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Aeroelastic design and LPV modelling of an experimental wind turbine blade equipped with free-floating flaps [Elektronski vir]Navalkar, Sachin T. ...Trailing edge flaps located outboard on wind turbine blades have recently shownconsiderable potential in the alleviation of turbine lifetime dynamic loads. The concept of thefree-floating flap is ... specifically interesting for wind turbines, on account of its modularity andenhanced control authority. Such a flap is free to rotate about its axis; camberline control of thefree-floating flap allows for aeroelastic control of blade loads. This paper describes the design ofa scaled wind turbine blade instrumented with free-floating flaps, intended for use in wind tunnelexperiments. The nature of the flap introduces a coupled form of flutter due to the aeroelasticcoupling of flap rigid-body and blade out-of-plane modes; for maximal control authority it isdesired to operate close to the flutter limit. Analytical and numerical methods are used toperform a flutter analysis of the turbine blade. It is shown that the potential flow aeroelasticmodel can be recast as a continuous-time Linear-Parameter-Varying (LPV) state space modelof a low order, for which formal controller design methodologies are readily available.Source: The science of making torque from wind (TORQUE 2016), between 5th and 7th of October, Munich [Elektronski vir] (Vol. 753, no. 4, 2016, F. 1-11)Type of material - conference contributionPublish date - 2016Language - englishCOBISS.SI-ID - 32001539
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Navalkar, Sachin T. | |
Bernhammer, Lars O. | |
Sodja, Jurij | 29620 |
Slinkman, C. J. | |
Wingerden, Jan-Willem van | |
Kuik, Gijs A. M. van |
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