Patent · US Active

Bearingless flywheel systems, winding and control schemes, and sensorless control

US9515531B2 · kind B2 · utility

5Cited by

23References

20Claims

0Family size

Assignee

The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

Ralph H. Jansen · Grafton, US
Larry M. Trase · Litchfield, US
Timothy P. Dever · Fairview Park, US
Peter E. Kascak · North Ridgeville, US
Thomas Kraft · Obertraubling, DE

Key dates

Filing date	Dec 21, 2012
Grant date	Dec 6, 2016
Priority date	—
Expiry date	Oct 24, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/16
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Flywheel systems are disclosed that provide increased energy density and operational effectiveness. A first bearingless motor and a second bearingless motor may be configured to simultaneously suspend the central rotor in a radial direction and to rotate the central rotor. However, certain implementations may have one motor or more than two motors, depending on the design. A plurality of the flywheel systems may be collectively controlled to perform community energy storage with higher storage capacities than individual flywheel systems.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.