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Individual pitch control of horizontal-axis wind turbines

Sandquist, Fredrik and Moe, Geir and Anaya-Lara, Olimpo (2012) Individual pitch control of horizontal-axis wind turbines. Journal of Offshore Mechanics and Arctic Engineering, 134 (3). ISSN 0892-7219

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Abstract

An individual pitch controller (IPC) based on the multivariable Linear Quadratic Gaussian (LQG) concept is presented to reduce loads in megawatt-size wind turbines. Most turbines currently installed use collective pitch control to pitch the blades in order to limit the excess of wind power and to regulate the rotor speed above rated conditions. However, research has shown that IPC control is much more effective to reduce blade loads. Both collective and individual pitch control are implemented for the NREL 5 MW reference turbine. Simulation results are used to illustrate the advantage of the IPC approach, and its ability to reduce much of the flap-wise blade motion is demonstrated.

Item type: Article
ID code: 35222
Keywords: horizontal-axis wind turbines , wind turbines , pitch control, individual, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 26 Oct 2011 15:20
    Last modified: 14 May 2012 17:01
    URI: http://strathprints.strath.ac.uk/id/eprint/35222

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