上风向山头对风电机组的安全性影响研究

  目的  由于生态保护和风场边界等条件的限制，有些机位点的主风向方向存在明显山头障碍物遮挡，影响了机组的发电量和安全性能，文章旨在研究减小山头对机组影响的方法。  方法  基于STAR-CCM+软件平台对主风向上有山头遮挡的机位点附近地形进行了数值模拟，分析了扇区管理、提高轮毂高度、地形修整等方法对机组的安全影响。  结果  结果表明:扇区管理、提高轮毂高度和地形修整都能改善风机的安全性。但在该项目中，采用双平台的地形修整的方法对改善风机安全性更加有效。  结论  分析结果可为如何降低来风方向的山头对风机的影响提供方法参考。

Research on the Influence of Upwind Hilltop on the Satety Impact of the Wind Turbine

  Introduction  Due to the limitation of ecological protection and wind field boundary, there are obvious hill obstacles in the prevailing wind direction of some turbine sites, which affects the generating capacity and safety performance.This paper aims to study the methods to reduce the impact of the hilltops to the wind turbine.  Method  The numerical simulation method was applied for the the terrain with hilltop in the prevailing wind direction around the turbine site based on STAR-CCM+ software, analyzing the influence of sector management, elevating hub height and terrain optimization on the safety performance of the wind turbine.  Result  It's shown that sector management, elevating hub height and terrain optimization can improve the safety of the wind turbine. However, the method of double platform terrain optimization is more effective to improve the safety of the wind turbine for the project.  Conclusion  The results can provide reference for how to reduce the impact of upwind hilltop on the wind turbine.