Voltage mode stabilisation in power systems with dynamic loads

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Title Voltage mode stabilisation in power systems with dynamic loads
Author Hossain, Md. Jahangir; Pota, H.R.; Ugrinovskii, V.A.; Ramos, R.A.
Journal Name International Journal of Electrical Power & Energy Systems
Year Published 2010
Place of publication United Kingdom
Publisher Elsevier
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 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.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1016/j.ijepes.2010.06.001
Copyright Statement Copyright 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.
Volume 32
Issue Number 9
Page from 911
Page to 920
ISSN 0142-0615
Date Accessioned 2012-04-23
Language en_US
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Power and Energy Systems Engineering (excl Renewable Power)
URI http://hdl.handle.net/10072/44733
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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