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@article{Ng:2015:10.1080/00207179.2015.1068456,
author = {Ng, BF and Palacios, R and Graham, JMR},
doi = {10.1080/00207179.2015.1068456},
journal = {International Journal of Control},
pages = {15--36},
title = {Model-based aeroelastic analysis and blade load alleviation of offshore wind turbines},
url = {http://dx.doi.org/10.1080/00207179.2015.1068456},
volume = {90},
year = {2015}
}

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TY  - JOUR
AB  - Offshore wind turbines take advantage of the vast energy resource in open waters but face structural integrity challenges specific to their operating environment that require cost-effective load alleviation solutions. This paper introduces a computational methodology for model-based two- and three-dimensional design of load alleviation systems on offshore wind turbines. The aero-hydro-servoelastic model is formulated in a convenient state-space representation, coupling a multi-body composite beam description of the main structural elements with unsteady vortex-lattice aerodynamics and Morison's description of the hydrodynamics. The aerodynamics does not require empirical corrections and focuses on a control-oriented approach to the modelling. Numerical results show that through trailing-edge flaps actuated by a robust controller, more than 60% reduction in dynamic loading due to atmospheric turbulence can be achieved for the sectional model and close to 13% reduction in blade loads is obtained for the complete three-dimensional floating turbine.
AU  - Ng,BF
AU  - Palacios,R
AU  - Graham,JMR
DO  - 10.1080/00207179.2015.1068456
EP  - 36
PY  - 2015///
SN  - 1366-5820
SP  - 15
TI  - Model-based aeroelastic analysis and blade load alleviation of offshore wind turbines
T2  - International Journal of Control
UR  - http://dx.doi.org/10.1080/00207179.2015.1068456
UR  - http://hdl.handle.net/10044/1/23762
VL  - 90
ER  -

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Rafael Palacios

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