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    A New Reactive Current Reference Algorithm for the STATCOM System Based on Cascaded Multilevel Inverters

    Access Status
    Fulltext not available
    Authors
    Law, Kah Haw
    Dahidah, M.
    Almurib, H.
    Date
    2015
    Type
    Journal Article
    
    Metadata
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    Citation
    Law, K.H. and Dahidah, M. and Almurib, H. 2015. A New Reactive Current Reference Algorithm for the STATCOM System Based on Cascaded Multilevel Inverters. IEEE Transactions on Power Electronics. 30 (7): pp. 3577-3588.
    Source Title
    IEEE Transactions on Power Electronics
    DOI
    10.1109/TPEL.2014.2341318
    ISSN
    0885-8993
    School
    Curtin Malaysia
    URI
    http://hdl.handle.net/20.500.11937/63486
    Collection
    • Curtin Research Publications
    Abstract

    This paper presents a simple controller integrating a new reactive current reference algorithm for enhancing the transient performance of static synchronous compensator (STATCOM). A multilevel cascaded inverter with separated dc capacitors which is driven by carrier-based pulse width modulation is used to implement the STATCOM. The voltage across each dc-link capacitor is regulated by the rotated switching swapping scheme. In this paper, the STATCOM is controlled to provide both reactive power (VAR) compensation and grid power factor correction at the point of common coupling with a dynamically varying reactive load system. The proposed algorithm enhances the transient performance of the closed-loop system with only proportional controller and minimizes the STATCOM reactive current ripples. STATCOM based on a five-level cascaded inverter is presented in this paper and the performance of the proposed controller is investigated through various simulation studies using MATLAB/Simulink software for both steady state and transient conditions. A laboratory prototype is also developed to verify the simulation results where a good match between simulation and experimental results is achieved.

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