WIND TURBINE HAVING A LOAD-MINIMIZING DEVICE

WIPO Patent Application WO/2011/015180

A3

The invention relates to a wind turbine (10), comprising a tower (20), an energy-conversion unit arranged on the tower (20), a rotor, which is connected to the energy-conversion unit and has two rotor blades (30a, 30b) fastened to a hub (40), a measuring means arranged in the hub (40) for measuring the mechanical deformation of the hub (40), and an individual blade controller for setting the blade pitch angle of the rotor blades (30a, 30b), characterized in that the measuring means (50a, 60a, 50b, 60b) is arranged so as to detect the distance between two defined locations opposite each other in the hub (40), and the individual blade controller is arranged so as to set the blade pitch angle of both rotor blades on the basis of the distance measured between the defined locations or the distance variation measured between the defined locations, in such a way that a minimum rotor pitch torque MYR results.

JPS5891377	WIND POWER GENERATING SYSTEM
WO/2008/049426	A METHOD FOR DAMPING TOWER OSCILLATIONS, AN ACTIVE STALL CONTROLLED WIND TURBINE AND USE HEREOF
JP2007107409	WIND POWER GENERATION DEVICE

SIEGFRIEDSEN SOENKE (DE)

PCT/DE2010/000887

September 15, 2011

July 29, 2010

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AERODYN ENG GMBH (DE)
SIEGFRIEDSEN SOENKE (DE)

F03D7/02

WO2006024146A1

2006-03-09

US20090129924A1	2009-05-21
EP1243790A1	2002-09-25
DE102006002708A1	2007-07-26
DE102007059165A1	2009-05-28

BOSSANYI E A: "INDIVIDUAL BLADE PITCH CONTROL FOR LOAD REDUCTION", WIND ENERGY, WILEY, CHICHESTER, GB, vol. 6, 8 October 2002 (2002-10-08), pages 119 - 128, XP008031928, ISSN: 1099-1824, DOI: DOI:10.1002/WE.76

LOBEMEIER, Martin, Landolf (Niemannsweg 133, Kiel, DE)

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