Multi-Physics Coupling Analysis of Vibration and Noise Abnormalities in Transformer under Geomagnetically Induced Current.
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| Title: | Multi-Physics Coupling Analysis of Vibration and Noise Abnormalities in Transformer under Geomagnetically Induced Current. |
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| Authors: | Chao Pan1, Chuanhui Wang1 1249593929@qq.com, Tongrui Fu1, Shoukun Zou1 |
| Source: | Progress in Electromagnetics Research B. 2025, Vol. 112, p43-59. 17p. |
| Subjects: | Power transformers, Earth currents, Mechanical vibration research, Simulation methods & models, Electric power system stability |
| Abstract: | Focusing on the instability problems of power grid transformer caused by geomagnetically induced current (GIC), this paper investigates the multi-physics coupling characteristics of a transformer under GIC. First, the propagation path of GIC is analyzed, and the variation characteristics are further studied based on measurement data. The variational signatures can be characterized by two key parameters: GIC distortion rate (Δk) and distortion time (tτ). A multi-physics coupling model considering GIC distortion is proposed, which includes mechanical domain coupling between electromagnetic and acoustic domains. Simulations are conducted on a three-phase transformer under varying conditions of Δk, tτ, and load factor (η). Then, the spatial-temporal variations of winding current, magnetic leakage, core vibration acceleration, and noise can be analyzed. Results reveal that vibration and noise exhibit abnormal intensification under GIC interference. Meanwhile, dynamic experimental platform is established. And the result is verified through consistency of virtual model and physical entity. On this basis, a nonlinear mapping relationship between Δk and sound pressure level (Lp) is established. Finally, a stability criterion is developed to represent anomalies in terms of thresholds, providing a foundation for situational awareness and full lifecycle management of grid equipment under GIC interference. [ABSTRACT FROM AUTHOR] |
| Copyright of Progress in Electromagnetics Research B is the property of Electromagnetics Academy and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 186817777 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Multi-Physics Coupling Analysis of Vibration and Noise Abnormalities in Transformer under Geomagnetically Induced Current. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Chao+Pan%22">Chao Pan</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Chuanhui+Wang%22">Chuanhui Wang</searchLink><relatesTo>1</relatesTo><i> 1249593929@qq.com</i><br /><searchLink fieldCode="AR" term="%22Tongrui+Fu%22">Tongrui Fu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Shoukun+Zou%22">Shoukun Zou</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Progress+in+Electromagnetics+Research+B%22">Progress in Electromagnetics Research B</searchLink>. 2025, Vol. 112, p43-59. 17p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Power+transformers%22">Power transformers</searchLink><br /><searchLink fieldCode="DE" term="%22Earth+currents%22">Earth currents</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+vibration+research%22">Mechanical vibration research</searchLink><br /><searchLink fieldCode="DE" term="%22Simulation+methods+%26+models%22">Simulation methods & models</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+power+system+stability%22">Electric power system stability</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Focusing on the instability problems of power grid transformer caused by geomagnetically induced current (GIC), this paper investigates the multi-physics coupling characteristics of a transformer under GIC. First, the propagation path of GIC is analyzed, and the variation characteristics are further studied based on measurement data. The variational signatures can be characterized by two key parameters: GIC distortion rate (Δk) and distortion time (tτ). A multi-physics coupling model considering GIC distortion is proposed, which includes mechanical domain coupling between electromagnetic and acoustic domains. Simulations are conducted on a three-phase transformer under varying conditions of Δk, tτ, and load factor (η). Then, the spatial-temporal variations of winding current, magnetic leakage, core vibration acceleration, and noise can be analyzed. Results reveal that vibration and noise exhibit abnormal intensification under GIC interference. Meanwhile, dynamic experimental platform is established. And the result is verified through consistency of virtual model and physical entity. On this basis, a nonlinear mapping relationship between Δk and sound pressure level (Lp) is established. Finally, a stability criterion is developed to represent anomalies in terms of thresholds, providing a foundation for situational awareness and full lifecycle management of grid equipment under GIC interference. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Progress in Electromagnetics Research B is the property of Electromagnetics Academy and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.2528/PIERB25041605 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 17 StartPage: 43 Subjects: – SubjectFull: Power transformers Type: general – SubjectFull: Earth currents Type: general – SubjectFull: Mechanical vibration research Type: general – SubjectFull: Simulation methods & models Type: general – SubjectFull: Electric power system stability Type: general Titles: – TitleFull: Multi-Physics Coupling Analysis of Vibration and Noise Abnormalities in Transformer under Geomagnetically Induced Current. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Chao Pan – PersonEntity: Name: NameFull: Chuanhui Wang – PersonEntity: Name: NameFull: Tongrui Fu – PersonEntity: Name: NameFull: Shoukun Zou IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: 2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 19376472 Numbering: – Type: volume Value: 112 Titles: – TitleFull: Progress in Electromagnetics Research B Type: main |
| ResultId | 1 |
