Transient stability enhancement of a multi-machine system using BFOA

Abstract

The Static Synchronous Compensator (STATCOM) is the typical Flexible AC Transmission System (FACTS) devices playing a vital role as a stability aid for the large transient disturbances in a multi-machine power system. This paper deals with the design of STATCOM with two different controllers installed in a multi-machine power system. The disturbances are created in the multi-machine system and the results obtained are analyzed. The results proved the supremacy of the feedback linearizing controller tuned by Bacterial Foraging Optimization Algorithm (BFOA) of STATCOM over the power system stabilizer (PSS) equipped with PI Proportional-Integral controller of STATCOM.