ISSN (print) 1995-2732
ISSN (online) 2412-9003

 

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DOI: 10.18503/1995-2732-2020-18-3-58-68

Abstract

Problem Statement (Relevance): In modern industry, when commissioning electric arc furnaces, mathematical models of the electric circuit of the furnace are widely used to solve practical problems. In this case, the adequacy of the model largely depends on the correct determination of the actual parameters of the circuit. Moreover, the methods for determining the parameters are not detailed enough in the Russian literature, and they also have a number of disadvantages. The objective of the study is to develop an improved method for determining the electric circuit parameters of an electric arc furnace based on experimental data obtained directly at the industrial site. Methods Applied: To make the final calculation of the electric circuit parameters, a series of experiments of two-phase and three-phase short circuits with a full immersion of electrodes in the melt is carried out, including recording the results of the experiment using the RES-3 electrical signal recorder. Originality: In Russian and foreign literature, when describing the methods of conducting short circuit tests, control of the relative position of phases is not used, reducing the accuracy of determining the electric circuit parameters. This peculiarity is taken into account in the proposed method. Findings: Based on the results of the short circuit experiments, the electric circuit parameters and the mutual inductance values of the shaft-type electric arc furnace ShP-125 were obtained. Practical Relevance: The results obtained are of a high practical importance, ensuring the fulfillment of energy conditions, when conducting research to identify energy reserves and optimize electrical modes of EAF.

Keywords

Electric arc furnace, ladle furnace, electric arc, electric circuit, electrical mode, energy efficiency, short circuit experiment.

For citation

Nikolaev A.A., Tulupov P.G., Denisevich A.S. An Improved Method of Determining the Electric Circuit Parameters for an Electric Arc Furnace Based on the Experimental Data. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2020, vol. 18, no. 3, pp. 58–68. https://doi.org/10.18503/1995-2732-2020-18-3-58-68

Alexander A. Nikolaev – PhD (Eng.), Associate Professor, Head of the Department of Automated Electric Drive and Mechatronics, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Platon G. Tulupov – postgraduate student, junior researcher, Department of Automated Electric Drive and Mechatronics, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Alexander S. Denisevich – postgraduate student, Department of Automated Electric Drive and Mechatronics, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

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