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A fast and flexible analytical approach for thermal modeling of a linear stator structure
KTH, School of Electrical Engineering (EES), Electrical Energy Conversion.
2013 (English)In: Proceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013, IEEE , 2013, 793-800 p.Conference paper, Published paper (Refereed)
Abstract [en]

A closed-form analytical solution for temperature distribution in a rectangular slot structure is presented. The methodology models windings, lamination and slot insulation as three distinct regions and formulates a boundary value problem for each region. The solutions follow Poisson's and Laplace's equations. The closed-form nature of the solution allows it to be used for electric machine design and protection. The model is compared with a lumped parameter model, and verified using three-dimensional finite element analysis (FEA) and experimental measurements on a linear induction machine. Slot temperature predictions using the proposed model are within 3.2% of FEA. Model temperature estimates in the slot, lamination, and end winding are all within 6.7% of experimental measurements. This temperature estimation accuracy suggests that the proposed approach is suitable for applications where fast and flexible thermal modeling is necessary.

Place, publisher, year, edition, pages
IEEE , 2013. 793-800 p.
Keyword [en]
Analytical approach, Closed-form analytical solutions, Laplace's equations, Linear induction machines, Lumped parameter models, Temperature estimation, Temperature prediction, Three dimensional finite element analysis
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-133849DOI: 10.1109/IEMDC.2013.6556184Scopus ID: 2-s2.0-84881638663ISBN: 978-146734975-8 (print)OAI: oai:DiVA.org:kth-133849DiVA: diva2:663519
Conference
2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013; Chicago, IL; United States; 12 May 2013 through 15 May 2013
Note

QC 20131112

Available from: 2013-11-12 Created: 2013-11-11 Last updated: 2013-11-12Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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Output format
  • html
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  • asciidoc
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