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To address the issues where current frequency control strategies for wind turbine (WT) cannot fully utilize the rotor kinetic energy to support grid frequency and the secondary drop of frequency caused by rotor speed recovery, this research proposes an adaptive frequency control scheme (AFC) for DFIG wind turbines considering smooth rotor speed recovery. During the rotor speed recovery stage, a linear decay function is used to gradually reduce the control coefficient to zero within a set time, achieving controllable rotor speed recovery while eliminating the secondary impact on frequency due to rotor speed recovery. Finally, the effectiveness of the proposed AFC scheme is validated through the EMTP-RV software, constructing a power system model of IEEE 4-machine two-area system.

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Adaptive Frequency Regulation Strategy for DFIG Wind Turbines Considering Smooth Rotor Speed Recovery

  • 会议论文

  • 发表日期：

    2025年

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  • Zhiguo Wang,
  • Zhilong Yin,
  • Feng Yu,
  • Shuo Ni,
  • Pan Gao

摘要

To address the issues where current frequency control strategies for wind turbine (WT) cannot fully utilize the rotor kinetic energy to support grid frequency and the secondary drop of frequency caused by rotor speed recovery, this research proposes an adaptive frequency control scheme (AFC) for DFIG wind turbines considering smooth rotor speed recovery. During the rotor speed recovery stage, a linear decay function is used to gradually reduce the control coefficient to zero within a set time, achieving controllable rotor speed recovery while eliminating the secondary impact on frequency due to rotor speed recovery. Finally, the effectiveness of the proposed AFC scheme is validated through the EMTP-RV software, constructing a power system model of IEEE 4-machine two-area system.