Flywheel system with synchronous reluctance and permanent magnet generators
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United States of America Patent
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Mar 6, 2007
Issued Date -
N/A
app pub date -
Oct 14, 2005
filing date -
Jun 6, 2003
priority date (Note) -
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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.
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