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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 9899829 B1

PDFFull Text
Date of Patent:
Feb. 20, 2018

Filed:

Feb. 04, 2015

Passive fault current limiter for wind power applications

Applicant:

Siemens Aktiengesellschaft, München, DE;

Inventor:

Arwyn Thomas, Cheshire, GB;

Assignee:

SIEMENS AKTIENGESELLSCHAFT, , DE;

Attorney:

Schmeiser Olsen & Watts LLP

Primary Examiner:

Tuyen Nguyen

Int. Cl.
CPC ...
H01F 21/00 (2006.01); H02H 9/02 (2006.01); H01F 27/24 (2006.01); H01F 27/28 (2006.01); H01F 27/38 (2006.01); H02H 7/06 (2006.01); H02K 15/04 (2006.01); H01F 3/10 (2006.01); H01F 29/14 (2006.01); H01F 38/02 (2006.01);
U.S. Cl.
CPC ...
H02H 9/02 (2013.01); H01F 3/10 (2013.01); H01F 21/00 (2013.01); H01F 27/24 (2013.01); H01F 27/2823 (2013.01); H01F 27/2895 (2013.01); H01F 27/38 (2013.01); H01F 29/146 (2013.01); H01F 38/023 (2013.01); H02H 7/06 (2013.01); H02K 15/0435 (2013.01); H01F 2003/103 (2013.01); Y10T 29/49009 (2015.01);
Abstract

A device for limiting a fault current for a generator, in particular of a wind turbine is provided. A first frame is made of a ferromagnetic material, wherein the first frame comprises a first frame section and a further first frame section, wherein a first gap is formed between the first frame section and the further first frame section. A first coil is wound around the first frame section, wherein the first coil is connectable to a first stator winding of a stator of the generator. A further first coil is wound around the further first frame section, wherein the further first coil is connectable to an electronic device. A first permanent magnet element is arranged inside the first gap. The first frame section and the further first frame section are formed with respect to each other such that an electromagnetic interaction between the first coil and the first permanent magnet element and the further first coil and the first permanent magnet element is provided.

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