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Transient stability enhancement of multimachine power systems using nonlinear observer-based excitation controller

Mahmud, Apel, Hossain, M J and Pota, H R 2014, Transient stability enhancement of multimachine power systems using nonlinear observer-based excitation controller, International journal of electrical power and energy systems, vol. 58, pp. 57-63.

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Title Transient stability enhancement of multimachine power systems using nonlinear observer-based excitation controller
Author(s) Mahmud, ApelORCID iD for Mahmud, Apel orcid.org/0000-0002-5302-5338
Hossain, M J
Pota, H R
Journal name International journal of electrical power and energy systems
Volume number 58
Start page 57
End page 63
Total pages 7
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2014-01-27
ISSN 1879-3517
Keyword(s) Observer-based excitation controller
Multimachine power systems
Partial feedback linearization
Transient stability controller
Summary This paper presents an approach to design a nonlinear observer-based excitation controller for multimachine power systems to enhance the transient stability. The controller is designed based on the partial feedback linearization of a nonlinear power system model which transforms the model into a reducedorder linear one with an autonomous dynamical part. Then a linear state feedback stabilizing controller is designed for the reduced-order linear power system model using optimal control theory which enhances the stability of the entire system. The states of the feedback stabilizing controller are obtained from the nonlinear observer and the performance of this observer-based controller is independent of the operating points of power systems. The performance of the proposed observer-based controller is compared to that of an exact feedback linearizing observer-based controller and a partial feedback linearizing controller without observer under different operating conditions.
Language eng
Field of Research 090607 Power and Energy Systems Engineering (excl Renewable Power)
090608 Renewable Power and Energy Systems Engineering (excl Solar Cells)
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084016

Document type: Journal Article
Collection: School of Engineering
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