EP3807526A1 - Turbine d'eolienne a axe de rotation vertical et pales dynamiques - Google Patents
Turbine d'eolienne a axe de rotation vertical et pales dynamiquesInfo
- Publication number
- EP3807526A1 EP3807526A1 EP19735219.8A EP19735219A EP3807526A1 EP 3807526 A1 EP3807526 A1 EP 3807526A1 EP 19735219 A EP19735219 A EP 19735219A EP 3807526 A1 EP3807526 A1 EP 3807526A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- magnetic
- wind turbine
- pivoting
- wind
- rotation
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
- 230000005291 magnetic effect Effects 0.000 claims abstract description 141
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000033001 locomotion Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 230000004913 activation Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- RLQJEEJISHYWON-UHFFFAOYSA-N flonicamid Chemical compound FC(F)(F)C1=CC=NC=C1C(=O)NCC#N RLQJEEJISHYWON-UHFFFAOYSA-N 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
- F03D3/066—Rotors characterised by their construction elements the wind engaging parts being movable relative to the rotor
- F03D3/067—Cyclic movements
- F03D3/068—Cyclic movements mechanically controlled by the rotor structure
-
- 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
- F03D7/00—Controlling wind motors
- F03D7/06—Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
-
- 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
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/21—Rotors for wind turbines
- F05B2240/211—Rotors for wind turbines with vertical axis
- F05B2240/218—Rotors for wind turbines with vertical axis with horizontally hinged vanes
-
- 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
- F05B2260/00—Function
- F05B2260/30—Retaining components in desired mutual position
- F05B2260/302—Retaining components in desired mutual position by means of magnetic or electromagnetic forces
-
- 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
- F05B2260/00—Function
- F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
- F05B2260/79—Bearing, support or actuation arrangements therefor
-
- 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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Definitions
- the invention relates to a wind turbine with vertical axis of rotation and dynamic blades, comprising a fixed mast defining said vertical axis of rotation, a rotor mounted to rotate freely on said mast, dynamic blades extending radially, coupled to said rotor.
- each dynamic blade comprising a bearing structure delimiting at least one window, and at least one pivoting flap, mounted in said window along a horizontal pivot axis, said pivoting flap being coupled to a magnetic actuation mechanism contactless, arranged to move said pivoting flap in one direction then in the other direction at each half-turn of said wind turbine, between two extreme positions distant by an angle of 90 °, namely an active position in which said pivoting shutter closes said window and offers maximum wind resistance, and a passive position in which said pivoting shutter both opens the window and offers minimal or no resistance to the wind.
- Wind turbines with vertical axis of rotation and dynamic blades offer an attractive alternative to wind turbines with horizontal axis of rotation. They are also used to transform the kinetic energy of the wind into mechanical energy, which is then transformed into electrical energy. They can in some cases be used in a horizontal position. Depending on their configuration, they can have many advantages, such as a small footprint which makes them particularly suitable for being integrated into buildings.
- There are also different technologies for making the blades dynamic that is to say blades with variable geometry depending on their position. relative to the wind direction and to the axis of rotation of the turbine, in order to optimize the performance of such a turbine. Certain technologies use pivoting shutters, controlled by contact actuation mechanisms such as those described in publications US 2012/045333 A1 and KR 101 180 832 B1. Other technologies use contactless actuation mechanisms, and more precisely magnetic mechanisms, allowing frictionless, wear-free, energy-free and completely silent operation. Some examples are described below.
- Publication CN 202673573 U describes a vertical axis wind turbine in which each blade is formed by an umbrella which opens under the effect of the wind and closes in the absence of wind thanks to return means.
- a magnetic blade opening and closing control is added to control the opening and closing of the blades in the event of insufficient wind, in the form of a magnetic disc mounted on a chassis, having a positive polarity on one half of the disc and a negative polarity on the other half of the disc, and cooperating with a magnetic strip mounted on each blade.
- Publication DE 202015100378 U1 describes a vertical axis wind turbine comprising several levels of radial blades, each blade consisting of pivoting flaps with horizontal axis mounted on a support arm, the pivoting of the flaps of each blade being controlled by a half magnetic ring mounted on a shaft and a magnetic disc linked to said support arm.
- Publication CN 106150827 A also describes a vertical axis wind turbine, the radial blades of which are open frames, partially closed or extended outside by a pivoting flap mounted around an axis. vertical at the end of each blade.
- the pivoting of the flaps is controlled by a magnetic annular ring in the shape of a cam mounted on the chassis and a permanent magnet disposed at the end of an articulated lever linked to each flap.
- the present invention aims to propose a new technical solution for contactlessly controlling the pivoting flaps of the dynamic blades of a wind turbine with a vertical axis of rotation, which offers many advantages: a small footprint, making it possible to integrate the wind turbine buildings without distorting the aesthetics, low noise, starting at low wind speeds, with high torque, offering good energy efficiency even in light winds, using reliable technology, having a modular design allowing the design of turbines wind turbines of different powers, and being equipped with safety devices to prevent runaway, or even degradation, of the turbine in the event of strong winds.
- the invention relates to a wind turbine of the kind indicated in the preamble, characterized in that said non-contact magnetic actuation mechanism comprises on the one hand a magnetic head coupled to said fixed mast, coaxial with the axis of vertical rotation, and comprising a circular magnetic track, separated into two circular sectors having opposite magnetic polarities, and on the other hand mobile magnetic elements having the same polarity, each coupled to the pivoting flap of the dynamic blades, and arranged opposite the magnetic stripe so that, during the rotation of the wind turbine, the magnetic attraction or repulsion generated by opposite or identical magnetic polarities between said magnetic head and said movable magnetic elements causes the pivoting flaps to move in one direction then in the other direction at each half-turn of the wind turbine.
- said non-contact magnetic actuation mechanism comprises on the one hand a magnetic head coupled to said fixed mast, coaxial with the axis of vertical rotation, and comprising a circular magnetic track, separated into two circular sectors having opposite magnetic polarities, and on the other hand mobile magnetic elements having the same polarity, each coupled
- the control of the pivoting shutters is contactless and without an intermediate part, controlled, reliable and long-lasting, the pivoting of the shutters is controlled, alternated and limited to a quarter turn, never going beyond the two extreme positions. , and the positions of the pivoting flaps are particularly stable, making it possible to obtain optimum efficiency from the turbine.
- said magnetic head consists of a section of sphere, defined by a radius of curvature whose center coincides with the vertical axis of rotation and by a median plane which passes through said center, said magnetic track coincides at least with said median plane, and said magnetic mobile elements consist of curved plates, defined by at least one radius of curvature, the center of which coincides with the center of said section of sphere, these curved plates being able to pivot d 'A position parallel to a perpendicular position and vice versa with respect to the median plane of said segment of sphere.
- the magnetic strip of said magnetic head can advantageously comprise a central strip and two parallel and coaxial lateral strips, in that the central strip has a magnetic polarity opposite to that of the lateral strips, these magnetic polarities being reversed between the two circular sectors of the magnetic track, and said movable magnetic elements may advantageously comprise at their two opposite ends an identical magnetic polarity, so that they can adopt said parallel position on a first circular sector of the magnetic strip, and said perpendicular position on the second circular sector of the magnetic strip.
- the two circular sectors of said magnetic track are respectively linked by a magnetic transition zone, arranged to cause the change of position of said magnetic moving elements from said position parallel to said perpendicular position as a function of the rotation of the turbine d 'wind turbine.
- said magnetic track and said mobile magnetic elements comprise an assembly of permanent magnets oriented as a function of their magnetic polarity.
- each dynamic blade can comprise at least two pivoting flaps, mounted in the window of said supporting structure along two horizontal and parallel pivot axes, or along a same horizontal pivot axis, said pivoting flaps being coupled to said mechanism. contactless actuation via motion transmission.
- the movement transmission can comprise a system of pinions and racks arranged to couple each movable magnetic element to the pivot axes of the pivoting flaps of each dynamic blade.
- the wind turbine may further include a safety device coupled to said contactless actuation mechanism and arranged to position all the pivoting flaps in the passive position and stop the rotation of said wind turbine in the event of strong winds.
- the pivoting flaps of the dynamic blades may further include a structured surface on an active front face, said structure surface being provided with a plurality of notches) arranged to trap the wind and increase the stability of said pivoting flaps.
- FIG. 1 is a plan view of a wind turbine for domestic use, equipped with a turbine according to the invention, provided with dynamic blades according to a first embodiment
- FIG. 2 is a view in axial section of a wind turbine for industrial use, equipped with a turbine according to the invention, provided with dynamic blades according to a second embodiment,
- FIG. 3 is an axial section view of the mast of the wind turbine turbines in FIGS. 1 and 2,
- FIG. 4 shows schematically and in perspective, the principle of operation of the dynamic blades of the turbine according to the invention as a function of the wind direction
- FIG. 5 schematically represents, in top view, the control of the dynamic blades of the turbine according to the invention as a function of the wind direction
- FIGS. 6A and 6B are respectively a front view and a side view of a pivoting flap of a dynamic blade
- FIGS. 7A and 7B are plan views of the two faces of the magnetic head of the contactless actuation mechanism of the dynamic blades
- FIGS. 8A and 8B are developed in plan of the two faces of the magnetic head of FIGS. 7A and 7B
- FIG. 9 is a bottom view of a mobile magnetic element of the contactless actuation mechanism of the dynamic blades
- FIG. 10 is an exploded view of a movement transmission between the contactless actuation mechanism and the pivoting flaps of a dynamic blade
- FIGS. 1 1 A and 1 1 B are schematic views showing a turbine braking device in the event of strong winds, respectively in passive position and in active position.
- the turbine according to the invention is designed to form a wind turbine, which has a vertical axis of rotation, and dynamic blades, that is to say blades whose geometry varies with each half - turn performed by the turbine to ensure optimal efficiency of the turbine even in light winds (see Figure 4 and 5).
- the wind turbine according to the invention has a modular design, making it possible to adapt its dimensions to both domestic and industrial use, with the aim of producing electrical energy from the kinetic energy of the wind. .
- FIG. 1 represents an exemplary embodiment of a wind turbine 100 for domestic use
- FIG. 2 an exemplary embodiment of a wind turbine 200 for industrial use.
- a wind turbine 1 10, 210 which comprises a fixed mast 1, defining a vertical axis of rotation A, said mast being integral with a base 2 which can be anchored in a surface load-bearing, such as a floor, a floor, a platform, etc. which can be arranged outside, but also inside and for example in the roof of a building or the like.
- They comprise a rotor 3, mounted to rotate freely around the mast 1 by means of bearings R or the like.
- the rotor 3 is integral with several dynamic blades 4, which extend radially, are oriented parallel to the axis A of the mast 1 and arranged to transform the kinetic energy of the wind into mechanical energy driving the rotor 3 in rotation.
- the illustrated wind turbines 110, 210 are shown with six dynamic blades 4, without this example being limiting. In fact, the number of blades, whether it is even or odd, is determined according to the specifications of the turbine.
- the wind turbines 110, 210 are associated with complementary equipment making it possible to transform the mechanical energy of the rotor 3 into electrical energy which can be used directly and / or sent to the electrical distribution network and / or stored in batteries.
- they include an electric generator 5 coupled to the rotor 3, whether or not via a gearbox 6.
- They can also include an orientation device making it possible to modify the angular position of the turbine 1 10, 210 relative to the wind.
- the orientation device consists of a fin 7 secured to a steering axis 8.
- the orientation device comprises a steering module 9, for example electronic , which controls, via an actuator of the servomotor type or the like, the angular displacement of the steering axis 8 as a function of the indication of the wind received from a wind vane (not shown).
- FIG. 3 shows the steering axis 8 mounted to rotate freely inside the mast 1 via bearings R or the like, this steering axis 8 being coupled to a non-contact magnetic actuation mechanism, associated with the dynamic blades 4 , as described with reference to Figures 7 to 9.
- the wind turbine 1 10, 210 may include a safety device for deactivating the dynamic blades 4 in the event of strong winds, as described with reference to Figures 1 1 A and 1 1 B.
- This safety device may include a protection module 10, for example electronic, which controls, via an actuator of the servomotor type or the like, the axial displacement of a braking axis 11 as a function of the indication of the wind received from a wind vane (not shown).
- This braking axis 1 1 is for example mounted free in translation inside the steering axis 8 via bearings R or the like ( Figure 3).
- the actuators controlled for the steering 9 and protection 10 modules can be electrically powered by a micro-alternator 12, coupled to the rotor 3 (FIG. 2).
- Each dynamic blade 4 comprises a bearing structure 40, delimiting at least one window 41, and at least one pivoting flap 42, mounted in the window 41 of the bearing structure 40 and movable along a horizontal pivot axis B between an open position and a closed position.
- the supporting structure 40 of each dynamic blade 4 is rigidly linked to the rotor 3. It has for example the shape of a rectangular parallelogram, the great lengths of which extend radially, and the pivoting flap 42 has a substantially complementary shape. It is advantageously braced by shrouds 43, which extend as well in the vertical plane of each dynamic blade 4, as in horizontal planes making it possible to link each dynamic blade 4 together, and thus to form a mechanically rigid structure.
- the dynamic blades 4 may include one or more pivoting flaps 42, aligned or superimposed, depending on the powers to be achieved.
- the dynamic blades 4 comprise a single pivoting flap 42, while in FIG. 2, they each comprise two aligned series of three pivoting flaps 42 superimposed.
- the dynamic blades 4 are shown each with three pivoting flaps 42 Bunk.
- the pivoting flaps 42 are produced from a rigid panel, of rectangular shape, cut longitudinally into two equal parts by the pivot axis B, and delimited by two opposite faces, parallel or not, including an active front face 42a subjected to the wind and a passive rear face 42b not subjected to the wind, two longitudinal edges 42c, profiled or not, and two transverse edges 42d.
- the active front face 42a preferably consists of a structured surface provided with deep recesses, making it possible to trap the wind and thus increase the stability of the pivoting flaps 42.
- the structured surface is obtained by a multitude of notches 44 in the shape of a right triangle (side view, FIG.
- Each pivoting flap 42 is coupled to a non-contact magnetic actuation mechanism, which is arranged to automatically move the pivoting flap 42 in one direction then in the other direction, with each half-turn of the turbine 1 10, 210, between two extreme positions at an angle of 90 °, namely a closed or active position PA in which the shutter closes the window and offers maximum wind resistance, and an open or passive position PP in which the shutter opens the window and offers minimal or even zero wind resistance.
- This known operating principle is shown diagrammatically in FIGS. 4 and 5, in which the direction of the wind V is represented by a series of parallel arrows. So that the turbine 110, 210 rotates in a counterclockwise direction, as represented by the arrow T in FIG.
- the contactless magnetic actuation mechanism comprises on the one hand a fixed magnetic head 20, coaxial with the vertical axis of rotation A, and provided with a circular magnetic track 21, separated into two circular sectors by the median axis M , corresponding respectively to the active position PA and to the passive position PP of the dynamic blades 4.
- the two circular sectors have for this purpose opposite magnetic polarities.
- the contactless magnetic actuation mechanism also comprises magnetic mobile elements 22, having the same polarity, each coupled to the pivoting flap (s) 42 of the dynamic blades 4.
- These mobile elements 22 are arranged opposite and at a distance from the magnetic track 21, by means of a clearance forming a functional air gap, so that, during the rotation of the turbine 1 10, 210, the magnetic attraction or repulsion generated by the opposite or identical magnetic polarities between the head magnetic 20 and the movable magnetic elements 22 causes the pivoting flaps 42 to move in one direction then in the other direction at each half-turn of the turbine without contact, without friction, without wear, without energy supply and without noise.
- the magnetic head 20 is advantageously integral with the steering axis 8, which is coupled to the fin 7 (FIG. 1) or to the steering module 9 (FIG. 2) and which makes it possible to automatically adjust the angular position of the magnetic head 20 by positioning its median axis M parallel to the direction of the wind V ( Figure 5).
- the magnetic head 20 is made up of a segment of a sphere defined by a radius of center C coinciding with the vertical axis of rotation A and by a median plane P passing through the center C.
- the mobile elements 22 are made up of curved plates, defined by at least one radius of curvature, the center of which coincides with the center C of said segment of sphere.
- the curved plates are defined by two radii of curvature in two perpendicular planes, the centers of which coincide with the center C of said section of sphere.
- the curved plates of the mobile elements 22 can partially cover the sphere section of the magnetic head 20, while respecting a constant operating clearance at all points.
- the mobile elements 22 can then pivot freely from a position parallel to a perpendicular position and vice versa with respect to the median plane P of the sphere section of the magnetic head 20, without colliding with the magnetic head 20, and maintaining an air gap constant functional, having the effect of ensuring constant magnetic permeability at all points.
- each air gap extends over a portion of a sphere which makes it possible to maximize the magnetic effect.
- any other equivalent configuration could be suitable, for example a magnetic head of cylindrical shape and mobile elements in the shape of a disc.
- a cylindrical configuration would be less efficient than the spherical configuration, since it would not guarantee a constant functional air gap at all points of the mobile elements 22, with if necessary a risk of instability of the passive and active positions of the pivoting flaps 42.
- the magnetic track 21 is symmetrical with respect to the median plane P and comprises a central strip 21 a and two lateral strips 21 b, 21 c parallel and coaxial.
- the central strip 21 has mainly a magnetic polarity opposite to that of the side strips 21 b, 21 c, and these magnetic polarities are reversed between the two circular sectors of the magnetic track 21. More precisely and with reference to FIG.
- FIG. 8A which illustrates a first circular sector from 0 ° to 180 ° of the magnetic track 21, the central strip 21 a is formed of south poles and the lateral strips 21 b, 21 c are formed of poles North.
- FIG. 8B which illustrates the second circular sector from 180 ° to 360 ° of the magnetic track 21, the central strip 21 a is formed of north poles and the lateral strips 21 b, 21 c are formed of south poles.
- the magnetic track 21 extends over the entire height of the sphere section, which represents an angular sector of 51 °.
- FIG. 8A which illustrates a first circular sector from 0 ° to 180 ° of the magnetic track 21, the central strip 21 a is formed of south poles and the lateral strips 21 b, 21 c are formed of poles North.
- FIG. 8B which illustrates the second circular sector from 180 ° to 360 ° of the magnetic track 21, the central strip 21 a is formed of north poles and the lateral strips 21 b, 21 c are
- FIG. 9 illustrates an example of mobile magnetic elements 22, the curved plate of which extends longitudinally over an angular sector of 51 °, equal to that of the magnetic track 21, and transversely over an angular sector of 17 ° equal to that of the central strip 21 a of the magnetic strip 21.
- these values are given only by way of nonlimiting example.
- the movable element 22 further comprises at its two opposite ends an identical magnetic polarity, namely two south poles.
- the south poles of the mobile elements 22 being attracted by the north poles provided in the lateral bands 21 b, 21 c then in the central band 21 a, they adopt a position perpendicular to the median plane P on the first circular sector of the magnetic track 21 (FIG. 8A) which corresponds to the closed and active position PA of the pivoting flaps 42 (on the right in FIGS. 1, 2, 4, 5), then a position parallel to the median plane P on the second circular sector of the magnetic track 21 (FIG. 8B) which corresponds to the open and passive position PP of the pivoting flaps 42 (on the left in Figures 1, 2, 4, 5).
- the two circular sectors of the magnetic track 21 are respectively linked by a South / North magnetic transition zone 21 d and a North / South magnetic transition zone 21 e.
- the arrangement of the North and South magnets on practically the entire surface of the magnetic track 21 makes it possible to maintain the mobile elements 22, and therefore the pivoting flaps 42, in very stable positions.
- any other equivalent magnetic design of the track and the movable elements may be suitable.
- the magnetic head 20 and the movable elements 22 are formed from an assembly of permanent magnets, oriented as a function of their magnetic polarity. More specifically, permanent magnets 23 of rectangular parallelepiped shape are used for the majority of the magnetic track 21, and permanent magnets 24 of similar shape for the movable elements 22. In addition, permanent magnets 25 of triangular shape and magnets are used. perms 26 of cylindrical shape in the magnetic transition zones 21 d and 21 e.
- the permanent magnets 23 to 26 should be fixed one after the other, adjacent or not, by a fixing member such as a clamping screw 27, in a suitable support, such as a ferromagnetic support, which constitutes on the one hand the sphere section of the magnetic head 20 and on the other hand the curved plates of the mobile elements 22.
- each movable element 22 can be directly coupled to the pivot axis B of the corresponding flap (s) (FIG. 1).
- each movable element 22 is coupled to the corresponding flaps by means of a movement transmission 30 (FIG. 2).
- the movement transmission 30 comprises a pinion / rack system arranged to couple each movable element 22 to the pivot axes B of the pivoting flaps 42 of each dynamic blade 4.
- a mechanical transmission 30 is arranged on each side of the flaps.
- a rack 31 extends vertically, that is to say perpendicular to the pivot axes B of the flaps and each pivot axis B comprises a pinion 32 meshing with the rack 31.
- Each rack 31 is guided in translation in the bearing structure 40 dynamic blades 4 by rails or the like (not shown) and the pinions 32 are guided in rotation in the bearing structure 40 by bearings 33.
- the wind turbines 1 10, 210 further comprise a safety device coupled to the contactless actuation mechanism for automatically positioning all the pivoting flaps 42 in passive position PP, having the effect of stopping the rotation of the wind turbine 1 10, 210 in the event of strong winds.
- the safety device is magnetic and contactless. It includes, for each dynamic blade 4, a magnetic brake 14 comprising a movable magnetic pad 14a and a fixed magnetic pad 14b, each magnetic pad consisting of at least one permanent magnet, and the permanent magnets of the two magnetic pads being arranged in opposition so that they repel each other when they are facing each other.
- the fixed magnetic stud 14b is integral with the corresponding rack 31 of the contactless actuation mechanism.
- the movable magnetic stud 14a is controlled to move between a passive position ( Figure 1 1 A in which it has no effect, and an active position ( Figure 1 1 B) in which it blocks the translation of the rack 31 by magnetic repulsion, simultaneously blocking the corresponding pivoting flaps 42 in the open position or passive position PP
- the mobile magnetic pads 14a of the various magnetic brakes 14 are connected to a central disc 15 by cables 1 6 and the central disc 15 is mounted free rotation about the braking axis 1 1 via bearings or the like
- a counter-disc 17 is mounted at the free end of the braking axis 1 1 via a bearing 18 above the central disc 15.
- the braking axis 1 1 is linked to an electromagnet 19, supplied with very low voltage by micro-alternator 12 (figure 2) or similar. If the wind is stable, the protection module 10 does not detect any anomaly and the magnetic brakes s 14 remain in passive position ( Figure 1 1 A). If the protection module 10 (FIG. 2) detects strong winds via a wind vane or the like (not shown), then it instantaneously controls the supply of the electromagnet 19 by the micro-alternator 12 to move the magnetic brakes 14 into position active ( Figure 1 1 B). The electromagnet 19 causes the descent of the braking axis 1 1, carrying with it the counter-disc 17, which comes into contact with the central disc 15 and descends with it.
- the central disc 15 pulls the cables 1 6 and moves the movable magnetic pads 14a to bring them above the fixed magnetic pads 14b.
- the magnetic repulsion force is such that it prohibits the movement of the racks 31 and therefore the closing of the pivoting flaps 42.
- this embodiment of the safety device is not limiting, and extends to any other device making it possible to fulfill the same function.
- the wind turbine 1 10, 210 which has just been described can be installed very particularly in the upper floor or under the roof of a building out of sight, without this example being limiting.
- the present invention is not limited to the embodiments described but extends to any modification and variant obvious to a person skilled in the art.
Landscapes
- 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
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1855233A FR3082567B1 (fr) | 2018-06-14 | 2018-06-14 | Turbine d'eolienne a axe de rotation vertical et pales dynamiques |
PCT/EP2019/065403 WO2019238785A1 (fr) | 2018-06-14 | 2019-06-12 | Turbine d'eolienne a axe de rotation vertical et pales dynamiques |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3807526A1 true EP3807526A1 (fr) | 2021-04-21 |
Family
ID=63407424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19735219.8A Withdrawn EP3807526A1 (fr) | 2018-06-14 | 2019-06-12 | Turbine d'eolienne a axe de rotation vertical et pales dynamiques |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3807526A1 (fr) |
FR (1) | FR3082567B1 (fr) |
WO (1) | WO2019238785A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3112818B1 (fr) * | 2020-07-23 | 2022-11-04 | Daniel Gouttefarde | Turbine a axe vertical pour la production d’une force motrice extraite de l’energie d’origine eolienne. |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8087894B2 (en) * | 2007-10-09 | 2012-01-03 | Franklin Charles Brooks | Aperture and flap vertical axis wind machine |
KR101180832B1 (ko) * | 2009-11-24 | 2012-09-07 | 노영규 | 수직형 풍력발전용 틸트식 회전날개장치 |
US8702393B2 (en) * | 2010-08-21 | 2014-04-22 | Jasim Saleh Al-Azzawi | Blinking sail windmill with safety control |
CN202673573U (zh) | 2012-05-25 | 2013-01-16 | 李同强 | 利用弹性元件减小阻力的风车发电装置 |
CN104204512B (zh) * | 2012-11-23 | 2016-11-02 | 戴胜祝 | 发电装置 |
DE202015100378U1 (de) | 2015-01-27 | 2015-04-29 | Jessy Vincent Coady | Vorrichtung zur Erzeugung eines Drehmomentes an einem Generator zur Energiegewinnung |
CN106150827B (zh) | 2015-04-28 | 2018-07-17 | 李治中 | 磁悬浮控制变桨高效流体动力机 |
-
2018
- 2018-06-14 FR FR1855233A patent/FR3082567B1/fr not_active Expired - Fee Related
-
2019
- 2019-06-12 EP EP19735219.8A patent/EP3807526A1/fr not_active Withdrawn
- 2019-06-12 WO PCT/EP2019/065403 patent/WO2019238785A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
FR3082567A1 (fr) | 2019-12-20 |
FR3082567B1 (fr) | 2020-07-17 |
WO2019238785A1 (fr) | 2019-12-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2018199C (fr) | Eolienne a stator | |
EP3058218B1 (fr) | Eolienne a axe de rotation horizontal comprenant des familles de pales | |
CA2980979C (fr) | Rotor de type savonius | |
CA2616708A1 (fr) | Dispositif eolien | |
EP3659923A1 (fr) | Systeme de propulsion d'un aeronef comportant un capot mobile et articule | |
EP3807526A1 (fr) | Turbine d'eolienne a axe de rotation vertical et pales dynamiques | |
EP0613594B1 (fr) | Moteur-couple allongé et dispositif de commande en debattement angulaire le comportant | |
EP2468631B1 (fr) | Articulation auto-motorisée et ensemble articulé auto-régulés | |
EP3373716A1 (fr) | Dispositif electronique pour vehicule automobile | |
EP2990375A2 (fr) | Dispositif micromécanique à actionnement électromagnétique | |
EP2724944B1 (fr) | Système de motorisation pour articulation à moyens d'enroulement croisés avec roulement fiabilisé | |
FR3064982A1 (fr) | Dispositif de deploiement | |
EP2906822A1 (fr) | Éolienne à axe vertical | |
EP2071708A1 (fr) | Couronne d'orientation motorisée | |
FR2805311A1 (fr) | Turbine radiale ouverte | |
FR2965592A1 (fr) | Eolienne | |
EP0458056B1 (fr) | Moteur électromagnétique | |
BE1022436B1 (fr) | Rotor eolien de type savonius | |
FR2908840A1 (fr) | Eolienne a axe vertical avec enceinte pour environnement urbain | |
WO2022106979A1 (fr) | Système de captage de l'énergie d'un courant de fluide | |
FR2939172A1 (fr) | Rotor eolien | |
WO2014177948A1 (fr) | Ensemble pour capter l'energie du vent et pour la transformer en energie utilisable | |
FR3008743A1 (fr) | Eolienne comprenant un systeme a pales orientables | |
EP1704633A1 (fr) | Rotor annulaire perfectionne de ralentisseur electromagnetique | |
FR2957387A1 (fr) | Eolienne a rendement eleve |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20210112 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20210810 |