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为解决传统的水平轴风力涡轮设计与性能预估方法存在失速延迟现象的问题 ,以三维边界层积分方程为理论基础 ,分析讨论了产生这种现象的原因 ,并得到了决定叶片表面气流分离点位置的关键影响参数 ,以及参数的作用范围和量级。在分离因子模型的基础上 ,建立了风力涡轮设计与性能预估方法的三维失速延迟修正模型 ,该模型由二个关键影响参数 ( s/ r,Ω r/ u∞ )和三个与实测数据相关的经验修正因子 ( a、b、d)组成。通过与三个典型风力涡轮的实测结果对比 ,表明得到的叶片升力系数和功率输出符合很好 ,证明失速延迟修正模型有效适用 ,解决了原方法不适用于高风速工况的问题 ,提高了水平轴风力涡轮设计和性能预估水平。
In order to solve the problem of stalling delay in traditional horizontal axis wind turbine design and performance prediction, the reason of this phenomenon is analyzed and discussed based on the three-dimensional boundary layer integral equation. The location of the key impact parameters, as well as the parameters of the scope and magnitude. Based on the separation factor model, a three-dimensional stall delay correction model for wind turbine design and performance prediction is established. The model consists of two key influence parameters (s / r, Ω r / u∞) and three correlations with measured data Correlated empirical correction factors (a, b, d). Compared with the measured results of three typical wind turbines, it is found that the obtained lift coefficient and power output of the wind turbine are in good agreement. It is proved that the stall delay correction model is effective and applicable, and the problem that the original method is not suitable for high wind speed conditions is solved, Axle Wind Turbine Design and Performance Estimate Level.