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Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
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Preprints
https://doi.org/10.5194/wes-2018-27
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-2018-27
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

  26 Apr 2018

26 Apr 2018

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This preprint was under review for the journal WES but the revision was not accepted.

Optimal Output Feedback H Torque Control of a Wind Turbine Rotor using a Parametrically Scheduled Model

Dana Martin1, Kathryn Johnson1, Christopher Bay1,2, Daniel Zalkind2, Lucy Pao2, Meghan Kaminski3, and Eric Loth3 Dana Martin et al.
  • 1Colorado School of Mines Golden, CO 80401
  • 2University of Colorado Boulder, CO 80309
  • 3University of Virginia, VA 22904

Abstract. Wind turbines are nonlinear, time-varying systems that are subject and sensitive to model parameter variations and a stochastic wind field. For such applications, Linear Parameter Varying (LPV) control provides a state-space approach to designing nonlinear controllers with robust performance. LPV uses multi-input multi-output (MIMO) model with a guaranteed limit on the exogenous disturbance's gain with respect to performance signals. A robust matrix inequality synthesis of an H based performance LPV controller using a parametrically varying model will be developed with the goal of obtaining a torque controller with drive-train damping properties. The technique guarantees a-priori performance values and closed-loop stability for the simplified model, and provides a systematic tuning procedure to adjust controller performance.

Dana Martin et al.

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Status: closed
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Dana Martin et al.

Dana Martin et al.

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Latest update: 02 Dec 2020
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Short summary
The paper provides an account of the synthesis of a Linear Parameter Varying (LPV) controller and its improved performance as applied to a down-wind, two bladed, per-aligned rotor. The analysis of controller performance during a turbulent inflow with a mean wind speed of 4 m/s show increased performance in terms of better tip speed ratio tracking and reduced fatigue damage to various turbine components. The results provide a basis of LPV control and its ability to increase turbine lifetime.
The paper provides an account of the synthesis of a Linear Parameter Varying (LPV) controller...
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