Flower Pollination Algorithm Based Optimal Setting of TCSC to Minimize the Transmission Line Losses in the Power System

To avoid the problems of voltage stability, losses and security of power system is needed to monitor frequently and these problems are controlled by using the Flexible AC Transmission System (FACTS) devices. They help to improve the voltage profiles, security of the system and minimize the transmission line losses. Thyristor Controlled Series Capacitor (TCSC) is one of the FACTS devices which is easier to control than other control devices. The device was placed such that it also meets the constraint of having minimum losses. Further for setting of the TCSC Flower Pollination Algorithm is employed, it is a nature inspired algorithm developed from the pollination of flowers. For Placement of TCSC, a Fast Voltage Stability Index (FVSI) is proposed. For the verification of the proposed method, simulations are carried on IEEE 14 bus system and the results are presented and analyzed to ascertain the effectiveness in reduction of the losses in the power system.