Wide area control in electric power systems incorporating FACTS controllers: Review

Wide area monitoring systems (WAMS) together with phasor measurement units (PMUs) are the key to implement wide area control systems (WACS). WACS are responsible of achieving different control objectives from signals and measurements taken of a wide area network. Control objectives can be focused on a large region of the network or part of it. Furthermore, flexible ac transmission systems (FACTS) are devices that allow to implement the control laws designed and developed from measurements of WAMS/PMU. This paper presents a review of the current state of the art of WACS incorporating FACTS devices, specifically, the different FACTS configurations, applications and control used.