2020
DOI: 10.3390/en13051029
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Sliding Mode Control of Active Trailing-Edge Flap Based on Adaptive Reaching Law and Minimum Parameter Learning of Neural Networks

Abstract: Theoretical modeling and the sliding mode control (SMC) of an active trailing-edge flap of a wind turbine blade based on the adaptive reaching law are investigated. The blade is a single-celled thin-walled composite structure using circumferentially asymmetric stiffness (CAS) design, exhibiting displacements of flap-wise/twist coupling. A reduced structural model originated from the variation method is used to model the structure of the blade, the structural damping of which is computed. The trailing-edge flap… Show more

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Cited by 4 publications
(5 citation statements)
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“…DFIG generators provide access to the rotor windings and regulating the rotor voltage, the generator active and reactive powers are fully controllable. Therefore, the design and implementation of a new control scheme for a DFIG based wind turbine system has attracted the attention of several authors in the last years [8][9][10][11][12].…”
Section: Introductionmentioning
confidence: 99%
“…DFIG generators provide access to the rotor windings and regulating the rotor voltage, the generator active and reactive powers are fully controllable. Therefore, the design and implementation of a new control scheme for a DFIG based wind turbine system has attracted the attention of several authors in the last years [8][9][10][11][12].…”
Section: Introductionmentioning
confidence: 99%
“…In this section, based on the structural characteristics of the blade, we develop the equivalent model to obtain the frequency characteristics of the main body of the blade, instead of the previous method of directly giving the natural frequency value. 3,4,[33][34][35] This processing method is because the structural form of the blade has a major impact on the natural frequency, and it is closer to the actual situation.…”
Section: Solution Of Blade Natural Frequencies Based On Green's Function Methodsmentioning
confidence: 99%
“…However, due to the complexity of the new structure, it is necessary to develop corresponding analysis and vibration observation methods, which is also the key to verify the effectiveness of the new structure. 4 Because of the complexity of blade with varying airfoil and the high cost of the experiment, direct aerodynamic experiments and the accurate FEM (Finite Element Method) simulations for the blades of a complete wind turbine are more expensive and hard to realize. 5 For the former, it is difficult to develop and establish corresponding test sites as the large size of the wind turbine blades; for the latter, the geometry is a gradient with the blade units, and the division of the FEM mesh units requires careful design, 6 which still needs non-negligible of computational cost.…”
Section: Introductionmentioning
confidence: 99%
“…The characteristics of these robots are designed and embodied as ingenuity of structure with small size, simple motion, complete function and high reliability. The source of driving of these robots is often realized by pneumatic transmission and hydraulic transmission that just can match the control performance of PLC perfectly [5][6]. In the present study, a pneumatic manipulator used for loading and unloading sheet material is designed, with its stability analyzed.…”
Section: Introductionmentioning
confidence: 99%