Methodology for modeling steady state thermal behavior of current-carrying systems of electrical and electronic apparatus

Authors

DOI:

https://doi.org/10.15588/1607-6761-2025-4-1

Keywords:

current-carrying system, thermal behavior, current-carrying component, heating, temperature-rise, heat flow

Abstract

Purpose. Develop a procedure for constructing models of the stationary thermal behavior of current-carrying systems of electrical and power electronic apparatus.

Methodology. The development of the procedure was carried out using methods of analysis and synthesis of current-carrying systems of apparatus, as well as classical methods to solve differential equations.

Findings. Structural analysis of the current-carrying systems of real electrical and power electronic apparatus has shown that they contain a certain set of typical current-carrying components, namely, conductors of invariable cross-sectional area (rods of a certain length or semi-infinite ones); contacts of various types, power semiconductor devices. These components have a certain mathematical model that establishes their boundary parameters: temperatures and heat flows in a stationary thermal behavior. Using the property of temperature field continuity, it is possible to construct a mathematical model of a current-carrying system of a rather complex structure, which contains the foregoing current-carrying components.

Originality. A methodology has been developed for constructing mathematical models of the stationary thermal behavior of current-carrying systems of apparatus that contain various current-carrying components: conductors, contacts, and power semiconductor devices.

Practical value. The proposed methodology enables us to construct a mathematical model of the current-carrying system of the apparatus, which, in turn, makes it possible to determine its stationary thermal behavior with consideration of the system configuration.

Author Biographies

O.V. Blyznіakov, National University ”Zaporizhzhia Polytechnic”

Ph.D, Associate professor, Associate professor of the electric and electronic apparatus department of the National University “Zaporizhzhia Polytechnik”, Zaporizhzhia

V.V. Zinovkin, National University ”Zaporizhzhia Polytechnic”

Sci.D, Professor, Professor of the electric drive and automatic electric installations department of the National University “Zaporizhzhia Polytechnik”, Zaporizhzhia

D.O. Blyzniakov, National University ”Zaporizhzhia Polytechnic”

postgraduate student of the electrical machines department of the National University “Zaporizhzhia Polytechnik”, Zaporizhzhia

References

Osnovy teorii elektricheskih apparatov: Ucheb. dlja vuzov. Pod red. I.S. Taeva. (1987). M. Vysshaja shkola, 496

Chebovskij O.G., Moiseev L.G., Nedoshivin R.P. (1985). Silovye poluprovodnikovye pribory: Spravochnik. M. Energoatomizdat, 400.

Butkevich G.V., Degtjar' V.G., Slivinskaja A.G. (1987). Zadachnik po elektricheskim apparatam. – M.: Vysshaja shkola, 232.

Spravochnik po raschetu i konstruirovaniju kontaktn-yh chastej sil'notochnyh elektricheskih apparatov. Pod red. V.V. Afanas'eva. (1988). L.: Energoatomiz-dat, 384.

Bogdanov L. D. i dr. (1978). Metodika rascheta na nagrev kontaktnyh sistem perekljuchajushhih ustro-jstv transformatorov [Procedure for calculation of heating the contact systems of transformer tap-changers]. Elektrotehnicheskaja promyshlennost'. Apparaty vysokogo naprjazhenija, transformatory, silovye kondensatory, 1(81), 8–12.

Karahan M., Varol S. H., Kalenderli Ӧ. (2009). Ther-mal Analysis of Power Cables Using Finite Element Method and Current-carrying Capacity Evaluation. Int. J. Engng Ed. 25, 6, 1158–1165.

Jehan, H.S., Mohamed, A.M., Doaa K.I., Essam E.Z. (2017). Thermal analysis of high-voltage cables with several types of insulation for different configura-tions in the presence of harmonics. IET Generation, Transmission & Distribution. 11, 14, 3439–3448. DOI: 10.1049/iet-gtd.2016.0862

Nie, Y.; Chen, D., Zheng, S., Xu, X., Wang, X., Wu, Z. (2024). Simulation and Calculation of Temperature Field and Current-Carrying Capacity of Power Ca-bles under Different Laying Methods. Energies, 17, 4611. https://doi.org/10.3390/en17184611

l El-Faraskoury, A., Ghoneim, S., Alaboudy A. K., Sa-lem R., Ward, S. A. (2012). Practical and Theoretical Investigation of Current Carrying Capacity (Ampaci-ty) of Underground Cables. Advances in Electrical Engineering Systems. 1, 3, 163–169. ISSN 2167-633X

Yong X, Xin Z, Ke Z and Feiyue T. (2025). Investiga-tion on temperature characteristics of high voltage cable joints. Frontiers in Physics, 13:1584225, doi: 10.3389/fphy.2025.1584225

Andrienko, P.D., Blyzniakov, О. V., Kotsur, М.І. (2021). Switching Transients in Electrical and Elec-tronic Apparatus: Textbook / P.D. Andrienko,– Za-porizhzhia, NU «Zaporizhzhia polytechnic», 128. ISBN 978-617-529-309-6.

Blyzniakov О. V. (2014). Thermal Behavior Analysis of Power Electric and Electronic Equipment: Textbook. Za-porizhzhja, ZNTU, 146.

Rassal's'kyj O.M. (2005). Analiz i rozrahunok teplovyh rezhymiv sylovogo elektroustatukvannja: Navchal'nyj posibnyk. Zaporizhzhja, ZNTU, 146.

Slade P.G. (2014). Electrical Contacts: Principles and Applications / Edited by Paul G. Slade, CRC Press Taylor & Francis Group, LLC, 1257.

Sueker, Keith H. (2005). Power electronics design: a practitioner's guide. USA, Newnes is an imprint of Elsevier, 272.

Braunovich, M., Myshkin, N.K., Konchits, V.V. (2007). Electrical contacts: Fundamentals, applica-tions and Technology. CRC Press, Taylor & Francis Group, LLC, 660.

Schlegel, S., Gatzsche, M., Hidmann, Ch., Israel T. (2024). Contact and Long-Term Behavior of Current-Carrying Connections in Electrical Engineering. Springer Berlin, Heidelberg, XXIX, 283. DOI: 10.1007/978-3-662-69644-6

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Published

2025-12-26

How to Cite

Blyznіakov O., Zinovkin, V., & Blyzniakov, D. (2025). Methodology for modeling steady state thermal behavior of current-carrying systems of electrical and electronic apparatus. Electrical Engineering and Power Engineering, (4), 7–14. https://doi.org/10.15588/1607-6761-2025-4-1

Issue

No. 4 (2025): Electrical Engineering and Power Engineering

Section

Electrotechnics

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Copyright (c) 2025 O.V. Blyznіakov, V.V. Zinovkin, D.O. Blyzniakov

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