Park´s vector approach for online fault diagnosis of induction motor

In this paper, the induction motor is modelled in stationary reference frame using the equations derived from the equivalent circuit model of the stationary reference frame. After implementing the model, it is analysed under healthy and faulty condition. The considered faulty conditions of the induction motor include the stator and rotor fault. Any single phasing situation creates the stator fault that may result in opening and shorting of one or more phase winding. In this work the modelled induction motor is modified for analysing the open circuit fault of the stator phase windings and the result are compared using the using the voltage pattern and the current pattern obtained using Park´s vector approach. The results are compared to give the best solution in stator fault diagnosis. The broken bar fault is introduced in the rotor by making some modifications in the model and the current pattern obtained using Park´s vector approach is analysed with the difference in the pattern produced during the healthy condition. Finally, both the faults are introduced in the model and the result is analysed using Park´s vector approach.