Flywheel system with synchronous reluctance and permanent...

Details Flywheel system with synchronous reluctance and permanent... Flywheel system with synchronous reluctance and permanent...

2007-03-06

2007-03-06

Waks, Joseph (Department: 2834)

Prime-mover dynamo plants

Miscellaneous

Drive gearing

C310S090500

Reexamination Certificate

active

11251394

ABSTRACT:
A flywheel system incorporates a variable speed synchronous reluctance motor-generator and a variable speed permanent magnet generator for providing backup power. Rotating elements are supported by electromagnetic bearings and electric power provided by the backup generator maintains electromagnetic bearing operation during that portion of a coast down period when shaft speed falls below the minimum speed required for operation of the synchronous reluctance motor-generator.

REFERENCES:
patent: 4278928 (1981-07-01), Griffiths et al.
patent: 4444444 (1984-04-01), Benedetti et al.
patent: 4612494 (1986-09-01), Kawamura
patent: 5245270 (1993-09-01), Akiyama
patent: 5574345 (1996-11-01), Yoneta et al.
patent: 5998899 (1999-12-01), Rosen et al.
patent: 09233803 (1997-09-01), None
patent: WO 2004068677 (2004-08-01), None

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