A robust power-system stabiliser design using swarm optimisation
by Khaled A. El-Metwally, Abel-Latif Elshafei, Hisham M. Soliman
International Journal of Modelling, Identification and Control (IJMIC), Vol. 1, No. 4, 2006

Abstract: Synchronous generators in power systems are commonly equipped with Power System Stabilisers (PSS) to provide damping signals following disturbances. The design parameters of the PSS are load-dependent. The main objective of this paper is to design a simple robust PSS that can properly function over a wide range of operating conditions. The proposed compensator is designed by stabilising a finite number of characteristic polynomials that are obtained using Kharitonov theorem. The compensator's parameters are tuned using a swarm optimisation technique to ensure maximum relative stability. Simulation results illustrate satisfactory performance of the PSS as it is applied to the original non-linear system under wide loading conditions at lagging and leading power factors.

Online publication date: Tue, 27-Feb-2007

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