Unconventional Rotor Power Response to Yaw Error Variations

The Science of Making Torque from Wind 2012

Schreck, S.J.^1 ; Schepers, J.G.^2

NREL's National Wind Technology Center, United States^1

Energy Research Center of the Netherlands, Netherlands^2

关键词: Blade aerodynamic;    Dynamic interaction;    Error variation;    Inflow conditions;    Rotor power;    Unsteady effects;    Wind turbine power;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/555/1/012001/pdf
DOI  :  10.1088/1742-6596/555/1/012001

来源: IOP

【 摘 要 】

Continued inquiry into rotor and blade aerodynamics remains crucial for achieving accurate, reliable prediction of wind turbine power performance under yawed conditions. To exploit key advantages conferred by controlled inflow conditions, EU-JOULE DATA Project and UAE Phase VI experimental data were used to characterize rotor power production under yawed conditions. Anomalies in rotor power variation with yaw error were observed, and the underlying fluid dynamic interactions were isolated. Unlike currently recognized influences caused by angled inflow and skewed wake, which may be considered potential flow interactions, these anomalies were linked to pronounced viscous and unsteady effects.