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    Application of STATCOM to improve the LVRT of DFIG during RSC Fire-through Fault

    218496_218496.pdf (551.0Kb)
    Access Status
    Open access
    Authors
    Abdou, A.
    Abu-Siada, Ahmed
    Pota, H.
    Date
    2012
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Abdou, A. and Abu-Siada, A. and Pota, H. 2012. Application of STATCOM to improve the LVRT of DFIG during RSC Fire-through Fault, in 22nd Australasian Universities Power Engineering Conference 2012 (AUPEC), Sep 26-29 2012. Bali, Indonesia: IEEE.
    Source Title
    Proceedings of the 22nd Australasian Universities Power Engineering Conference
    Source Conference
    22nd Australasian Universities Power Engineering Conference
    Additional URLs
    http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6360266
    ISBN
    9781921897078
    School
    Department of Electrical and Computer Engineering
    Remarks

    Copyright © 2012 IEEE. Personal use of this material is permitted. Permission from IEEEmust be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

    URI
    http://hdl.handle.net/20.500.11937/7524
    Collection
    • Curtin Research Publications
    Abstract

    The use of doubly fed induction generators (DFIGs) in large wind energy conversion systems (WECS) has significantly increased during the last few years. The DFIG is interfaced to the AC network through a grid side voltage source converter (GSC) and a rotor side voltage source converter (RSC) to enable the variable speed operation of the wind turbine. Moreover, it provides reactive power support to the AC grid during disturbances. The sensitivity of DFIGs to external faults has motivated researchers to investigate the impact of various grid disturbances, such as voltage sag and short circuit faults, on the low voltage ride through (LVRT) capability of DFIGs. However, no attempts have been made to investigate the impact of converter internal faults on the LVRT of the DFIG-based WECS. In this paper, the impact of a fire-through fault when it occurs in the RSC on the DC-capacitor voltage, rotor current, and the LVRT capability of the DFIG is investigated. A STATCOM controller to mitigate the effects of this fault is proposed. The DFIG compliance with various recently released LVRT grid codes under the fire-through fault with and without the STATCOM is examined and compared. Simulation results indicate that fire-through fault has a severe impact on the DFIG voltage profile and the proposed controller is capable of bringing the voltage profile at the point of common coupling (PCC) to the nominal steady state level.

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