A simple method for modelling fatigue spectra of small wind turbine blades [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 621.832 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: p. 549-557 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 257140
• Chủ đề: 1. 17 wind energy; 2. Aeroelastic modeling; 3. Fast; 4. Simplified load model; 5. Wind energy

Tóm tắt

Small-scale wind turbines have market opportunities in distributed energy generation applications but face future challenges in remaining cost competitive compared with solar photovoltaic systems. High unit costs can be attributed to design conservatism when calculating fatigue loads of key structural components such as the blades. In this study, we use the aeroelastic software FAST to highlight limitations of the International Electrotechnical Commission 61400-2:2013 small wind turbine design standard for calculating fatigue life using the simplified load model. We present a modified method for calculating the fatigue spectra of small wind turbine blades. An advantage of this method is that it does not require complex aeroelastic simulations or field measurements. This modified method is intended to be implemented early in the blade design stage, such as during rotor optimization simulations, allowing for multiple rotor configurations to be rapidly compared.