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. 06, 2011
Filed:
Jun. 08, 2009
Applicants:
Thomas Steiniche Bjertrup Nielsen, Randers SV, DK;
BO Juul Pedersen, Hadsten, DK;
Christopher John Spruce, Surrey, GB;
Inventors:
Thomas Steiniche Bjertrup Nielsen, Randers SV, DK;
Bo Juul Pedersen, Hadsten, DK;
Christopher John Spruce, Surrey, GB;
Assignee:
Vestas Wind Systems A/S, Randers SV, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03D 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for damping edgewise oscillations in one or more blades of a wind turbine includes the steps of detecting if one or more of the blades oscillates edgewise during operation of the wind turbine, and substantially cyclically generating a pitch angle difference between at least two of the blades. Further provided is an active stall controlled wind turbine and use hereof.