Flywheel power supply

Details Flywheel power supply Flywheel power supply

H - Electricity

02

K

H02K 7/02 (2006.01) F16F 15/03 (2006.01) F16F 15/315 (2006.01) H02K 7/08 (2006.01) H02K 7/09 (2006.01)

Patent

CA 2284655

A power supply device for providing uninterrupted power for a period of time is disclosed. The power supply device has a controller and a flywheel device. The flywheel device has a housing (45) that contains a flywheel rotor (15) and a motor/generator (80) rotor. The flywheel rotor (15) and the motor/generator (80) rotor are mounted on a common shaft. An active axial magnetic bearing (50) is located to support the shaft for frictionless rotation. The bearing provides support for the shaft, the flywheel rotor (15) and motor/generator rotor (80). The axial magnetic bearing (50) is attached to the housing (45) and provides, in combination with the motor/generator (80) rotor, a flux path and a magnetic field to exert a magnetic force to lift the motor/generator (80) rotor and the shaft on which it is mounted.

L'invention concerne un dispositif d'alimentation destiné à fournir une alimentation continue pendant un certain laps de temps. Ce dispositif d'alimentation comprend une unité de commande et un dispositif à volant magnétique. Ce dispositif à volant magnétique présente un carter (45), qui contient un rotor de volant magnétique (15), ainsi qu'un rotor moteur/générateur (80). Le rotor de volant magnétique (15) et le rotor moteur/générateur (80) sont montés sur le même arbre. Un palier magnétique axial actif (50) est placé de manière à soutenir cet arbre, lui permettant ainsi de pivoter sans frottement. Ce palier soutient en outre ledit arbre, le rotor de volant magnétique (15), et le rotor moteur/générateur (80). Le palier magnétique axial (50) est fixé audit carter (45) et fournit, en association avec ledit rotor moteur/générateur (80), une trajectoire de flux et un champ magnétique afin d'exercer une force magnétique qui permet de soulever ledit rotor moteur/générateur (80) et l'arbre sur lequel il est monté.

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