Wind turbine power curve prediction with consideration of rotational augmentation effects

Wind turbine power curve prediction with consideration of rotational augmentation effects
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考虑旋转增强效应的风力发电机功率曲线预测

DOI:
10.1088/1757-899x/161/1/012007
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发表时间:
2016-11
期刊:
Materials Science and Engineering
影响因子:
--
通讯作者:
Ruitao Peng
Ruitao Peng
中科院分区:
其他
文献类型:
--
作者:
Xinzi Tang;Xuanqing Huang;Songfeng Sun;Ruitao Peng

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风力涡轮机功率曲线表示转子功率与轮毂风速之间的关系。涡轮机功率曲线预测对于功率控制和风能管理具有重要意义。为了预测功率曲线,叶素矩(BEM)方法在学术界和工业界都被使用。由于风洞试验中测得的攻角范围有限以及旋转涡轮机中的三维(3D)旋转增强效应,风力涡轮机功率曲线预测仍然是一个挑战,特别是在高风速下。本文提出了一种研究考虑旋转增力效应的特征升力和阻力系数的三维计算流体动力学(CFD)模拟耦合在边界元法。编制了Matlab程序实现数值计算。预测的功率输出与NREL第六阶段风力涡轮机测量值进行了比较。结果表明,耦合方法提高了涡轮机功率曲线的预测。
Wind turbine power curve expresses the relationship between the rotor power and the hub wind speed. Wind turbine power curve prediction is of vital importance for power control and wind energy management. To predict power curve, the Blade Element Moment (BEM) method is used in both academic and industrial communities. Due to the limited range of angles of attack measured in wind tunnel testing and the three-dimensional (3D) rotational augmentation effects in rotating turbines, wind turbine power curve prediction remains a challenge especially at high wind speeds. This paper presents an investigation of considering the rotational augmentation effects using characterized lift and drag coefficients from 3D computational fluid dynamics (CFD) simulations coupled in the BEM method. A Matlab code was developed to implement the numerical calculation. The predicted power outputs were compared with the NREL Phase VI wind turbine measurements. The results demonstrate that the coupled method improves the wind turbine power curve prediction.
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