Selection of FACTs Devices for Better Reactive Power Compensation through Capacitor

Flexible alternating current transmission systems (FACTs) technology opens up new opportunities for controlling power flow and enhancing the usable capacity of present, as well as new and upgraded lines. These FACTs device which enables independent control of active and reactive power besides improving reliability and quality of the supply. This paper describes the real and reactive power flow control through a short transmission line and then compensated short transmission line with different FACTs devices are used to selection of FACTs devices for better reactive power compensation with change in line capacitance/shunt capacitance to observe power flow. Computer simulation by MATLAB/SIMULINK has been used to determining better reactive power. TCSC, STATCOM, UPFC and SSSC FACTs controller with different capacitance are tested for controlling reactive power flow.