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Conventional bearingless permanent magnet motors have magnets on their rotor, and their maximum electric loading performance may be restricted by thermal instability and lack of mechanical integrity. To overcome such drawbacks, a novel bearingless motor with magnets, suspension force windings, and torque windings in the stator is proposed; the proposed motor is called bearingless flux-switching permanent...
In order to solve serious coupling problem among torque and suspension forces, increase output torque and improve fault tolerance performance for bearingless brushless DC (BBLDC) motors, a novel five-phase double-stator BBLDC motor is designed in this paper. Firstly, basic structure and operation principle of the BBLDC motor are analyzed in detail. Secondly, according to the Maxwell's stress tensor...
Abstract-A novel bearingless flux-switching permanent magnet (BFSPM) motor is proposed in this paper. Its suspension force windings, permanent magnets (PM) and armature windings are in the stator, while there is no PMs or windings are in the rotor. Firstly, its motor configuration and radial suspension force operation principle are introduced. Then, its static characteristics such as torque and radial...
The magnetic bearings are important component of magnetic suspension flywheel system. As three-pole magnetic bearings can be driven by three-phase inverter which is low power consumption, small volume and low cost, the three-pole magnetic bearings have attracted wide attention of scholars in the world. However, the force-current characteristic of the radial suspension force is nonlinear because of...
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