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Comprehensive Reactive Power Support of DFIG Adapted to Different Depth of Voltage Sags

Author

Listed:
  • Yangwu Shen

    (Sate Grid Hunan Electric Power Corporation Research Institute, Changsha, Hunan 410007, China)

  • Mingjian Cui

    (Department of Mechanical Engineering, University of Texas at Dallas, Richardson, TX 75080, USA)

  • Qin Wang

    (Electric Power Research Institute, Palo Alto, CA 94304, USA)

  • Feifan Shen

    (School of Electrical Engineering, Wuhan University, Wuhan, Hubei 430072, China)

  • Bin Zhang

    (Sate Grid Hunan Electric Power Corporation Research Institute, Changsha, Hunan 410007, China)

  • Liqing Liang

    (Sate Grid Hunan Electric Power Corporation Research Institute, Changsha, Hunan 410007, China)

Abstract

The low voltage ride-through (LVRT) capability of the doubly-fed induction generator (DFIG) significantly impacts upon the integration of wind power into the power grid. This paper develops a novel comprehensive control strategy to enhance the LVRT and reactive power support capacities of the DFIG by installing the energy storage system (ESS). The ESS is connected to the DC-link capacitor of the DFIG and used to regulate the DC-link voltage during normal or fault operations. The unbalanced power between the captured wind power and the power injected to the grid during the transient process is absorbed or compensated by the ESS. The rotor-side converter (RSC) is used to control the maximum power production and the grid-side converter (GSC) is used to control the reactive power before participating in the voltage support. When the supply voltage continues to drop, the rotor speed is increased by controlling the RSC to realize the LVRT capability and help the GSC further enhance the reactive power support capability. The capacity of the GSC is dedicated to injecting the reactive power to the grid. An auxiliary transient pitch angle controller is proposed to protect the generator’s over speed. Both RSC and GSC act as reactive power sources to further enhance the voltage support capability with serious voltage sags. Simulations based on a single-machine infinite-bus power system verify the effectiveness of the developed comprehensive control strategy.

Suggested Citation

  • Yangwu Shen & Mingjian Cui & Qin Wang & Feifan Shen & Bin Zhang & Liqing Liang, 2017. "Comprehensive Reactive Power Support of DFIG Adapted to Different Depth of Voltage Sags," Energies, MDPI, vol. 10(6), pages 1-20, June.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:6:p:808-:d:101482
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    References listed on IDEAS

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    1. Jun Yao & Qing Li & Zhe Chen & Aolin Liu, 2013. "Coordinated Control of a DFIG-Based Wind-Power Generation System with SGSC under Distorted Grid Voltage Conditions," Energies, MDPI, vol. 6(5), pages 1-21, May.
    2. Yanzhe Hu & Yang Li & Mengjie Xu & Li Zhou & Mingjian Cui, 2017. "A Chance-Constrained Economic Dispatch Model in Wind-Thermal-Energy Storage System," Energies, MDPI, vol. 10(3), pages 1-21, March.
    3. Jian Zhang & Mingjian Cui & Hualiang Fang & Yigang He, 2016. "Smart Charging of EVs in Residential Distribution Systems Using the Extended Iterative Method," Energies, MDPI, vol. 9(12), pages 1-21, November.
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    Cited by:

    1. Di Zheng & Jinxin Ouyang & Xiaofu Xiong & Chao Xiao & Mengyang Li, 2018. "A System Transient Stability Enhancement Control Method Using Doubly Fed Induction Generator Wind Turbine with Considering Its Power Constraints," Energies, MDPI, vol. 11(4), pages 1-14, April.
    2. Sharma, Akanksha & Jain, Sanjay K., 2021. "Day-ahead optimal reactive power ancillary service procurement under dynamic multi-objective framework in wind integrated deregulated power system," Energy, Elsevier, vol. 223(C).
    3. Hwanik Lee & Moonsung Bae & Byongjun Lee, 2017. "Advanced Reactive Power Reserve Management Scheme to Enhance LVRT Capability," Energies, MDPI, vol. 10(10), pages 1-15, October.
    4. Zhongyi Li & Shiji Tian & Yefei Zhang & Hui Li & Min Lu, 2019. "Active Control of Drive Chain Torsional Vibration for DFIG-Based Wind Turbine," Energies, MDPI, vol. 12(9), pages 1-16, May.
    5. Chenxing Yang & Xu Yang & Yuri A. W. Shardt, 2018. "An ADRC-Based Control Strategy for FRT Improvement of Wind Power Generation with a Doubly-Fed Induction Generator," Energies, MDPI, vol. 11(5), pages 1-19, May.
    6. Kai Zhou & Min Ai & Yancheng Sun & Xiaogang Wu & Ran Li, 2019. "PMSM Vector Control Strategy Based on Active Disturbance Rejection Controller," Energies, MDPI, vol. 12(20), pages 1-19, October.
    7. Yangwu Shen & Feifan Shen & Yaling Chen & Liqing Liang & Bin Zhang & Deping Ke, 2018. "Reactive Power Planning for Regional Power Grids Based on Active and Reactive Power Adjustments of DGs," Energies, MDPI, vol. 11(6), pages 1-17, June.

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