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:
Dec. 28, 2021

Filed:

Apr. 09, 2018
Applicant:

Xinjiang Goldwind Science & Technology Co., Ltd., Xinjiang, CN;

Inventors:

Yongming Li, Beijing, CN;

Shuchun Zhao, Beijing, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03D 9/00 (2016.01); H02P 9/04 (2006.01); F03D 7/02 (2006.01); F03D 7/04 (2006.01);
U.S. Cl.
CPC ...
F03D 7/0224 (2013.01); F03D 7/046 (2013.01); F05B 2270/328 (2013.01);
Abstract

Provided are a method and an apparatus for controlling a pitch of a wind turbine under an extreme turbulence wind condition. The method includes: obtaining a first pitch parameter for a current time; obtaining a historical second pitch parameter in a predetermined time period before the current time; determining an updated threshold based on the obtained historical second pitch parameter; comparing the first pitch parameter for the current time with the determined updated threshold; and updating the first pitch parameter for the current time based on a result of the comparison.


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