Title :
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
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;
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
DOI :
10.1109/IEMDC.2005.195707
