Damping Local and Inter-Area Power System Oscillation Improvement by Using Fuzzy Logic Power System Stabilizer.

This paper introduces a fuzzy controller as a power system stabilizer used to damp local and inter-area modes of oscillation following disturbances in power systems. Power Systems are subjected to wide ranges of transient instability and the dynamic instability. The dynamic instability is damped by using the Power System Stabilizers (PSS). The Power System Stabilizer is developed by using the conventional and non conventional controller. Simulation of Multi-Machine Power Systems with conventional and non conventional controller Power System Stabilizers subjected to three-phase fault disturbances and operating conditions are presented. On comparing simulation results is observed that the fuzzy set theory based Power System Stabilizer for Multi-Machine power system has better performance than conventional Power System Stabilizer. [ABSTRACT FROM AUTHOR]