Congestion Management in Deregulated Power System Using FACTS Devices

In a deregulated electricity market, it may always not be possible to dispatch all of the
contracted power transactions due to congestion of the transmission corridors.
Congestion in the transmission lines is one of the technical problems that appears
particularly in the deregulated environment. The ongoing power system restructuring
requires an opening of unused potentials of transmission system due to
environmental, right-of-way and cost problems which are major hurdles for power
transmission network expansion. Flexible ac transmission systems devices can be an
alternative to reduce the flows in heavily loaded lines, resulting in increased load
ability, low system loss, improved stability of the network, reduced cost of production
and fulfilled contractual requirement by controlling the power flows in the network.
This paper presents the simulation of the powers system with FACTS, using
MATLAB SIMULINK and Power System Analysis Toolbox (PSAT).