Abstract

Abstract— Flexible Alternating Current Transmission Systems (FACTS) devices have been projected as effectual control in Real and reactive power flows and regulating bus voltage in most of the power system networks or models, as a result reduction in losses, and maintaining stable operating condition in almost contingent situations. Placement of such a FACTS devices in suitable location and capacity can lead to control in line flow and maintain bus voltages at desired level and to improve power system security. This paper presents a novel algorithm for optimal allocation and Sizing of FACTS devices based on biogeography based optimization Algorithm. The proposed algorithm is tested with IEEE 30 bus power system. Keywords: FACTS, Biogeography based Optimization, Security enhancement, Steady state Security Assessment, TCSC