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Performance Analysis of a Four-Switch Three-Phase Grid-Side Converter with Modulation Simplification in a Doubly-Fed Induction Generator-Based Wind Turbine (DFIG-WT) with Different External Disturbances

Author

Listed:
  • Kai Ni

    (The State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing 400044, China
    Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, UK)

  • Yihua Hu

    (The State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing 400044, China
    Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, UK)

  • Yang Liu

    (School of Electric Power Engineering, South China University of Technology, Guangzhou 510640, China)

  • Chun Gan

    (Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN 37996, USA)

Abstract

This paper investigates the performance of a fault-tolerant four-switch three-phase (FSTP) grid-side converter (GSC) in a doubly-fed induction generator-based wind turbine (DFIG-WT). The space vector pulse width modulation (SVPWM) technique is simplified and unified duty ratios are used for controlling the FSTP GSC. Steady DC-bus voltage, sinusoidal three-phase grid currents and unity power factor are obtained. In addition, the balance of capacitor voltages is accomplished based on the analysis of current flows at the midpoint of DC bus in different operational modes. Besides, external disturbances such as fluctuating wind speed and grid voltage sag are considered to test its fault-tolerant ability. Furthermore, the effects of fluctuating wind speed on the performance of DFIG-WT system are explained according to an approximate expression of the turbine torque. The performance of the proposed FSTP GSC is simulated in Matlab/Simulink 2016a based on a detailed 1.5 MW DFIG-WT Simulink model. Experiments are carried out on a 2 kW platform by using a discrete signal processor (DSP) TMS320F28335 controller to validate the reliability of DFIG-WT for the cases with step change of the stator active power and grid voltage sag, respectively.

Suggested Citation

  • Kai Ni & Yihua Hu & Yang Liu & Chun Gan, 2017. "Performance Analysis of a Four-Switch Three-Phase Grid-Side Converter with Modulation Simplification in a Doubly-Fed Induction Generator-Based Wind Turbine (DFIG-WT) with Different External Disturbanc," Energies, MDPI, vol. 10(5), pages 1-24, May.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:5:p:706-:d:98984
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    Citations

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    Cited by:

    1. Zhicheng Lin & Song Zheng & Zhicheng Chen & Rong Zheng & Wang Zhang, 2019. "Application Research of the Parallel System Theory and the Data Engine Approach in Wind Energy Conversion System," Energies, MDPI, vol. 12(5), pages 1-20, March.
    2. Mohamed Dahbi & Said Doubabi & Ahmed Rachid, 2018. "Current Spikes Minimization Method for Three-Phase Permanent Magnet Brushless DC Motor with Real-Time Implementation," Energies, MDPI, vol. 11(11), pages 1-14, November.
    3. Yunqi Xiao & Yi Wang & Yanping Sun, 2018. "Reactive Power Optimal Control of a Wind Farm for Minimizing Collector System Losses," Energies, MDPI, vol. 11(11), pages 1-15, November.
    4. Wei Li & Gengyin Li & Kai Ni & Yihua Hu & Xinhua Li, 2017. "Sensorless Control of Late-Stage Offshore DFIG-WT with FSTP Converters by Using EKF to Ride through Hybrid Faults," Energies, MDPI, vol. 10(12), pages 1-26, November.
    5. Ernande Eugenio C. Morais & Francisco Kleber de A. Lima & Jean M. L. Fonseca & Carlos G. C. Branco & Lívia de A. Machado, 2019. "Providing Ancillary Services with Wind Turbine Generators Based on DFIG with a Two-Branch Static Converter," Energies, MDPI, vol. 12(13), pages 1-21, June.

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