Broken bar fault diagnosis in single and double cage induction motors fed by asymmetrical voltage supply

Gyftakis, Konstantinos N.; Athanasopoulos, D.; Kappatou, J. C.

doi:10.1109/demped.2013.6645747

Cited by 7 publications

(4 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was also shown in [37] that the ZSC is less sensitive to the rotor slot number compared to other diagnostic means. Finally, it was shown in [38] with the use of FEM that the ZSC broken rotor bar fault signatures had greater amplitudes than those of the stator current signatures in both single and double cage induction motors.…”

Section: Introductionmentioning

confidence: 99%

Comparative Experimental Investigation of the Broken Bar Fault Detectability in Induction Motors

Gyftakis

Antonino-Daviu

Garcia-Hernandez

et al. 2015

IEEE Trans. on Ind. Applicat.

View full text Add to dashboard Cite

This article has been accepted for publication in IEEE Transactions on Industry Applications. "© © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works."Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders. Abstract -It has been shown in the past that the zerosequence current spectrum can be reliably used to detect broken bar faults in induction motors. Previous work was carried out with extensive FEM analysis. Although it allows detailed study of spatial and time-dependent electromagnetic characteristics of induction motors, FEM is a heavily timeconsuming tool and this limits full study. So, in this work, extensive experimental testing has been performed to validate the zero sequence current spectrum for detecting rotor asymmetries. Three identical induction motors have been used: one healthy, one with a broken rotor bar, and one with two broken rotor bars. The motors were tested under different voltage supply levels and with different mechanical loads. The zero-sequence current spectrum was calculated after measuring the three phase currents. It is for the first time experimentally shown that this approach offers greater diagnostic potential than traditional MCSA. CURVE is the Institutional Repository for Coventry University

show abstract

Section: Introductionmentioning

confidence: 99%

Comparative Experimental Investigation of the Broken Bar Fault Detectability in Induction Motors

Gyftakis

Antonino-Daviu

Garcia-Hernandez

et al. 2015

IEEE Trans. on Ind. Applicat.

View full text Add to dashboard Cite

show abstract

“…In the other two cases (Tables 2 and Table 4), the broken bar fault signatures close to the 150Hz harmonic do not present important amplitudes compared to other signatures of the spectrum. But it is worth saying that the third line current harmonic is sensitive to the grid's voltage imbalance [26]. So, in real operating conditions if a voltage supply asymmetry exists, then the signatures of the line currents, for Y and Δ connection, close to the 150Hz current harmonic would present greater amplitudes as well.…”

Section: Discussion Of the Simulation Resultsmentioning

confidence: 99%

FEM Analysis for Comparative Investigation o f The S tator Circuit Connexion Impact o n The Induction Motor Broken Bar Fault Higher Order Signatures

Halem¹,

Zouzou²,

Srairi³

et al. 2016

ijeei

View full text Add to dashboard Cite

The induction motor operating reliability is a major issue of modern industry since faults may occur and disrupt the production process. In this work, the diagnostic potential of the line or phase current frequency spectrum for the identification of the broken bar fault in the cage induction motor is investigated depending on the stator three-phase winding configuration. The work is carried out with transient finite element method (FEM) simulations considering motor operation under nominal mechanical load. The study will concern the traditional broken bar fault signatures but also higher order harmonics and will lead to a comparison between their reliability to detect the broken bar fault, with respect to prior work.

show abstract

“…Most studies present the measurement results for experimental test stands with rotors specially prepared to damage the bars in the outer and inner cages [13,16,17,24]. Electrical and mechanical quantities were measured and analysed for transient start up [15][16][17] and steadystates operations [18,24,25,28]. These results allow us to recognise the effects of cage damages and suggest algorithms for rotor diagnostics.…”

Section: Introductionmentioning

confidence: 99%

Stator current spectrum analysis of a double cage induction motor with rotor asymmetry

2024

Archives of Electrical Engineering

View full text Add to dashboard Cite

This study presents a method to directly calculate the stator current Fourier spectra in double-cage induction motors to diagnose faults in rotor cages. A circuit model is developed for this purpose, allowing the modelling of any asymmetry in the outer and inner rotor cages. The model extends the conventional model of a cage motor by considering the higher space harmonics generated by the stator windings. The asymmetry of the cages is modelled by growing the resistance of any of the rotor bars. This results in various model equations, to be solved by looking for diagnostic signals. Motor current signature analysis is typically used to diagnose cage motors based on the Fourier spectra of the stator currents during steady-state operation. This study determines these spectra for double cage motors using the harmonic balance method, omitting the transient calculations. The calculation results confirmed the sensitivity of the stator current Fourier spectra as a diagnostic signal to distinguish faults in the outer and inner cages.

show abstract

Broken bar fault diagnosis in single and double cage induction motors fed by asymmetrical voltage supply

Cited by 7 publications

References 18 publications

Comparative Experimental Investigation of the Broken Bar Fault Detectability in Induction Motors

Comparative Experimental Investigation of the Broken Bar Fault Detectability in Induction Motors

FEM Analysis for Comparative Investigation o f The S tator Circuit Connexion Impact o n The Induction Motor Broken Bar Fault Higher Order Signatures

Stator current spectrum analysis of a double cage induction motor with rotor asymmetry

Contact Info

Product

Resources

About