| US 7,573,144 B1 | ||
| Reconfigurable power system using multiple phase-set electric machines | ||
| Daniel M. Saban, Corona, Calif. (US); Raed Ahmad, Placentia, Calif. (US); and Zhiguo Pan, Rowland Heights, Calif. (US) | ||
| Assigned to Direct Drive Systems, Inc., Cerritos, Calif. (US) | ||
| Filed on Feb. 07, 2008, as Appl. No. 12/12,990. | ||
| Int. Cl. H02J 9/08 (2006.01) | ||
| U.S. Cl. 290—4R | 10 Claims |
| 1. A power system for supporting an AC network comprising:
a gas turbine;
a flywheel for providing power when the peak loads exceed a predetermined level;
a first electric machine having a first AC interface coupled to said gas turbine;
a second electric machine having a second AC interface coupled to said flywheel, said first and second electric machines being
substantially identical;
a first power device for coupling power from said first electric machine to an AC power grid;
a second power device coupled to said second electric machine for driving said flywheel and coupling power from said second
electric machine to said AC power grid, said first power device and said second power device being substantially identical;
and
means for interconnecting first and second switch means at said first and second AC interfaces or through said AC power grid.
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