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:
Sep. 15, 2015
Filed:
Jun. 29, 2012
Applicants:
Michael Friedrich, Silkeborg, DK;
Peter Grabau, Kolding, DK;
Carsten Bendix Sørensen, Højbjerg, DK;
Inventors:
Assignee:
Envision Energy (Denmark) ApS, Silkeborg, DK;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03D 7/02 (2006.01);
U.S. Cl.
CPC ...
F03D 7/0204 (2013.01); F05B 2270/1095 (2013.01); F05B 2270/309 (2013.01); F05B 2270/321 (2013.01); F05B 2270/326 (2013.01); Y02E 10/721 (2013.01); Y02E 10/723 (2013.01);
Abstract
A method of controlling the yawing of two-bladed wind turbine is described. The yaw speed of the turbine is increased when the wind turbine rotor blades are in a substantially vertical position, and the yaw speed may be reduced when the blades are substantially horizontal. By modulating the yaw rate based on the rotational angle of the blades, the effect of the yaw moments on the wind turbine structure is reduced, and the wind turbine may be designed to take into account such reduced forces.