Published Paper Details:

Flexible Alternating Current Transmission Systems (FACTS) devices have been proposed to be effective for controlling power flow and regulating bus voltage in electrical power systems, resulting in an increased power transfer capability, low system losses. Voltage variations can be stabilized and controlled by providing required reactive power. The low voltages reduce the power transfer through the transmission lines and may lead to Instability. Hence FACTS Controllers are widely used in Interconnected Power Systems to control the voltage levels within the tolerable limits. Placement of these devices in suitable location can lead to control in line flow and maintain bus voltages in desired level and so improve voltage stability margins. This paper presents the GA optimization technique to find optimal location of TCSC device for reduction of power losses so thereby improves the voltage profile of the power system network. The optimizations are performed on two parameters: the location of the devices, and their values. The results are compared with and without the TCSC device. To show the validity of the proposed techniques and for comparison purposes, simulation carried out on an IEEE- 30 Bus test system.