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Frequency Response Improvement of PMSG Wind Turbines Using a Washout Filter

Author

Listed:
  • Parisa M. Shabestari

    (School of Electrical Engineering and Computer Science, Washington State University, Pullman, WA 99164, USA)

  • Ali Mehrizi-Sani

    (Bradley Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA 24061, USA)

Abstract

High integration of renewable energy resources, such as wind turbines, to the power grid decreases the power system inertia. To improve the frequency response of a low-inertia system, virtual inertia approach can be used. This letter proposes a control method to decrease the frequency transients and restore frequency to its nominal value. A wind turbine usually works based on maximum power point tracking (MPPT) curves to achieve the maximum power. In this letter, the proposed controller uses a non-MPPT method to leave power for frequency regulation during transients. Moreover, it uses a washout filter-based method to remove the steady-state error in the frequency. Simulation results in the PSCAD environment validate the improved performance of the proposed method during load changes by comparing it with the MPPT and non-MPPT methods.

Suggested Citation

  • Parisa M. Shabestari & Ali Mehrizi-Sani, 2020. "Frequency Response Improvement of PMSG Wind Turbines Using a Washout Filter," Energies, MDPI, vol. 13(18), pages 1-7, September.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:18:p:4797-:d:413425
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