Congestion Management in Deregulated Power System by locating Series FACTS devices

Abstract

Congestion management is one of the technical challenges in Power system deregulation. In deregulated electricity market transmission congestion occurs when there is insufficient transmission capacity to simultaneously accommodate all constraints for transmission of a line. Flexible Alternative Current Transmission System (FACTS) devices can be an alternative to reduce the flows in heavily loaded lines, resulting in an increased loadability, low system loss, improved stability of the network, reduced cost of production and fulfilled contractual requirement by controlling the power flow in the network. A method to determine the optimal location of FACTS has been suggested based on real power Performance Index and reduction of total system VAR power losses. The simulation results were successfully tested on IEEE 14 bus system.