Wind power electricity generating system and relative control method
AssigneeWilic S. AR. L.
InventorGunther Stockner
Life of this patent
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Abstract
A wind power electricity generating system having a nacelle; a rotary assembly rotating about an axis with respect to the nacelle; and an angular speed detection device having at least one image sensor facing a surface of the rotary assembly.
Claims42
A wind power electricity generating system comprising:
- a nacelle;
- a rotary assembly rotatable about an axis with respect to the nacelle;
- and
- a rotary assembly angular speed detection device fixed to the nacelle and including at least one image sensor facing a surface of the rotary assembly.
A wind power electricity generating system angular speed detection device comprising:
- at least one image sensor fixed to a nacelle and facing a surface of a rotary assembly rotatable rotate about an axis with respect to the nacelle, said at least one image sensor acquires a plurality of images of a plurality of portions of the surface of the rotary assembly at an acquisition rate;
- at least one light source facing said surface, said at least one light source and configured to illuminate an area of the surface covered by the image sensor;
- and
- an image processing unit coupled to the image sensor, said image processing unit processes at least two of any overlapping acquired images to detect an angular speed of the rotary assembly.
A method of controlling a wind power electricity generating system including a nacelle and a rotary assembly rotatable about an axis with respect to the nacelle and a rotary assembly angular speed detection device, said method comprising:
- (a) acquiring a plurality of images of a surface of the rotary assembly by the rotary assembly angular speed detection device fixed to the nacelle;
- (b) determining an angular speed of the rotary assembly based on the acquired images;
- and
- (c) controlling the wind power electricity generating system based on the determined angular speed of the rotary assembly.
A wind power electricity generating system comprising:
- a nacelle;
- a rotary assembly rotatable about an axis with respect to the nacelle;
- and
- a rotary assembly angular speed detection device fixed to the nacelle and including:
- a television camera facing a surface of the rotary assembly, said television camera acquires a plurality of images at an acquisition rate, and
- an image processing unit coupled to the television camera, said image processing unit receives the plurality of images processes at least two of any overlapping images and determines a displacement of the rotary assembly.
A method of controlling a wind power electricity generating system including a nacelle, a rotary assembly rotatable about an axis with respect to the nacelle and a television camera, said method comprising:
- (a) acquiring a plurality of images of a surface of the rotary assembly by the television camera fixed to the nacelle;
- (b) processing at least two of any overlapping images of the surface of the rotary assembly;
- and
- (c) determining a displacement of the rotary assembly.
Dependencies are inferred from the claim text.