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Research on Double-Fed Induction Generator Low Voltage Ride Through Based on Double Braking Resistors Using Fuzzy Control

Author

Listed:
  • Hao Dong

    (School of Electrical Engineering and Automation, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, China)

  • Hongbin Wu

    (School of Electrical Engineering and Automation, Hefei University of Technology, No. 193 Tunxi Road, Hefei 230009, China)

  • Jing Pan

    (State Grid Anhui Electric Power Co., Ltd., Hefei 230061, China)

  • Yu Chen

    (State Grid Anhui Electric Power Co., Ltd., Hefei 230061, China)

  • Bin Xu

    (State Grid Anhui Electric Power Co., Ltd., Hefei 230061, China)

Abstract

The stator side of a double-fed induction generator (DFIG) is directly connected to the grid, so the DFIG is sensitive to a voltage drop caused by power system faults. A double resistors braking method based on fuzzy control is proposed to improve the performance of low-voltage ride through (LVRT) in this paper. Based on the mathematical model of DFIG, it analyzes the function of a series dynamical braking resistor (SDBR) theoretically. The series impedance value of the SDBR is determined by the variation of the rotor’s open circuit voltage, the voltage and current of the stator and the rotor, and also the heat capacity of the SDBR. In order to improve the LVRT capability of a DFIG under different fault grads, a double series resistors braking mode is presented. Through adopting a fuzzy control strategy, double series resistor switching is implemented. With the example system, the correctness and validity of the proposed method is verified.

Suggested Citation

  • Hao Dong & Hongbin Wu & Jing Pan & Yu Chen & Bin Xu, 2018. "Research on Double-Fed Induction Generator Low Voltage Ride Through Based on Double Braking Resistors Using Fuzzy Control," Energies, MDPI, vol. 11(5), pages 1-16, May.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:5:p:1155-:d:144754
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    References listed on IDEAS

    as
    1. Zaijun Wu & Chanxia Zhu & Minqiang Hu, 2013. "Improved Control Strategy for DFIG Wind Turbines for Low Voltage Ride Through," Energies, MDPI, vol. 6(3), pages 1-17, February.
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    Cited by:

    1. M. R. Shafiee & H. Shahbabaei Kartijkolaie & M. Firouzi & S. Mobayen & A. Fekih, 2020. "A Dynamic Multi-Cell FCL to Improve the Fault Ride through Capability of DFIG-Based Wind Farms," Energies, MDPI, vol. 13(22), pages 1-14, November.

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