Investigating on series FACTS devices for Transmission expansion planning

This paper introduces a new methodology for transmission expansion planning (TEP) in electric power systems which is one of the major concerns in electric power systems due to its huge investment cost and planning time. The proposed TEP is addressed incorporating thyristor controlled series capacitor (TCSC) as one of the principal series type flexible AC transmission systems (FACTS) devices. The proposed TEP including TCSC is expressed as a nonlinear, mixed integer and constrained optimization problem and solved using PSO algorithms. This coordination reduces the planning cost and increases the planning flexibility and adequacy. The proposed planning is simulated based on the IEEE 14 bus test system and simulations are carried out using MATLAB software. Simulation results illustrate that coordination of TCSC and TEP provides suitable outcomes. The results are verified through deep discussions, comparative studies, and sensitivity analysis.

کلیدواژه ها:

Series Flexible AC Transmission Systems ، Thyristor Controlled Series Capacitor ، Transmission Expansion Planning