Title :
Detection of eccentricity fault by monitoring magnetic field of stator yoke in induction motor
Author :
Bao, X. ; Wang, H. ; Di, C. ; Cheng, Z.
Author_Institution :
Sch. of Electr. Eng. & Autom., Hefei Univ. of Technol., Hefei, China
Abstract :
In this paper, monitoring the magnetic field of stator yoke of induction motor is applied to detect the eccentricity types and the position of minimum air gap. 12 search coils placed in stator yoke uniformly are proposed to obtain magnetic field indirectly. By analyzing and comparing the induced voltages of search coils, the eccentricity types and the position of minimum air gap could be detected. In particular, the determining of position of minimum air gap provides guidance for the eccentric troubleshooting.
Keywords :
air gaps; fault diagnosis; induction motors; stators; eccentric troubleshooting; eccentricity fault; induction motor; magnetic field; minimum air gap; search coils; stator yoke; Air gaps; Coils; Induction motors; Monitoring; Rotors; Stator windings;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157121
