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Cable line equivalent circuit parameters determination using the instantaneous power components

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Category: Content №2 2024

Last Updated on 01 May 2024

Published on 30 November -0001

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Authors:

O.Bialobrzheskyi*, orcid.org/0000-0003-1669-4580, Kremenchuk Mykhailo Ostrohradskyi National University, Kremenchuk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

O.Todorov, orcid.org/0000-0001-5703-6790, Kremenchuk Mykhailo Ostrohradskyi National University, Kremenchuk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A.Postil, orcid.org/0000-0001-9411-7047, Kremenchuk Mykhailo Ostrohradskyi National University, Kremenchuk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

M.Bezzub, orcid.org/0000-0002-5595-4464, Kremenchuk Mykhailo Ostrohradskyi National University, Kremenchuk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A.Sulym, orcid.org/0000-0001-8144-8971, State Enterprise “Ukrainian Scientific Railway Car Building Research Institute”, Kremenchuk, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2024, (2): 096 - 103

https://doi.org/10.33271/nvngu/2024-2/096

Abstract:

Purpose. Development of a method for determining the cable line substitution scheme parameters based on the components of its instantaneous power.

Methodology. Determination of unknown parameters of the cable line mode using the harmonic balance method. Determination of the U-shaped substitution scheme elements parameters is performed using power harmonics and their balance at the corresponding frequencies. For frequency-dependent elements, it is taken into account that the same power harmonic can be formed by different current and voltage harmonics.

Findings. A method for determining the parameters of the cable line substitution scheme using the power components of its elements is proposed, which is distinguished by the fact that the total number of system equations for determining the parameters can be increased due to the use of power. The study of the proposed method for determining the cable line substitution scheme parameters based on the power components, based on the model compiled in the visual programming package, allowed us to establish that the largest parameter determination error is characteristic of active conduction.

Originality. With the instantaneous power determination of the cable line substitution scheme reactive elements, it was found that during the calculation of the instantaneous power there is a peculiarity of taking into account the voltage harmonic number depending on the combination of harmonic numbers.

Practical value. The proposed method can be developed on the sectioning of the U-shaped line substitution scheme to determine the change in the cable line substitution scheme parameters during its operation without disconnecting the line, unlike existing methods.

Keywords: cable line, power, voltage, harmonics, orthogonal components, harmonic frequency

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