US 11,711,036 B1
Electric power generation system (EPGS) controller excitation system architecture for variable frequency generators
Dhaval S. Patel, Schaumburg, IL (US); Adrian E. Vandergrift, Rockton, IL (US); and Sunil S. Patel, Rockford, IL (US)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation (HSC), Charlotte, NC (US)
Filed on May 6, 2022, as Appl. No. 17/738,331.
Int. Cl. H02P 9/02 (2006.01)
CPC H02P 9/02 (2013.01) 12 Claims
OG exemplary drawing
 
1. A system comprising:
a generator control unit (GCU) including:
a first rectifier; and
a second rectifier, wherein each of the first rectifier and the second rectifier has a separate input to receive AC power from a separate respective permanent magnet generator (PMG); and
a variable frequency generator (VFG) including:
a first permanent magnet generator (PMG) operatively connected to provide AC power to the first rectifier; and
a second PMG operatively connected to provide AC power to the second rectifier;
wherein the VFG further comprises an exciter operatively connected to receive DC exciter current from the GCU, wherein the exciter is configured to output AC power.