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. 27, 2016
Filed:
Nov. 10, 2010
Applicants:
Meng Gao, Shanghai, CN;
Cheng MA, Shanghai, CN;
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03D 7/02 (2006.01); F03D 7/04 (2006.01);
U.S. Cl.
CPC ...
F03D 7/0224 (2013.01); F03D 7/0264 (2013.01); F03D 7/047 (2013.01); F05B 2260/845 (2013.01); F05B 2270/1074 (2013.01); F05B 2270/32 (2013.01); F05B 2270/328 (2013.01); Y02E 10/723 (2013.01);
Abstract
A method and a system for operating a wind turbine () during a fault. The system includes a pitch motor for rotating each rotor blade (), second pitch sensors () for determining when the rotor blade () is rotated to a set point, and a backup pitch controller (). After a fault is detected, the method determines whether the wind speed in the vicinity of the wind turbine () is less than or greater than or equal to a maximum rated velocity of the wind turbine (). The backup pitch controller () then rotates the rotor blades () to a specific set point based on the determination.