Power loss reduction and voltage stability enhancement by optimal location of UPFC

The power system is a very complex system. The considerable components of power system are voltage, power flows real and reactive power losses. These components are controlled by compensating the system. The system can be compensated by the various types of devices such as static capacitors, synchronous condensers etc. But the devices which are mentioned are not providing the flexible control of the power system components. The majority of the losses are shared by the transmission system. By controlling the parameters at transmission, the total system is controlled. So the devices with the combination of power electronic devices provide the flexible control on the transmission system of the power system parameters which are called FACTS devices. This paper proposed the combined series-shunt compensation FACTS device called UPFC. This paper mainly concentrated on the suitable placement of the UPFC FACTS device for Loss reduction and enhancement of voltage profile of the power system using Fast Voltage Stability Index (FVSI).