公开(公告)号：EP2635806B1

公开(公告)日：2015-07-15

申请号：EP11779335.6

申请日：2011-10-31

Applicant: Vestas Wind Systems A/S

Inventor： OLESEN, Ib Svend ,  GLAVIND, Lars

IPC: F03D7/02 ,  F03D11/00

CPC classification number: F03D17/00 ,  F03D7/0288 ,  F05B2240/912 ,  F05B2270/17 ,  F05B2270/31 ,  F05B2270/33 ,  F05B2270/804 ,  F05B2270/808 ,  F05B2270/821 ,  Y02E10/721 ,  Y02E10/722 ,  Y02E10/723 ,  Y02E10/728

公开(公告)号：EP2643663B1

公开(公告)日：2015-03-04

申请号：EP11790557.0

申请日：2011-11-23

Applicant: Vestas Wind Systems A/S

Inventor： GLAVIND, Lars ,  HJORT, Thomas ,  OLESEN, Ib Svend

IPC: F03D9/00 ,  G01J1/04 ,  F03D11/00 ,  G01M5/00 ,  G01D5/353 ,  G01M11/08 ,  H02K9/24 ,  H02K11/00

CPC classification number: G01J1/0425 ,  F03D9/25 ,  F03D17/00 ,  F03D80/00 ,  G01D5/35303 ,  G01D5/35316 ,  G01D5/35345 ,  G01M5/0016 ,  G01M5/0033 ,  G01M5/0091 ,  G01M11/083 ,  H02K9/24 ,  H02K11/25 ,  Y02E10/725

Abstract: A sensor system for measuring an operating parameter of a wind turbine component is described. The fiber optic sensor system comprises a light source for outputting light in a predetermined range of wavelengths, and an optical fiber comprising a long Fiber Bragg Grating, extending continuously over a length of the optical fiber to provide a continuous measurement region in the optical fiber. The optical fiber is coupled to the wind turbine component such that the continuous measurement region is located at a region of the wind turbine component to be sensed, and such that the grating period at each location in the continuous measurement period is dependent upon the value of the operating parameter at that location. A light detector receives light from the optical fiber, and provides an output signal to the controller indicating the intensity of the received light; based on the detected light, a value for the operating parameter is determined.

公开(公告)号：EP2676113A1

公开(公告)日：2013-12-25

申请号：EP12704502.9

申请日：2012-02-14

Applicant: Vestas Wind Systems A/S

Inventor： GLAVIND, Lars ,  OLESEN, Ib Svend ,  HANCOCK, Mark ,  CRAVEN, Richard

IPC: G01M5/00 ,  F03D7/00 ,  F03D11/00 ,  G01M11/08

CPC classification number: G01N21/8806 ,  F03D17/00 ,  G01M5/0016 ,  G01M5/0033 ,  G01M5/0091 ,  G01M11/0278 ,  G01M11/083 ,  G01M11/085 ,  G01N21/64 ,  G01N21/6447 ,  Y02E10/722

Abstract: A system and method of detecting damage to a wind turbine blade uses one or more fluorescent optical fibers comprising a fluorescent material having an excitation wavelength that is selected such that the material fluoresces upon exposure to ambient radiation at the wind turbine blade, wherein the one or more optical fibers are operatively mounted within the wind turbine blade such that upon damage to the wind turbine blade at least a part of the optical fiber is exposed at the surface of the blade causing the optical fiber to fluoresce; a light detector for receiving a light signal from one or from both ends of the one or more optical fibers upon excitation of the fluorescent material and outputting a signal based on the light signal; and a controller coupled to the light detector to receive the signal.