Cryogenic exciter
AssigneeGeneral Electric Company
InventorsJames William Bray, Luis Jose Garces
Life of this patent
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Abstract
The disclosed technology is a cryogenic static exciter. The cryogenic static exciter is connected to a synchronous electric machine that has a field winding. The synchronous electric machine is cooled via a refrigerator or cryogen like liquid nitrogen. The static exciter is in communication with the field winding and is operating at ambient temperature. The static exciter receives cooling from a refrigerator or cryogen source, which may also service the synchronous machine, to selected areas of the static exciter and the cooling selectively reduces the operating temperature of the selected areas of the static exciter.
Claims17
An apparatus for a cryogenic static exciter comprising:
- a synchronous electric machine having a field winding;
- a static exciter in communication with said field winding;
- said static exciter having at least one selected area with electronic circuitry, said electronic circuitry having an operating temperature;
- wherein said at least one selected area is cryogenically cooled, thereby reducing said operating temperature of said electronic circuitry.
An apparatus for cooling a static exciter comprising:
- a synchronous electric machine having a field winding;
- a static exciter in communication with said field winding;
- said static exciter having at least one selected area with electronic circuitry, said electronic circuitry having an operating temperature;
- wherein said at least one selected area receives cryogenic cooling to cool said electronic circuitry;
- and
- wherein said at least one selected area receives refrigerant to cool said electronic circuitry;
- and
- wherein said refrigeration and cryogenic cooling reduces said operating temperature of said electronic circuitry.
A method for a cryogenic static exciter comprising:
- providing a synchronous electric machine having a field winding;
- providing a static exciter in communication with said field winding;
- said static exciter having at least one selected area with electronic circuitry, said electronic circuitry having an operating temperature;
- cryogenically cooling said at least one selected area of said static exciter, thereby reducing said operating temperature of said electronic circuitry.
Dependencies are inferred from the claim text.