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Nonlinear Current-Mode Control of SCIG Wind Turbines

Author

Listed:
  • Nicholas Hawkins

    (Engineering Fundamentals, University of Louisville, Louisville, KY 40292, USA)

  • Bhagyashri Bhagwat

    (Electrical and Computer Engineering, University of Louisville, Louisville, KY 40292, USA)

  • Michael L. McIntyre

    (Electrical and Computer Engineering, University of Louisville, Louisville, KY 40292, USA)

Abstract

In this paper, a nonlinear controller is proposed to manage the rotational speed of a full-variable Squirrel Cage Induction Generator wind turbine. This control scheme improves upon tractional vector controllers by removing the need for a rotor flux observer. Additionally, the proposed controller manages the performance through turbulent wind conditions by accounting for unmeasurable wind torque dynamics. This model-based approach utilizes a current-based control in place of traditional voltage-mode control and is validated using a Lyapunov-based stability analysis. The proposed scheme is compared to a linear vector controller through simulation results. These results demonstrate that the proposed controller is far more robust to wind turbulence than traditional control schemes.

Suggested Citation

  • Nicholas Hawkins & Bhagyashri Bhagwat & Michael L. McIntyre, 2020. "Nonlinear Current-Mode Control of SCIG Wind Turbines," Energies, MDPI, vol. 14(1), pages 1-17, December.
    • Handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:55-:d:467736
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    References listed on IDEAS

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    1. Mohamed Zribi & Muthana Alrifai & Mohamed Rayan, 2017. "Sliding Mode Control of a Variable- Speed Wind Energy Conversion System Using a Squirrel Cage Induction Generator," Energies, MDPI, vol. 10(5), pages 1-21, May.
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