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An Improved Over-Speed Deloading Control of Wind Power Systems for Primary Frequency Regulation Considering Turbulence Characteristics

Author

Listed:
  • Xiaolian Zhang

    (School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China)

  • Baocong Lin

    (School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China)

  • Ke Xu

    (School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China)

  • Yangfei Zhang

    (School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China)

  • Sipeng Hao

    (School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China)

  • Qi Hu

    (School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China)

Abstract

Wind power systems participating in primary frequency regulation have become a novel trend. In order to solve the problem of the over-speed deloading (OSD) control of wind power systems failing to provide reserved capacity for primary frequency regulation while under turbulent winds, this paper analyzes the influence mechanism of turbulence characteristics on the OSD control and the relationship between the reserve capacity of OSD control and the deloading power coefficient under turbulent wind speeds, while also quantifying the relationship between the turbulence characteristic index and deloading power coefficient. The range of the deloading power coefficient is obtained accordingly, based on which improved OSD control is proposed to dynamically optimize the deloading power coefficient according to the turbulence characteristics, which improves the frequency regulation performance of wind power systems under turbulent wind speed. According to the simulations and experimental results, the improved method proposed in this paper has good effectiveness and superiority in frequency regulation effect and rotor speed performance.

Suggested Citation

  • Xiaolian Zhang & Baocong Lin & Ke Xu & Yangfei Zhang & Sipeng Hao & Qi Hu, 2023. "An Improved Over-Speed Deloading Control of Wind Power Systems for Primary Frequency Regulation Considering Turbulence Characteristics," Energies, MDPI, vol. 16(6), pages 1-18, March.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:6:p:2813-:d:1100563
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    References listed on IDEAS

    as
    1. Liang Lu & Oscar Saborío-Romano & Nicolaos A. Cutululis, 2022. "Frequency Control in Power Systems with Large Share of Wind Energy," Energies, MDPI, vol. 15(5), pages 1-12, March.
    2. Xiaolian Zhang & Can Huang & Sipeng Hao & Fan Chen & Jingjing Zhai, 2016. "An Improved Adaptive-Torque-Gain MPPT Control for Direct-Driven PMSG Wind Turbines Considering Wind Farm Turbulences," Energies, MDPI, vol. 9(11), pages 1-16, November.
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