WO2019038710A1 - Agencement de capteur pour détecter des moments de flexion dans un composant allongé; composant allongé; système de capteur et éolienne - Google Patents

Agencement de capteur pour détecter des moments de flexion dans un composant allongé; composant allongé; système de capteur et éolienne Download PDF

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Publication number
WO2019038710A1
WO2019038710A1 PCT/IB2018/056393 IB2018056393W WO2019038710A1 WO 2019038710 A1 WO2019038710 A1 WO 2019038710A1 IB 2018056393 W IB2018056393 W IB 2018056393W WO 2019038710 A1 WO2019038710 A1 WO 2019038710A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
elongate component
sensor arrangement
measurement rod
blade
Prior art date
Application number
PCT/IB2018/056393
Other languages
English (en)
Inventor
Joerg Winkelmann
Original Assignee
Suzlon Energy Ltd.
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 Suzlon Energy Ltd. filed Critical Suzlon Energy Ltd.
Priority to DE112018004704.0T priority Critical patent/DE112018004704B4/de
Publication of WO2019038710A1 publication Critical patent/WO2019038710A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
    • G01B21/24—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes for testing alignment of axes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0011—Arrangements for eliminating or compensation of measuring errors due to temperature or weight
    • G01B5/0014—Arrangements for eliminating or compensation of measuring errors due to temperature or weight due to temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0016—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of aircraft wings or blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/40—Movement of component
    • F05B2250/41—Movement of component with one degree of freedom
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/17—Purpose of the control system to avoid excessive deflection of the blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/80—Devices generating input signals, e.g. transducers, sensors, cameras or strain gauges
    • F05B2270/821—Displacement measuring means, e.g. inductive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/023—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring distance between sensor and object
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge

Definitions

  • the invention relates to techniques for sensing bending moments in components, and more particularly to an improved sensor arrangement for sensing bending moments in an elongate component (such as a blade of a wind turbine), and to an elongate component, sensor system and wind turbine.
  • an elongate component such as a blade of a wind turbine
  • knowledge of the blade bending moments is sig ⁇ nificant as regards the following design aspects of a wind turbine: (i) provision of a substantial input for smart con ⁇ trol purposes, facilitating equipment weight reduction; (ii) direct estimation/valuation of the wind field in front of the rotor (wind speed, wind shear vertical & horizontal); (iii) rotor blade-pitch alignment; and (iv) count of cycles for lifespan purposes for the rotor blades and rotor shaft.
  • Another known technique involves the use of laser or light beams as well as transmitters, receivers and, if applicable, mirrors in the blade in order to detect the movement of the blade tip (of an outer part of the blade) relative to the blade root.
  • these techniques suffer similar drawbacks to the aforementioned fibre-optic based methods.
  • WO2015/014366 discloses a wind turbine comprising at least one rotor blade and a load sensor located at a root end of the rotor blade.
  • An optical accelerometer is located inside the rotor blade near a tip thereof, and a controller is con ⁇ nected to the accelerometer via one or more optical fibres that extend along the length of the rotor blade and is con ⁇ figured to control the wind turbine based upon the measured load and the measured acceleration to maintain the load on the rotor blade below a predetermined threshold level.
  • EP2898216B1 discloses a method for monitoring the state of a rotor blade of a wind turbine, comprising: measuring an acceleration of the rotor blade with a first signal by means of a fibre-optic acceleration sensor, wherein the acceleration is measured at a first radial position at a predetermined distance from the rotor blade root in at least one direction comprising a first directional component orthogonal to the axis of the rotor blade; measuring a strain of the rotor blade with a second signal by means of a fibre-optic strain sensor, wherein the strain is measured at a second radial po ⁇ sition disposed in the area of the first radial position to the rotor blade root, in order to measure bending moments in two, typically orthogonal, directions; determining a first positional change by integrating the acceleration over time; determining a first value corresponding to the rotor blade stiffness by means of calculation on the basis of the first positional change and the strain; and determining the rotor blade state from
  • the first radial position may be located approximately at half the blade radius or in between half the blade radius and a rotor blade tip and/or the second radial position may be located at a distance of 5 meters or less from the blade root. Further techniques based on acceleration signals are disclosed in DE102010032120A1.
  • the present invention seeks to overcome the aforementioned problems and provide an improved sensor arrangement for sens ⁇ ing bending moments in an elongate component, a sensor system and wind turbine.
  • a sensor arrangement for sensing bending moments in an elongate component, for example a blade of a wind turbine, the sensor arrangement comprising: a measurement rod extending at least a predetermined distance parallel to the direction of elonga ⁇ tion of the elongate component and transverse to the axis of bending; a fixing element attached to one of a proximal end and a distal end of the measurement rod, the fixing element being configured for fixedly attaching the measurement rod to a surface of the elongate component; a support element at ⁇ tached to the other of the proximal end and the distal end of the measurement rod, the support element being configured to be fixedly attached to the surface and for supporting the measurement rod such as to allow axial displacement thereof; and a displacement sensor, disposed adjacent and spaced apart from the proximal end of the measurement rod, the sensor be ⁇ ing configured for outputting a signal indicative of the axi ⁇ al displacement of the measurement rod;
  • the predetermined distance lies in the range 10- 200cm, more preferably 20-lOOcm, and more preferably 20-50cm.
  • the measurement rod has a diameter that lies in the range 1-10mm, more preferably 2-8mm, and more preferably 4-6mm.
  • the distance lies in the range 2-30%, more pref ⁇ erably 5-20%, and more preferably 10-15% of the length of the elongate component.
  • the fixing element is configured to support an axis of the measurement rod at a predetermined spacing from the surface.
  • the predetermined spacing lies in the range 1-lOx, more preferably 2-5x, and more preferably 2- 3x the diameter of the measurement rod.
  • the support element includes a bearing or bearing surface configured to permit sliding movement of the measure ⁇ ment rod relative thereto.
  • a metal tip is disposed at the proximal end of the measurement rod.
  • the displacement sen ⁇ sor comprises an inductive sensor.
  • the displacement sensor comprises a capacitive sensor, a magnetic sensor or an optical sensor.
  • the displacement sensor is configured to sense axial displacements of the measurement rod lying in the range of ⁇ 10 mm.
  • the displacement sensor is configured to sense axial displacements of the measurement rod with a resolution of 0.1%.
  • the measurement rod is made of glass fibre or carbon .
  • an elongate component for example a blade of a wind tur ⁇ bine, the elongate component having mounted thereon a sensor arrangement according to any one of claims 1 to 13 of the ap ⁇ pended claims.
  • a plurality of the sensor arrangements are mount ⁇ ed on the elongate component, the displacement sensor of each sensor arrangement outputting a respective signal indicative of displacement sensed by that sensor arrangement.
  • the sensor arrangements are mounted on the sur ⁇ face spaced apart around the cross-sectional periphery of the measurement rod.
  • the sensor arrangements are mounted on the sur ⁇ face equally angularly spaced around the cross-sectional pe ⁇ riphery of the measurement rod.
  • three sensor arrangements are mounted on the surface. Such sensors are preferably attached on the cir ⁇ cumference of the blade root to measure or calculate the two orthogonal blade root bending moments and the acting axial force .
  • the sensor arrangements are mounted on the surface.
  • the sensor arrangements are ar ⁇ ranged as two pairs of diametrically opposing sensor arrange ⁇ ments. If four sensors, with two opposite each other, are im ⁇ plemented so as to be interconnected with signal summing, the two bending moments can be measured directly, wherein the ax ⁇ ial force influence is directly compensated.
  • the elongate component is hollow and the surface is an internal surface.
  • the sensor arrangements are mounted on a portion of the surface at one end of the elongate component.
  • the elongate component is a blade for a wind tur ⁇ bine.
  • the portion of the surface is at or adja ⁇ cent the root end of the blade.
  • the elongate component is formed of glass fibre or carbon.
  • a sensor system for sensing bending moments in an elongate component, for example a blade of a wind turbine, the sensor system comprising: a plurality of sensor arrangements accord ⁇ ing to any one of claims 1 to 13 of the appended claims or an elongate component according to any of claims 14 to 25 of the appended claims; and processing circuitry, coupled to receive the signal output by the displacement sensor of each sensor arrangement; wherein the processing circuitry is configured to determine, based on the signals indicative of the axial displacements of the measurement rods, the bending moment in an elongate component.
  • each displacement sensor is coupled to the pro ⁇ cessing circuitry via an overvoltage protection circuit.
  • the processing circuitry is coupled to one or more pitch sensors, each pitch sensor being configured to supply to the processing circuitry a signal indicative of a pitch angle of a respective elongate component, wherein the processing circuitry is configured to determine the bending moment, based on the signals indicative of the axial dis ⁇ placements and of the pitch angles.
  • a wind turbine comprising: a plurality of sensor arrange- merits according to any one of claims 1 to 13 of the appended claims, an elongate component according to any of claims 14 to 25 of the appended claims or a sensor system according to any one of claims 26 to 28 of the appended claims.
  • An advantage of the invention is that robustness and/or reli ⁇ ability are significantly improved though the use of posi ⁇ tion/displacement sensors.
  • a further advantage is that no electric components are posi ⁇ tioned in the blade at a distance from the blade root, there ⁇ by lowering the risk of destruction by lightning.
  • a further advantage of the invention is that, in embodiments, there is direct compensation for the influence of tempera ⁇ ture .
  • a further advantage is that, with the devices used in embodi ⁇ ments, there is the possibility of easy retrofit ⁇ ting/refitting, or repair.
  • a further advantage of the invention is that, compared to known solutions, costs are significantly reduced, e.g. by two thirds in certain embodiments.
  • a further advantage is that the detection of the presence of ice on the turbine blade, and the identification of vibration modes and/or influence of wakes from upwind wind turbine gen ⁇ erators (WTGs), is enhanced.
  • Figure 1 shows a known wind turbine with multiple blades
  • Figure 2 shows an axial cross-sectional view of a blade root of a blade of Fig. 1, showing sensor arrangements according to embodiment of the invention
  • Figure 3 shows an enlarged view of detail B of Fig. 2 ;
  • Figure 4 shows an enlarged view of detail A of Fig. 2; and Figure 5 is a transverse cross-sectional view of a blade root of a blade of Fig. 1, in the case of (a) three equally spaced sensor arrangements and (b) two pairs of diametrically op ⁇ posed sensor arrangements.
  • FIG. 1 shows a known wind turbine 1 with multiple blades.
  • the wind turbine 1 includes a tower 3 and a nacelle 2 rotatably mounted on the tower 3.
  • the nacelle 2 comprises a nacelle cover 4 mounted on a main frame (not shown) , which will be discussed in further detail below.
  • a main frame not shown
  • a rotor 7 is arranged, which in turn comprises a hub 5 and at least one rotor blade 6
  • an end portion or blade root 8 of blade 6 is retained in place, e.g. within jacket 9. It is de ⁇ sirable to provide devices for measuring bending moments about the y- and/or z-axis, and/or axial forces (along the x- axis), as described in further detail hereinafter.
  • FIG 2 shows a longitudinal cross-sectional view of a blade root 8 of a blade 6 of Fig. 1, showing sensor arrangements 10 according to an embodiment of the invention.
  • the blade 6 is made of glass fibre.
  • the blade 6 may be made of other materials, such as carbon or carbon composites.
  • Each sensor arrangement 10 is disposed on a surface portion 12 at or near the end 14 of blade 6, i.e. so as to substantially span the length of the blade root 8.
  • the elongation between two points which have a large enough distance between each other is directly measured, thereby keeping the influence of tension-expansion-gradients and bulging effects negligibly small.
  • Each sensor arrangement 10 is constructed as follows.
  • a meas ⁇ urement rod 16 extends along the length of surface portion 12, and therefore substantially spans the length of the blade root 8.
  • Measurement rod 16 is made of the same material as blade 6, i.e. glass fibre (or of other materials, such as carbon or carbon composite, where appropriate) . This serves to ensure “natural” temperature compensation with regard to temperature effects on the blade root 8. It is noted that the temperature distribution in the spatial expansion of a blade root 8 is not even and therefore that the temperature compen ⁇ sation has to be sensor position specific.
  • Figure 3 shows an enlarged view of detail B of Fig. 2.
  • a fix ⁇ ing element 18 is fixedly attached to surface portion 12, e.g. by strong adhesive (not shown) .
  • distal end 20 of measurement rod 16 is in turn fixedly attached to fix ⁇ ing element 18 via a rigid angle bracket 19 that tight ⁇ ly/rigidly grasps measurement rod 16 (which is, e.g., bonded into a recess thereof with the strong adhesive) .
  • a support element 24 is provided, that is fix ⁇ edly attached to surface portion 12, e.g. by strong adhesive.
  • the measurement rod 16 passes through an axial passage (not shown) in support element 24, with clear ⁇ ance, thus enabling axial/longitudinal movement of measure ⁇ ment rod 16 relative to support element 24.
  • bearings, and/or lubricating material such as grease, may be provided between engaging surfaces of the support element 24 and measurement rod 16.
  • a number of further support elements 24', 24'' may be provided (e.g. equally spaced) between fix ⁇ ing element 18 and support element 24.
  • Each sensor arrangement 10 further includes a posi ⁇ tion/displacement sensor 26.
  • a posi ⁇ tion/displacement sensor 26 is mounted on surface portion 12 of blade wall 27.
  • a metal (e.g. steel) tip 28 is pro ⁇ vided on proximal end 22 of measurement rod 16, and the dis ⁇ placement sensor 26 comprises an inductive sensor for sensing position or positional changes.
  • the displacement sensor 26 may alternatively comprise a capacitive sensor, a magnetic sensor or an optical sensor .
  • signals generated by displacement sensors 26 on blade 6 are fed via leads 28 and overvoltage protection unit 30 to first inputs 32 of pro ⁇ cessing circuitry 34.
  • the latter further includes second in- put 36 and third input 38 for receiving signals indicative of movement/change of position from second and third blades (not shown) .
  • the processing circuitry 34 further includes a fourth input 38 configured to receive signal indicative of a pitch angle of the first blade 6 from pitch angle sensor 40.
  • the processing circuitry 34 further includes fifth input 42 and sixth input 44 for receiving signals indicative of move ⁇ ment/change of position from second and third blades (not shown) .
  • the processing circuitry 34 preferably comprises wind turbine generator programmable logic controller (WTG-PLC) circuitry, configured for calculating bending moments in the blade roots 8 (Fig. 1) about the y- and/or z-axis, and/or axial forces (along the x-axis) based on the various position/displacement signals and pitch angle signals, using techniques known in the art .
  • WTG-PLC wind turbine generator programmable logic controller
  • Figure 5(a) is an axial cross-sectional view of a blade root 8, in one embodiment - in the case of three the equally spaced sensor arrangements 10, 10' and 10' ' .
  • the latter are arranged at equal (120 degree) angular spacings around the internal surface 12 of blade root 8. If three such sensors are attached on the circumference of the blade root 8, the two orthogonal blade root bending moments and the acting axi ⁇ al force, as mentioned above, can be measured or calculated.
  • Figure 5 (b) is an axial cross-sectional view of a blade root 8, in another embodiment (corresponding to Fig. 2) - in the case of two pairs of diametrically opposed sensor arrange ⁇ ments 10, 11. If four sensors are so used, with two within a pair opposite each other and interconnected, and signal addi ⁇ tion is employed, the two bending torques can be measured di- rectly, whereby the axial force influence is directly compen ⁇ sated .
  • overvoltage protection unit 32 first input processing circuitry second input third input

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Wind Motors (AREA)

Abstract

L'invention concerne un agencement de capteur pour détecter des moments de flexion dans un composant allongé (par exemple, une pale d'une éolienne). L'agencement de capteur comprend une tige de mesure s'étendant au moins à une distance prédéterminée parallèle à la direction d'allongement du composant allongé et transversale à l'axe de flexion. L'agencement de capteur comprend en outre un élément de fixation fixé à une extrémité distale de la tige de mesure, l'élément de fixation étant configuré pour fixer de manière fixe la tige de mesure à une surface du composant allongé, et un élément de support fixé à une extrémité proximale de la tige de mesure, à l'opposé de l'extrémité distale, l'élément de support étant configuré pour être fixé de manière fixe à la surface et pour supporter la tige de mesure de manière à permettre un déplacement axial de celle-ci. L'agencement de capteur comprend en outre un capteur de placement (par exemple, un capteur inductif), disposé de manière adjacente et espacée de l'extrémité proximale de la tige de mesure, le capteur étant configuré pour émettre un signal indicatif du déplacement axial de (par exemple, une pointe métallique de) la tige de mesure. Les tiges de mesure sont constituées du même matériau (par exemple, fibre de verre) que le composant allongé. De préférence, trois ou quatre des agencements de capteur sont disposés à intervalles angulaires (égales) autour d'une surface périphérique interne de la racine de pale. L'invention concerne également un composant allongé, un système de capteur et une éolienne.
PCT/IB2018/056393 2017-08-24 2018-08-23 Agencement de capteur pour détecter des moments de flexion dans un composant allongé; composant allongé; système de capteur et éolienne WO2019038710A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112018004704.0T DE112018004704B4 (de) 2017-08-24 2018-08-23 Sensoranordnung zur Erfassung von Biegemomenten in einem länglichen Bauteil, längliches Bauteil, Sensorsystem und Windenergieanlage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201721030100 2017-08-24
IN201721030100 2017-08-24

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WO2019038710A1 true WO2019038710A1 (fr) 2019-02-28

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CN111794919A (zh) * 2020-07-13 2020-10-20 三一重能有限公司 风力发电机叶片除冰设备和风力发电机叶片除冰方法
CN113432629A (zh) * 2020-03-23 2021-09-24 株式会社三丰 用于感应位置编码器的发射器和接收器配置
US11898535B2 (en) 2020-06-18 2024-02-13 Lm Wind Power A/S Wind turbine blade measurement system and a method of improving accuracy of a wind turbine blade measurement system

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EP4008993A1 (fr) 2020-12-04 2022-06-08 Wobben Properties GmbH Procédé de mesure de déformation sur un composant d'une éolienne, agencement de mesure de déformation, utilisation de l'agencement et procédé de montage de l'agencement

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EP2037212A1 (fr) * 2007-09-12 2009-03-18 Siemens Aktiengesellschaft Procédé et capteur de détermination de déflection et/ou souche
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WO2015014366A1 (fr) 2013-07-30 2015-02-05 Vestas Wind Systems A/S Procédé et dispositif de fonctionnement de turbine éolienne basés sur des mesures de charge et d'accélération dans l'aube
EP2778602B1 (fr) 2013-03-14 2015-10-14 Siemens Aktiengesellschaft Dispositif pour mesurer la déviation d'une pale d'une éolienne
EP2898216B1 (fr) 2012-09-18 2016-12-07 Technische Universität München Procédé et dispositif permettant de surveiller les états de fonctionnement de pales de rotor

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WO2003029750A1 (fr) * 2001-10-02 2003-04-10 Vestas Wind Systems A/S Dispositif de mesure de la flexion d'un element structurel
EP2037212A1 (fr) * 2007-09-12 2009-03-18 Siemens Aktiengesellschaft Procédé et capteur de détermination de déflection et/ou souche
GB2465790A (en) * 2008-11-28 2010-06-02 Vestas Wind Sys As System to measure load on a wind turbine blade
AU2009340218A1 (en) * 2009-04-24 2010-11-11 Mitsubishi Heavy Industries, Ltd. Load measuring apparatus, method, and program
DE102010032120A1 (de) 2010-07-24 2012-01-26 Robert Bosch Gmbh Verfahren und Vorrichtung zur Bestimmung eines Biegewinkels eines Rotorblattes einer Windkraftanlage
EP2898216B1 (fr) 2012-09-18 2016-12-07 Technische Universität München Procédé et dispositif permettant de surveiller les états de fonctionnement de pales de rotor
EP2778602B1 (fr) 2013-03-14 2015-10-14 Siemens Aktiengesellschaft Dispositif pour mesurer la déviation d'une pale d'une éolienne
WO2015014366A1 (fr) 2013-07-30 2015-02-05 Vestas Wind Systems A/S Procédé et dispositif de fonctionnement de turbine éolienne basés sur des mesures de charge et d'accélération dans l'aube

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Publication number Priority date Publication date Assignee Title
CN113432629A (zh) * 2020-03-23 2021-09-24 株式会社三丰 用于感应位置编码器的发射器和接收器配置
US11898535B2 (en) 2020-06-18 2024-02-13 Lm Wind Power A/S Wind turbine blade measurement system and a method of improving accuracy of a wind turbine blade measurement system
CN111794919A (zh) * 2020-07-13 2020-10-20 三一重能有限公司 风力发电机叶片除冰设备和风力发电机叶片除冰方法

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