Separating Broken Rotor Bars and Load Oscillations on IM Fault Diagnosis Through the Instantaneous Active and Reactive Currents
Bossio, G.R.; De Angelo, C.H.; Bossio, J.M.; Pezzani, C.M.; Garcia, G.O.
Industrial Electronics, IEEE Transactions on
Volume 56, Issue 11, Nov. 2009 Page(s):4571 - 4580
Digital Object Identifier   10.1109/TIE.2009.2024656
Summary:A new method for broken rotor bars and load oscillation diagnosis on induction motors is presented. The proposed strategy is based on the decomposition of the stator currents into their instantaneous active and reactive current components. Such components allow the decoupling of the effects produced by rotor asymmetries from those produced by oscillating loads. This allows not only the proper fault detection but also a correct fault diagnosis. Simulation and experimental results, both from laboratory and industrial cases, are presented to validate the proposal.

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