System for controlling a magnetically levitated rotor

Details System for controlling a magnetically levitated rotor System for controlling a magnetically levitated rotor

2006-04-04

2006-04-04

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S090000, C310S074000

Reexamination Certificate

active

07023118

ABSTRACT:
In a rotor assembly having a rotor supported for rotation by magnetic bearings, a processor controlled by software or firmware controls the generation of force vectors that position the rotor relative to its bearings in a “bounce” mode in which the rotor axis is displaced from the principal axis defined between the bearings and a “tilt” mode in which the rotor axis is tilted or inclined relative to the principal axis. Waveform driven perturbations are introduced to generate force vectors that excite the rotor in either the “bounce” or “tilt” modes.

REFERENCES:
patent: 4245869 (1981-01-01), Scheffer et al.
patent: 4866318 (1989-09-01), Habermann et al.
patent: 5027280 (1991-06-01), Ando et al.
patent: 5355042 (1994-10-01), Lewis
patent: 5578880 (1996-11-01), Lyons et al.
patent: 6617734 (2003-09-01), Taniguchi
patent: 6664680 (2003-12-01), Gabrys
NASA TM 2001-210701; “A Comprehensive C++ Controller for a Magnetically Supported Vertical Rotor”; Carlos R. Morrison, Apr. 2001.

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