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

fYear

2008

fDate

1-4 Sept. 2008

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/UPEC.2008.4651457

Filename

4651457