Title :
Selecting of SSSC control mode to improve transient and small signal stability in Iran national grid
Author :
Sedighizadeh, M. ; Fatemi, S.A. ; Rezazadeh, A. ; Khatibi, M.
Author_Institution :
Fac. of Electr. & Comput. Eng., Shahid Beheshti Univ., Tehran
Abstract :
In order to utilize a Static Synchronous Series Compensator (SSSC) in the steady state condition, it is to be controlled by several modes. The most important control modes of the SSSC are constant voltage mode, constant impedance mode, and constant power control mode. Besides, this device may be furnished with supplementary controllers, such as damping controls, to enhance the dynamic performance of system. In this paper, the influence of various SSSC control modes on small signal and transient stability of a part of the Iran national grid is investigated. Next, the performance of power oscillation damping (POD) is evaluated for different input signals. The simulation results demonstrate that the utilization of the SSSC in the constant impedance mode improves both the small signal and transient stability better than other control modes.
Keywords :
power grids; power system transient stability; Iran national grid; constant impedance mode; constant power control mode; constant voltage mode; damping controls; power oscillation damping; small signal stability; static synchronous series compensator; transient stability; Control systems; Damping; Flexible AC transmission systems; Impedance; Power system simulation; Power system stability; Power system transients; Steady-state; Thyristors; Voltage control;
Conference_Titel :
Universities Power Engineering Conference, 2008. UPEC 2008. 43rd International
Conference_Location :
Padova
Print_ISBN :
978-1-4244-3294-3
Electronic_ISBN :
978-88-89884-09-6
DOI :
10.1109/UPEC.2008.4651457
