Dynamic Voltage Stability Improvement by Static Var Compensator
Keywords:Voltage Stability, SVC, FACT
Modern Power system is highly interconnected comprise of large number of different dynamic devices
such as synchronous machines and loads. The power system is a highly nonlinear system that operates in a
continuously changing environment; loads, generator outputs, and key operating parameters change continually.
Power system is subjected to small and large disturbances due to change in load, change in transmission and
distribution pattern, or due to fault on the system and low frequency trouble that cause loss of synchronism &
eventual breakdown of whole system. The system and studying the results have given an indication that SVC are very
useful when it comes to organize and maintain power system. SVC is the dynamic simulation system where it can
adjust the distribution the system power flow among the transmission line quickly and smoothly, and there is no
significant impact to other operating parameters of the system. At the same time, SVC can improve voltage stability, to
keep down the instability and line oscillation problem.