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Energy International Joint Research Project
1. Research Needs
Through international joint research, we have acquired the latest Bend-Twist Coupled blade design technology
To provide the world's best blades design technology in Korea
To promote the international level of renewable energy technology through international joint research .
2. Purpose and Goal
Development of manual control bending - torsion soft blade technology
- Bending through shape or material coupling - Development of technology to achieve blade loading through Feathering or Stall through torsional ductility
- Reduce CAPEX and increase production power by reducing the blade through bending - twist ductility
- Development of new blade design to induce bending - Torsional ductility by simultaneous coupling of shape and material
-100 kW system, and based on this, mega-watt system application method is presented through the development of scaling technique
3. R & D Direction and Goals
Establishment of reference model
ㅇ Construction and measurement of 100 kW wind turbine as a comparison standard
- Measures of comparison, such as load , power , rotational speed , pitch angle , blade tip deformation
- Load measurement such as blade root bending moment , tower bending moment, etc.
ㅇ Numerical model design of 100kw standard wind turbine generator
- Perform numerical aerodynamic design for 100kW model which is a comparison standard.
- Perform multidisciplinary optimal design that simultaneously performs aerodynamic design , structural design , and aeroelastic design for numerical model development .
BTC blade numerical design
ㅇ Shape-guided design of blade BTC ductile deformation
- Application of geometric soft induction technique such as Swept blade
- bending - angle-of - Is the Is-through the Attack Is the Is Is Is Is Is Is the Is the torsional ductility (Is Is Is Is the Is the Is the of the Attack Angle) Is Is Is Is the AMOUNT of Power Produced Due to Reduction of Is Is Is Is the ( Power) performed Aerodynamic Design to Minimize Ares Is Is the Reduction in
- Ensures sufficient structural stiffness to prevent collision with the tower, and in particular, minimizes fatigue load by bending.
ㅇ Material-induced design of ductile deformation of blade BTC
- Tailoring of composite blades using fiberglass GFRP , carbon fiber CFRP and two fibers simultaneously
- Study on the design of the unbraded cross section and the longitudinal direction through the change of the lamination angle of the composite material to induce BTC ductile deformation
- Research to prevent reduction of structural stiffness in bending spindle by ductile deformation induction
ㅇ Simultaneous consideration of shape and material of BTC ductile deformation Hybrid design method
- Simplifies the mutual disadvantages by simultaneously considering ductile deformation by shape and material properties and effectively enhancing the effect of BTC deformation
- Design Parameters Study ( quantitative analysis )
Verification by comparison
ㅇ Static test for 100kW BTC blade
- Fabrication of 100kW thread scale BTC blade based on WP2 design
- Design verification by measurement of blade weight , natural frequency , structural damping coefficient , ductility effect of bending - torsion through static load test
ㅇ 100kw thread scale field measurement and dynamic experiment
- Perform static experiments by installing static scale BTC blade thread scale on 100kw system
- Power , pitch angle , rotational speed , bending deformation , and torsional deformation are measured through ultrasonic sensors , strain gages, etc.
Concept validation
ㅇ Comparison of numerical analysis results and test results
- Comparison of numerical analysis results between reference system and BTC mounting system
- Numerical analysis results of BTC mounting system and comparison with measured values of empirical system
ㅇ Economic evaluation
- Is Is the price Is the the Total Is Is the Deduction Considering Is the the Load Reduction System -Is Is the Is the the Comparison of Development Is Is the System's possible with Is Is Is Is Is the target The The The price Is Is the price in market-Economic Research an an Analysis an Is the the Apply to Is The Is Is The Actual
- Comparison with reference system considering LCOE
Contact
- Assignment responsibility: Kim Hyun-cheol captain_fe@kaist.ac.kr
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