In this paper, three particle swarm optimization (PSO) based
power system stabilizers (PSSs) are developed for three
power systems. The system under study here is a
power pool consisting of 3
power systems. System I represents the Egyptian
power system, system II represents the Jordan and Syrian
power systems, and system III for the Libyan
power system, which are originally self standing and completely independent systems. As a matter of fact each of them should equipped with its own PSS. For this reason this work is started by designing an
optimum power stabilizer for each of them standing alone. After which, the developed PSSs are firstly installed one at a time. Then the three PSSs are installed together in the interconnected
power system and their effect on its dynamic performance is studied.
As a test for stabilization efficiency, the detailed power system model is subjected to a forced outage of a 600-MW generator, which is the biggest unit in the pool, when it is fully loaded. This outage results in loosing of about 3 % of the spinning capacity of system I and about 2 % of the spinning capacity of the whole interconnected system. The obtained results show an improvement in the power pool performance accompanied with an improvement in the inter-area oscillation.