ABSTRACT
Flexible AC transmission system (FACTS) devices are widely used in power system. They have characteristics to perform faster and can solve many problems in power system study. With regards to this, a particle swarm optimization (PSO) algorithm is applied so that to design the coordinated parameters of static VAR compensator (SVC) and Thyristor Controlled Series Capacitor (TCSC) is presented here. With behavioural nonlinearities of the power system, linear methods cannot be used to design coordinated parameters of controllers. Simulations has been done on IEEE (WSCC) 9 bus power system in MATLAB and its toolboxes. The results are compared and found that coordination of FACTS devices with each other confirm the efficiency of the proposed method for improving the voltage profile. When operation of TCSC is constrained by some limitation, adjustable SVC can supply auxiliary support to improve the overall performance.
