KR20230097912A - A system for wind power generation protecting blade based on airflow, blade and method for controlling it - Google Patents

Abstract

A wind power generation system that protects blades based on air volume is disclosed. The wind power generation system includes a rail providing a movement path in a horizontal direction, a movable body configured to slide along the movement path of the rail, and a plurality of movable bodies installed on the movable body to provide power for movement of the movable body based on energy according to wind. It may include a nacelle equipped with a generator for generating electric power by rotating in conjunction with the movement of at least one of the blade, the movable body, and the blade, and a control unit for controlling the movable body and the blade. Each blade includes a plurality of air pockets, and the area of the plurality of air pockets may be adjusted by folding or unfolding at least two air pockets to overlap each other in response to an area control signal applied from the controller.

Description

Wind power generation system that protects blades based on wind volume, blades and control method thereof

The present invention relates to a wind power generation system that protects blades based on air volume, and more particularly, to a wind power generation system that performs wind power generation based on one or a plurality of movable bodies having blades, wherein the blades are It relates to a wind power generation system capable of protecting blades by adjusting the area, blades and control methods applied thereto, and the like.

A wind generator is a device that converts wind energy into electrical energy. Blowing wind causes the blades of a wind generator to rotate. The rotational force of the wings generated at this time can generate electricity. Specifically, a wind power generator may consist of three parts: a wing, a gearbox, and a generator. A wing is a device that is rotated by the wind and converts wind energy into mechanical energy. The generator is a device that converts the mechanical energy generated by the wings into electrical energy.

Such wind power generation has been attracting attention as a new renewable energy to replace conventional fossil fuels, but in a typical configuration of a blade-rotating wind power generator, it is necessary to increase the size of the rotor blades to obtain greater electrical energy, whereas the size of the rotor blades is There is a problem of generating noise around.

Korean Registered Patent Publication No. 10-2032550 ("Wind Power Generation Device", The Joyun Energy Co., Ltd.)

An object of the present invention for solving the above problems is a wind power generation system for performing wind power generation based on one or a plurality of movable bodies having blades, which can protect the blades by adjusting the area of the blades according to the wind volume. Its purpose is to provide a power generation system, a blade applied thereto, a control method, and the like.

However, the problem to be solved by the present invention is not limited thereto, and may be expanded in various ways without departing from the spirit and scope of the present invention.

In order to achieve the above object, the present invention provides a wind power generation system that protects blades based on wind volume in one aspect. The wind power generation system includes a rail providing a horizontal movement path; a movable body configured to slide and move along the movement path of the rail; A plurality of blades installed on the mobile body to provide power for movement of the mobile body based on energy according to wind; a nacelle equipped with a generator generating electric power by rotating in conjunction with the movement of at least one of the moving body and the blade; and a controller for controlling the moving body and the blade. Each of the blades includes a plurality of air pockets, and in response to an area control signal applied from the controller, the area of the plurality of air pockets can be adjusted by folding or unfolding the at least two air pockets so that they do not overlap. there is.

The blade may include a sail-shaped first thin film forming a first air pocket receiving wind; a second thin film in the form of a sail forming a second air pocket receiving wind; A first thin film support for supporting the first thin film to form the first air pocket and a second thin film support for supporting the second thin film to form the second air pocket, wherein the first thin film support and the a frame unit for accommodating the second thin film support unit in the form of a hinge so that it can be folded or unfolded; And it may include a rotation unit for rotating the frame unit to adjust the orientation of the first thin film and the second thin film.

The area control signal may include: a first area control signal indicating to reduce the area of the plurality of air pockets; and a second area control signal indicating to increase the area of the plurality of air pockets.

The first area control signal may be a signal for preventing breakage of the blade by reducing the area of the plurality of air pockets when the real-time air volume received by the blade is equal to or greater than a set value.

The blade, based on receiving the first area control signal, controls the first thin film support and the second thin film support to fold at least a portion of the first thin film and the second thin film to overlap, It is possible to reduce the total area of a plurality of air pockets formed in the blade.

The blade, based on receiving the second area control signal, controls the first thin film support and the second thin film support to spread the first thin film and the second thin film so that they do not overlap, and in the blade It is possible to increase the total area of the plurality of formed a-pockets.

The blade may include a plurality of foldable air pocket units connected in a vertical direction, and each of the foldable air pocket units may be configured to fold or unfold the plurality of air pockets to overlap each other.

The rail forms a loop, and each of the blades determines the target movement direction based on information about a target movement direction determined according to a position of each of the plurality of blades in the loop and information about a wind direction. It can be configured to rotate adaptively to maximize the power to.

In order to achieve the above object, the present invention provides a blade in another aspect. The blade is equipped with a rail providing a horizontal movement path, a moving body configured to slide and move along the moving path of the rail, and a generator generating electric power by rotating in conjunction with the movement of at least one of the moving body and the blade. nacelle; And applied to a wind power generation system including a control unit for controlling the movable body and the blades, a plurality of the blades are installed on the movable body to provide power for movement of the movable body based on energy according to wind, and each The blade includes a plurality of air pockets, and in response to an area control signal applied from the controller, the area of the plurality of air pockets may be adjusted by folding or unfolding the at least two air pockets to overlap each other.

The blade may include a sail-shaped first thin film forming a first air pocket receiving wind; a second thin film in the form of a sail forming a second air pocket receiving wind; A first thin film support for supporting the first thin film to form the first air pocket and a second thin film support for supporting the second thin film to form the second air pocket, wherein the first thin film support and the a frame unit for accommodating the second thin film support unit in the form of a hinge so that it can be folded or unfolded; And it may include a rotation unit for rotating the frame unit to adjust the orientation of the first thin film and the second thin film.

The area control signal may include: a first area control signal indicating to reduce the area of the plurality of air pockets; and a second area control signal indicating to increase the area of the plurality of air pockets.

The first area control signal may be a signal for preventing breakage of the blade by reducing the area of the plurality of air pockets when the real-time air volume received by the blade is equal to or greater than a set value. Based on receiving the first area control signal, the blade controls the first thin film support and the second thin film support to fold at least a portion of the first thin film and the second thin film to overlap, A total area of a plurality of air pockets formed in the blade may be reduced.

The blade, based on receiving the second area control signal, controls the first thin film support and the second thin film support to spread the first thin film and the second thin film so that they do not overlap, and in the blade It is possible to increase the total area of the plurality of formed a-pockets.

The blade may include a plurality of foldable air pocket units connected in a vertical direction, and each of the foldable air pocket units may be configured to fold or unfold the plurality of air pockets to overlap each other.

The rail forms a loop, and each of the blades determines the target movement direction based on information about a target movement direction determined according to a position of each of the plurality of blades in the loop and information about a wind direction. It can be configured to rotate adaptively to maximize the power to.

In order to achieve the above object, the present invention provides a blade control method applied to a wind power generation system in another aspect. The control method includes a rail providing a movement path in a horizontal direction, a moving body configured to slide and move along the movement path of the rail, and providing power for moving the moving body based on energy according to wind installed on the moving body. A plurality of blades-each blade including a plurality of air pockets-, a nacelle equipped with a generator for generating electric power by rotating in conjunction with the movement of at least one of the moving body and the blade, and the moving body and A control method of a blade in a wind power generation system including a control unit for controlling the blade, comprising: receiving an area control signal from the control unit; and adjusting the areas of the plurality of air pockets by folding or unfolding the at least two air pockets to overlap each other in response to the received area control signal.

The blade may include a sail-shaped first thin film forming a first air pocket receiving wind; a second thin film in the form of a sail forming a second air pocket receiving wind; A first thin film support for supporting the first thin film to form the first air pocket and a second thin film support for supporting the second thin film to form the second air pocket, wherein the first thin film support and the a frame unit for accommodating the second thin film support unit in the form of a hinge so that it can be folded or unfolded; And it may include a rotation unit for rotating the frame unit to adjust the orientation of the first thin film and the second thin film.

The area control signal may include: a first area control signal indicating to reduce the area of the plurality of air pockets; and a second area control signal indicating to increase the area of the plurality of air pockets.

The first area control signal may be a signal for preventing breakage of the blade by reducing the area of the plurality of air pockets when the real-time air volume received by the blade is equal to or greater than a set value. Based on receiving the first area control signal, the blade controls the first thin film support and the second thin film support to fold at least a portion of the first thin film and the second thin film to overlap, A total area of a plurality of air pockets formed in the blade may be reduced.

The blade, based on receiving the second area control signal, controls the first thin film support and the second thin film support to spread the first thin film and the second thin film so that they do not overlap, and in the blade It is possible to increase the total area of the plurality of formed a-pockets.

The disclosed technology may have the following effects. However, it does not mean that a specific embodiment must include all of the following effects or only the following effects, so it should not be understood that the scope of rights of the disclosed technology is limited thereby.

According to the present invention, a wind power generation system that generates power based on a moving body using wind power along a moving path provided by a rail unit is realized, and in particular, according to the real-time air volume, the area of the blade, for example, a plurality of sails provided on the blade By folding the shaped thin film to adjust the area of the air pocket, it is possible to prevent the rupture of the blade due to strong wind in advance, thereby providing an advantage in terms of easy maintenance of the wind power generation system.

In addition, by configuring the rotating shaft of the generator to rotate using the movement of a plurality of blades and / or moving bodies moving along the movement path provided by the rail, it is possible to solve the noise generation problem due to the rotation of the conventional large rotary blades.

In addition, in constructing a wind farm capable of producing a large amount of electricity, space efficiency can be increased and construction costs can be reduced compared to conventional blade rotation type wind power generators.

In addition, by configuring the blades to be rotatable adaptively to the direction of the wind, power can be produced with high efficiency regardless of changes in weather conditions.

1 is a conceptual diagram of a wind power generation system according to an embodiment of the present invention.
2 is a perspective view of a loop-type wind power generation system according to an embodiment of the present invention.
3 shows a power transmission structure between a blade and/or a movable body and a central shaft of a generator according to the first aspect.
4 shows a power transmission structure between a blade and/or a movable body and a central shaft of a generator according to a second aspect.
5 is a conceptual diagram of Bernoulli's theorem.
6 shows the speed of a sailing yacht according to the wind and category type.
7 is a cross-sectional view of a blade support according to one side.
8 is an exemplary view of a highly separable blade according to one aspect;
9 is a coupling relationship diagram of a rail, a movable body, and a blade according to an aspect.
10 is a top view of a wind power generation system according to one aspect;
11 is a top view of a wind power generation system with adjustable blade spacing.
12 is an exemplary view of the arrangement of the central shaft of the generator.
13 is an exemplary view of a wind power generation system capable of gear change.
14 is an exemplary view of a hangar constructed separately.
15 is an exemplary view of a hangar built on rails.
16 is an exemplary view of a fastening form between blades.
17 is an exemplary view of a blade that can be folded in the direction of the ground.
18 is an exemplary view of a multiple rail arrangement form having concentricity.
19 is an exemplary view of a stacked multi-rail arrangement form.
20 is a conceptual diagram of a wind power generation system according to a second embodiment of the present invention.
21 is a conceptual diagram of a wind power generation system according to a third embodiment of the present invention.
FIG. 22 shows a power transmission structure between a movable body and a central shaft of a generator in the embodiment of FIG. 21 .
23 is a conceptual diagram of a wind power generation system according to a fourth embodiment of the present invention.
FIG. 24 is a cross-sectional view for explaining the matching structure of the rail and the movable body shown in FIG. 23 and the connection structure between them, the rotating shaft and the nacelle.
FIG. 25 is an exemplary diagram for illustratively explaining a path through which the power generated by the generator in FIG. 24 is transmitted to a transmission line.
26 is a conceptual diagram for explaining a structure in which a slip is prevented by configuring a gear between a wheel and a rail in the form of a gear.
27 is a perspective view for explaining a rail part forming a loop.
28 is a perspective view for explaining a plurality of rail parts constituting a plurality of loops.
29 is a perspective view exemplarily illustrating the structure of a blade capable of variably adjusting the area of an air pocket.
30 is a cross-sectional view exemplarily illustrating a connection relationship between a movable support unit and a track.
31 is a perspective view illustrating a state in which the area of a sail-shaped thin film is reduced according to a first area control signal.
32 is a perspective view illustrating a highly separable blade in which a plurality of blade units employing the blade structure shown in FIG. 29 are vertically connected.
33 is a perspective view illustratively illustrating a structure of a blade having a plurality of thin films and having an air pocket area variably adjustable by overlapping the plurality of thin films.
34 is a perspective view illustrating a state in which the total area of an air pocket is reduced according to a first area control signal;
35 is a perspective view illustrating a highly separable blade in which a plurality of blade units employing the blade structure shown in FIG. 33 are vertically connected.
36 illustrates a blade structure capable of reducing the area of an air pocket by folding a sail-shaped thin film based on a multi-folding structure as another embodiment.
37 is a flowchart for explaining a control operation of the wind power generation system including blades for adjusting the area described in the embodiment with reference to FIGS. 29, 33 and 25 of the present invention.
38 is a flowchart for explaining the detailed process of adjusting the area of the blade.
39 shows a comparison result of the output of an existing wind power generator and a wind power generation system according to an embodiment of the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments are illustrated in the drawings and described in detail.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail. In order to facilitate overall understanding in the description of the present invention, the same reference numerals are used for the same components in the drawings, and redundant descriptions of the same components are omitted.

As described above, wind power generation has been attracting attention as a new and renewable energy to replace conventional fossil fuels, but in a blade rotary wind power generator with a typical configuration, it is necessary to increase the size of the rotor blades to obtain greater electrical energy, while the rotor blades There is a problem of generating noise around the large size. In order to minimize damage due to rotational noise, attempts have been made to change the installation location of the wind turbine to the sea, but in the case of offshore installation, there is a problem that rather worsens the economics, which is the advantage of wind power generation, due to the increase in construction cost, and environmental On the negative side, it can cause big problems.

The present invention is intended to solve the above problems, and a wind power generation system according to an embodiment of the present invention uses movement of a plurality of blades and/or a moving body moving along a movement path provided by a rail to generate a generator. By configuring the rotary shaft to rotate, it is possible to solve the problem of generating noise due to the rotation of a conventional large rotary blade. Hereinafter, a wind power generation system according to an embodiment of the present invention will be described in more detail with reference to the drawings.

<First Embodiment>

1 is a conceptual diagram of a wind power generation system according to an embodiment of the present invention, and FIG. 2 is a perspective view of a loop type wind power generation system according to an embodiment of the present invention. As shown in FIG. 1 or 2, the wind power generation system 100 according to an embodiment of the present invention includes a nacelle equipped with a rail 10, a moving body 20, a plurality of blades 30, and a generator. ) (40).

The rail 10 may provide a moving path along which the moving body 20 and/or the plurality of blades 30 may slide and move. In the embodiment shown through FIG. 1 , the rail 10 is illustrated as providing a movement path on the side of the moving body 20, but the rail 10 has the moving body 20 and/or a plurality of blades 30 It can have various design forms that can provide a movement path that can be moved by sliding. For example, a form such as a train rail or a monorail may be employed. As shown in FIG. 1, the rail 10 according to an embodiment of the present invention is installed on the ground or through a support to provide a horizontal movement path for the moving body 20 and/or the plurality of blades 30 can be configured to

The movable body 20 may be configured to slide and move according to the movement path provided by the rail 10, and a plurality of blades 30 are installed on the movable body to move the movable body 20 based on energy according to wind. can provide a driving force for That is, when the wind blows, energy provided by the wind acts on the blades 30 and the blades 30 and the moving body 20 connected to the blades are configured to move. In the embodiment shown in FIG. 1, it is illustrated that the moving body 20 contacts the rail 10 and a plurality of blades 30 are installed on the moving body 20, but the rail 10, the moving body 20 and the blades As for the installation form and structure of 30, various modifications can be employed. For example, in one aspect, each of the blades 30 is configured to slide on the rail 10, and the movable body 20 may function as a configuration connecting the plurality of blades 30. In one aspect, the moving body 20 may be integral as shown in FIG. 1, and in another aspect, it may be in the form of a chain having a plurality of segmental structures. Also, depending on the embodiment, the movable body 20 may be made of a material having flexibility.

Referring back to FIG. 1 , adjacent to the movable body 20 and/or the blade 30, a nacelle 40 equipped with a generator may be disposed. According to one aspect, the generator may be a generator that generates power according to the rotation of the generator central axis gear 45 coupled to the generator central axis of rotation, the central axis of rotation of the generator is the movable body 20 and the blades 30 It may be configured to rotate in conjunction with at least one movement. In FIG. 1, a configuration in which the generator center rotation shaft rotates in conjunction with the movement of the movable body 20 is illustrated.

In relation to this, FIG. 3 shows a power transmission structure between a blade and/or a movable body and a generator central rotation shaft according to a first aspect, and FIG. 4 shows a power transmission structure between a blade and/or a movable body and a generator central rotation shaft according to a second aspect. indicates

As shown in FIG. 3, the generator has a generator center rotation shaft 45c and a circular toothed gear 45 coupled to the generator center rotation shaft 45c, and at least one of the moving body 20 and the blade 30 A plurality of tooth mountains 20a are provided on the surface facing the generator, and according to the movement of at least one of the movable body 20 and the blade 30, the tooth mountain 20a is a tooth mountain of the circular tooth gear 45 ( As it moves in engagement with 45a), the generator center rotation shaft 45c may be configured to rotate. Although FIG. 3 exemplarily shows that the movable body 20 is provided with the sawtooth mountain 20a, the sawtooth mountain 20a may be provided on the surface of the blade 30 facing the generator.

Alternatively, as shown in FIG. 4, for example, a blade power transmission rod 30a may be provided on the side facing the generator of the blade 30, and the blade power transmission rod 30a moves while the generator central axis The generator center rotating shaft 45c may be configured to rotate by acting on the gear tooth mountain 45a formed on the gear 45. Unlike shown in FIG. 4 , a power transmission rod may be provided with a predetermined interval on the side of the moving body 20 facing the generator to induce rotation of the central rotational shaft 45c.

12 is an exemplary view of the arrangement of the central shaft of the generator. As shown in FIG. 12, the central axis of the generator may have various embodiments in relation to the rail. According to one aspect, in an embodiment in which the rail 10 and the movable body 20 form a loop as shown in FIG. 2 or 12, the generator center rotation shafts 1210 and 1220 may be located outside the loop. , and may be located inside a loop. In addition, the rotation of the generator center rotation shafts 1210 and 1220 may be directly interlocked with the movement of the movable body and/or the blade, or may be configured to interlock with rotation by providing an intermediate means such as the generator center rotation shaft 1230. As shown in FIG. 12, the wind power generation system according to an embodiment of the present invention further includes a power transmission shaft 1231 that rotates in conjunction with the movement of at least one of the moving body 20 and the blade 30, , The rotation pulley provided on the power transmission shaft 1231 and the rotation pulley provided on the generator center rotation shaft 1230 of the generator may be configured to rotate in conjunction with each other according to the rotation belt 1233. Rotating belt 1233 may be configured as a conveyor belt or chain, for example.

Referring back to FIG. 2 , in the wind power generation system according to an embodiment of the present invention, the rail 10 may be configured to form a loop. According to one aspect, the rail 10 may further include an upper frame 11 supported by a plurality of upper frame supports 13, and the upper frame 11 is capable of moving the top of the blade 30 It can be configured to improve the standing stability of the blades 30 by maintaining.

Since the rail 10 is formed as a loop, the movement path of the plurality of blades and/or the movable body may have a circulation structure. Here, each of the plurality of blades 30 is moved to a target based on the information about the direction of target movement and the information about the direction of the wind determined according to the position of each of the plurality of blades 30 in the loop. It can be configured to rotate adaptively to maximize power in that direction.

According to another aspect, each of the plurality of blades 30 is made of a material having flexibility and has a plurality of air pockets, and in a target movement direction determined according to the position of each of the plurality of blades in the loop. It may be configured to be deformed into a shape that maximizes power in a target movement direction by controlling the amount of air charged in at least one air pocket among a plurality of air pockets based on information about air pockets and wind direction.

Regarding the target movement direction, it will be described in detail with reference to FIG. 10 . 10 is a top view of a wind power generation system according to one aspect; As shown in FIG. 10, according to one embodiment of the present invention, the loop formed by the rail 10 includes, for example, a first part 1010 providing a movement path in the first direction, A second part 1030 providing a movement path in an opposite second direction, a first joint part 1020 providing a movement path from the first part to the second part and movement from the second part to the first part It can include a second joint portion 1040 providing a pathway. For example, the blades may be configured to move clockwise within the loop, and thus the target movement direction of the blades in the first part 1010 may be the (right → left) direction in FIG. 10, and the first joint part The target movement direction of the blades at 1020 depends on the extent to which the blades move from the first portion 1010 to the second portion 1030, in the (right → left) direction, in the (down → up) direction, and then again. It gradually changes in the (left → right) direction. Meanwhile, the target movement direction of the blades in the second part 1030 is determined in the (left → right) direction, and the target movement direction of the blades in the second joint part 1040 indicates that the blades move in the second part 1030. Depending on the degree of movement to the first part 1010, it gradually changes in the (left → right) direction, in the (up → down) direction, and again in the (right → left) direction. That is, the target moving direction of the blades may be determined differently according to the position of each blade in the loop.

When the target movement direction of each blade is determined, each blade is adaptively rotated so that the orientation of each blade is changed to maximize the power of each blade in the target movement direction based on the wind direction information. can do. For example, rotation of each of the plurality of blades may be performed based on a rotational axis perpendicular to the ground.

Regarding the maximization of power in the target movement direction according to the wind direction, FIG. 5 is a conceptual diagram of Bernoulli's theorem, and FIG. 6 shows the speed of the sailing yacht according to the wind and category type. As shown in FIG. 5, Bernoulli's theorem can explain the phenomenon in which lift is generated by generating a pressure difference by changing the speed of the air flow, and by applying Bernoulli's theorem, the desired target moves fast in the direction of the wind. The blades can be oriented to maximize power in that direction. 6 also shows the speed of the sailing yacht according to the wind and category type. As shown in FIG. 6, the sailing yacht can generate power to move the ship in a desired direction even in the same wind direction by properly adjusting the direction of the sail. Similarly, in the wind power generation system according to an embodiment of the present invention, when the target movement direction is determined according to the position of the blades, the blades are rotated to maximize the power in the target movement direction in consideration of the wind direction. to change the orientation of the blade.

For example, each of the plurality of blades is configured to rotate in a direction performing a downwind category in response to a determination that the target movement direction coincides with a wind direction, and in response to a determination that the target movement direction is opposite to the wind direction. In response, it can be configured to turn in a direction that performs a wind category. In FIG. 10 , when the wind direction is (right → left), the blade is rotated in the direction of performing the downwind category in the first part 1010, and in the direction of performing the upwind category in the second part 1030. Blades can rotate. In the first joint part 1020 and the second joint part 1030, the blades may be rotated to maximize power according to the target movement direction according to the position of each blade.

According to one aspect of the present invention, each blade may be configured in the same form as a sail of a sailing yacht. Each blade may be provided with a support, and a thin film in the form of a sail may be configured to be held by the support. Therefore, the wind power generation system according to one aspect of the present invention can be configured with significantly reduced equipment costs compared to conventional wind power generators having large rotary blades. The sail-shaped thin film may be formed of a tent material such as hemp cloth or cotton cloth, or a synthetic fiber such as Tetron or a polymer fusion material may be used.

Meanwhile, as described above, in relation to Bernoulli's principle and/or the principle of adjusting the traveling direction of a sailing yacht, it is possible to deform each of the blades 30 to have a shape that maximizes power in a target moving direction. For example, according to Bernoulli's theorem, by increasing the gradient on one side of the blade and making it larger than the gradient on the other side, changing the air flow rate on both sides of the blade will result in a flow from one side of the blade to the opposite side. It can be configured to generate power.

In one exemplary embodiment, each of the plurality of blades may be composed of a material having flexibility, has a plurality of air pockets, and selectively changes the air filling amount in a specific air pocket among the plurality of air pockets. As a result, it is possible to implement a shape in which the blade has power in a desired direction under a predetermined wind condition. For changing the air charge, an air pump can be used, for example.

In another embodiment, a blade in the form of a thin film without a separate air pocket can be controlled by a support in the form of a lattice whose angle can be changed in units of segments, and the wind given by changing the amount of rotation in units of each lattice. It may be configured to deform the blade into a shape that maximizes power in a desired direction of movement under conditions.

Meanwhile, according to one aspect of the present invention, rotation of each blade may be performed based on a rotational axis perpendicular to the ground, for example. 7 is a cross-sectional view of a blade support according to one side. As shown in FIG. 7, the support of each blade may include an upper support 31 configured to support a sail-shaped thin film and a lower support 32 to which the upper support 31 is rotatably coupled. there is. The lower support 32 provides a cavity through which the blade rotation shaft 35 coupled to the upper support 31 can pass. The blade rotation shaft 35 is connected to the motor shaft 34, rotates the upper support by rotating based on the rotational force from the motor 33, and can adjust the orientation of the sail-shaped thin film in a desired direction. .

On the other hand, Figure 8 is an exemplary view of a highly separated blade according to one aspect. In the wind power generation system according to one aspect of the present invention, the size of a suitable blade for maximizing power generation efficiency may be quite large, and the direction of the wind may be different depending on the altitude. Therefore, even when the wind direction is different depending on the altitude, in order to maximize the power of the blade 30 in the target moving direction, the blade has a first part 37a and a second part 37b divided according to the altitude. and a third part 37c, including a first joint 38a, a second joint 38b, and a third joint 38c, by configuring each joint part to be rotatable, respectively. The orientation of the sail-shaped thin film included in the field may be set differently. That is, each of the plurality of blades 30 includes a first partial blade and a second partial blade divided in the height direction, and the first partial blade and the second partial blade are configured to be rotatable independently of each other, It can be rotated to maximize the power in the target movement direction of the blade 30 based on the information about the wind direction at the height at which the first part blade and the second part blade are respectively disposed.

Acquisition of positional information, wind direction information, etc. for determining the target movement direction of the blades can be achieved by employing any of the conventional sensor systems, and a control system for determining and changing the orientation of the blades can also be achieved. Any of the conventional control systems can be selected.

For example, information about the position of each of the plurality of blades in the loop is obtained from at least one of a plurality of position identification signal generators provided in the loop by a position signal receiving device provided in each of the plurality of blades. It can be obtained by receiving a location identification signal of. In another aspect, position information of each blade may be determined by a positioning system such as GPS. The target movement direction according to the position of the blade may be determined according to table information stored in a database, or may be configured to be calculated by the computing device in real time based on each position and loop shape. Meanwhile, information on the wind direction may be obtained from a wind direction sensor provided in each of the plurality of blades, and accurate information on the wind direction for each blade may be used. The control system that performs calculations such as orientation determination may be configured such that a separate computing device or processor is provided for each blade, or an integrated control system configured to transmit and receive information to and from each blade is provided so that the integrated control system is It can also be configured to perform control for each blade.

Referring back to FIG. 2 , the wind power generation system 100 according to an embodiment of the present invention may include a plurality of nacelles. For example, the nacelle 40 may include a generator having a generator center shaft gear 45-1, and a separate nacelle including an additional generator including a generator center shaft gear 45-2 is further provided. It could be.

Meanwhile, depending on the type of wind power generator, the generator provided in the nacelle 40 may be configured to have a predetermined target rotational speed. Alternatively, it may be required to adjust the target rotational speed as needed.

In this regard, each of the plurality of blades 30 may be configured such that the installation position relative to the movable body 20 is changeable, and the distance between the blades 30 may be adjusted accordingly. In addition, as described above, each of the blades 30 is configured to be slidable on the rail 10, and the movable body 20 may be configured in the form of a chain connecting each blade 30. Even in this case, the combination of the movable body 20 and the blade 30 can be configured in a form that can be readjusted. 9 is a coupling relationship diagram of a rail, a movable body, and a blade according to an aspect. As shown in FIG. 9, a plurality of blades 30 may be provided so as to be slidably movable on the rail 10, and the movable body 20 interlocks each of the blades 30, but the coupling position is readjusted. It can be provided in any possible form. However, the coupling relationship between the rail, the movable body, and the blade in FIG. 9 is an exemplary form, and various embodiments configured to slide the movable body 20 and/or the blade 30 on the rail 10 may be employed. can

10 is a top view of a wind power generation system according to an aspect, and FIG. 11 is a top view of a wind power generation system with adjustable blade spacing. In terms of adjusting the rotational speed of the generator's central rotating shaft, it is possible to control the moving speed of the blades. As shown in FIG. 11 , the rail may include a straight section 1110 and curved sections 1120-1 and 1120-2, and the plurality of blades are curved sections more than when they are located in the straight section 1110. When located at (1120-1, 1120-2), it can be configured to be arranged at a narrower interval.

On the other hand, in the wind power generation system according to an embodiment of the present invention, as illustrated in FIG. 2 above, the rail 10 may be configured to form a loop, and is formed inside the loop to provide a shorter movement path than the loop. further comprising an inner loop that does, wherein the generator is configured to have a predetermined target rotational speed, and the generator is configured to achieve a rotational speed closer to the target rotational speed, based on the information about the wind speed, of the loop and the inner loop. It may be configured to rotate in conjunction with the movement of at least one of the moving body and the blade.

More specifically, FIG. 13 is an exemplary view of a wind power generation system capable of gear change. As shown in FIG. 13 , a wind power generation system according to an embodiment of the present invention may include a loop 1310, a first inner loop 1320, and a second inner loop 1330. The first inner loop 1320 is configured to have a shorter travel path than the loop 1310, and the second inner loop 1330 is configured to have a shorter travel path than the first inner loop 1320. Even at the same wind speed, the loop 1310, the first inner loop 1320 and the second inner loop 1330 can be configured to have different moving speeds. As described above, since the generator may be configured to have a target rotational speed, it may be configured to selectively rotate in conjunction with a loop capable of providing the rotational speed most suitable for the target rotational speed of the generator according to the wind speed. For example, as shown in FIG. 13 , the generator center rotation shaft 1340 can be connected with the first rotation interlock shaft 1311 for the loop 1310 via the first rotation belt 1341, and the second The second rotation about the first inner loop 1320 can be connected with the interlocking shaft 1321 through the rotation belt 1342, and the third rotation about the second inner loop 1330 through the third rotation belt 1343. It can be connected with the interlocking shaft 1331. Each of the first rotation belt 1341 to the third rotation belt 1343 may be configured to turn on/off with the generator center rotation shaft 1340, so that the first rotation belt 1341 to the third rotation belt 1341 Any one of the belts 1343 may be selectively interlocked with the rotational axis 1340 of the generator center. However, the embodiment shown in FIG. 13 is exemplary, and a configuration in which one of a plurality of loops is selected to rotate the central rotational axis of the generator can be achieved through various embodiments, such as a gear box.

Here, information about wind speed may be obtained from a wind speed sensor. The wind speed sensor may be provided singly, or may be installed for each loop or for each blade to calculate the expected moving speed of each loop according to each wind speed.

Meanwhile, in the wind power generation system according to an embodiment of the present invention, in a situation where normal operation of the wind power generation system is not guaranteed, such as when a typhoon occurs, measures for protecting the blades may be required. In this regard, for example, a hangar for storing the blades may be installed, the blades may be fastened together, or the blades may be folded toward the ground to protect the blades.

14 is an exemplary view of a hangar constructed separately. As shown in FIG. 14, the wind power generation system according to an embodiment of the present invention provides a hangar 1430 in which a plurality of blades are stored, a branch point 1410 included in a rail, and a movement path from the branch point to the hangar A storage rail 1420 may be further included, and the plurality of blades 30 may be configured to be stored in the hangar 1430 via the branch point 1410 and the storage rail 1420. As described above, the coupling relationship of the movable body 20 and/or blade 30 to the rail 10 may be implemented in various embodiments, and the blade 30 itself is capable of sliding on the rail 10. If configured, the blades 30 are moved from the branch point 1410 on the rail 10 to the storage rail 1420 at the time when protection measures are required, and are slid along the storage rail 1420 to form a hangar 1430. can be stored in In another embodiment, the movable body 20 slides on the rail 10, and the blade 30 may be provided so that the installation position on the movable body 20 can be changed. In this embodiment, a part of the roof of the movable body 20 is configured to be detachable, and at the time when a blade protection measure is required, a part of the loop of the movable body 20 is separated and the storage rail 1420 via the branch point 1410. It can be moved so as to extend to the hangar 1430 along the . Since the installation position of the blades on the movable body 20 can be changed, they can be moved on the movable body 20 extending along the containment rail 1420 and stored in the hangar 1430 .

15 is an exemplary view of a hangar built on rails. As shown in FIG. 15, the wind power generation system according to an embodiment of the present invention further includes a hangar 1530 configured to pass through the rail 10, and a plurality of blades 30 pass through the rail 10. It may also be configured to move along and be stored in the hangar 1530. Even in the embodiment illustrated by FIG. 15 , as in FIG. 14 , the blades 30 may be moved to the hangar 1530 in various ways according to the coupling relationship between the movable body and/or the blades and the rail.

16 is an exemplary view of a fastening form between blades. As shown in FIG. 16 , a plurality of blades of a blade 1630-1 to a blade 1630-2 may be mutually coupled when protective measures against typhoons are required.

According to one aspect, each of the plurality of blades may include a fastening means to be coupled with an adjacent blade when the distance between the plurality of blades is minimized. That is, as a result of the fastening between adjacent blades, all of the plurality of blades are coupled, so that resistance to typhoons can be improved.

According to another aspect, the plurality of blades include a first blade 1630-1 located at the leftmost side and a second blade 1630-2 located at the most right side when the distance between the plurality of blades is minimized, The first blade 1630-1 and the second blade 1630-2 each have a fastening means, and the fastening means of the first blade and the fastening means of the second blade are mutually fastened so that the plurality of blades are coupled. may be configured. In addition, a configuration in which a plurality of blades are coupled through various embodiments is possible.

17 is an exemplary view of a blade that can be folded in the direction of the ground. As shown in FIG. 17 , each of the plurality of blades may be configured to be foldable toward the ground. The blades, which are normally located at the normal position (1730) and generate power based on wind energy, are folded to a position adjacent to the ground (1740) when protective measures are required, such as a typhoon risk, to minimize the influence of wind. can

On the other hand, it is possible to configure the wind power generation system according to an embodiment of the present invention in the form of a wind farm capable of generating large amounts of power. In relation to this, FIG. 18 is an exemplary view of a multi-rail arrangement having concentricity, and FIG. 19 is an exemplary view of a stacked multi-rail arrangement. As shown in FIG. 18 , the first loop 1810, the second loop 1820, and the third loop 1830 are arranged to have different movement lengths while having concentricity, so that space utilization can be improved. Alternatively, as shown in FIG. 19 , the first loop 1810, the second loop 1820, and the third loop 1830 are sequentially stacked in the vertical direction to improve space utilization. 18 and 19 may be implemented in combination.

On the other hand, although the rails are shown in a completely horizontal form on the ground in the drawings, a significant level of curvature may be applied to the rails depending on the topography, and it is also possible to implement a rail in the form of a number of curves rather than straight lines. do. In the present invention, the "horizontal direction" should be understood to include all directions having an approximate inclination other than the vertical direction as well as the complete horizontal direction as described above.

<Second Embodiment>

20 is a conceptual diagram of a wind power generation system according to a second embodiment of the present invention. As shown in FIG. 20, a wind power generation system 2000 according to an embodiment of the present invention includes a rail 2010, a moving body 2020, a plurality of blades 2030, a combination body 2050, and a nacelle equipped with a generator. (nacelle) (2040).

The rail 2010 can provide a movement path in a horizontal direction along which the plurality of movable bodies 2020 can slide and move. As described above, the horizontal direction may be understood as a movement path roughly along the ground or water surface as well as a complete horizontal direction in a mathematical sense. In the embodiment shown through FIG. 20, it is illustrated as providing a movement path so that the movable body 2020 slides on the rail 2010, but as shown in FIG. 1 or 2, for example, the rail 2010 The rail 2010 may have various design forms capable of providing a movement path along which the movable body 2020 can move by sliding, including a shape providing a movement path on the side of the movable body 2020 . As shown in FIG. 20 , the rail 2010 according to an embodiment of the present invention may be installed on the ground or installed through a support to provide a horizontal movement path for moving bodies 2020 .

The plurality of movable bodies 2020 may be configured to slide and move according to a movement path provided by the rail 2010 . Here, each of the plurality of movable bodies 2020 may include a blade 2030 installed on each of the plurality of movable bodies to provide power for movement of each of the plurality of movable bodies based on energy according to wind. That is, each movable body 2020 can slide and move according to the movement path provided by the rail 2010 according to the power of the blade 2030 based on wind.

In other words, the plurality of blades 2030 may be installed on the movable body 2020 to provide power for movement of the movable body 2020 based on wind energy. That is, when the wind blows, the energy provided by the wind acts on the blades 2030 and the blades 2030 and the movable body 2020 to which these blades are connected move. In the embodiment shown in FIG. 20 , it is illustrated that the movable body 2020 contacts the rail 2010 and the blade 2030 is installed on the movable body 2020, but the rail 2010, the movable body 2020 and the blade 2030 ) The installation form and structure of the various modifications can be employed.

As shown in FIG. 20 , an assembly 2050 that is fastened to an upper end of a blade provided in each of a plurality of movable bodies and moves based on power provided by the blade may be provided. In one aspect, the combination body 2050 may have an integral shape as shown in FIG. 20, and in another aspect, it may be in the form of a chain having a plurality of segmented structures. Also, according to the embodiment, the combination body 2050 may be made of a material having flexibility.

Referring back to FIG. 20 , a nacelle 2040 equipped with a generator may be disposed adjacent to the assembly 2050 . According to one aspect, the generator may be a generator that generates power according to the rotation of the generator central shaft gear 2045 coupled to the generator central rotation shaft, and the central rotation shaft of the generator rotates in conjunction with the movement of the assembly 2050 can be configured to 20 shows a configuration in which the rotational axis of the center of the generator rotates in association with the movement of the combination body 2050 exemplarily.

In this regard, as described above in connection with the first embodiment, FIG. 3 shows a power transmission structure between a blade and/or a movable body and a generator central rotation shaft according to the first aspect, and FIG. 4 shows a blade according to the second aspect and/or a power transmission structure between a movable body and a generator center rotation axis. In this regard, the power transmission structure of FIGS. 3 and 4 can also be employed for the power transmission structure between the assembly 2050 of the second embodiment and the generator central rotation shaft.

For example, as shown in FIG. 3 , the generator may have a generator center axis of rotation 45c and a circular toothed gear 45 coupled to the generator center axis of rotation 45c, and the combination (2050 in FIG. 20 ) ) is provided with a plurality of gear teeth on the surface facing the generator, and as the gear teeth move in engagement with the gear teeth 45a of the circular tooth gear 45 according to the movement of the assembly 2050, the generator center rotating shaft 45c moves. It can be configured to rotate.

In a similar vein, the features of the present invention described below through the first embodiment and related drawings can also be applied to the second embodiment. In the following description, the reference numerals of the rail and the movable body of the first embodiment are described, but those skilled in the art will be able to easily apply them to the second embodiment according to the corresponding description.

12 is an exemplary view of the arrangement of the central shaft of the generator. As shown in FIG. 12, the central axis of the generator may have various embodiments in relation to the rail. According to one aspect, in an embodiment in which the rail 10 and the movable body 20 form a loop as shown in FIG. 12, the generator center rotation shafts 1210 and 1220 may be located outside the loop, and the loop may be located inside the In addition, the rotation of the generator center rotation shafts 1210 and 1220 may be directly interlocked with the movement of the assembly 2050, or may be configured to interlock rotationally by providing an intermediate means such as the generator center rotation shaft 1230. The wind power generation system according to an embodiment of the present invention further includes a power transmission shaft 1231 that rotates in association with the movement of the combination body 2050, and includes a rotary pulley provided on the power transmission shaft 1231 and a generator of the generator. A rotating pulley provided on the central rotating shaft 1230 may be configured to rotate in conjunction with the rotating belt 1233 . Rotating belt 1233 may be configured as a conveyor belt or chain, for example.

Meanwhile, referring to FIGS. 1 and 2 , in the wind power generation system according to an embodiment of the present invention, the rail 10 may be configured to form a loop. According to one aspect, in the second embodiment, the rail 2010 may further include an upper frame supported by a plurality of upper frame supports, the upper frame movably holding the combination body 2050 to move the blades 2030 ) can be configured to improve the standing stability of the

Since the rails 10 and 2010 are formed as loops, the moving path of the plurality of blades and/or the movable body may have a circulating structure. Here, each of the plurality of blades 2030 moves in a target direction based on the information about the direction of the target movement and the information about the direction of the wind determined according to the position of each of the plurality of blades 2030 in the loop. It can be configured to rotate adaptively to maximize power in that direction.

* 101 According to another aspect, each of the plurality of blades 2030 is made of a material having flexibility and has a plurality of air pockets, and the target movement determined according to the position of each of the plurality of blades in the loop It may be configured to be deformed into a shape that maximizes power in a target movement direction by controlling the amount of air charged in at least one of the plurality of air pockets based on the information about the direction and the information about the wind direction.

Regarding the target movement direction, it will be described in detail with reference to FIG. 10 . 10 is a top view of a wind power generation system according to one aspect; As shown in FIG. 10, according to one embodiment of the present invention, the loop formed by the rail 10 includes, for example, a first part 1010 providing a movement path in the first direction, A second part 1030 providing a movement path in an opposite second direction, a first joint part 1020 providing a movement path from the first part to the second part and movement from the second part to the first part It can include a second joint portion 1040 providing a pathway. For example, the blades may be configured to move clockwise within the loop, and thus the target movement direction of the blades in the first part 1010 may be the (right → left) direction in FIG. 10, and the first joint part The target movement direction of the blades at 1020 depends on the extent to which the blades move from the first portion 1010 to the second portion 1030, in the (right → left) direction, in the (down → up) direction, and then again. It gradually changes in the (left → right) direction. Meanwhile, the target movement direction of the blades in the second part 1030 is determined in the (left → right) direction, and the target movement direction of the blades in the second joint part 1040 indicates that the blades move in the second part 1030. Depending on the degree of movement to the first part 1010, it gradually changes in the (left → right) direction, in the (up → down) direction, and again in the (right → left) direction. That is, the target moving direction of the blades may be determined differently according to the position of each blade in the loop.

When the target movement direction of each blade is determined, each blade is adaptively rotated so that the orientation of each blade is changed to maximize the power of each blade in the target movement direction based on the wind direction information. can do. For example, rotation of each of the plurality of blades may be performed based on a rotational axis perpendicular to the ground.

For example, each of the plurality of blades is configured to rotate in a direction performing a downwind category in response to a determination that the target movement direction coincides with a wind direction, and in response to a determination that the target movement direction is opposite to the wind direction. In response, it can be configured to turn in a direction that performs a wind category. In FIG. 10 , when the wind direction is (right → left), the blade is rotated in the direction of performing the downwind category in the first part 1010, and in the direction of performing the upwind category in the second part 1030. Blades can rotate. In the first joint part 1020 and the second joint part 1030, the blades may be rotated to maximize power according to the target movement direction according to the position of each blade.

According to one aspect of the present invention, each blade may be configured in the same form as a sail of a sailing yacht. Each blade may be provided with a support, and a thin film in the form of a sail may be configured to be held by the support. Therefore, the wind power generation system according to one aspect of the present invention can be configured with significantly reduced equipment costs compared to conventional wind power generators having large rotary blades. The sail-shaped thin film may be formed of a tent material such as hemp cloth or cotton cloth, or a synthetic fiber such as Tetron or a polymer fusion material may be used.

Meanwhile, as described above, in relation to Bernoulli's principle and/or the principle of adjusting the traveling direction of a sailing yacht, it is possible to deform each of the blades 30 to have a shape that maximizes power in a target moving direction. For example, according to Bernoulli's theorem, by increasing the gradient on one side of the blade and making it larger than the gradient on the other side, changing the air flow rate on both sides of the blade will result in a flow from one side of the blade to the opposite side. It can be configured to generate power.

In one exemplary embodiment, each of the plurality of blades may be composed of a material having flexibility, has a plurality of air pockets, and selectively changes the air filling amount in a specific air pocket among the plurality of air pockets. As a result, it is possible to implement a shape in which the blade has power in a desired direction under a predetermined wind condition. For changing the air charge, an air pump can be used, for example.

In another embodiment, a blade in the form of a thin film without a separate air pocket can be controlled by a support in the form of a lattice whose angle can be changed in units of segments, and the wind given by changing the amount of rotation in units of each lattice. It may be configured to deform the blade into a shape that maximizes power in a desired direction of movement under conditions.

Meanwhile, according to one aspect of the present invention, rotation of each blade may be performed based on a rotational axis perpendicular to the ground, for example. 7 is a cross-sectional view of a blade support according to one side. As shown in FIG. 7, the support of each blade may include an upper support 31 configured to support a sail-shaped thin film and a lower support 32 to which the upper support 31 is rotatably coupled. there is. The lower support 32 provides a cavity through which the blade rotation shaft 35 coupled to the upper support 31 can pass. The blade rotation shaft 35 is connected to the motor shaft 34, rotates the upper support by rotating based on the rotational force from the motor 33, and can adjust the orientation of the sail-shaped thin film in a desired direction. .

On the other hand, Figure 8 is an exemplary view of a highly separated blade according to one aspect. In the wind power generation system according to one aspect of the present invention, the size of a suitable blade for maximizing power generation efficiency may be quite large, and the direction of the wind may be different depending on the altitude. Therefore, even when the wind direction is different depending on the altitude, in order to maximize the power of the blade 30 in the target moving direction, the blade has a first part 37a and a second part 37b divided according to the altitude. and a third part 37c, including a first joint 38a, a second joint 38b, and a third joint 38c, by configuring each joint part to be rotatable, respectively. The orientation of the sail-shaped thin film included in the field may be set differently. That is, each of the plurality of blades 30 includes a first partial blade and a second partial blade divided in the height direction, and the first partial blade and the second partial blade are configured to be rotatable independently of each other, It can be rotated to maximize the power in the target movement direction of the blade 30 based on the information about the wind direction at the height at which the first part blade and the second part blade are respectively disposed.

Acquisition of positional information, wind direction information, etc. for determining the target movement direction of the blades can be achieved by employing any of the conventional sensor systems, and a control system for determining and changing the orientation of the blades can also be achieved. Any of the conventional control systems can be selected.

For example, information about the position of each of the plurality of blades in the loop is obtained from at least one of a plurality of position identification signal generators provided in the loop by a position signal receiving device provided in each of the plurality of blades. It can be obtained by receiving a location identification signal of. In another aspect, position information of each blade may be determined by a positioning system such as GPS. The target movement direction according to the position of the blade may be determined according to table information stored in a database, or may be configured to be calculated by the computing device in real time based on each position and loop shape. Meanwhile, information on the wind direction may be obtained from a wind direction sensor provided in each of the plurality of blades, and accurate information on the wind direction for each blade may be used. The control system that performs calculations such as orientation determination may be configured such that a separate computing device or processor is provided for each blade, or an integrated control system configured to transmit and receive information to and from each blade is provided so that the integrated control system is It can also be configured to perform control for each blade.

Referring back to FIG. 2 , the wind power generation system 100 according to an embodiment of the present invention may include a plurality of nacelles. For example, the nacelle 40 may include a generator having a generator center shaft gear 45-1, and a separate nacelle including an additional generator including a generator center shaft gear 45-2 is further provided. It could be.

Meanwhile, depending on the type of wind power generator, the generator provided in the nacelle 40 may be configured to have a predetermined target rotational speed. Alternatively, it may be required to adjust the target rotational speed as needed.

In relation to this, in the second embodiment, the combination body 2050 and each of the plurality of blades 2030 may be movably engaged to adjust a distance between the plurality of blades. Here, according to one aspect, the combination body 2050 may be configured in the form of a chain connecting each blade 2030 . Even in this case, the combination of the combination body 2050 and the blade 2030 can be configured in a readjustable form.

10 is a top view of a wind power generation system according to an aspect, and FIG. 11 is a top view of a wind power generation system with adjustable blade spacing. In terms of adjusting the rotational speed of the generator's central rotating shaft, it is possible to control the moving speed of the blades. As shown in FIG. 11 , the rail may include a straight section 1110 and curved sections 1120-1 and 1120-2, and the plurality of blades are curved sections more than when they are located in the straight section 1110. When located at (1120-1, 1120-2), it can be configured to be arranged at a narrower interval.

Meanwhile, the wind power generation system according to an embodiment of the present invention may be configured such that the rail 2010 forms a loop, and further includes an inner loop formed inside the loop to provide a shorter movement path than the loop, The generator is configured to have a predetermined target rotational speed, and is interlocked with the movement of any one combination of the loop and the inner loop to achieve a rotational speed closer to the target rotational speed based on information about the wind speed. It can be configured to rotate.

More specifically, FIG. 13 is an exemplary view of a wind power generation system capable of gear change. As shown in FIG. 13 , a wind power generation system according to an embodiment of the present invention may include a loop 1310, a first inner loop 1320, and a second inner loop 1330. The first inner loop 1320 is configured to have a shorter travel path than the loop 1310, and the second inner loop 1330 is configured to have a shorter travel path than the first inner loop 1320. Even at the same wind speed, the loop 1310, the first inner loop 1320 and the second inner loop 1330 can be configured to have different moving speeds. As described above, since the generator may be configured to have a target rotational speed, it may be configured to selectively rotate in conjunction with a loop capable of providing the rotational speed most suitable for the target rotational speed of the generator according to the wind speed. For example, as shown in FIG. 13 , the generator center rotation shaft 1340 can be connected with the first rotation interlock shaft 1311 for the loop 1310 via the first rotation belt 1341, and the second The second rotation about the first inner loop 1320 can be connected with the interlocking shaft 1321 through the rotation belt 1342, and the third rotation about the second inner loop 1330 through the third rotation belt 1343. It can be connected with the interlocking shaft 1331. Each of the first rotation belt 1341 to the third rotation belt 1343 may be configured to turn on/off with the generator center rotation shaft 1340, so that the first rotation belt 1341 to the third rotation belt 1341 Any one of the belts 1343 may be selectively interlocked with the rotational axis 1340 of the generator center. However, the embodiment shown in FIG. 13 is exemplary, and a configuration in which one of a plurality of loops is selected to rotate the central rotational axis of the generator can be achieved through various embodiments, such as a gear box.

Here, information about wind speed may be obtained from a wind speed sensor. The wind speed sensor may be provided singly, or may be installed for each loop or for each blade to calculate the expected moving speed of each loop according to each wind speed.

Meanwhile, in the wind power generation system according to an embodiment of the present invention, in a situation where normal operation of the wind power generation system is not guaranteed, such as when a typhoon occurs, measures for protecting the blades may be required. In this regard, for example, a hangar for storing the blades may be installed, the blades may be fastened together, or the blades may be folded toward the ground to protect the blades.

14 is an exemplary view of a hangar constructed separately. As shown in FIG. 14, the wind power generation system according to an embodiment of the present invention provides a hangar 1430 in which a plurality of blades are stored, a branch point 1410 included in a rail, and a movement path from the branch point to the hangar A storage rail 1420 may be further included, and the plurality of blades 30 may be configured to be stored in the hangar 1430 via the branch point 1410 and the storage rail 1420. When the plurality of movable bodies 2020 are configured to be slidably movable on the rail 2010, the movable bodies 2020 having blades 2030 at the time when protection measures are required are stored at the branch point 1410 on the rail 2010 1420, and slides along the storage rail 1420 to be stored in the hangar 1430.

15 is an exemplary view of a hangar built on rails. As shown in FIG. 15, the wind power generation system according to an embodiment of the present invention further includes a hangar 1530 configured to pass through the rail 10, and a plurality of blades 30 pass through the rail 10. It may also be configured to move along and be stored in the hangar 1530. In the second embodiment, a plurality of movable bodies 2020 having blades 2030 may move along rails 2010 and be stored in a hangar.

16 is an exemplary view of a fastening form between blades. As shown in FIG. 16 , a plurality of blades of a blade 1630-1 to a blade 1630-2 may be mutually coupled when protective measures against typhoons are required.

According to one aspect, each of the plurality of blades may include a fastening means to be coupled with an adjacent blade when the distance between the plurality of blades is minimized. That is, as a result of the fastening between adjacent blades, all of the plurality of blades are coupled, so that resistance to typhoons can be improved.

According to another aspect, the plurality of blades include a first blade 1630-1 located at the leftmost side and a second blade 1630-2 located at the most right side when the distance between the plurality of blades is minimized, The first blade 1630-1 and the second blade 1630-2 each have a fastening means, and the fastening means of the first blade and the fastening means of the second blade are mutually fastened so that the plurality of blades are coupled. may be configured. In addition, a configuration in which a plurality of blades are coupled through various embodiments is possible.

<Third Embodiment>

21 is a conceptual diagram of a wind power generation system according to a third embodiment of the present invention. As shown in FIG. 21, a wind power generation system 2100 according to an embodiment of the present invention includes a rail 2110, a moving body 2120, a plurality of blades 2130, and a nacelle 2140 equipped with a generator. ) may be included.

The rail 2110 can provide a movement path in a horizontal direction along which the plurality of movable bodies 2120 can slide and move. As described above, the horizontal direction may be understood as a movement path roughly along the ground or water surface as well as a complete horizontal direction in a mathematical sense. In the embodiment shown through FIG. 21, it is illustrated as providing a movement path so that the movable body 2120 slides on the rail 2110, but as shown in FIG. 1 or 2, for example, the rail 2110 The rail 2110 may have various design shapes capable of providing a movement path along which the movable body 2120 can slide and move, including a shape providing a movement path on the side of the movable body 2120 . As shown in FIG. 21 , the rail 2110 according to an embodiment of the present invention may be installed on the ground or through a support to provide a horizontal movement path of the movable bodies 2120 .

The plurality of movable bodies 2120 may be configured to slide and move according to a movement path provided by the rail 2110 . Here, each of the plurality of movable bodies 2120 may include a blade 2130 installed on each of the plurality of movable bodies to provide power for movement of each of the plurality of movable bodies based on energy according to wind. That is, each movable body 2120 can slide and move along a movement path provided by the rail 2110 according to the power of the blade 2130 based on wind.

In other words, the plurality of blades 2130 may be installed on the movable body 2120 to provide power for movement of the movable body 2120 based on wind energy. That is, when the wind blows, the energy provided by the wind acts on the blades 2130 and the blades 2130 and the movable body 2120 to which these blades are connected move. In the embodiment shown in FIG. 21 , it is illustrated that the movable body 2120 contacts the rail 2110 and the blade 2130 is installed on the movable body 2120, but the rail 2110, the movable body 2120 and the blade 2130 ) The installation form and structure of the various modifications can be employed.

Referring back to FIG. 21 , a nacelle 2140 equipped with a generator may be disposed adjacent to the movable body 2120 and/or the blade 2130 . According to one aspect, the generator may be a generator that generates power according to the rotation of the generator central axis gear 2145 coupled to the generator central axis of rotation, the central axis of rotation of the generator is the movable body 2120 and the blades 2130 It may be configured to rotate in conjunction with at least one movement. 21 exemplifies a configuration in which the generator center rotation shaft rotates in association with the movement of the movable body 2120. Relatedly, in the exemplary embodiment of FIG. 21 , a power transmission rod 2125 may be provided on a surface of the movable body 2120 facing the generator.

More specifically, FIG. 22 shows a power transmission structure between a movable body and a central shaft of a generator in the embodiment of FIG. 21 . As shown in FIG. 22, the generator has a generator center axis of rotation 2145c and a circular toothed gear 2145a coupled to the generator center axis of rotation 2145c, for example facing the generator of the movable body 2120. A blade power transmission rod 2125 may be provided on the side, and the blade power transmission rod 2125 moves and acts on the gear tooth mountain 2145a formed on the generator center shaft gear 2145 to rotate the generator center rotation axis ( 2145c) may be configured to rotate. Unlike shown in FIG. 22 , a power transmission rod may be provided on the side of the blade 2130 facing the generator to induce rotation of the central rotational shaft 2145c.

In a similar sense, the features of the present invention described below through the first embodiment and related drawings can also be applied to the third embodiment. In the following description, reference numerals of the rail and the movable body of the first embodiment will be described, but those skilled in the art will be able to easily apply the third embodiment according to the corresponding description.

12 is an exemplary view of the arrangement of the central shaft of the generator. As shown in FIG. 12, the central axis of the generator may have various embodiments in relation to the rail. According to one aspect, in an embodiment in which the rail 10 and the movable body 20 form a loop as shown in FIG. 2 or 12, the generator center rotation shafts 1210 and 1220 may be located outside the loop. , and may be located inside a loop. In addition, the rotation of the generator center rotation shafts 1210 and 1220 may be directly interlocked with the movement of the movable body and/or the blade, or may be configured to interlock with rotation by providing an intermediate means such as the generator center rotation shaft 1230. As shown in FIG. 12, the wind power generation system according to an embodiment of the present invention further includes a power transmission shaft 1231 that rotates in conjunction with the movement of at least one of the moving body 20 and the blade 30, , The rotation pulley provided on the power transmission shaft 1231 and the rotation pulley provided on the generator center rotation shaft 1230 of the generator may be configured to rotate in conjunction with each other according to the rotation belt 1233. The rotating belt 1233 may be configured in the form of a conveyor belt or chain, for example.

Meanwhile, referring to FIGS. 1 and 2 , in the wind power generation system according to an embodiment of the present invention, the rail 10 may be configured to form a loop. According to one aspect, in the third embodiment, the rail 2110 may further include an upper frame supported by a plurality of upper frame supports, and the upper frame supports the blades 2130 provided on the moving body 2120. It may also be configured to improve standing stability of the blades 2130 by remaining movable.

When the rails 10 and 2110 are formed as loops, the moving path of the plurality of blades and/or the movable body may have a circulation structure. Here, each of the plurality of blades 2130 moves in a target direction based on the information about the direction of the target movement and the information about the direction of the wind determined according to the position of each of the plurality of blades 2130 in the loop. It can be configured to rotate adaptively to maximize power in that direction.

According to another aspect, each of the plurality of blades 2130 is made of a material having flexibility and has a plurality of air pockets, and moves in a target movement direction determined according to the position of each of the plurality of blades in the loop. It may be configured to be deformed into a shape that maximizes power in a target movement direction by controlling the amount of air charged in at least one air pocket among a plurality of air pockets based on information about air pockets and wind direction.

Regarding the target movement direction, it will be described in detail with reference to FIG. 10 . 10 is a top view of a wind power generation system according to one aspect; As shown in FIG. 10, according to one embodiment of the present invention, the loop formed by the rail 10 includes, for example, a first part 1010 providing a movement path in the first direction, A second part 1030 providing a movement path in an opposite second direction, a first joint part 1020 providing a movement path from the first part to the second part and movement from the second part to the first part It can include a second joint portion 1040 providing a pathway. For example, the blades may be configured to move clockwise within the loop, and thus the target movement direction of the blades in the first part 1010 may be the (right → left) direction in FIG. 10, and the first joint part The target movement direction of the blades at 1020 depends on the extent to which the blades move from the first portion 1010 to the second portion 1030, in the (right → left) direction, in the (down → up) direction, and then again. It gradually changes in the (left → right) direction. Meanwhile, the target movement direction of the blades in the second part 1030 is determined in the (left → right) direction, and the target movement direction of the blades in the second joint part 1040 indicates that the blades move in the second part 1030. Depending on the degree of movement to the first part 1010, it gradually changes in the (left → right) direction, in the (up → down) direction, and again in the (right → left) direction. That is, the target moving direction of the blades may be determined differently according to the position of each blade within the loop.

When the target movement direction of each blade is determined, each blade is adaptively rotated so that the orientation of each blade is changed to maximize the power of each blade in the target movement direction based on the wind direction information. can do. For example, rotation of each of the plurality of blades may be performed based on a rotational axis perpendicular to the ground.

For example, each of the plurality of blades is configured to rotate in a direction performing a downwind category in response to a determination that the target movement direction coincides with a wind direction, and in response to a determination that the target movement direction is opposite to the wind direction. In response, it can be configured to turn in a direction that performs a wind category. In FIG. 10 , when the wind direction is (right → left), the blade is rotated in the direction of performing the downwind category in the first part 1010, and in the direction of performing the upwind category in the second part 1030. Blades can rotate. In the first joint part 1020 and the second joint part 1030, the blades may be rotated to maximize power according to the target movement direction according to the position of each blade.

According to one aspect of the present invention, each blade may be configured in the same form as a sail of a sailing yacht. Each blade may be provided with a support, and a thin film in the form of a sail may be configured to be held by the support. Therefore, the wind power generation system according to one aspect of the present invention can be configured with significantly reduced equipment costs compared to conventional wind power generators having large rotary blades. The sail-shaped thin film may be formed of a tent material such as hemp cloth or cotton cloth, or a synthetic fiber such as Tetron or a polymer fusion material may be used.

Meanwhile, as described above, in relation to Bernoulli's principle and/or the principle of adjusting the traveling direction of a sailing yacht, each of the blades 2130 may be deformed to have a shape that maximizes power in a target moving direction. For example, according to Bernoulli's theorem, by increasing the gradient on one side of the blade and making it larger than the gradient on the other side, changing the air flow rate on both sides of the blade will result in a flow from one side of the blade to the opposite side. It can be configured to generate power.

In one exemplary embodiment, each of the plurality of blades may be composed of a material having flexibility, has a plurality of air pockets, and selectively changes the air filling amount in a specific air pocket among the plurality of air pockets. As a result, it is possible to implement a shape in which the blade has power in a desired direction under a predetermined wind condition. For changing the air charge, an air pump can be used, for example.

In another embodiment, a blade in the form of a thin film without a separate air pocket can be controlled by a support in the form of a lattice whose angle can be changed in units of segments, and the wind given by changing the amount of rotation in units of each lattice. It may be configured to deform the blade into a shape that maximizes power in a desired direction of movement under conditions.

Meanwhile, according to one aspect of the present invention, rotation of each blade may be performed based on a rotational axis perpendicular to the ground, for example. 7 is a cross-sectional view of a blade support according to one side. As shown in FIG. 7, the support of each blade may include an upper support 31 configured to support a sail-shaped thin film and a lower support 32 to which the upper support 31 is rotatably coupled. there is. The lower support 32 provides a cavity through which the blade rotation shaft 35 coupled to the upper support 31 can pass. The blade rotation shaft 35 is connected to the motor shaft 34, rotates the upper support by rotating based on the rotational force from the motor 33, and can adjust the orientation of the sail-shaped thin film in a desired direction. .

Meanwhile, as another embodiment, a structure for reducing or increasing the area of an air pocket of a blade as well as rotation of the blade may be proposed. Such a structure may be particularly useful in preventing blade damage due to excessive air volume. For example, if an excessive amount of air that is difficult for the blade to handle is supplied to the blade, the blade may be damaged, and the damage to the blade may cause huge losses and reconstruction costs. The present invention will describe an embodiment capable of reducing the load of the blade due to excessive air volume supply by reducing the area of the air pocket formed through the sail-shaped thin film provided on the blade in order to prevent damage to the blade. . This embodiment will be described later through embodiments with reference to FIGS. 29 to 38 .

On the other hand, Figure 8 is an exemplary view of a highly separated blade according to one aspect. In the wind power generation system according to one aspect of the present invention, the size of a suitable blade for maximizing power generation efficiency may be quite large, and the direction of the wind may be different depending on the altitude. Therefore, even when the wind direction is different depending on the altitude, in order to maximize the power of the blade 30 in the target moving direction, the blade has a first part 37a and a second part 37b divided according to the altitude. and a third part 37c, including a first joint 38a, a second joint 38b, and a third joint 38c, by configuring each joint part to be rotatable, respectively. The orientation of the sail-shaped thin film included in the field may be set differently. That is, each of the plurality of blades 30 includes a first partial blade and a second partial blade divided in the height direction, and the first partial blade and the second partial blade are configured to be rotatable independently of each other, It can be rotated to maximize the power in the target movement direction of the blade 30 based on the information about the wind direction at the height at which the first part blade and the second part blade are respectively disposed.

Acquisition of positional information, wind direction information, etc. for determining the target movement direction of the blades can be achieved by employing any of the conventional sensor systems, and a control system for determining and changing the orientation of the blades can also be achieved. Any of the conventional control systems can be selected.

For example, information about the position of each of the plurality of blades in the loop is obtained from at least one of a plurality of position identification signal generators provided in the loop by a position signal receiving device provided in each of the plurality of blades. It can be obtained by receiving a location identification signal of. In another aspect, position information of each blade may be determined by a positioning system such as GPS. The target movement direction according to the position of the blade may be determined according to table information stored in a database, or may be configured to be calculated by the computing device in real time based on each position and loop shape. Meanwhile, information on the wind direction may be obtained from a wind direction sensor provided in each of the plurality of blades, and accurate information on the wind direction for each blade may be used. The control system that performs calculations such as orientation determination may be configured such that a separate computing device or processor is provided for each blade, or an integrated control system configured to transmit and receive information to and from each blade is provided so that the integrated control system is It can also be configured to perform control for each blade.

Referring back to FIG. 2 , the wind power generation system 100 according to an embodiment of the present invention may include a plurality of nacelles. For example, the nacelle 40 may include a generator having a generator center shaft gear 45-1, and a separate nacelle including an additional generator including a generator center shaft gear 45-2 is further provided. It could be.

Meanwhile, depending on the type of wind power generator, the generator provided in the nacelle 40 may be configured to have a predetermined target rotational speed. Alternatively, it may be required to adjust the target rotational speed as needed.

In the third embodiment, the plurality of movable bodies 2120 are each movable on the rail 2110, so that the distance between the movable bodies 2120 can be changed. 10 is a top view of a wind power generation system according to an aspect, and FIG. 11 is a top view of a wind power generation system with adjustable blade spacing. In terms of adjusting the rotational speed of the generator's central rotating shaft, it is possible to control the moving speed of the blades. As shown in FIG. 11 , the rail may include a straight section 1110 and curved sections 1120-1 and 1120-2, and the plurality of blades are curved sections more than when they are located in the straight section 1110. When located at (1120-1, 1120-2), it can be configured to be arranged at a narrower interval.

Meanwhile, in the wind power generation system according to an embodiment of the present invention, in a situation where normal operation of the wind power generation system is not guaranteed, such as when a typhoon occurs, measures for protecting the blades may be required. In this regard, for example, a hangar for storing the blades may be installed, the blades may be fastened together, or the blades may be folded toward the ground to protect the blades.

14 is an exemplary view of a hangar constructed separately. As shown in FIG. 14, the wind power generation system according to an embodiment of the present invention provides a hangar 1430 in which a plurality of blades are stored, a branch point 1410 included in a rail, and a movement path from the branch point to the hangar A storage rail 1420 may be further included, and the plurality of blades 30 may be configured to be stored in the hangar 1430 via the branch point 1410 and the storage rail 1420. As in the third embodiment, when the blades 2130 provided on each movable body 2120 are configured to be slidably movable on the rail 2110, the movable body equipped with the blade 2130 at the time when protection measures are required ( 2120) may be moved to the storage rail 1420 at the branch point 1410 on the rail 2110, slide along the storage rail 1420, and stored in the hangar 1430.

15 is an exemplary view of a hangar built on rails. As shown in FIG. 15, the wind power generation system according to an embodiment of the present invention further includes a hangar 1530 configured to pass through the rail 10, and a plurality of blades 30 pass through the rail 10. It may also be configured to move along and be stored in the hangar 1530. Even in the embodiment illustrated by FIG. 15 , as in FIG. 14 , the blades 30 may be moved to the hangar 1530 in various ways according to the coupling relationship between the movable body and/or the blades and the rail. In the third embodiment, a plurality of movable bodies 2120 may move along rails 2120 and be stored in a hangar.

16 is an exemplary view of a fastening form between blades. As shown in FIG. 16 , a plurality of blades of a blade 1630-1 to a blade 1630-2 may be mutually coupled when protective measures against typhoons are required.

According to one aspect, each of the plurality of blades may include a fastening means to be coupled with an adjacent blade when the distance between the plurality of blades is minimized. That is, as a result of the fastening between adjacent blades, all of the plurality of blades are coupled, so that resistance to typhoons can be improved.

According to another aspect, the plurality of blades include a first blade 1630-1 located at the leftmost side and a second blade 1630-2 located at the most right side when the distance between the plurality of blades is minimized, The first blade 1630-1 and the second blade 1630-2 each have a fastening means, and the fastening means of the first blade and the fastening means of the second blade are mutually fastened so that the plurality of blades are coupled. may be configured. In addition, a configuration in which a plurality of blades are coupled through various embodiments is possible.

17 is an exemplary view of a blade that can be folded in the direction of the ground. As shown in FIG. 17 , each of the plurality of blades may be configured to be foldable toward the ground. The blades, which are normally located at the normal position (1730) and generate power based on wind energy, are folded to a position adjacent to the ground (1740) when protective measures are required, such as a typhoon risk, to minimize the influence of wind. can

<Fourth Embodiment>

On the other hand, according to another aspect of the present invention, a rail part in the form of a railway is formed, and a movable body having at least one blade and capable of moving through a railroad based on wind power is moved on the rail part, and the movable body performs power generation by itself. After that, it is also possible to implement a wind power generation system capable of transmitting the generated power through the railroad.

23 is a conceptual diagram of a wind power generation system according to a fourth embodiment of the present invention.

As shown in FIG. 23 , the wind power generation system 3000 according to the fourth embodiment includes a rail unit 3010 providing a horizontal movement path and a plurality of rail units configured to move along the movement path of the rail unit 3010. It may include a moving body 3020 of.

The movable body 3020 may include at least one blade 3030 that provides power for movement of the movable body 3020 based on wind energy. In the embodiment shown in FIG. 23 , an example in which one blade 3030 is provided per movable body 3030 is shown, but the number of blades provided in the movable body 3020 may be plural, of course.

The movable body 3020 receives kinetic energy based on wind power provided by the blade 3030 . The movable body 3020 rotates in alignment with the rail 3010 based on the power provided by the blade 3030, thereby moving the movable body along the movement path of the rail 3010. (3022).

FIG. 24 is a cross-sectional view for explaining the matching structure of the rail unit 3010 and the movable body 3020 shown in FIG. 23 and the connection structure between them, the rotation shaft and the nacelle.

As shown in FIG. 24 , in the rail unit 3010, two rails are paired in parallel, and a support plate 3040 for fixing the rail pair is installed at the bottom. That is, the rail unit 3010 may be configured in the form of a railroad. Correspondingly, in order to move the movable body 3020, a matching groove 3024 for inserting the rail of the rail unit 3010 may be formed at the center of the outer circumferential surface of the wheel 3022 provided on the movable body 3020. Accordingly, the movable body 3020 is configured in a shape similar to a moving structure of a train and can move on the rail unit 3010 .

The number of wheels provided in the movable body 3020 may be plural. For example, in FIG. 24, an example having 4 wheels has been described, but the number of wheels 3022 provided in the movable body 3020 may vary depending on the implementation environment. can According to still other embodiments of the present invention, the rail unit may also be composed of one rail like a monorail, or may be composed of three or more rail pairs.

Inside the movable body 3020, a nacelle 3028 equipped with a generator for generating electric power based on the rotational force of the wheel 3022 is included. The rotation shaft of the generator provided in the nacelle 3028 is directly or indirectly connected to the rotation shaft 3026 of the wheel 3022, so that the generator generates power based on rotational force according to the rotation of the wheel 3022.

FIG. 25 is an exemplary diagram for illustratively explaining a path through which the power generated by the generator in FIG. 24 is transmitted to a transmission line.

23 and 25, the generator, the rotating shaft 3026 of the wheel, the wheel 3022, the rail unit 3010, and the transmission line 3080 for transmitting power to the outside are electrically connected, as shown in FIG. As shown in the power transmission path, the electric power generated from the generator in the nacelle 3028 and/or the electric power generated by the generator and stored in the capacitor in the nacelle drives the rotating shaft 3026, the wheels 3022, and the rail unit 3010. It can be transmitted through the transmission line 3080. To this end, at least a portion of each of the rotating shaft 3026, the wheel 3022, and the rail unit 3010 may be made of a conductor that can easily transmit electricity.

That is, according to the fourth preferred embodiment of the present invention, the movable body 3020 moving based on wind power on the rail 3010 in the form of a railroad generates its own power using the rotational force of the wheel 3022, and the generated power, Even without installation of a separate transmission line, a wind power generation system capable of transmitting to the outside can be implemented by utilizing the rail unit 3010 .

26 is a conceptual diagram for explaining a structure in which a wheel and a rail are interlocked in a gear shape to prevent slipping and facilitate control.

As shown in FIG. 26 , a plurality of first gear teeth 4012 are formed on a wheel contact surface, for example, an upper surface of the rail unit 4010 . Correspondingly, a plurality of second gear teeth that can be engaged with the gear teeth 4012 of the rail unit 4010 along the outer circumferential surface of the rail unit contact surface of the wheel 4022 of the moving body, for example, the rail unit matching groove. (4023) is formed.

In this case, unnecessary slip of the movable body can be prevented, and braking of the movable body becomes easy in an emergency. Therefore, it is possible to precisely and accurately control the movement of the moving body. The shape of the gear mountain can be of various shapes, such as a semicircle, a wavy shape, as well as a polygon such as a rectangle and a triangle, based on the cross section.

FIG. 27 is a perspective view for explaining a rail part forming a loop, and the rail part 3010 may form a loop in the same spirit as in the first to third embodiments described above.

Also, according to another embodiment of the present invention, the wind power generation system may include a plurality of rails to form a plurality of loops. 28 is a perspective view for explaining a plurality of rail parts constituting a plurality of loops, and as shown in FIG. 28, the plurality of rail parts include a first rail part 3010-1 forming a first loop and the first rail part 3010-1 A second rail portion 3010-2 forming a relatively small second loop disposed inside the first loop 3010-1 may be included.

On the other hand, in a similar sense, the features of the present invention described below through the first embodiment and related drawings can also be applied to the fourth embodiment. In the following description, the reference numerals of the rail and the movable body of the first embodiment are described, but those skilled in the art will be able to easily apply them to the fourth embodiment according to the corresponding description.

For example, referring to FIGS. 1 and 2 , in the wind power generation system according to an embodiment of the present invention, the rail 10 may be configured to form a loop, and to the same effect, the rail 10 in the fourth embodiment Portion 3010 can be configured to form a loop, as shown in FIGS. 27-28 . According to one aspect, in the fourth embodiment, the wind power generation system may further include an upper frame supported by a plurality of upper frame supports, and the upper frame moves the blades 3030 provided on the moving body 3020. It may also be configured to improve the standing stability of the blades 3030 by retaining the blades 3030.

When the rails 10 and 3010 are formed as loops, the movement path of the plurality of blades and/or the movable body may have a circulation structure. Here, each of the plurality of blades 3030 moves in a target direction based on the information about the direction of target movement and the information about the direction of the wind determined according to the position of each of the plurality of blades 3030 in the loop. It can be configured to rotate adaptively to maximize power in that direction.

According to another aspect, each of the plurality of blades 3030 is made of a material having flexibility and has a plurality of air pockets, and moves in a target movement direction determined according to the position of each of the plurality of blades in the loop. It may be configured to be deformed into a shape that maximizes power in a target movement direction by controlling the amount of air charged in at least one air pocket among a plurality of air pockets based on information about air pockets and wind direction.

Regarding the target movement direction, it will be described in detail with reference to FIG. 10 . 10 is a top view of a wind power generation system according to one aspect; As shown in FIG. 10, according to one embodiment of the present invention, the loop formed by the rail 10 (corresponding to the rail portion 3010 in the fourth embodiment) is, for example, a movement in the first direction. A first part 1010 providing a path, a second part 1030 providing a movement path in a second direction opposite to the first direction, a first joint providing a movement path from the first part to the second part portion 1020 and a second joint portion 1040 providing a travel path from the second portion to the first portion. For example, the blades may be configured to move clockwise within the loop, and thus the target movement direction of the blades in the first part 1010 may be the (right → left) direction in FIG. 10, and the first joint part The target movement direction of the blades at 1020 depends on the extent to which the blades move from the first portion 1010 to the second portion 1030, in the (right → left) direction, in the (down → up) direction, and then again. It gradually changes in the (left → right) direction. Meanwhile, the target movement direction of the blades in the second part 1030 is determined in the (left → right) direction, and the target movement direction of the blades in the second joint part 1040 indicates that the blades move in the second part 1030. Depending on the degree of movement to the first part 1010, it gradually changes in the (left → right) direction, in the (up → down) direction, and again in the (right → left) direction. That is, the target moving direction of the blades may be determined differently according to the position of each blade in the loop.

When the target movement direction of each blade is determined, each blade is adaptively rotated so that the orientation of each blade is changed to maximize the power of each blade in the target movement direction based on the wind direction information. can do. For example, rotation of each of the plurality of blades may be performed based on a rotational axis perpendicular to the ground.

For example, each of the plurality of blades is configured to rotate in a direction performing a downwind category in response to a determination that the target movement direction coincides with a wind direction, and in response to a determination that the target movement direction is opposite to the wind direction. In response, it can be configured to turn in a direction that performs a wind category. In FIG. 10 , when the wind direction is (right → left), the blade is rotated in the direction of performing the downwind category in the first part 1010, and in the direction of performing the upwind category in the second part 1030. Blades can rotate. In the first joint part 1020 and the second joint part 1030, the blades may be rotated to maximize power according to the target movement direction according to the position of each blade.

According to one aspect of the present invention, each blade may be configured in the same form as a sail of a sailing yacht. Each blade may be provided with a support, and a thin film in the form of a sail may be configured to be held by the support. Therefore, the wind power generation system according to one aspect of the present invention can be configured with significantly reduced equipment costs compared to conventional wind power generators having large rotary blades. The sail-shaped thin film may be formed of a tent material such as hemp cloth or cotton cloth, or a synthetic fiber such as Tetron or a polymer fusion material may be used.

Meanwhile, as described above, in relation to Bernoulli's principle and/or the principle of adjusting the traveling direction of a sailing yacht, it is possible to deform each of the blades 3030 to have a shape that maximizes power in a target moving direction. For example, according to Bernoulli's theorem, by increasing the gradient on one side of the blade and making it larger than the gradient on the other side, changing the air flow rate on both sides of the blade will result in a flow from one side of the blade to the opposite side. It can be configured to generate power.

In one exemplary embodiment, each of the plurality of blades may be composed of a material having flexibility, has a plurality of air pockets, and selectively changes the air filling amount in a specific air pocket among the plurality of air pockets. As a result, it is possible to implement a shape in which the blade has power in a desired direction under a predetermined wind condition. For changing the air charge, an air pump can be used, for example.

In another embodiment, a blade in the form of a thin film without a separate air pocket can be controlled by a support in the form of a lattice whose angle can be changed in units of segments, and the wind given by changing the amount of rotation in units of each lattice. It may be configured to deform the blade into a shape that maximizes power in a desired direction of movement under conditions.

Meanwhile, according to one aspect of the present invention, rotation of each blade may be performed based on a rotational axis perpendicular to the ground, for example. 7 is a cross-sectional view of a blade support according to one side. As shown in FIG. 7, the support of each blade may include an upper support 31 configured to support a sail-shaped thin film and a lower support 32 to which the upper support 31 is rotatably coupled. there is. The lower support 32 provides a cavity through which the blade rotation shaft 35 coupled to the upper support 31 can pass. The blade rotation shaft 35 is connected to the motor shaft 34, rotates the upper support by rotating based on the rotational force from the motor 33, and can adjust the orientation of the sail-shaped thin film in a desired direction. .

On the other hand, Figure 8 is an exemplary view of a highly separated blade according to one aspect. In the wind power generation system according to one aspect of the present invention, the size of a suitable blade for maximizing power generation efficiency may be quite large, and the direction of the wind may be different depending on the altitude. Therefore, even when the wind direction is different depending on the altitude, in order to maximize the power of the blade 30 in the target moving direction, the blade has a first part 37a and a second part 37b divided according to the altitude. and a third part 37c, including a first joint 38a, a second joint 38b, and a third joint 38c, by configuring each joint part to be rotatable, respectively. The orientation of the sail-shaped thin film included in the field may be set differently. That is, each of the plurality of blades 30 includes a first partial blade and a second partial blade divided in the height direction, and the first partial blade and the second partial blade are configured to be rotatable independently of each other, It can be rotated to maximize the power in the target movement direction of the blade 30 based on the information about the wind direction at the height at which the first part blade and the second part blade are respectively disposed.

Acquisition of positional information, wind direction information, etc. for determining the target movement direction of the blades can be achieved by employing any of the conventional sensor systems, and a control system for determining and changing the orientation of the blades can also be achieved. Any of the conventional control systems can be selected.

For example, information about the position of each of the plurality of blades in the loop is obtained from at least one of a plurality of position identification signal generators provided in the loop by a position signal receiving device provided in each of the plurality of blades. It can be obtained by receiving a location identification signal of. In another aspect, position information of each blade may be determined by a positioning system such as GPS. The target movement direction according to the position of the blade may be determined according to table information stored in a database, or may be configured to be calculated by the computing device in real time based on each position and loop shape. Meanwhile, information on the wind direction may be obtained from a wind direction sensor provided in each of the plurality of blades, and accurate information on the wind direction for each blade may be used. The control system that performs calculations such as orientation determination may be configured such that a separate computing device or processor is provided for each blade, or an integrated control system configured to transmit and receive information to and from each blade is provided so that the integrated control system is It can also be configured to perform control for each blade.

Meanwhile, depending on the shape of the wind power generator, the generator provided in the nacelle may be configured to have a predetermined target rotational speed. Alternatively, it may be required to adjust the target rotational speed as needed.

In the fourth embodiment, the plurality of movable bodies 3020 are each movable on the rail unit 3010, so that the distance between the movable bodies 3020 can be changed. For example, the connection unit 3050 connecting the movable bodies 3020 may be configured to variably adjust the distance between the movable bodies. 10 is a top view of a wind power generation system according to an aspect, and FIG. 11 is a top view of a wind power generation system with adjustable blade spacing. In terms of adjusting the rotational speed of the generator's central rotating shaft, it is possible to control the moving speed of the blades. As shown in FIG. 11 , the rail may include a straight section 1110 and curved sections 1120-1 and 1120-2, and the plurality of blades are curved sections more than when they are located in the straight section 1110. When located at (1120-1, 1120-2), it can be configured to be arranged at a narrower interval.

Meanwhile, in the wind power generation system according to an embodiment of the present invention, in a situation where normal operation of the wind power generation system is not guaranteed, such as when a typhoon occurs, measures for protecting the blades may be required. In this regard, for example, a hangar for storing the blades may be installed, the blades may be fastened together, or the blades may be folded toward the ground to protect the blades.

14 is an exemplary view of a hangar constructed separately. As shown in FIG. 14, the wind power generation system according to an embodiment of the present invention provides a hangar 1430 in which a plurality of blades are stored, a branch point 1410 included in a rail, and a movement path from the branch point to the hangar A storage rail 1420 may be further included, and the plurality of blades 30 may be configured to be stored in the hangar 1430 via the branch point 1410 and the storage rail 1420. As in the third embodiment, when the blades 2130 provided on each movable body 2120 are configured to be slidably movable on the rail 2110, the movable body equipped with the blade 2130 at the time when protection measures are required ( 2120) may be moved to the storage rail 1420 at the branch point 1410 on the rail 2110, slide along the storage rail 1420, and stored in the hangar 1430.

15 is an exemplary view of a hangar built on rails. As shown in FIG. 15, the wind power generation system according to an embodiment of the present invention further includes a hangar 1530 configured to pass through the rail 10, and a plurality of blades 30 pass through the rail 10. It may also be configured to move along and be stored in the hangar 1530. Even in the embodiment illustrated by FIG. 15 , as in FIG. 14 , the blades 30 may be moved to the hangar 1530 in various ways according to the coupling relationship between the movable body and/or the blades and the rail. In the fourth embodiment, a plurality of movable bodies 2120 may move along rails 2120 and be stored in a hangar.

17 is an exemplary view of a blade that can be folded in the direction of the ground. As shown in FIG. 17 , each of the plurality of blades may be configured to be foldable toward the ground. The blades, which are normally located at the normal position (1730) and generate power based on wind energy, are folded to a position adjacent to the ground (1740) when protective measures are required, such as a typhoon risk, to minimize the influence of wind. can

Meanwhile, as another embodiment of the present invention, a structure for reducing or increasing the area of the air pocket of the blade as well as the rotation of the blade will be described. Such a structure may be particularly useful in preventing blade damage due to excessive air volume. For example, if an excessive amount of air that is difficult for the blade to handle is supplied to the blade, the blade may be damaged, and the damage to the blade may cause huge losses and reconstruction costs. The present invention will describe an embodiment capable of reducing the load of the blade due to excessive air volume supply by reducing the area of the air pocket formed through the sail-shaped thin film provided on the blade in order to prevent damage to the blade. .

29 is a perspective view exemplarily illustrating the structure of a blade capable of variably adjusting the area of an air pocket.

Referring to FIG. 29 , a blade 5000 includes a sail-shaped thin film 5300 forming the air pocket receiving wind. The first side of the sail-shaped thin film 5300, for example, the left side, is supported by the rotation support 5200 as the first support, and the second side opposite to the first side, for example, the right side, is the second support, the movable support ( 5100) can be supported. That is, the thin film 5300 may form an air pocket capable of generating a moving force by receiving wind by being supported by the rotary support 5200 and the movable support 5100 .

The rotating support 5200 is fixed to one upper side of the fixing unit 5500 and can be rotated to wind or unwrap the thin film. For example, the rotary support 5200 shown in FIG. 29 is cylindrical and is configured to wind a thin film 5300 around an outer circumferential surface while rotating along a rotation axis. The rotational support 5200 may include a conventional component, such as a motor, to be able to rotate around a vertical axis.

The movable support part 5100 may be configured to be horizontally movable along the track 5400 provided on the other upper side of the fixing part 5500. For example, the movable support 5100 moves along the track 5400 toward the rotation support 5200 as the thin film 5300 is pulled toward the rotation support 5200 while the thin film is wound as the rotation support 5200 rotates. can

30 is a cross-sectional view illustrating a connection relationship between the movable support 5100 and the track 5400 by way of example. Referring to FIG. The lower end of the is fastened so that it can be moved horizontally while sliding without being separated.

Each blade provided in the wind power generation system, within the rail (eg, loop), based on the information about the target movement direction determined according to the position of each blade and the information about the direction of the wind, in the target movement direction It is configured to rotate adaptively to maximize power. In order to adjust the orientation of the blade 5000, in particular, the sail-shaped thin film 5300, a rotating part 5600 for rotating the fixing part 5500 is provided below the fixing part 5500.

As mentioned in the previous embodiments, the wind power generation system includes a rail providing a horizontal movement path, a movable body configured to slide and move along the movement path of the rail, and a movable body installed on the movable body to generate energy according to wind. It may include a plurality of blades that provide power for movement, and a nacelle equipped with a generator that generates power by rotating in conjunction with the movement of at least one of the movable body and blades.

In this embodiment, a control system for controlling the moving body and the blade may be provided. As mentioned above, the control system that performs operations such as orientation determination may be configured such that a separate computing device or processor is provided for each blade, or an integrated control system configured to transmit and receive information to and from each blade. Thus, the integrated control system may be configured to control each blade.

In this embodiment, the control system collects real-time air volume values received by the blades 5000 from sensors, extracts critical air volume values that the blades 5000 can safely withstand without being damaged, and extracts from a database (not shown) the real-time air volume values and critical air volume values. The area of the air pocket formed by the blade 5000 can be adjusted by comparing and analyzing air volume values and transmitting an area control signal to the blade 5000 .

The area control signal may include a first area control signal indicating to decrease the area of the air pocket and a second area control signal indicating to increase the area of the air pocket again in a state in which the area of the air pocket is reduced. there is. The first area control signal may refer to a signal for preventing damage to the blade by reducing the area of the air pocket when the real-time air volume received by the blade 5000 is greater than a set value.

In the blade 5000 receiving the first area control signal, in response to the first area control signal, the rotary support 5200 rotates in the direction of winding the sail-shaped thin film, and the movable support 5100 rotates the track ( 5400), the area of the sail-shaped thin film 5300 may be reduced by moving closer to the rotary support 5200. Here, the area of the thin film 5300 may mean an area in which the thin film can be spread to form an air pocket like a sail, that is, an area that can be substantially utilized for wind power generation.

31 is a perspective view illustrating a state in which the area of the sail-shaped thin film 5300 is reduced according to a first area control signal.

As shown in FIG. 31, as the rotary support 5200 rotates clockwise in response to the first area control signal, the thin film is wound around the outer circumferential surface of the rotary support 5200, and the movable support 5100 moves along the track. It can be seen that it has moved to a position close to the rotational support 5200 . Accordingly, most of the thin film 5300 is wound around the rotary support 5200, and the area of the thin film is reduced. That is, the area of the air pocket is reduced.

On the other hand, in the blade 5000, based on receiving the second area control signal, the rotating support part 5200 rotates in the direction of unwinding the sail-shaped thin film, and the moving support part 5100 rotates the track By moving away from the rotational support 5000 along 5400, the area of the sail-shaped thin film 5300 can be increased.

Meanwhile, according to another embodiment, the blade may constitute a first fixing part for fixing the lower part of the rotary support part and the movable support part, and a second fixing part for fixing the upper part of the rotary support part and the movable support part. That is, a second fixing part for fixing the upper part is added to the shape of the blade 5000 shown in FIG. 29 . In this case, one side of the lower end of the second fixing part provided at the upper part may fix the rotary support 5200, and a track for slidingly matching with the upper end of the movable support part 5100 may be formed on the other side of the lower end of the second fixing part. may be

32 is a perspective view illustrating a highly separable blade in which a plurality of blade units employing the blade structure shown in FIG. 29 are vertically connected.

As shown in FIG. 32, a plurality of blade units having a structure capable of reducing or increasing the area of an air pocket are connected in a vertical direction by the operation mechanism of the rotational support part and the movable support part described above to form a highly separated blade. can form

As mentioned above in the description with reference to FIG. 8, in the wind power generation system according to one aspect of the present invention, the size of a suitable blade for maximizing power generation efficiency may be quite large, and the wind direction is different depending on the altitude. can do. Therefore, even when the direction of the wind is different depending on the altitude, in order to maximize the power in the target moving direction of the blade, the blade is divided according to the altitude, the first blade unit (5000a), the second blade unit (5000b), and By having the third blade unit 5000c and configuring it to be independently rotatable, it is possible to set the orientation of the sail-shaped thin film included in each part differently.

For example, each of the plurality of blades is provided with a first blade unit (5000a) and a second blade unit (5000b) divided in the height direction, the first blade unit (5000a) and the second blade unit (5000b) Is configured to be rotatable independently of each other, and the first blade unit (5000a) and the second blade unit (5000b) based on the information on the direction of the wind at the height where each is disposed, the power in the target moving direction of the blade can be rotated to maximize

Acquisition of positional information, wind direction information, etc. for determining the target movement direction of the blades can be achieved by employing any of the conventional sensor systems, and a control system for determining and changing the orientation of the blades can also be achieved. Any of the conventional control systems can be selected.

33 is a perspective view illustratively illustrating a structure of a blade having a plurality of thin films and having an air pocket area variably adjustable by overlapping the plurality of thin films.

Referring to FIG. 33, the blade 6000 includes a sail-shaped first thin film 6300a forming a first air pocket receiving wind and a sail-shaped second thin film 6300b forming a second air pocket receiving wind. to provide

The first thin film supporters 6210 and 6220 support at least the upper and lower ends of the first thin film 6300a so that the first thin film 6300a forms a first air pocket, and the second thin film support parts 6230 and 6240 The second thin film 6300b supports at least the upper and lower ends of the second thin film 6300b to form a second air pocket.

The first thin film support parts 6210 and 6220 and the second thin film support parts 6230 and 6240 may be coupled to the frame part 6100 in the form of a hinge so that they can be folded or unfolded.

As mentioned in the previous embodiments, the wind power generation system includes a rail providing a horizontal movement path, a movable body configured to slide and move along the movement path of the rail, and a movable body installed on the movable body to generate energy according to wind. It may include a plurality of blades that provide power for movement, and a nacelle equipped with a generator that generates power by rotating in conjunction with the movement of at least one of the movable body and blades.

Here, each blade is adaptive to maximize the power in the target movement direction based on the information on the target movement direction and the wind direction determined according to the position of each blade in the rail, for example, the loop. It is configured to rotate with In the blade 6000 shown in FIG. 33, in particular, in order to adjust the orientation of the first thin film 6300a and the second thin film 6300b in the form of a sail, the frame part 6100 is rotated at the lower part of the frame part 6100. A rotating part 6400 is provided. The rotating part 6400 and the frame part 6100 may be formed on the same central axis.

In this embodiment, a control system for controlling the moving body and the blade may be provided. As mentioned above, the control system that performs operations such as orientation determination may be configured such that a separate computing device or processor is provided for each blade, or an integrated control system configured to transmit and receive information to and from each blade. Thus, the integrated control system may be configured to control each blade.

In this embodiment, the control system collects the real-time air volume value received by the blades 6000 from the sensor and extracts the critical air volume value that the blade 6000 can safely withstand without being damaged from a database (not shown) to obtain the real-time air volume value and the critical air volume value. The area of the air pocket formed by the blade 6000 can be adjusted by comparing and analyzing air volume values and transmitting an area control signal to the blade 6000 .

The area control signal may include a first area control signal indicating to decrease the area of the air pocket and a second area control signal indicating to increase the area of the air pocket. The first area control signal may refer to a signal for preventing damage to the blade 6000 by reducing the area of the air pocket when the real-time air volume received by the blade 6000 is greater than a set value.

The blade 6000 receiving the first area control signal controls the first thin film supports 6210 and 6220 and the second thin film supports 6230 and 6240 to control the first thin film 6300a and the second thin film 6300a. By folding at least a portion of the thin film 6300b to overlap, the total area of the plurality of air pockets formed in the blade 6000 may be reduced.

On the other hand, when the second area control signal is received, the blade 6000 controls the first thin film supports 6210 and 6220 and the second thin film supports 6230 and 6240 to control the first thin film 6300a and The total area of the plurality of a-pockets formed in the blade 6000 may be increased by spreading the second thin film 6300b so as not to overlap.

34 is a perspective view illustrating a state in which the total area of an air pocket is reduced according to a first area control signal;

As shown in FIG. 34, in response to a first area control signal, the first thin film supports 6210 and 6220 and the second thin film supports 6230 and 6240 are folded by a hinge, so that the first thin film ( 6300a) and at least a portion of the second thin film 6300b are folded to overlap each other, thereby reducing the total area of the plurality of air pockets formed in the blade 6000.

35 is a perspective view illustrating a highly separable blade in which a plurality of blade units employing the blade structure shown in FIG. 33 are vertically connected.

As shown in FIG. 35, a plurality of foldable blade units having a structure capable of reducing the total area of an air pocket by folding the plurality of thin films so as to overlap each other and having a plurality of thin films described above are connected in a vertical direction. A highly separable blade can be formed.

As mentioned above, in the wind power generation system according to one aspect of the present invention, the size of a suitable blade for maximizing power generation efficiency may be quite large, and the wind direction may be different depending on the altitude. Therefore, even when the wind direction is different depending on the altitude, in order to maximize the power of the blade in the target moving direction, the blade is divided according to the altitude, the first blade unit (6000a), the second blade unit (6000b), and By having the third blade unit 6000c and configuring it to be independently rotatable, it is possible to set the orientation of the sail-shaped thin film included in each part differently.

For example, each of the plurality of blades is provided with a first blade unit (6000a) and a second blade unit (6000b) divided in the height direction, the first blade unit (6000a) and the second blade unit (6000b) Is configured to be rotatable independently of each other, the first blade unit (6000a) and the second blade unit (6000b) based on the information on the direction of the wind at the height where each is disposed, the power in the target movement direction of the blade can be rotated to maximize

Acquisition of positional information, wind direction information, etc. for determining the target movement direction of the blades can be achieved by employing any of the conventional sensor systems, and a control system for determining and changing the orientation of the blades can also be achieved. Any of the conventional control systems can be selected.

36 illustrates a blade structure capable of reducing the area of an air pocket by folding a sail-shaped thin film based on a multi-folding structure as another embodiment. As shown in FIG. 36 , the blade 7000 can be folded multiple times, and the area of the air pocket can be reduced in response to an area control signal through multiple folding. In addition, it is also possible to form a highly separated blade by connecting the blade units of this multi-folding structure in a vertical direction so that they rotate independently.

37 is a flowchart for explaining a control operation of a wind power generation system including a blade for adjusting an area described in the embodiment with reference to FIGS. 29, 33, and 25 of the present invention, a rail providing a horizontal movement path. , A moving body configured to slide along the movement path of the rail, a plurality of blades installed on the moving body to provide power for movement of the moving body based on energy according to wind, movement of at least one of the moving body and the blades It can be performed by a control system of a wind power generation system including a nacelle equipped with a generator generating electric power by rotating in conjunction with the wind power generation system.

Referring to FIG. 37 , first, the control system may receive real-time air volume information from a sensor that measures a real-time air volume supplied to at least one blade (step: S11). Here, the real-time air volume information may include blade identification information for identifying blades and a real-time air volume value corresponding to the blade identification information.

Next, the control system may extract a critical air volume value corresponding to the blade identification information from the database (step: S12). The blade identification information may be pre-stored and managed in a critical air volume sound database corresponding to the blade identification information.

When the real-time air volume information and the critical air volume value corresponding to the blade are reported, the control system may adjust the area of the blade based on comparing the real-time air volume value corresponding to the blade and the critical air volume value (step: S13).

38 is a flowchart for explaining the detailed process of adjusting the area of the blade.

Referring to FIG. 38 , the control system may input a real-time air volume value and a threshold air volume value of a blade corresponding to a blade identifier (step: S21), and compare the extracted threshold air volume value with the real-time air volume value (step: S22). ).

Here, if the real-time air volume value is greater than or equal to the critical air volume value, it can be regarded that the blade is supplied with wind that is difficult for the blade to handle. A first area control signal indicating to reduce the area may be transmitted to the blade corresponding to the blade identification information (step: S23). For example, the first area control signal may be a first control signal instructing to reduce the area of an air pocket by winding a sail-shaped thin film, or by folding at least a portion of the plurality of thin films so as to overlap the total area of the air pocket. It may be a second control signal instructing to decrease.

In this way, the structure of reducing or increasing the area of the air pocket of the blade according to the amount of air supplied to the blade has been described. This embodiment may be useful in preventing blade damage due to excessive air volume. For example, if an excessive amount of air that is difficult for the blade to handle is supplied to the blade, the blade may be damaged, and the damage to the blade may cause huge losses and reconstruction costs. The present invention can reduce the load of the blade due to excessive air volume supply by reducing the area of the air pocket formed through the sail-shaped thin film provided in the blade in order to prevent damage to the blade.

Meanwhile, the rotation of the blade may be controlled according to the real-time air volume information to reduce the load received by the blade. For example, a wind power generation system includes a rail providing a horizontal movement path, a movable body configured to slide along the movement path of the rail, and power for moving the movable body based on energy according to wind installed in the movable body. In a wind power generation system including a nacelle equipped with a generator that generates power by rotating in conjunction with the movement of at least one of a plurality of blades, a movable body and blades providing Rails form a loop, and each of the blades determines the target movement direction based on information about a target movement direction determined according to a position of each of the plurality of blades in the loop and information about a wind direction. It can be configured to rotate adaptively to maximize the power to the.

The control unit receives real-time air volume information from a sensor that measures a real-time air volume supplied to at least one blade, and receives real-time air volume information and a critical air volume value corresponding to the blade. A rotation change control signal for controlling rotation in a direction in which an air volume is reduced may be transmitted.

The rotation change control signal may be a signal for preventing breakage of the blade by rotating the at least one blade in a direction in which the air volume received by the blade is reduced when the real-time air volume received by the at least one blade is greater than a set value. .

The real-time air volume information may include blade identification information for identifying blades and a real-time air volume value corresponding to the blade identification information. The control unit extracts a critical air volume value corresponding to the blade identification information from a database, compares the extracted critical air volume value with the real-time air volume value, and if the real-time air volume value is greater than or equal to the critical air volume value, the blade identification information The rotation change control signal may be transmitted to a corresponding blade.

<Experimental example>

The wind power generation system according to one aspect of the present invention can achieve improved power generation efficiency and reduced noise compared to conventional large-fan type wind power generators. For an experiment on power generation performance and noise generation of the wind power generation system according to an aspect of the present invention, a computer fluid dynamics model for the wind power generation system of the experimental example may be implemented under the following design conditions.

- A plurality of blades are sequentially arranged on a rail forming a loop to form driving energy based on wind

- Calculation area size: 300 x 250 x 200 (m ³ ) (same size as Jeju Gasiri Power Plant)

- Turbine airfoil (NACA0009 - sail shape): horizontal length = 90 (m) / vertical height = 120 (m) / maximum lift angle of incidence = 5.5 degree / distance between turbines = 150 (m) / moving speed on rail = 1.9 m/ s (based on generator maximum efficiency)

7 x 10⁷) / 풍황조건 = 0 (headwind), 45, 90 (crosswind), 180 (tailwind) 도- Wind conditions: Average wind speed = 11.4 m/s (Re _chord

7 x 10 ⁷ ) / wind conditions = 0 (headwind), 45, 90 (crosswind), 180 (tailwind) degrees

Computational fluid dynamics analysis was used to estimate the amount of power generation based on the energy generated by the moving blades of the model in a straight area on the rail, and compared to the efficiency of a conventional wind power system.

Regarding the selection/characteristics of a power generator for measuring output compared to existing wind turbines, a generator with an efficiency of 94.4% was evaluated as a standard. A hub (gear) is connected to the rail and configured to transmit torque to the central axis of the generator nacelle. The properties of the hub and nacelle were determined by a reference wind turbine of 5 MW NREL (see https://www.nrel.gov/docs/fy09osti/38060.pdf ).

As a method for measuring the output, the flow and vortex in the crosswind were considered. The generated power was estimated according to Equation 1 below.

는 블레이드의 이동 방향의 유닛 벡터를 나타낸다. here,

represents the unit vector of the moving direction of the blade.

The output calculation values for each wind direction are shown in Table 1 below.

wind direction X direction
strength Y direction
strength estimated
power 0ㅀ - headwind 338.0 KN -48.9 KN -87.7 KW 45ㅀ - headwind 245.3 kg 136.8 KN 245 KW 90ㅀ - crosswind 57.9 KN 166.2 kg 298.1 KW 180ㅀ - tailwind jeon -23.9 KN 1183 KN 2122 KW after -13.1 KN 725 KN 1300 KW

39 shows a comparison result of the output of an existing wind power generator and a wind power generation system according to an embodiment of the present invention. 39 shows the predicted power output compared to an existing wind generator (NREL's EMD turbine installed in California, USA (rotor diameter 77m)). In relation to this, it can be seen that individual turbines subjected to tailwind that generate maximum output show similar or higher output than general-purpose wind turbines. In addition, it was found that the pressure loss associated with noise generation was as small as 1/65 of that of conventional general-purpose turbines (260 Pa based on maximum pressure loss) (Reference: Li et al., 2020, Renewable Energy).

As a result of the hydrodynamic analysis, in the case of individual sail-shaped turbines, in the case of a wind direction close to the tailwind, similar or better output could be expected than that of the existing general-purpose wind turbine. When it is changed, there is a rapid decrease in output, so the overall output is evaluated as lower than that of the existing wind farm with the same facility capacity. However, when maximum power is received through the rotation of the blade adaptively according to the direction of the wind according to one aspect of the present invention, it is expected that the problem of reducing the output will be solved.

In addition, since the wind power generation system according to an embodiment of the present invention has fewer driving units and a simpler structure than conventional wind turbines, additional output can be expected to be improved by using a larger-scale turbine. Furthermore, it was found that the pressure loss directly related to the noise of wind power generation is 1/65th (based on maximum pressure loss) compared to existing wind turbines of the same size, which shows the strength of low-noise operation.

Although the above has been described with reference to the drawings and examples, it does not mean that the scope of protection of the present invention is limited by the drawings or examples, and those skilled in the art will understand the scope of the present invention described in the claims below. It will be understood that various modifications and changes may be made to the present invention without departing from the spirit and scope.

Although the present invention described above has been described based on a series of functional blocks, it is not limited by the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are made within the scope of the technical spirit of the present invention. That this is possible will be apparent to those skilled in the art.

Claims (22)

As a wind power generation system,
A rail providing a horizontal movement path;
a movable body configured to slide and move along the movement path of the rail;
A plurality of blades installed on the mobile body to provide power for movement of the mobile body based on energy according to wind;
a nacelle equipped with a generator generating electric power by rotating in conjunction with the movement of at least one of the moving body and the blade; and
Including a control unit for controlling the moving body and the blade,
Each of the blades includes a plurality of air pockets, and in response to an area control signal applied from the control unit, the area of the plurality of air pockets is adjusted by folding or unfolding the at least two air pockets so that they do not overlap. A wind power generation system, characterized in that.
The method of claim 1, wherein the blade,
A first thin film in the form of a sail forming a first air pocket receiving wind;
a second thin film in the form of a sail forming a second air pocket receiving wind;
A first thin film support for supporting the first thin film to form the first air pocket and a second thin film support for supporting the second thin film to form the second air pocket, wherein the first thin film support and the a frame unit for accommodating the second thin film support unit in the form of a hinge so that it can be folded or unfolded; and
and a rotation unit for rotating the frame unit to adjust orientations of the first thin film and the second thin film.
3. The method of claim 2, wherein the area control signal comprises:
a first area control signal indicating to reduce the area of the plurality of air pockets; and
And a second area control signal indicating to increase the area of the plurality of air pockets.
The method of claim 3, wherein the first area control signal is a signal for preventing damage to the blade by reducing the area of the plurality of air pockets when the real-time air volume received by the blade is greater than a set value. wind power system.
The method of claim 3, wherein the blade,
Based on receiving the first area control signal, the first thin film support portion and the second thin film support portion are controlled to fold at least a portion of the first thin film and the second thin film so as to overlap, and formed on the blade A wind power generation system characterized by reducing the total area of a plurality of air pockets.
The method of claim 3, wherein the blade,
Based on receiving the second area control signal, the first thin film support and the second thin film support are controlled to spread the first thin film and the second thin film so as not to overlap, thereby forming a plurality of blades formed on the blade. A wind power generation system characterized by increasing the total area of the apex.
The method of claim 1, wherein the blade includes a plurality of foldable air pocket units connected in a vertical direction,
Each of the foldable air pocket units is a wind power generation system, characterized in that configured to fold or unfold the plurality of air pockets to overlap each other.
The method of claim 1, wherein the rail forms a loop, and each of the blades is based on information about a target movement direction and information about a wind direction determined according to positions of each of the plurality of blades in the loop. The wind power generation system, characterized in that configured to rotate adaptively to maximize power in the target movement direction.
As a blade,
A nacelle equipped with a rail providing a horizontal movement path, a moving body configured to slide and move along the moving path of the rail, and a generator that generates power by rotating in conjunction with the movement of at least one of the moving body and the blade. ; And it is applied to a wind power generation system including a control unit for controlling the moving body and the blade,
A plurality of the blades are installed on the moving body to provide power for movement of the moving body based on energy according to wind,
Each of the blades includes a plurality of air pockets, and in response to an area control signal applied from the control unit, the area of the plurality of air pockets is adjusted by folding or unfolding the at least two air pockets so that they do not overlap. A blade characterized in that.
10. The method of claim 9, further comprising: a sail-shaped first thin film forming a first air pocket receiving wind;
a second thin film in the form of a sail forming a second air pocket receiving wind;
A first thin film support for supporting the first thin film to form the first air pocket and a second thin film support for supporting the second thin film to form the second air pocket, wherein the first thin film support and the a frame unit for accommodating the second thin film support unit in the form of a hinge so that it can be folded or unfolded; and
A blade characterized in that it comprises a rotation unit for rotating the frame unit to adjust the orientation of the first thin film and the second thin film.
11. The method of claim 10, wherein the area control signal comprises:
a first area control signal indicating to reduce the area of the plurality of air pockets; and
A blade characterized in that it comprises a second area control signal indicating to increase the area of the plurality of air pockets.
12. The method of claim 11, wherein the first area control signal is a signal for preventing breakage of the blade by reducing the area of the plurality of air pockets when the real-time air volume received by the blade is greater than a set value. blade.
The method of claim 11 , based on receiving the first area control signal, controlling the first thin film support and the second thin film support to fold at least a portion of the first thin film and the second thin film to overlap each other. , A blade, characterized in that for reducing the total area of a plurality of air pockets formed in the blade.
12. The method of claim 11 , based on receiving the second area control signal, controlling the first thin film support and the second thin film support so that the first thin film and the second thin film do not overlap, A blade characterized by increasing the total area of a plurality of apokets formed in the blade.
The method of claim 9, including a plurality of foldable air pocket units connected in a vertical direction,
Each of the foldable air pocket units is a blade, characterized in that configured to fold or unfold the plurality of air pockets to overlap each other.
10. The method of claim 9, wherein the rail forms a loop, and each of the blades is based on information about a target movement direction determined according to a position of each of the plurality of blades in the loop and information about a wind direction. The blade, characterized in that configured to rotate adaptively to maximize the power in the target movement direction.
A rail providing a horizontal movement path, a movable body configured to slide and move along the movement path of the rail, and a plurality of blades installed on the movable body to provide power for movement of the movable body based on energy according to wind- Each of the blades includes a plurality of air pockets-, a nacelle equipped with a generator generating electric power by rotating in conjunction with the movement of at least one of the moving body and the blade, and for controlling the moving body and the blade. As a control method of the blade in a wind power generation system including a control unit,
receiving an area control signal from the controller; and
and adjusting the areas of the plurality of air pockets by folding or unfolding at least two of the air pockets to overlap each other in response to the received area control signal.
The method of claim 17, wherein the blade,
A first thin film in the form of a sail forming a first air pocket receiving wind;
a second thin film in the form of a sail forming a second air pocket receiving wind;
A first thin film support for supporting the first thin film to form the first air pocket and a second thin film support for supporting the second thin film to form the second air pocket, wherein the first thin film support and the a frame unit for accommodating the second thin film support unit in the form of a hinge so that it can be folded or unfolded; and
and a rotation unit for rotating the frame unit in order to adjust orientations of the first thin film and the second thin film.
19. The method of claim 18, wherein the area control signal comprises:
a first area control signal indicating to reduce the area of the plurality of air pockets; and
And a second area control signal indicating to increase the area of the plurality of air pockets.
The method of claim 19, wherein the first area control signal is a signal for preventing damage to the blade by reducing the area of the plurality of air pockets when the real-time air volume received by the blade is greater than a set value. control method.
The method of claim 19, wherein the blade,
Based on receiving the first area control signal, the first thin film support portion and the second thin film support portion are controlled to fold at least a portion of the first thin film and the second thin film so as to overlap, and formed on the blade A control method characterized by reducing the total area of a plurality of air pockets.
The method of claim 19, wherein the blade,
Based on receiving the second area control signal, the first thin film support and the second thin film support are controlled to spread the first thin film and the second thin film so as not to overlap, thereby forming a plurality of blades formed on the blade. A control method characterized by increasing the total area of the apex.

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