The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2017
Filed:
Dec. 15, 2011
Applicants:
Justin Creaby, Broomfield, CO (US);
Robert Bowyer, London, GB;
Christopher Spruce, Leatherhead, GB;
Inventors:
Assignee:
VESTAS WIND SYSTEMS A/S, Aarhus N, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03D 7/02 (2006.01); F03D 17/00 (2016.01);
U.S. Cl.
CPC ...
F03D 7/0264 (2013.01); F03D 7/0208 (2013.01); F03D 7/0268 (2013.01); F03D 17/00 (2016.05); F05B 2260/82 (2013.01); F05B 2270/309 (2013.01); F05B 2270/321 (2013.01); F05B 2270/322 (2013.01); F05B 2270/332 (2013.01); F05B 2270/404 (2013.01); F05B 2270/702 (2013.01); F05B 2270/8042 (2013.01); Y02E 10/723 (2013.01);
Abstract
A wind turbine has a Lidar device to sense wind conditions upstream of the wind turbine. Signals from the wind turbine are processed to detect an extreme change in wind direction. The detection is performed by differentiating the rate of change of wind direction and filtering for a period of time. On detection of extreme change the system controller takes the necessary evasive action which may include shutting down the turbine, commencing an immediate yawing action, and de-rating the turbine until the yawing action is complete.