DOI: https://doi.org/10.15407/techned2020.06.005

MATHEMATICAL MODEL OF WAVE PROCESSES IN TWO-WINDING TRANSFORMERS

Authors
M.S. Seheda*, Ye.V. Cheremnykh**, P.F. Gogolyuk***, T.A. Mazur****, Y.V. Blyznak*****
Lviv Polytechnic National University,
12, S. Bandera Str., Lviv, 79013, Ukraine,
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* ORCID ID : https://orcid.org/0000-0001-8459-5758
** ORCID ID : https://orcid.org/0000-0002-4621-2426
*** ORCID ID : https://orcid.org/0000-0003-0002-4638
**** ORCID ID : https://orcid.org/0000-0001-5021-4013
***** ORCID ID : https://orcid.org/0000-0002-4914-2283

Abstract

A mathematical model has been developed to study the wave processes of two-winding transformers, taking into account the electromagnetic connections between the turns of the winding and between the windings. To solve differential-integral equations in partial derivatives, a method of separation of variables is proposed. References 12, figures 2.

Key words: transformer winding, mathematical modeling, partial derivatives, distributed parameters, impulse wave, wave processes.

Received: 02.08.2019
Accepted: 29.07.2020
Published: 21.10.2020

References
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2. Isaev Y.N., Startseva E.V., Schekotuev A.V. Investigation of wave processes of transformer windings as electric circuit with distributed parameters. Izvestiya Tomskogo Politekhnicheskogo universiteta. Inzhiniering energoresursov. 2015. Vol. 326. No 8. Pp. 29-35. (Rus)
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8. Seheda M.S., Cheremnykh Y.V., Chimjk І.V., Mazur T.A., Kurylyshyn O.M. Mathematical modelling of stress distribution along the winding transformers under impulse surges. Tekhnichna Elektrodynamika. 2015. No 6. Pp. 8-11. (Ukr)
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10. Seheda M.S., Mazur T.A, Kurylyshyn O.M. Mathematical model for investigation of wave processes in high-voltage double winding transformers. 16th International Conference on Computational Problems of Electrical Engineering (CPEE). Lviv, Ukraine, September 2–5, 2015. Pp. 165-167. DOI: https://doi.org/10.1109/CPEE.2015.7333366
11. Electrical Transient Interaction between Transformers and the Power System. Cigre. April, 2014.
12. Bewley L.B. Traveling waves on transmission systems. Moskwa-Leningrad: ONTI, 1938. 288 p.

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