A METHOD OF WAVELET ANALYSIS OF TIME SERIES OF PARAMETERS OF DIELECTRIC ABSORPTION OF ELECTRICAL INSULATING STRUCTURES
Introduction. In the objects of control there are always a number of interfaces, for example, solid insulation – electrode. On contacting surfaces, free surface charges are transferred. Surface conductivity leads to fluctuations in the measured values of the capacitance and the tangent of the dielec...
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National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine
2020
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| Назва журналу: | Electrical Engineering & Electromechanics |
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Electrical Engineering & Electromechanics| id |
eiekhpieduua-article-201168 |
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ojs |
| institution |
Electrical Engineering & Electromechanics |
| baseUrl_str |
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| datestamp_date |
2020-04-21T20:42:19Z |
| collection |
OJS |
| language |
English Ukrainian |
| topic |
dielectric absorption parameters capacitance dielectric loss tangent spectrum of time series low-pass filter decomposition levels approximation and detail wavelet transform 621.319 |
| spellingShingle |
dielectric absorption parameters capacitance dielectric loss tangent spectrum of time series low-pass filter decomposition levels approximation and detail wavelet transform 621.319 Bezprozvannych, G. V. Kostiukov, I. A. A METHOD OF WAVELET ANALYSIS OF TIME SERIES OF PARAMETERS OF DIELECTRIC ABSORPTION OF ELECTRICAL INSULATING STRUCTURES |
| topic_facet |
параметры диэлектрической абсорбции емкость тангенс угла диэлектрических потерь спектр временных рядов фильтр низких частот уровни разложения аппроксимация и детализация вейвлет преобразование 621.319 dielectric absorption parameters capacitance dielectric loss tangent spectrum of time series low-pass filter decomposition levels approximation and detail wavelet transform 621.319 |
| format |
Article |
| author |
Bezprozvannych, G. V. Kostiukov, I. A. |
| author_facet |
Bezprozvannych, G. V. Kostiukov, I. A. |
| author_sort |
Bezprozvannych, G. V. |
| title |
A METHOD OF WAVELET ANALYSIS OF TIME SERIES OF PARAMETERS OF DIELECTRIC ABSORPTION OF ELECTRICAL INSULATING STRUCTURES |
| title_short |
A METHOD OF WAVELET ANALYSIS OF TIME SERIES OF PARAMETERS OF DIELECTRIC ABSORPTION OF ELECTRICAL INSULATING STRUCTURES |
| title_full |
A METHOD OF WAVELET ANALYSIS OF TIME SERIES OF PARAMETERS OF DIELECTRIC ABSORPTION OF ELECTRICAL INSULATING STRUCTURES |
| title_fullStr |
A METHOD OF WAVELET ANALYSIS OF TIME SERIES OF PARAMETERS OF DIELECTRIC ABSORPTION OF ELECTRICAL INSULATING STRUCTURES |
| title_full_unstemmed |
A METHOD OF WAVELET ANALYSIS OF TIME SERIES OF PARAMETERS OF DIELECTRIC ABSORPTION OF ELECTRICAL INSULATING STRUCTURES |
| title_sort |
method of wavelet analysis of time series of parameters of dielectric absorption of electrical insulating structures |
| title_alt |
МЕТОД ВЕЙВЛЕТ АНАЛИЗА ВРЕМЕННЫХ РЯДОВ ПАРАМЕТРОВ ДИЭЛЕКТРИЧЕСКОЙ АБСОРБЦИИ ЭЛЕКТРОИЗОЛЯЦИОННЫХ КОНСТРУКЦИЙ |
| description |
Introduction. In the objects of control there are always a number of interfaces, for example, solid insulation – electrode. On contacting surfaces, free surface charges are transferred. Surface conductivity leads to fluctuations in the measured values of the capacitance and the tangent of the dielectric loss angle of solid insulation, the state of which is determined. The drain off of the surface charge does not lead to a decrease in the scatter of the measured dielectric absorption parameters. One of the main reasons for the significant time spread of the dielectric absorption parameters, and to a large extent (three orders of magnitude) of the dielectric loss tangent are tribo charges caused by triboelectrification of cable structural elements. Tribo charges cause internal noise in electrical insulating structures, masking processes in the polymer insulation itself. Purpose. Substantiation of a method for analyzing the time series of dielectric absorption parameters, which provides increased accuracy of control and diagnostics of solid polymer insulation of electrical insulation structures based on filtering experimental data using wavelet transform. Methodology. The inefficiency of filtering the spectra of time series using a low filter based on the direct Fourier transform is shown. Multilevel wavelet decomposition of the time series of parameters is presented, and the efficiency of applying wavelet transforms to identify high-frequency and low-frequency components in the measured values. Practical value. The method of analyzing the time series of dielectric absorption parameters using the wavelet transform, proposed for the first time, makes it possible to increase the accuracy of monitoring and diagnostics of solid polymer insulation both at the manufacturing stage and in the operation of electrical insulating structures. This method is the basis for creating a database of control results for assessing the state of solid polymer insulation of electrical insulation structures, in particular, power and information cables. |
| publisher |
National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine |
| publishDate |
2020 |
| url |
http://eie.khpi.edu.ua/article/view/2074-272X.2020.2.08 |
| work_keys_str_mv |
AT bezprozvannychgv amethodofwaveletanalysisoftimeseriesofparametersofdielectricabsorptionofelectricalinsulatingstructures AT kostiukovia amethodofwaveletanalysisoftimeseriesofparametersofdielectricabsorptionofelectricalinsulatingstructures AT bezprozvannychgv metodvejvletanalizavremennyhrâdovparametrovdiélektričeskojabsorbciiélektroizolâcionnyhkonstrukcij AT kostiukovia metodvejvletanalizavremennyhrâdovparametrovdiélektričeskojabsorbciiélektroizolâcionnyhkonstrukcij AT bezprozvannychgv methodofwaveletanalysisoftimeseriesofparametersofdielectricabsorptionofelectricalinsulatingstructures AT kostiukovia methodofwaveletanalysisoftimeseriesofparametersofdielectricabsorptionofelectricalinsulatingstructures |
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2025-07-17T11:48:01Z |
| last_indexed |
2025-07-17T11:48:01Z |
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| spelling |
eiekhpieduua-article-2011682020-04-21T20:42:19Z A METHOD OF WAVELET ANALYSIS OF TIME SERIES OF PARAMETERS OF DIELECTRIC ABSORPTION OF ELECTRICAL INSULATING STRUCTURES МЕТОД ВЕЙВЛЕТ АНАЛИЗА ВРЕМЕННЫХ РЯДОВ ПАРАМЕТРОВ ДИЭЛЕКТРИЧЕСКОЙ АБСОРБЦИИ ЭЛЕКТРОИЗОЛЯЦИОННЫХ КОНСТРУКЦИЙ Bezprozvannych, G. V. Kostiukov, I. A. параметры диэлектрической абсорбции емкость тангенс угла диэлектрических потерь спектр временных рядов фильтр низких частот уровни разложения аппроксимация и детализация вейвлет преобразование 621.319 dielectric absorption parameters capacitance dielectric loss tangent spectrum of time series low-pass filter decomposition levels approximation and detail wavelet transform 621.319 Introduction. In the objects of control there are always a number of interfaces, for example, solid insulation – electrode. On contacting surfaces, free surface charges are transferred. Surface conductivity leads to fluctuations in the measured values of the capacitance and the tangent of the dielectric loss angle of solid insulation, the state of which is determined. The drain off of the surface charge does not lead to a decrease in the scatter of the measured dielectric absorption parameters. One of the main reasons for the significant time spread of the dielectric absorption parameters, and to a large extent (three orders of magnitude) of the dielectric loss tangent are tribo charges caused by triboelectrification of cable structural elements. Tribo charges cause internal noise in electrical insulating structures, masking processes in the polymer insulation itself. Purpose. Substantiation of a method for analyzing the time series of dielectric absorption parameters, which provides increased accuracy of control and diagnostics of solid polymer insulation of electrical insulation structures based on filtering experimental data using wavelet transform. Methodology. The inefficiency of filtering the spectra of time series using a low filter based on the direct Fourier transform is shown. Multilevel wavelet decomposition of the time series of parameters is presented, and the efficiency of applying wavelet transforms to identify high-frequency and low-frequency components in the measured values. Practical value. The method of analyzing the time series of dielectric absorption parameters using the wavelet transform, proposed for the first time, makes it possible to increase the accuracy of monitoring and diagnostics of solid polymer insulation both at the manufacturing stage and in the operation of electrical insulating structures. This method is the basis for creating a database of control results for assessing the state of solid polymer insulation of electrical insulation structures, in particular, power and information cables. Установлено влияние поверхностных и трибозарядов на результаты контроля емкости и тангенса угла диэлектрических потерь экранированных и неэкранированных кабелей с полимерной изоляцией. Показана неэффективность фильтрации спектров временных рядов с помощью фильтра низких частот на основе прямого преобразования Фурье. На примере неэкранированного кабеля представлено многоуровневое вейвлет разложение временных рядов параметров и показана эффективность применения вейвлет преобразования для выявления высокочастотных и низкочастотных компонент в измеренных значениях. Обоснован оптимальный уровень разложения параметров диэлектрической абсорбции неэкранированного и экранированного кабелей с помощью вейвлета Добиши 12 порядка. Показана эффективность метода вейвлет анализа временных рядов параметров диэлектрической абсорбции, обеспечивающего повышение точности контроля и диагностики твердой полимерной изоляции электроизоляционных конструкций. National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2020-04-21 Article Article Peer-reviewed Article application/pdf application/pdf http://eie.khpi.edu.ua/article/view/2074-272X.2020.2.08 10.20998/2074-272X.2020.2.08 Electrical Engineering & Electromechanics; No. 2 (2020); 52-58 Электротехника и Электромеханика; № 2 (2020); 52-58 Електротехніка і Електромеханіка; № 2 (2020); 52-58 2309-3404 2074-272X en uk http://eie.khpi.edu.ua/article/view/2074-272X.2020.2.08/201186 http://eie.khpi.edu.ua/article/view/2074-272X.2020.2.08/201187 Copyright (c) 2020 G. V. Bezprozvannych, I. A. Kostiukov https://creativecommons.org/licenses/by-nc/4.0 |