30-01-2014 дата публикации
Номер: US20140028132A1
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. 1. An apparatus , comprising:a first bearingless motor; anda second bearingless motor, whereinthe first bearingless motor and the second bearingless motor are configured to simultaneously suspend the central rotor in a radial direction and to rotate the central rotor.2. The apparatus of claim 1 , wherein a combination of a mass claim 1 , a radius claim 1 , and a speed of the central rotor are sufficient to operate the apparatus as a generator continuously for greater than fifteen minutes.3. The apparatus of claim 1 , wherein the central rotor has a cylindrical shape.4. The apparatus of claim 1 , wherein the first bearingless motor is positioned above the central rotor and the second bearingless motor is positioned below the central rotor.5. The apparatus of claim 1 , wherein the first bearingless motor and the second bearingless motor are configured to suspend the central rotor in a non-vertical direction.6. The apparatus of claim 1 , wherein the first bearingless motor and the second bearingless motor comprise bearingless motor/generators.7. The apparatus of claim 1 , wherein at least one of the first bearingless motor and the second bearingless motor comprises a rotor outside of a stator.8. The apparatus of claim 1 , further comprising:an active or a passive axial magnetic bearing configured to provide axial control of the central rotor.9. The apparatus of claim 8 , wherein the active or passive magnetic bearing has a permanent ...
Подробнее
