OA17224A - Wind generator set and wind generator installation comprising several such wind generator sets - Google Patents

Abstract

This wind generator assembly (1) comprises a box (2), as well as a turbine (4), a generator (6) and an electric accumulator (8) which are arranged in the box (2). The box (2) forms a rectangular parallelepiped. The box (2) has two primary openings (11, 12) for air flow. The turbine (4) has an axis orthogonal to the air flow. The wind generator assembly (1) further comprises primary deflectors (22, 24) connected to the casing (2), a respective primary deflector (21, 22, 23, 24) generally forming an obtuse angle with the face of the corresponding primary opening (11, 12).

Description

The present invention relates to a wind generator assembly of the type comprising a casing, a turbine, a generator and an electric accumulator. Furthermore, the present invention relates to a wind turbine installation comprising several wind turbine assemblies in accordance with the invention.

The present invention finds particular application in the field of wind and solar energy, in particular to produce electricity at very low cost.

W003008803A1 describes a wind turbine assembly comprising a box, a generator, an electric accumulator and a three-bladed propeller wind turbine which is arranged on the box with its axis horizontal and parallel to the wind.

However, such a wind turbine can only produce electricity when the wind speed is between 8 m / s and 25 m / s. Therefore, the wind generator assembly of W003008803A1 cannot generate electricity in weak wind or strong wind. In addition, the three-bladed propeller wind turbine makes the W003008803A1 wind turbine assembly bulky and risks causing visual and noise pollution. In addition, its installation and maintenance cost is relatively high, as the wind turbine must work at a minimum height.

The present invention aims in particular to solve, in whole or in part, the problems mentioned above, that is to say to build a wind turbine assembly that fits well into the landscape, without inducing noise or visual pollution, with a reduced environmental impact, during installation and during dismantling, with a very low manufacturing carbon footprint, while increasing the power density per square meter at a reduced cost compared to the prior art.

To this end, the invention relates to a wind turbine assembly comprising at least:

a box;

a turbine;

a generator; and an electric accumulator;

the turbine, the generator and the electric accumulator being arranged in the box;

the box comprising at least four walls arranged so as to form overall a parallelepiped with a rectangular base, the box having at least two primary openings respectively delimited by two opposite faces of the parallelepiped so that the box forms a tube arranged to channel a flow of air between the two primary openings;

the turbine being arranged so that the axis of its rotor extends substantially orthogonal to each edge of the parallelepiped which joins said opposite faces, the turbine extending substantially the entire distance separating two opposite walls;

the wind generator assembly further comprising at least two primary deflectors respectively linked to the box substantially along an edge of one of said opposite faces, so that a respective primary deflector generally forms an obtuse angle with the face of 15 l 'corresponding primary opening.

Thus, this set of wind turbines with an axis perpendicular to the wind can operate in light winds and in very high winds, while having a high aerogenerator efficiency. This is because the walls of the casing channel the air flow to the turbine and the primary deflectors can produce a Venturi effect, which increases the flow rate and speed of the air flow passing over the turbine.

Specifically, the primary deflectors form a funnel for the air flow. As the inlet section narrows along the path of the air flow, the speed of the air flow increases before entering the box, which produces the Venturi effect. As the outlet section becomes larger. expands along the path of the air flow, the static pressure drops, which tends to suck the outgoing air flow, thus improving the mechanical efficiency of the air flow.

In addition, such a wind generator assembly has a low environmental impact, because it produces little noise, because its height is low and because it has no visible movement from a distance.

In addition, such an aerogenerator assembly is very compact, which does not require a building permit and makes it easy to transport by land, sea or air (helicopter). In addition, its installation and maintenance can be carried out on the ground, which greatly reduces its cost of installation and operation.

As this wind generator assembly integrates all the components in a box, its installation is simple and makes it immediately operational, that is to say connectable to an electrical network.

In the present application, the term "obtuse angle" corresponds to a dihedral angle, which is formed in section in a plane perpendicular to the edge connecting the box to a respective primary deflector, and which is greater than 90 °.

According to a variant of the invention, the or each turbine is shaped to be driven by air flows in both directions of the wind. Each primary opening can form, alternately, an inlet of the air flow into the box or an outlet of the air flow out of the box.

In other words, the turbine is reversible, which allows it to work, and therefore to produce electricity, with one direction of wind or with the opposite direction of wind. For example, the turbine and its blades can have a generally axisymmetric shape.

According to one embodiment of the invention, the wind generator assembly comprises at least two primary deflectors for each primary opening.

Thus, two or more primary deflectors allow the air flow to be channeled with a high flow rate, which increases the Venturi effect.

According to one embodiment of the invention, each primary deflector is flat and generally rectangular, the length of the primary deflector being approximately equal to the length of the edge to which said primary deflector is linked.

Thus, such a primary deflector can channel the air flow over the entire length of the primary opening, thereby maximizing the flow rate of the air flow. In addition, such flat primary deflectors have a simple geometry, which makes them inexpensive to manufacture and install. For example, such primary deflectors can be formed by the doors of a recycled container after being used for freight.

According to a variant of the invention, each primary deflector is curved. In this case, it is a median plane of the primary deflector forming an obtuse angle with said opposite face. Thus, such curved primary deflectors allow the Venturi effect to be optimized.

According to one embodiment of the invention, the electric accumulator is arranged on a floor wall intended to be placed horizontally, each primary opening being equipped with at least two primary deflectors linked respectively to the vertical and lateral edges of an opening. respective primary.

Thus, such an arrangement accelerates the inflow and increases the Venturi effect, and therefore the efficiency of the wind turbine assembly.

According to one embodiment of the invention, each primary opening is equipped with four primary deflectors linked respectively to the four edges of each of said opposite faces.

In other words, these four primary deflectors make it possible to form a funnel.

Thus, such an arrangement further accelerates the inflow and further increases the Venturi effect, and therefore the efficiency of the wind turbine assembly.

According to a variant of the invention, the wind generator assembly comprises four primary deflectors for at least one, preferably for each, primary opening. Thus, the air flow rate and the Venturi effect can be increased.

According to a variant of the invention, at least one, preferably each, primary opening extends over the entire area of one of said opposite faces of the parallelepiped. Thus, such an extension of a primary opening makes it possible to increase or even maximize the flow of air flowing through the box.

According to one embodiment of the invention, the box further has at least one secondary opening formed in a respective wall, the wind generator assembly further comprising at least one secondary deflector linked to the box substantially along an edge of a respective secondary opening, so that each secondary deflector has at least one passage position in which the secondary deflector allows a secondary air flow to pass through the secondary opening.

Thus, such a secondary opening improves the Venturi effect and therefore the efficiency of the turbine. Preferably, the box has at least two secondary openings formed symmetrically in two respective and opposite walls.

According to one embodiment of the invention, the axis of the or each rotor is substantially horizontal.

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Thus, such a turbine can be fixed on the floor wall, which facilitates its installation compared to a vertical axis turbine where it is necessary to provide a fixing on the ceiling wall to prevent the turbine from rotating door-to-door. false.

According to one embodiment of the invention, the turbine is of the Panemone rotary wing wind turbine type.

Thus, such a turbine has a very high efficiency for a wide range of air flow speeds. Therefore, such a turbine can work in weak wind as in strong wind.

According to one embodiment of the invention, the box is formed by a standardized container recycled after having been used for freight, the length of which is preferably 20 feet or 40 feet.

This makes it possible to recycle used containers, thus greatly reducing the cost of the wind turbine assembly and its carbon footprint due to its manufacture.

According to a variant of the invention, at least one electric accumulator is formed by an electric vehicle battery recycled after having been used for transport.

This makes it possible to recycle used batteries, thus reducing the carbon footprint of the wind turbine assembly.

According to a variant of the invention, each primary deflector is formed by a leaf of a door of the standardized freight container. Thus, the primary deflectors induce a very low cost to produce a wind turbine assembly according to the invention.

According to one embodiment of the invention, the wind generator assembly further comprises at least one retractable curtain arranged to selectively close all or part of a respective primary opening.

Thus, this retractable curtain makes it possible to regulate the air flow rate over the turbine, especially in strong winds.

According to one embodiment of the invention, the wind generator assembly further comprises baffles arranged in the box near at least one primary opening.

Thus, the baffles reduce the noise generated by the passage of the air flow over the turbine.

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According to a variant of the invention, each wall has a shield. Thus, such shielding protects the walls during transport, installation and operation of the wind turbine assembly.

According to a variant of the invention, the wind generator assembly comprises photovoltaic panels which extend at least over a roof wall of the box.

Thus, such photovoltaic panels make it possible to increase the production of electricity, at a reduced cost, because the infrastructure (box, electrical collector) is common to two modes of electricity production, solar and wind. Combining a wind generator set and photovoltaic panels on the same structure makes it possible to distribute electricity production over a day and over a year. This limits the impact of the intermittent nature of each of these two energy sources, which minimizes the need to store the energy produced.

Furthermore, the present invention relates to a wind turbine installation comprising several wind turbine assemblies according to the invention, the wind turbine assemblies being assembled together, preferably juxtaposed and / or stacked.

Thus, such an installation makes it possible to create a wind turbine field to increase the extent of wind exploitation. Such an assembly of boxes makes it possible to produce a particularly compact and easy to install wind turbine field.

According to a variant of the invention, the wind generator installation comprises several wind generator sets, the boxes of which are equipped with photovoltaic panels and arranged in parallel rows.

Thus, such a wind generator installation makes it possible to form a wind-solar park, with an electricity production density of 10 watts per square meter per hour. This being an annual average.

Such a wind generator installation makes it possible to lower the level of investment, for an installed field, under 1000 € / kWh of installed power and under 1 € / annual kWh produced, i.e. 0.05 € per kWh produced, which corresponds to a amortization over 20 years. Such a wind generator installation makes it possible to produce 30,000 kWh / year, per wind generator set (around 5 domestic households).

I

The present invention will be well understood and its advantages will also emerge in the light of the description which follows, given solely by way of non-limiting example and made with reference to the accompanying drawings, in which:

Figure 1 is a schematic perspective view of a wind turbine assembly according to a first embodiment of the invention;

Figure 2 is a section along the plane II in Figure 1;

FIG. 3 is a top view of the wind generator assembly of FIG. 1;

Figure 4 is a schematic perspective view of a wind turbine assembly according to a second embodiment of the invention;

Figure 5 is a schematic perspective view illustrating a wind turbine installation according to the invention and comprising several wind turbine assemblies according to the invention;

Figure 6 is a schematic perspective view illustrating another wind turbine installation according to the invention and comprising several wind turbine assemblies according to the invention; and FIG. 7 is a schematic perspective view illustrating yet another wind generator installation according to the invention.

Figures 1, 2 and 3 illustrate a wind generator assembly 1 comprising a box 2, a turbine 4, a generator 6 and an electric accumulator 8. The turbine 4, the generator 6 and the electric accumulator 8 are arranged in the housing 2.

The box 2 comprises four walls 2.1, 2.2, 2.3 and 2.4 which are arranged so as to form an overall parallelepiped with a rectangular base. The box 2 rests on a floor 5 which is substantially horizontal. The wall 2.1 forms a floor wall. The wall 2.3 forms a ceiling wall. The walls 2.2 and 2.4 form side walls, which are vertical when the floor 5 is horizontal.

The box 2 has two primary openings 11 and 12 which are delimited respectively by two opposite faces of the parallelepiped formed by the walls 2.1, 2.2, 2,3 and 2.4, so that the box 2 forms a tube arranged to channel a flow of air F2, caused by the wind, flowing between the two primary openings 11 and 12. In the example of Figures 1, 2 and 3, each primary opening 11 or 12 extends over the entire area of the corresponding face of the parallelepiped.

In the example of Figures 1, 2 and 3, the air flow F2 enters the box 2 through the primary opening 11, then it is channeled through the tube formed by the walls 2.1, 2.2, 2.3 and 2.4, and finally, it leaves the box 2 through the primary opening 12. By passing through the box 2, the air flow F2 can drive the turbine 4 in rotation.

The turbine 4 is of the Panemone rotary wing type wind turbine. The turbine 4 here has blades with variable orientations as a function of the angular position of the blade. The turbine 4 is arranged so that the axis Y4 of its rotor extends substantially orthogonal to each edge of the parallelepiped which joins said opposite faces delimiting the primary openings 11 and 12. The axis Y4 of the rotor of the turbine 4 is substantially horizontal. Bearings are firmly fixed at the level of the Y4 axis and on two opposite walls 2.2 and 2.4, which avoids the vibrations of the wind turbine assembly 1 and which allows the turbine 4 to produce electricity, including by wind. strong, that is to say greater than 25 m / s.

As shown in Figure 3, the turbine 4 extends substantially over the entire distance DY between two opposite walls 2.2 and 2.4.

The turbine 4 is shaped to be driven by air flows in both directions of the wind. Each primary opening 11 or 12 can form, alternately, an inlet for the air flow in the box 2 or an outlet for the air flow outside the box 2.

The wind generator assembly further comprises four primary deflectors 21, 22, 23 and 24. In the example of Figures 1, 2 and 3, each primary deflector is flat and generally rectangular. The length L21 of the primary deflector 21 or equivalent is approximately equal to the length of the edge to which this primary deflector 21 or equivalent is linked.

Each primary deflector 21, 22, 23 or 24 is connected to the box 2 substantially along an edge of one of said opposite faces delimiting a primary opening 11 or 12. In this case, each primary opening 11 or 12 is provided two respective primary deflectors 21 and 22 or 23 and 24.

The electric accumulator 8 is arranged on the floor wall which is placed horizontally. Each primary opening 11 or 12 is equipped with two primary deflectors 21 and 22 or 23 and 24 which are respectively linked to the vertical and lateral edges of this primary opening 11 or 12. Each of these edges can be qualified as “lateral” with respect to to a central axis of the parallelepiped forming the box 2.

The primary deflector 21 is linked to the box 2 along the right vertical edge 10, seen from the inside of the box 2, of the face delimiting the primary opening 11. The primary deflector 22 is linked to the box 2 along the left vertical ridge, seen from inside the box 2, of the face delimiting the primary opening 11. The primary deflector 23 is linked to the box 2 along the left vertical edge, seen from the inside of the box 2, 15 of the face delimiting the primary opening 12. The primary deflector 24 is linked to the box 2 along the right vertical edge, seen from the inside of the box 2, of the face delimiting the primary opening 12.

In this case, the box 2 is formed by a standardized container, which has been recycled after being used for freight, and the length of which is 40 feet (12.20 m). Each primary deflector 21, 22, 23 or 24 is formed by a leaf of a door of the standardized freight container.

Each connection of the box 2 to a respective primary deflector

21, 22, 23 or 24 is shaped so that each primary deflector 21,

22, 23 or 24 generally forms a respective obtuse angle A21, A22, A23 or

A24 with the face of the corresponding primary opening 11 or 12.

Each of the obtuse angles A21, A22, A23 and A24 is equal to approximately 120 ° in the plane of FIG. 3. The obtuse angles A21, A22, A23 and A24 are dihedral angles formed between the half-plane of the primary deflector and the half-plane. plan of the primary opening.

Depending on the direction of the wind, and therefore of the air flow F2, the primary deflectors 21 and 22 serve as funnels for the air flow F2. The inlet section tapers along the path of the air flow F2. Therefore the speed of the air flow F2 increases before entering the box 2, which produces the Venturi effect.

The primary deflectors 23 and 24 are arranged so that the outlet section is enlarging along the path of the air flow F2, which lowers the static pressure, therefore sucks the air flow F2 leaving the box 2. , thus improving the mechanical efficiency of the air flow.

Furthermore, the box 2 also has two secondary openings 31 and 32 which are formed in the wall 2.3. The wind generator assembly 1 further comprises two secondary deflectors 34 and 36 which are linked to the box 2 substantially along one edge of a respective secondary opening 31 or 32.

The secondary deflector 34 fulfills substantially the same function as the primary deflectors 21 and 22. The secondary deflector 36 fulfills substantially the same function as the primary deflectors 23 and 24.

Each connection of the box 2 to a respective secondary deflector 34 or 36 is shaped so that each secondary deflector 34 or 36 has at least one passage position (Figures 1, 2 and 3) in which the secondary deflector 34 or 36 passes a secondary air flow F31 through the secondary opening 31 or 32.

As shown in Figure 2, the wind generator assembly 1 further comprises a retractable curtain 40 which is arranged to selectively close the entire primary opening 11. The retractable curtain 40 is a roll-up curtain, associated with a winding motor. In the unrolled position, the retractable curtain 40 closes the entire primary opening 11. In the intermediate position, the retractable curtain 40 closes part of the primary opening 11. The retractable curtain 40 therefore makes it possible to adjust the flow rate of the air flow F2 .

FIG. 4 illustrates a wind turbine assembly 201 in accordance with a third embodiment of the invention. Insofar as the aerogenerator assembly 201 is similar to the aerogenerator assembly 1, the description of the aerogenerator assembly 1 given above in relation to FIGS. 1 to 3 can be transposed to the aerogenerator assembly 201, at l 'notable exception to the differences set out below.

An element or component of the wind turbine assembly 201 which is identical or corresponding, by its structure or by its function, to an element or to a component of the wind turbine assembly 1 bears the same numerical reference increased by 200.

A box 202 is thus defined with walls 202.1, 202.2, 202.3 and 202.4, an air flow F202, a turbine 204, primary openings 211 and 212 and primary deflectors 221 and 222.

The wind generator set 201 differs from the wind generator set 1, because the primary openings 211 and 212 are delimited by opposite faces of the box 202 which have large areas.

In addition, the wind turbine assembly 201 differs from the wind turbine assembly 1, because the turbine 204 extends along the longest dimension of the box 202.

Furthermore, the wind turbine assembly 201 differs from the wind turbine assembly 1, because each primary deflector 221 or 222 can by itself close off a respective primary opening 211 or 212,

FIG. 5 illustrates a wind generator installation 400 according to the invention, in which the wind generator sets are juxtaposed on the roof of a building. This wind generator installation can supply household buildings with electricity.

FIG. 6 illustrates a wind turbine installation 500 according to the invention, in which the wind turbine assemblies are stacked in a pyramid, which makes it possible to capture the wind over a certain height.

FIG. 7 illustrates a wind generator installation 600 according to the invention and comprising several wind generator sets 601, Each wind generator set 601 comprises photovoltaic panels 650 which extend over a roof wall 602.3 of the box 602 and over the entire upper surface of the box. a respective wind turbine assembly 601.

The 601 wind turbine assemblies are aligned in rows placed at different altitudes, to avoid interference in air flow from row to row. All of these parallel rows, arranged on the mountainside, can form a giant funnel, producing a Venturi effect, which accelerates the flow of air entering each turbine.

To facilitate reading of FIG. 7, only the first wind turbine assemblies 601 of each row are shown. However, the rows can extend over a great length.

Claims (13)

1. Wind turbine assembly (1; 201) comprising at least: a box (2; 202); a turbine (4; 204); a generator (6); and an electric accumulator (8); the turbine (4; 204), the generator (6) and the electric accumulator (8) being arranged in the box (2; 202); the box (2; 202) comprising at least four walls (2.1, 2.2, 2.3, 2.4) arranged so as to form an overall parallelepiped with a rectangular base, the box (2; 202) having at least two primary openings (11, 12 ; 211, 212) respectively delimited by two opposite faces of the parallelepiped so that the box (2; 202) forms a tube arranged to channel an air flow (F2) between the two primary openings (11, 12; 211, 212 ); the turbine (4; 204) being arranged so that the axis (Y4) of its rotor extends substantially orthogonally to each edge of the parallelepiped which joins said opposite faces, the turbine (4; 204) extending substantially over the entire distance (DY) separating two opposite walls (2.2, 2.4); the wind generator assembly (1; 201) further comprising at least two primary deflectors (21, 22, 23, 24) respectively linked to the box (2; 202) substantially along an edge of one of said opposite faces, so that a respective primary deflector (21,22, 23, 24) generally forms an obtuse angle (A21, A22, A23, A24) with the face of the corresponding primary opening (11, 12; 211, 212). 2. Wind generator assembly (1; 201) according to claim 1, comprising at least two primary deflectors (21,22,23, 24) for each primary opening (11, 12; 211, 212). 3. Wind generator assembly (1; 201) according to claim 2, wherein each primary deflector (21, 22, 23, 24) is flat and generally rectangular, the length (L21) of the primary deflector (21, 22, 23, 24) being approximately equal to the length of the ridge to which said primary deflector (21, 22, 23, 24) is bonded. 4. Wind generator assembly (1; 201) according to one of the preceding claims, wherein the electric accumulator (8) is disposed on a floor wall intended to be placed horizontally, each primary opening (11, 12; 211, 212 ) being equipped with at least two primary deflectors (21, 22, 23, 24) linked respectively to the vertical and lateral edges of a respective primary opening (11, 12; 211, 212). 5. Wind turbine assembly according to claim 4, in each primary opening is equipped with four primary deflectors linked respectively to the four edges of each of said opposite faces. 6. Wind generator assembly (1) according to one of the preceding claims, wherein the box (2; 202) further has at least one secondary opening (31, 32) formed in a respective wall, the wind generator assembly (1; 201) further comprising at least one secondary deflector (34, 36) connected to the box (2) substantially along an edge of a respective secondary opening (31, 32), so that each secondary deflector (34, 36 ) has at least one passage position in which the secondary deflector (34, 36) allows a secondary air flow (F31) to pass through the secondary opening (31,32). 7. Wind turbine assembly (1; 201) according to one of the preceding claims, wherein the axis (Y4) of the or each rotor is substantially horizontal. 8. Wind turbine assembly (1; 201) according to one of the preceding claims, wherein the turbine (4; 204) is of the Panemone rotary wing wind turbine type. 9. Wind turbine assembly (1; 201) according to one of the preceding claims, wherein the box (2; 202) is formed by a standardized container recycled after having been used for freight, the length of which is preferably 20 feet or 40 feet. 10. Wind generator set (1) according to one of the 5 preceding claims, further comprising at least one retractable curtain (40) arranged to selectively close all or part of a respective primary opening (11, 12). 11. Wind turbine assembly according to one of the preceding claims, further comprising baffles arranged in the box near at least one primary opening. 12. Wind generator installation (400; 500) comprising several wind generator sets according to one of the claims 15 above, the wind turbine assemblies being assembled together, preferably juxtaposed and / or stacked.