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Magnetic field analysis using an analytical method in a radial magnetic bearing

This paper presents an analytical method for predicting the performance of magnetic bearing (MB). The approach based on magnetomotive force (MMF) and the permeance function is employed to compute the air-gap flux density distribution. The stator slotting effect and rotor eccentricity are taken into account to determine the permeance function. The analytical results are compared with finite-element method (FEM) to verify the accuracy of this analytical method.