Regenerative static excitation system for superconducting rotor
AssigneeSiemens Energy, Inc.
InventorRobert J. Nelson
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Abstract
The present invention provides for a static excitation system for a superconducting rotor that comprises multiple brushes (12) in contact with the superconducting rotor winding (6), normally via collector rings and field leads. A power conditioning device (16) is connected to the brushes (12), and an energy storage device (18) is linked to the power conditioning device (16). The power conditioning device provides power from the energy storage device to the superconducting rotor when required, and when power to the superconducting rotor is not required, the power conditioning device takes excess power from the superconducting rotor and stores it in the energy storage device.
Claims18
A static excitation system for a superconducting rotor comprising:
- a plurality of brushes in contact with said superconducting rotor;
- a power conditioning device;
- and
- an energy storage device;
- wherein said energy storage device is linked to said power conditioning device, and wherein said power conditioning device is connected to said plurality of brushes;
- wherein said power conditioning device provides power from said energy storage device to said superconducting rotor when required, and when power to said superconducting rotor is not required, said power conditioning device takes excess power from said superconducting rotor and stores it in said energy storage device.
A static excitation system for a superconducting rotor comprising:
- a brushless exciter system;
- a power conditioning device;
- and
- an energy storage device;
- wherein said energy storage device is linked to said power conditioning device, and wherein said power conditioning device is connected to said brushless exciter system;
- wherein said power conditioning device provides power from said energy storage device to said superconducting rotor when required, and when power to said superconducting rotor is not required, said power conditioning device takes excess power from said superconducting rotor and stores it in said energy storage device;
- wherein said static excitation system is independent from an external power grid.
A method for supplying a superconducting rotor with static excitation comprising:
- obtaining a generator disposed within windings, said generator also having a shaft and a set of slip rings on said shaft;
- placing brushes in contact with said set of slip rings;
- connecting said brushes to a power conditioning device;
- linking said power conditioning device to an energy storage device;
- wherein said power conditioning device provides power from said energy storage device to said superconducting rotor when required, and when power to said superconducting rotor is not required, said power conditioning device takes excess power from said superconducting rotor and stores it in said energy storage device.
Dependencies are inferred from the claim text.