Abstract:
In this study, in order to control the voltage of the Western System Coordinating Council (WSCC) system, a sliding mode control has been used. First, the active and reactive power values, voltage and angle values of the load-buses have been calculated. The load-buses which their voltage levels are lower than 1 pu has been identified. After that, by considering one of these load-buses, the system is transformed to the system with two load-buses and the sliding mode control model has been obtained. The sliding mode parameters have been obtained by using genetic algorithm (GA) optimization technique. From the results of simulations of this model, it is shown that the voltage of the load-buses reaches at 1 pu with a very low error.