, and the height range of 1.17-1.50 times height box is the suitable installation height of wind turbine. The front point is the suitable installation position. The selected wind turbine The suitable installation position is the front point, the installation height is 1.42 ~ 1.52 times of box height, and the annual average wind speed and wind power angle increase angle can reach 54.5%, which can be used for micro-site selection of building roof wind turbine for reference.