Calculation of Suspending Force for New Bearingless Switched Reluctance Motor

In order to decouple the rotational torque and suspending radial force from stator winding, a novel bearingless switched reluctance motor (BLSRM) with hybrid stator poles structure is proposed in this paper. The proposed BLSRM has wide stator poles in rectangular axis. And other stator poles generate torque. So, it can be controlled the air-gap more easily with decoupled suspending radial force. The simple structure can reduce the number of power devices. A prototype design is analyzed by the finite element method (FEM) and mathematic model to evaluate the performances. The validity of structure and mathematic model is verified by simulation results.