Maximum current point tracking for stator winding short circuits diagnosis in Switched Reluctance Motor

The performance of the Switched Reluctance Motors (SRMs) in different applications has widely been investigated by various studies. Therefore, the influences of some abnormal conditions have also applied significant orientations on the research areas. One of the most observed faults is the stator winding short circuit which may leads to produce the unbalanced distribution of magnetic field. In this paper, it is attempted to firstly introduce the new structure of dual stator SRM (DSSRM). Secondly, by means of three dimensional finite element method (3D FEM) the effects of short-circuit faults (SCF) on motor profiles are investigated, which static and dynamic behaviors of the motor in healthy and several SCF conditions evaluated. A new method namely as maximum current point tracking (MCPT) is introduced to evaluate the SCF in SRM, so an index is proposed to detect the numbers of shorted turns in faulty phase. The overall outcomes highlight the advantages of using this method and index which is general enough to be applied to any type of SRM.