Abstract
Power System Stabilizer (PSS) which is installed in Automatic Voltage Regulator (AVR) in the excitation system of the synchronous generator improves the small-signal power system stability by damping out low frequency oscillations in the modern power system. It reduces the power swings in the system by providing supplementary perturbation signals in a feedback path to the synchronous generator excitation system. PSS improves damping in local mode of oscillations efficiently but it cannot provide sufficient damping for inter-area oscillations in the Multi-machine power system. In this paper, the SMIB with PSS is simulated in MATLAB/SIMULINK.
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