Broken bars fault diagnosis in induction machine fed by a voltage source inverter

In this paper, we present the modeling of the induction machine, taking into consideration the rotor fault in order to detect and diagnosis rotor broken bars the analysis of stator current in Concordia pattern compared to the healthy mode case. The obtained results show that the considered method can effectively detect abnormal operating conditions in induction motor and clearly show the possibility of extracting signatures to detect fault. These techniques offer reliable and satisfactory results to diagnose such fault.