Abstract
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; camberline control of the free-oating ap allows for aeroelastic control of blade loads. This paper describes the design of a scaled wind turbine blade instrumented with free-oating aps, intended for use in wind tunnel experiments. The nature of the ap introduces a coupled form of utter due to the aeroelastic coupling of ap rigid-body and blade out-of-plane modes; for maximal control authority it is desired to operate close to the utter limit. Analytical and numerical methods are used to perform a utter analysis of the turbine blade. It is shown that the potential ow aeroelastic model can be recast as a continuous-time Linear-Parameter-Varying (LPV) state space model of a low order, for which formal controller design methodologies are readily available.
Original language | English |
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Title of host publication | Journal of Physics: Conference Series |
Subtitle of host publication | TORQUE 2016: The Science of Making Torque from Wind |
Editors | E. Bossanyi et al |
Place of Publication | Bristol, UK |
Publisher | IOP Publishing |
Number of pages | 11 |
Volume | 753 |
Edition | C. Aeroservoelasticity, loads, structures and materials |
DOIs | |
Publication status | Published - 2016 |
Event | TORQUE 2016: 6th International Conference "The Science of Making Torque from Wind" - Technische Universität München (TUM), Campus Garching, Munich, Germany Duration: 5 Oct 2016 → 7 Oct 2016 https://www.events.tum.de/?sub=29 |
Publication series
Name | Journal of Physics: Conference Series |
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Publisher | IOP Publishing |
Number | C. Aeroservoelasticity, loads, structures and materials |
Volume | 753 |
ISSN (Print) | 1742-6588 |
ISSN (Electronic) | 1742-6596 |
Conference
Conference | TORQUE 2016: 6th International Conference "The Science of Making Torque from Wind" |
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Country/Territory | Germany |
City | Munich |
Period | 5/10/16 → 7/10/16 |
Internet address |