Abstract
The article is concerned with detailed description of the mathematical model of electrotechnical complex «Electric arc furnace – static var compensator». We chose an electric arc furnace EAF-120 (85 MVA) and SVC-100 Mvar as an object of this research. The model was designed with Simulink Matlab application and makes it possible to provide the wide range of research aimed at analysis of the EAF electrical modes and algorithms of reactive power control for SVC. To demonstrate the possibilities of model, the following graphs were obtained for: electrical characteristics of EAF-120; electric arc current oscillations in the phase ''A''; electrical and technological characteristics of EAF-120 with distribution of operating points; total electric arc power during the transition from one heating stage to another; reactive power of the electrotechnical complex EAF-120 – SVC and voltage on the bus bars of indoor switchgear for different regulating modes of the thyristor-controlled reactor.
Keywords
Mathematical model, electric arc furnace, static var compensator, electrode position control system, reactive power compensation, arc currents random disturbances.
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