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Coordinated Control Strategy for a Hybrid Wind Farm with DFIG and PMSG under Symmetrical Grid Faults

Author

Listed:
  • Jiawei Li

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China)

  • Jun Yao

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China)

  • Xin Zeng

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China)

  • Ruikuo Liu

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China)

  • Depeng Xu

    (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China)

  • Caisheng Wang

    (Department of Electrical and Computer Engineering, Wayne State University, Detroit, MI 48202, USA)

Abstract

This paper presents a coordinated control strategy for a hybrid wind farm with doubly-fed induction generator (DFIG)- and direct-driven permanent-magnet synchronous generator (PMSG)-based wind turbines under symmetrical grid faults. The proposed low-voltage ride-through (LVRT) strategy is based on a novel current allocation principle and is implemented for individual DFIG- or PMSG-based wind turbines. No communication equipment between different wind power generators is required. By monitoring the local voltages and active power outputs of the corresponding wind generators, the proposed control strategy can control the hybrid wind farm to provide the maximum reactive power to support the grid voltage during a symmetrical grid fault. As a result, the reduction in the active power output from the hybrid wind farm can be decreased, which also helps avoid generator over-speed issues and supply active power support for the power grid. In addition, the reactive current upper limits of DFIG- and PMSG-based sub-wind farms are investigated by considering different active power outputs and different grid voltage dip depths, and the feasible regions of the two types of sub-wind farms for meeting the LVRT requirements are further studied. Finally, the effectiveness of the proposed coordinated LVRT control strategy for the hybrid wind farm is validated by simulation and experimental results.

Suggested Citation

  • Jiawei Li & Jun Yao & Xin Zeng & Ruikuo Liu & Depeng Xu & Caisheng Wang, 2017. "Coordinated Control Strategy for a Hybrid Wind Farm with DFIG and PMSG under Symmetrical Grid Faults," Energies, MDPI, vol. 10(5), pages 1-21, May.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:5:p:669-:d:98291
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    References listed on IDEAS

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    1. Zhong Zheng & Geng Yang & Hua Geng, 2013. "Coordinated Control of a Doubly-Fed Induction Generator-Based Wind Farm and a Static Synchronous Compensator for Low Voltage Ride-through Grid Code Compliance during Asymmetrical Grid Faults," Energies, MDPI, vol. 6(9), pages 1-22, September.
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    Cited by:

    1. Zhen Xie & Lifan Niu & Xing Zhang, 2018. "An Enhanced Control Strategy for Doubly-Fed Induction Generators Based on a Virtual Harmonic Resistor and Capacitor under Nonlinear Load Conditions," Energies, MDPI, vol. 11(10), pages 1-18, October.
    2. Yao, Jun & Pei, Jinxin & Xu, Depeng & Liu, Ruikuo & Wang, Xuewei & Wang, Caisheng & Li, Yu, 2018. "Coordinated control of a hybrid wind farm with DFIG-based and PMSG-based wind power generation systems under asymmetrical grid faults," Renewable Energy, Elsevier, vol. 127(C), pages 613-629.
    3. Jiawei Huang & Honghua Wang & Chong Wang, 2017. "Passivity-Based Control of a Doubly Fed Induction Generator System under Unbalanced Grid Voltage Conditions," Energies, MDPI, vol. 10(8), pages 1-13, August.

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