Abstract:In previous modal analysis of a switched reluctance motor (SRM),the windings were treated simply as an additional mass and the influence of the stiffness of windings was ignored. In order to overcome the limitations,a finite element model of an SRM stator,which takes windings,the radiation rib,and the base into account,was constructed based on a three-dimensional (3D) physical model of SRM with a 6/4-pole structure. A modeling method in which the springs were used to simulate the flexible connection between the windings and stator core is presented. The validity of the modeling method was proven through finite-element modal analysis results of the SRM prototype. In order to reasonably consider the influence of the torque winding and suspension winding on the mass and stiffness of the stator of a bearingless SRM (BSRM) with double windings,the modeling method in which the springs were used to simulate the flexible connection was applied in 3D finite-element modal analysis for a BSRM with double windings. The results show that the modeling method in which the springs were used to simulate the flexible connection between the windings and stator core and the flexible connection between the torque winding and suspension winding is a effective method,it can take the influence of double windings into account,and it has high engineering practical value.