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Coordinated Design of Power System Stabilizers and Static VAR Compensators in a Multimachine Power System using Genetic Algorithms

Proceedings of the 6th ICEENG Conference • 2008
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Publication Information
Authors O. H. Abdalla, W. M. Refaey, M. K. Saad, and G. Sarhan
Keywords Power System Stabilizer, Static VAR Compensator, Genetic Algorithm, Control, eigenvalue analysis, stability.
Journal Proceedings of the 6th ICEENG Conference
Publisher Not Available
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publication.type Local
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Abstract
This paper presents a procedure to coordinated design of PSSs and SVCs in a
multimachine power system. The aims of the proposed method are to find the best
location and the optimal parameters of these compensators in order to improve the
steady state and transient performances and also to increase the system damping over a
wide range of operating conditions. The objective function of the GA allows the
selection of the PSSs and SVCs to shift critical closed loop eigenvalues to the left-hand
side in the complex s-plane. The multimachine power system considered in this study
consists of nine buses, three generating units (steam, hydro and nuclear) and three static
loads. Digital simulation studies show that the proposed design procedure provides good
damping for the power system at different operating conditions, and moreover improves
steady-state and transient performance of the system.