NOVEL SENSITIVITY INDICES BASED OPTIMAL LOCATION OF TCSC CONTROLLERS IN INDIAN GRID SYSTEM

Abstract

This paper proposes a methodology to determine the location of Thyristor Controlled Series Compensator (TCSC) for secured power flow in the grid system using Novel Sensitivity indices. Three different Novel Sensitivity Indices are formulated based on Availability Based Tariff (ABT), Renewable Energy Integration (REI), Power Purchase (PP), Peak /off-peak (POP), Seasonal Demand (SD), Demand Growth (DG), Change in Capacity (CC), Open Access Customer (OA) and Generation Mix (GM). A methodology for finding the novel sensitivity indices of all the lines and selection of optimal location for placing TCSC for secured power flow in grid system is also presented. The Constriction factor based particle swarm optimization (PSO) algorithm is utilized for finding the settings of the TCSC to be placed on the line selected based on the novel sensitivity indices. To show the validity of the proposed methodology, simulations are carried out for a practical Indian Grid system. The result indicates the importance of considering the proposed novel sensitivity indices in deciding the location of TCSC.