Analyzing the Relationship Between UHF Partial Discharge Signal Features and Transferred Charge
The ultra-high frequency (UHF) technique offers significant advantages over the conventional partial discharge (PD) measurement method, particularly for online monitoring, 3D localization, and immunity against noise. However, its primary limitation lies in the challenge of calibration due to the imp...
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| Format: | Article |
| Language: | English |
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Amirkabir University of Technology
2024-07-01
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| Series: | AUT Journal of Electrical Engineering |
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| Online Access: | https://eej.aut.ac.ir/article_5380_a6b55db1ef0c7ada563d1a83d9349401.pdf |
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| author | vahid javandel Asghar Akbari Azirani Mohammad Ardebili Peter Werle |
| author_facet | vahid javandel Asghar Akbari Azirani Mohammad Ardebili Peter Werle |
| author_sort | vahid javandel |
| collection | DOAJ |
| description | The ultra-high frequency (UHF) technique offers significant advantages over the conventional partial discharge (PD) measurement method, particularly for online monitoring, 3D localization, and immunity against noise. However, its primary limitation lies in the challenge of calibration due to the impact of various factors such as PD source locations, antenna characteristics, and transformer structures including, active part and tank wall, on the received UHF signals. Currently established parameters such as signals peak-to-peak and energy of signals do not provide a meaningful correlation between received UHF signals strength and factors such as distance and antenna radiation pattern. Addressing these gaps, this paper introduces a novel parameter: the first arrived signal (FAS), derived from the short-time Fourier transform (STFT) of UHF signals. Experimental results demonstrated the capability of the FAS to correlate meaningfully between signal strength and distance from the source, as well as antenna radiation pattern and polarization. The proposed parameter is then utilized to estimate conventional transferred charge using the received UHF signals. Results indicate promising estimation accuracy, particularly when electromagnetic waves directly reach the antenna. This approach offers the potential for a more precise estimation of conventional PD transferred charge, enhancing the capabilities of the UHF method in assessing insulation system health conditions. |
| format | Article |
| id | doaj-art-20795d96b6024a59a1bbb280ecda4ee7 |
| institution | Kabale University |
| issn | 2588-2910 2588-2929 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Amirkabir University of Technology |
| record_format | Article |
| series | AUT Journal of Electrical Engineering |
| spelling | doaj-art-20795d96b6024a59a1bbb280ecda4ee72025-08-20T03:27:43ZengAmirkabir University of TechnologyAUT Journal of Electrical Engineering2588-29102588-29292024-07-0156347949410.22060/eej.2024.22863.55635380Analyzing the Relationship Between UHF Partial Discharge Signal Features and Transferred Chargevahid javandel0Asghar Akbari Azirani1Mohammad Ardebili2Peter Werle3Department of Electrical Engineering, K. N. Toosi University of Technology, Tehran, IranDepartment of Electrical Engineering, K. N. Toosi University of Technology, Tehran, IranDepartment of Electrical Engineering, K. N. Toosi University of Technology, Tehran, IranHigh Voltage Engineering and Asset Management, Schering-Institute, Leibniz Universität, Hannover, GermanyThe ultra-high frequency (UHF) technique offers significant advantages over the conventional partial discharge (PD) measurement method, particularly for online monitoring, 3D localization, and immunity against noise. However, its primary limitation lies in the challenge of calibration due to the impact of various factors such as PD source locations, antenna characteristics, and transformer structures including, active part and tank wall, on the received UHF signals. Currently established parameters such as signals peak-to-peak and energy of signals do not provide a meaningful correlation between received UHF signals strength and factors such as distance and antenna radiation pattern. Addressing these gaps, this paper introduces a novel parameter: the first arrived signal (FAS), derived from the short-time Fourier transform (STFT) of UHF signals. Experimental results demonstrated the capability of the FAS to correlate meaningfully between signal strength and distance from the source, as well as antenna radiation pattern and polarization. The proposed parameter is then utilized to estimate conventional transferred charge using the received UHF signals. Results indicate promising estimation accuracy, particularly when electromagnetic waves directly reach the antenna. This approach offers the potential for a more precise estimation of conventional PD transferred charge, enhancing the capabilities of the UHF method in assessing insulation system health conditions.https://eej.aut.ac.ir/article_5380_a6b55db1ef0c7ada563d1a83d9349401.pdfultra high-frequency techniquepartial dischargepower transformershort time fourier transform (stft)first arrived signal (fas) |
| spellingShingle | vahid javandel Asghar Akbari Azirani Mohammad Ardebili Peter Werle Analyzing the Relationship Between UHF Partial Discharge Signal Features and Transferred Charge AUT Journal of Electrical Engineering ultra high-frequency technique partial discharge power transformer short time fourier transform (stft) first arrived signal (fas) |
| title | Analyzing the Relationship Between UHF Partial Discharge Signal Features and Transferred Charge |
| title_full | Analyzing the Relationship Between UHF Partial Discharge Signal Features and Transferred Charge |
| title_fullStr | Analyzing the Relationship Between UHF Partial Discharge Signal Features and Transferred Charge |
| title_full_unstemmed | Analyzing the Relationship Between UHF Partial Discharge Signal Features and Transferred Charge |
| title_short | Analyzing the Relationship Between UHF Partial Discharge Signal Features and Transferred Charge |
| title_sort | analyzing the relationship between uhf partial discharge signal features and transferred charge |
| topic | ultra high-frequency technique partial discharge power transformer short time fourier transform (stft) first arrived signal (fas) |
| url | https://eej.aut.ac.ir/article_5380_a6b55db1ef0c7ada563d1a83d9349401.pdf |
| work_keys_str_mv | AT vahidjavandel analyzingtherelationshipbetweenuhfpartialdischargesignalfeaturesandtransferredcharge AT asgharakbariazirani analyzingtherelationshipbetweenuhfpartialdischargesignalfeaturesandtransferredcharge AT mohammadardebili analyzingtherelationshipbetweenuhfpartialdischargesignalfeaturesandtransferredcharge AT peterwerle analyzingtherelationshipbetweenuhfpartialdischargesignalfeaturesandtransferredcharge |