Genetic Algorithm based Optimal Placement of TCSC for Improving Voltage Profile

This paper presents optimal placement of thyrisor controlled series compensator (TCSC) to improve voltage profile and thus improve stability of the system. IEEE 30 bus test system is considered for case study. Newton-Raphson method is applied for load flow analysis. The optimal location of TCSC is chosen by using FVSI method. Load flow has been carried out with optimal placement of TCSC and both system parameters (with and without TCSC) are compared. The overall cost function has been minimized using genetic algorithm (GA) optimization technique. Minimization of total cost which includes the TCSC installation cost and voltage deviation cost is considered as the objective function. The power loss with TCSC is reduced from 5.16 MW to 5.08 MW. The simulation is carried out using MATLAB environment.