Evaluation of harmonic current sidebands for broken bar diagnosis in induction motors

Author

Bossio, G.R. ; De Angelo, C.H. ; Pezzani, C.M. ; Bossio, J.M. ; Garcia, G.O.

Author_Institution

Grupo de Electron. Aplic. (GEA), UNRC, Rio Cuarto, Argentina

fYear

2009

fDate

Aug. 31 20096-Sept. 3 2009

Firstpage

1

Lastpage

6

Abstract

Effects of rotor faults on stator currents in induction motors are studied in the present work. Particularly, the effects of such faults on the sidebands at fundamental and harmonics current components are analyzed. A multiple-coupled circuit model determines the variation of amplitude of these sidebands as a function of the number of broken bars, load and motor-load inertia. The results obtained from this analysis allow improving the rotor fault diagnosis techniques and identifying and separating rotor faults from others. Simulation and experimental results are presented to validate the proposal.

Keywords

fault diagnosis; induction motors; rotors; stators; broken bar diagnosis; harmonic current sidebands; induction motors; multiple-coupled circuit model; rotor faults; stator currents; Analytical models; Bars; Equivalent circuits; Fault diagnosis; Frequency; Harmonic analysis; Harmonic distortion; Induction motors; Rotors; Voltage; Broken Rotor Bars; Fault Diagnosis; Induction Motors;

fLanguage

English

Publisher

ieee

Conference_Titel

Diagnostics for Electric Machines, Power Electronics and Drives, 2009. SDEMPED 2009. IEEE International Symposium on

Conference_Location

Cargese

Print_ISBN

978-1-4244-3441-1

Type

conf

DOI

10.1109/DEMPED.2009.5292798

Filename

5292798