Title :
A method for detection of eccentricity in permanent magnet machines
Author :
Hajiaghajani, Masoud ; Hao, Lei ; Madani, Seyed M. ; Toliyat, Hamid A.
Author_Institution :
Energy Technol. Syst., Chevron Texaco Technol. Ventures, Houston, TX, USA
Abstract :
This paper attempts to find an analytical solution for the problem of eccentricity in permanent magnet (PM) machines. The result is helpful in developing proper features in the detection of this kind of fault in a diagnostic package. The analysis starts with the modeling of air-gap eccentricity in PM machines and is supported with both experimental and finite element simulation results. The results show that eccentricity appears in the form of speed related harmonics and can be detected by variation in its second harmonics.
Keywords :
air gaps; fault diagnosis; finite element analysis; harmonic analysis; permanent magnet machines; air-gap eccentricity modeling; diagnostic package; eccentricity detection; finite element simulation; permanent magnet machines; second harmonics variation; speed related harmonics; Air gaps; Computer vision; Electric machines; Fault detection; Magnetic analysis; Packaging machines; Permanent magnets; Rotors; Stator cores; Student members;
Conference_Titel :
Industry Applications Conference, 2003. 38th IAS Annual Meeting. Conference Record of the
Print_ISBN :
0-7803-7883-0
DOI :
10.1109/IAS.2003.1257818
