Fault tolerant active magnetic bearing

Details Fault tolerant active magnetic bearing Fault tolerant active magnetic bearing

1992-11-02

1994-04-05

Voeltz, Emanuel T.

Electrical generator or motor structure

Dynamoelectric

Rotary

H02K 709

Patent

active

053008430

ABSTRACT:
A fault tolerant active magnetic bearing has at least three magnetically isolated control axes. To this end, the active magnetic bearing has a segmented stator which employs non-magnetic sections for magnetically isolating adjacent electromagnetic force actuators, and hence adjacent control axes. As a result, operating force actuators are not affected by magnetic poles experiencing a fault. Hence, in a three-phase active magnetic bearing rotor suspension control system, for example, full control of rotor shaft position can be maintained with only two functioning control axes.

REFERENCES:
patent: 3693037 (1972-09-01), West
patent: 4472651 (1984-09-01), Jones
patent: 4504098 (1985-03-01), Batterel et al.
patent: 4683391 (1987-07-01), Higuchi
patent: 4918831 (1990-04-01), Kliman
patent: 4947067 (1990-08-01), Habermann et al.
patent: 5051637 (1991-09-01), Harris et al.

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