Optimizing Extremal Control of Power Consumption of an Electric Arc Furnace: A Method for Selecting an Efficiency Criterion and Its Application

Parsunkin, B. N.; Андреев, С. М.; Логунова, О. С.

doi:10.1007/s11837-020-04359-2

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…Due to this, there is a decrease in the power of electric losses by 8-12% and an increase in arc power by 3-5%. As shown in [33][34][35][36], the obtained decrease in the dispersion of arc currents leads to a 5-7% decrease in the specific power consumption. In addition to the mentioned improvement of energy efficiency performance, the reduction of arc current dispersion improves electromagnetic compatibility indicators of arc furnace and power grid modes.…”

Section: Research Resultsmentioning

confidence: 98%

Double-Circuit Adaptive System of Fuzzy Phase-Autonomous and Energy-Efficient Control of Arc Furnace Electric Modes

Paranchuk

Lis

2023

Energies

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The article provides an overview of the existing structures of fuzzy model systems for arc length control and optimal control of arc steel-melting furnaces (ASFs) electrical mode. The analysis of known adaptive optimal control strategies of alternating current steel-melting arc furnaces modes according to complex criteria of energy efficiency, energy saving and reliability was performed. Expedient system engineering solutions are proposed for the comprehensive improvement of energy efficiency and electromagnetic compatibility of arc furnaces and the power grid, which are implemented by improving automatic power and arc length control systems. Control principles, indicators of arc length control dynamics, energy efficiency and electromagnetic compatibility of various systems are analyzed. The expediency of using fuzzy control models for comprehensive improvement of dynamics, energy efficiency and electromagnetic compatibility indicators is substantiated. The expediency of implementing simultaneous phase-independent control of arc lengths and fast-acting arc currents control is substantiated. A variant of the double-circuit structure of fuzzy arc lengths control system and implementation of the multi-criteria optimal control strategy of electrical modes (EM) is proposed. The design of fuzzy inference systems for the synthesis of the electrode movement control signal was carried out in order to improve the dynamic accuracy of the ASF electrical mode coordinates stabilization. A computer Simulink model of the developed double-circuit system was created, and studies of the dynamics and energy efficiency indicators when handling deterministic and random perturbations were performed. The obtained results of model studies showed an improvement of the control dynamics quality indicators under the influence of deterministic and random perturbations and an increase in the energy efficiency of ASF EM at various technological stages of melting. The expediency of the practical use of the proposed solutions for operating arc furnaces is substantiated.

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Section: Research Resultsmentioning

confidence: 98%

Double-Circuit Adaptive System of Fuzzy Phase-Autonomous and Energy-Efficient Control of Arc Furnace Electric Modes

Paranchuk

Lis

2023

Energies

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“…At Russian plants, the scrap low quality determines technological errors that lead to re-oxidation of the melt during the smelting of the semi-product in EAF and the need for increased ferroalloys consumption for steel deoxidation in the ladle-furnace unit (LF). A lot of works are devoted to the optimization of the EAF electrical mode and it's control [1][2][3][4][5][6][7][8], there are less works on the topic of the slag mode [9][10][11][12] and the burners and injectors operation [13,14]. Such a number of works devoted to the EAF electrical mode shows the relevance of this direction.…”

Section: Introductionmentioning

confidence: 99%

Laboratory Assessment of the Technogenic Raw Materials Briquettes Effect on the Arc Furnace Electric Mode

Egiazar’yan¹,

Сивцов²,

Tsimbalist³

2022

MSF

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The influence of partially reduced scale briquettes on the arc electrical characteristics in a laboratory single-phase arc furnace is considered. Briquettes were obtained from industrial scale by mixing it with coke production waste and flux-forming additives. Fluxes were selected with aim that their interaction provided the slag homogeneity. During the experiment, the conditions for entering a briquette into an electric arc furnace (EAF) were simulated. That includes imitation of simultaneous melting of briquettes and scrap and the formation of a slag cover (metal was melted, briquette was added, slag was introduced), and imitation adding briquettes to a liquid bath of metal with slag (metal was melted, slag was introduced, briquette was added). A slightly positive effect of the briquettes input on the arc burning conditions was noted, as well as a noticeable effect of slag foaming. It is assumed that a significant content of iron oxides in the briquette will also contribute to the lime accelerated assimilation in the slag, which may somewhat speed up the process of metal refining from phosphorus.

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Double-Circuit Control System of the Electric Mode of an Arc Furnace with a Fuzzy Phase-by-Phase Asymmetrical Adjustment of Arc Lengths

Paranchuk,

Shabatura,

Kuznyetsov

et al. 2023

2023 IEEE 5th International Conference on Modern Electrical and Energy System (MEES)

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Optimizing Extremal Control of Power Consumption of an Electric Arc Furnace: A Method for Selecting an Efficiency Criterion and Its Application

Cited by 3 publications

References 12 publications

Double-Circuit Adaptive System of Fuzzy Phase-Autonomous and Energy-Efficient Control of Arc Furnace Electric Modes

Double-Circuit Adaptive System of Fuzzy Phase-Autonomous and Energy-Efficient Control of Arc Furnace Electric Modes

Laboratory Assessment of the Technogenic Raw Materials Briquettes Effect on the Arc Furnace Electric Mode

Double-Circuit Control System of the Electric Mode of an Arc Furnace with a Fuzzy Phase-by-Phase Asymmetrical Adjustment of Arc Lengths

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