Aerodynamics Design And Parametric Modeling Of Horizontal Axis Wind Turbine

With the reduction of conventional fossil energy and further deterioration of ecological environment, as well as the continuously lower cost of wind energy, countries have stepped up efforts to develop wind power. Wind turbine blade, as the key components for wind power, impact the efficiency of wind power utilization and the turbine's load directly, which also determines the overall performance of the turbine and utilization of wind power. Therefore, the wind turbine blade design, including the aerodynamic design and structural design, palys an important part role in the wind turbine design. Aerodynamic performance calculation provides evaluation and feedback for the aerodynamic design and also the aerodynamic load data for the structural design of blade. The accuracy of aerodynamic performance calculation directly influences the aerodynamic performance and structural safety of blade.Main contents of this thesis are described as the following:1. Based on the aerodynamic theory of wind turbine, Glauert vortex theoretical model was adopted for wind turbine blade design and also the calculating program.2. After point data on each cross-section was calculated, UG secondary development technology was used to develop an automatic three-dimensional modeling system for the blade, which improved the efficiency of the modeling greatly.3.Based on aerodynamic design calculation program, comparatively analysis for various aerodynamic design results was given under different angle of attack in the design process. 4. Based on the procedure(National Renewable Energy Association), wind turbine performance was calculated for evaluation under different angle of attack in the design process.