Abstract
This paper documents research conducted to investigate the use and tuning of power system stabilizers (PSSs) to improve small-signal dynamic performance of the Mexican interconnected system (MIS). The analysis focuses on the control of a critical inter-area mode associated with the interaction between the southeastern and western regions of the system and a critical local mode. Study results include the determination of critical system modes more controllable by existing PSSs and the use of supplementary control actions to damp low-frequency inter-area modes of oscillation. Results for both, small and large perturbations are presented to illustrate the placement and tuning of PSSs at several appropriate locations throughout the system. © 2005 Elsevier B.V. All rights reserved.
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