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Navalkar, S.T. (author), Bernhammer, L.O. (author), Sodja, J. (author), Slinkman, C.J. (author), van Wingerden, J.W. (author), van Kuik, G.A.M. (author)Trailing edge aps located outboard on wind turbine blades have recently shown considerable potential in the alleviation of turbine lifetime dynamic loads. The concept of the free-oating ap is speci_cally interesting for wind turbines, on account of its modularity and enhanced control authority. Such a ap is free to rotate about its axis;...conference paper 2016
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Yu, W. (author), Simao Ferreira, C.J. (author), van Kuik, G.A.M. (author)Smart rotor emerges as an innovation technique to reduce the impact of dynamic loading on wind turbines. Local movements of distributed aerodynamic devices will enhance the non-uniformity and dynamic effects of loading, which will challenge the applicability of the blade element momentum theory (BEM) for smart rotor control design due to its...conference paper 2014
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Navalkar, S.T. (author), Van Wingerden, J.W. (author), Van Kuik, G.A.M. (author)Individual pitch control (IPC) for reducing blade loads has been investigated and proven successful in recent literature. For IPC, the multi-blade co-ordinate (MBC) transformation is used to process the blade load signals from the rotating to a stationary frame of reference. In the stationary frame of reference, the yaw error of a turbine can be...conference paper 2014
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Ashuri, T. (author), Van Bussel, G.J.W. (author), Zaayer, M.B. (author), Van Kuik, G.A.M. (author)The purpose of this paper is to integrate the controller design of wind turbines with structure and aerodynamic analysis and use the final product in the design optimization process (DOP) of wind turbines. To do that, the controller design is automated and integrated with an aeroelastic simulation tool. This integrated tool is linked with an...conference paper 2010
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Ashuri, T. (author), Van Bussel, G.J.W. (author), Zaayer, M.B. (author), Van Kuik, G.A.M. (author)A wind turbine blade has a complex shape and consists of different elements with dissimilar material properties. To do any aeroelastic simulation, the structural properties of the blade such as stiffnesses and mass per unit length should be known in advance, and extracting these properties is a difficult task. This paper presents an analytical...conference paper 2010
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Wilson, D.G. (author), Resor, B.R. (author), Berg, D.E. (author), Barlas, T.K. (author), Van Kuik, G.A.M. (author)This paper develops a system identification approach and procedure that is employed for distributed control system design for large wind turbine load reduction applications. The primary goal of the study is to identify the process that can be used with multiple sensor inputs of varying types (such as aerodynamic or structural) that can be used...conference paper 2010
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Resor, B. (author), Wilson, D. (author), Berg, D. (author), Berg, J. (author), Barlas, T. (author), Van Wingerden, J.W. (author), Van Kuik, G.A.M. (author)Active aerodynamic load control of wind turbine blades is being investigated by the wind energy research community and shows great promise, especially for reduction of turbine fatigue damage in blades and nearby components. For much of this work, full system aeroelastic codes have been used to simulate the operation of the actively controlled...conference paper 2010
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Ferreira, C. (author), Hofemann, C. (author), Dixon, K. (author), Van Kuik, G.A.M. (author), Van Bussel, G.J.W. (author)The Vertical Axis Wind Turbine, in its 2D form, is characterized by a complex unsteady aerodynamic flow, including dynamic stall and blade vortex interaction. Adding to this complexity, the 3D flow causes spanwise effects and the presence of trailing vorticity and tip vortices. The objective of the current paper is to bring insight into the 3D...conference paper 2010
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Van Kuik, G.A.M. (author), Van Zuijlen, A.H. (author)Actuator disc calculations can be divided in two categories: force models where, for a prescribed force field, the flow is calculated using a CFD method, and kinematic models, where the wake is calculated based on wake boundary conditions and the force field is known when the velocities are known. In both categories, but specifically for the...conference paper 2009
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Lackner, M.A. (author), van Kuik, G.A.M. (author)Modern wind turbines have been steadily increasing in size, and have now become very large, with recent models boasting rotor diameters greater than 120 m. Reducing the loads experienced by the wind turbine rotor blades is one means of lowering the cost of energy of wind turbines. Wind turbines are subjected to significant and rapid fluctuating...conference paper 2009
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- Sorensen, J.N. (author), Van Kuik, G.A.M. (author) conference paper 2009
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Barlas, A. (author), van Kuik, G.A.M. (author)A newly developed comprehensive aeroelastic model is used to investigate active flap concepts on the Upwind 5MW reference wind turbine. The model is specially designed to facilitate distributed control concepts and advanced controller design. Different concepts of centralized and distributed control schemes based on choices of realistic...conference paper 2009
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Simao Ferreira, C.J. (author), Dixon, K.R. (author), Hofemann, C. (author), Van Kuik, G.A.M. (author), Van Bussel, G.J.W. (author)One of the results of the development of wind energy conversion solutions for the built environment is the reappearance of Vertical Axis Wind Turbines (VAWTs). The application of wind turbines in urban environments presents design challenges driven by the complex wind fields experienced in the urban boundary layer. Urban Wind Turbines operate...conference paper 2009
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Barlas, A. (author), Van Kuik, G.A.M. (author)A newly developed comprehensive aeroelastic model is used to investigate active flap concepts on the Upwind 5MW reference wind turbine. The model is specially designed to facilitate distributed control concepts and advanced controller design. Different concepts of centralized and distributed control schemes based on choices of realistic...conference paper 2009
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- Hofemann, C. (author), Simao Ferreira, C.J. (author), Van Bussel, G.J.W. (author), Van Kuik, G.A.M. (author), Scarano, F. (author), Dixon, K.R. (author) conference paper 2008
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- Barlas, A. (author), Van Wingerden, J.W. (author), Hulskamp, A.W. (author), Van Kuik, G.A.M. (author) conference paper 2008
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- Dixon, K. (author), Simao Ferreira, C.J. (author), Hofemann, C. (author), Van Bussel, G.J.W. (author), Van Kuik, G.A.M. (author) conference paper 2008
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- Simao Ferreira, C.J. (author), Van Bussel, G.J.W. (author), Scarano, F. (author), Van Kuik, G.A.M. (author) conference paper 2008
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- Simao Ferreira, C.J. (author), Scarano, F. (author), Van Kuik, G.A.M. (author), Van Bussel, G.J.W. (author) conference paper 2007
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- Mast, E.H.M. (author), Van Kuik, G.A.M. (author), Zaayer, M.B. (author) conference paper 2007