DocumentCode
1071906
Title
Effects of the Slot Harmonics on the Unbalanced Magnetic Pull in an Induction Motor With an Eccentric Rotor
Author
Frauman, Pierre ; Burakov, Andrej ; Arkkio, Antero
Author_Institution
Helsinki Univ. of Technol., Espoo
Volume
43
Issue
8
fYear
2007
Firstpage
3441
Lastpage
3444
Abstract
The slotting of electrical rotating machines creates slot harmonics of the air-gap magnetic flux density. These slot harmonics are the source of a nonnegligible part of the unbalanced magnetic pull (UMP). This paper presents analytical justifications for the use of a numerical impulse method to calculate the effects of the slot harmonics on the UMP. It uses the method to show that the force components due to the slot harmonics cannot be reduced easily.
Keywords
air gaps; induction motors; magnetic flux; rotors; air-gap magnetic flux density; eccentric rotor; electrical rotating machines; numerical impulse method; slot harmonics; slotting; unbalanced magnetic pull; Air gaps; Finite element methods; Frequency; Harmonic analysis; Induction motors; Laboratories; Magnetic flux; Magnetic flux density; Rotors; Stators; Electrical machines; flux density harmonics; impulse method; rotor eccentricity;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2007.899470
Filename
4277894
Link To Document