Fault tolerant homopolar magnetic bearings

Details Fault tolerant homopolar magnetic bearings Fault tolerant homopolar magnetic bearings

2005-06-01

2008-09-30

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

07429811

ABSTRACT:
A magnetic bearing for supporting a spinning shaft in the radial direction and/or the axial direction includes a rotor formed on the shaft and a stator positioned around the rotor. Poles in the stator creates a magnetic field that supports the rotor. The number of poles is at least sufficient to produce a selected control force if there is an at least partial loss of current to one or more of the poles. The bearing also includes a set of permanent magnetic elements associated with the poles that create a homopolar, bias magnetic field. A controller connected to the poles is programmed with instructions to change the current to each pole in response to at least a partial loss of current to one or more of the poles and can include a current distribution matrix for determining a current value for each pole in such instances.

REFERENCES:
patent: 5710494 (1998-01-01), Paweletz
patent: 6078119 (2000-06-01), Satoh et al.
patent: 6297574 (2001-10-01), Schob et al.
patent: 6885121 (2005-04-01), Okada et al.

Affiliated with

Also associated with

Rating

Fault tolerant homopolar magnetic bearings does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fault tolerant homopolar magnetic bearings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fault tolerant homopolar magnetic bearings will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3984412