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Variable gain control scheme of DFIG-based wind farm for over-frequency support

Author

Listed:
  • Li, Yujun
  • Xu, Zhao
  • Zhang, Jianliang
  • Wong, Kit Po

Abstract

In order to mitigate over-frequency events in the power systems, this paper proposes a new variable gain based control strategy to maximize the frequency support while minimizing impacts to the overall energy production for a wind power plant (WPP). Because of different wind conditions, the energy production by each WT is not equally compromised by adaptively adjusting the droop gains according to the different rotor speeds so that minimal reduction of energy production can be ensured. The control performance was fully investigated in a doubly fed induction generator (DFIG) based WPP and the results clearly indicate the proposed variable droop gain scheme can harness more wind energy than the conventional same droop gain scheme while providing similar frequency support.

Suggested Citation

  • Li, Yujun & Xu, Zhao & Zhang, Jianliang & Wong, Kit Po, 2018. "Variable gain control scheme of DFIG-based wind farm for over-frequency support," Renewable Energy, Elsevier, vol. 120(C), pages 379-391.
    • Handle: RePEc:eee:renene:v:120:y:2018:i:c:p:379-391
    DOI: 10.1016/j.renene.2017.11.055
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    Cited by:

    1. Hui Liu & Peng Wang & Teyang Zhao & Zhenggang Fan & Houlin Pan, 2022. "A Group-Based Droop Control Strategy Considering Pitch Angle Protection to Deloaded Wind Farms," Energies, MDPI, vol. 15(8), pages 1-23, April.
    2. Ting-Hsuan Chien & Yu-Chuan Huang & Yuan-Yih Hsu, 2020. "Neural Network-Based Supplementary Frequency Controller for a DFIG Wind Farm," Energies, MDPI, vol. 13(20), pages 1-15, October.
    3. Wang, Huaizhi & Liu, Yangyang & Zhou, Bin & Voropai, Nikolai & Cao, Guangzhong & Jia, Youwei & Barakhtenko, Evgeny, 2020. "Advanced adaptive frequency support scheme for DFIG under cyber uncertainty," Renewable Energy, Elsevier, vol. 161(C), pages 98-109.
    4. Yi-Wei Chen & Yuan-Yih Hsu, 2020. "Flexible Kinetic Energy Release Controllers for a Wind Farm in an Islanding System," Energies, MDPI, vol. 13(22), pages 1-15, November.

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