Patent ID: 7915869
Filing Date: 2011-03-29
Classification: H02K

Abstract:
1. 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 a plurality of exciter rotor windings wound thereon, the exciter stator having a plurality of exciter stator windings wound thereon; and a speed and rotor position signal source mounted on a shaft and configured, upon rotation thereof, to provide at least one of a speed and a rotor position signal to an exciter controller, the speed and rotor position signal being representative of the rotational speed and position of the shaft; wherein the exciter controller determines the rotational speed of the shaft based at least in part on the speed signal, wherein the exciter controller determines the rotor position based at least in part on the rotor position signal, wherein the exciter controller provides electrical excitation having a supply amplitude, a frequency, and a phase sequence based at least in part on the speed and rotor position signal, wherein the main generator rotor windings and the exciter rotor windings each have two phases, and wherein the exciter rotor windings and main generator rotor windings are wound on a common rotor core and the exciter stator and the main generator stator are wound on a common stator core.