Faults Diagnosis by Parameter Identification of the Squirrel Cage Induction Machine

The authors present the faults diagnosis by parameter identification of the squirrel-cage rotor induction machine using real data. The model of electric parameter identification of the induction machine from the input-output observations of the stator is elaborated.To experimentally verify this approach, the tests are carried out on four squirrel-cage rotor induction machines especially constructed for the purpose of the diagnosis. All the model parameters of the squirrel-cage rotor induction machine are identified by least-squares method. Experimental results show good agreement and confirm the possibility the detection and localization of the faults.