## High-frequency periodic processes in two-winding power transformers

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Authors:

M.S.Seheda, orcid.org/0000-0001-8459-5758, Lviv Polytechnic National University, Lviv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

P.F.Gogolyuk, orcid.org/0000-0003-0002-4638, Lviv Polytechnic National University, Lviv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Y.V.Blyznak, orcid.org/0000-0002-4914-2283, Lviv Polytechnic National University, Lviv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2021, (6): 096 - 100

https://doi.org/10.33271/nvngu/2021-6/096

Abstract:

Purpose.
Mathematical modeling of high-frequency periodic processes in winding power transformers to improve the technology of their design and operation.

Methodology.
The methods of the formation of mathematical models for the research of high-frequency periodic processes in transformers and methods of solving systems of partial differential equations are applied.

Findings.
The mathematical model for the research of high-frequency periodic processes in two-winding transformers, with adequate considering of electromagnetic connections of windings and structural parameters of transformers, is created.

Originality.
To form a mathematical model for the research of high-frequency periodic processes, a substitute scheme of a two-windings transformer, taking into account the parameters of the electric and magnetic circuits of windings and electromagnetic connections between them, is proposed.

Practical value.
The mathematical model, which allows analyzing the voltage distribution in the transformer windings for high-frequency periodic processes in windings, and adjusting their insulating abilities, is created.

Keywords:
high-frequency periodic process, mathematical modeling, transformer, boundary value problem, ordinary differential equations

References.

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7. Seheda, M., Hoholyuk, O., Gogolyuk, P., & Blyznak, Y. (2020). Mathematical model of periodic wave processes of the windings of high-frequency power sources. 15 International Conference Advancet trends in Radioelectronics, Telecommunications and Computer Engineering, Slavske-Lviv, Ukraine, February 2529. https://doi.org/10.1109/TCSET49122.2020.235575.

8. Seheda, M.S., Cheremnykh, Y.V., Gogolyuk, P.F., & Blyznak,Y.V. (2020). Mathematical model of wave processes in two-winding transformers. Tekhnichna Elektrodynamika, (6), 63-67. https://doi.org/10.15407/techned2020.06.005.

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