Analysis of the Demagnetization of a PMSG Using a Coupled Electromagnetic–Fluid–Thermal Numerical Model.
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| Title: | Analysis of the Demagnetization of a PMSG Using a Coupled Electromagnetic–Fluid–Thermal Numerical Model. |
|---|---|
| Authors: | Morón-Monreal, Jorge E.1 (AUTHOR), Martinez-Rios, Francisco J.1 (AUTHOR) fjmartinezr@lalaguna.tecnm.mx, Hernandez, Concepcion1 (AUTHOR), Arjona, Marco A.1 (AUTHOR) |
| Source: | Energies (19961073). Dec2025, Vol. 18 Issue 23, p6149. 30p. |
| Subjects: | Demagnetization, Thermal analysis, Natural heat convection, Computer simulation, Computational fluid dynamics, Energy dissipation, Finite element method, Permanent magnet generators |
| Abstract: | This article presents a multiphysics simulation methodology to predict the temperature-dependent demagnetization phenomenon of a 900 W permanent-magnet synchronous generator (PMSG). For the 2D electromagnetic model, a commercial finite element method (FEM) package was used to determine the power loss distribution under steady-state conditions, accounting for temperature-dependent demagnetization. The thermal analysis was carried out on a 3D model using computational fluid dynamics (CFD) software, where a polyhedral mesh, rotor rotation effects, and turbulent modeling were implemented. Two simulation cases were evaluated: Case 1, electromagnetic losses at constant temperature without FEM-CFD coupling; Case 2, bidirectional FEM-CFD coupling under steady-state conditions. The analysis confirms that in Cases 1 and 2, there is no risk of irreversible demagnetization, thus validating the selection of the permanent magnet (PM) and the design of the PMSG. Additionally, the methodology accurately captured the heat transfer effects resulting from natural convection and turbulent flow in the critical regions. The CFD modeling convergence criteria, based on residuals and flow monitors, demonstrated numerical stability and a satisfactory mesh discretization in both the FEM and CFD domains, providing valid feedback on the PM temperatures. The proposed methodology provides a robust and accurate tool for coupled electromagnetic–fluid–thermal analysis of the PMSG at rated operating conditions. [ABSTRACT FROM AUTHOR] |
| Copyright of Energies (19961073) is the property of MDPI 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 |
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| Header | DbId: egs DbLabel: Engineering Source An: 190517876 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Analysis of the Demagnetization of a PMSG Using a Coupled Electromagnetic–Fluid–Thermal Numerical Model. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Morón-Monreal%2C+Jorge+E%2E%22">Morón-Monreal, Jorge E.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Martinez-Rios%2C+Francisco+J%2E%22">Martinez-Rios, Francisco J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> fjmartinezr@lalaguna.tecnm.mx</i><br /><searchLink fieldCode="AR" term="%22Hernandez%2C+Concepcion%22">Hernandez, Concepcion</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Arjona%2C+Marco+A%2E%22">Arjona, Marco A.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Dec2025, Vol. 18 Issue 23, p6149. 30p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Demagnetization%22">Demagnetization</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+analysis%22">Thermal analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Natural+heat+convection%22">Natural heat convection</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+fluid+dynamics%22">Computational fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+dissipation%22">Energy dissipation</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Permanent+magnet+generators%22">Permanent magnet generators</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This article presents a multiphysics simulation methodology to predict the temperature-dependent demagnetization phenomenon of a 900 W permanent-magnet synchronous generator (PMSG). For the 2D electromagnetic model, a commercial finite element method (FEM) package was used to determine the power loss distribution under steady-state conditions, accounting for temperature-dependent demagnetization. The thermal analysis was carried out on a 3D model using computational fluid dynamics (CFD) software, where a polyhedral mesh, rotor rotation effects, and turbulent modeling were implemented. Two simulation cases were evaluated: Case 1, electromagnetic losses at constant temperature without FEM-CFD coupling; Case 2, bidirectional FEM-CFD coupling under steady-state conditions. The analysis confirms that in Cases 1 and 2, there is no risk of irreversible demagnetization, thus validating the selection of the permanent magnet (PM) and the design of the PMSG. Additionally, the methodology accurately captured the heat transfer effects resulting from natural convection and turbulent flow in the critical regions. The CFD modeling convergence criteria, based on residuals and flow monitors, demonstrated numerical stability and a satisfactory mesh discretization in both the FEM and CFD domains, providing valid feedback on the PM temperatures. The proposed methodology provides a robust and accurate tool for coupled electromagnetic–fluid–thermal analysis of the PMSG at rated operating conditions. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Energies (19961073) is the property of MDPI 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: 10.3390/en18236149 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 30 StartPage: 6149 Subjects: – SubjectFull: Demagnetization Type: general – SubjectFull: Thermal analysis Type: general – SubjectFull: Natural heat convection Type: general – SubjectFull: Computer simulation Type: general – SubjectFull: Computational fluid dynamics Type: general – SubjectFull: Energy dissipation Type: general – SubjectFull: Finite element method Type: general – SubjectFull: Permanent magnet generators Type: general Titles: – TitleFull: Analysis of the Demagnetization of a PMSG Using a Coupled Electromagnetic–Fluid–Thermal Numerical Model. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Morón-Monreal, Jorge E. – PersonEntity: Name: NameFull: Martinez-Rios, Francisco J. – PersonEntity: Name: NameFull: Hernandez, Concepcion – PersonEntity: Name: NameFull: Arjona, Marco A. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 19961073 Numbering: – Type: volume Value: 18 – Type: issue Value: 23 Titles: – TitleFull: Energies (19961073) Type: main |
| ResultId | 1 |
