FR2872867A1 - Aerogenerator for generating energy from wind force, has rotor comprising blades which are quasi-parallel to rotation axle that is horizontal and in direction of winds, where blades have semi-tapered shape - Google Patents

Aerogenerator for generating energy from wind force, has rotor comprising blades which are quasi-parallel to rotation axle that is horizontal and in direction of winds, where blades have semi-tapered shape Download PDF

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Publication number
FR2872867A1
FR2872867A1 FR0409707A FR0409707A FR2872867A1 FR 2872867 A1 FR2872867 A1 FR 2872867A1 FR 0409707 A FR0409707 A FR 0409707A FR 0409707 A FR0409707 A FR 0409707A FR 2872867 A1 FR2872867 A1 FR 2872867A1
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France
Prior art keywords
blades
rotor
axis
semi
rotation
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Granted
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FR0409707A
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French (fr)
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FR2872867B1 (en
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Nordine Haddjeri
Hocine Majid Hayane
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Idsud Energie 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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • 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
    • F05B2210/00—Working fluid
    • F05B2210/16—Air or water being indistinctly used as working fluid, i.e. the machine can work equally with air or water without any modification
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/30—Wind power
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (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)
  • Wind Motors (AREA)

Abstract

The aerogenerator has a nacelle (3), a movable structure (4), a mast (5) and a rotor (6). The rotor has blades (1) that are quasi-parallel to a rotation axle (2) which is horizontal and in direction of wind. The mast carries the rotor/nacelle/movable structure assembly, and the blades have a semi-tapered shape. Each blade has base with diameter equal to 0.25 times of its height and apex with diameter equal to 0.083 times of the height.

Description

1 28728671 2872867

La présente invention concerne un aérogénérateur à axe horizontal.  The present invention relates to an aerogenerator with a horizontal axis.

Traditionnellement les aérogénérateurs sont dotés d'un rotor constitué de pales perpendiculaires à l'axe de transmission. Ces pales génèrent des contraintes qui sont: - arrêt de leur fonctionnement à une vitesse de vent importante, - modification du paysage dûe à leur structure imposante, perturbation de l'environnement, - nuisances sonores.  Traditionally, wind turbines have a rotor consisting of blades perpendicular to the transmission axis. These blades generate constraints which are: - stop of their operation with a high wind speed, - modification of the landscape due to their imposing structure, disturbance of the environment, - noise nuisances.

Le dispositif selon l'invention permet de remédier à ces inconvénients ou réduire ces contraintes: - fonctionnement par grand vent et démarrage à faible vitesse de vent - limitation de l'impact visuel sur le paysage limitation des perturbations sur l'environnement - absence de nuisance sonore.  The device according to the invention makes it possible to remedy these drawbacks or to reduce these constraints: - operation by wind and start at low wind speed - limitation of the visual impact on the landscape limitation of disturbances on the environment - absence of nuisance sound.

Le dispositif selon l'invention transforme l'énergie cinétique du vent en énergie mécanique. Ainsi, l'énergie mécanique du rotor peut être transformée en énergie électrique (couplage avec un générateur électrique) . L'invention, peut être exploitée en tant que turbine hydraulique en immergeant le rotor dans une masse d'eau en mouvement. Elle peut être exploitée sur un principe de marée motrice ou centrale hydraulique. Les pales du rotor peuvent être composées en tout type de matériaux (métaux, composite, bois...).  The device according to the invention transforms the kinetic energy of the wind into mechanical energy. Thus, the mechanical energy of the rotor can be converted into electrical energy (coupling with an electric generator). The invention can be exploited as a hydraulic turbine by immersing the rotor in a moving body of water. It can be exploited on a principle of driving tide or hydraulic power station. The rotor blades can be composed in any type of materials (metals, composite, wood ...).

Le descriptif et des planchent présentent et illustrent l'invention.  The description and planchers present and illustrate the invention.

L'invention est un aérogénérateur à axe horizontal se positionnant dans le sens du vent et qui est constitué d'un rotor doté de pales semitronconiques vrillées, quasi-parallèles à l'axe de rotation; d'une nacelle; d'une structure mobile et d'un mât portant l'ensemble 25 rotor/nacelle/structure mobile.  The invention is an aerogenerator with a horizontal axis positioned in the direction of the wind and which consists of a rotor with twisted semi-conical blades, almost parallel to the axis of rotation; a nacelle; a movable structure and a mast carrying the rotor / nacelle / movable structure.

2. 2872867 Le rotor peut être constitué de deux, trois ou quatre pales et assemblées sur un arbre de transmission ou axe de rotation. (planches 1,2, 3,4).  2. 2872867 The rotor may consist of two, three or four blades and assembled on a transmission shaft or axis of rotation. (boards 1,2,3,4).

Ce paragraphe décrit la forme et la configuration dans l'espace de la pale (planche 6). La forme de la pale de l'invention est semi-tronconique. (planches 1,2,3,4,5,6,7) L'expression du rapport des dimensions de la pale est la suivante: Pour une hauteur H donné du tronc de cône: -Le diamètre de la base: Dl = 0,25 x H -Le diamètre du sommet: D2 = 0,083 x H Considérons cette pale disposée dans l'espace par rapport au repère (x,y,z)-(planche 5, 6).  This paragraph describes the shape and configuration in the space of the blade (plate 6). The shape of the blade of the invention is semi-frustoconical. (boards 1,2,3,4,5,6,7) The expression of the ratio of the dimensions of the blade is the following one: For a given height H of the truncated cone: -The diameter of the base: Dl = 0 , 25 x H -The diameter of the vertex: D2 = 0.083 x H Consider this blade arranged in space with respect to the reference (x, y, z) - (plate 5, 6).

Le sommet (côté le plus petit du semi-tronc) B2 de diamètre D2 est orienté autour de l'axe de révolution (y) d'un angle de vrillage 13 compris entre 20 et 30 , et ce par rapport la base (côté le plus grand du semi-tronc) B1 de diamètre Dl.  The vertex (the smallest side of the semi-trunk) B2 of diameter D2 is oriented around the axis of revolution (y) of a twisting angle θ between 20 and 30, and this with respect to the base (side larger of the semi-trunk) B1 of diameter Dl.

Il en résulte une inclinaison de la base B1 d'un angle a= 11 et de la base B2 d'un 15 angle y= 9 et ce dans le plan (x,y).(planche 6) La pale présente une inclinaison d'angle yy (psi) comprise entre 10 et 16 par rapport à l'axe de rotation du rotor. (planche 6) Si nous schématisons cette inclinaison, considérons l'axe de l'arbre de transmission nommé (R). Dans le cas de figure où le rotor est constitué de deux ouquatre pales, ces 20 dernières sont disposées diamétralement opposées sur l'arbre de transmission (ou axe de rotation). (planches 1,3,4).  This results in an inclination of the base B1 by an angle α = 11 and the base B2 by an angle y = 9 in the plane (x, y). (Plate 6) The blade has an inclination of angle yy (psi) between 10 and 16 relative to the axis of rotation of the rotor. (Plate 6) If we schematize this inclination, consider the axis of the transmission shaft named (R). In the case where the rotor consists of two or four blades, these last 20 are arranged diametrically opposite on the transmission shaft (or axis of rotation). (boards 1,3,4).

Dans le cas de figure où le rotor est constitué de trois pales, ces dernières sont orientées avec un angle de 120 les unes par rapport aux autres (planche 2).  In the case where the rotor consists of three blades, the latter are oriented at an angle of 120 relative to each other (plate 2).

La pale est fixée en deux points à l'arbre de transmission. Les fixations sont assurées par bridage sur deux moyeux solidaires de l'arbre de transmission (planche 7). La bride au niveau de la base B I, est fixée directement sur le moyeu.  The blade is fixed at two points to the drive shaft. Fixings are provided by clamping on two hubs secured to the drive shaft (plate 7). The flange at the base B I, is fixed directly on the hub.

La bride au niveau de la base B2, est solidaire mécaniquement du moyeu arrière grâce à un rigidificateur tubulaire.  The flange at the base B2, is mechanically secured to the rear hub through a tubular stiffener.

A l'arrière de chaque pale, (côté sous le vent), se trouve disposé un volet régulateur de vitesse (planche 3). Ce volet assure deux rôles: 1-Il permet de réguler la vitesse de rotation du rotor en variant son angle d'attaque. Angle défini entre le volet et l'axe de rotation du rotor.  At the rear of each blade, (leeward side), is located a speed control flap (plate 3). This component has two roles: 1-It regulates the speed of rotation of the rotor by varying its angle of attack. Angle defined between the shutter and the axis of rotation of the rotor.

Considérons que la vitesse du vent maximale est de (x) m/s. Tant que la vitesse du vent évolue entre 2m/s et (x) m/s, les volets régulateurs de vitesse conservent leur position 10 assurant l'exploitation de l'énergie cinétique du vent en sortie de pale.  Consider that the maximum wind speed is (x) m / s. As long as the wind speed varies between 2m / s and (x) m / s, the speed regulating flaps retain their position 10 ensuring the exploitation of the kinetic energy of the wind at the outlet of the blade.

Une fois que la vitesse du vent est supérieure ou égale à (x) mis, les volets s'orientent de manière à réduire la vitesse de rotation du rotor.  Once the wind speed is greater than or equal to (x) set, the flaps are oriented to reduce the rotational speed of the rotor.

Au plus le vent souffle fort, au plus le volet réduit son angle d'inclinaison par rapport à la direction du vent.  The stronger the wind, the more the shutter reduces its angle of inclination with respect to the direction of the wind.

1 5 2-Il assure un rôle de pale secondaire, destiné à exploiter l'énergie cinétique du vent en sortie de pale. L'ensemble rotor est supporté par deux paliers à chaque extrémité de l'arbre de transmission (planche 2 et 3).  1 5 2-It acts as a secondary blade, intended to exploit the kinetic energy of the wind at the blade outlet. The rotor assembly is supported by two bearings at each end of the drive shaft (boards 2 and 3).

Ces paliers sont fixés mécaniquement sur une structure de supportage mobile en forme de U . La structure de supportage mobile est disposée sur un mât.  These bearings are mechanically fixed on a U-shaped mobile support structure. The mobile support structure is arranged on a mast.

Un système d'orientation de l'ensemble structure de supportage/rotor est disposé au sommetd'un mât.  An orientation system of the support structure / rotor assembly is disposed at the top of a mast.

La base du mât est dotée d'un socle fixé sur un massif en béton ferraillé.  The base of the mast is equipped with a base fixed on a massive concrete scrap.

2872867 42872867 4

Claims (9)

RevendicationClaim 1) Dispositif pour générer de l'énergie grâce à la force du vent caractérisé en ce qui constitue un aérogénérateur formé d'une nacelle (3), d'une structure mobile (4), d'un mat (5) (portant l'ensemble de l'aérogénérateur) et d'un rotor (6) dont les pales (1) sont quasi parallèles à l'axe de rotation (2). L'axe de rotation (2) est horizontal et dans le sens du vent.  1) Device for generating energy by virtue of the force of the wind, characterized in that it constitutes an aerogenerator formed of a nacelle (3), a mobile structure (4), a mat (5) (carrying the assembly of the aerogenerator) and a rotor (6) whose blades (1) are almost parallel to the axis of rotation (2). The axis of rotation (2) is horizontal and in the direction of the wind. 2) Dispositif selon la revendication 1 caractérisé en ce que les pales (1) du rotor (6) sont de forme semi-tronconiques.  2) Device according to claim 1 characterized in that the blades (1) of the rotor (6) are of semi-frustoconical shape. 3) Dispositif selon la revendication 1 caractérisé en ce que le rotor (6) peut être doté de deux, trois ou quatre pales (1).  3) Device according to claim 1 characterized in that the rotor (6) can be provided with two, three or four blades (1). 4) Dispositif selon la revendication 1 ou la revendication 2 caractérisé en ce que la forme semi-tronconique des pales est telle que, pour une hauteur H donnée du tronc de cône, la base a un diamètre égal à 0,25 fois la hauteur, et le sommet a un diamètre égal à 0,083 fois la hauteur.  4) Device according to claim 1 or claim 2 characterized in that the semi-frustoconical shape of the blades is such that, for a given height H of the truncated cone, the base has a diameter equal to 0.25 times the height, and the apex has a diameter equal to 0.083 times the height. 5) Dispositif selon la revendication 2 ou la revendication 3 caractérisé en ce que les pales (1) présentent une inclinaison d'angle comprise entre 10 et 16 par rapport à l'axe de 15 rotation du rotor (6).  5) Device according to claim 2 or claim 3 characterized in that the blades (1) have an inclination angle of between 10 and 16 relative to the axis of rotation of the rotor (6). (6) Dispositif selon la revendication 2 ou la revendication 3 caractérisé en ce que les pales (1) sont fixées autour de l'axe de rotation (2) de manière diamétralement opposée pour les rotors (6) à deux ou quatre pales (1). Pour les rotors (6) de trois pales, ces dernières sont fixées et orientées autour de l'axe (2) avec un angle de 120 les unes par rapport aux autres (1).  (6) Device according to claim 2 or claim 3 characterized in that the blades (1) are fixed around the axis of rotation (2) diametrically opposite for the rotors (6) with two or four blades (1). ). For the rotors (6) of three blades, the latter are fixed and oriented around the axis (2) at an angle of 120 relative to each other (1). 7) Dispositif selon la revendication 3 caractérisé en ce que les pales semi-tronconiques sont orientées autour de l'axe de rotation avec un angle de vrillage.  7) Device according to claim 3 characterized in that the semi-frustoconical blades are oriented around the axis of rotation with a twisting angle. 8) Dispositif selon la revendication 1 caractérisé en ce que l'ensemble de l'aérogénérateur est fixé par une structure de supportage mobile (4).  8) Device according to claim 1 characterized in that the assembly of the wind turbine is fixed by a movable support structure (4). 9) Dispositif selon la revendication 8 caractérisé en ce que la structure de supportage mobile (4) est soutenue par un mât (5) pivotant et servant de système d' orientation.  9) Device according to claim 8 characterized in that the mobile support structure (4) is supported by a mast (5) pivoting and serving as an orientation system.
FR0409707A 2004-09-14 2004-09-14 AERO-TURBO-GENERATOR Expired - Fee Related FR2872867B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007080234A1 (en) * 2006-01-12 2007-07-19 Nheolis (Sarl) Horizontal-axis wind generator
FR2922273A1 (en) * 2007-10-12 2009-04-17 Nheolis Sarl Rotor for electric power generation device, has semi-conical blades obliquely oriented with respect to rotational axis, and modification unit modifying obliquity of blades, where blades are connected to shaft by connections
FR2930300A1 (en) * 2008-04-22 2009-10-23 Nheolis Sarl BLADE FOR APPARATUS FOR GENERATING ENERGY FROM A FLUID FLOW THAT CAN BE AIR OR WATER
WO2010109081A1 (en) * 2009-03-26 2010-09-30 Nheolis (Sarl) Rotor for a power generator, in particular for wind turbines

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924966A (en) * 1974-09-25 1975-12-09 Robert J Taminini Wind driven power generator
FR2283331A1 (en) * 1974-09-02 1976-03-26 Hainault Paul Wind motor with helical blades - has circumferential strip welded on each blade edge
US4159191A (en) * 1977-08-01 1979-06-26 Graybill Clinton L Fluid rotor
FR2791094A1 (en) * 1999-03-18 2000-09-22 Louis Broussin Windmill and power generator has rotor in form of two offset half cones and vane to direct rotor into wind
FR2826065A1 (en) * 2001-06-13 2002-12-20 Pierre Henri Gallan Wind turbine with horizontal concave blades for electrical desalination pump, comprises two horizontal blades set at angle to each other on common axis in support with fixed wind vane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2283331A1 (en) * 1974-09-02 1976-03-26 Hainault Paul Wind motor with helical blades - has circumferential strip welded on each blade edge
US3924966A (en) * 1974-09-25 1975-12-09 Robert J Taminini Wind driven power generator
US4159191A (en) * 1977-08-01 1979-06-26 Graybill Clinton L Fluid rotor
FR2791094A1 (en) * 1999-03-18 2000-09-22 Louis Broussin Windmill and power generator has rotor in form of two offset half cones and vane to direct rotor into wind
FR2826065A1 (en) * 2001-06-13 2002-12-20 Pierre Henri Gallan Wind turbine with horizontal concave blades for electrical desalination pump, comprises two horizontal blades set at angle to each other on common axis in support with fixed wind vane

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007080234A1 (en) * 2006-01-12 2007-07-19 Nheolis (Sarl) Horizontal-axis wind generator
FR2922273A1 (en) * 2007-10-12 2009-04-17 Nheolis Sarl Rotor for electric power generation device, has semi-conical blades obliquely oriented with respect to rotational axis, and modification unit modifying obliquity of blades, where blades are connected to shaft by connections
FR2930300A1 (en) * 2008-04-22 2009-10-23 Nheolis Sarl BLADE FOR APPARATUS FOR GENERATING ENERGY FROM A FLUID FLOW THAT CAN BE AIR OR WATER
WO2009133318A2 (en) * 2008-04-22 2009-11-05 Nheolis (Sarl) Blade for a device for generating energy from a fluid flow
WO2009133318A3 (en) * 2008-04-22 2010-01-07 Nheolis (Sarl) Blade for a device for generating energy from a fluid flow
US20110070094A1 (en) * 2008-04-22 2011-03-24 Nheolis (Sarl) Blade for a device for generating energy from a fluid flow
JP2011518287A (en) * 2008-04-22 2011-06-23 ネオリス（サール） Apparatus blade for generating energy from fluid and apparatus comprising a rotor using the blade
CN102016295B (en) * 2008-04-22 2013-07-31 耐欧立斯有限公司 Blade for a device for generating energy from a fluid flow
US8562299B2 (en) 2008-04-22 2013-10-22 Nheolis (Sarl) Blade for a device for generating energy from a fluid flow
WO2010109081A1 (en) * 2009-03-26 2010-09-30 Nheolis (Sarl) Rotor for a power generator, in particular for wind turbines
US20120080885A1 (en) * 2009-03-26 2012-04-05 NHEOILS (Societie par Actions (Simplifee) Rotor for a power generator, in particular for wind turbines
JP2012521515A (en) * 2009-03-26 2012-09-13 ネオリス（ソシエテ パー アクションズ シンプリフィー） Rotor for power generators, especially wind turbines

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