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  • Voltage mode stabilisation in power systems with dynamic loads

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    77963_1.pdf (247.2Kb)
    Author(s)
    Hossain, MJ
    Pota, HR
    Ugrinovskii, VA
    Ramos, RA
    Griffith University Author(s)
    Hossain, Jahangir
    Year published
    2010
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    Abstract
    This paper presents a novel modelling and excitation control design to enhance large-disturbance voltage stability in power systems with significant induction motor (IM) loads. The excitation controller is designed using minimax linear quadratic Gaussian (LQG) controller synthesis method. The nonlinear power system model is reformulated with a linear and a nonlinear term. The nonlinear term is the Cauchy remainder in the Taylor series expansion and its bound is used, in this paper, in a robust control design. An advantage of this approach over the existing linearisation scheme is the treatment of the nonlinear dynamic load ...
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    This paper presents a novel modelling and excitation control design to enhance large-disturbance voltage stability in power systems with significant induction motor (IM) loads. The excitation controller is designed using minimax linear quadratic Gaussian (LQG) controller synthesis method. The nonlinear power system model is reformulated with a linear and a nonlinear term. The nonlinear term is the Cauchy remainder in the Taylor series expansion and its bound is used, in this paper, in a robust control design. An advantage of this approach over the existing linearisation scheme is the treatment of the nonlinear dynamic load model in a rigorous framework for excitation control design. The performance of the designed controller is demonstrated by large disturbance simulations on a benchmark power system for various types of loads.
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    Journal Title
    International Journal of Electrical Power & Energy Systems
    Volume
    32
    Issue
    9
    DOI
    https://doi.org/10.1016/j.ijepes.2010.06.001
    Copyright Statement
    © 2010 Elsevier. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Subject
    Power and Energy Systems Engineering (excl. Renewable Power)
    Electrical and Electronic Engineering
    Publication URI
    http://hdl.handle.net/10072/44733
    Collection
    • Journal articles

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