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Smart Rotor Modeling : Aero-Servo-Elastic Modeling of a Smart Rotor with Adaptive Trailing Edge Flaps / by Leonardo Bergami
Resource type: Ressourcentyp: Buch (Online)Book (Online)Language: English Series: Research Topics in Wind Energy ; 3 | SpringerLink BücherPublisher: Cham ; s.l. : Springer International Publishing, 2014Description: Online-Ressource (X, 156 p. 72 illus., 60 illus. in color, online resource)ISBN:- 9783319073651
- 621.042
- TJ807-830
Contents:
Summary: A smart rotor is a wind turbine rotor that, through a combination of sensors, control units and actuators actively reduces the variation of the aerodynamic loads it has to withstand. Smart rotors feature a promising load alleviation potential, and might provide the technological breakthrough required by the next generation of large wind turbine rotors. The book presents the aero-servo-elastic model of a smart rotor with Adaptive Trailing Edge Flaps for active load alleviation, and provides an insight on the rotor aerodynamic, structural, and control modeling. A novel model for the unsteady aerodynamics of an airfoil section with flap is presented, and coupled with a multi-body structural representation. A smart rotor configuration is proposed, where the Adaptive Trailing Edge Flaps extend along the outer 20 % of the blade span. Linear Quadratic and Model Predictive algorithms are formulated to control the flap deflection. The potential of the smart rotor is finally confirmed by simulations in a turbulent wind field. A significant reduction of the fatigue loads on the blades is reported: the flaps, which cover no more than 1.5 % of the blade surface, reduce the fatigue load by 15 %; a combination of flap and individual pitch control allows for fatigue reductions up to 30 %PPN: PPN: 1657934012Package identifier: Produktsigel: ZDB-2-ENE
IntroductionSimulation Environment -- Load Analysis -- ATEFlap Aerodynamic Model -- Adaptive Trailing Edge Flap placement -- Preliminary evaluation with feed-forward cyclic control -- Model Based control algorithms for a rotor with ATEF -- Summary of findings and future work -- Conclusion.
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