Influence of rotor slot wedges on stator currents and stator vibration spectrum of induction machines: a transient finite-element analysis

Author

Delaere, Koen ; Belmans, Ronnie ; Hameyer, Kay

Author_Institution

Katholic Univ. of Leuven, Belgium

Volume

39

Issue

3

fYear

2003

fDate

5/1/2003 12:00:00 AM

Firstpage

1492

Lastpage

1494

Abstract

The stator currents and stator vibration spectrum of a 45-kW four-pole induction machine is computed using a transient two-dimensional finite-element analysis. The analysis is performed for two different rotor geometries: with open and with closed rotor slots. Open rotor slots increase the harmonic content of the air gap field and also the harmonic content of the stator currents. Open rotor slots thus increase the stator vibration level for frequencies higher than 1 kHz.

Keywords

asynchronous machines; finite element analysis; harmonics; machine theory; rotors; stators; transient analysis; vibrations; air gap field; closed rotor slots; four-pole induction machine; harmonic content; open rotor slots; rotating machine transient analysis; rotor geometries; rotor slot wedges; stator currents; stator vibration level; stator vibration spectrum; transient 2D FEA; transient finite-element analysis; two-dimensional finite-element analysis; Finite element methods; Frequency; Geometry; Induction machines; Magnetic analysis; Magnetic fields; Motion analysis; Stators; Teeth; Transient analysis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2003.810552

Filename

1198507