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VSC-based direct torque and reactive power control of doubly fed induction generator

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  • Hu, Jiabing
  • Yuan, Xiaoming

Abstract

This paper proposes a novel direct torque and reactive power control (DTC) for grid-connected doubly fed induction generators (DFIGs) in the wind power generation applications. The proposed DTC strategy employs a variable structure control (VSC) scheme to calculate the required rotor control voltage directly and to eliminate the instantaneous errors of active and reactive powers without involving any synchronous coordinate transformations, which essentially enhances the transient performance. Constant switching frequency is achieved as well by using space vector modulation (SVM), which eases the designs of power converter and ac harmonic filters. Simulated results on a 2MW grid-connected DFIG system are presented and compared with those of the classic voltage-oriented vector control (VC) and traditional look-up-table (LUT) direct power control (DPC). The proposed VSC DTC maintains enhanced transient performance similar to the LUT DPC and keeps the steady-state harmonic spectra at the identical level as the VC strategy when the network is strictly balanced. Besides, the VSC DTC strategy is capable of fully eliminating the double-frequency pulsations in both the electromagnetic torque and the stator reactive power during network voltage unbalance.

Suggested Citation

  • Hu, Jiabing & Yuan, Xiaoming, 2012. "VSC-based direct torque and reactive power control of doubly fed induction generator," Renewable Energy, Elsevier, vol. 40(1), pages 13-23.
    • Handle: RePEc:eee:renene:v:40:y:2012:i:1:p:13-23
    DOI: 10.1016/j.renene.2011.08.023
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    References listed on IDEAS

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    1. Hu, Jiabing & He, Yikang, 2011. "DFIG wind generation systems operating with limited converter rating considered under unbalanced network conditions – Analysis and control design," Renewable Energy, Elsevier, vol. 36(2), pages 829-847.
    2. Verij Kazemi, Mohammad & Sadeghi Yazdankhah, Ahmad & Madadi Kojabadi, Hossein, 2010. "Direct power control of DFIG based on discrete space vector modulation," Renewable Energy, Elsevier, vol. 35(5), pages 1033-1042.
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    Cited by:

    1. Shukla, Rishabh Dev & Tripathi, Ramesh Kumar & Thakur, Padmanabh, 2017. "DC grid/bus tied DFIG based wind energy system," Renewable Energy, Elsevier, vol. 108(C), pages 179-193.
    2. Ademi, Sul & Jovanovic, Milutin, 2016. "Control of doubly-fed reluctance generators for wind power applications," Renewable Energy, Elsevier, vol. 85(C), pages 171-180.
    3. Abuaisha, Tareq Saber, 2014. "General study of the control principles and dynamic fault behaviour of variable-speed wind turbine and wind farm generic models," Renewable Energy, Elsevier, vol. 68(C), pages 245-254.
    4. Salah Tamalouzt & Youcef Belkhier & Younes Sahri & Mohit Bajaj & Nasim Ullah & Md. Shahariar Chowdhury & Teerawet Titseesang & Kuaanan Techato, 2021. "Enhanced Direct Reactive Power Control-Based Multi-Level Inverter for DFIG Wind System under Variable Speeds," Sustainability, MDPI, vol. 13(16), pages 1-26, August.

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