|
Abstract
|
In this paper, the designing problem of two flexible AC transmission systems
(FACTS)-based stabilizers are formulated for a cuckoo optimization algorithm (COA) with an
objective function that includes the damping factor and the damping ratio of oscillations. This
new optimization algorithm has a strong ability to find the most optimistic results for dynamic
stability improvement. Also, its performance in 20 times run is the same as in 1 time run.
Single machine infinite bus (SMIB) system has been considered to examine the operation of
proposed COA based static synchronous series compensator (SSSC) and static synchronous
compensator (STATCOM) controllers. Sudden change in the input power of generator is
considered as a disturbance. The effectiveness of the proposed COA based SSSC and
STATCOM controller for damping of low frequency oscillations is tested on a weakly
connected power system with a disturbance and different loading conditions and their results
are compared with each other. The eigenvalue analysis and time domain simulation results are
presented to show the effectiveness of these FACTS-based stabilizers. The results obtained
revealed the effectiveness of SSSC in comparison with STATCOM in damping power system
oscillation and the results confirmed the effectiveness of the COA method for controller
parameter optimization.
|