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Mechanical properties and insulation damage of PMSG stator end windings with eccentricity considerations.

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Title: Mechanical properties and insulation damage of PMSG stator end windings with eccentricity considerations.
Authors: Dai, De-Rui1 (AUTHOR), He, Yu-Ling1,2 (AUTHOR) heyuling1@163.com, Xu, Ming-Xing1 (AUTHOR), Zhang, Wen1 (AUTHOR), Fu, Zi-Xiang1 (AUTHOR), Gerada, David3 (AUTHOR)
Source: Alexandria Engineering Journal. Oct2024, Vol. 105, p156-169. 14p.
Subjects: Permanent magnet generators, Finite element method, Wind damage, Eccentrics (Machinery), Electromagnetic forces
Abstract: The mechanical properties and insulation damage of stator end windings in permanent magnet synchronous generator (PMSG) are investigated by theoretical analysis, finite element analysis (FEA) and experiment verification. First, a theoretical model of the winding electromagnetic force (EF) and vibration response before and after eccentricity faults are established. Then, the stress/strain distribution of the end windings under different working conditions is analyzed. Finally, the insulation damage behavior of end windings with initial cracks is studied and characterized using the stress intensity factor (SIF). The results indicate that the winding EF and vibration responses vary under different faults. The stress/strain at the joint of the winding is the largest, and the insulation layer has the maximum stress/strain under the same section. Additionally, the SIF amplitude of the crack at the winding joint is the largest. And the SIF amplitude of the crack will increase with the increase of fault degree/crack depth/crack length. The contribution of this paper lies in the comprehensive analysis of the winding EF distribution, vibration response, stress and strain, and insulation damage before and after eccentricity. This analysis can provide valuable reference for the health monitoring of PMSG eccentricity faults and the prevention of winding insulation damage. [ABSTRACT FROM AUTHOR]
Copyright of Alexandria Engineering Journal is the property of Elsevier B.V. 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: 180114590
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
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  Data: Mechanical properties and insulation damage of PMSG stator end windings with eccentricity considerations.
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  Data: <searchLink fieldCode="AR" term="%22Dai%2C+De-Rui%22">Dai, De-Rui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22He%2C+Yu-Ling%22">He, Yu-Ling</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> heyuling1@163.com</i><br /><searchLink fieldCode="AR" term="%22Xu%2C+Ming-Xing%22">Xu, Ming-Xing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Wen%22">Zhang, Wen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fu%2C+Zi-Xiang%22">Fu, Zi-Xiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gerada%2C+David%22">Gerada, David</searchLink><relatesTo>3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Alexandria+Engineering+Journal%22">Alexandria Engineering Journal</searchLink>. Oct2024, Vol. 105, p156-169. 14p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Permanent+magnet+generators%22">Permanent magnet generators</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Wind+damage%22">Wind damage</searchLink><br /><searchLink fieldCode="DE" term="%22Eccentrics+%28Machinery%29%22">Eccentrics (Machinery)</searchLink><br /><searchLink fieldCode="DE" term="%22Electromagnetic+forces%22">Electromagnetic forces</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The mechanical properties and insulation damage of stator end windings in permanent magnet synchronous generator (PMSG) are investigated by theoretical analysis, finite element analysis (FEA) and experiment verification. First, a theoretical model of the winding electromagnetic force (EF) and vibration response before and after eccentricity faults are established. Then, the stress/strain distribution of the end windings under different working conditions is analyzed. Finally, the insulation damage behavior of end windings with initial cracks is studied and characterized using the stress intensity factor (SIF). The results indicate that the winding EF and vibration responses vary under different faults. The stress/strain at the joint of the winding is the largest, and the insulation layer has the maximum stress/strain under the same section. Additionally, the SIF amplitude of the crack at the winding joint is the largest. And the SIF amplitude of the crack will increase with the increase of fault degree/crack depth/crack length. The contribution of this paper lies in the comprehensive analysis of the winding EF distribution, vibration response, stress and strain, and insulation damage before and after eccentricity. This analysis can provide valuable reference for the health monitoring of PMSG eccentricity faults and the prevention of winding insulation damage. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Alexandria Engineering Journal is the property of Elsevier B.V. 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:
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        Value: 10.1016/j.aej.2024.06.090
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      – Code: eng
        Text: English
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        PageCount: 14
        StartPage: 156
    Subjects:
      – SubjectFull: Permanent magnet generators
        Type: general
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Wind damage
        Type: general
      – SubjectFull: Eccentrics (Machinery)
        Type: general
      – SubjectFull: Electromagnetic forces
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      – TitleFull: Mechanical properties and insulation damage of PMSG stator end windings with eccentricity considerations.
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            NameFull: Dai, De-Rui
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            NameFull: He, Yu-Ling
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              Text: Oct2024
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