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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.:

US 10544780 B1

PDFFull Text
Date of Patent:
Jan. 28, 2020

Filed:

Sep. 26, 2014

Method for controlling a wind power plant and a wind power plant

Applicant:

Vestas Wind Systems A/s, Aarhus N., DK;

Inventors:

Manoj Gupta, Singapore, SG;

Amit Kumar Gupta, Singapore, SG;

Dilip Kumar Guru, Singapore, SG;

Assignee:

Vestas Wind Systems A/S, Aarhus N., DK;

Attorney:

Wood Herron & Evans LLP

Primary Examiner:

Viet P Nguyen

Int. Cl.
CPC ...
F03D 9/00 (2016.01); F03D 7/04 (2006.01); H02J 3/24 (2006.01); H02H 7/30 (2006.01); H02P 9/00 (2006.01); H02J 3/12 (2006.01); H02J 3/38 (2006.01); F03D 7/02 (2006.01); H02J 3/16 (2006.01); F03D 17/00 (2016.01); F03D 9/25 (2016.01); H02H 7/06 (2006.01); H02P 9/10 (2006.01);
U.S. Cl.
CPC ...
F03D 7/048 (2013.01); F03D 7/0284 (2013.01); F03D 7/043 (2013.01); F03D 9/255 (2017.02); F03D 9/257 (2017.02); F03D 17/00 (2016.05); H02H 7/067 (2013.01); H02H 7/30 (2013.01); H02J 3/12 (2013.01); H02J 3/16 (2013.01); H02J 3/24 (2013.01); H02J 3/38 (2013.01); H02J 3/386 (2013.01); H02P 9/006 (2013.01); H02P 9/10 (2013.01); H02J 2003/388 (2013.01); Y02E 10/763 (2013.01); Y02E 40/34 (2013.01);
Abstract

A method for controlling a wind power plant, the wind power plant including a plant controller for controlling a plurality of wind turbine generators. The method for controlling a wind power plant allows the wind power plant to continue operating through a grid fault in a weak grid environment. In the method, a fault recovery process is carried out with a wind turbine power controller during a wind turbine fault recovery state to determine a grid voltage (VWTG), compare the grid voltage to a predetermined reference voltage (Vref) to obtain a difference value, and determine a current reference (QrefVC) based on the difference value for generating a reactive current (Idref) for regulating the grid voltage to the predetermined reference grid voltage. A corresponding wind power plant is further provided.

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