Vertical axis multi-stage wind turbine

Abstract

To provide a vertical shaft multistage wind power generator for acquiring an economical and efficient power generation function by maximally intensifying a fair wind of a vertical shaft horizontal rotating blade and minimizing a head wind.SOLUTION: A vertical shaft multistage wind power generator includes: a fixed shaft 110 which is erected on the ground surface; a rotating blade fixing shaft 120 which is axially and rotatably connected to the fixed shaft; at least two or more rotating blades 130 which are connected to the rotating blade fixing shaft; wind ports 140 which are formed at the rotating blades, respectively; a ball net 150 which is connected to the wind ports, is protruded in a semi-spherical shape at both ends, is vacant at its inside, and is formed into a cylindrical shape, and in which only one spherically-protruded portion is protruded in one direction of the wind ports, and a remaining portion is protruded in the other direction of the wind ports; and a wind port opening / closing ball 160 in which a ball having a radius which is the same as a radius of the spherically-protruded portion is formed in the ball net, and which opens and closes the wind ports depending on positions of the rotating blades which slide in the ball bet when wind pressure acts thereon, and rotate when a wind blows.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a wind power generator, and more particularly to a vertical axis multi-stage wind power generator in which several wind power generating devices that perform independent wind power generation are installed on one tower-like structure by reducing the counter-rotating wind pressure applied to rotors. [Background technology]

[0002] A wind turbine is a device that converts the energy of the wind into electrical energy that we can use. The wind rotates the blades of the wind turbine. The rotating force of the blades generates electricity.

[0003] Specifically, a wind turbine generator is made up of three parts: the blades, the transmission, and the generator. The blades are rotated by the wind and convert wind energy into mechanical energy. The transmission transmits the rotational force generated by the blades to the transmission gear via the central rotating shaft, increasing the rotation speed required by the generator to rotate it, and the generator converts the mechanical energy generated by the blades into electrical energy.

[0004] The amount of electricity a wind turbine generates depends on the strength of the wind and the size of the turbine, because the stronger the wind speed and the larger the turbine, the more wind energy it produces. Also, the higher the height, the stronger the wind, so turbines at higher altitudes are larger and generate more electricity than those at lower altitudes. To generate electricity, wind must blow at a speed of at least 4m / s. The wind speed referred to here refers to the speed at the height of the turbine's blades, not the ground where we are standing.

[0005] These wind turbines generate electricity by utilizing the kinetic energy of wind, making them a highly effective alternative to fossil fuels. They can provide economical electricity to areas where electricity supplies are lagging behind, such as remote islands, and by installing them in coastal and mountainous areas with abundant wind, they can streamline land use within the country.

[0006] Wind turbines are classified as "horizontal axis wind turbines" if their axis of rotation is parallel to the ground, which is the direction from which the wind blows, and as "vertical axis wind turbines" if their axis of rotation is perpendicular to the ground.

[0007] Horizontal axis generators are the most common type of generator and are propeller-type generators with three to four blades on each pole. They have a simple structure, are easy to install, and have excellent energy conversion efficiency. However, they require a yawing device to align with the wind, and the turning radius of the blades is large, which can cause noise and lead to damage. In addition, the heavy nacelle is installed at the top of the tower, making inspection and maintenance difficult.

[0008] Vertical axis generators are not affected by wind direction and can be installed in multiple stages, but their generating efficiency is relatively lower than that of horizontal axis generators.

[0009] Such vertical axis generators are not affected by wind direction and so seem to have high generating efficiency, but the reason their generating efficiency is lower than that of horizontal axis generators is due to the reverse rotating wind pressure that the rotors attached to the vertical axis are inevitably subjected to as they rotate around a fixed axis. [Prior art documents] [Patent documents]

[0010] [Patent Document 1] Korean Patent No. 10-2448925 [Patent Document 2] Korean Patent No. 10-1498785 [Patent Document 3] Korean Patent No. 10-1483461 [Patent Document 4] Korean Patent No. 10-1554037 [Patent Document 5] Korean Patent No. 10-1325752 [Patent Document 6] Korean Patent No. 10-1722659 Summary of the Invention [Problem to be solved by the invention]

[0011] The present invention is made to solve the above-mentioned problems, and provides a structurally stable vertical axis multi-stage wind power generator that can withstand strong winds even when independent wind power generation devices are installed in multiple stages vertically by greatly reducing the reverse rotation wind pressure that the rotors receive while rotating in the opposite direction to the wind. [Means for solving the problem]

[0012] In order to achieve the above object, the present invention provides a vertical axis wind power generator in which a rotating shaft is placed perpendicular to the ground, which is the direction from which the wind blows. The vertical axis wind power generator includes four support poles 220 erected on the ground, a plurality of wind guide plates 210 fixed at regular intervals in a form in which the four support poles are inserted into support hole 210b formed on the outer periphery, a fixed shaft 110 vertically connected from center to center between two wind guide plates, a rotor fixed shaft 120 rotatably connected to the fixed shaft, at least two or more rotors 130 connected to the rotor fixed shaft, air ports 140 formed on each of the rotors, and a wind fan connected to the air port. a ball net 150 having a cylindrical shape with a hollow interior and a hemispherical protruding portion at one end of the air port and the remaining portion protruding at the other end of the air port; a wind port opening / closing ball 160 having a ball with the same radius as the radius of the hemispherical protruding portion formed inside the ball net, which slides inside the ball net when wind pressure acts on it and opens and closes the air port depending on the position of the rotating blades when the wind blows; and a power generation device M which engages with the rotor fixed shaft to produce electricity.

[0013] The vertical axis wind generator includes: at least three or more supports 220 connected to the outer periphery of the wind guide plate to strengthen the structure so as to withstand relatively strong wind pressure; a plurality of rotor fixed shafts 120 rotatably connected to the fixed shafts; at least two or more rotors 130 connected to the rotor fixed shafts and positioned between the wind guide plates; and a power generation device M engaged with the rotor fixed shafts to generate electricity.

[0014] The wind guiding plate 210 is a cone-shaped wind guiding plate formed on the fixed shaft in multiple stages. ... a ball net 150 having a cylindrical shape with a hemispherical protrusion and an open interior, with only one hemispherical protruding part protruding towards one side of the air port and the remaining part protruding towards the other side of the air port; a wind port opening / closing ball 160 having balls with the same radius as the radius of the hemispherical protruding part formed inside the ball net, which slides inside the ball net when wind pressure acts and opens and closes the air port depending on the position of the rotating blades when the wind blows; and a power generation device M which engages with the rotor fixed shaft to produce electricity.

[0015] In addition, the air vent 140 may be formed in a circular or rectangular shape, and one side of the air vent may be formed with a rectangular air vent opening / closing door 250 that selectively opens and closes depending on the position of the rotor when wind pressure acts on the air vent. The air vent 140 may be formed in a rectangular shape, and both sides of the air vent may be formed with a pair of air vent opening / closing doors 250 that selectively opens and closes depending on the position of the rotor when wind pressure acts on the air vent. The rotor 130 is formed with a rectangular air vent 140, a hexahedral plate net 260 is formed in the air vent, and a pair of plate guide rails 270 are formed inside and below the plate net, and an air vent opening / closing plate 280 having a guide groove 282 to be inserted into the plate guide rail is connected to the plate guide rail so as to be able to slide back and forth, and when wind pressure acts on the air vent, the air vent opening / closing plate moves back and forth along the plate guide rail depending on the position of the rotor to selectively open and close the air vent. Effect of the Invention

[0016] According to the present invention, an air port is formed in the rotor, and the air port is opened and closed depending on the direction of the wind, so that when the rotor is in a position to accelerate relative to the direction of the wind, the air port is open, and when the rotor is in a position to decelerate, the air port is closed, and the speed of the rotor fixed shaft to which the rotor is fixed becomes relatively faster than when there is no air port.

[0017] In addition, by stacking the generators in multiple stages, like a tower, which consists of a fixed shaft, rotor, rotor fixed shaft, and power generating device, more wind power can be obtained in the same space. Even though the generators are stacked in multiple stages, they are structurally more stable, and the structural stability of the piezoelectric machine can be ensured even against strong wind pressure. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is a diagram showing a rotor of a vertical axis wind power generator connected to a rotor shaft according to a first embodiment of the first scheme of the present invention. [Diagram 2] FIG. 1 is a plan view of a rotor of a vertical axis wind power generator connected to a rotor shaft according to a first embodiment of the first scheme of the present invention. [Diagram 3]FIG. 10 is a diagram showing the rotor blades of a vertical axis wind power generator connected to a rotating shaft according to a second embodiment of the first scheme of the present invention. [Figure 4] FIG. 11 is a diagram showing a rotor equipped with a hemispherical plate membrane according to a third embodiment of the first system of the present invention. [Diagram 5] FIG. 11 is a diagram showing the rotor blades of a vertical axis wind power generator connected to a rotating shaft according to a fourth embodiment of the first aspect of the present invention. [Figure 6] FIG. 11 is a diagram showing the rotor blades of a vertical axis wind power generator connected to a rotating shaft according to a fifth embodiment of the first aspect of the present invention. [Figure 7] FIG. 2 is a side view of the vertical axis wind power generator of the present invention formed in multiple stages. [Figure 8] FIG. 2 is a cross-sectional view of a wind guide plate that is installed at regular intervals and penetrates four pillars of the vertical axis wind power generator of the present invention. [Figure 9] FIG. 2 is a cross-sectional view of a vertical axis wind power generator according to the present invention, which is formed in multiple stages. [Figure 10] FIG. 11 is a side view of the plate net and the air vent opening and closing plate attached to the rotor according to the seventh embodiment of the first method of the present invention. [Figure 11] FIG. 13 is a side view of a rotor, an air outlet damper attached to the rotor's air outlet, and an air outlet damper actuator according to an eighth embodiment of the first aspect of the present invention. [Figure 12] FIG. 2 is a side view of the air outlet damper actuator of the present invention; [Figure 13] FIG. 2 is an exploded view of the air outlet damper actuator of the present invention; [Figure 14] FIG. 2 is a plan view of the air outlet damper actuator of the present invention; [Figure 15] FIG. 2 is a cross-sectional view of the underwater floating body of the present invention. [Figure 16] FIG. 2 is a plan view of the underwater floating body of the present invention. [Figure 17] FIG. 2 is a diagram showing a form in which the power generation facility of the present invention is connected to an underwater floating body. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] The present invention will be described in detail below with reference to the accompanying drawings.

[0020] As shown in Figures 1 and 2, a fixed shaft 110 is provided that is vertical to the ground. A rotor fixed shaft 120 that rotates around the fixed shaft is coupled to the fixed shaft 110. Four rotors 130 of the same size and shape are coupled to the rotor fixed shaft 120 at 90° intervals. The rotors 130 are formed in a trapezoidal shape that gradually becomes wider from the part coupled to the rotor fixed shaft 120 towards the tip. This is to increase the rotational force of the rotor fixed shaft when wind pressure is applied to the rotors.

[0021] The rotational force of the rotor 130 increases as it is subjected to wind pressure the farther it is from the rotor fixed shaft 120. To increase the area of ​​the portion where the rotational force acts, the width of the outer side is made larger than that of the inner side.

[0022] In addition, both the top and bottom ends and a certain portion of the outer vertical tip of the rotor 130 are curved inward. This allows the wind to gather without slipping when wind pressure acts on the rotor 130, and strengthens the structure to prevent the rotor from bending or deforming when it receives strong wind pressure.

[0023] A large circular air hole 140 is formed in the rotor 130. The air holes 140 are formed at the same position on all four rotors. The air holes 140 are formed slightly eccentrically outward from the center of the rotors to prevent them from interfering with each other when the ball net frame described below is formed.

[0024] The air outlet 140 may be a single relatively large air outlet formed on the rotor blade, or a number of relatively small air outlets may be formed on the rotor blade.

[0025] A ball net 150 is formed in the air outlet 140. The ball net 150 is formed by arranging several wire-like ball net frames 152 in a cylindrical shape, bending both ends of the ball net frame 152 into a hemispherical shape, and then connecting them together. The ball net 150 is fixed to the air outlet 140 at the point where the hemispherical part and the cylindrical part meet. Therefore, only the hemispherical part of the ball net 150 protrudes in one direction of the air outlet 140, and the remaining part protrudes in the opposite direction.

[0026] An air port opening / closing ball 160 having a diameter 0 to 2 mm smaller than the radius of the hemispherical portion is inserted into the ball net 150. The air port opening / closing ball 160 may be inserted in advance when the ball net 150 is manufactured, or the air-deflated air port opening / closing ball 160 may be inserted into the space between the ball net frames 152 after the ball net 150 is manufactured so that air can be let in and out like a soccer ball, and then air may be pumped into the air to create a spherical air port opening / closing ball 160.

[0027] A power generating device M is provided on one side of the fixed shaft 110, and the rotor blade fixed shaft 120 and the power generating device M are engaged with each other so that electricity is generated when the rotor blade fixed shaft 120 is rotated.

[0028] The operation of the first embodiment of the first type of the wind power generator according to the present invention configured as described above will be described below.

[0029] As shown in FIG. 1, when wind blows from a direction perpendicular to the horizontal plane of rotors (1) and (3), rotor fixed shaft 120 is designed to rotate only clockwise, so that wind pressure is concentrated and acts on rotors (1) and (3) 130, which are perpendicular to the wind direction, and almost no wind pressure acts on rotors (2) and (4) 130, which are horizontal to the wind direction.

[0030] Theoretically, if the same wind pressure were to act on rotor 130 (1) and rotor 130 (3), they would not rotate. However, because rotor 130 is bent inward at both the top and bottom ends and a part of the outer vertical tip so that it can receive the wind, rotor 130 rotates clockwise.

[0031] When wind pressure acts on rotor No. (1), air port opening / closing ball 160 in ball net 150 slides forward along ball net frame 152 of ball net 150 to close air port 140. Because the radius of the hemispherical part of ball net 150 is set to be the same as the radius of air port opening / closing ball 160, the outer surface of air port opening / closing ball 160 comes into close contact with the hemispherical part of ball net 150, completely closing air port 140.

[0032] Since the air port opening / closing ball 160 moves along the ball net frame 152 of the ball net 150 to block the air port 140 instantaneously, the air port opening / closing ball 160 immediately moves along the ball net frame 152 to block the air port 140 the moment wind pressure acts on it.

[0033] When the air outlet 140 is blocked, the rotor 130 receives wind pressure of approximately the same magnitude as when the air outlet 140 is not formed.

[0034] When wind pressure acts on rotor 130 No. (3), air port opening / closing ball 160 in ball net 150 moves forward along ball net frame 152 of ball net 150, opening air port 140. Even if air port opening / closing ball 160 is blocking air port 140, when wind pressure acts on ball net 150, it moves along ball net frame 152 of ball net 150 to the hemispherical part in the opposite direction. In other words, the wind pressure acting on rotor 130 No. (3) is relatively small due to open air port 140. Because the wind pressure acts small in proportion to the width of air port 140, the larger air port 140 is, the smaller the wind pressure acting on rotor 130 No. (3).

[0035] Here, the third rotor 130 is the main cause of a decrease in the rotation speed of the rotor 130 since the wind pressure acts in the opposite direction to the clockwise rotation of the entire rotor 130, but the decrease in the rotation speed of the entire rotor 130 is relatively small since the effect of the wind pressure is reduced by the width of the air outlet 140. In other words, the greater the difference in the magnitude of the wind pressure acting on the first rotor 130 and the third rotor 130, the faster the rotation speed of the entire rotor 130 becomes.

[0036] When wind blows from a direction perpendicular to the horizontal plane of rotors (1) and (3) 130, rotors (2) 130 and rotors (4) 130 are hardly affected by wind pressure because the wind pressure is horizontal to the wind direction. As described above, when wind blows, rotor (1) is at 90°, rotor (2) is at 0°, rotor (3) is at 90°, and rotor (4) is at 0° to the wind direction. In other words, all rotors 130 are always positioned between 0° and 90° to the wind direction.

[0037] Since the rotors are set to rotate clockwise, the rotors 130 located on the left side of the rotors 130 (2) and (4) which are parallel to the wind direction function in a normal manner to rotate the rotor fixed shaft 120, while the rotors 130 located on the right side function in an inverse manner.

[0038] However, if wind blows from a direction perpendicular to the horizontal plane of the rotor 130 (1) and (3), the port opening / closing ball 160 maintains the port closed when the rotor 130 is on the left side based on the wind direction, and the port 140 is open when the rotor 130 is on the right side. Therefore, if the rotor is in a position that functions normally when the rotor fixed shaft 120 rotates, the port will be closed, and if the rotor 130 is in a position that functions inversely when the rotor fixed shaft rotates, the port 140 will open and the rotation speed of the rotor 130 will be reduced to a smaller value than when the port 140 is not present.

[0039] Although the rotors (1), (2), (3), and (4) have been described separately, in reality, when the wind blows, the rotors 130 make a circular motion and lose directionality. However, regardless of the direction of the wind, the same principle applies to the four rotors 130, and the air outlets 140 of the rotors 130 that are in a position that functions properly to rotate the rotor fixed shaft 120 are blocked, and the air outlets 140 of the rotors 130 that are in a position that functions inversely are opened, so that the rotation speed of the rotor fixed shaft 120 can be increased significantly compared to when the air outlets 140 are not present.

[0040] If the rotation speed of the rotor fixed shaft 120 is increased, the efficiency of the power generating device M consisting of a stator and a rotor connected thereto increases.

[0041] 3 shows a second embodiment of the first method of the present invention, which has three rotors, unlike the first embodiment. When the rotor 130 is on the left side of the wind direction, the air port opening and closing ball 160 keeps the air port closed, and when it is on the right side, the air port 140 is open. That is, regardless of the number of rotors 130, the air port 140 of the rotor 130 at the position where the rotor fixed shaft 120 is accelerated is closed, and the air port 140 of the rotor 130 at the position where the rotor fixed shaft 120 is decelerated is opened, so that the rotor fixed shaft 120 rotates relatively faster than when the air port 140 is not present. In this way, the number of rotors 130 may be two, three, or several, but as long as the air port 140 is formed, the same principle as the first embodiment works.

[0042] The third embodiment of the first method of the present invention will be described below.

[0043] As shown in Fig. 4, the third embodiment differs from the first and second embodiments in that a hemispherical plate membrane 240 is fixed to a circular air port 140 formed in a rotor 130 instead of a ball net. The hemispherical plate membrane is hollow inside and is formed by combining three plate membrane wings 240a and protruding in one direction. Each plate membrane wing 240a is formed with a hinge 240b that is fixed to the air port and functions as an axis to open and close depending on the wind direction.

[0044] The hemispherical plate membrane 240 has a protruding portion on the rotor 130 located on the left side of the wind direction that receives the wind, causing the axial hinge attached to the plate membrane wing to not operate and the air port to be blocked, while the concave portion on the rotor wing located on the right side of the wind direction receives the wind, causing the axial hinge attached to the plate membrane wing to operate and the three plate membrane wings to spread out from the center and open the air port.

[0045] Since the rotors 130 located on the right and left sides of the wind direction both rotate clockwise, the rotors 130 located on the left side function in accordance with the rotation speed of the rotor fixed shaft 120, and the rotors 130 located on the right side function inversely with the rotation speed of the rotor fixed shaft 120. Therefore, the hemispherical plate membrane 240 attached to the rotor's air port maximizes the wind pressure difference between the two blades to increase the rotation speed of the rotor fixed shaft 120.

[0046] The fourth embodiment of the first method of the present invention will be described below.

[0047] 5, a rotor 130 is fixed to a rotor fixing shaft 120, and a rectangular air outlet 140 is formed on the rotor 130, which is different from the above embodiment. The air outlet 140 is provided with a pair of air outlet opening / closing doors 250 that open in only one direction and open on both sides based on the center.

[0048] The vent door 250 is connected to one side of the vent 140 by a hinge so that it can open in only one direction, and the hinge has a spring built in so that it can return elastically in only one direction.

[0049] A pair of air vent opening / closing doors 250 are fixed with opening prevention pins 251 at the top and bottom inner ends thereof, which are attached to the outer periphery of the air vent 140 and restrict the doors from opening in the opposite direction. Thus, the doors are restricted from opening in the opposite direction and are allowed to open only in the forward direction.

[0050] In this manner, as in each of the above-mentioned embodiments, the rotor 130 located on the left side of the direction in which the wind blows, based on the rotor fixed shaft 120, blocks the air port 140 and receives wind pressure only on the entire area of ​​the rotor 130, while the rotor 130 located on the right side opens the air port 140 and receives wind pressure only on the part of the rotor 130 minus the area of ​​the air port 140 alone, and the rotation speed becomes faster due to the difference in wind pressure acting on the rotor.

[0051] 6 shows a fifth embodiment of the first method, in which a rectangular air outlet 140 is formed in the rotor as in the fourth embodiment, but a rectangular air outlet tube 241 of the same size as the rectangular air outlet is fixed to the air outlet. The rectangular air outlet tube 241 has a small width, but is made wider than the thickness of the rotor frame, so that one end of the rectangular air outlet tube 241 protrudes from the inner side of the rotor 130 when fixed to the rotor's air outlet. An air barrier membrane 242 is attached to the inlet of the protruding rectangular air outlet tube in a form that blocks the air outlet.

[0052] An air barrier film hinge 243 having an axial function is formed on the upper part of the air barrier film, so that the air barrier film 242 opens and closes depending on the wind direction when the attached rotor 130 rotates.

[0053] The air barrier membrane 242 installed as described above is set so that the rotors rotate clockwise as in the first and second embodiments, so that the rotor (2) which is horizontal to the wind direction and the rotor located on the left side of the rotor (4) function in accordance with the rotation of the rotor fixed shaft 120, and the rotor located on the right side functions inversely.

[0054] During normal operation, the air barrier membrane 242 does not open, increasing the wind pressure, and during reverse operation, the air barrier membrane 242 opens, decreasing the wind pressure, causing the rotor blade fixing shaft 120 to rotate clockwise.

[0055] The sixth embodiment of the first method of the present invention will be described below.

[0056] 7, 8 and 9, four rotor fixed shafts 120 are coupled to a fixed shaft 110 via a rotating shaft. Four pillars 220 are erected at positions spaced at regular intervals in the circumferential direction around the fixed shaft 110. When the center points of the pillars 220 are connected to each other by a line, they form a square or rectangle when viewed from above.

[0057] Five cone-shaped wind guide plates 210 are formed at regular intervals on the support 220. The outer circumference of the wind guide plates 210 is connected to the support 220 fixed to the ground at 90° intervals, forming a tower-like structure. As the wind guide plates 210 are supported at four points, the force is dispersed even when wind pressure is applied, making the structure more stable than when there is only one support 220.

[0058] 8, the wind guide plate 210 has a rotor fixed shaft groove 210a formed in the center into which the rotor fixed shaft 120 is inserted, has a conical cross section, and is open inside. The wind guide plate 210 has an inclination of 5 to 30° above the horizontal plane, and conversely, has an inclination of -5 to -30° below. The greater the inclination, the greater the difference in height between the central part and the outer periphery, and the lower the inclination, the smaller the difference in height between the central part and the outer periphery.

[0059] The fixed shaft 110 is rotatably coupled to the wind guide plates 210 and the rotor fixed shaft 120 between the wind guide plates 210. Since there are five wind guide plates 210, four rotor fixed shafts 120 are formed.

[0060] The rotor blade fixing shaft 120 is provided with the rotor blades 130, the air outlet 140, the ball net 150, and the air outlet opening / closing ball 160 in the same structure as in the first embodiment.

[0061] The rotor fixed shaft 120 is engaged with a power generating device M consisting of a stator and a rotor formed inside the wind guide plate 210, and the rotation of the rotor fixed shaft 120 operates the power generating device M to generate electricity.

[0062] The seventh embodiment of the first method according to the present invention will be described below.

[0063] 10, as in the first embodiment, the rotor 130 coupled to the rotor fixed shaft 120 has an air port 140, but the air port 140 is rectangular and a hexahedral plate net 260 is formed in the air port 140. The plate net 260 is formed by connecting a number of angles to form a hexahedron, and the total area of ​​the angles is relatively small compared to the area occupied by the hexahedron, allowing air to pass easily between the angles.

[0064] A pair of plate guide rails 270 are formed on the top and bottom of the inside of the plate net 260. An air vent opening and closing plate 280 is coupled to the plate guide rails 270. The air vent opening and closing plate 280 is a rectangular plate the same size as the air vent so as to completely close the air vent 140, and guide grooves 282 are formed on the top and bottom ends to be inserted into the plate guide rails. Therefore, the plate net 260 moves while sliding back and forth along the plate guide rails 270 due to the wind.

[0065] When wind blows, the air port opening / closing plate 280 of the rotor 130 located on the left side of the direction in which the wind blows based on the rotor fixed shaft 120 moves instantly along the plate guide rail 270 to the tip of the plate guide rail 270 due to wind pressure, thereby blocking the air port 140, and the air port opening / closing plate 280 of the rotor located on the right side moves instantly along the plate guide rail 270 to the front part of the plate guide rail 270 due to wind pressure, thereby opening the air port 140.

[0066] In this manner, as in the first embodiment, the air port opening / closing plate 280 closes the air port 140 on the rotor 130 located on the left side of the direction in which the wind blows, based on the rotor fixed shaft 120, and receives wind pressure only on the entire area of ​​the rotor 130, while the air port 140 on the rotor located on the right side opens the air port 140 and receives wind pressure only on the part of the rotor 130 minus the area of ​​the air port 140 alone, and the rotor rotates faster due to the difference in wind pressure acting on the rotor 130.

[0067] The eighth embodiment of the first method according to the present invention will be described below.

[0068] 11, the size of the air outlet 140 formed in the rotor 130 is larger than that of the other embodiments. Most of the area of ​​the rotor 130 is occupied by the rectangular air outlet, and a damper of the same size and shape is installed in the air outlet 140 to open and close the air outlet 140.

[0069] As described above, the damper installed in the air port 140 of the rotor 130 is called the air port damper 290. Air port damper 290 has a rotation shaft 291 formed vertically at its center, and upper and lower ends of the rotation shaft 291 are rotatably attached to the upper and lower inside of the center of the air port 140 formed in the rotor 130, and rotates around the rotation shaft 291 between 0 and 90°.

[0070] As described above, the wind port damper 290 attached to the wind port 140 closes the wind port 140 when the rotor is located on the left side of the wind direction by the wind port damper actuator 300, and opens the wind port 140 when the rotor is located on the right side.

[0071] 12, 13 and 14 are side and plan views of the wind port damper actuator 300. The wind port damper 290 attached to the wind port 140 of the rotor 130 is opened and closed by the wind port damper actuator 300.

[0072] The wind port damper actuator 300 is formed of a wind port damper actuator housing 300a, a wind port damper operating bar 300b, a wind port damper electric motor 300c, a wind force sensor 300d, and a power transmission bar 300e.

[0073] The air vent damper operating bar 300b is connected to an air vent damper electric motor 300c built into the air vent damper actuator 300, and its tip protrudes out of the air vent damper actuator housing 300a. A power transmission bar 300e is fixed to the protruding part, and the tip of the power transmission bar 300e is fixed to one side of the upper part of the air vent damper 290, so that the operating force of the air vent damper operating bar 300b is transmitted to the air vent damper 290 to open and close the air vent 140.

[0074] The operation of the wind port damper electric motor 300c is controlled by a wind force sensor 300d that detects wind force and an actuation module 300f, and the wind force sensor 300d is attached to the front and rear of the wind port damper actuator housing 300a, respectively.

[0075] The operation of the eighth embodiment will be described as follows.

[0076] With respect to the wind direction, the rotors 130 are on the left side, and rotor number (1) 130 which is perpendicular to the wind direction and rotor number (3) 130 on the right side are perpendicular to the wind direction and therefore receive more wind pressure, whereas rotor number (2) 130 and rotor number (4) 130 are formed in a row in the same direction as the wind direction and therefore receive less wind pressure.

[0077] The air outlet damper actuator housing 300a installed at the top center of the rotor 130 No. (1) has a back surface that receives wind and activates the wind force sensor 300d attached to the back surface, causing the air outlet damper 290 to close the air outlet 140 of the rotor 130. The air outlet damper actuator housing 300a installed at the top center of the rotor 130 No. (3) has a front surface that is exposed to the wind and activates the wind force sensor 300d attached to the front surface, causing the air outlet damper 290 to open the air outlet 140.

[0078] Therefore, the (1) rotor 130 generates the maximum fair wind force and the (3) rotor 130 generates the minimum headwind force, so that the rotor fixed shaft 120 generates the maximum rotational force.

[0079] Since the (2) rotor 130 and the (4) rotor 130 are formed in line with the wind direction, they are not subjected to wind pressure or are subjected to it only weakly, so the wind force sensor 300d attached to the air outlet damper actuator housing 300a does not operate, and the basically set angle between the rotor 130 and the air outlet damper 290 remains unchanged.

[0080] The above description focuses on a short point in time and explains it as it is. Since the rotor fixed shaft 120 continues to rotate, the positional changes of each rotor 130 are repeated continuously.

[0081] Since the rotor fixed shaft 120 is set to rotate clockwise, for convenience, the rotor 130 located on the left side, which receives more wind force based on the wind direction, and the rotor 130 located on the right side are distinguished as the rotor 130 located vertically or horizontally depending on the wind direction and is not or is less affected by the wind force.

[0082] The embodiment of the second method according to the present invention will be described below.

[0083] The examples of the first method explained so far involve installing wind turbines on land, such as in mountainous or island regions where there is a lot of wind, to generate electricity, whereas the second method involves installing wind turbines on the sea near a coast where there is a lot of wind, or far out in the ocean, to generate electricity.

[0084] The power generation facility, power generation process, and procedures of the second method installed on the sea are similar to those of the first method, except that the power generation facility is installed floating on the sea instead of on land, and therefore requires a separate floating facility, the underwater floating body 310.

[0085] 15 and 16 are a cross-sectional view and a plan view of the underwater floating body 310.

[0086] The underwater floating body 310 is hollow and sealed inside, and is composed of four long cylindrical cylindrical floating body connecting frames 310c installed at regular intervals in four directions, a cylindrical floating body 310b, and an underwater floating body connecting ring 310d whose ring-shaped parts are connected by an underwater floating body connecting bar 311 formed at the lower end and excavated into the seabed and formed to protrude upward, and an underwater floating body support connecting frame 310a is formed on the upper part of the cylindrical floating body 310b to seat and connect the support 220 of the power generation facility.

[0087] The underwater floating body 310 is hollow and sealed inside, and floats on the surface of the sea by the buoyancy of four cylindrical floating bodies 310b formed in a long cylindrical shape, and a power generation facility such as that in each embodiment of the first method is anchored and fixedly connected to it.

[0088] As described above, since the float is suspended in the water, it is not completely upright, so it is fixed and kept upright by four underwater float connection bars 311 that are separately drilled into the seabed and protruded upward.

[0089] The end of the underwater floating body connecting bar 311 is formed in a ring shape and can be connected or separated.

[0090] FIG. 17 is a cross-sectional view of a first type of power generation facility connected to an underwater floating body 310.

[0091] The four underwater floating bodies are drilled into the seabed and protrude upwards, and are connected and fixed by four underwater floating body connecting bars 311 to stand vertically and generate electricity.

[0092] The operation of the vertical axis wind power generator according to each embodiment of the present invention configured as above will be described below.

[0093] When the wind blows, the wind flows between the wind guiding plates 210 and is guided, and the wind speed is slightly accelerated before acting on the rotor 130. In particular, the wind guiding plates 210 allow the wind to be concentrated on the rotor 130 without being dispersed.

[0094] When wind pressure is applied to the rotor 130, as in the first embodiment, the air port 140 of the rotor 130 located on the left side of the direction from which the wind is blowing is blocked by the air port opening / closing ball 160 which instantly moves along the ball net frame 152 of the ball net 150, so that the entire area of ​​the rotor 130 receives the wind pressure and generates a rotational force. Conversely, the air port 140 of the rotor 130 located on the right side is opened by the air port opening / closing ball 160 which instantly moves along the ball net frame 152 of the ball net 150, so that only the part of the entire area of ​​the rotor 130 minus the area of ​​the air port 140 receives the wind pressure and a wind pressure in the opposite direction acts, so that the rotor fixed shaft 120 rotates relatively faster than when the air port 140 is not present.

[0095] When the rotor fixed shaft 120 rotates, a power generating device M consisting of a stator and a rotor engaged with it at the upper and lower ends is operated to generate electricity.

[0096] Since the system is made up of four individual generators in a multi-tiered configuration, the total amount of electricity generated is four times the amount produced by each individual generator. In this way, the more individual generators are stacked in a tower, the more electricity is produced.

[0097] The biggest problem when increasing the number of individual generators is whether the generator as a whole can withstand the wind pressure it receives, but because the wind guide plate 210 is fixed to supports not only at the center but also at four points on the periphery of the wind guide plate 210, when wind pressure acts on it, the wind pressure is dispersed to each support. In addition, because the wind guide plate 210 is integrated and cone-shaped, it does not bend or twist when an external force (wind pressure) acts on it, and therefore can withstand wind pressure well.

[0098] In the eighth embodiment, most of the rotor 130 is formed with a rectangular air port 140, and an air port damper 290 of the same size and shape as the air port is formed in the air port 140. When the left and right rotors 130 are positioned perpendicular to the wind direction based on the wind direction, the wind force sensor 300d is operated according to a program set in the operation module 300f, and the air port damper 290 opens and closes the entire air port 140, thereby maximizing the sensitivity of the rotor 130 to fair wind force and minimizing the sensitivity to adverse wind force, thereby maximizing the rotational force of the rotor fixed shaft 120. [Explanation of symbols]

[0099] 110: Fixed shaft 120: Rotor fixed shaft 130:Rotor blade 140:Wind mouth 150: Ball net 152: Ball net frame 160: Air vent opening and closing ball 210: Wind guide plate 210a: Rotor fixing shaft hole 210b: Post hole 220: Post 240: Hemispherical lamina 240a: lamina wing 240b: Wing hinge 241: Square wind spout 242: Air barrier membrane 243: Air barrier membrane hinge 250: Wind vent opening and closing door 251: Opening prevention pin 252: Opening and closing door elastic fixing member 260: Net 270: Pin guide rail 280: Vent opening and closing plate 282: Guide rail groove 290: Air outlet damper 291: Air outlet damper rotating shaft 300: Air outlet damper actuator 300a: Air outlet damper actuator housing 300b: Wind port damper operating bar 300c: Wind port damper electric motor 300d: Wind sensor 300e: Power transmission bar 300f: Operating module box 310: Underwater floating body 310a: Underwater floating body support column connection frame 310b: Cylindrical floating body 310c: Cylindrical floating body connecting frame 310d: Underwater floating body connecting ring 311: Underwater floating body connecting bar 312: Connecting bar fixing frame 313: Connecting bar drilling frame M: Generator

Claims

1. In a vertical axis wind turbine, the rotating shaft is placed perpendicular to the ground, which is the direction from which the wind blows. A fixed shaft (110) that can be set up on the ground; A rotor fixed shaft (120) rotatably connected to the fixed shaft; At least two rotors (130) coupled to the rotor stationary shaft; An air outlet (140) formed in each of the rotor blades; a ball net (150) connected to the air outlet, which is cylindrical with both ends protruding in a semi-spherical shape and an open interior, with only one hemispherical protruding portion protruding from one side of the air outlet and the remaining portion protruding from the other side of the air outlet; A ball having the same radius as the radius of the hemispherical protruding part is formed inside the ball net, and slides inside the ball net when wind pressure acts on it, and opens and closes the air port according to the position of the rotating blades that rotate when the wind blows (160); A power generating device (M) that is engaged with the rotor fixed shaft to generate electricity; A vertical axis multi-stage wind power generator comprising:

2. A fixed shaft (110) that can be set up on the ground; A conical wind guide plate (210) formed in multiple stages on the fixed shaft; a support (220) that is set on the ground at a certain distance from the fixed shaft and is connected to the outer periphery of the wind guide plate in at least three pieces to strengthen the structure so as to withstand a relatively strong wind pressure; A plurality of rotor stationary shafts (120) rotatably coupled to the stationary shaft; At least two rotors (130) are connected to the rotor fixed shaft and positioned between the wind guide plates; An air outlet (140) formed in each of the rotor blades; a ball net (150) connected to the air outlet, having a cylindrical shape with both ends protruding in a hemispherical shape and an open interior, with only one hemispherical protruding portion protruding from one side of the air outlet and the remaining portion protruding from the other side of the air outlet; A ball having the same radius as the radius of the hemispherical protruding part is formed inside the ball net, and slides inside the ball net when wind pressure acts on it, and opens and closes the air port according to the position of the rotating blades that rotate when the wind blows (160); A power generating device (M) that is engaged with the rotor fixed shaft to generate electricity; A vertical axis multi-stage wind power generator comprising:

Images