Hierarchical Steady State Control of System wide Distributed Multi-FACTS Devices for Operational Enhancement Objectives

Developed power systems in the world are well meshed with local, inter-regional and international connection making the increasing complex to operate. With advancement in power electronics, the control of these systems are faster with the aid of Flexible AC Transmission system devices (FACTs) introduced as control element in the system. As more of these devices are installed optimally in the transmission line at various locations, it is unarguable that it has the capabilities to control powerflows in major transmission line power corridors as well as improve voltage profiles of some critical buses within their respective operational domains of dominant influence. In addition, there tends to be a mutual conflict within the system. These unhealthy interactions within the system where these devices tend to operate beyond their operational domain. This paper is meant to x-ray and resolve these advance conflict as they occur in the system.