Patent ID: 8575900
Filing Date: 2013-11-05
Classification: B64D,F05B,H02P

Abstract:
1. A self-deicing generator apparatus comprising: an air-driven turbine including a turbine hub; a generator shaft rotatably coupled to the turbine hub; a stationary generator assembly including a main generator stator having a plurality of main generator stator windings, and an exciter stator having a plurality of exciter field windings; a rotatable assembly including a main generator rotor and an exciter rotor mounted to the generator shaft, the exciter rotor having a plurality of exciter armature windings disposed coaxially adjacent to the plurality of exciter field windings, and the main generator rotor having a plurality of main rotor windings disposed coaxially adjacent to the plurality of main stator windings, the main generator rotor and the main generator stator separated by an air gap; and a deicing circuit operable during a time when the rotatable assembly is not being rotated by the generator shaft, the deicing circuit including a first power source for selectively energizing the plurality of exciter field windings with an alternating input current, the alternating input current inducing an exciter output current in the exciter armature windings that is provided to energize the main rotor windings for producing resistance heating around the main generator rotor to melt or sublimate a quantity of ice accumulated in the air gap.