Iraq network 400kV, 50Hz interconnect with Iran, Turkey and Syria inter-area oscillation damping and voltage regulation by using SVC

Electromechanical oscillations one of the most important stability limits constraining power transfer between two countries. This paper presents different power system electromechanical oscillation types, and focuses on inter-area oscillation, where SVC is chosen to be installed at the midpoint of long tie line between Iraq and Turkey, so as to be more effective for two options: the first option is to use the SVC for inter-area oscillation damping, in case of system oscillation occurring in a 3-ph-to-ground short circuit fault at the tie transmission line between countries near the exporting area which is removed after 100ms, and the second option is to use it as a voltage regulator of this long transmission line. The control operation of the SVC is accomplished with the control signal from remote control unit such as WAMS. By using Matlab and Simulink, different simulation results are presented based on various scenarios.