Comparison between modifications of SFOC and DPC in control of grid-connected doubly fed induction generator under unbalanced voltage dip

Truc Pham-Dinh, Hai Nguyen-Thanh, Kenko Uchida, Nguyen Gia Minh Thao

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    6 Citations (Scopus)

    Abstract

    This paper presents both the previously and newly modified Stator Flux Oriented Control (SFOC) and Direct Power Control (DPC) structures for Doubly Fed Induction Generator (DFIG) in wind turbines to improve responses of active power, reactive power and generator's torque during the grid voltage unbalance. In the newly proposed SFOC-based scheme, which emphasizes on improvement of generator's torque performance, PI controllers with anti-windup, Notch filters and the Sequence Component Controller (SCC) are utilized. The other control techniques use single or multiple applications of PI controller with anti-windup, hybrid PI-Fuzzy controller with anti-windup and Notch filter to eliminate the second-order harmonic components. The designed system consists of a wound rotor induction generator and power-electronics converters at both rotor and grid sides. The modifications are applied to the rotor side converter (RSC). Simulations in Matlab/Simulink illustrate the enhanced stability of torque, active and reactive powers delivered by DFIG in both the SFOC-based and DPC-based schemes. Moreover, comparisons in simulation results, obtained separately from all the presented control structures, are provided to evaluate the effectiveness of the newly proposed scheme.

    Original languageEnglish
    Title of host publicationProceedings of the SICE Annual Conference
    Pages2581-2588
    Number of pages8
    Publication statusPublished - 2013
    Event2013 52nd Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2013 - Nagoya
    Duration: 2013 Sep 142013 Sep 17

    Other

    Other2013 52nd Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2013
    CityNagoya
    Period13/9/1413/9/17

    Keywords

    • DFIG
    • DPC
    • PI-fuzzy
    • SFOC
    • Unbalanced voltage dip
    • Wind turbine

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Control and Systems Engineering
    • Computer Science Applications

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  • Cite this

    Pham-Dinh, T., Nguyen-Thanh, H., Uchida, K., & Thao, N. G. M. (2013). Comparison between modifications of SFOC and DPC in control of grid-connected doubly fed induction generator under unbalanced voltage dip. In Proceedings of the SICE Annual Conference (pp. 2581-2588)