Effects of Changing Atmospheric Conditions on Wind Turbine Performance (Poster) [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 621.823 Shafts
• Thông tin xuất bản: Golden, Colo. : Oak Ridge, Tenn. : National Renewable Energy Laboratory (U.S.) ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2012
• Mô tả vật lý: Size: 1 pg. : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 259016
• Chủ đề: 1. 17 wind energy; 2. Annualized energy production; 3. Turbulence; 4. Wind resource assessment; 5. Wind turbine

Tóm tắt

Multi-megawatt, utility-scale wind turbines operate in turbulent and dynamic winds that impact turbine performance in ways that are gradually becoming better understood. This poster presents a study made using a turbulent flow field simulator (TurbSim) and a Turbine aeroelastic simulator (FAST) of the response of a generic 1.5 MW wind turbine to changing inflow. The turbine power output is found to be most sensitive to wind speed and turbulence intensity, but the relationship depends on the wind speed with respect to the turbine's rated wind speed. Shear is found to be poorly correlated to power. A machine learning method called 'regression trees' is used to create a simple model of turbine performance that could be used as part of the wind resource assessment process. This study has used simple flow fields and should be extended to more complex flows, and validated with field observations.