Title :
Diagnosis of induction motor rotor faults based on finite element evaluation of voltage harmonics of coil sensors
Author :
Fireteanu, Virgiliu ; Taras, Petrica
Abstract :
The paper deals with the finite element evaluation of the electromagnetic field associated with the induction motors operation and with the diagnosis of rotor faults based on the time and space dependent magnetic field outside the motor. The effects of one squirrel cage broken bar and of rotor eccentricity on the electromagnetic torque and force and on the external magnetic field are presented. Solutions for on-line or off-line faults diagnosis based on the output voltage of coil sensors placed in the motor neighbourhoud are analysed.
Keywords :
coils; electric sensing devices; electromagnetic forces; fault diagnosis; finite element analysis; harmonic analysis; magnetic fields; motor protection; rotors; squirrel cage motors; torque; coil sensors; electromagnetic field; electromagnetic force; electromagnetic torque; finite element voltage harmonics evaluation; induction motor rotor fault diagnosis; offline fault diagnosis; online fault diagnosis; rotor eccentricity; space dependent magnetic field; squirrel cage broken bar effects; time dependent magnetic field; Circuit faults; Coils; Fault diagnosis; Harmonic analysis; Induction motors; Magnetic fields; Rotors; coil sensors; finite element analysis; harmonic spectrum; induction motor faults diagnosis;
Conference_Titel :
Sensors Applications Symposium (SAS), 2012 IEEE
Conference_Location :
Brescia
Print_ISBN :
978-1-4577-1724-6
DOI :
10.1109/SAS.2012.6166292
