Whale optimization algorithm for fuzzy lead-lag structure SSSC damping controller design

In this paper, a designing process of fuzzy lead-lag static synchronous series compensator (SSSC) employing whale optimization algorithm (WOA) is discussed here with the main aim to improve the stability of power system. The controller design task is taken as an optimization task and WOA is utilized to tune the controller parameters. The usefulness of the planned controller is estimated under various disturbances for single-machine infinite bus power system. To reveal the advantage of fuzzy lead-lag controller for SSSC, results are compared with differential evolution and particle swarm optimization based conventional structured SSSC controllers. The comparison of result of WOA with that of other methods exploits its superiority in the present context.