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:
Sep. 08, 2020

Filed:

May. 28, 2019
Applicant:

General Electric Company, Schenectady, NY (US);

Inventors:

Vaidhya Nath Venkitanarayanan, Schenectady, NY (US);

Patrick Hammel Hart, Ballston Lake, NY (US);

Alina Fatima Moosvi, Ballston Spa, NY (US);

Charles Joseph Kosuth, Albany, NY (US);

Enno Ubben, Steinfurt, DE;

Alev Akbulut, Rheine, DE;

Assignee:

General Electric Company, Schenectady, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03D 7/02 (2006.01); F03D 17/00 (2016.01); F03D 9/10 (2016.01); F03D 9/25 (2016.01); F03D 7/04 (2006.01);
U.S. Cl.
CPC ...
F03D 7/028 (2013.01); F03D 7/04 (2013.01); F03D 9/10 (2016.05); F03D 9/257 (2017.02); F03D 17/00 (2016.05); F05B 2270/32 (2013.01);
Abstract

A method for operating a wind farm connected to a power grid that demands a reactive power requirement that varies with active power includes monitoring a wind speed at each of the plurality of wind turbines in the wind farm. When the wind speed is within a cut-in wind speed range, the method includes determining a reactive power margin of the wind farm based on the reactive power requirement at an active power output corresponding to the wind speed and a reactive power availability of each of the plurality of wind turbines at the wind speed. The method also includes determining a lowest possible cut-in rotor speed for each of the plurality of wind turbines that satisfies the reactive power margin. Further, the method includes commanding each of the plurality of wind turbines to cut-in and begin to produce power at the lowest possible cut-in rotor speed that satisfies the reactive power margin.


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