Optimal design of UPFC-based damping controller using imperialist competitive algorithm

Authors

ALI AJAMI
REZA GHOLIZADEH

DOI

10.3906/elk-1102-1047

Abstract

In this paper, the optimal design of supplementary controller parameters of a unified power flow controller (UPFC) to damp low-frequency oscillations in a weakly connected system is investigated. The individual design of the UPFC controller, using the imperialist competitive algorithm (ICA) technique over a wide range of operating conditions, is discussed. The effectiveness and validity of the proposed controller on damping low-frequency oscillations is tested through a time-domain simulation and eigenvalue analysis under 4 loading conditions and a large disturbance. The simulation results, carried out using MATLAB/Simulink software, reveal that the tuned ICA-based UPFC controller has an excellent capability of damping power system low-frequency oscillations and greatly enhances the dynamic stability of the power systems.

Keywords

Power system stability, low-frequency oscillation damping, UPFC, multipoint optimization, imperialist competitive algorithm

First Page

1109

Last Page

1122

Recommended Citation

AJAMI, ALI and GHOLIZADEH, REZA (2012) "Optimal design of UPFC-based damping controller using imperialist competitive algorithm," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 20: No. 7, Article 7. https://doi.org/10.3906/elk-1102-1047
Available at: https://journals.tubitak.gov.tr/elektrik/vol20/iss7/7