Modelling a unified power flow controller for the study of power system steady state and dynamic characteristics

The maintenance and reliability of the power system has become a major aspect of study. The encouragement to the construction of HV lines, the amount of power transmission/km on HV line and the amount of power transaction as seen from economic side is much responsible for concern towards congestion in power system. The solution is the use of FACTS devices especially the use of UPFC. In this paper the study of UPFC with its various modes of operation is understood. Second, the operation of control system used in its converters is also studied. Finally Using the UPFC simulation model established in SIMULINK, a dynamic simulation tool in MATLAB, take a simple power system with UPFC as an example. The simulation test has been conducted on a simple system composed of synchronous generator and infinite capacity bus, the steady state and transient characteristics of UPFC in this system are researched.