Analysis of Interturn Faults on Transformer Based on Electromagnetic-Mechanical Coupling
A running transformer frequently experiences interturn faults; they are typically difficult to detect in their early stages but eventually progress to interturn short circuits, which cause damage to the transformer. Therefore, finding out the fault mechanism of the full interturn fault process can p...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/1/512 |
| _version_ | 1797625810218123264 |
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| author | Nan Zhu Ji Li Lei Shao Hongli Liu Lei Ren Lihua Zhu |
| author_facet | Nan Zhu Ji Li Lei Shao Hongli Liu Lei Ren Lihua Zhu |
| author_sort | Nan Zhu |
| collection | DOAJ |
| description | A running transformer frequently experiences interturn faults; they are typically difficult to detect in their early stages but eventually progress to interturn short circuits, which cause damage to the transformer. Therefore, finding out the fault mechanism of the full interturn fault process can provide a theoretical basis for transformer fault detection. In this paper, an electromagnetic-solid mechanics coupled finite element model consistent with an actual oil-immersed three-phase transformer is established. The transient process of winding from interturn discharge to interturn short circuit is simulated to study the electromagnetic characteristics as well as the mechanical characteristics during transformer failure. The model parameters of the transformer are simulated to obtain the fault current, electromagnetic parameters and other performance parameters to study the characteristics of the magnetic field and coil force when interturn faults occur. Finally, the vibration of the transformer casing is used to detect as well as diagnose the transformer fault situation, providing a theoretical basis for the study of transformer detection and diagnosis capability improvement measures. |
| first_indexed | 2024-03-11T10:01:44Z |
| format | Article |
| id | doaj.art-33b06772bf2a47c7a16c601ec419b395 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T10:01:44Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-33b06772bf2a47c7a16c601ec419b3952023-11-16T15:20:11ZengMDPI AGEnergies1996-10732023-01-0116151210.3390/en16010512Analysis of Interturn Faults on Transformer Based on Electromagnetic-Mechanical CouplingNan Zhu0Ji Li1Lei Shao2Hongli Liu3Lei Ren4Lihua Zhu5School of Electrical Engineering and Automation, Tianjin University of Technology, Tianjin 300384, ChinaTianjin Key Laboratory for Control Theory & Application in Complicated Systems, Tianjin 300384, ChinaTianjin Key Laboratory for Control Theory & Application in Complicated Systems, Tianjin 300384, ChinaTianjin Key Laboratory for Control Theory & Application in Complicated Systems, Tianjin 300384, ChinaTianjin Key Laboratory for Control Theory & Application in Complicated Systems, Tianjin 300384, ChinaTianjin Key Laboratory for Control Theory & Application in Complicated Systems, Tianjin 300384, ChinaA running transformer frequently experiences interturn faults; they are typically difficult to detect in their early stages but eventually progress to interturn short circuits, which cause damage to the transformer. Therefore, finding out the fault mechanism of the full interturn fault process can provide a theoretical basis for transformer fault detection. In this paper, an electromagnetic-solid mechanics coupled finite element model consistent with an actual oil-immersed three-phase transformer is established. The transient process of winding from interturn discharge to interturn short circuit is simulated to study the electromagnetic characteristics as well as the mechanical characteristics during transformer failure. The model parameters of the transformer are simulated to obtain the fault current, electromagnetic parameters and other performance parameters to study the characteristics of the magnetic field and coil force when interturn faults occur. Finally, the vibration of the transformer casing is used to detect as well as diagnose the transformer fault situation, providing a theoretical basis for the study of transformer detection and diagnosis capability improvement measures.https://www.mdpi.com/1996-1073/16/1/512transformermulti-physical field couplinginterturn faulttransient process |
| spellingShingle | Nan Zhu Ji Li Lei Shao Hongli Liu Lei Ren Lihua Zhu Analysis of Interturn Faults on Transformer Based on Electromagnetic-Mechanical Coupling Energies transformer multi-physical field coupling interturn fault transient process |
| title | Analysis of Interturn Faults on Transformer Based on Electromagnetic-Mechanical Coupling |
| title_full | Analysis of Interturn Faults on Transformer Based on Electromagnetic-Mechanical Coupling |
| title_fullStr | Analysis of Interturn Faults on Transformer Based on Electromagnetic-Mechanical Coupling |
| title_full_unstemmed | Analysis of Interturn Faults on Transformer Based on Electromagnetic-Mechanical Coupling |
| title_short | Analysis of Interturn Faults on Transformer Based on Electromagnetic-Mechanical Coupling |
| title_sort | analysis of interturn faults on transformer based on electromagnetic mechanical coupling |
| topic | transformer multi-physical field coupling interturn fault transient process |
| url | https://www.mdpi.com/1996-1073/16/1/512 |
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