Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A permanent magnet synchronous motor for an electric vehicle - design analysis
KTH, Superseded Departments, Electrical Systems.
2004 (English)Licentiate thesis, comprehensive summary (Other scientific)
Abstract [en]

This thesis presents the study and the design analysis of apermanent magnet synchronous motor (PMSM) for the tractionapplication of an electric vehicle. An existing inductiontraction motor for an electric forklift benchmarks the expectedperformances of the proposed PMSM design. Further, thepossibility of using the identical stator as the one used inthe induction motor is explored for the fast prototyping. Theprototype motor is expected to be field-weakened and to have aconstant power speed range (CPSR) of 2.5 to 3.

A design approach based on the CPSR contour plot in aninterior permanent magnet (IPM) parameter plane is derived toobtain the possible designs that meet all the designspecifications and the targeted CPSR. This study provides thepossible alternative designs for the subsequent futureprototype motors.

An analytical approach to estimate the iron loss in PMsynchronous machines is developed and included in the designprocedure. The proposed technique is based on predicting theflux density waveforms in the various regions of the machine.The model can be applied at any specified load condition,including the field-weakening operation region. This model canbe ultimately embedded in the design process for a routine usein loss estimations.

The first prototype motor with an inset permanent magnetrotor has been built and the available measurements are used tovalidate the design performance. In particular, the thermalanalyses based both on the lumped-circuit approach and thenumerical method are compared with the measured results. Asecond and possibly a third prototype motor targeting a widerand higher performance will be carried out in the continuingphase of the project.

Keywords:Constant Power Speed Range, Electric Vehicles,Field-weakening, Reference Flux Linkage, Iron Loss, PermanentMagnet Synchronous Motor, Thermal Analysis

Place, publisher, year, edition, pages
Stockholm: Elektrotekniska system , 2004. , xvi, 82 p.
Series
TRITA-ETS, ISSN 1650-674X ; 2004:04
Keyword [en]
constant power speed range, electric vehicles, field-weakening, reference flux linkage
Identifiers
URN: urn:nbn:se:kth:diva-1763ISBN: 91-7283-803-5 (print)OAI: oai:DiVA.org:kth-1763DiVA: diva2:7754
Note

QCR 20161026

Available from: 2004-07-05 Created: 2004-07-05 Last updated: 2016-10-26

Open Access in DiVA

fulltext(4884 kB)39724 downloads
File information
File name FULLTEXT01.pdfFile size 4884 kBChecksum MD5
1f6f6ad98429bff0239e82e7ebcde646147850f11a3ea90f3b3056ed5e73ef3c2e11fbb0
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Chin, Yung-Kang
By organisation
Electrical Systems

Search outside of DiVA

GoogleGoogle Scholar
Total: 39724 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 3557 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf