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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 9745959 B1

PDFFull Text
Date of Patent:
Aug. 29, 2017

Filed:

Jul. 26, 2013

Inrush current protection for wind turbines and wind farms

Applicant:

General Electric Company, Schenectady, NY (US);

Inventor:

Andre Langel, Stadtlohn, DE;

Assignee:

General Electric Company, Schenectady, NY (US);

Attorneys:

GE Global Patent Operation

Douglas D. Zhang

Primary Examiner:

Fritz M Fleming

Int. Cl.
CPC ...
F03D 7/00 (2006.01); F03D 9/00 (2016.01); H02J 3/38 (2006.01); H02J 3/42 (2006.01); H02J 9/06 (2006.01); F03D 7/04 (2006.01); F03D 9/11 (2016.01); F03D 9/25 (2016.01);
U.S. Cl.
CPC ...
F03D 9/003 (2013.01); F03D 7/00 (2013.01); F03D 7/042 (2013.01); F03D 7/048 (2013.01); F03D 9/11 (2016.05); F03D 9/255 (2017.02); F03D 9/257 (2017.02); H02J 3/386 (2013.01); H02J 3/42 (2013.01); H02J 9/06 (2013.01); F05B 2260/42 (2013.01); F05B 2270/1071 (2013.01); F05B 2270/10711 (2013.01); Y02B 10/72 (2013.01); Y02E 10/723 (2013.01); Y02E 10/763 (2013.01); Y02E 10/766 (2013.01); Y02E 20/14 (2013.01); Y10T 307/615 (2015.04); Y10T 307/724 (2015.04); Y10T 307/735 (2015.04);
Abstract

A wind turbine is provided. The wind turbine includes a transformer having a low-voltage side and a high-voltage side. The transformer is configured to step up a voltage of the low-voltage side of the transformer to a voltage of an external grid. The wind turbine further includes an electrical power generating unit which is connected to the low-voltage side of the transformer and configured to feed an ac-power to the low-voltage side of the transformer. A charging device of the wind turbine is connected to the low-voltage side of the transformer and configured to charge the low-voltage side of the transformer when the generator does not feed ac-power to the low-voltage side of the transformer.

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