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.:
Date of Patent:
Oct. 02, 2018
Filed:
Jan. 17, 2012
Shu Yu Cao, Singapore, SG;
Bing LI, Singapore, SG;
Anshuman Tripathi, Singapore, SG;
Hock Heng Thia, Singapore, SG;
Rasool Beevi D-o Mohamed Arif, Singapore, SG;
Kheng Hong Ang, Singapore, SG;
Shu Yu Cao, Singapore, SG;
Bing Li, Singapore, SG;
Anshuman Tripathi, Singapore, SG;
Hock Heng Thia, Singapore, SG;
Rasool Beevi D-O Mohamed Arif, Singapore, SG;
Kheng Hong Ang, Singapore, SG;
VESTAS WIND SYSTEMS A/S, Aarhus N, DK;
Abstract
A method for diagnostic monitoring of a wind turbine generator system, said wind turbine generator system comprising a generator, a drive train, and a number of sensors for providing signals and a control system. The method comprising the selection of three sets of signals from said sensors. From the three sets of signals three conditioned sets of signals are obtained by high pass filtering said first set of signals, low pass filtering the second set of signals, and forming a moving average value on the third set of signals. Based on each of said first, second and third set of conditioned signals an evaluation is performed in order to determine a fault, where said evaluation comprises comparing the first, second and third set of conditioned signals with reference values. If said comparison indicates a fault an alarm is set.