Flywheel energy storage motor patent

What is energy storage Flywheel?

Energy Storage Flywheel environment to minimize windage losses created by the high speed rotor. The rotor losses are dissipated via radiation to the housing and stationary components surrounding the rotor. To minimize rotor heating, low loss permanent magnet homopolar magnetic bearings and a permanent magnet motor generator are utilized.

What is a flywheel system?

The flywheel system incorporates a high speed permanent magnet motor/generator, a five axis active magnetic bearing system with associated controls, and a high strength steel hub, as show in Figure 2, for high operating tip speed. The flywheel is sealed for operation in a vacuum

How fast does a flywheel work?

The flywheel operates at a peak speed of 35,000 rpm, pulling power down to a minimum speed of 20,000 rpm. The tests conducted on the system have verified expected peak power output, energy storage capacity, maximum operating speed, and steady state thermal performance.

How does a flywheel work?

In this initial unit the steel housing is over two inches thick. In addition, until burst testing is conducted, the flywheel is operated within a burst cell during high speed testing. Stored energy is based on the mass of the flywheel and its operating speed. Usable energy is what is removed from the flywheel by the generator.

What is a flywheel target market?

The flywheel target market as related to the selection of the power and duration for the flywheel is also defined. The key subsystems in the flywheel system are described to show how the flywheel system is successfully integrated into a mechanical system. Test results are then presented.

What is a low cost energy storage Flywheel?

12880 Moore Street Cerritos, CA 90703 USA CALNETIX The design and development of a low cost 0.71 KW-HR energy storage flywheel to provide 100 KW for 15 seconds is described. The flywheel target market as related to the selection of the power and duration for the flywheel is also defined.