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Coordinated design of PSSs and SVC via bacteria foraging optimization algorithm in a multimachine power system
Faculty
Science
Year:
2012
Type of Publication:
Article
Pages:
44-53
Authors:
Ali, E. S, Abd-Elazim, S. M
DOI:
10.1016/j.ijepes.2012.02.016
Journal:
INTERNATIONAL JOURNAL OF ELECTRICAL POWER \& ENERGY SYSTEMS ELSEVIER SCI LTD
Volume:
41
Research Area:
Engineering
ISSN
ISI:000305107200007
Keywords :
SVC, PSS, Multimachine power system, Coordinated design, Bacteria foraging
Abstract:
This paper develops a novel algorithm for simultaneous coordinated designing of power system stabilizers (PSSs) and static var compensator (SVC) in a multimachine power system. The coordinated design problem of PSS and SVC over a wide range of loading conditions is formulated as an optimization problem. The Bacterial Foraging Optimization Algorithm (BFOA) is employed to search for optimal controllers parameters. By minimizing the proposed objective function, in which the speed deviations between generators are involved; stability performance of the system is improved. To compare the capability of PSS and SVC, both are designed independently, and then in a coordinated manner. Simultaneous tuning of the bacterial foraging based coordinated controller gives robust damping performance over wide range of operating conditions and large disturbance in compare to optimized PSS controller based on BFOA (BFPSS) and optimized SVC controller based on BFOA (BFSVC). Moreover, a statistical T test is performed to ensure the effectiveness of coordinated controller versus uncoordinated one. (C) 2012 Elsevier Ltd. All rights reserved.
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