Original 2D cylindrical harmonics method for identification of the near magnetic stray field of electrical motor

Author

Schmerber, Louis ; Rouve, Laure-Line ; Foggia, Albert

Author_Institution

Laboratoire de Magnetisme du Navire, LMN-ENSIEG, St. Martin d´´Heres

fYear

2005

fDate

15-15 May 2005

Firstpage

92

Lastpage

98

Abstract

This paper deals with an original use of the 2D harmonic multipolar decomposition of the magnetic stray field of an electrical motor. Based on a certain number of stray field measurements, the equivalent magnetic source is identified and it is separated into elementary rotating or pulsating sources. Due to this decomposition, a powerful fault diagnostic tool is obtained based on both frequency and multipolar analysis of the magnetic field. The method is illustrated on a faulty permanent magnet motor with a degaussed magnet

Keywords

fault diagnosis; harmonic analysis; permanent magnet motors; 2D cylindrical harmonics method; 2D harmonic multipolar decomposition; electrical motor; equivalent magnetic source; fault diagnostic tool; magnetic stray field; multipolar analysis; permanent magnet motor; stray field measurements; Frequency; Leg; Magnetic analysis; Magnetic field measurement; Magnetic separation; Magnetic shielding; Magnetostatics; Partial differential equations; Permanent magnet motors; Rotation measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Machines and Drives, 2005 IEEE International Conference on

Conference_Location

San Antonio, TX

Print_ISBN

0-7803-8987-5

Electronic_ISBN

0-7803-8988-3

Type

conf

DOI

10.1109/IEMDC.2005.195707

Filename

1531325