Title :
Broken bar detection using inverter currents in induction motor drives
Author :
Georgakopoulos, I. ; Mitronikas, E. ; Safacas, A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Patras, Patras, Greece
Abstract :
Rotor electrical faults are common types of faults in squirrel cage induction motors and have been investigated in detail in steady state condition for grid-connected induction motors. In this paper, this type of fault is studied in case of inverter driven motors. Inverter input and output currents are studied for the fault indicative frequency components. The harmonics which are induced to the inverter input current give the ability of fault detection under low load and low motor severity fault condition in both motor steady-state and transient operation.
Keywords :
fault diagnosis; invertors; squirrel cage motors; broken bar detection; fault indicative frequency components; grid-connected induction motors; inverter currents; inverter driven motors; low motor severity fault condition; motor steady-state operation; motor transient operation; rotor electrical faults; squirrel cage induction motors; Discrete wavelet transforms; Electrical fault detection; Fault diagnosis; Frequency; Induction motor drives; Induction motors; Inverters; Rotors; Stators; Steady-state; Fault diagnosis; induction motors; inverter; spectral analysis;
Conference_Titel :
Power Electronics Electrical Drives Automation and Motion (SPEEDAM), 2010 International Symposium on
Conference_Location :
Pisa
Print_ISBN :
978-1-4244-4986-6
Electronic_ISBN :
978-1-4244-7919-1
DOI :
10.1109/SPEEDAM.2010.5542100
