KR101944098B1 - Vertical Type Wind Turbine with Contra-Rotating - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical double-inverted wind turbine generator, and more particularly, to a vertical double-inverted wind turbine generator having a double rotor structure that rotates in opposite directions to double the rotational force.

Description

{Vertical Type Wind Turbine with Contra-Rotating}

The present invention relates to a wind power generator for assembling two wind turbines having the same structure in the vertical direction so that each wind turbine rotates the permanent magnets of the generator and the power generation coils in opposite directions to each other, A louver is formed on the outer periphery of the wind turbine so as to facilitate the inflow of wind power into each of the wind turbines and a turbine blade for simultaneously generating lifting force and drag force is provided so as to double the rotational force of the wind turbine. The present invention relates to a vertical double-inverted wind turbine generator capable of doubling the relative speed between the permanent magnet and the power generation coil to increase the amount of generated power, compared to an existing generator having one fixed therein.

Generally, a wind turbine generator is a device that converts wind energy into electric energy. The wind turbine generator includes a stator fixed to a mounting base, a rotating shaft rotatably mounted on the stator and rotated by an external force, and a rotor rotating together with the rotating shaft. The stator and the rotor are formed of a power generation coil or a permanent magnet The power generation coil and the permanent magnet are formed such that a coil composed of a plurality of windings and a plurality of permanent magnet pieces are arranged at a constant pitch.

When the rotary shaft is rotated by the wind force, a current flows through the coil due to a magnetic field generated by the magnet while the power generation coil or the permanent magnet coupled to the rotary shaft rotates. Such a law is called Fleming's right-hand rule.

On the other hand, the wind turbine generator can be classified into a horizontal axis wind turbine installed horizontally and a vertical axis wind turbine installed vertically according to the direction of the rotation axis driving the generator, and the wind turbine blade A Darrieus type using a lift force mainly, and an Aerofoil type using both a drag force and a lift force at the same time.

Among them, the Sabonius type is named after the Dutch Savonius, consisting of two semi-cylindrical wings, and is composed of staggered combinations of wings that are slightly overlapping in the circumferential direction. According to this configuration, the wind exiting between the two wings flows into the reverse side of the opposite wing, thereby generating a drag acting in the direction of rotation and reducing the frictional resistance of the leading edge and increasing the rotational force.

The Darius type is a wind turbine invented by the Frenchman Darius, and the number of turbine blades is generally two or three, and unlike the Savonius type which uses drag, it is characterized by a very large number of revolutions because it uses lift.

However, as described above, when a wind turbine using only one of the drag force and the lift is installed in a country belonging to a relatively weak region of the wind, since the minimum stall speed is relatively high and the power generation efficiency is very low, It is necessary to select turbine blades having a structure that simultaneously uses drag and lift, increases turbine blade rotation angle that generates rotational force, and quickly removes vortex generated in the wind turbine exhaust area.

As a result, a wind turbine generator such as an aerofoil type that uses rotational force combining drag force and lift force has been proposed. However, this is also insufficient to generate more drag force than the conventional aerofoil type in a region where wind power is relatively weak like Korea There is a great need for a modified aerofoil-type wind power generator in which the direction of the camber on both sides of the camber is formed in the same direction.

Meanwhile, in the wind power generator constituted by the power generation coil and the permanent magnet as described above, the relative speed between the power generation coil and the permanent magnet is different from that of the dual inversion power generator, 50% efficiency, it is difficult to apply the existing wind turbine drive method at installation sites where the installation area or weight is limited.

In addition to solving these problems, it is necessary to search for a configuration of a wind turbine generator capable of increasing the output of the wind turbine generator and further improving the installation and maintenance by generating a combined rotational force in the turbine blade as a more advanced form .

The present invention relates to a method of solving the above-mentioned problems, comprising the steps of: connecting two wind turbines having the same structure (Modular structure) facing each other so as to rotate the power generating coil and the permanent magnet constituting the generator in opposite directions, The power generation coil and the permanent magnet are constructed so as to be rotated in mutually opposite directions and the lift, the drag and the vortex are generated simultaneously or sequentially in accordance with the rotation angle of the turbine blade in each of the wind turbines arranged up and down And a vertical double-inverted wind turbine capable of doubling the rotational force as compared with a conventional wind turbine.

Here, the cross-sectional shape of the turbine blade proposed to generate lift, drag, and vortex simultaneously or sequentially is a modified aerofoil type in which the camber of both sides of the aerofoil type is maintained in the same direction, have.

From another point of view, the present invention can be installed not only in a vertical direction but also in a horizontal direction, and can be operated in a region where the wind speed is as low as about 3 m / s (minimum starting speed). In addition, (A) to about 5 dB (A).

According to an aspect of the present invention, there is provided a vertical dual inversion wind turbine, comprising: a first wind turbine installed vertically or horizontally to generate rotational force in one direction by wind; A second wind turbine arranged on the same center line as the first wind turbine and installed opposite to the first wind turbine and generating a rotational force in a reverse direction; And a power generation unit provided between the first and second wind turbines and connected to the rotation axis of each of the wind turbines, wherein the power generation unit is configured such that the power generation efficiency is doubled by contra-rotation of the first and second wind turbines .

Here, the first or second wind turbine may include a plurality of guide vanes that are fixed at regular intervals along the circumference between symmetrical hollow disc-shaped upper / lower vane support plates and form a cross section whose trailing edge is curved toward one side A louver portion formed outside the wind turbine, including; Shaped cross-section is formed at equal intervals along the outer circumference between the upper and lower wing support plates, which are closed in a symmetrical state, and forms a composite cross section of a Darius type, a Sabonius type and an aerofoil type opposite to the guide vane A turbine blade including a rotor portion configured to be spaced apart from the inside of the louver portion and a cylindrical portion disposed at an axial center to form an outer diameter adjacent to the inner diameter of the turbine blade, the both ends of the cylindrical portion being integrally formed with the upper / Wherein the louver portion is fixed to one side to induce the wind force to the inside and the rotor portion is connected to a rotation axis connected to the power generation portion at the center thereof and is generated by the wind force induced from the louver portion It can rotate at the same time lift, drag and vortex.

The guide vane may be curved at an angle of 43 ° to 47 ° with respect to the direction of the wind turbine blade in the direction of rotation of the turbine blade.

In addition, the upper and lower vane support plates may have at least four supporting rods symmetrically formed on the upper and lower vane support plates in a radially symmetrical manner, or may be formed integrally with the support plate so that all surfaces except the surface corresponding to the support plate are parallel to the ground surface The base plate to be formed may be connected by a plurality of tension bolts so that vertical or horizontal installation can be facilitated.

The power generating unit may include a generator casing having a rotary shaft of the first wind turbine and a rotary shaft of the second wind turbine passing through one surface and the other surface, respectively; A power generating coil coupled to an end portion of a rotating shaft of the first wind turbine or the second wind turbine and a power generating unit mounted on the generator casing so as to be spaced apart at a predetermined interval along the periphery of the power generating coil, And a permanent magnet connected to the end portion.

Also, the louver portion and the rotor portion may be made of glass fiber aramid reinforced plastics (GARP).

The vertical dual inversion wind turbine according to an embodiment of the present invention may be formed as a double rotor structure rotating in opposite directions on the same center line so that both the permanent magnet and the power generation coil can be rotated, And maximizes the rotational force by simultaneously utilizing the lift, drag, and vortex, thereby achieving an effect that the power generation amount can be doubled as compared with the conventional wind power generator.

In addition, it is possible to install both the vertical type and the horizontal type. In addition, the mounting and fixing plate facing the outside of each wind turbine is installed for installation, maintenance and repair of the wind power generator, It is possible to obtain effects such as the omission of the pedestal in the direction installation stand and the prevention of rocking during transportation.

1 is a perspective view of a vertical dual inversion wind power generator installed vertically according to an embodiment of the present invention.
2 is a plan view of a vertical dual inversion wind power generator according to an embodiment of the present invention installed horizontally.
3 is a perspective view of a first wind turbine, which is an embodiment of the vertical dual inversion wind turbine of FIG.
Fig. 4 is a plan view of the first wind turbine of Fig. 3; Fig.
5 is a flow chart of the wind force flowing through the guide vane and turbine blades of the present invention.
FIG. 6 is a diagram showing the pressure distribution and the force acting on the cross section of the turbine blade according to the flow of the wind.
Fig. 7 is a view showing generation areas of lift, drag, and vortex due to rotation of the turbine blade.
FIG. 8 is a perspective view of a vertical dual inversion wind power generator according to an embodiment of the present invention when it is vertically installed as a support plate.
FIG. 9 is a plan view of a vertical dual inversion wind power generator according to an embodiment of the present invention when it is installed horizontally as a support plate.
10 is a cross-sectional view of a power generation part which is an embodiment of the vertical dual inversion wind power generator of FIG.

Hereinafter, the description of the present invention with reference to the drawings is not limited to a specific embodiment, and various transformations can be applied and various embodiments can be made. It is to be understood that the following description covers all changes, equivalents, and alternatives falling within the spirit and scope of the present invention.

In the following description, the terms first, second, and the like are used to describe various components and are not limited to their own meaning, and are used only for the purpose of distinguishing one component from another component.

Like reference numerals used throughout the specification denote like elements.

As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It is also to be understood that the terms " comprising, "" comprising, "or" having ", and the like are intended to designate the presence of stated features, integers, And should not be construed to preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, a vertical dual inversion wind power generator according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 10. FIG.

FIG. 1 is a perspective view of a vertical dual inversion wind power generator according to an embodiment of the present invention installed vertically, FIG. 2 is a plan view of a vertical double inversion wind power generator according to an embodiment of the present invention, to be.

1 and 2, a vertical dual inversion wind power generator according to an embodiment of the present invention may include a first wind turbine 100, a second wind turbine 200, and a power generator 300 have. The first wind turbine 100 and the second wind turbine 200 are configured to generate a rotational force to generate electricity in the power generating unit 300. The power generating unit 300 generates a first wind power And may be connected to the turbine 100 and the second wind turbine 200 via rotary shafts 150 and 250, respectively.

The power generation unit 300 includes a single power generation unit 300 that is not separately provided for each of the wind turbines 100 and 200 so that the rotational force of the first wind turbine 100 and the second wind turbine 200 The power generation unit 300 may be located between the first wind turbine 100 and the second wind turbine 200. [

That is, the power generation unit 300 can generate power between the first wind turbine 100 and the second wind turbine 200 by the rotational force of the first and second wind turbines 100 and 200.

More specifically, the first wind turbine 100 may be installed vertically or horizontally, and may generate a rotational force in one direction by the wind force blowing from the outside. In addition, the second wind turbine 200 may be arranged on the same center line as the first wind turbine 100. That is, when the first wind turbine 100 is installed horizontally, the second wind turbine 200 is arranged horizontally in the same direction and arranged in a row, .

Here, the second wind turbine 200 is structurally identical to the first wind turbine 100, but is installed so that the direction of rotation is opposite to that of the first wind turbine 100. That is, the second wind turbine 200 has the same structure and is disposed on the same center line as the first wind turbine 100, but is installed opposite to the first wind turbine 100 to generate rotational force in a direction different from that of the first wind turbine 100 .

Accordingly, the power generation units 300 connected between the first wind turbine 100 and the second wind turbine 200 can generate electricity by contra-rotating on the same center line, There is an advantage that the power generation efficiency can be doubled as compared with the wind power generation system in which the wind turbine 100 or 200 generates the rotational force to fix the conventional one and rotate only the other side.

In the contra-rotating structure, the rotation direction of each of the wind turbines 100 and 200 is opposite to the rotation direction of the power generating unit 300, It can be used as an electromagnetic braking device for emergency stop by switching to a rotating electric motor. When starting or stopping, it is possible to minimize the twisting or shaking of the supporting structure due to a sudden change in the load, so that stable operation may be possible.

The vertical dual inversion wind turbine of the above structure has a structure in which each of the wind turbines 100 and 200 utilizes the wind power as much as possible to increase the rotational force, smoothes the wind flow, minimizes the turbulence, There is a characteristic that the efficiency can be remarkably increased.

Hereinafter, specific shapes of the wind turbines 100 and 200 and the power generation unit 300 capable of raising power generation efficiency will be described with reference to FIGS. 1 to 9. As a result, the characteristics of the present invention will become clearer.

The first wind turbine 100 and the second wind turbine 200 are installed in different directions and are different from each other only in the direction of rotation. The structures of the first and second wind turbines 100, (100, 200) will be described. That is, the second wind turbine 200 is substantially the same as the first wind turbine 100 described below except for the direction in which it is installed.

3 is a perspective view of the first wind turbine of FIG. 3, and FIG. 5 is a perspective view of the guide vane and turbine blade of the present invention. FIG. 3 is a perspective view of a first wind turbine, FIG. 6 is a diagram showing a pressure distribution and a force acting on a cross section of a turbine blade according to a wind power flow as a vector. FIG. 7 is a view showing a generation area of lift, drag and vortex due to rotation of the turbine blade Fig.

FIG. 8 is a perspective view of a vertical dual inversion wind power generator according to an embodiment of the present invention when the vertical dual inversion wind power generator is installed as a support plate, FIG. 9 is a perspective view of the vertical double inversion wind power generator according to the embodiment of the present invention, And is horizontally installed.

1 to 9, the first wind turbine 100 may include a louver 120 and a rotor 140. Here, the louver portion 120 is formed on the outer side and the rotor portion 140 is formed on the inner side. That is, the rotor portion 140 may be disposed inside the louver portion 120.

More specifically, the louver portion 120 can include a plurality of guide vanes 126 for guiding the flow of wind power and upper and lower vane support plates 122, 124 for supporting the guide vanes 126 .

The upper and lower vane support plates 122 and 124 are formed in a hollow disc shape and are symmetrical and can be spaced apart by a predetermined distance and a plurality of guide vanes 126 are formed on the upper and lower vane support plates 122 and 124 And can be fixedly installed at regular intervals along the circumference.

The guide vane 126 may be integrally formed with the upper and lower vane support plates 122 and 124 and may have a length corresponding to an outer diameter and an inner diameter of the upper and lower vane support plates 122 and 124, As shown in FIG. 4, a curved cross section in which the trailing edge is curved toward one side can be formed. That is, the guide vane 126 has the upper and lower vane supporting plates 122 and 124 coinciding with the outer and inner diameters of the upper and lower vane supporting plates 122 and 124, respectively, 122, and 124, respectively.

At this time, the guide vane 126 may be arranged to be bent at an angle of 43 ° to 47 ° in the direction of rotation of the turbine blade 146, which will be described later with reference to the direction of wind flow, . This is because it is intended to allow the wind force to be easily guided to the turbine blades 146 so that the turbine blades 146 receiving the wind force induced by the guide vanes 126 can generate lift and drag more easily, The detailed description is given in the description of the turbine blade 146.

The rotor portion 140 may be formed to be spaced apart from the louver portion 120 by a predetermined distance and includes a plurality of turbine blades 146 and upper and lower blade support plates 142 and 144 for supporting the turbine blades 146 ).

Here, the upper and lower wing support plates 142 and 144 are formed in a closed disk shape that is closed except for the penetration portion of the rotation shaft connected to the power generation unit 300, And the plurality of turbine blades 146 form a predetermined length so that the upper and lower blade support plates 142 and 144 are spaced apart from each other and are equally spaced along the outer circumference.

The turbine blades 146 may be formed in a direction opposed to the guide vane 126 described above. In particular, the turbine blades 146 may be formed by forming a composite cross section of a Darius type, a Sabonius type, and an Aerofoil type, 126, respectively.

The composite wing shape of the Darius type, the Sabonius type, and the Aerofoil type is a shape that rotates simultaneously using drag, lift and vortex. Referring to FIG. 6, the wind force flows into the leading edge portion, When it flows along, a lift occurs on a surface having a large curvature and a drag is generated on a surface having a small curvature. In the rear edge, a vortex is generated, and the lift, drag and vortex are generated at the same time.

More specifically, as shown in FIG. 7, the wind force introduced into the turbine blades 146 through the guide vanes 126 generates a rotational force due to lifting and vortexing in the lift generation region, and further rotates due to drag and vortex By reducing the minimum stall speed due to the effect of pressure difference between the wind power inlet and outlet of the louver part 120 and the discharge of the incoming air by the vortex of the turbine blade 146, The output amount can be increased.

Accordingly, a plurality of guide vanes bent in the rotational direction of the turbine blades 146 on the outside of the turbine blades 146 of the hybrid type, such as the Daryus type, the Sabonius type, and the Aerofoil type, The flow of the wind power introduced into the guide vane 126 is guided to the turbine blades 146 flexibly along the curved surface of the guide vane 126, It is possible to simultaneously generate lifting force, drag force, and vortex from the wing 146 to enable a larger rotation.

In addition, the wind power discharged after rotating the turbine blades 146 passes through the guide vane 126 on the opposite side. At this time, since the wind power flow is not cut off, the noise generation can be kept to a minimum so that the noise pollution There is an additional advantage that it is possible to prevent the problem.

The first wind turbine 100 may further include a vortex generation prevention cylinder 160 having both ends integrally formed with the upper and lower vane support plates 142 and 144 so that the curved surface of the turbine vane 146 And to prevent vortexes from being generated at the center of the rotor portion 140 due to turbulence of the wind power discharged to the rear portion.

The vortex generated at the center of the rotor portion 140 is a turbulent flow generated by the combination of all the wind powers flowing into the turbine blades 146 and is different from the individually generated vortices used by the respective turbine blades 146 described above. That is, it should be noted that the vortex generation prevention cylinder 160 is intended to prevent the integrated vortex at the center of the rotor portion 140, not the individual vortex generated in the rear edge of the turbine blade 146.

Preferably, the vortex generation prevention cylinder 160 is spaced apart from the turbine blade 146 by a predetermined distance, and is adjacent to the turbine blade 146. That is, the vortex generation preventing cylinder 160 may be disposed at the axial portion of the first wind turbine 100 to form an outer diameter adjacent to the inner diameter of the turbine blade 146.

The vortex prevention barrel 160 may be formed in a cylindrical shape so as to minimize the resistance to wind power flow. However, the vortex prevention barrel 160 may be formed in a different shape from a structure that minimizes wind flow, Do.

This vortex generation prevention cylinder 160 minimizes the turbulence at the rear edge along the curved surface of the turbine blades 146 and generates the drag force and the eddy current of the turbine blades 146, have.

Meanwhile, although the guide vane 126 and the turbine blades 146 have been described in the above description, the number of the guide vanes 126 and the number of the turbine blades 146 may be sixteen and twelve, as shown in FIG. This makes it possible to make the wind flow more smooth as a number for making most effective the displacement of the guide vane 126 and the turbine blades 146.

The pitch of the guide vanes 126 may be set differently from the pitch of the turbine blades 146 of the rotor 140 to smooth the flow of wind.

1 to 4, each of the upper and lower wing support plates 142 and 144 is provided with a flange 172 at the center thereof so as to be coupled with a rotation axis 150 connected to the power generation unit 300 And a support plate 174 having at least four support rods 174a formed in a radially symmetrical manner is coupled or integrally formed at the center of the upper and lower vane support plates 122 and 124 so that the rotation axis 150 passes through the centers thereof A bearing coupling (not shown) may be provided, so that coupling and rotation of the rotary shaft 150 can be smoothly performed.

That is, both end portions of the louver portion 120 are formed so as to protrude from the rotor portion 140 so that the support plates 174 can be formed at both ends of the louver portion 120, and the support plate 174 can be combined with the bearing assembly A bearing assembly (not shown) may be formed on one side and the other side of the rotating shafts 150 and 250, which are connected to the power generator 300 and penetrate the wind turbines 100 and 200, respectively.

When the present invention is vertically installed through the structure of the support plate 174 as described above, it is possible to construct the support unit with the lower end of the lower side support plate 174 as shown in FIG. 1, to install the support unit directly on the ground without the support unit, An extension rod 174b extending to one side of the support plate 174 and the like may be formed and fixed to the ground as shown in FIG. However, this is not limitative as an example for facilitating understanding, and it may further include a support plate 176 and the like to facilitate vertical and horizontal installation.

Specifically, as shown in Figs. 8 to 9, it is possible to mount or fix on the ground or a flat member or the like through the support plate 176 by providing the above-mentioned support plate 176 on the outside of the support plate 174, Vertical or horizontal installation of the vertical dual inversion wind power generator of the present invention can be facilitated.

At this time, the support plate 176 may be formed to be flat, except for one surface corresponding to the support plate 174, so that the support plate 176 can be easily mounted on a ground or a flat member. That is, as shown in FIG. 1, one side of the square may have a curved groove corresponding to the curvature of the support plate 174 formed inside.

It is preferable that the support plate 176 is provided symmetrically with respect to the two wind turbines 100 and 200 on both sides of the wind turbine 100, 176 may be connected by a plurality of tension bolts 177 and a bolt (not shown) may be fastened to the end of the tension bolt 177.

Whether or not the flange 172, the bearing assembly (not shown), the support plate 174, the support rod 174a, the extension rod 174b, the support plate 176, etc., . That is, in addition to the above-described form, the installation structure and the support form of each wind turbine may be variously modified.

The vertical dual inversion wind power generator according to the embodiment of the present invention including the louver part 120 and the rotor part 140 having the above-described structure has a lower wind speed than the conventional dius type or sabonius type 30% to 40%, and it is possible to transmit a significantly increased rotational force to the power generator 300 by simultaneously receiving lift, drag, and vortex forces.

The vertical dual inversion wind power generator according to the embodiment of the present invention can be applied to the first wind turbine 100 and the second wind turbine 200 as well as the structure of the louver portion 120 and the rotor portion 140, The power generation amount can be maximized by the bi-directional rotation of the motor. This will be described in detail with reference to FIG.

10 is a cross-sectional view of a power generation part which is an embodiment of the vertical dual inversion wind power generator of FIG.

Referring to FIG. 10, the power generation unit 300 may include a generator casing 310, a power generation coil 320, and a permanent magnet 330.

Specifically, the generator casing 310 constitutes an external appearance of the power generating unit 300, and is a housing through which the rotating shaft 250 of the first wind turbine 100 and the second wind turbine 200 passes, The two rotary shafts 150 and 250 can pass through the upper and lower surfaces of the generator casing 310 when the double reversed wind power generator is vertically installed.

The rotary shaft 250 of the second wind turbine 200 may be connected to the generator casing 310 and the rotary shaft 150 of the first wind turbine 100 may have the generator coil 320 mounted at the end thereof . The permanent magnet 330 may be mounted on the generator casing 310 such that the permanent magnet 330 may be formed around the generator coil 320 and preferably positioned in the vertical direction of the generator coil 320.

Also, the power generation coil 320 and the permanent magnet 330 may be formed at a ratio of 0.7: 1 in order to minimize the reduction in resistance, thereby increasing the generation voltage or output.

Therefore, the power generation coil 320 connected to the first wind turbine 100 and the permanent magnet 330 connected to the second wind turbine 200 can generate electricity while rotating in opposite directions with minimum magnetic resistance, Conventionally, one side is fixed and can generate more power than the one type only.

In the above description, the power generation coil 320 is connected to the first wind turbine 100 and the permanent magnets 330 are connected to the second wind turbine 200 as illustrated in the figure The permanent magnet 330 may be connected to the first wind turbine 100 and the power generation coil 320 may be connected to the second wind turbine 200. In this case, That is, the first wind turbine 100 is connected to the generator casing 310.

Also, although not shown in the drawings, the power generating unit 300 may be protected by an outer casing (not shown) in addition to the generator casing 310. The outer casing (not shown) may be installed to seal between the first wind turbine 100 and the second wind turbine 200, and the outer casing (not shown) It is possible to protect the rotary shafts 150 and 250 of the turbine and the coupling (not shown in the figure) that axially join the rotary shaft and the like shown in Figs. 1 to 2 or Figs. 8 to 9 from the external environment.

In addition, the vertical dual inversion wind power generator according to the embodiment of the present invention is characterized in that the materials of the louver part 120 and the rotor part 140 use one or more fibers of carbon fiber, boron fiber, aramid fiber and glass fiber as binding yarn However, it may be made of glass fiber-aramid reinforced plastics (GARP).

This is because it is economical to use aramid fibers and glass fibers, which have appropriate tensile strength in comparison with the manufacturing cost, because carbon fiber and boron fiber have good tensile strength but high manufacturing cost.

However, it goes without saying that carbon fiber and boron fiber can also be used depending on the installation environment and the like.

The vertical dual inversion wind turbine of the present invention is 5 kW type and is experimentally compared with a Darius type wind turbine model (5 kW class) produced in Japan and China. The wind turbine diameter is 25% to 46% It was confirmed that the improvement of the power generation efficiency was reduced by 200% to 230%, the weight reduction by 35% to 45%, and the noise level by 3 dB (A) or more.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. The embodiments described above are therefore to be considered in all respects as illustrative and not restrictive.

100: First wind turbine
120: Louver portion
122: upper vane support plate
124: Lower vane support plate
126: Guide vane
140:
142: upper blade support plate
144: Lower wing support plate
146: turbine blade
150: First wind turbine rotary shaft
160: Vortex generation prevention barrel
172: flange
174: Support plate
174a:
174b: Extension rod
176:
177: Tension bolt
200: Second wind turbine
300:
310: Generator casing
320: power generation coil
330: permanent magnet

Claims (6)

A dual inversion wind turbine incorporating two wind turbines installed vertically or horizontally and rotating in mutually opposite directions by wind force,
And a plurality of guide vanes fixed at regular intervals along the circumference between the symmetrical hollow disc-shaped upper and lower vane support plates and forming a curved cross section, And
Shaped cross-section is formed at equal intervals along the outer circumference between the upper and lower wing support plates, which are closed in a symmetrical state, and forms a composite cross section of a Darius type, a Sabonius type and an aerofoil type opposite to the guide vane And a rotor portion configured to be spaced apart from the inside of the louver portion,
The louver portion is fixed to one side to guide the wind force inward,
The rotor portion is coupled to a rotation shaft connected to the power generating portion at the center, receives the lift, the drag and the vortex generated by the wind force induced from the louver portion,
Characterized in that the guide vanes form a greater number of turbine blades than the turbine blades
delete The method according to claim 1,
The guide vane,
Wherein the wind turbine blade is arranged at an angle of 43 to 47 degrees with respect to the direction of the wind turbine blade in the direction of the wind turbine inlet.
The method according to claim 1,
A support plate having at least four support rods formed in a radially symmetrical manner is coupled to or integrally formed with the center of the upper / lower vane support plate,
The support plate is installed outside the support plate so that the turbine blade axis is perpendicular to the ground or the support plate is formed parallel to the ground so that the turbine blade axis is perpendicular to the ground. Or horizontal installation of the wind turbine.
delete delete

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