On the use of spectral analysis of air-gap flux density in permanent magnet bearingless motors

Author

Lapotre, Blaise ; Takorabet, Noureddine ; Meilbody-Tabar, Farid ; Lateb, Ramdane ; Dasilva, Joaquim

Author_Institution

GREEN, Univ. de Lorraine, Vandœuvre-lès-Nancy, France

fYear

2014

fDate

2-5 Sept. 2014

Firstpage

591

Lastpage

597

Abstract

In this paper, the authors propose an overall analysis of the flux density harmonics in the air-gap of bearingless machines in order to control two functions: levitation and rotation. This harmonic analysis allows the determination of the contributions of different interactions of the field components and therefore determines a control strategy. It also allows to evaluate the parasitic forces which can disturb the system. The harmonic model is semi-analytical and allows to obtain good results by means of very low CPU time.

Keywords

air gaps; harmonic analysis; machine control; permanent magnet motors; spectral analysis; air-gap; bearingless machines; control strategy; field components; flux density harmonics; harmonic analysis; levitation; parasitic forces; permanent magnet bearingless motors; rotation; spectral analysis; very low CPU time; Air gaps; Force; Harmonic analysis; Induction motors; Magnetic flux; Magnetic levitation; Rotors; Bearingless Motor; High speed motors; Magnetic levitation; PM motor; Radial forces;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2014 International Conference on

Conference_Location

Berlin

Type

conf

DOI

10.1109/ICELMACH.2014.6960240

Filename

6960240