Partial Discharge Localization Using Time Reversal: Application to Power Transformers
In this work, we present a novel technique to locate partial discharge (PD) sources based on the concept of time reversal. The localization of the PD sources is of interest for numerous applications, including the monitoring of power transformers, Gas Insulated Substations, electric motors, super ca...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/5/1419 |
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| author | Hamidreza Karami Mohammad Azadifar Amirhossein Mostajabi Marcos Rubinstein Hossein Karami Gevork B. Gharehpetian Farhad Rachidi |
| author_facet | Hamidreza Karami Mohammad Azadifar Amirhossein Mostajabi Marcos Rubinstein Hossein Karami Gevork B. Gharehpetian Farhad Rachidi |
| author_sort | Hamidreza Karami |
| collection | DOAJ |
| description | In this work, we present a novel technique to locate partial discharge (PD) sources based on the concept of time reversal. The localization of the PD sources is of interest for numerous applications, including the monitoring of power transformers, Gas Insulated Substations, electric motors, super capacitors, or any other device or system that can suffer from PDs. To the best of the authors’ knowledge, this is the first time that the concept of time reversal is applied to localize PD sources. Partial discharges emit both electromagnetic and acoustic waves. The proposed method can be used to localize PD sources using either electromagnetic or acoustic waves. As a proof of concept, we present only the results for the electromagnetic case. The proposed method consists of three general steps: (1) recording of the waves from the PD source(s) via proper sensor(s), (2) the time-reversal and back-propagation of the recorded signal(s) into the medium using numerical simulations, and (3) the localization of focal spots. We demonstrate that, unlike the conventional techniques based on the time difference of arrival, the proposed time reversal method can accurately localize PD sources using only one sensor. As a result, the proposed method is much more cost effective compared to existing techniques. The performance of the proposed method is tested considering practical scenarios in which none of the former developed methods can provide reasonable results. Moreover, the proposed method has the unique advantage of being able to locate multiple simultaneous PD sources and doing so with a single sensor. The efficiency of the method against the variation in the polarization of the PDs, their length, and against environmental noise is also investigated. Finally, the validity of the proposed procedure is tested against experimental observations. |
| first_indexed | 2024-04-13T08:24:46Z |
| format | Article |
| id | doaj.art-9b4ee67535ff4039b3ac7f745dd2ddfb |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T08:24:46Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-9b4ee67535ff4039b3ac7f745dd2ddfb2022-12-22T02:54:32ZengMDPI AGSensors1424-82202020-03-01205141910.3390/s20051419s20051419Partial Discharge Localization Using Time Reversal: Application to Power TransformersHamidreza Karami0Mohammad Azadifar1Amirhossein Mostajabi2Marcos Rubinstein3Hossein Karami4Gevork B. Gharehpetian5Farhad Rachidi6Electromagnetic Compatibility Laboratory, Swiss Federal Institute of Technology (EPFL), 1015 Lausanne, SwitzerlandUniversity of Applied Sciences of Western Switzerland (HES-SO), 1400 Yverdon-les-Bains, SwitzerlandElectromagnetic Compatibility Laboratory, Swiss Federal Institute of Technology (EPFL), 1015 Lausanne, SwitzerlandUniversity of Applied Sciences of Western Switzerland (HES-SO), 1400 Yverdon-les-Bains, SwitzerlandHigh-Voltage Research Group, Niroo Research Institute, 14665-517 Tehran, IranElectrical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), 15914 Tehran, IranElectromagnetic Compatibility Laboratory, Swiss Federal Institute of Technology (EPFL), 1015 Lausanne, SwitzerlandIn this work, we present a novel technique to locate partial discharge (PD) sources based on the concept of time reversal. The localization of the PD sources is of interest for numerous applications, including the monitoring of power transformers, Gas Insulated Substations, electric motors, super capacitors, or any other device or system that can suffer from PDs. To the best of the authors’ knowledge, this is the first time that the concept of time reversal is applied to localize PD sources. Partial discharges emit both electromagnetic and acoustic waves. The proposed method can be used to localize PD sources using either electromagnetic or acoustic waves. As a proof of concept, we present only the results for the electromagnetic case. The proposed method consists of three general steps: (1) recording of the waves from the PD source(s) via proper sensor(s), (2) the time-reversal and back-propagation of the recorded signal(s) into the medium using numerical simulations, and (3) the localization of focal spots. We demonstrate that, unlike the conventional techniques based on the time difference of arrival, the proposed time reversal method can accurately localize PD sources using only one sensor. As a result, the proposed method is much more cost effective compared to existing techniques. The performance of the proposed method is tested considering practical scenarios in which none of the former developed methods can provide reasonable results. Moreover, the proposed method has the unique advantage of being able to locate multiple simultaneous PD sources and doing so with a single sensor. The efficiency of the method against the variation in the polarization of the PDs, their length, and against environmental noise is also investigated. Finally, the validity of the proposed procedure is tested against experimental observations.https://www.mdpi.com/1424-8220/20/5/1419time-reversalpartial dischargesource localizationinsulation dielectricpower transformers |
| spellingShingle | Hamidreza Karami Mohammad Azadifar Amirhossein Mostajabi Marcos Rubinstein Hossein Karami Gevork B. Gharehpetian Farhad Rachidi Partial Discharge Localization Using Time Reversal: Application to Power Transformers Sensors time-reversal partial discharge source localization insulation dielectric power transformers |
| title | Partial Discharge Localization Using Time Reversal: Application to Power Transformers |
| title_full | Partial Discharge Localization Using Time Reversal: Application to Power Transformers |
| title_fullStr | Partial Discharge Localization Using Time Reversal: Application to Power Transformers |
| title_full_unstemmed | Partial Discharge Localization Using Time Reversal: Application to Power Transformers |
| title_short | Partial Discharge Localization Using Time Reversal: Application to Power Transformers |
| title_sort | partial discharge localization using time reversal application to power transformers |
| topic | time-reversal partial discharge source localization insulation dielectric power transformers |
| url | https://www.mdpi.com/1424-8220/20/5/1419 |
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