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. In this paper, a particle swarm optimization (PSO) algorithm is applied so that to design the coordinated parameters of power system stabilizer (PSS) and static VAR compensator (SVC). With behavioral nonlinearities of the power system, linear methods can not 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 o f FACTS devices with PSS confirm the efficiency of the proposed method for improving the voltage profile. By improving the bus voltage using this method, other parameters interrelated to it can also be changed.
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