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On the Choice of Diameter-Length Ratio, Slot-Tooth Ratio and Pole Number of Variable Speed Induction Motor Drives
KTH, School of Electrical Engineering (EES), Electrical Energy Conversion.ORCID iD: 0000-0002-1755-1365
1996 (English)Conference paper (Refereed)
Abstract [en]

The diameter-length ratio, slot-tooth ratio and the pole number can principally be chosen freely when designing a special induction motor for inverter supply. This paper deals with general aspects on these design parameters. Special attention is paid to motors requiring a high pull-out torque, such as traction motors. It is found that a traction motor should normally be an "iron motor". Moreover, it is found that the potential to increase the pull-out torque when making a slim motor is due to secondary effects like reduced end-turns. Finally, it is found that a design with four poles is seldom far from the optimal pole number. For high-speed drives two-pole motors are sometimes better and for traction drives six-pole motors are sometimes preferable.

Place, publisher, year, edition, pages
1996. 290-295 p.
Keyword [en]
Induction motors, Design, Variable-speed drives
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-109800OAI: diva2:584361
Proc. of the International Conference on Electrical Machines, Vigo, September 1996, ICEMĀ“96.
NR 20140805Available from: 2013-01-09 Created: 2013-01-09Bibliographically approved

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Nee, Hans-Peter
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Electrical Energy ConversionKTH
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