A new coordinately design of STATCOM and power system stabilizer using hybrid BF-NM algorithm

Although it has been proved that Facts devices can increase the damping of the power system, uncoordinated design of theses devices with power system stabilizers (PSSs) may degrade the system performance. This paper presents a new hybrid algorithm, named BF-NM, to design the parameters of PSS and STATCOM coordinately. In order to have the best optimization procedure two methods of Bacteria Foraging (BF) and Nelder-Mead (NM) methods are employed. Simulations are carried on a single-machine infinite-bus system. Comparing the results of the proposed method with other intelligent methods, PSO and BFA shows that a better performance is achieved when using the new technique.