Assessment of Wind Turbine Component Loads Under Yaw-Offset Conditions
| Autor: | Katherine Dykes, Jennifer Annoni, Jeroen van Dam, Rick Damiani, Jason Roadman, Scott Dana, Paul Fleming |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
Airfoil Offset (computer science) Renewable Energy Sustainability and the Environment Rotor (electric) business.industry 020209 energy lcsh:TJ807-830 lcsh:Renewable energy sources Energy Engineering and Power Technology 02 engineering and technology Aerodynamics Structural engineering Inflow Wake Aeroelasticity 01 natural sciences Turbine 010305 fluids & plasmas law.invention law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering business |
| Zdroj: | Wind Energy Science, Vol 3, Pp 173-189 (2018) |
| ISSN: | 2366-7451 |
| DOI: | 10.5194/wes-2017-38 |
| Popis: | Renewed interest in yaw control for wind turbine and power plants for wake redirection and load mitigation demands a clear understanding of the effects of running with skewed inflow. In this paper, we investigate the physics of yawed operations, building up the complexity from a simplified analytical treatment to more complex aeroelastic simulations. Results in terms of damage equivalent loads (DELs) and extreme loads under operating, misaligned conditions are compared to data collected from an instrumented, utility-scale wind turbine. The analysis shows that multiple factors are responsible for the DELs of the various components, and that airfoil aerodynamics, elastic characteristics of the rotor, and turbulence intensities are the primary drivers. Both fatigue and extreme loads are observed to have relatively complex trends with yaw offsets, which can change depending on the wind-speed regime. Good agreement is found between predicted and measured trends for both fatigue and ultimate loads. |
| Databáze: | OpenAIRE |
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