WO2022254949A1 - Dispositif de production d'énergie éolienne - Google Patents

Dispositif de production d'énergie éolienne Download PDF

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Publication number
WO2022254949A1
WO2022254949A1 PCT/JP2022/016483 JP2022016483W WO2022254949A1 WO 2022254949 A1 WO2022254949 A1 WO 2022254949A1 JP 2022016483 W JP2022016483 W JP 2022016483W WO 2022254949 A1 WO2022254949 A1 WO 2022254949A1
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Prior art keywords
wind
wind turbine
generator
vibration
power generation
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PCT/JP2022/016483
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English (en)
Japanese (ja)
Inventor
滋 安藤
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Ｔｏｐｗｉｎｄ株式会社
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Priority to JP2023525638A priority Critical patent/JPWO2022254949A1/ja
Publication of WO2022254949A1 publication Critical patent/WO2022254949A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Definitions

  • the present invention relates to a wind power generator, and more particularly to a small wind power generator that can be charged from low wind speeds and that can be used on a daily basis regardless of the installation location.
  • Wind can be said to be a form of solar energy that has changed on Earth.
  • the basic method of using this wind energy is to convert it into rotational torque of mechanical motion using a windmill and take it out.
  • This rotational torque rotates a generator to generate electricity.
  • the turbine rotates at high speed inside a sealed container. will rotate slowly.
  • Wind turbines are broadly classified into horizontal axis wind turbines and vertical axis wind turbines depending on whether the rotation axis of the wind turbine is placed horizontally or vertically.
  • Vertical axis wind turbines are characterized by the fact that they do not require a directional control mechanism to track the wind direction of the rotating surface of the wind turbine and that a heavy generator can be placed close to the ground.
  • the propeller type is called a horizontal axis type wind turbine because the rotation axis of the blades is horizontal. In terms of hydrodynamics, it is said that the fewer the number of blades in a wind turbine, the faster it rotates. Some wind turbines have one or two blades to rotate at high speed, but three blades are generally well-balanced. overwhelmingly used. Five or six blades are sometimes used to increase rotational torque rather than rotational speed.
  • the propeller type has excellent characteristics for high-speed rotation, but on the other hand, there are problems such as loud noise, loss of efficiency due to swinging motion, and slightly high wind speed (3 to 4 m/s) at the start of power generation.
  • propeller-type wind turbines are the most popular among wind power generators, and are widely used from micro wind turbines to large wind turbines.
  • Multi-blade wind turbine A multi-blade wind turbine has a large number of blades (for example, about 20 blades). Due to the large number of blades, this wind turbine has a low rotation speed, but is characterized by a relatively large torque. . Multi-blade windmills have strong rotational torque, are quiet, and can be easily installed and repaired.
  • (C) Savonius Wind Turbine A representative vertical axis wind turbine is the Savonius wind turbine. It consists of two semi-cylindrical blades, and the left and right blades are staggered and combined in the circumferential direction, leaving some overlapping portions. Therefore, by allowing the wind that passes between the two buckets (half-divided cylinders) to flow into the back of the bucket on the opposite side, it becomes a force that suppresses the pushing action in the direction of rotation and the resistance of the headwind, increasing the rotation efficiency. ing. Unlike the propeller-type wind turbines, which use the "lift” of the wind, this windmill is largely different in that it mainly uses the "drag". Therefore, the peripheral speed ratio is approximately 1, the rotational speed is low, the sound is quiet, and the rotational torque is relatively large. It is characterized by being able to rotate regardless of the direction of the wind.
  • (D) Darrieus wind turbine There is also a Darrieus wind turbine as a vertical axis wind turbine. Two or three blades are used, and unlike the Savonius type that uses drag, it is a lift type, so it is characterized by a very high number of revolutions. In addition, since it is irrelevant to the direction of the wind, a rudder is not necessary. Therefore, various ideas have been tried, such as starting with a motor or combining with a Savonius type wind turbine to improve the starting performance.
  • (E) Cross-flow type wind turbine
  • a large number of elongated curved blades are provided on the outer peripheral edge of the upper and lower discs at an appropriate angle at equal intervals, and the external wind flows through the internal cavity through the gaps between the blades.
  • It is a wind turbine that rotates in a fixed direction while discharging to the outside from the gap between the blades on the opposite side (downwind). It is omnidirectional to the wind and rotates with wind from all directions. When the wind comes from the front, the left half of the wind acts effectively in the direction of rotating the windmill, but the right half of the wind acts as a resistance to the rotational movement, and has the characteristic that the starting torque is large, but the rotation speed is low. don't grow. Since the rotation speed is low, the rotation torque is high, and the noise is extremely quiet.
  • Propeller-type wind turbines have a low torque coefficient, but a high power coefficient and a high peripheral speed ratio, so they are often used for wind power generation.
  • the loss in the process of energy conversion from natural wind to mechanical rotating windmills is the largest.
  • Another advantage is that the speed-increasing gear ratio can be reduced compared to the drag type wind turbine.
  • propeller type and Darrieus type wind turbines are overwhelmingly used in wind power generation.
  • a drag-type Savonius wind turbine or the like may be used in addition to the propeller wind turbine.
  • the wind turbine's original power coefficient is low, and gears, belts, etc., increase the speed at a fairly large speed-up ratio to drive the generator, so additional loss is added, and the efficiency of the system as a whole is reduced. It becomes extremely low, and it can be said that it is unsuitable for wind power generation.
  • Wind energy is proportional to the cube of the area that receives the wind, the density of the air, and the wind speed. If the area exposed to the wind and the density of the air are constant, doubling the wind speed will increase the wind energy by eight times. For this reason, the windmills turn in the direction the wind is blowing so that they can always receive the maximum force from the wind.
  • the variable pitch works so that the windmill does not break, and the windmill does not rotate even if it receives the wind. In this way, wind power generation is highly efficient because it can convert approximately 40% of the kinetic energy of the wind into electrical energy.
  • Both horizontal axis wind turbines (propeller type) and vertical axis wind turbines have a type that uses lift force and a type that uses drag force.
  • the lift type the lift generated by the combined speed is used to generate rotational torque around the rotation of the wind turbine.
  • the upwind system has the advantage that the rotor is located on the windward side of the tower, so it is not affected by the wind turbulence caused by the tower.
  • the downwind method does not require a yaw drive to automatically match the direction of the propeller to the direction of the wind. have also been developed in recent years. The following five characteristics of horizontal axis wind turbines can be cited.
  • vertical axis wind turbine There are five features of vertical axis wind turbines. (1) The wind in any direction can be used and there is no wind direction dependency. (2) Heavy objects can be placed on the ground. (3) The blades are easier to manufacture than the propeller type. (4) Rotational speed control is difficult because a large rotational torque is required during self-starting. (5) Compared to horizontal axis wind turbines, they are less efficient and require a larger installation area.
  • the current small wind power generators have a small amount of electric power and are treated as teaching materials and monuments, and are hardly used as power generators.
  • the inventor has devised a small wind power generator for the purpose of high-safety, small-area, and high-efficiency power generation. has been produced.
  • Patent Documents 2 to 5 are inventions of the present inventors, and relate to wind power generators that automatically open and close blades by automatic control using suction force and centrifugal force without using sensors, brakes, etc. is.
  • the basic shape is a sphere to a cylinder, and the central axis and each blade are connected by weights, springs, hydraulic cylinders, gas cylinders, etc.
  • the tips of the blades move inside the wind turbine due to the attractive forces of the weights, springs, magnets, etc. It becomes a shape that tilts and catches the wind easily.
  • the tip of the blade returns to the outside (becomes spherical) due to the centrifugal force of the rotation, and the windmill does not receive the wind.
  • the number of revolutions decreases, the wind turbine again assumes the shape of the wind due to the suction force, and the wind turbine rotates safely and continues to generate power even in strong winds.
  • Patent Document 1 has a configuration different from the present invention in that it does not include (E) an anti-vibration mechanism attached between the wind turbine and the pedestal and (G) attitude control means. are different.
  • Japanese Patent No. 3172061 Japanese Patent No. 3204736 Japanese Patent No. 3204736 WO2019/153103AI Japanese Unexamined Patent Application Publication No. 2013-2351: In the present invention, the vibration prevention mechanism between the windmill center shaft and the generator is specified, whereas Patent Document 6 does not specify it.
  • Wind power generators especially vertical-axis wind power generators, are capable of generating power regardless of the direction of the wind, have the advantages of low noise levels and the ability to be downsized, and thus have the potential to become a favorite among small wind power generators. is doing.
  • it also has the disadvantage that the wind receiving part of the wind turbine is small and the amount of power generation is small.
  • the vertical axis wind turbine only one-fourth (90 degrees) of the wind turbine is the wind receiving part 65 that receives the fair wind.
  • the area exposed to the headwind is also one quarter (90 degrees) of the headwind section 66, and the rear portion is not (see FIG. 10).
  • safety Ensuring safety is also the most important issue. Particularly in the case of a small wind power generator, it is an important issue to prevent accidents such as getting fingers caught in the wind power generator and to ensure a high degree of safety so that the wind power generator can be touched by hand. It is also an important safety issue to prevent damage to the wind turbine generator during strong winds.
  • the problem to be solved by the present invention is to provide a small wind power generator capable of not only generating power at low wind speeds but also charging the battery with a sufficient voltage value.
  • Another object of the present invention is to provide a small vertical axis type wind power generator that can be used on a daily basis regardless of the installation location and that can generate power safely and efficiently.
  • the present invention (1) The following (A) to (E): (A) a wind collecting portion (B) a wind turbine having a plurality of blades; (C) windmill central axis, (D) a generator; and (E) an anti-vibration mechanism mounted between the wind turbine and the pedestal; a wind turbine generator comprising The following (F) to (G): (F) a frame on which the wind power generation mechanism is mounted; (G) a wind power generator including a wind power generator support mechanism including attitude control means, The wind power generation mechanism is either a vertical axis wind power generation mechanism or a horizontal axis wind power generation mechanism, The wind power generator is characterized in that the posture control means is posture control means for controlling the posture of the wind power generation mechanism or the posture of the mount in a horizontal direction or a vertical direction.
  • the wind power generation mechanism is a vertical axis wind power generation mechanism, and the wind collection part is formed by gathering a plurality of tubular ducts so as to surround the wind turbine, and the tubular duct has an outlet.
  • the tubular duct is oriented at an angle to the direction of the central axis of the wind turbine, and the tubular duct has vertical walls formed of air collecting plates having an R shape and horizontal walls formed of doughnut-shaped plates (flanges).
  • the wind turbine generator according to (1) above is characterized in that it is a tubular duct in which a tubular ventilation passage is formed by squeezing.
  • Wind collector The wind power system according to (2) above, wherein the air collecting duct is formed such that the inside diameter of the air collecting duct becomes smaller as the air collecting duct progresses from the air collecting duct inlet to the air collecting duct outlet.
  • the Company provides power generation equipment. Thereby, the wind whose wind speed has accelerated can be discharged to the windmill.
  • Wind collector The wind power generator according to (3) is provided, in which the wind collecting duct is formed in a plurality of stages vertically. This doubles the spoon effect, and accelerated wind can be discharged to the windmill.
  • Windmill The wind power generator according to (3) above is characterized in that the wind turbine is a sirocco wind turbine with upper and lower lids attached to the top and bottom and a partition in the middle. As a result, the air pressure inside the windmill is lowered, the air outside the windmill is drawn into the windmill, and the rotation of the windmill becomes easier.
  • the anti-vibration mechanism is A first anti-vibration mechanism provided between the generator and the pedestal,
  • the first anti-vibration mechanism secures the flexibility of the wind turbine center shaft and prevents vibration due to the rotation of the wind turbine by attaching an anti-vibration rubber between the supporting member on the generator side and the supporting member on the pedestal side.
  • the wind turbine generator according to (1) is provided, which is a vibration prevention mechanism.
  • the anti-vibration mechanism is A second vibration prevention mechanism provided between the windmill and the generator
  • the second anti-vibration mechanism is a second anti-vibration mechanism in which anti-vibration rubber is installed between the wind turbine and the generator, or the second anti-vibration mechanism comprises the wind turbine and the generator.
  • the anti-vibration mechanism is a first anti-vibration mechanism in which anti-vibration rubber is attached between the base bracket and the pedestal;
  • a second type of vibration prevention that attaches vibration-isolating rubber between the windmill and the generator or attaches the windmill to the generator by connecting it with a coupling (shaft joint) that has a vibration-absorbing structure with rubber or resin sandwiched between them.
  • the wind turbine generator described in (1) above is provided with both the anti-vibration mechanism and the anti-vibration mechanism.
  • attitude control means (10) (attitude control means) (wind turbine guide and telescopic mechanism) further comprising attitude control means for the pedestal;
  • a wind turbine guide is installed around the wind power generator, The wind power generator according to any one of (1) to (10) above, wherein the attitude control means of the mount is an expansion mechanism that vertically moves the wind power generation mechanism higher than the height of the wind turbine guide. Provide equipment.
  • wind turbine guide and extension mechanism (vertical shaft type)
  • the wind turbine guide further has an opening/closing adjustment mechanism for the slit space (gap), It is possible to adjust the amount of wind received by the wind power generation mechanism,
  • the wind turbine generator described in 10 above is provided.
  • the telescopic mechanism has a hollow cylindrical pillar installed vertically from the installation surface on which the wind power generator is installed, and the wind power generator of the present invention has a standpipe formed at the bottom thereof, and the standpipe is formed on the bottom of the wind power generator.
  • the posture control means is installed so that the wind power generation mechanism is vertically expanded and contracted by an expansion and contraction mechanism that fits into the hollow cylindrical column of the above and controls the posture.
  • a wind turbine generator is provided.
  • the effects of the present invention are as follows. 1. (Effect of newly shaped wind collector) By forming the guide of the wind collecting plate into an R shape, the strength of the wind collecting portion of the wind turbine generator can be increased. In addition, it can have a shape that blocks headwinds and easily takes in fair winds. Since the air collecting portion has a duct structure and the air collecting plate has an R shape, the wind force can be further increased by the spoon effect.
  • a mechanism that secures the flexibility of the wind turbine central axis and prevents vibration has not been used in wind turbine generators to date. By ensuring the flexibility of the windmill central axis, the impact of gusts etc. will be mitigated and the strength of the central axis will be increased. In addition, it prevents transmission of vibrations to the lower part of the windmill, and also prevents loosening of the screws and the like of the connecting portion.
  • the structure can be simplified, the wind turbine can be easily removed, and the maintainability has improved.
  • Windmill installation method and windmill guide By adjusting the height of the windmill and adjusting the ratio of the slits in the windmill guide, the amount of wind received can be adjusted and the rotation of the windmill can be controlled. As a result, even in strong winds, safety can be ensured, and wind turbine rotation and power generation can be continued. In addition, the wind turbine guide can prevent the wind turbine from being damaged by flying objects or the like. A comprehensive effect of the wind turbine and the wind turbine guide can be exhibited.
  • FIG. 1A shows a normal state in which the wind turbine generator 1 is installed.
  • FIG. 1B shows a state in which the wind power generation mechanism is lowered in height and partially housed in the wind turbine guide 7 by the attitude control means.
  • 1 is an explanatory diagram of a wind power generation mechanism according to one embodiment of the present invention.
  • FIG. 2A is a cross-sectional view of the wind power generation mechanism, and
  • FIG. 2B is a front view of the wind power generation mechanism.
  • FIG. 2 is an explanatory diagram of a support mechanism for a wind turbine generator according to one embodiment of the present invention
  • 1 is a perspective view of a baffle plate 21 according to one embodiment of the present invention
  • FIG. FIG. 3 is a plan view for explaining the arrangement state of the air collecting plate 21 according to one embodiment of the present invention
  • the R (curved) shape of the air collecting plate 21 is an arc shape.
  • FIG. 5B shows an example of the cross-sectional shape of the air collecting plate 21 .
  • the R (curved) shape of the air collecting plate 21 (guide vane) may be various R (curved) shapes as illustrated in FIG. 5B.
  • 1 is a perspective view of a wind turbine 3 according to one embodiment of the present invention; FIG.
  • FIG. 7B is a cross-sectional view in which each component is developed.
  • FIG. 2 is a perspective view of a rubber vibration isolator of a joint portion of a power generator according to one embodiment of the present invention;
  • FIG. 4 is a cross-sectional view showing the arrangement of anti-vibration rubber provided between a base bracket and a mount in one embodiment of the present invention;
  • FIG. 3 is an explanatory diagram for explaining fair wind and head wind in a vertical axis wind turbine;
  • FIG. 10 is an explanatory view of housing the wind power generation mechanism PP in the wind turbine guide by the attitude control means;
  • FIG. 5 is an explanatory diagram for explaining a change in ratio of slit spaces of the wind turbine guide;
  • the wind power generator of the present invention includes a wind power generator including the following (A) to (E) and a wind power generator supporting mechanism including the following (F) and (G).
  • a windmill central axis 31 is the central axis of the windmill 3 and is shown in FIG.
  • the generator is 4, coupled with the wind turbine central shaft 31, shown in FIG.
  • the anti-vibration mechanism 43 attached to the generator is provided at two locations, the first anti-vibration mechanism and the second anti-vibration mechanism.
  • the second anti-vibration mechanism is a coupling 42 (located between the windmill and the generator) attached to the base bracket 24, which is the member that supports the generator 4 of FIG. 7, or Alternatively, it is the coupling 42 (anti-vibration rubber 45 between the base bracket 24 below the generator and the mount 57).
  • the first anti-vibration mechanism is a coupling 42 (positioned between the windmill and the generator) attached to the generator rotating shaft 41 of FIG.
  • the frame 51 is the mount 57 and the standpipe 52 in FIG.
  • Posture control means is a mechanism for moving the stand pipe 52 of FIG. 3 up and down within the main pipe 55 . By moving the stand pipe 52 up and down, the wind power generation mechanism mounted on the frame 51 moves up and down.
  • FIG. 1A shows a normal state in which the wind turbine generator 1 is installed.
  • FIG. 1B shows a state in which the wind power generation mechanism is lowered in height and partially housed in the wind turbine guide 7 by the attitude control means.
  • the wind power generation mechanism of the present invention is supported by a frame 51 and installed at an installation location.
  • the pedestal 51 is a support member for fixing the wind power generation mechanism (wind collector, wind turbine, wind turbine center shaft, power generator, and anti-vibration mechanism) to an installation location.
  • the pedestal 51 is not limited to a box-shaped pedestal, and a pillar-shaped, cylindrical, cylindrical, or kanzashi-shaped pedestal 51 can also be used.
  • a main pipe 55 that is a hollow cylindrical column corresponds to the mount 51 .
  • a main pipe 55 is formed at the bottom of the wind power generation mechanism of the present invention, and the stand pipe 52 is fitted to the main pipe 55, which is a hollow cylindrical column, so that the wind power generation mechanism slides up and down. 1A and 1B.
  • the wind power generation mechanism can be applied to either a vertical axis wind power generation mechanism or a horizontal axis wind power generation mechanism.
  • the attitude control means (F) can control the attitude of the wind power generation mechanism in the horizontal direction or the vertical direction.
  • Wind collector 2 As shown in FIGS. 4 and 5, the wind collecting section 2 of the wind power generation mechanism of the present invention is formed by collecting a plurality of tubular ducts 28 so as to surround the wind turbine.
  • the tubular duct 28 is a tubular ventilation passage formed by vertically arranged wind collecting plates 21 (guide vanes) and horizontally arranged doughnut-shaped plates (flanges 23). A plurality of tubular ducts 28 are gathered to surround the wind turbine to form the wind collecting section 2 .
  • the tubular duct 28 is also oriented with its outlet at an angle to the direction of the central axis of the wind turbine. As a result, the head wind hitting the windmill is cut off and the fair wind is easily taken in.
  • the air collecting plate 21 forming the left and right walls of the tubular duct 28 will be described. Forming the vertical walls of the tubular duct 28 is the baffle plate 21 . As shown in FIG. 4, the air collecting plate 21 is a component that constitutes the tubular duct 28, is arranged vertically, and has a vertically elongated plate shape. Further, as shown in FIG. 5, the air collecting plate 21 (also referred to as a guide vane) is not a flat plate but has a horizontal curved surface and is formed of an R (curved) shape.
  • the R (curved) shape of the air collecting plate 21 (guide vane) is arcuate.
  • the R (curved) shape of the air collecting plate 21 (guide vane) may be various R (curved) shapes as illustrated in FIG. 5B.
  • the wind collecting plate 21 is a straight flat plate, the wind force is lost when the direction of the received wind is changed. (1) Not only can the strength of the wind collecting duct be increased, but (2) the so-called spoon effect (Coanda effect) can further increase the wind force.
  • the spoon effect (Coanda effect) is a phenomenon in which a water stream bends to the right along a spoon, and since air is also a fluid, a spoon effect can be obtained in the same way as a water stream.
  • the strength of the tubular air collecting duct can be increased more than in the case of a linear shape.
  • Flanges 23 forming lateral walls at the upper and lower ends of the air collecting duct will be described.
  • the flanges 23 are doughnut-shaped plates arranged horizontally above and below the air collecting duct.
  • a tubular air collecting duct is formed together with the vertically arranged air collecting plates 21 (guide vanes).
  • the flanges 23 (upper, middle, and lower flanges are 23a, 23b, and 23c, respectively) that constitute the lateral wall of the tubular duct 28 are formed of doughnut-shaped plates (flanges 23).
  • the air collecting plate 21 and the flange 23 form a tubular duct 28 that forms a tubular ventilation passage.
  • a conventional windmill does not have a flange 23 and is simply a guide plate, so the wind escapes in the vertical direction.
  • the tubular duct 28 of the present invention has a tubular duct structure, and as shown in FIG. It can be sprayed and can exhibit high collection force.
  • a flange (middle) 23b is added between the upper and lower flanges to form three flanges 23a.
  • 23b and 23c are installed in the air collecting portion 2. As shown in FIG. 4, in addition to the upper and lower flanges (upper) 23a and the flange (lower) 23c, a flange (middle) 23b is added between the upper and lower flanges to form three flanges 23a. , 23b and 23c are installed in the air collecting portion 2. As shown in FIG.
  • a flange 23b is formed.
  • An appropriate number of flanges 23 b can be formed according to the length of the air collecting portion 2 .
  • the strength of the air collection duct can be increased, the wind turbine can be prevented from being damaged by flying objects or the like, and high safety can be ensured.
  • the addition of flanges 23b doubles the number of tubular ducts 28 and can increase the spoon effect.
  • the tubular ducts 28 are arranged so that the radial direction of the wind collecting plate 21 is not directed toward the wind turbine central axis 31 and is at an angle to the wind turbine central axis 31 direction. are placed.
  • the wind collecting plate 21 can change the direction of the received wind, block the head wind hitting the windmill, and easily take in the fair wind.
  • the air collecting portion 2 of this embodiment includes the air collecting plate 21 (guide vane) and upper, middle, and lower doughnut-shaped plates (flanges 23a, 23b, 23c). is formed to surround the wind turbine.
  • the air collecting plate 21 guide vane
  • upper, middle, and lower doughnut-shaped plates flanges 23a, 23b, 23c.
  • the suction port 26 which is the inlet of the air
  • the suction port 26 is widened, and the area of the duct receiving the wind is increased. ing. Due to this shape, the inner diameter of the air collection duct is formed to decrease as it progresses from the suction port 26 to the discharge port 27, so the wind to the windmill is accelerated.
  • wind from all directions can be fed into the blades 32 inside the windmill as a favorable wind while blocking the head wind.
  • the number of revolutions of the wind turbine can be increased by enlarging the wind receiving area, blocking the adverse wind, and increasing the wind force.
  • the wind turbine 3 of the present invention includes a wind turbine central axis 31 erected in a direction perpendicular to the wind traveling direction, and a wind turbine central axis 31 arranged along the periphery of the wind turbine central axis 31 to receive the wind. It is provided with a plurality of blades 32 that apply rotational torque to the windmill central shaft 31 , and an upper lid 33 and a lower lid 35 that support the blades 32 . As shown in FIG. 2, the windmill is supported by bearings 34 at the upper end of the windmill central shaft 31, and is connected to the input shaft of the generator 4 at the lower end of the windmill central shaft 31, and is rotatably supported.
  • the diameter of the wind turbine is reduced (approximately 60 cm) and the height is increased (approximately 1 m). Charging at about 6 m/s (average wind speed) is possible.
  • a disc-shaped arm is used in which the upper and lower portions of the blades 32 are fixed with discs. This is to solve the problem that the rotation speed of the wind power generation mechanism changes depending on the strength of the wind, and fatigue load is generated at the base of the blade frame due to inertial force.
  • an improved Sirocco-type windmill as shown in FIG. 6 is used as the windmill.
  • a sirocco-type windmill is a fan in which vertically elongated plate-like blades 32 are attached in a cylindrical shape and used in ventilation equipment such as range hoods.
  • the sirocco windmill has the characteristic of releasing air to the outside of the windmill due to the centrifugal force of the windmill rotation. For this reason, no air is taken into the inside of the windmill.
  • the shape of the windmill of this embodiment is a sirocco-type windmill with top and bottom lids (also called bulkhead/end plates) and an intermediate partition (also called middle plate) attached.
  • the wind turbine 3 has an appearance similar to that of the wind collecting part 2 by the upper and lower lids and the middle partition (middle plate).
  • partitions are formed with discs above and below (and in the middle of) the cylindrical windmill. For this reason, the top and bottom are covered (and a partition is provided in the middle), and the rotation of the windmill lowers the air pressure inside the windmill, obtaining the effect of drawing in air from the outside of the windmill, making the windmill easier to operate. rotation can be achieved.
  • This is a new rotor system that utilizes the air characteristics of drawing air into the wind turbine, unlike the characteristics of conventional Sirocco wind turbines.
  • a cross-flow wind turbine is known as a fan similar to the Sirocco wind turbine.
  • Cross-flow wind turbines are used for indoor units of air conditioners, etc., because they can obtain a wide and uniform flow.
  • the sirocco type wind turbine is much more advantageous in the present invention because it is only about 1, and the maximum static pressure is not generated and the flow path resistance is weak.
  • the wind turbines of this embodiment can be vertically connected in a plurality of stages such as two stages and three stages in a comb shape. Since the windmill used in the present invention has a large blade area and a large torque, a plurality of windmills can be vertically connected in a comb shape and connected to one generator. Thereby, the power generation amount can be increased.
  • the generator 4 (Generator position)
  • the generator 4 is installed on a base bracket 24 below the wind turbine 3 and coupled to the wind turbine central shaft 31 (FIG. 5).
  • the generator rotating shaft 41 of the generator 4 is coupled to the windmill center shaft 31 (not shown) by a coupling 42 (shaft joint).
  • the windmill central shaft 31 and the rotating shaft (not shown) of the generator may be formed by the same rotating shaft. That is, the generator 4 is directly connected to the generator 4 by a coupling 42 (shaft coupling) through the windmill central shaft 31 (not shown) without a transmission mechanism, or by connecting the windmill central shaft 31 (not shown) to the generator. 4 and are directly coupled with the same rotation axis. For this reason, the downsizing of the wind turbine generator 1 is made possible.
  • the windmill central shaft 31 is connected to the rotating shaft of the generator by a coupling 42 (shaft coupling) to absorb misalignment and to prevent excessive load from being applied to the motor and windmill. Not only can power be transmitted through the coupling 42 (shaft coupling) to absorb misalignment and to prevent excessive load from being applied to the motor and windmill. Not only can power be transmitted through the coupling 42 (shaft coupling) to absorb misalignment and to prevent excessive load from being applied to the motor and windmill. Not only can power be transmitted through the coupling 42 (shaft coupling) to absorb misalignment and to prevent excessive load from being applied to the motor and windmill. Not only can power be transmitted through the coupling 42 (shaft coupling) to absorb misalignment and to prevent excessive load from being applied to the motor and windmill. Not only can power be transmitted through the coupling 42 (shaft coupling) to absorb misalignment and to prevent excessive load from being applied to the motor and windmill. Not only can power be transmitted through the coupling 42 (shaft coupling
  • a low wind speed generator is used for the vertical axis wind power generator mechanism
  • a high wind speed generator is used for the horizontal axis wind power generator mechanism.
  • a generator according to the characteristics of the wind turbine like using a generator is preferable to use a generator according to the characteristics of the wind turbine like using a generator.
  • an alternator which is an alternator for vehicles, as a preferred generator. Since alternators are widely used in vehicles, ships, etc., they are easy to handle and maintain, and since there are many rebuilt products, they can contribute to a recycling-oriented society.
  • the generator it is preferable to use the generator with a waterproof cover attached.
  • the first anti-vibration mechanism of the present invention is a mechanism in which anti-vibration rubber 45 is attached between base bracket 24 for fixing generator 4 and mount 57 fixed to stand pipe 52, as shown in FIG. 2A. be.
  • the anti-vibration rubber 45 is installed not only directly between the base bracket 24, which is a support member on the side of the generator 4, and the mount 57, which is a support member on the side of the pedestal, but also when It also includes the case where a rubber vibration isolator is installed between the supporting member (base bracket 24) and the supporting member (mount 57) on the side of the pedestal to couple them.
  • the anti-vibration rubber is provided with bolts or screw holes to be connected to the support at both ends, and has a cushioning material (rubber, polyurethane elastomer, etc.) in the middle to prevent the support from vibrating.
  • a base bracket 24 and a mount in this embodiment, the mount corresponds to the mount 57 and the stand pipe 52 for fixing the generator 4 (coupled to the wind turbine center shaft 31), and
  • the horizontal external force on the windmill central shaft 31 can be buffered, and the windmill central shaft 31 can be made flexible.
  • the first anti-vibration rubber mounts the base bracket 24 and the mount 57 with a plurality of first anti-vibration rubbers 45a. As a result, the flexibility of the generator rotating shaft 41 and the windmill central shaft 31 can be ensured, and vibration can be prevented.
  • the vibration of the windmill is absorbed by the anti-vibration rubber or the like of the first anti-vibration mechanism, the vibration of the windmill is prevented from being transmitted to the generator and the standpipe 52, and the loosening of the screw of the connection part can be prevented.
  • the windmill center shaft 31 can be made flexible, and the impact can be reduced in the event of strong winds and gusts, and damage to parts such as the standpipe 52 can be prevented. strength).
  • a second anti-vibration mechanism it is preferable to attach a second anti-vibration rubber 45b as shown in FIG. Figure 8).
  • the windmill and the generator may be joined using a coupling 42 (shaft coupling) having a vibration absorbing function by inserting a cushioning material (rubber, polyurethane elastomer, etc.) between two hubs.
  • a rubber/resin coupling has a structure in which a soft material such as rubber is sandwiched between two shafts.
  • a coupling 42 for example, a coupling 42 such as a jaw coupling which is easy to attach and detach and has a simple structure in which a cushioning material (rubber, polyurethane elastomer, etc.) is sandwiched between two hubs is used. It can be used preferably. Therefore, it is easy to connect the wind turbine to the power generator after the wind turbine is dismantled and repaired.
  • the structure of the windmill can be simplified, the windmill can be easily removed, and the maintainability can be improved.
  • a coupling 42 (shaft coupling) using a second anti-vibration rubber 45b, such as a jaw coupling, is attached to the joint 46 between the wind turbine and the generator 4. ing. Therefore, misalignment between the two shafts can be tolerated simply by fitting the wind turbine to the generator side, and problems caused by misalignment, such as uneven wear of the bearings and vibration of the device, can be reduced.
  • a coupling 42 such as an Oldham's coupling may be attached to absorb vibration.
  • a wind turbine guide is installed to adjust the amount of wind received by the wind power generator 1 by controlling the attitude of the installation position of the wind power generator 1 by the attitude control means (expansion mechanism 53) of the wind power generator 1, ⁇ Adjust the amount of wind received by the wind power generator by utilizing both the mechanism for adjusting the amount of wind received by the wind power generator by means of increasing and decreasing the slit space 72 (gap) of the wind turbine guide. can be done. As a result, it is possible to appropriately adjust the amount of wind received, and it is possible to prevent damage due to strong winds, thereby ensuring a high degree of safety.
  • the wind turbine generator 1 of the present invention is preferably surrounded by a kind of windbreak fence called a wind turbine guide.
  • the wind turbine guide 7 preferably has a square or circular planar shape, and is preferably high enough to hide the wind power generation mechanism.
  • an extension mechanism below the wind turbine central axis 31 that can move the wind turbine generator up and down as the posture control means for the wind turbine generator.
  • the telescopic mechanism 53 is kept extended so that the wind turbine generator 1 is positioned higher than the wind turbine guide 7 so that the wind can be easily received.
  • the telescopic mechanism 53 moves part or all of the wind power generator 1 to the wind turbine guide 7 as shown in FIGS. 11B and 11C.
  • the wind turbine generator 1 is preferably housed inside the wind turbine guide within a range of 50% to 100% of the projected area.
  • A shows the image at normal time, B at about 50% retraction, and C at 100% retraction.
  • a hollow cylindrical main pipe is installed vertically from the installation surface where the wind turbine generator 1 is installed, and the wind turbine generator of the present invention has a stand pipe 52 at its bottom.
  • the standpipe 52 is fitted with the hollow tubular main pipe and is moved up and down by the extension mechanism 53, which slides up and down to control the posture of the wind power generating mechanism.
  • the rod of the gas damper is fully extended (in this state, the wind power generation mechanism is fully extended as shown in FIG. 11A), and depending on the weather and other conditions, the wind power generation mechanism If it is assumed that the wind pressure applied to the wind power generation mechanism will increase, the rod of the gas damper attached to the wind power generation mechanism is pushed into the damper cylinder and contracted (as a result, the attitude of the wind power generation mechanism is as shown in FIG. 11B 11C). Then, when the wind pressure becomes weak again, the rod of the gas damper is extended again and the tip of the rod of the gas damper pushes the wind power generation mechanism upward, returning the wind power generation mechanism to its normal state as shown in FIG. 11A.
  • gas damper for example, a lightweight gas damper used for opening and closing automobile hatchbacks is preferably used.
  • a gas spring, an oil damper, or the like can also be used in addition to the gas damper.
  • the wind power generation mechanism can be adjusted by integrating the two air volume adjustments, that is, the adjustment of the air volume hitting the wind power generation mechanism by the extension mechanism 53 of the wind power generation mechanism and the adjustment of the air volume by the adjustment mechanism of the slit space 72 (gap) of the wind turbine guide. (By adjusting the height of the windmill and the ratio of the slits, the amount of wind received can be adjusted and the rotation of the windmill can be controlled).
  • the wind turbine guide can prevent the wind turbine from being damaged by flying objects or the like.
  • the wind turbine guide of the present invention not only prevents people and animals from entering the place where the wind turbine generator 1 is installed, but also prevents strong winds hitting the wind turbine generator 1 and adjusts the amount of wind hitting the wind turbine generator 1. can have the ability to
  • the wind turbine guide has an opening/closing adjustment mechanism for a slit space 72 (gap), and the wind turbine guide is formed with a slit space 72 (gap) through which the wind can partially pass.
  • the area of the wall of the wind turbine guide can be changed, and FIG. 12 shows an image when A covers all, B covers 66%, and C covers 50%.
  • the slit space 72 (gap) can be adjusted by increasing or decreasing the number of slits to adjust the rate at which the wind turbine guide 7 blocks the wind.
  • the number of slits can be increased or decreased by moving one windbreak plate 71 to the back of the adjacent windbreak plate 71 .
  • it can be manually or electrically operated by changing the opening and closing angle of the windbreak plate 71 like opening and closing a jalousie.
  • the ratio of the slit space 72 (gap) of the wind turbine guide 7 is preferably within the range of 20% to 80%. It is preferable that the ratio of the slit space 72 (gap) is changed according to the strength of the wind assumed in advance.
  • the wind turbine generator 1 of the present invention configured as described above is not strictly limited in size and weight, but preferably has a length, width and height of less than 2 meters and a weight of less than about 30 to 40 kilograms. is preferably Therefore, the wind turbine generator 1 of the present invention enables daily use regardless of the installation location.
  • the generator is fixed to the base bracket using generator support means.
  • the generator is directly connected to the center shaft of the windmill, and can generate power by the rotational force generated by the blades 32 .
  • the windmill central axis is integrated with and directly connected to the generator rotating shaft 41 of the generator 4 as in this embodiment.
  • the wind turbine central shaft 31 of the wind power generation mechanism is formed with the same rotation shaft as the generator rotation shaft 41 of the generator 4, or the wind turbine central shaft 31 is coupled with the rotation shaft of the generator ( It is preferable to be joined by a shaft coupling). By joining with a coupling (shaft coupling), misalignment can be absorbed and power can be transmitted without applying an extra load to the motor or windmill.
  • the wind turbine generator 1 of the present invention has a very simple structure and does not require parts such as brakes and sensors.
  • the present invention can be used by being mounted on ships and automobiles, and can be used in vehicles, emergency evacuation shelters, mobile phone base stations, camps, etc. in anticipation of disasters. It goes without saying that the wind power generator 1 of the present invention can be used in places with good wind conditions such as riversides, coastal areas, and mountainous areas. can also be installed, enabling daily use regardless of the installation location.
  • a charging control mechanism for charging the battery with the electricity generated by the wind turbine generator 1 of the present invention can be further provided.
  • Such charging control mechanisms include, for example, power generation control system devices. This is a system device that controls the voltage of the alternator according to changes in the number of revolutions of the wind turbine, thereby controlling charging of the battery.
  • the power generation control system uses a microcomputer to control the voltage generated by the alternator to decrease when the wind is strong and to increase when the wind is weak. can do.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

Le problème décrit par la présente invention est de permettre l'utilisation quotidienne d'un dispositif compact de production d'énergie éolienne pouvant être chargé à faible vitesse de vent, quel que soit son emplacement d'installation. À cet effet, l'invention concerne un dispositif de production d'énergie éolienne comprenant : un mécanisme de production d'énergie éolienne comprenant les éléments suivants de (A) à (E), à savoir, (A) une unité de collecte de vent, (B) une éolienne pourvue d'une pluralité de pales, (C) un arbre central d'éolienne, (D) un générateur d'énergie, et (E) un mécanisme anti-vibration monté entre l'éolienne et un cadre; et un mécanisme de support pour le mécanisme de production d'énergie éolienne comprenant les éléments suivants de (F) et (G), à savoir, (F) un cadre qui monte le mécanisme de production d'énergie éolienne, et (G) un moyen de commande d'orientation. Ledit mécanisme de production d'énergie éolienne est un mécanisme de production d'énergie éolienne à axe vertical ou un mécanisme de production d'énergie éolienne à axe horizontal, et le moyen de commande d'orientation commande l'orientation du mécanisme de production d'énergie éolienne ou l'orientation verticale ou horizontale du cadre.
PCT/JP2022/016483 2021-05-31 2022-03-31 Dispositif de production d'énergie éolienne WO2022254949A1 (fr)

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005054695A (ja) * 2003-08-05 2005-03-03 Tomotake Shigemori 風力発電装置
JP2006037939A (ja) * 2004-07-28 2006-02-09 Takeshi Mitsui 風力発電装置
JP2006316751A (ja) * 2005-05-16 2006-11-24 Takumi Hashizume ダリウス・サボニウス式風力発電装置
JP2009138578A (ja) * 2007-12-05 2009-06-25 E & E Kk 水平軸型風力発電装置のロータ支持構造
CN101949356A (zh) * 2010-05-13 2011-01-19 宋永财 导风式垂直轴风力发电机
WO2011161821A1 (fr) * 2010-06-25 2011-12-29 エネルギープロダクト株式会社 Appareil de collecte de vent et appareil éolien
JP2013002351A (ja) * 2011-06-16 2013-01-07 Enedream Co Ltd 水平軸型の風車
US20170045034A1 (en) * 2014-08-12 2017-02-16 Occasion Renewable Resources Company Limited Device and system for wind power generation
WO2020180083A2 (fr) * 2019-03-05 2020-09-10 박준규 Générateur d'énergie par fluide et système de génération d'énergie comprenant un tel générateur
JP2020172915A (ja) * 2019-04-15 2020-10-22 Ntn株式会社 風力発電装置
JP6986728B1 (ja) * 2021-01-05 2021-12-22 Ｔｏｐｗｉｎｄ株式会社 移動体への設置可能とする風力発電装置

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005054695A (ja) * 2003-08-05 2005-03-03 Tomotake Shigemori 風力発電装置
JP2006037939A (ja) * 2004-07-28 2006-02-09 Takeshi Mitsui 風力発電装置
JP2006316751A (ja) * 2005-05-16 2006-11-24 Takumi Hashizume ダリウス・サボニウス式風力発電装置
JP2009138578A (ja) * 2007-12-05 2009-06-25 E & E Kk 水平軸型風力発電装置のロータ支持構造
CN101949356A (zh) * 2010-05-13 2011-01-19 宋永财 导风式垂直轴风力发电机
WO2011161821A1 (fr) * 2010-06-25 2011-12-29 エネルギープロダクト株式会社 Appareil de collecte de vent et appareil éolien
JP2013002351A (ja) * 2011-06-16 2013-01-07 Enedream Co Ltd 水平軸型の風車
US20170045034A1 (en) * 2014-08-12 2017-02-16 Occasion Renewable Resources Company Limited Device and system for wind power generation
WO2020180083A2 (fr) * 2019-03-05 2020-09-10 박준규 Générateur d'énergie par fluide et système de génération d'énergie comprenant un tel générateur
JP2020172915A (ja) * 2019-04-15 2020-10-22 Ntn株式会社 風力発電装置
JP6986728B1 (ja) * 2021-01-05 2021-12-22 Ｔｏｐｗｉｎｄ株式会社 移動体への設置可能とする風力発電装置

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JPWO2022254949A1 (fr) 2022-12-08

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