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    Improved control of rotor- and load-side converters of stand-alone DFIGs under nonlinear loads conditions

    Access Status
    Fulltext not available
    Authors
    Wei, F.
    Vilathgamuwa, D.
    Choi, San Shing
    Zhang, X.
    Date
    2013
    Type
    Conference Paper
    
    Metadata
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    Citation
    Wei, F. and Vilathgamuwa, D. and Choi, S.S. and Zhang, X. 2013. Improved control of rotor- and load-side converters of stand-alone DFIGs under nonlinear loads conditions, pp. 687-691.
    Source Title
    2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013
    DOI
    10.1109/ECCE-Asia.2013.6579175
    ISBN
    9781479904822
    School
    School of Electrical Engineering and Computing
    URI
    http://hdl.handle.net/20.500.11937/56318
    Collection
    • Curtin Research Publications
    Abstract

    This paper proposes an improved control of rotor side and load side converters with repetitive control in order to compensate the harmonic components in the stator voltage and current of the doubly-fed induction generator (DFIG) when connected with non-linear loads. The non-linear loads results in distorted stator voltage and current with subsequent power quality degradation and electromagnetic torque pulsations of DFIGs. The distorted stator voltage and current are compensated by the proposed hybrid control scheme with repetitive control (RC) based PI controller (PIRC). The harmonic components of different orders and negative sequence component of the stator voltage can be rejected using a single PIRC while most of the other alternative harmonic compensators require separate controllers for damping these components. The PIRC is applied in rotor side converter (RSC) for the purpose of stator voltage compensation and in line side converter (LSC) for stator current compensation, respectively. The simulation results are given and they show that the PIRC control scheme can eliminate stator voltage and current harmonic of stand-alone DFIG effectively. © 2013 IEEE.

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