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Computer simulation of voltage sag generator

The paper describes computer simulations used as an initial phase in process of designing a three-phase voltage sag generator. The influence of various parameters, different circuit topologies and different control strategies is investigated and discussed in the paper. The main results and conclusions are illustrated numerically and graphically. The investigation resulted in selection of optimal design and control parameters for voltage sag generator. The PSCAD/EMTDC software environment was used in all computer simulations.