Patent ID: 7116006
Filing Date: 2006-10-03
Classification: F03D,H02K,Y02E

Abstract:
1. A wind energy conversion system comprising a wind turbine comprising a stator, a blade assembly mounted for rotation about a rotation axis in response to air flow through said wind turbine, and a rotor carried by said blade assembly for rotation past said stator to produce an electrical output, said stator including a stator coil, said rotor including a permanent magnet, said blade assembly carrying said rotor for rotation in a rotational path of movement disposed in a plane perpendicular to said rotation axis, said rotor coming into alignment with said stator as said rotor is rotated in said rotational path of movement, said stator being spaced from said rotor aligned therewith by an air gap having a size corresponding to the size of the separation distance between said stator and said rotor aligned therewith in a direction parallel to said rotation axis; and an air gap adjustment mechanism including a track along which said stator is moved toward and away from said plane of said rotational path of movement to respectively decrease and increase the size of said air gap.