Date of Publication :22nd February 2018

Abstract: In recent year, power demand has increased substantially and hence expansion of power generation and transmission system has been severally limited due to limited resources and environmental restriction. From the secure operation point of view, power system stability has been recognized as an important role. After physical disturbances, the system regains a state of operating equilibrium is called as steady state stability. This problem can overcome by use of Flexible AC Transmission System (FACTS) device. Thyristor Controlled Series Capacitor (TCSC) and Static VAR Compensator (SVC) FACTS device will be used here. But proper placement of FACTS device is a big challenge, this challenge can be overcome by use of sensitivity indices analysis method and the priority is decided with the help of soft computing technique. The soft computing technique use here is Fuzzy logic to decide priority. All the study will be carried out on electrical IEEE-14 bus system and software used is MATLAB.

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