Simulation of the flicker phenomenon based on modeling the electric arc

The Electric Arc Furnace (EAF) is a very large power load, determining the negative effects on the power quality like flicker effect, harmonics currents, and reactive power. These effects are due to the nonlinear characteristic of the electric arc. In this paper is made a study based on simulation about flicker effect caused by Ultra High Power Electric Arc Furnaces (UHP-EAF). For simulation it was use two electric arc models, depending on the nonlinearity of the electric arc. The models are implementing in PSCAD EMTDC simulation program, a program dedicated to power systems. The simulation results are comparing with measurements made in an industrial plant in Romania.