Experimental and numerical investigations on rotational fluxes in stator cores of three-phase motors

Author

Bottauscio, O. ; Chiampi, M. ; Zucca, M.

Author_Institution

Ist. Elettrotecnico Nazionale Galileo Oerraris Strada, Turin, Italy

Volume

38

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

3294

Lastpage

3296

Abstract

A test device constituted by a three-phase stator equipped with pick-up coils and by a barless rotor has been realized. The device, driven by a synchronous motor, has been employed for a thorough investigation of the magnetic behavior of the stator core during the no-load test. The analysis has been developed under sinusoidal, six-step, and 12-step voltage supplies. The measured quantities have been compared with the results provided by a two-dimensional finite-element model that includes vector hysteresis and eddy currents. Good agreement has been generally found, in particular on the prediction of the flux density loci.

Keywords

AC motors; coils; eddy currents; finite element analysis; machine testing; magnetic flux; magnetic hysteresis; rotors; stators; barless rotor; eddy currents; flux density loci prediction; induction motor; magnetic behavior; no-load test; pick-up coils; rotational fluxes; sinusoidal 12-step voltage supplies; sinusoidal six-step voltage supplies; stator core; stator cores; synchronous motor; test device; three-phase motors; two-dimensional finite-element model; vector hysteresis; Coils; Hysteresis motors; Magnetic analysis; Magnetic devices; Magnetic flux; Rotors; Stator cores; Synchronous motors; Testing; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2002.802293

Filename

1042529