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:
Jul. 23, 2019

Filed:

Oct. 15, 2015
Applicant:

Nutech Ventures, Lincoln, NE (US);

Inventors:

Wei Qiao, Lincoln, NE (US);

Xiang Gong, Lincoln, NE (US);

Assignee:

NUtech Ventures, Lincoln, NE (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/34 (2006.01); F03D 7/02 (2006.01); F03D 17/00 (2016.01); G01R 31/42 (2006.01); H02P 29/02 (2016.01);
U.S. Cl.
CPC ...
G01R 31/343 (2013.01); F03D 7/0296 (2013.01); F03D 17/00 (2016.05); G01R 31/42 (2013.01); F05B 2270/334 (2013.01); H02P 29/02 (2013.01); Y02E 10/723 (2013.01);
Abstract

Turbine generator faults can be detected by receiving a current signal from the turbine generator, and synchronously sampling the current signal to obtain a set of current signal samples that are evenly spaced in the phase domain, in which phase differences between adjacent current signal samples in the set of current signal samples are substantially the same. The process includes generating a frequency spectrum of the current signal samples, identifying one or more excitations in the frequency spectrum, and detecting a fault in the turbine generator based on the one or more excitations in the frequency spectrum.


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