Power System Security Enhancement Based on Optimal Placement of Thyristor Controlled Series Compensation

This paper presents the application of Differential Evolution (DE) technique to find out the optimal placement and parameter setting of TCSC for enhancing power system security under single line contingency (N-1 contingency). To verify our proposed approach and for comparison purposes, simulations are performed on an IEEE 6 bus power system and an IEEE 14 bus power system. The obtained results indicate that DE is an easy to use, fast, robust and powerful optimization technique compared with Genetic Algorithm (GA). Installing TCSC in the optimal location determined by DE can significantly enhance the security of power system by eliminating or minimizing the number of overloaded lines and the bus voltage limit violations.