Power quality aspects of arc steel melting furnace. A case study

Using the constant current ‒ constant voltage converters to effectively reduce voltage fluctuations in the power supply systems for electric arc furnaces

“…In the absence of compensating tools, the quality of electricity, according to experimental research in [16,17], does not meet the requirements. Exceeding the permissible value of the flicker by 10 times, as well as the unacceptable values of a current distortion coefficient, may occur at insufficient power system capacity [18].…”

“…The analysis of experimental diagrams of the current of arc steel-melting furnaces of different capacity [10][11][12][13][14][15][16][17][18] reveals significant stochastic dynamics in the CSS arc current change, especially during the initial melting period. These dynamics possess a certain quasi-periodicity; the boundary modes, idling and operational short circuit, under which there is no release of energy in the furnace, occur quite infrequently, especially three-phase.…”