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Optimal coordination of PSS and SSSC controllers in power system using ant colony optimization algorithm.

Kamarposhti, Mehrdad Ahmadi; Colak, Ilhami; Iwendi, Celestine; Band, Shahab S.; Ibeke, Ebuka


Mehrdad Ahmadi Kamarposhti

Ilhami Colak

Celestine Iwendi

Shahab S. Band


Volatility leads to disruption in synchronism between generators of a continuous system. The frequency of the volatility is usually between a few tenths of Hz to several Hz. This volatility is sometimes divided into two types, local and interregional. Local volatility is the low-frequency volatility of a power plant unit or units of a power plant relative to the grid whereas interregional volatility is the volatility of the units of one area relative to the units of another area. The worst kind of low-frequency volatility occurs when the power system in a region has a short three-phase connection to the earth, creating a complete instability of the grid and operating protective systems. One of the ways to improve the dynamic stability and steady-state of the power system is to use power system stabilizers and FACTS devices in the system. In this paper, the stabilization of the power system stabilizers PSS and SSSC is done using the ant colony algorithm. Studies on a four-machine system with the three-phase error were performed in two scenarios and finally compared with the PSO method. The simulation results show that the proposed method produced more accurate performance.


KAMARPOSHTI, M.A., COLAK, I., IWENDI, C., BAND, S.S. and IBEKE, E. 2022. Optimal coordination of PSS and SSSC controllers in power system using ant colony optimization algorithm. Journal of circuits, systems and computers [online], 31(4), article 2250060. Available from:

Journal Article Type Article
Acceptance Date Aug 16, 2021
Online Publication Date Sep 30, 2021
Publication Date Mar 15, 2022
Deposit Date Aug 20, 2021
Publicly Available Date Oct 1, 2022
Journal Journal of circuits, systems and computers
Print ISSN 0218-1266
Electronic ISSN 1793-6454
Publisher World Scientific Publishing
Peer Reviewed Peer Reviewed
Volume 31
Issue 4
Article Number 2250060
Keywords PSS; SSSC; Cost reduction; FACTS devices; Low-frequency volatility; Ant colony optimization algorithm
Public URL


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