Full-order nonlinear observer-based excitation controller design for interconnected power systems via exact linearization approach

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Title Full-order nonlinear observer-based excitation controller design for interconnected power systems via exact linearization approach
Author Mahmud, M. A.; Pota, H. R.; Hossain, Jahangir
Journal Name International Journal of Electrical Power & Energy Systems
Year Published 2012
Place of publication United Kingdom
Publisher Elsevier
Abstract This paper presents a novel full-order nonlinear observer-based excitation controller design for interconnected power systems. Exact linearization approach of feedback linearization is used to design the nonlinear observer when the power system is fully linearized. The excitation control law is derived for the exactly linearized power system model. The observed states of power system are directly used as the input to the controller where the control law does not need to be expressed in terms of all measured variables. A single machine infinite bus (SMIB) system is used as test system and all the states are observed for SMIB system. To validate the effectiveness of the proposed control scheme on a large system, a benchmark 3 machine 11 bus system is also simulated. Simulation results show the accuracy and performance of observer-based nonlinear excitation controller by comparing with the exact linearizing controller where the control law is expressed in terms of all measured variables.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1016/j.ijepes.2012.03.007
Copyright Statement Copyright 2012 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 41
Issue Number 1
Page from 54
Page to 62
ISSN 0142-0615
Date Accessioned 2012-06-19
Date Available 2013-06-03T04:54:36Z
Language en_US
Research Centre Centre for Wireless Monitoring and Applications
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Power and Energy Systems Engineering (excl Renewable Power)
URI http://hdl.handle.net/10072/47171
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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