Unconventional Rotor Power Response to Yaw Error Variations

Journal Article · Tue Dec 16 00:00:00 EST 2014 · Journal of Physics. Conference Series

DOI:https://doi.org/10.1088/1742-6596/555/1/012001· OSTI ID:1220616

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

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1. National Renewable Energy Lab. (NREL), Golden, CO (United States). National Wind Technology Center
2. Energy Research Center of the Netherlands (ERC), Petten (Netherlands)

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, we used EU-JOULE DATA Project and UAE Phase VI experimental data 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.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
• Grant/Contract Number: AC36-08GO28308
• OSTI ID: 1220616
• Report Number(s): NREL/JA-5000-62544
• Journal Information: Journal of Physics. Conference Series, Vol. 555, Issue 1; Related Information: Journal of Physics: Conference Series; ISSN 1742-6588
• Publisher: IOP Publishing
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
wind turbine rotors
blade aerodynamics
turbine power performance
NREL