Indian Journal of Science and Technology

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Performances of Fuzzy Logic based impedance types FACTS controllers and classical controllers in damping power system oscillations have been studied and their effectiveness have been compared. Different FACTS devices are considered, namely (i) Thyristor Controlled Series Compensator (TCSC), (ii) Thyristor Controlled Phase Shifter (TCPS) (iii) Static VAR Compensators (SVC), and their combinations. Mamdani type fuzzy inference system is used. PSS, Lead-Lag and proportional type classical controllers have been considered. Performances of the controller have been demonstrated through time domain simulation studies. Simulation results have been compared and conclusions have been drawn. Results show that the Fuzzy Logic controllers have excellent and comparatively better potential in damping power system oscillations.

Keywords

FACTS devices such as SVC, Power System Stabilizer (PSS), TCSC, TCPS and Fuzzy logic (FL) Controller.
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