Title :
Simple detection of broken rotor bars using field-oriented control
Author :
Drobnic, K. ; Nemec, M. ; Fiser, R. ; Ambrozic, V.
Author_Institution :
Fac. of Electr. Eng., Univ. of Ljubljana, Ljubljana, Slovenia
Abstract :
In this paper, a method for simple detection of broken rotor bars in a speed-controlled induction motor, is presented. It is based on detecting the oscillations in a magnetizing component of stator current, through a modified control loop. The method is simple and requires no additional hardware, thus it can run in parallel with field-oriented control, which is not affected by the procedure. Experimental results obtained from gradually damaged rotor shows high level of fault detection even with low number of broken bars.
Keywords :
angular velocity control; fault diagnosis; induction motors; machine vector control; magnetisation; rotors; broken rotor bar detection; fault detection; field-oriented control; magnetizing stator current; modified control loop; oscillation detection; speed-controlled induction motor; Bars; Load modeling; Magnetic flux; Magnetic separation; Oscillators; Rotors; Transient analysis; Induction motor; fault diagnosis; squirrel cage motors;
Conference_Titel :
Power Electronics and Motion Control Conference (EPE/PEMC), 2012 15th International
Conference_Location :
Novi Sad
Print_ISBN :
978-1-4673-1970-6
Electronic_ISBN :
978-1-4673-1971-3
DOI :
10.1109/EPEPEMC.2012.6397388
