Patent ID: 8085004

Claim:
A generator system comprising: a main generator having a main generator rotor and a main generator stator, the main generator rotor with a plurality of main generator rotor windings wound thereon, the main generator stator with a plurality of main generator stator windings wound thereon; an exciter having an exciter rotor and an exciter stator, the exciter rotor having exciter rotor windings wound thereon, the exciter stator having exciter stator windings wound thereon; wherein the exciter rotor is configured to provide two phase excitation current to the main generator rotor windings; wherein the main generator rotor windings have two phases; wherein the main generator rotor and the exciter rotor are configured to rotate in a first direction at a variable rotational speed; wherein an exciter controller supplies a multi-phase electrical excitation to the exciter stator windings in the phase sequence that is in either the first direction or a second direction opposite the first direction; and wherein the exciter rotor windings and the main generator rotor windings have a phase shift in space and time.