State-Space Model Based Induction Motor Stator Winding Inter-turn Fault Detection Technique
Detection of fault at its inception point is extremely important to avoid catastrophic failure in the industrial process. In three-phase induction motor, stator winding inter-turn faults involving a small number of turns is not easily discernible and the motor under such fault condition may continue to operate for a certain time until the initiated fault is enhanced and propagated to a major fault resulting in an irreparable motor failure. In this paper, a state-space model has been proposed to detect stator winding inter-turn faults in three-phase induction motor using System Identification Toolbox of MATLAB®. The proposed model is validated and subsequently used for determining the step response, which will carry significant information which is capable to detect stator winding inter-turn faults.
KeywordsStator winding inter-turn fault Three-phase induction motor State-space analysis System identification toolbox
The author would like to acknowledge Arkabrata Dattaroy and Pratim Bhattacharyya, PG Scholar, Jalpaiguri Government Engineering College for their immense help and support.
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