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

fYear

2010

fDate

14-16 June 2010

Firstpage

1030

Lastpage

1035

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/SPEEDAM.2010.5542100

Filename

5542100