Comparison of Mechanical Vibration in a Double-Stator Switched Reluctance Machine and a Conventional Switched Reluctance Machine

摘要

Vibration and acoustic noise are viewed as the most important drawback of switched reluctance machines which prohibit their widespread use in many industries. Double-stator switched reluctance machines (DSSRMs) can be considered as a solution to this problem by presenting a unique topology which reduces the radial forces in the machine. This paper compares vibration behavior of a DSSRM and a conventional SRM using a multi-physic analysis. Finite element (FE) electromagnetic method is used to calculate force density at various parts of the stator surface in both machines. These force densities are then used in a FE structural analysis as an input to find the acceleration, deformation and velocity of vibrating surface in selected points on the outer surface of the machine.