Title:
WIND TURBINE SYSTEM FOR DETECTION OF BLADE ICING
Document Type and Number:
WIPO Patent Application WO/2012/000509
Kind Code:
A3
Abstract:
The invention relates to a method for detecting icing and other loadings on blades of wind turbines. Advantageously, the method utilizes existing wind turbine actuators, for example pitch actuators, far excitation of blade vibrations. Vibration sensors on the blade such as strain sensors or accelerometers measure the blade vibrations excited in response to the actively excised vibrations. By comparing the measured response with previously obtained reference responses, it is possible to determine if blade icing is present.
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Inventors:
LAURITSEN STEEN M (DK)
MIRANDA ERIK CARL LEHNSKOV (DK)
MIRANDA ERIK CARL LEHNSKOV (DK)
Application Number:
PCT/DK2011/050244
Publication Date:
April 26, 2012
Filing Date:
June 29, 2011
Export Citation:
Assignee:
VESTAS WIND SYS AS (DK)
LAURITSEN STEEN M (DK)
MIRANDA ERIK CARL LEHNSKOV (DK)
LAURITSEN STEEN M (DK)
MIRANDA ERIK CARL LEHNSKOV (DK)
International Classes:
F03D7/04; F03D7/02
Domestic Patent References:
| WO2006012827A1 | 2006-02-09 |
Foreign References:
| EP2112375A2 | 2009-10-28 | |||
| EP2075462A2 | 2009-07-01 | |||
| US20100158688A1 | 2010-06-24 |
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