An Unsteady Actuator Line Solver to Enable Adjoint Sensitivity Studies for Wake Steering [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 621.521 Applied physics
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2020
• Mô tả vật lý: Size: Article No. 042038 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 257158
• Chủ đề: 1. 17 wind energy; 2. 42 engineering; 3. Blade design; 4. Wake steering; 5. Wind turbine

Tóm tắt

This study demonstrates the sensitivity of wind turbine wake steering performance to blade design. An actuator line model was implemented within an unsteady adjoint solver that enables efficient execution of gradient-based optimization and sensitivity studies. After first confirming the feasibility of wake steering by controlling actuator line chord profiles and formulating a suitable objective function for wake position, a sensitivity study was conducted to determine the relative importance of chord length as a function of spanwise position on the resulting turbine wake deflection. The results presented here support the idea that blade design choices play a role in wake control. In a larger context, this study demonstrates a computational framework in which turbine and blade designs can be studied at the individual and farm-wide level to enhance wind plant controllability and manage power output.