Finite-element transient analysis of induction motors under mixed eccentricity fault Conference Paper

abstract

• In a three-phase squirrel-cage induction motor, eccentricity is a common fault that can make it necessary to remove the motor from the production line. However, because the motor may be inaccessible, diagnosing the fault is not easy. We have developed a time-stepping finite-element method (FEM) that identifies mixed eccentricity (a combination of static and dynamic) by analysis, without direct access to the motor. The method overcomes the difficulty of applying FEMs to transient behavior. It simulates the spectrum of the line current of a production-line motor and compares it to the spectrum of a known healthy motor to detect eccentricity. Agreement between the simulation and actual measurements of eccentricity is good. 2007 IEEE.

authors

• Toliyat, Hamid

published proceedings

• IEEE TRANSACTIONS ON MAGNETICS

author list (cited authors)

• Faiz, J., Ebrahimi, B. M., Akin, B., & Toliyat, H. A.

citation count

• 125

complete list of authors

• Faiz, Jawad||Ebrahimi, Bashir Mahdi||Akin, Bilal||Toliyat, Hamid A

publication date

• January 2008

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE Transactions on Magnetics  Journal

keywords

• Finite-element Method
• Induction Motor
• Mixed Eccentricity
• Time Stepping

Digital Object Identifier (DOI)

• 10.1109/TMAG.2007.908479

start page

• 66

end page

• 74

volume

• 44

issue

• 1

URL

• http%3A%2F%2Fdx.doi.org%2F10.1109%2Ftmag.2007.908479