Enhancement of a Power System Transient Stability Using Static Synchronous Compensator STATCOM


In modern power system utilities, increased power demand often lead to thesituation where the system no longer remains in secure operating region. Flexible ACTransmission Systems (FACTS) controllers can play an important roll in powersystem security enhancement. The goal of FACTS devices study is to measure theirimpact on the state of the electrical networks into which they are introduced. Theirprincipal function is to improve the static and dynamic properties of the electricalnetworks and that by increasing the margins of static and dynamic stability. In thispaper the modeling of Static Synchronous Compensator (STATCOM) withinNewton-Raphson power flow equations has been presented, discussed, implementedand the transient stability of a power system was tested when three phase fault isapplied at a certain branch of the power system. Case studies are carried out on a 5-bus and a 30-bus test systems to demonstrate the effectiveness of the proposed model.