In magnetically levitated system in certain applications like magnetically levitated train or bearingless motors the distance between the magnet and the levitated object has to be constant. The nonlinear system in such cases can be linearized and transfer function of the system is obtained. But a proper controller is required to manipulate the current through the magnet coil. The simplest contr...

Bearingless permanent magnet synchronous motor (BPMSM) has the characteristic of both conventional permanent magnet synchronous motor and traditional magnetic bearings. In this paper, the design and analysis of BPMSM by using Matlab/Simulink and ANSYS Maxwell are presented. The principle of electromagnetic force is utilized to ensure a stable levitation operation of BPMSM. The BPMSM mathematica...

First, a topology of consequent-pole bearingless flux reversal (CPBFR) motor suitable for flywheel battery magnetic suspension support systems is proposed, and the specific forms different winding pitches are analyzed. Then, phenomenon complementarity, which unique to certain permanent magnet motors, explained theoretically. The density distribution characteristics no-load air gap rotor given, ...

This paper deals with magnetic modeling of a bearingless synchronous reluctance motor. The motor under consideration includes two separate sets of three-phase windings, one for torque production and the other one for radialforce production. This paper demonstrates by means of finite-element analysis, that it is unrealistic to assume the two three-phase windings to be decoupled from one another....

Dual-armature alternating pole bearingless flux reversal permanent magnet (DAAPBFR) machines have the characteristics of high speed and non-contact operation; they are suitable for aerospace, flywheel battery, other wide speed-range applications. Based on analysis mechanism torque suspension force, power dimension equation machine is given, which lays foundation design structural parameters. Fi...