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

 

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DOI: 10.18503/1995-2732-2021-19-2-112-121

Abstract

Problem Statement (Relevance). Nowadays, the vast majority of electric mode control systems for electric arc furnaces and ladle furnaces are not provided with the possibility of using devices for measuring current signals alternative to those supplied in a package of the main technological equipment. As a result, it is of particular relevance to deal with the task of developing universal algorithms for processing current signals as part of an improved electric mode control system. Methods Applied. The research was carried out using a theoretical analysis of the most common methods for measuring electric arc currents, as well as using methods of mathematical modeling. Originality. As a rule, modern electric mode control systems are not provided with the possibility of choosing a source for measuring a current signal. In addition, scientific and technical literature on this topic devoted almost no attention to options for solving the problem. Results. The authors developed a new algorithm for processing of multi-source current signals, which allows the use of signals from current transformers on the primary side of the furnace transformer, current transformers built into the winding of the furnace transformer, as well as Rogowski coils in the electric mode control system with various options for connecting the windings of the furnace transformer. Practical Relevance. The new algorithm for processing of multi-source current signals opens up a wide range of possibilities for the use of alternative sources for measuring current signals, regardless of the method of connecting the windings of the furnace transformer and without the need for additional circuit solutions at the equipment level. As a result, the control system, applying this algorithm, will have a greater potential for implementation in comparison with the existing similar ones.

Keywords

Electric arc furnace, furnace transformer, current transformer, Rogowski coil, current signal processing algorithm.

For citation

Nikolaev A.A., Tulupov P.G., Ivekeev V.S. Design of Universal Algorithms for Processing of Multi-Source Current Signals for an Improved Control System of an Electric Arc Furnace. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2021, vol. 19, no. 2, pp. 112–121. https://doi.org/10.18503/1995-2732-2021-19-2-112-121

Alexander A. Nikolaev – PhD (Eng.), Associate Professor, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0001-5014-4852

Platon G. Tulupov – post graduate student, junior researcher, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Vladimir S. Ivekeev – post graduate student, 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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