Wind power generation system

Abstract

The present invention provides a wind power generation system. The wind power generation system includes: a track providing a horizontal movement path; a moving body sliding along the movement path of the track; blades provided on the moving body and providing power for the moving body based on wind energy; and a nacelle having a generator that rotates in conjunction with the movement of at least one of the moving body and the blades to generate electricity.

Description

Technical Field

[0001] The present invention relates to a power generation system, and more particularly, to a wind power generation system having a plurality of blades. Background Art

[0002] A wind turbine is a device that converts wind energy into electrical energy. Wind rotates the turbine's blades, generating electricity through the rotational force of the blades. Specifically, a wind turbine consists of three components: the blades, a transmission, and a generator. The blades are the device that converts wind energy into mechanical energy through rotation. The generator converts the mechanical energy generated by the blades into electrical energy.

[0003] Such wind power generation has attracted attention as a new energy source to replace existing fossil fuels. However, conventional blade-rotating wind turbines must enlarge the rotating blades to generate more electricity. However, the enlarged rotating blades generate noise in the surrounding area. Summary of the Invention

[0004] (Problem to be solved)

[0005] The purpose of the present invention to solve the above-mentioned problems is to provide a wind power generation system that rotates the rotating shaft of the generator by utilizing the movement of multiple blades and / or moving bodies that move along a moving path provided by a track, thereby solving the noise problem caused by the rotation of existing large rotating blades.

[0006] However, the problems to be solved by the present invention are not limited thereto, and various extensions can be made without departing from the spirit and scope of the present invention.

[0007] (Methods of solving the problem)

[0008] A wind power generation system according to an embodiment of the present invention for achieving the above-mentioned purpose may include: a track providing a horizontal moving path; a moving body sliding along the moving path of the track; blades provided on the moving body providing power for the movement of the moving body based on wind energy; and a nacelle having a generator, the generator rotating in conjunction with the movement of at least one of the moving body and the blades to generate electricity.

[0009] According to one aspect, the generator has a central rotating shaft of the generator and a circular sawtooth gear, and the circular sawtooth gear is connected to the central rotating shaft of the generator; a plurality of sawtooth mountains are provided on the surface of at least one of the moving body and blades facing the generator, and as at least one of the moving body and blades moves, the sawtooth mountains engage with the circular sawtooth gear and move, thereby causing the central rotating shaft of the generator to rotate.

[0010] According to one aspect, the wind power generation system also includes a transmission shaft, which rotates in conjunction with the movement of at least one of the moving body and the blades; the rotating pulley provided on the transmission shaft and the rotating pulley configured on the central rotating shaft of the generator can be rotated and linked through a rotating belt.

[0011] According to one aspect, the track forms a loop; each of the multiple blades can be adaptively rotated in the loop based on relevant information about the target movement direction and relevant information about the wind direction to maximize the power in the target movement direction, wherein the relevant information about the target movement direction is determined according to the position of each of the multiple blades.

[0012] According to one aspect, the rotation of each of the plurality of blades may be performed with the rotation axis being perpendicular to the ground.

[0013] According to one aspect, the track forms a loop; each of the multiple blades is made of a flexible material and has multiple air bags, and the air filling amount of at least one of the multiple air bags is controlled based on relevant information about the target moving direction and relevant information about the wind direction, thereby being variable to form a shape that maximizes the power in the target moving direction, wherein the relevant information about the target moving direction is determined according to the position of each of the multiple blades in the loop.

[0014] According to one aspect, the position information of each of the plurality of blades in the cycle can be acquired by receiving a position identification signal from at least one of the plurality of position identification signal generating devices configured in the cycle via a position signal receiving device respectively configured on the plurality of blades.

[0015] According to one aspect, the wind direction related information may be obtained from wind direction sensors respectively configured on the plurality of blades.

[0016] According to one aspect, each of the plurality of blades may rotate in a direction to perform downwind sailing in response to a determination that the target movement direction is consistent with a wind direction, and may rotate in a direction to perform upwind sailing in response to a determination that the target movement direction is opposite to the wind direction.

[0017] According to one aspect, each of the multiple blades has a first portion of blades and a second portion of blades divided in the height direction; the first portion of blades and the second portion of blades can rotate independently of each other; based on wind direction-related information at the heights at which the first portion of blades and the second portion of blades are respectively configured, they can adaptively rotate to maximize the power in the target moving direction.

[0018] According to one aspect, the loop formed by the track may include: a first part, providing a moving path in a first direction; a second part, providing a moving path in a second direction opposite to the first direction; a first transition part, providing a moving path from the first part to the second part; and a second transition part, providing a moving path from the second part to the first part.

[0019] According to one aspect, the wind power generation system also includes an internal loop, which is formed inside the loop to provide a moving path shorter than the loop; the generator has a pre-set target rotation speed, and based on wind speed-related information, the movement of at least one of the moving body and blades in any one of the loop and the internal loop can be rotated to achieve a rotation speed closer to the target rotation speed.

[0020] According to one aspect, the wind speed related information can be obtained from a wind speed sensor.

[0021] According to one aspect, the arrangement position of each of the plurality of blades with respect to the moving body can be changed.

[0022] According to one aspect, the track includes a straight section and a curved section; the plurality of blades may be spaced apart at a narrower interval when located in the curved section than when located in the straight section.

[0023] According to one aspect, the wind power generation system also includes: a storage reservoir for storing the multiple blades; a branch point included in the track; and a storage track providing a moving path from the branch point to the storage reservoir; the multiple blades can be stored in the storage reservoir through the branch point and the storage track.

[0024] According to one aspect, the wind power generation system further includes a storage reservoir, wherein the track is penetrated by the storage reservoir; the plurality of blades move along the track and can be stored in the storage reservoir.

[0025] According to an aspect, each of the plurality of blades may include a fastening tool to be coupled with an adjacent blade when a pitch between the plurality of blades is minimized by changing an arrangement position with respect to the moving body.

[0026] According to one aspect, the multiple blades include a first blade located on the leftmost side and a second blade located on the rightmost side when the spacing between the multiple blades is minimized by changing the setting position with respect to the moving body; the first blade and the second blade respectively have fastening tools, and the multiple blades can be combined by fastening the fastening tools of the first blade and the fastening tools of the second blade to each other.

[0027] According to one aspect, each of the plurality of blades is foldable toward the ground.

[0028] A wind power generation system according to an embodiment of the present invention for achieving the above-mentioned purpose may include: a track providing a horizontal moving path; a plurality of moving bodies sliding along the moving path of the track, each of the plurality of moving bodies having blades, the blades being respectively arranged on the moving bodies, providing power for the movement of the moving bodies based on wind energy; a coupling body fastened to the upper ends of the blades respectively arranged on the plurality of moving bodies, moving based on the power provided by the blades; and a nacelle having a generator, the generator rotating in conjunction with the movement of the coupling body to generate electricity.

[0029] According to one aspect, the generator has a central rotating shaft of the generator and a circular sawtooth gear, and the circular sawtooth gear is combined with the central rotating shaft of the generator; a plurality of sawtooth mountains are provided on the surface of the combination facing the generator, and as the combination moves, the sawtooth mountains engage with the circular sawtooth gear and move, thereby causing the central rotating shaft of the generator to rotate.

[0030] According to one aspect, the wind power generation system further includes a transmission shaft, which rotates in conjunction with the movement of the combination; the rotating pulley provided on the transmission shaft and the rotating pulley configured on the central rotating shaft of the generator can be rotated and linked through a rotating belt.

[0031] According to one aspect, the track forms a loop; each of the multiple blades adaptively rotates in the loop based on information related to the target movement direction and information related to the wind direction to maximize the power toward the target movement direction, wherein the information related to the target movement direction is determined according to the position of each of the multiple blades.

[0032] According to one aspect, the rotation of each of the plurality of blades may be performed with the rotation axis being perpendicular to the ground.

[0033] According to one aspect, the track forms a loop; each of the multiple blades is made of a flexible material and has multiple air bags, and the air filling amount of at least one of the multiple air bags is controlled based on relevant information about the target moving direction and relevant information about the wind direction, thereby being variable to form a shape that maximizes the power in the target moving direction, wherein the relevant information about the target moving direction is determined according to the position of each of the multiple blades in the loop.

[0034] According to one aspect, the position information of each of the plurality of blades in the cycle can be acquired by receiving a position identification signal from at least one of the plurality of position identification signal generating devices configured in the cycle via a position signal receiving device respectively configured on the plurality of blades.

[0035] According to one aspect, the wind direction related information may be obtained from wind direction sensors respectively configured on the plurality of blades.

[0036] According to one aspect, each of the plurality of blades may rotate in a direction to perform downwind sailing in response to a determination that the target movement direction is consistent with a wind direction, and may rotate in a direction to perform upwind sailing in response to a determination that the target movement direction is opposite to the wind direction.

[0037] According to one aspect, each of the multiple blades has a first portion of blades and a second portion of blades divided in the height direction; the first portion of blades and the second portion of blades can rotate independently of each other; based on wind direction-related information at the heights at which the first portion of blades and the second portion of blades are respectively configured, they can adaptively rotate to maximize the power in the target moving direction.

[0038] According to one aspect, the loop formed by the track may include: a first part, providing a moving path in a first direction; a second part, providing a moving path in a second direction opposite to the first direction; a first transition part, providing a moving path from the first part to the second part; and a second transition part, providing a moving path from the second part to the first part.

[0039] According to one aspect, the wind power generation system also includes an internal loop, which is formed inside the loop to provide a moving path shorter than the loop; the generator has a pre-set target rotation speed, and can rotate based on wind speed-related information in conjunction with the movement of the combination of the loop and any one of the internal loops to achieve a rotation speed closer to the target rotation speed.

[0040] According to one aspect, the wind speed related information can be obtained from a wind speed sensor.

[0041] According to one aspect, the combining body is movably fastened to the plurality of blades to adjust a distance between the plurality of blades.

[0042] According to one aspect, the track includes a straight section and a curved section; the plurality of blades may be spaced apart at a narrower interval when located in the curved section than when located in the straight section.

[0043] According to one aspect, the wind power generation system also includes: a storage reservoir for storing the multiple blades; a branch point included in the track; and a storage track providing a moving path from the branch point to the storage reservoir; the multiple blades can be stored in the storage reservoir through the branch point and the storage track.

[0044] According to one aspect, the wind power generation system further includes a storage reservoir, wherein the track is penetrated by the storage reservoir; the plurality of blades move along the track and can be stored in the storage reservoir.

[0045] According to an aspect, each of the plurality of blades may include a fastening tool to be coupled with an adjacent blade when a pitch between the plurality of blades is minimized by changing an arrangement position with respect to the moving body.

[0046] According to one aspect, the plurality of blades may include the first blade located at the leftmost side and the second blade located at the rightmost side when a pitch between the plurality of blades is minimized by changing an arrangement position with respect to the moving body.

[0047] According to one aspect, the first blade and the second blade each have a fastening tool, and the plurality of blades can be combined by fastening the fastening tool of the first blade and the fastening tool of the second blade to each other.

[0048] According to one aspect, the blade may have a horizontal length of 90 m and a vertical height of 120 m.

[0049] According to one aspect, the generator rotates in conjunction with the movement of the combined body of any one of the circulation and the inner circulation so that the movement speed of each of the moving bodies is close to 1.9 m / s.

[0050] A wind power generation system according to an embodiment of the present invention for achieving the above-mentioned purpose may include: a track providing a horizontal moving path; a plurality of moving bodies sliding along the moving path of the track, each of the plurality of moving bodies having blades, the blades being respectively arranged on the moving bodies, providing power for the movement of the moving bodies based on wind energy; and a nacelle having a generator, the generator rotating in conjunction with the movement of the plurality of moving bodies to generate electricity.

[0051] According to one aspect, the generator has a central rotating shaft of the generator and a circular sawtooth gear, and the circular sawtooth gear is connected to the central rotating shaft of the generator; there are multiple transmission rods on the surface of the multiple moving bodies facing the generator, and as the multiple moving bodies move, the transmission rods act on the sawtooth mountain of the circular sawtooth gear to rotate the central rotating shaft of the generator.

[0052] According to one aspect, the wind power generation system further includes a transmission shaft, which rotates in conjunction with the movement of the multiple moving bodies; the rotating pulley provided on the transmission shaft and the rotating pulley configured on the generator center rotating shaft of the generator can be rotated and linked through a rotating belt.

[0053] According to one aspect, the track forms a loop; each of the multiple blades adaptively rotates in the loop based on information related to the target movement direction and information related to the wind direction to maximize the power toward the target movement direction, wherein the information related to the target movement direction is determined according to the position of each of the multiple blades.

[0054] According to one aspect, the rotation of each of the plurality of blades may be performed with the rotation axis being perpendicular to the ground.

[0055] According to one aspect, the track forms a loop; each of the multiple blades is made of a flexible material and has multiple air bags, and the air filling amount of at least one of the multiple air bags is controlled based on relevant information about the target moving direction and relevant information about the wind direction, thereby being variable to form a shape that maximizes the power in the target moving direction, wherein the relevant information about the target moving direction is determined according to the position of each of the multiple blades in the loop.

[0056] According to one aspect, the position information of each of the plurality of blades in the cycle can be acquired by receiving a position identification signal from at least one of the plurality of position identification signal generating devices configured in the cycle via a position signal receiving device respectively configured on the plurality of blades.

[0057] According to one aspect, the wind direction related information may be obtained from wind direction sensors respectively configured on the plurality of blades.

[0058] According to one aspect, each of the plurality of blades may rotate in a direction to perform downwind sailing in response to a determination that the target movement direction is consistent with a wind direction, and may rotate in a direction to perform upwind sailing in response to a determination that the target movement direction is opposite to the wind direction.

[0059] According to one aspect, each of the multiple blades has a first portion of blades and a second portion of blades divided in the height direction; the first portion of blades and the second portion of blades can rotate independently of each other; based on wind direction-related information at the heights at which the first portion of blades and the second portion of blades are respectively configured, they can adaptively rotate to maximize the power in the target moving direction.

[0060] According to one aspect, the loop formed by the track may include: a first part, providing a moving path in a first direction; a second part, providing a moving path in a second direction opposite to the first direction; a first transition part, providing a moving path from the first part to the second part; and a second transition part, providing a moving path from the second part to the first part.

[0061] According to one aspect, the wind power generation system also includes: a storage reservoir for storing the multiple blades; a branch point included in the track; and a storage track providing a moving path from the branch point to the storage reservoir; the multiple blades can be stored in the storage reservoir through the branch point and the storage track.

[0062] According to one aspect, the wind power generation system further includes a storage reservoir, wherein the track is penetrated by the storage reservoir; the plurality of blades move along the track and can be stored in the storage reservoir.

[0063] According to one aspect, each of the plurality of blades may include a fastening tool configured to be coupled with an adjacent blade when a pitch between the plurality of blades is minimized by the plurality of movements.

[0064] According to one aspect, the multiple blades may include a first blade located on the leftmost side and a second blade located on the rightmost side when the spacing between the multiple blades is minimized by the movement of the multiple movements; the first blade and the second blade respectively have fastening tools, and the multiple blades can be combined by fastening the fastening tools of the first blade and the fastening tools of the second blade to each other.

[0065] According to one aspect, each of the plurality of blades is foldable toward the ground.

[0066] According to one aspect, the blade may have a horizontal length of 90 m and a vertical height of 120 m.

[0067] According to one aspect, each of the plurality of blades can be adaptively rotated so that the moving speed of each of the moving bodies is close to 1.9 m / s.

[0068] (Effects of the Invention)

[0069] The disclosed technology may have the following effects. However, this does not mean that a specific embodiment should include all or only the following effects, and therefore the scope of rights of the disclosed technology should not be understood as being limited thereto.

[0070] According to the wind power generation system of one embodiment of the present invention described above, the rotation axis of the generator is rotated by moving multiple blades and / or moving bodies along the moving path provided by the track, thereby solving the noise problem caused by the rotation of existing large rotating blades.

[0071] Furthermore, when constructing a wind farm that can generate a large amount of electricity, the space efficiency can be improved compared to conventional blade-rotating wind turbines, and construction costs can also be reduced.

[0072] Furthermore, the blades are configured to rotate in accordance with the wind direction, thereby enabling efficient power generation without being affected by changes in weather conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] Figure 1 This is a conceptual diagram of a wind power generation system according to an embodiment of the present invention.

[0074] Figure 2 It is a perspective view of a circulation-type wind power generation system according to one embodiment of the present invention.

[0075] Figure 3 A power transmission structure between the blades and / or the moving body and the central shaft of the generator according to the first aspect is shown.

[0076] Figure 4 A power transmission structure between the blades and / or the moving body and the central shaft of the generator according to the second aspect is shown.

[0077] Figure 5 This is a conceptual diagram of Bernoulli's theorem.

[0078] Figure 6 Shows the speed of a sailboat according to wind and sailing style.

[0079] Figure 7 is a cross-sectional view of a blade support frame according to one aspect.

[0080] Figure 8 is an exemplary diagram of a highly separated blade according to one aspect.

[0081] Figure 9 It is a diagram of the combined relationship between the track, the moving body and the blades according to one aspect.

[0082] Figure 10 is a top view of a wind power generation system according to one aspect.

[0083] Figure 11 It is a top view of a wind power generation system with adjustable blade pitch.

[0084] Figure 12 This is an example diagram of the configuration of the generator center shaft.

[0085] Figure 13 This is an example diagram of a wind power generation system with variable gears.

[0086] Figure 14 This is an example diagram of a separately built repository.

[0087] Figure 15 This is an example diagram of a repository being built on orbit.

[0088] Figure 16This diagram shows an example of how blades are fastened together.

[0089] Figure 17 This is an example diagram of a blade that can be folded toward the ground.

[0090] Figure 18 This diagram shows an example of a configuration of multiple concentric orbitals.

[0091] Figure 19 This diagram shows an example of a stacked multiple track configuration.

[0092] Figure 20 This is a conceptual diagram of a wind power generation system according to a second embodiment of the present invention.

[0093] Figure 21 This is a conceptual diagram of a wind power generation system according to a third embodiment of the present invention.

[0094] Figure 22 Shown in Figure 21 In the embodiment, a power transmission structure is provided between the moving body and the central shaft of the generator.

[0095] Figure 23 The figure shows the comparison results of the output power of a conventional wind turbine and a wind turbine generation system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0096] While the present invention is susceptible to various changes and embodiments, specific embodiments are illustrated in the drawings and will be described in detail.

[0097] However, this does not mean that the present invention is limited to a specific embodiment, but should be understood to include all changes, equivalents and even substitutes within the concept and technical scope of the present invention.

[0098] Terms such as "first," "second," and so on may be used to describe various components, but they do not limit those components. These terms are used solely to distinguish one component from another. For example, a first component may be named "second component," and similarly, a second component may be named "first component" without exceeding the scope of the present invention. The term "and / or" includes a combination of multiple related items or any one of the multiple related items.

[0099] When a component is described as being “connected” or “in contact with” another component, it should be understood that it can be directly connected or in contact with the other component, but other components may be present in between. Conversely, when a component is described as being “directly connected” or “directly in contact with” another component, it should be understood that no other components are present in between.

[0100] The terms used in this application are used only to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the text clearly indicates a different meaning. In this application, terms such as "including" or "having" should be understood to specify the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and do not preclude the presence or additional possibility of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0101] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by persons having ordinary knowledge in the art to which this invention belongs. Terms commonly used and defined in dictionaries should be interpreted as having the same meaning as in the relevant art and should not be interpreted in an idealized or overly formal sense unless otherwise explicitly defined in this application.

[0102] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, for easy understanding of the entire text, the same reference numerals are used for the same components in the drawings, and repeated descriptions of the same components are omitted.

[0103] As mentioned above, wind power generation has attracted attention as a new energy source to replace existing fossil fuels. However, conventional blade-rotating wind turbines require larger rotor blades to generate more power. However, this larger rotor blade size, in turn, creates noise in the surrounding area. To minimize the damage caused by this noise, some attempts have been made to locate wind turbines offshore. However, offshore installations increase construction costs, diminishing the economic viability of wind power generation, which is a major advantage, and can also pose significant environmental challenges.

[0104] To address the aforementioned issues, the present invention discloses a wind turbine generator system in one embodiment that utilizes the movement of multiple blades and / or a moving object along a path provided by a track to rotate the generator's rotary shaft, thereby resolving the noise issue caused by the rotation of conventional large rotor blades. The wind turbine generator system in one embodiment of the present invention will be described in more detail below with reference to the accompanying drawings.

[0105] (First embodiment)

[0106] Figure 1 is a conceptual diagram of a wind power generation system according to an embodiment of the present invention; Figure 2 FIG is a perspective view of a circulating wind power generation system according to an embodiment of the present invention. Figure 1 or Figure 2As shown, a wind power generation system 100 according to an embodiment of the present invention may include a track 10 , a moving body 20 , a plurality of blades 30 , and a nacelle 40 having a generator.

[0107] The track 10 can provide a sliding path for the moving body 20 and / or the plurality of blades 30. Figure 1 In the illustrated embodiment, the track 10 is shown as providing a moving path on the side of the moving body 20. However, the track 10 may have various design forms that can provide a moving path for the moving body 20 and / or the plurality of blades 30 to slide. For example, a train track or a single track may be used. Figure 1 As shown, the track 10 of one embodiment of the present invention is set on the ground or through a support frame to provide a horizontal moving path for the moving body 20 and / or the plurality of blades 30 .

[0108] The moving body 20 can slide along the moving path provided by the track 10. The plurality of blades 30 are provided on the moving body and can provide power for moving the moving body 20 based on wind energy. That is, when wind blows, the energy provided by the wind acts on the blades 30, so that the blades 30 and the moving body 20 connected to the blades move. Figure 1 In the illustrated embodiment, the moving body 20 is shown in contact with the rail 10 and a plurality of blades 30 are provided on the moving body 20. However, the rail 10, the moving body 20, and the blades 30 may be provided in various forms and structures. For example, in one aspect, the blades 30 may be made to slide on the rail 10, and the moving body 20 may function as a structure connecting the plurality of blades 30. In one aspect, as Figure 1 As shown, the moving body 20 can also be formed as one body, or can be a chain having a plurality of segmented structures. In addition, according to the embodiment, the moving body 20 can also be made of a material having flexibility.

[0109] Re-reference Figure 1 , a nacelle 40 having a generator may be arranged adjacent to the moving body 20 and / or the blades 30. According to one aspect, the generator may be a generator that generates electricity by rotating a generator center shaft gear 45 coupled to the generator center rotating shaft, and the generator center rotating shaft may rotate in conjunction with the movement of at least one of the moving body 20 and the blades 30. Figure 1 The structure in which the central rotation axis of the generator rotates in conjunction with the movement of the moving body 20 is exemplified.

[0110] Relatedly, Figure 3 The power transmission structure between the blade and / or the moving body and the central shaft of the generator according to the first aspect is shown; Figure 4 A power transmission structure between the blades and / or the moving body and the central shaft of the generator according to the second aspect is shown.

[0111] like Figure 3 As shown, the generator has a generator central rotating shaft 45c and a circular sawtooth gear 45, and the circular sawtooth gear 45 is coupled to the generator central rotating shaft 45c and has a plurality of sawtooth peaks 20a on the surface of at least one of the moving body 20 and the blades 30 facing the generator. As at least one of the moving body 20 and the blades 30 moves, the sawtooth peaks 20a engage with the sawtooth peaks 45a of the circular sawtooth gear 45 and move, thereby rotating the generator central rotating shaft 45c. Figure 3 Although the sawtooth peaks 20 a are provided on the moving body 20 as an example, the sawtooth peaks 20 a may also be provided on the surface of the blades 30 facing the generator.

[0112] Or, as Figure 4 As shown, for example, a blade drive rod 30a may be provided on the side of the blade 30 facing the generator, and when the blade drive rod 30a moves, it acts on the gear sawtooth mountain 45a formed on the central shaft gear 45 of the generator, thereby also rotating the central rotating shaft 45c of the generator. Figure 4 Different from the illustration, a transmission rod may be provided at a predetermined interval on the side of the moving body 20 facing the generator to cause the central rotating shaft 45c to rotate.

[0113] Figure 12 This is an example diagram for the configuration of the generator center axis. Figure 12 As shown, the generator center axis can have various embodiments in relation to the track. According to one aspect, as Figure 2 or Figure 12 As shown, in the embodiment in which the track 10 and the moving body 20 form a loop, the generator center rotating shafts 1210 and 1220 can be located outside the loop or inside the loop. In addition, the rotation of the generator center rotating shafts 1210 and 1220 can be directly linked to the movement of the moving body and / or blades, or can be rotated and linked with an intermediate tool such as the generator center rotating shaft 1230. Figure 12 As shown, the wind power generation system according to one embodiment of the present invention further includes a transmission shaft 1231. The transmission shaft 1231 rotates in conjunction with the movement of at least one of the moving body 20 and the blades 30. A rotating pulley disposed on the transmission shaft 1231 and a rotating pulley disposed on the generator center rotating shaft 1230 of the generator can be rotated and linked together via a rotating belt 1233. For example, the rotating belt 1233 can also be formed of a conveyor belt or a chain.

[0114] Re-reference Figure 2In a wind power generation system according to an embodiment of the present invention, the track 10 may form a loop. In one aspect, the track 10 may further include an upper frame 11 supported by a plurality of upper frame support brackets 13. The upper frame 11 movably holds the upper portion of the blade 30, thereby improving the upright stability of the blade 30.

[0115] By forming a loop with the track 10, the movement paths of the plurality of blades and / or the moving body can have a loop structure. Here, the plurality of blades 30 each adaptively rotate based on information related to the target movement direction and information related to the wind direction to maximize the power in the target movement direction, wherein the target movement direction is determined by the position of each of the plurality of blades 30.

[0116] According to another aspect, each of the plurality of blades 30 may be made of a flexible material and have a plurality of air pockets, and the air filling amount of at least one of the plurality of air pockets is controlled based on information related to a target movement direction and information related to a wind direction, and the plurality of blades 30 may be deformed into a shape that maximizes power in the target movement direction, wherein the target movement direction is determined according to the position of each of the plurality of blades in the cycle.

[0117] Regarding the target movement direction, refer to Figure 10 A more detailed explanation is given. Figure 10 FIG. 1 is a top view of a wind power generation system according to one aspect. Figure 10 As shown, according to one embodiment of the present invention, for example, a loop formed by the track 10 may include: a first portion 1010, providing a moving path in a first direction; a second portion 1030, providing a moving path in a second direction opposite to the first direction; a first transition portion 1020, providing a moving path from the first portion to the second portion; and a second transition portion 1040, providing a moving path from the second portion to the first portion. For example, the blade may be moved clockwise in the loop, so that Figure 10 In the first portion 1010, the target movement direction of the blade can be (right→left), and in the first transition portion 1020, the target movement direction of the blade gradually changes from (right→left) to (down→up) according to the extent of the blade's movement from the first portion 1010 to the second portion 1030, and then gradually changes back to (left→right). On the other hand, the target movement direction of the blade in the second portion 1030 is set to (left→right), and the target movement direction of the blade in the second transition portion 1040 gradually changes from (left→right) to (up→down) according to the extent of the blade's movement from the second portion 1030 to the first portion 1010, and then gradually changes back to (right→left). In other words, the target movement direction of the blade can be determined based on the position of each blade in the cycle.

[0118] If the target movement direction of each blade has been determined, each of the multiple blades can be adaptively rotated based on wind direction related information to change the direction of each blade, thereby maximizing the power of each blade toward the target movement direction.

[0119] Regarding maximizing the momentum towards the target based on wind direction, Figure 5 It is a conceptual diagram of Bernoulli’s theorem; Figure 6 The figure shows the speed of a sailboat according to the wind and sailing method. Figure 5 As shown, Bernoulli's theorem explains the phenomenon of lift generation by changing the speed of the airflow to generate a pressure difference. By applying Bernoulli's theorem, the blade direction is set according to the wind direction to maximize the power to move in the desired direction. In addition, Figure 6 The figure shows the speed of a sailboat according to the wind and sailing method. Figure 6 As shown, a sailboat can generate power by appropriately adjusting the direction of its sails, allowing it to sail in a desired direction even in the same wind direction. Based on a similar principle, in a wind power generation system according to one embodiment of the present invention, while determining the target movement direction based on the position of the blades, the wind direction can also be taken into account to rotate the blades and change their direction to maximize power in the target movement direction.

[0120] For example, each of the plurality of blades may rotate in a direction to perform downwind sailing in response to a determination that the target moving direction is consistent with the wind direction, and may rotate in a direction to perform upwind sailing in response to a determination that the target moving direction is opposite to the wind direction. Figure 10 In the embodiment, when the wind direction is (right to left), the blades are rotated in the direction of sailing with the wind in the first part 1010, and in the direction of sailing against the wind in the second part 1030. The blades are rotated in the first adapter part 1020 and the second adapter part 1040 according to the target movement direction determined by the positions of the blades to maximize power.

[0121] According to one aspect of the present invention, each blade can be configured in the shape of a sail, such as a sail on a sailboat. Each blade has a support frame that holds the sail-shaped membrane. Consequently, the wind power generation system according to one aspect of the present invention can be constructed at significantly lower equipment costs compared to conventional wind turbines with large rotor blades. The sail-shaped membrane can be formed from tent material such as linen or cotton, but synthetic fibers such as polyethylene terephthalate (TETRON) or polymer fusions can also be used.

[0122] On the other hand, as described above, in accordance with Bernoulli's theorem and / or the principle of sailboat steering, each blade 30 can be deformed into a shape that maximizes power in the target direction of movement. For example, according to Bernoulli's theorem, increasing the inclination of one side of the blade and making that inclination greater than the inclination of the other side can change the air flow speed on both sides of the blade, thereby generating power from a specific side of the blade to the other side.

[0123] In an exemplary embodiment, each of the plurality of blades may be formed of a flexible material and have a plurality of air pockets. The air filling volume of specific air pockets may be selectively varied, thereby achieving a blade having a dynamic shape in a desired direction under predetermined wind conditions. To vary the air filling volume, for example, an air pump may be used.

[0124] In another embodiment, a film-shaped blade without an additional air pocket can be controlled by a lattice-shaped support frame capable of changing the angle in segmented units, and the blade shape can be deformed into a shape that maximizes power in a desired direction under specific wind conditions by changing the rotation amount in each lattice unit.

[0125] On the other hand, according to an aspect of the present invention, the rotation of each blade is performed, for example, with the rotation axis perpendicular to the ground. Figure 7 FIG is a cross-sectional view of a blade support frame according to one aspect. Figure 7 As shown, the support frame for each blade may include an upper support frame 31 and a lower support frame 32. The upper support frame 31 supports the sail-shaped membrane, and the lower support frame 32 is rotatably coupled to the upper support frame 31. The lower support frame 32 has a hole through which a blade rotation shaft 35 coupled to the upper support frame 31 can pass. The blade rotation shaft 35 is connected to a motor shaft 34 and rotates based on the rotational force from the motor 33, thereby rotating the upper support frame and adjusting the direction of the sail-shaped membrane in a desired direction.

[0126] on the other hand, Figure 8This is an example diagram of a highly separated blade according to one aspect. In a wind power generation system according to one aspect of the present invention, the appropriate blade size for maximizing power generation efficiency can be quite large, and wind direction can vary depending on altitude. To maximize the power of blade 30 in a target direction of movement when wind direction varies with altitude, the blade comprises a first portion 37a, a second portion 37b, and a third portion 37c, each separated by altitude. Furthermore, the blade comprises a first transition point 38a, a second transition point 38b, and a third transition point 38c. By rotating each transition point, the orientation of the sail-shaped membrane in each portion can be set differently. Specifically, each of the plurality of blades 30 comprises a first portion and a second portion, each separated by altitude. The first and second portions are configured to rotate independently of each other and rotate based on wind direction information at the altitudes at which the first and second portions are located, thereby maximizing the power of blade 30 in the target direction of movement.

[0127] The acquisition of position information, wind direction-related information, etc. used to determine the target movement direction of the blade can be achieved by adopting any of the common sensor systems, and the control system used to determine and change the direction of the blade can also select any of the common control systems.

[0128] For example, the position information of each of the plurality of blades in the loop can be obtained by receiving a position identification signal from at least one of the plurality of position identification signal generating devices configured in the loop through a position signal receiving device respectively provided on the plurality of blades. On the other hand, the position information of each blade can be determined by a positioning system such as GPS. The target moving direction according to the blade position can be determined based on the table information stored in the database, or it can be calculated in real time by a computer device based on each position and the loop shape. On the other hand, wind direction-related information can also be obtained from wind direction sensors respectively provided on the plurality of blades to use accurate information on the wind direction of each blade. The control system that performs calculations such as determining the direction can be set to configure a computing device or processor separately for each blade, or to configure an integrated control system, which sends and receives information with each blade and also enables the integrated control system to perform control on each blade.

[0129] Re-reference Figure 2 In one embodiment of the present invention, a wind power generation system 100 may include multiple nacelles. For example, nacelle 40 may include a generator having a generator center shaft gear 45-1. Wind power generation system 100 may also include additional nacelles, each of which may additionally include a generator having a generator center shaft gear 45-2.

[0130] On the other hand, depending on the type of wind turbine, the generator disposed in the nacelle 40 may be configured to have a preset target rotational speed. Alternatively, the target rotational speed may be adjusted as needed.

[0131] In this regard, the plurality of blades 30 can be configured so that their respective positions relative to the moving body 20 can be changed, thereby adjusting the spacing between the blades 30. Furthermore, as described above, the blades 30 can each be configured to slide on the rails 10, and the moving body 20 can be configured as a chain connecting the blades 30. In this case, the connection between the moving body 20 and the blades 30 can be realized in a re-adjustable manner. Figure 9 This is a diagram showing the relationship between the track, the moving body and the blades. Figure 9 As shown, a plurality of blades 30 are slidably arranged on the rail 10, and the moving body 20 is linked to each blade 30, and can be configured in a form in which the connection position can be readjusted. However, Figure 9 The connection relationship among the track, the moving body and the blades is an example, and various embodiments in which the moving body 20 and / or the blades 30 can slide on the track 10 may be adopted.

[0132] Figure 10 is a top view of a wind power generation system according to one aspect; Figure 11 This is a top view of a wind turbine system with adjustable blade pitch. The speed of the blades can be controlled by adjusting the rotation speed of the central rotating shaft of the generator. Figure 11 As shown, the track may include a straight section 1110 and curved sections 1120 - 1 and 1120 - 2 . When the plurality of blades are located in the straight section 1110 , the blades may be spaced at a narrower interval than when they are located in the curved sections 1120 - 1 and 1120 - 2 .

[0133] On the other hand, as mentioned above Figure 2 As shown in the example, a wind power generation system of an embodiment of the present invention can form a loop of the track 10, and also includes an internal loop, wherein the internal loop is formed inside the loop and provides a moving path shorter than the loop; the generator has a preset target rotation speed, and is rotated based on wind speed-related information in conjunction with the movement of at least one of the moving bodies and blades in any one of the loop and the internal loop to achieve a rotation speed closer to the target rotation speed.

[0134] More specifically, Figure 13 This is an example diagram of a wind power generation system with variable gears. Figure 13As shown, a wind power generation system according to an embodiment of the present invention may include: a cycle 1310, a first internal cycle 1320, and a second internal cycle 1330. The first internal cycle 1320 has a shorter moving path than the cycle 1310, and the second internal cycle 1330 has a shorter moving path than the first internal cycle 1320. At the same wind speed, the cycle 1310, the first internal cycle 1320, and the second internal cycle 1330 may also be configured to have different moving speeds. As described above, the generator may be configured to have a target rotation speed, and thus may be selectively rotated and linked to a cycle that can provide the target rotation speed most suitable for the generator according to the wind speed. For example, Figure 13 As shown, the generator central rotating shaft 1340 can be connected to the first rotating linkage shaft 1311 for the circulation 1310 through the first rotating belt 1341, can be connected to the second rotating linkage shaft 1321 for the first internal circulation 1320 through the second rotating belt 1342, and can be connected to the third rotating linkage shaft 1331 for the second internal circulation 1330 through the third rotating belt 1343. The first rotating belt 1341 to the third rotating belt 1343 can be configured to be able to open / close the rotation linkage with the generator central rotating shaft 1340, so any one of the first rotating belt 1341 to the third rotating belt 1343 can be selectively connected to the generator central rotating shaft 1340 in rotation linkage. However, in Figure 13 The illustrated embodiment is exemplary, and a structure for selecting any one of a plurality of cycles to rotate the central rotating shaft of the generator may be implemented by various embodiments such as a gearbox.

[0135] Here, the wind speed related information can be obtained from a wind speed sensor. A single wind speed sensor can be configured, or a wind speed sensor can be set at each cycle or each blade to calculate the expected moving speed of each cycle based on the wind speed.

[0136] On the other hand, in a wind power generation system according to an embodiment of the present invention, if normal operation of the wind power generation system cannot be guaranteed, such as during a typhoon, blade protection measures may need to be implemented. For example, a storage facility for the blades may be provided, or blade protection measures may be implemented by fastening the blades together or folding the blades toward the ground.

[0137] Figure 14 This is an example diagram of a repository that is built separately. Figure 14As shown, a wind power generation system according to one embodiment of the present invention further includes: a storage bin 1430 for storing a plurality of blades; a branch point 1410 included in a track; and a storage track 1420 providing a movement path from the branch point to the storage bin. Multiple blades 30 can be stored in the storage bin 1430 via the branch point 1410 and the storage track 1420. As described above, the connection between the moving body 20 and / or the blades 30 and the track 10 can be achieved through various implementations. If the blades 30 are configured to slide on the track 10, measures can be taken to move the blades 30 from the branch point 1410 on the track 10 to the storage track 1420 when protective measures are required. The blades 30 can then slide along the storage track 1420 and be stored in the storage bin 1430. In another embodiment, the moving body 20 slides on the track 10 to change the position of the blades 30 on the moving body 20. In this embodiment, the moving body 20 can separate a portion of the circulation. When blade protection measures are required, the portion of the circulation of the moving body 20 can be separated and then extended along the storage track 1420 through the branch point 1410 to the storage vault 1430. Since the position of the blades on the moving body 20 can be changed, the blades can be moved on the moving body 20 extending along the storage track 1420 and stored in the storage vault 1430.

[0138] Figure 15 is an example diagram of a repository built on orbit. Figure 15 As shown, the wind power generation system according to one embodiment of the present invention further includes a storage 1530. The storage 1530 is configured so that the track 10 passes through it, and can also be configured so that the plurality of blades 30 are moved along the track 10 and stored in the storage 1530. Figure 15 In the exemplary embodiment, Figure 14 As shown, the blade 30 can be moved to the storage 1530 in various ways depending on the connection relationship with the moving body and / or the blade track.

[0139] Figure 16 The following diagram shows an example of the fastening method between blades. Figure 16 As shown, when multiple blades from blade 1630 - 1 to blade 1630 - 2 need protection against typhoons, these blades can be combined with each other.

[0140] According to one aspect, each of the plurality of blades may include a fastening tool that is coupled to an adjacent blade when the spacing between the plurality of blades is minimized. That is, by fastening the adjacent blades, all of the plurality of blades are eventually coupled together, thereby improving typhoon resistance.

[0141] According to another aspect, the plurality of blades also includes a first blade 1630-1 located on the leftmost side and a second blade 1630-2 located on the rightmost side when the spacing between the plurality of blades is minimized. The first blade 1630-1 and the second blade 1630-2 each have a fastening tool. The first blade's fastening tool and the second blade's fastening tool are mutually fastened to form a connection between the plurality of blades. In addition, the structure of connecting the plurality of blades can be realized through various embodiments.

[0142] Figure 17 is an example diagram of a blade that can be folded toward the ground. Figure 17 As shown, each of the plurality of blades can be configured to be foldable toward the ground. The blades are normally located at a normal position 1730 and generate power based on wind energy. When protective measures are required, such as when there is a risk of a typhoon, the blades are folded toward a position 1740 adjacent to the ground to minimize the impact of wind.

[0143] On the other hand, the wind power generation system of one embodiment of the present invention can be constructed in the form of a wind farm that generates a large amount of electricity. Figure 18 This is an example diagram of a configuration of multiple concentric orbits; Figure 19 This is an example diagram of a stacked multiple track configuration. Figure 18 As shown, the first cycle 1810, the second cycle 1820 and the third cycle 1830 are concentric and have different moving distances, thereby improving space utilization. Figure 19 As shown, the first loop 1810, the second loop 1820 and the third loop 1830 are stacked in sequence in a vertical direction, which can improve space utilization. Figure 18 and Figure 19 The implementation methods can also be implemented in combination.

[0144] On the other hand, the accompanying drawings illustrate a track that is completely horizontal on the ground. However, depending on the terrain, a considerable degree of curvature may be applied, and a track that includes multiple curves rather than straight lines may also be realized. In the present invention, the term "horizontal direction" should be understood to include not only the completely horizontal direction described above, but also all directions that are substantially inclined other than the horizontal direction.

[0145] (Second embodiment)

[0146] Figure 20 FIG is a conceptual diagram of a wind power generation system according to a second embodiment of the present invention. Figure 20 As shown, a wind power generation system 2000 according to an embodiment of the present invention may include a track 2010 , a moving body 2020 , a plurality of blades 2030 , a combined body 2050 , and a nacelle 2040 having a generator.

[0147] The track 2010 can provide a horizontal movement path for the plurality of moving bodies 2020 to slide. Here, the horizontal direction is not only a completely horizontal direction in the mathematical sense as described above, but can also be understood as a movement path formed roughly along the ground or water surface. Figure 20 In the illustrated embodiment, an example is given of providing a moving path for the moving body 2020 to slide on the rail 2010, but as described above, for example, Figure 1 or Figure 2 As shown, the track 2010 provides a moving path on the side of the moving body 2020, and the track 2010 can have various design forms that can provide a moving path for the moving body 2020 to slide. Figure 20 As shown, the track 2010 of an embodiment of the present invention is set on the ground, or is set through a support frame, and can provide a horizontal moving path for the moving body 2020.

[0148] Multiple moving bodies 2020 can slide along the movement path provided by the track 2010. Here, each of the multiple moving bodies 2020 may have blades 2030, which are provided on each of the multiple moving bodies to provide power for moving each of the multiple moving bodies based on wind energy. In other words, each moving body 2020 can slide along the movement path provided by the track 2010 using the power of the blades 2030 based on wind force.

[0149] In other words, the plurality of blades 2030 provided on the mobile body 2020 can provide power for moving the mobile body 2020 based on wind energy. That is, when wind blows, the energy provided by the wind acts on the blades 2030, so that the blades 2030 and the mobile body 2020 connected to the blades move. Figure 20 In the illustrated embodiment, the moving body 2020 contacts the rail 2010 and the blades 2030 are provided on the moving body 2020 . However, the arrangement forms and structures of the rail 2010 , the moving body 2020 , and the blades 2030 may be variously modified.

[0150] like Figure 20 As shown, there may be a combination body 2050, which is fastened to the upper ends of blades respectively arranged on a plurality of moving bodies and moves based on the power provided by the blades; on the one hand, as Figure 20 As shown, the combined body 2050 can also be formed into one body, or on the other hand can be a chain with multiple segmented structures. In addition, according to an embodiment, the combined body 2050 can also be made of a material with flexibility.

[0151] Re-reference Figure 20, a nacelle 2040 having a generator may be arranged adjacent to the combination 2050. According to one aspect, the generator may be a generator that generates electricity by rotating a generator center shaft gear 2045 coupled to a generator center rotating shaft, and the generator center rotating shaft rotates in conjunction with the movement of the combination 2050. Figure 20 The structure in which the central rotating shaft of the generator rotates in conjunction with the movement of the combined body 2050 is exemplified.

[0152] This is the same as the description of the first embodiment above. Figure 3 The power transmission structure between the blade and / or the moving body and the central shaft of the generator according to the first aspect is shown; Figure 4 A power transmission structure between the blades and / or the moving body and the central shaft of the generator according to the second aspect is shown.

[0153] For example, Figure 3 As shown, the generator may include a generator central rotating shaft 45c and a circular sawtooth gear 45, wherein the circular sawtooth gear 45 is coupled to the generator central rotating shaft 45c and is coupled to the generator in a coupling body ( Figure 20 The surface of 2050) has a plurality of sawtooth mountains. As the combined body 2050 moves, the sawtooth mountains engage with the sawtooth mountains 45a of the circular sawtooth gear 45 to move, thereby rotating the central rotating shaft 45c of the generator.

[0154] For similar purposes, the features of the present invention described below using the first embodiment and the related drawings are also applicable to the second embodiment. In the following description, the reference numerals for the rails and moving bodies of the first embodiment are used together, but those skilled in the art can readily apply these descriptions to the second embodiment.

[0155] Figure 12 This is an example diagram for the configuration of the generator center axis. Figure 12 As shown, the generator center axis can have various embodiments in relation to the track. According to one aspect, as Figure 12 As shown, in the embodiment in which the track 10 and the moving body 20 form a loop, the generator center rotating shafts 1210 and 1220 can be located outside the loop or inside the loop. In addition, the rotation of the generator center rotating shafts 1210 and 1220 can be directly linked to the movement of the moving body and / or blades, or can be rotated and linked with an intermediate tool such as the generator center rotating shaft 1230. Figure 12As shown, the wind power generation system according to one embodiment of the present invention further includes a transmission shaft 1231. The transmission shaft 1231 rotates in conjunction with the movement of at least one of the moving body 20 and the blades 30. A rotating pulley disposed on the transmission shaft 1231 and a rotating pulley disposed on the generator center rotating shaft 1230 of the generator can be rotated and linked together via a rotating belt 1233. For example, the rotating belt 1233 can also be formed of a conveyor belt or a chain.

[0156] On the other hand, refer to Figure 1 and Figure 2 In a wind power generation system according to an embodiment of the present invention, the track 10 may form a loop. According to one aspect, in a second embodiment, the track 2010 may further include an upper frame supported by a plurality of upper frame support frames. The upper frame movably holds the coupling 2050, thereby improving the upright stability of the blades 2030.

[0157] By forming a loop with the track 10, the movement paths of the plurality of blades and / or the moving body can have a loop structure. Here, each of the plurality of blades 2030 adaptively rotates based on information related to the target movement direction and information related to the wind direction to maximize the power in the target movement direction, wherein the target movement direction is determined by the position of each of the plurality of blades 2030.

[0158] According to another aspect, each of the multiple blades 2030 can be made of a flexible material and have multiple air bags. The air filling amount of at least one of the multiple air bags is controlled based on information related to the target movement direction and information related to the wind direction, and can be deformed into a shape that maximizes the power in the target movement direction, wherein the target movement direction is determined according to the position of each of the multiple blades in the cycle.

[0159] Regarding the target movement direction, refer to Figure 10 A more detailed explanation is given. Figure 10 FIG. 1 is a top view of a wind power generation system according to one aspect. Figure 10 As shown, according to one embodiment of the present invention, for example, a loop formed by the track 10 may include: a first portion 1010, providing a moving path in a first direction; a second portion 1030, providing a moving path in a second direction opposite to the first direction; a first transition portion 1020, providing a moving path from the first portion to the second portion; and a second transition portion 1040, providing a moving path from the second portion to the first portion. For example, the blade may be moved clockwise in the loop, so that Figure 10In the first portion 1010, the target movement direction of the blade can be (right→left), and in the first transition portion 1020, the target movement direction of the blade gradually changes from (right→left) to (down→up) according to the extent of the blade's movement from the first portion 1010 to the second portion 1030, and then gradually changes back to (left→right). On the other hand, the target movement direction of the blade in the second portion 1030 is set to (left→right), and the target movement direction of the blade in the second transition portion 1040 gradually changes from (left→right) to (up→down) according to the extent of the blade's movement from the second portion 1030 to the first portion 1010, and then gradually changes back to (right→left). In other words, the target movement direction of the blade can be determined based on the position of each blade in the cycle.

[0160] Once the target movement direction of each blade has been determined, each blade can be adaptively rotated based on wind direction information to change its direction, thereby maximizing the power of each blade in the target movement direction. For example, each blade can be rotated about a rotation axis perpendicular to the ground.

[0161] For example, each of the plurality of blades may rotate in a direction to perform downwind sailing in response to a determination that the target moving direction is consistent with the wind direction, and may rotate in a direction to perform upwind sailing in response to a determination that the target moving direction is opposite to the wind direction. Figure 10 In the embodiment, when the wind direction is (right to left), the blades are rotated in the direction of sailing with the wind in the first part 1010, and in the direction of sailing against the wind in the second part 1030. The blades are rotated in the first adapter part 1020 and the second adapter part 1040 according to the target movement direction determined by the positions of the blades to maximize power.

[0162] According to one aspect of the present invention, each blade can be configured in the shape of a sail, such as a sail on a sailboat. Each blade has a support frame that holds the sail-shaped membrane. Consequently, the wind power generation system according to one aspect of the present invention can be constructed at significantly lower equipment costs compared to conventional wind turbines with large rotor blades. The sail-shaped membrane can be formed from tent material such as linen or cotton, but synthetic fibers such as polyethylene terephthalate (TETRON) or polymer fusions can also be used.

[0163] On the other hand, as described above, in accordance with Bernoulli's theorem and / or the principle of sailboat steering, each blade 30 can be deformed into a shape that maximizes power in the target direction of movement. For example, according to Bernoulli's theorem, increasing the inclination of one side of the blade and making that inclination greater than the inclination of the other side can change the air flow speed on both sides of the blade, thereby generating power from a specific side of the blade to the other side.

[0164] In an exemplary embodiment, each of the plurality of blades may be formed of a flexible material and have a plurality of air pockets. The air filling volume of specific air pockets may be selectively varied, thereby achieving a blade having a dynamic shape in a desired direction under predetermined wind conditions. To vary the air filling volume, for example, an air pump may be used.

[0165] In another embodiment, a film-shaped blade without an additional air pocket can be controlled by a lattice-shaped support frame capable of changing the angle in segmented units, and the blade shape can be deformed into a shape that maximizes power in a desired direction under specific wind conditions by changing the rotation amount in each lattice unit.

[0166] On the other hand, according to an aspect of the present invention, the rotation of each blade is performed, for example, with the rotation axis perpendicular to the ground. Figure 7 FIG is a cross-sectional view of a blade support frame according to one aspect. Figure 7 As shown, the support frame for each blade may include an upper support frame 31 and a lower support frame 32. The upper support frame 31 supports the sail-shaped membrane, and the lower support frame 32 is rotatably coupled to the upper support frame 31. The lower support frame 32 has a hole through which a blade rotation shaft 35 coupled to the upper support frame 31 can pass. The blade rotation shaft 35 is connected to a motor shaft 34 and rotates based on the rotational force from the motor 33, thereby rotating the upper support frame and adjusting the direction of the sail-shaped membrane in a desired direction.

[0167] on the other hand, Figure 8This is an example diagram of a highly separated blade according to one aspect. In a wind power generation system according to one aspect of the present invention, the appropriate blade size for maximizing power generation efficiency can be quite large, and wind direction can vary depending on altitude. To maximize the power of blade 30 in a target direction of movement when wind direction varies with altitude, the blade comprises a first portion 37a, a second portion 37b, and a third portion 37c, each separated by altitude. Furthermore, the blade comprises a first transition point 38a, a second transition point 38b, and a third transition point 38c. By rotating each transition point, the orientation of the sail-shaped membrane in each portion can be set differently. Specifically, each of the plurality of blades 30 comprises a first portion and a second portion, each separated by altitude. The first and second portions are configured to rotate independently of each other and rotate based on wind direction information at the altitudes at which the first and second portions are located, thereby maximizing the power of blade 30 in the target direction of movement.

[0168] The acquisition of position information, wind direction-related information, etc. used to determine the target movement direction of the blade can be achieved by adopting any of the common sensor systems, and the control system used to determine and change the direction of the blade can also select any of the common control systems.

[0169] For example, the position information of each of the plurality of blades in the loop can be obtained by receiving a position identification signal from at least one of the plurality of position identification signal generating devices configured in the loop through a position signal receiving device respectively provided on the plurality of blades. On the other hand, the position information of each blade can be determined by a positioning system such as GPS. The target moving direction according to the blade position can be determined based on the table information stored in the database, or it can be calculated in real time by a computer device based on each position and the loop shape. On the other hand, wind direction-related information can also be obtained from wind direction sensors respectively provided on the plurality of blades to use accurate information on the wind direction of each blade. The control system that performs calculations such as determining the direction can be set to configure a computing device or processor separately for each blade, or to configure an integrated control system, which sends and receives information with each blade and also enables the integrated control system to perform control on each blade.

[0170] Re-reference Figure 2 In one embodiment of the present invention, a wind power generation system 100 may include multiple nacelles. For example, nacelle 40 may include a generator having a generator center shaft gear 45-1. Wind power generation system 100 may also include additional nacelles, each of which may additionally include a generator having a generator center shaft gear 45-2.

[0171] On the other hand, depending on the type of wind turbine, the generator disposed in the nacelle 40 may be configured to have a preset target rotational speed. Alternatively, the target rotational speed may be adjusted as needed.

[0172] In this regard, in the second embodiment, the coupling body 2050 and the plurality of blades 2030 are each movably fastened to adjust the clamps between the plurality of blades. In one aspect, the coupling body 2050 may also be formed by a chain connecting the blades 2030. In this case, the coupling between the coupling body 2050 and the blades 2030 can be configured in a re-adjustable manner.

[0173] Figure 10 is a top view of a wind power generation system according to one aspect; Figure 11 This is a top view of a wind turbine system with adjustable blade pitch. The speed of the blades can be controlled by adjusting the rotation speed of the central rotating shaft of the generator. Figure 11 As shown, the track may include a straight section 1110 and curved sections 1120 - 1 and 1120 - 2 . When the plurality of blades are located in the straight section 1110 , the blades may be spaced at a narrower interval than when they are located in the curved sections 1120 - 1 and 1120 - 2 .

[0174] On the other hand, the wind power generation system 2010 of an embodiment of the present invention can make the track 10 form a loop, and also include an internal loop, which is formed inside the loop to provide a moving path shorter than the loop; the generator has a pre-set target rotation speed, and rotates in conjunction with the movement of the combination of the loop and any one of the internal loops based on wind speed-related information to achieve a rotation speed closer to the target rotation speed.

[0175] More specifically, Figure 13 This is an example diagram of a wind power generation system with variable gears. Figure 13 As shown, a wind power generation system according to an embodiment of the present invention may include: a cycle 1310, a first internal cycle 1320, and a second internal cycle 1330. The first internal cycle 1320 has a shorter moving path than the cycle 1310, and the second internal cycle 1330 has a shorter moving path than the first internal cycle 1320. At the same wind speed, the cycle 1310, the first internal cycle 1320, and the second internal cycle 1330 may also be configured to have different moving speeds. As described above, the generator may be configured to have a target rotation speed, and thus may be selectively rotated and linked to a cycle that can provide the target rotation speed most suitable for the generator according to the wind speed. For example, Figure 13As shown, the generator central rotating shaft 1340 can be connected to the first rotating linkage shaft 1311 for the circulation 1310 through the first rotating belt 1341, can be connected to the second rotating linkage shaft 1321 for the first internal circulation 1320 through the second rotating belt 1342, and can be connected to the third rotating linkage shaft 1331 for the second internal circulation 1330 through the third rotating belt 1343. The first rotating belt 1341 to the third rotating belt 1343 can be configured to be able to open / close the rotation linkage with the generator central rotating shaft 1340, so any one of the first rotating belt 1341 to the third rotating belt 1343 can be selectively connected to the generator central rotating shaft 1340 in rotation linkage. However, in Figure 13 The illustrated embodiment is exemplary, and a structure for selecting any one of a plurality of cycles to rotate the central rotating shaft of the generator may be implemented by various embodiments such as a gearbox.

[0176] Here, the wind speed related information can be obtained from a wind speed sensor. A single wind speed sensor can be configured, or a wind speed sensor can be set at each cycle or each blade to calculate the expected moving speed of each cycle based on the wind speed.

[0177] On the other hand, in a wind power generation system according to an embodiment of the present invention, if normal operation of the wind power generation system cannot be guaranteed, such as during a typhoon, blade protection measures may need to be implemented. For example, a storage facility for the blades may be provided, or blade protection measures may be implemented by fastening the blades together or folding the blades toward the ground.

[0178] Figure 14 This is an example diagram of a repository that is built separately. Figure 14 As shown, a wind power generation system according to one embodiment of the present invention further includes: a storage 1430 for storing a plurality of blades; a branch point 1410 included in a track; and a storage track 1420 providing a movement path from the branch point to the storage. The plurality of blades 30 can be stored in the storage 1430 via the branch point 1410 and the storage track 1420. If the plurality of moving bodies 2020 are configured to slide on the track 2010, when protective measures are required, a moving body 2020 with blades 2030 can be moved from the branch point 1410 on the track 10 to the storage track 1420, whereupon the moving body 2020 can slide along the storage track 1420 and be stored in the storage 1430.

[0179] Figure 15 is an example diagram of a repository built on orbit. Figure 15As shown, the wind power generation system according to one embodiment of the present invention further includes a storage 1530. The storage 1530 is configured so that the track 10 passes through it and the plurality of blades 30 can be moved along the track 10 and stored in the storage 1530. In the second embodiment, a plurality of moving bodies 2020 having blades 2030 can be moved along the track 2010 and stored in the storage.

[0180] Figure 16 The following diagram shows an example of the fastening method between the blades. Figure 16 As shown, when multiple blades from blade 1630 - 1 to blade 1630 - 2 need protection against typhoons, these blades can be combined with each other.

[0181] According to one aspect, each of the plurality of blades may include a fastening tool that is coupled to an adjacent blade when the spacing between the plurality of blades is minimized. That is, by fastening the adjacent blades, all of the plurality of blades are eventually coupled together, thereby improving typhoon resistance.

[0182] According to another aspect, the plurality of blades also includes a first blade 1630-1 located on the leftmost side and a second blade 1630-2 located on the rightmost side when the spacing between the plurality of blades is minimized. The first blade 1630-1 and the second blade 1630-2 each have a fastening tool. The first blade's fastening tool and the second blade's fastening tool are mutually fastened to form a connection between the plurality of blades. In addition, the structure of connecting the plurality of blades can be realized through various embodiments.

[0183] (Third embodiment)

[0184] Figure 21 FIG. 1 is a conceptual diagram of a wind power generation system according to a third embodiment of the present invention. Figure 21 As shown, a wind power generation system 2100 according to an embodiment of the present invention may include a track 2110 , a moving body 2120 , a plurality of blades 2130 , and a nacelle 2140 having a generator.

[0185] The track 2010 can provide a horizontal movement path for the plurality of moving bodies 2120 to slide. Here, the horizontal direction is not only a completely horizontal direction in the mathematical sense as described above, but can also be understood as a movement path formed roughly along the ground or water surface. Figure 21 In the illustrated embodiment, a moving path is provided in which the moving body 210 slides on the rail 2110. However, as described above, for example, Figure 1 or Figure 2 As shown, the track 2110 provides a moving path on the side of the moving body 2020, and the track 2110 can have various design forms that can provide a sliding moving path for the moving body 2120. Figure 21As shown, the track 2110 of an embodiment of the present invention is set on the ground, or is set through a support frame, and can provide a horizontal moving path for the moving body 2120.

[0186] Multiple moving bodies 2120 can slide along the movement path provided by the track 2110. Here, each of the multiple moving bodies 2120 can have blades 2130, which are provided on each of the multiple moving bodies to provide power for moving each of the multiple moving bodies based on wind energy. In other words, each moving body 2120 can slide along the movement path provided by the track 2110 using the power of the blades 2130 based on wind force.

[0187] In other words, the plurality of blades 2130 provided on the moving body 2120 can provide power for moving the moving body 2120 based on wind energy. That is, when wind blows, the energy provided by the wind acts on the blades 2130, so that the blades 2130 and the moving body 2120 connected to the blades move. Figure 21 In the illustrated embodiment, the moving body 2120 contacts the rail 2110 and the blades 2130 are provided on the moving body 2120 . However, the arrangement forms and structures of the rail 2110 , the moving body 2120 , and the blades 2130 may be variously modified.

[0188] Re-reference Figure 21 , a nacelle 2140 may be arranged adjacent to the moving body 2120 and / or the blades 2130, and the nacelle 2140 may be provided with a generator. According to one aspect, the generator may be a generator that generates electricity by rotating a generator center shaft gear 2145 coupled to a generator center rotating shaft, and the generator center rotating shaft rotates in conjunction with the movement of at least one of the moving body 2120 and the blades 2130. Figure 21 The structure in which the central rotating shaft of the generator rotates in conjunction with the movement of the moving body 2120 is shown as an example. Figure 21 In an exemplary embodiment, a transmission rod 2125 may be disposed on a surface of the moving body 2120 facing the generator.

[0189] More specifically, Figure 22 Shown in Figure 21 In the embodiment of the invention, the power transmission structure between the moving body and the central axis of the generator is as follows. Figure 22 As shown, the generator has a generator central rotating shaft 2145c and a circular sawtooth gear 2145a, and the circular sawtooth gear 2145a is coupled to the generator central rotating shaft 2145c. For example, a blade transmission rod 2125 may be disposed on the side of the moving body 2120 facing the generator. When the blade transmission rod 2125 moves, it acts on the gear sawtooth mountain 2145a formed on the generator central shaft gear 2145, so that the generator central rotating shaft 2145c can be rotated. Figure 22Different from what is shown, a transmission rod may be arranged on the side of the blade 2130 facing the generator to cause the central rotation axis 2145c to rotate.

[0190] For similar purposes, the features of the present invention described below using the first embodiment and the related drawings are also applicable to the third embodiment. In the following description, the reference numerals for the rails and moving bodies of the first embodiment are used together, but those skilled in the art can readily apply these descriptions to the third embodiment.

[0191] Figure 12 This is an example diagram for the configuration of the generator center axis. Figure 12 As shown, the generator center axis can have various embodiments in relation to the track. According to one aspect, as Figure 12 As shown, in the embodiment in which the track 10 and the moving body 20 form a loop, the generator center rotating shafts 1210 and 1220 can be located outside the loop or inside the loop. In addition, the rotation of the generator center rotating shafts 1210 and 1220 can be directly linked to the movement of the moving body and / or blades, or can be rotated and linked with an intermediate tool such as the generator center rotating shaft 1230. Figure 12 As shown, the wind power generation system according to one embodiment of the present invention further includes a transmission shaft 1231. The transmission shaft 1231 rotates in conjunction with the movement of at least one of the moving body 20 and the blades 30. A rotating pulley disposed on the transmission shaft 1231 and a rotating pulley disposed on the generator center rotating shaft 1230 of the generator can be rotated and linked together via a rotating belt 1233. For example, the rotating belt 1233 can also be formed of a conveyor belt or a chain.

[0192] On the other hand, refer to Figure 1 and Figure 2 In a wind power generation system according to an embodiment of the present invention, the track 10 may form a loop. According to one aspect, in a third embodiment, the track 2010 may further include an upper frame supported by a plurality of upper frame support frames. The upper frame movably holds the blades 2130 disposed on the moving body 2120, thereby improving the upright stability of the blades 2130.

[0193] By forming a loop with the tracks 10, 2010, the movement paths of the plurality of blades and / or the moving body can have a looping structure. Here, the plurality of blades 2130 each adaptively rotates based on information related to the target movement direction and information related to the wind direction to maximize the power in the target movement direction, wherein the target movement direction is determined by the position of each of the plurality of blades 2130.

[0194] According to another aspect, each of the multiple blades 2130 can be made of a flexible material and have multiple air bags. The air filling amount of at least one of the multiple air bags is controlled based on information related to the target movement direction and information related to the wind direction, and can be deformed into a shape that maximizes the power in the target movement direction, wherein the target movement direction is determined according to the position of each of the multiple blades in the cycle.

[0195] Regarding the target movement direction, refer to Figure 10 A more detailed explanation is given. Figure 10 FIG. 1 is a top view of a wind power generation system according to one aspect. Figure 10 As shown, according to one embodiment of the present invention, for example, a loop formed by the track 10 may include: a first portion 1010, providing a moving path in a first direction; a second portion 1030, providing a moving path in a second direction opposite to the first direction; a first transition portion 1020, providing a moving path from the first portion to the second portion; and a second transition portion 1040, providing a moving path from the second portion to the first portion. For example, the blade may be moved clockwise in the loop, so that Figure 10 In the first portion 1010, the target movement direction of the blade can be (right→left), and in the first transition portion 1020, the target movement direction of the blade gradually changes from (right→left) to (down→up) according to the extent of the blade's movement from the first portion 1010 to the second portion 1030, and then gradually changes back to (left→right). On the other hand, the target movement direction of the blade in the second portion 1030 is set to (left→right), and the target movement direction of the blade in the second transition portion 1040 gradually changes from (left→right) to (up→down) according to the extent of the blade's movement from the second portion 1030 to the first portion 1010, and then gradually changes back to (right→left). In other words, the target movement direction of the blade can be determined based on the position of each blade in the cycle.

[0196] Once the target movement direction of each blade has been determined, each blade can be adaptively rotated based on wind direction information to change its direction, thereby maximizing the power of each blade in the target movement direction. For example, each blade can be rotated about a rotation axis perpendicular to the ground.

[0197] For example, each of the plurality of blades may rotate in a direction to perform downwind sailing in response to a determination that the target moving direction is consistent with the wind direction, and may rotate in a direction to perform upwind sailing in response to a determination that the target moving direction is opposite to the wind direction. Figure 10In the embodiment, when the wind direction is (right to left), the blades are rotated in the direction of sailing with the wind in the first part 1010, and in the direction of sailing against the wind in the second part 1030. The blades are rotated in the first adapter part 1020 and the second adapter part 1040 according to the target movement direction determined by the positions of the blades to maximize power.

[0198] According to one aspect of the present invention, each blade can be configured in the shape of a sail, such as a sail on a sailboat. Each blade has a support frame that holds the sail-shaped membrane. Consequently, the wind power generation system according to one aspect of the present invention can be constructed at significantly lower equipment costs compared to conventional wind turbines with large rotor blades. The sail-shaped membrane can be formed from tent material such as linen or cotton, but synthetic fibers such as polyethylene terephthalate (TETRON) or polymer fusions can also be used.

[0199] On the other hand, as described above, in accordance with Bernoulli's theorem and / or the principle of sailboat steering, each blade 2130 can be deformed into a shape that maximizes power in the target direction of movement. For example, according to Bernoulli's theorem, increasing the inclination of one side of the blade and making that inclination greater than the inclination of the other side can change the air flow speed on both sides of the blade, thereby generating power from a specific side of the blade to the other side.

[0200] In an exemplary embodiment, each of the plurality of blades may be formed of a flexible material and have a plurality of air pockets. The air filling volume of specific air pockets may be selectively varied, thereby achieving a blade having a dynamic shape in a desired direction under predetermined wind conditions. To vary the air filling volume, for example, an air pump may be used.

[0201] In another embodiment, a film-shaped blade without an additional air pocket can be controlled by a lattice-shaped support frame capable of changing the angle in segmented units, and the blade shape can be deformed into a shape that maximizes power in a desired direction under specific wind conditions by changing the rotation amount in each lattice unit.

[0202] On the other hand, according to an aspect of the present invention, the rotation of each blade is performed, for example, with the rotation axis perpendicular to the ground. Figure 7 FIG is a cross-sectional view of a blade support frame according to one aspect. Figure 7As shown, the support frame for each blade may include an upper support frame 31 and a lower support frame 32. The upper support frame 31 supports the sail-shaped membrane, and the lower support frame 32 is rotatably coupled to the upper support frame 31. The lower support frame 32 has a hole through which a blade rotation shaft 35 coupled to the upper support frame 31 can pass. The blade rotation shaft 35 is connected to a motor shaft 34 and rotates based on the rotational force from the motor 33, thereby rotating the upper support frame and adjusting the direction of the sail-shaped membrane in a desired direction.

[0203] on the other hand, Figure 8 This is an example diagram of a highly separated blade according to one aspect. In a wind power generation system according to one aspect of the present invention, the appropriate blade size for maximizing power generation efficiency can be quite large, and wind direction can vary depending on altitude. To maximize the power of blade 30 in a target direction of movement when wind direction varies with altitude, the blade comprises a first portion 37a, a second portion 37b, and a third portion 37c, each separated by altitude. Furthermore, the blade comprises a first transition point 38a, a second transition point 38b, and a third transition point 38c. By rotating each transition point, the orientation of the sail-shaped membrane in each portion can be set differently. Specifically, each of the plurality of blades 30 comprises a first portion and a second portion, each separated by altitude. The first and second portions are configured to rotate independently of each other and rotate based on wind direction information at the altitudes at which the first and second portions are located, thereby maximizing the power of blade 30 in the target direction of movement.

[0204] The acquisition of position information, wind direction-related information, etc. used to determine the target movement direction of the blade can be achieved by adopting any of the common sensor systems, and the control system used to determine and change the direction of the blade can also select any of the common control systems.

[0205] For example, the position information of each of the plurality of blades in the loop can be obtained by receiving a position identification signal from at least one of the plurality of position identification signal generating devices configured in the loop through a position signal receiving device respectively provided on the plurality of blades. On the other hand, the position information of each blade can be determined by a positioning system such as GPS. The target moving direction according to the blade position can be determined based on the table information stored in the database, or it can be calculated in real time by a computer device based on each position and the loop shape. On the other hand, wind direction-related information can also be obtained from wind direction sensors respectively provided on the plurality of blades to use accurate information on the wind direction of each blade. The control system that performs calculations such as determining the direction can be set to configure a computing device or processor separately for each blade, or to configure an integrated control system, which sends and receives information with each blade and also enables the integrated control system to perform control on each blade.

[0206] Re-reference Figure 2 In one embodiment of the present invention, a wind power generation system 100 may include multiple nacelles. For example, nacelle 40 may include a generator having a generator center shaft gear 45-1. Wind power generation system 100 may also include additional nacelles, each of which may additionally include a generator having a generator center shaft gear 45-2.

[0207] On the other hand, depending on the type of wind turbine, the generator disposed in the nacelle 40 may be configured to have a preset target rotational speed. Alternatively, the target rotational speed may be adjusted as needed.

[0208] In the third embodiment, the plurality of moving bodies 2120 can move on the rails 2110 , respectively, and the intervals between the moving bodies 2120 can be changed. Figure 10 is a top view of a wind power generation system according to one aspect; Figure 11 This is a top view of a wind turbine system with adjustable blade pitch. The speed of the blades can be controlled by adjusting the rotation speed of the central rotating shaft of the generator. Figure 11 As shown, the track may include a straight section 1110 and curved sections 1120 - 1 and 1120 - 2 . When the plurality of blades are located in the straight section 1110 , the blades may be spaced at a narrower interval than when they are located in the curved sections 1120 - 1 and 1120 - 2 .

[0209] On the other hand, in a wind power generation system according to an embodiment of the present invention, if normal operation of the wind power generation system cannot be guaranteed, such as during a typhoon, blade protection measures may need to be implemented. For example, a storage facility for the blades may be provided, or blade protection measures may be implemented by fastening the blades together or folding the blades toward the ground.

[0210] Figure 14This is an example diagram of a repository that is built separately. Figure 14 As shown, the wind power generation system according to one embodiment of the present invention further includes: a storage 1430 for storing a plurality of blades; a branch point 1410 included in a track; and a storage track 1420 providing a movement path from the branch point to the storage. The plurality of blades 30 can be stored in the storage 1430 via the branch point 1410 and the storage track 1420. As in the third embodiment, when the blades 2130 provided on each movable body 2120 are configured to slide on the track 2110, when protective measures are required, the movable body 2120 with the blades 2130 can be moved from the branch point 1410 on the track 10 to the storage track 1420, whereupon the blades 2130 can slide along the storage track 1420 and be stored in the storage 1430.

[0211] Figure 15 is an example diagram of a repository built on orbit. Figure 15 As shown, the wind power generation system according to an embodiment of the present invention further includes a storage 1530, which is configured to allow the track 10 to pass through, and can also be configured to allow the plurality of blades 30 to move along the track 10 to be stored in the storage 1530. Figure 15 In the exemplary embodiment, Figure 14 As shown, the blades 30 can be moved to the storage 1530 in various ways according to the track connection relationship with the moving body and / or the blades. In the third embodiment, a plurality of moving bodies 2120 can be moved along the track 2120 to be stored in the storage.

[0212] Figure 16 The following diagram shows an example of the fastening method between the blades. Figure 16 As shown, when multiple blades from blade 1630 - 1 to blade 1630 - 2 need protection against typhoons, these blades can be combined with each other.

[0213] According to one aspect, each of the plurality of blades may include a fastening tool that is coupled to an adjacent blade when the spacing between the plurality of blades is minimized. That is, by fastening the adjacent blades, all of the plurality of blades are eventually coupled together, thereby improving typhoon resistance.

[0214] According to another aspect, the plurality of blades also includes a first blade 1630-1 located on the leftmost side and a second blade 1630-2 located on the rightmost side when the spacing between the plurality of blades is minimized. The first blade 1630-1 and the second blade 1630-2 each have a fastening tool. The first blade's fastening tool and the second blade's fastening tool are mutually fastened to form a connection between the plurality of blades. In addition, the structure of connecting the plurality of blades can be realized through various embodiments.

[0215] Figure 17is an example diagram of a blade that can be folded toward the ground. Figure 17 As shown, each of the plurality of blades can be configured to be foldable toward the ground. The blades are normally located at a normal position 1730 and generate power based on wind energy. When protective measures are required, such as when there is a risk of a typhoon, the blades are folded toward a position 1740 adjacent to the ground to minimize the impact of wind.

[0216] (Experimental example)

[0217] Compared to existing large-fan wind turbines, the wind power generation system according to one aspect of the present invention can achieve improved power generation efficiency and reduced noise. To test the power generation performance and noise generation of the wind power generation system according to one aspect of the present invention, a computational fluid dynamics model of the wind power generation system of the experimental example was implemented using the following design conditions.

[0218] - Multiple blades are arranged in sequence on a circular track to generate driving energy based on wind power;

[0219] -Calculation area size: 300x250x200(m 3 (same size as the Jeju Island wind farm);

[0220] Turbine airfoil (NACA0009 - sail shape): horizontal length = 90 (m) / vertical height = 120 (m) / maximum lift incidence angle = 5.5 degrees / distance between turbines = 150 (m) / track speed = 1.9 m / s (based on maximum generator efficiency);

[0221] - Wind conditions: Average wind speed = 11.4m / s (Re 弦 ≒7x10 7 ) / wind condition = 0 (headwind), 45, 90 (crosswind), 180 (tailwind) degrees;

[0222] Computational fluid dynamics analysis was used to measure the power generation based on the energy produced by the model's moving blades over a straight region of their trajectory and compared to the efficiency of existing wind power systems.

[0223] The selection and characteristics of the power generator used for comparison with existing wind turbines were evaluated, assuming a generator with 94.4% efficiency. The hub (gear) is connected to the track to transmit torque to the central axis of the generator nacelle. The hub and nacelle properties were determined based on a 5 MW NREL reference wind turbine (see https: / / www.nrel.gov / docs / fy09osti / 38060.pdf).

[0224] The output power is measured by taking into account the flow and vortex in the crosswind. The generated power is estimated using the following formula 1.

[0225] (Formula 1)

[0226]

[0227] Power: Electricity

[0228] Efficiency

[0229] lift: lift

[0230] drag: resistance

[0231] airfoil: wing

[0232] Here, A unit vector representing the direction of blade movement.

[0233] The output power values ​​calculated according to wind direction are as follows:

[0234] (Table 1)

[0235]

[0236] Figure 23 The figure shows the comparison of the output power of the conventional wind turbine and the wind power generation system according to one embodiment of the present invention. Figure 23 The power output of this wind turbine is compared to that of a conventional wind turbine (NREL's EMD turbine installed in California, USA, with a rotor diameter of 77 meters). The turbine exhibits similar or higher output power when receiving a tailwind, which produces maximum output. Furthermore, the pressure loss associated with noise generation is 1 / 65 of that of the conventional turbine (based on the maximum pressure loss of 260 Pa) (see Li et al., 2020, Renewable Energy).

[0237] Fluid dynamics analysis results indicate that individual sail-shaped turbines can be expected to achieve output comparable to or superior to conventional general-purpose wind turbines in winds close to the wind's direction. However, evaluations have shown that, from the perspective of the turbines along their tracks, output drops sharply when the wind direction shifts from downwind to headwind, resulting in a reduction in overall output compared to conventional wind farms of the same capacity. However, according to one aspect of the present invention, this reduction in output is expected to be overcome by rotating the blades in accordance with wind direction to maximize power.

[0238] Furthermore, compared to existing wind turbines, the wind power generation system of one embodiment of the present invention has fewer drive components and a simpler structure. By using larger turbines, it is expected to achieve higher power output. Furthermore, the pressure loss, which directly correlates with wind power generation noise, is 1 / 65 of that of existing wind turbines of the same size (based on maximum pressure loss), resulting in low-noise operation.

[0239] The above description is made with reference to the accompanying drawings and embodiments, but this does not mean that the scope of protection of the present invention is limited to the above drawings or embodiments. Those skilled in the art should understand that various modifications and changes can be made to the present invention without exceeding the scope of the idea and field of the present invention described in the claims.

[0240] The present invention described above is described based on a series of functional modules, but is not limited to the above embodiments and drawings. Various substitutions, modifications, and changes can be made without departing from the technical scope of the present invention, which will be obvious to those skilled in the art with ordinary knowledge in the art to which the present invention belongs.

[0241] The combination of the above-mentioned embodiments is not limited to the above-mentioned embodiments, and various combinations other than the above-mentioned embodiments may be provided according to implementation and / or needs.

[0242] In the above embodiments, the method is described as a series of steps or modules based on the flowchart. However, the present invention is not limited to the order of the steps, and a step may occur in a different order or simultaneously with other steps. In addition, anyone with ordinary knowledge in the art will understand that the steps in the flowchart are not excluded, but include other steps, or that one or more steps in the flowchart may be deleted without affecting the scope of the present invention.

[0243] The above-described embodiments include examples of various states. Although not all possible combinations of various states can be described, a person skilled in the art will recognize that other combinations are possible. Thus, the present invention includes all variations, modifications, and variations of the claims.

Claims

1. A wind power generation system, characterized in that: include: Track, providing a horizontal movement path; A moving body sliding along a moving path of the track; blades, provided on the mobile body, for providing power for movement of the mobile body based on wind energy; and The nacelle includes a generator that rotates in conjunction with the movement of at least one of the moving body and the blades to generate electricity. The plurality of blades can each be provided at a different position relative to the moving body. The track includes a straight section and a curved section; The plurality of blades are spaced at narrower intervals when located in the curved section than when located in the straight section.

2. The wind power generation system according to claim 1, characterized in that: The generator comprises a central rotating shaft and a circular sawtooth gear, wherein the circular sawtooth gear is coupled to the central rotating shaft. A plurality of sawtooth peaks are provided on a surface of at least one of the moving body and the blades facing the generator. As at least one of the moving body and the blades moves, the sawtooth mountain meshes with the circular sawtooth gear and moves, thereby rotating the central rotation shaft of the generator.

3. The wind power generation system according to claim 1, characterized in that: The wind power generation system further includes a transmission shaft, the transmission shaft being rotated in conjunction with the movement of at least one of the moving body and the blades; The rotary pulley provided on the transmission shaft and the rotary pulley arranged on the generator central rotating shaft of the generator are rotated and linked to each other via a rotary belt.

4. The wind power generation system according to claim 1, characterized in that: The track forms a loop; Each of the plurality of blades adaptively rotates in the cycle based on information related to the target moving direction and information related to the wind direction to maximize power in the target moving direction, wherein the information related to the target moving direction is determined according to the position of each of the plurality of blades.

5. The wind power generation system according to claim 4, characterized in that: The rotation of each of the plurality of blades is performed with respect to a rotation axis perpendicular to the ground.

6. The wind power generation system according to claim 1, characterized in that: The track forms a loop; Each of the multiple blades is made of a flexible material and has multiple air bags. The air filling amount of at least one of the multiple air bags is controlled based on relevant information about the target moving direction and relevant information about the wind direction, and then deformed into a shape that maximizes the power in the target moving direction, wherein the relevant information about the target moving direction is determined according to the position of each of the multiple blades in the cycle.

7. The wind power generation system according to claim 4 or 6, characterized in that: The position information of each of the plurality of blades in the cycle is acquired by position signal receiving devices respectively arranged on the plurality of blades receiving a position identification signal from at least one of the plurality of position identification signal generating devices arranged in the cycle.

8. The wind power generation system according to claim 4 or 6, characterized in that: The wind direction related information is acquired from wind direction sensors respectively arranged on the plurality of blades.

9. The wind power generation system according to claim 4, characterized in that: Each of the plurality of blades rotates in a direction to perform downwind sailing in response to a determination that the target moving direction is consistent with a wind direction, and rotates in a direction to perform upwind sailing in response to a determination that the target moving direction is opposite to the wind direction.

10. The wind power generation system according to claim 4, characterized in that: Each of the plurality of blades comprises a first portion of blades and a second portion of blades divided in a height direction; The first portion of blades and the second portion of blades can rotate independently of each other; Based on wind direction-related information about the heights of the first and second blade sections, the blades are adaptively rotated to maximize power in the target moving direction.

11. The wind power generation system according to claim 4, characterized in that: The cycle formed by the orbits includes: The first part provides a moving path in a first direction; a second portion providing a movement path in a second direction opposite to the first direction; a first transition portion providing a movement path from the first portion to the second portion; and The second transition portion provides a moving path from the second portion to the first portion.

12. The wind power generation system according to claim 4, characterized in that: The wind power generation system further includes an inner loop formed inside the loop to provide a shorter moving path than the loop; The generator has a preset target rotation speed and rotates in conjunction with movement of at least one of the moving body and blades in any one of the circulation and the inner circulation based on wind speed related information to achieve a rotation speed closer to the target rotation speed.

13. The wind power generation system according to claim 12, characterized in that: The wind speed related information is obtained from a wind speed sensor.

14. The wind power generation system according to claim 1, characterized in that: The wind power generation system further includes: a storage for storing the plurality of blades; a branch point included in the track; and a storage track, providing a moving path from the branch point to the storage; The plurality of blades are stored in the storage through the branch point and the storage track.

15. The wind power generation system according to claim 1, characterized in that: The wind power generation system further includes a storage reservoir, wherein the storage reservoir is formed by penetrating the track; The plurality of blades move along the track to be stored in the storage.

16. The wind power generation system according to claim 1, characterized in that: Each of the plurality of blades includes a fastening tool for being coupled with an adjacent blade when a pitch between the plurality of blades is minimized by changing an arrangement position with respect to the moving body.

17. The wind power generation system according to claim 1, characterized in that: The plurality of blades include a first blade located on the leftmost side and a second blade located on the rightmost side when a pitch between the plurality of blades is minimized by changing an arrangement position with respect to the moving body; The first blade and the second blade each have a fastening tool, and the plurality of blades are coupled together by fastening the fastening tool of the first blade and the fastening tool of the second blade to each other.

18. The wind power generation system according to claim 1, characterized in that: Each of the plurality of blades can be folded toward the ground.

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