Synthetic Application Of FPSS and TCSC for Improvment Of Voltage and Current Profiles in Electrical Power Systems

In this paper the ability of fuzzy logic to design power system stabilizer for generating proper control signal has been demonstrated. The selected TCSC is mounted at the center of transmission line and fuzzy power system stabilizer uses the variation of electric power and its derivative as input signal. Also using triangular membership function, the complementary signal is obtained. The study system is simulated using MATLAB Simulink 6.5. Then, applying a symmetrical three phase short circuit fault, oscillations are created in power system. The major area of this paper is damping this oscillation by using fuzzy power system and TCSC. Finally, in this study a comparison between controllers of PSS and PSS+TCSC and also FPSS+TCSC to damp this oscillation is done