| US 7,466,109 B1 | ||
| Systems and methods involving variable speed generators | ||
| Einar Vaughn Larsen, Charlton, N.Y. (US); James Michael Fogarty, Schenectady, N.Y. (US); and Cyrus David Harbourt, Roanoke, Va. (US) | ||
| Assigned to General Electric Company, Schenectady, N.Y. (US) | ||
| Filed on Apr. 07, 2008, as Appl. No. 12/98,585. | ||
| Int. Cl. H02P 9/44 (2006.01) | ||
| U.S. Cl. 322—59 [322/29; 322/37; 322/46] | 14 Claims |
| 1. An electrical generation system comprising:
a generator, wherein the generator includes:
a stator portion; and
a rotor portion;
a variable frequency generator (VFG) exciter, wherein the VFG exciter includes:
a first converter, operative to convert DC current to AC current connected to a DC link; and
a second converter, operative to convert DC current to AC current connected to the DC link;
a first switch operative, when closed, to connect the first converter to the stator portion while the generator is operating
in a starting condition, wherein the first switch is open while the generator is operating in a running condition; and
a second switch operative, when closed, to connect the first converter and the second converter in parallel, to the rotor
portion while the generator is operating in the running condition, wherein the second switch is open while the generator is
operating in the starting condition.
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