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This paper describes a simple ripple compensation method of suspension force and torque in a bearingless surface-mounted permanent magnet (SPM) motor with two-phase integrated winding configuration. Only two H-bridges or eight power transistors are used for the proposed topology. The neutral point of each phase is connected to the middle point of the power sources to superimpose the suspension and...
This paper describes a simple integrated winding configuration for a two-degrees-of-freedom (DOF) controlled bearingless motor with 6-slot/6-pole surface-mounted permanent magnet (SPM) structure. This bearingless SPM motor has only three concentrated coils, wound alternately in the stator's 6 slots, and employs only one three-phase inverter for both two-DOF radial magnetic suspension and motor drive...
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