Effects of slot closure and magnetic saturation on induction machine behavior

Author

Salon, S. ; Burow, D. ; DeBortoli, M. ; Slavik, C.

Author_Institution

Dept. of Electr. Power Eng., Rensselaer Polytech. Inst., Troy, NY, USA

Volume

30

Issue

5

fYear

1994

fDate

9/1/1994 12:00:00 AM

Firstpage

3697

Lastpage

3700

Abstract

Reduction of the permeance variations due to slot openings can be achieved through the use of closed or semi-closed slots or magnetic slot wedges. A complete transient finite element model analyses the effects of slot closure in an induction motor. The analysis of the air gap flux density and magnetic force waves determined by the finite element model reveals two effects of stator slot closure: (a) a reduction of those flux density and force waves generated by stator slotting, which was expected, and (b) an increase in the amplitude of the flux density and force waves originating from saturation

Keywords

asynchronous machines; finite element analysis; machine theory; magnetic flux; air gap flux density; induction machine behavior; magnetic force waves; magnetic saturation; magnetic slot wedge; semi-closed slots; slot closure; transient finite element model; Coils; Finite element methods; Induction machines; Induction motors; Magnetic analysis; Magnetic flux; Reactive power; Saturation magnetization; Stators; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.312744

Filename

312744