An Advanced Park´s Vectors Approach for Bearing Fault Detection

Induction motors vibrations, caused by bearing defects, result in the modulation of the stator current. In this research, a new method based on Park´s vector approach for bearing fault detection using 3-phase stator current analysis is presented. In order to evaluate the ability of the proposed method several experiments are done, and sets of data are gathered before and after using defective bearings. Localized and distributed defect is evaluated using this method. The experimental results from our study suggest that the proposed method provides a powerful and general approach to incipient fault detection.