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.

Date of Patent:
May. 22, 2018

Filed:

Jun. 08, 2015
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Fabiano Daher Adegas, Garching b. Munchen, DE;

Xiongzhe Huang, Shanghai, CN;

Pranav Agarwal, Niskayuna, NY (US);

Assignee:

GENERAL ELECTRIC COMPANY, Shcenectady, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03D 13/20 (2016.01); F03D 80/80 (2016.01); F03D 17/00 (2016.01); F03D 1/06 (2006.01); F03D 7/02 (2006.01); F03D 7/04 (2006.01); F03D 11/00 (2006.01);
U.S. Cl.
CPC ...
F03D 11/0091 (2013.01); F03D 1/0675 (2013.01); F03D 7/0224 (2013.01); F03D 7/043 (2013.01); F03D 13/20 (2016.05); F03D 17/00 (2016.05); F03D 80/82 (2016.05); Y02E 10/721 (2013.01); Y02E 10/723 (2013.01); Y02E 10/728 (2013.01);
Abstract

A control method and a control system for a wind turbine are disclosed. The control method comprises measuring wind turbine blade pitch angles; obtaining a wind turbine rotor acceleration value; determining whether a blade pitch runaway fault condition is occurring; and during the blade pitch runaway fault condition, adjusting a pitch angle command based at least in part on the rotor acceleration value, a pitch angle of at least one faulted blade and a pitch angle of a healthy blade; and controlling wind turbine blades based at least in part on the adjusted pitch angle command.


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