DK38097A - Method and apparatus for attenuating vibrations in rotor blades on wind turbines - Google Patents

Method and apparatus for attenuating vibrations in rotor blades on wind turbines

Info

Publication number
DK38097A
DK38097A DK38097A DK38097A DK38097A DK 38097 A DK38097 A DK 38097A DK 38097 A DK38097 A DK 38097A DK 38097 A DK38097 A DK 38097A DK 38097 A DK38097 A DK 38097A
Authority
DK
Denmark
Prior art keywords
windmill
wings
vibration
rotor
rotor blades
Prior art date
Application number
DK38097A
Other languages
Danish (da)
Other versions
DK173029B1 (en
Inventor
Hansen Niels Emil Bjerre
Original Assignee
Dancontrol Eng As
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dancontrol Eng As filed Critical Dancontrol Eng As
Priority to DK199700380A priority Critical patent/DK173029B1/en
Publication of DK38097A publication Critical patent/DK38097A/en
Application granted granted Critical
Publication of DK173029B1 publication Critical patent/DK173029B1/en

Links

Classifications

    • Y02E10/722—

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Wind Motors (AREA)

Abstract

This invention concerns a method and an apparatus for monitoring of vibrational phenomena in the wings 2 of a windmill 1 and to protect against damaging consequences thereof by intervening in the phenomenon, wherein the amplitude of a vibration signal, which is dependent on the vibration of the wings, is detected in the machine housing 8 of the windmill 1 by applying a vibration sensor 9 as far away from the rotor 2 of the windmill as possible and with the sensing axis of the sensors 9 oriented in the plane which gives the greatest transmissivity in the particular combination of machine and wing type for the edgewise vibrational frequency of the wings 2, the vibration signal is compared with a previously determined limit value, and the speed of revolution of the rotor 2 of the windmill is acted upon when the limit value is exceeded. <IMAGE>
DK199700380A 1997-04-04 1997-04-04 Method and apparatus for dampening of vibrations in rotor blades of windmills DK173029B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK199700380A DK173029B1 (en) 1997-04-04 1997-04-04 Method and apparatus for dampening of vibrations in rotor blades of windmills

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK199700380A DK173029B1 (en) 1997-04-04 1997-04-04 Method and apparatus for dampening of vibrations in rotor blades of windmills
DK38097 1997-04-04

Publications (2)

Publication Number Publication Date
DK38097A true DK38097A (en) 1998-11-27
DK173029B1 DK173029B1 (en) 1999-11-22

Family

ID=8092847

Family Applications (1)

Application Number Title Priority Date Filing Date
DK199700380A DK173029B1 (en) 1997-04-04 1997-04-04 Method and apparatus for dampening of vibrations in rotor blades of windmills

Country Status (1)

Country Link
DK (1) DK173029B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296048A (en) * 1980-04-01 1981-10-20 Sim William J Support bracket for distribution panel for cooling towers and the like

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2232063B1 (en) 2007-11-30 2017-09-27 Vestas Wind Systems A/S A wind turbine, a method for controlling a wind turbine and use thereof
WO2009068036A2 (en) 2007-11-30 2009-06-04 Vestas Wind Systems A/S A wind turbine, a method for controlling a wind turbine and use thereof
US10738762B2 (en) 2016-04-08 2020-08-11 Vestas Wind Systems A/S Method and system for controlling a wind turbine to manage edgewise blade vibrations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296048A (en) * 1980-04-01 1981-10-20 Sim William J Support bracket for distribution panel for cooling towers and the like

Also Published As

Publication number Publication date
DK173029B1 (en) 1999-11-22

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Legal Events

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PUG Patent revoked