Reliability Improvement of Composite Power System using UPFC

Together with quality power supply criteria, Composite Power System (CPS) reliability is also one of the important aspects deciding security CPS for a given load demand. In current paper, evaluated. The Newton Raphson (NR) approach implemented in Simulation Engineering (PSSE) software to take into account, flows, then available points, evaluate CPS. NR Method was by considering different contingencies points obtained method critical identifying successful operating state Expected Load Curtailment (ELC), Number (NLC), Energy Not Supplied (EENS), and Severity Index (SI) are crucial dependability indices that assessed. main objective Reliability evaluation investigate scope improvement explore possible schemes improve reliability. Unified Flow Controller (UPFC) Flexible AC Transmission Systems incorporated analyze system. Further, effect UPFC on power-carrying capacity lines under contingency conditions, resulting failure mode operation examined. Improvement system observed due incorporation.