Enhancement of Multi Machine Power System Stability Using SSSC with Power Oscillation Damping (POD) Controller

Abstract

The increasing demand in power system causes heavily loaded lines which results into voltage instability. The voltage instability takes place due to lack of reactive power, which would causes black-out. FACTS controller provides solution for such difficulties. In this project SSSC have been used in multi machine system for controlling flow of active as well as reactive power. The static synchronous series compensator is delivers a compensating voltage with an inductive or a capacitive range so as to improve voltage stability of the system. In the same system , Power oscillation damping (POD) controller is used along with SSSC to examine its performance when unsymmetrical faults were applied in the system. The performance of SSSC based POD controller in multi machine system were discussed in this paper by constructing MATLAB/SIMULINK model with unsymmetrical faults in it and obtaining voltage, active power, reactive power waveform from the same.