Analysis and effect of static eccentricity fault on performance indicators of a synchronous reluctance motor

Abstract

: Fault diagnosis and condition monitoring of synchronous machines running underloadisakeydeterminantoftheirlifespanandperformance.Faultssuchasbrokenrotor bars, bent shafts and bearing issues lead to eccentricity faults. These faults if not monitored may lead to repair, replacement and unforeseen loss of income. Researchers who attempted to investigate this kind of machine stopped at characterizing and deduced ways, types and effects of rotor eccentricity fault on the machine inductances using the winding function method. A modified closed-form analytical model of an eccentric synchronus reluctance motor (SynRM) is developed here taking into cognizance the machine dimensions and winding distribution for the cases of a healthy and unhealthy SynRM. This paper