Transient Stability Analysis on a Multi-Machine System in Psat

Abstract

Modern power system are subject to large disturbances such as three phase short circuit faults. When a fault occurs on a system the generators rotor angle becomes unstable and thus it losses synchronism with the system and it becomes unstable. Thus transient stability analysis can be performed on a system in order to understand the generators performance when subjected to a short circuit fault. When the system is subjected to a fault the generator experiences transient oscillations in rotor speed and angle which can be effectively suppressed with the incorporation of Automatic Voltage Regulator (AVR) and Power System Stabilizer (PSS). The simulations have been performed using the MATLAB/PSAT software.