WO2011161821A1 - Appareil de collecte de vent et appareil éolien - Google Patents

Appareil de collecte de vent et appareil éolien Download PDF

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Publication number
WO2011161821A1
WO2011161821A1 PCT/JP2010/060868 JP2010060868W WO2011161821A1 WO 2011161821 A1 WO2011161821 A1 WO 2011161821A1 JP 2010060868 W JP2010060868 W JP 2010060868W WO 2011161821 A1 WO2011161821 A1 WO 2011161821A1
Authority
WO
WIPO (PCT)
Prior art keywords
wind
collecting
vertical axis
wind turbine
windmill
Prior art date
Application number
PCT/JP2010/060868
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English (en)
Japanese (ja)
Inventor
一孝 丸山
Original Assignee
エネルギープロダクト株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by エネルギープロダクト株式会社 filed Critical エネルギープロダクト株式会社
Priority to PCT/JP2010/060868 priority Critical patent/WO2011161821A1/fr
Priority to JP2012521247A priority patent/JPWO2011161821A1/ja
Publication of WO2011161821A1 publication Critical patent/WO2011161821A1/fr

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Classifications

    • 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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/04—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • F03D3/0409—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels surrounding the rotor
    • F03D3/0418—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels surrounding the rotor comprising controllable elements
    • 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 collecting device and a windmill device.
  • a wind turbine used for wind power generation there is a horizontal axis type wind turbine represented by a propeller type.
  • the wind collecting port has a collar, and the windmill is placed in a cone-shaped wind collecting pipe (diffuser) whose inner diameter increases from the upstream side toward the downstream side, thereby providing a wind collecting effect.
  • a cone-shaped wind collecting pipe diffuseuser
  • the vertical axis wind turbine is suitable for wind power generation using wind because it does not depend on the wind direction.
  • the current vertical axis wind turbines do not have enough power generation efficiency to make a profit.
  • This invention is made
  • a wind collecting blade is provided around the wind turbine, and a horn-shaped flow path is formed by a member that covers the top and bottom of the wind collecting blade.
  • it is a wind collecting device that collects wind flowing from an unspecified direction on an omnidirectional vertical axis wind turbine in which the rotation axis of the wind turbine is installed perpendicular to the ground, and is arranged around the vertical axis wind turbine.
  • a wind-collecting blade arranged such that a blade surface extends radially from the vertical axis wind turbine, and a wind-collecting member that covers an upper side and a lower side of the wind-collecting blade with a pair of air-collecting surfaces,
  • a wind collecting member that forms a horn-shaped channel that reduces the wind channel surrounded by the wind collecting surface from the outside to the inside of the vertical axis wind turbine.
  • the above wind collector is premised on collecting wind flowing from an unspecified direction with respect to a non-directional vertical axis wind turbine capable of converting wind energy into rotational energy without depending on the wind direction.
  • the wind collected by the wind collecting device may be any wind as long as it flows substantially perpendicular to the rotation axis of the windmill, and examples thereof include natural wind and exhaust air from an air conditioning facility.
  • the wind flows almost horizontally with respect to the ground, and the vertical axis wind turbine is also installed with the rotation axis substantially perpendicular to the ground on the assumption that the wind moves.
  • the wind collecting device includes wind collecting blades that stand around a vertical axis wind turbine and whose blade surfaces spread radially.
  • This wind collecting wing collects the wind around the vertical axis wind turbine.
  • the air collecting device includes an air collecting member that covers the upper and lower sides of the air collecting blades that stand around the vertical axis wind turbine with a pair of air collecting surfaces.
  • the wind collecting member is formed in a horn shape in which the flow path of the wind is reduced from the outside to the inside of the windmill. Therefore, the wind passing through the upper and lower sides of the windmill is taken in by the air collecting surface, and the air collecting surface prevents the wind collected by the air collecting blades from diffusing in the vertical direction, and is collected by the air collecting surface.
  • Wind collecting blades prevent the wind from spreading in the circumferential direction. Moreover, the flow path of the wind flowing into the air collecting device is reduced. As a result, the wind speed of the wind flowing to the windmill is increased, and the windmill output can be increased by utilizing the windmill characteristic proportional to the cube of the wind speed.
  • the air collecting member is, for example, the air collecting surface below the vertical axis wind turbine among the pair of air collecting surfaces formed to circulate around the upper end and the lower end of the vertical axis wind turbine, respectively. May be curved upward and the air collecting surface on the upper side of the vertical axis wind turbine may be curved convexly downward. If the air collecting surface is formed in this manner, the wind speed of the wind blown from all directions collected by the air collecting surface curved in a convex shape can be increased, and the energy received by the windmill can be increased. Therefore, it is possible to improve the energy conversion efficiency of the vertical axis wind turbine regardless of the wind direction.
  • the air collecting member may further include, for example, a diffusion preventing surface that covers the upper side and the lower side of the vertical axis wind turbine and prevents the wind from diffusing in the direction of the rotation axis of the vertical axis wind turbine.
  • a diffusion preventing surface that covers the upper side and the lower side of the vertical axis wind turbine and prevents the wind from diffusing in the direction of the rotation axis of the vertical axis wind turbine.
  • the diffusion preventing surface may be formed of any material, and for example, may be formed of a plate-like diffusion preventing plate that is disposed above and below the vertical axis wind turbine and is substantially orthogonal to the rotation axis of the vertical axis wind turbine.
  • the diffusion preventing surfaces are formed on a part or all of the upper and lower portions of the air flow path where the air collecting blade and the air collecting member collect air, thereby suppressing the air diffusion in the direction of the rotation axis.
  • the vertical axis windmill is, for example, a lift type windmill having straight blades
  • the wind collecting blade has a blade surface radially extending from the vertical axis windmill along the rotation direction of the vertical axis windmill. It may be arranged so as to form a flow path for guiding the wind passing around the vertical axis wind turbine to the side facing the front edge of the straight blade of the vertical axis wind turbine.
  • lift is generated by the force of the airflow flowing from the leading edge side to the trailing edge side of the straight blade, and the windmill rotates, so that the wind collector counters the collected wind against the leading edge of the straight blade. If guided to the side, the energy conversion efficiency of the windmill can be further improved.
  • the present invention can also be understood as a windmill device.
  • an omnidirectional vertical axis wind turbine in which the rotation axis of the wind turbine is installed perpendicularly to the ground, and a forest around the vertical axis wind turbine, and a blade surface extends radially from the vertical axis wind turbine.
  • a wind collecting member that covers an upper side and a lower side of the wind collecting blade with a pair of air collecting surfaces, and a wind flow path surrounded by the pair of air collecting surfaces, A wind collecting member that forms a horn-shaped channel that shrinks from the outside to the inside of the vertical axis wind turbine.
  • the front view of the wind power generation system which concerns on embodiment. Sectional drawing of the main-body part of the wind power generation system which concerns on embodiment. The perspective view of the main-body part of the wind power generation system which concerns on embodiment. Explanatory drawing regarding the attachment angle of a wind-collecting blade.
  • the block diagram of a control apparatus The top view which shows the flow of a wind. The perspective view which shows the flow of a wind. The figure shown about the wind direction of experimental data. The figure which shows experimental data. The figure which shows experimental data. The figure which shows experimental data. The figure which shows experimental data. The figure which shows experimental data. The graph which shows the relationship between the rotation speed of a windmill, and a wind speed. The graph which shows the relationship between the output electric power of a generator, and a wind speed.
  • the perspective view of the main-body part of the wind power generation system which concerns on a modification.
  • the front view of the vertical axis lift type windmill which concerns on a prior art.
  • FIG. 1 is a front view of a wind power generation system 1 according to an embodiment of the present invention.
  • the wind power generation system 1 includes a main body 5 having a windmill 3 having a windmill blade 2 and a wind collecting device 4 that collects wind on the windmill 3, and a quadrangular column base 6 that supports the main body 5. Is provided.
  • the wind power generation system 1 can be installed in a region where the power situation is bad such as a remote island or a mountainous region or any other region.
  • FIG. 2 is a cross-sectional view of the AA plane of the main body 5 of the wind power generation system 1.
  • FIG. 3 is a perspective view of the main body 5 of the wind power generation system 1. As shown in FIGS. 2 and 3, the main body 5 of the wind power generation system 1 is provided with a windmill 3 including four windmill blades 2, and eight wind collecting blades 7 around the windmill 3. .
  • the windmill 3 is a straight-blade vertical-axis windmill composed of straight windmill blades 2 with a vertical axis as a rotation axis.
  • the straight blade vertical axis type wind turbine 3 is different in the rotational direction component of the lift acting at right angles to the relative wind speed generated when the relative wind speed combined with the wind and the wind turbine rotational speed flows into the wind turbine blade 2 and the effect acting backward. Rotate using the thrust generated by
  • a wind collecting device 4 including a material 8 and a lower wind collecting material 9 collects wind on the wind turbine 3.
  • the wind collecting blade 7 may have any cross-sectional shape as long as it can collect the wind on the wind turbine 3, and for example, the cross section is formed in a plate shape, an elliptical shape, or an airfoil shape. Eight air collecting blades 7 are arranged at an angle of 45 ° so as to circulate around the wind turbine 3.
  • the upper air collecting material 8 and the lower air collecting material 9 have a pair of air collecting surfaces 10U and L covering the upper and lower sides of each air collecting blade 7.
  • the air collecting surfaces 10U and 10L form a horn-shaped flow path in which a wind flow path formed therebetween decreases from the outside to the inside of the wind turbine 3. That is, the air collecting surface 10U of the upper air collecting material 8 is curved so as to go upward from the windmill 3 side toward the outside. Further, the air collecting surface 10L of the lower air collecting material 9 is curved so as to go downward as it goes outward from the windmill 3 side.
  • the upper air collecting material 8 and the lower air collecting material 9 have a pair of diffusion preventing surfaces 11 covering the upper side and the lower side of the wind turbine 3. The pair of diffusion preventing surfaces 11 covers the upper side and the lower side of the wind turbine 3, thereby preventing the wind collected on the wind turbine 3 by the wind collecting blades 7 from diffusing in the vertical direction.
  • FIG. 4 is an explanatory diagram relating to the mounting angle of the wind collecting blade 7.
  • Atsumarifutsubasa 7 as shown in FIG. 4, the angle ⁇ with respect to the virtual line V L that passes through the rotation center O W vertical axis, in a state of tilted 22.5 ° on the side of the rotational direction of the windmill 3 ing. That is, the blade surface of the wind collecting blade 7 is radially spread along the rotation direction of the wind turbine 3. As a result, wind gathers at the windmill 3.
  • the wind collecting blade 7 can effectively collect the wind on the windmill 3 if the angle ⁇ is within the range of 0 to 30 °.
  • Such a range of the angle ⁇ of the air collecting blade 4 is determined from the viewpoint of improving the lift of the wind turbine blade 2 and preventing the separation of the air flow in the air collecting blade 7, so that the airfoil shape of the applied air collecting blade is applied. It is preferable to set appropriately according to the viscosity of the gas or the like.
  • FIG. 5 is a block diagram of the control device.
  • the wind power generation system 1 is provided with a control device as shown in FIG.
  • This control device controls the brake controller 13 for controlling the brake provided in the generator room 12 below the windmill 3, and the output of the windmill 3 so that the windmill 3 operates most efficiently.
  • a power controller 15 for supplying surplus power to the dummy load 14 and an inverter 16 for boosting the power of the generator and outputting it in an alternating current are provided.
  • the brake controller 13 controls the control air supplied from an air compressor (not shown) with a solenoid valve, and controls the rotation of the windmill 3 by moving the disc brake.
  • the overspeed of the wind turbine 3 is basically controlled by the power controller 15, but is also controlled preliminary by the brake controller 13.
  • FIG. 6 is a diagram showing a wind flow when the windmill 3 is viewed from above.
  • FIG. 7 is a figure which shows the flow of the wind at the time of seeing the windmill 3 from the side.
  • the wind that flows around the windmill 3 is collected by the wind collecting blades 7 on the windmill 3, and the wind that flows above and below the windmill 3 is collected by the wind collecting surfaces 10 U and L on the windmill 3. It is done. For this reason, the wind collected by the wind collecting device 4 and having increased wind speed passes through the wind turbine 3.
  • the diffusion preventing surface 11 is not provided, the collected wind can diffuse up and down the windmill 3.
  • the diffusion preventing surface 11 is the windmill. 3 is prevented from diffusing in the direction of the rotation axis. For this reason, the rotational force of a windmill does not decline.
  • the wind turbine used in this experiment has three straight blades, a rotating diameter of 600 mm, and a height of 604 mm.
  • the wind collecting blades are 150 mm in width and 654 mm in height, and are installed at positions of 400 mm on the inner side and 550 mm on the outer side from the rotation axis of the windmill.
  • experiments were conducted for four cases of 0 °, 22.5 °, 45 °, and 67.5 °.
  • the wind direction is as shown in FIG.
  • the air collecting blade angle ⁇ is 0 °, 5.625 °, 11.25 °, 16.875 °, and 22.
  • the experiment was conducted for the case of 5 °.
  • an experiment was also conducted in the case where the air collecting blade and the diffusion prevention plate were not attached.
  • FIG. 9A to 9C are experimental data showing the results of this demonstration experiment.
  • FIG. 10 is a graph showing the relationship between the rotational speed of the windmill and the wind speed
  • FIG. 11 is a graph showing the relationship between the output power of the generator and the wind speed.
  • 9A to 9C the mounting angle of the air collecting blade is rounded off to the nearest whole number and displayed as an integer.
  • the data shown in the “wind turbine unit” column is experimental data when the wind collecting blade and the diffusion prevention plate are not attached, and the data shown in other columns are the wind collecting blade and the diffusion prevention plate. This is experimental data when adjusting the mounting angle and wind direction of the wind collecting blade.
  • the “average rate of increase” means the average rate of rotation and power for each wind direction, and the relative rate of increase relative to the case where the wind collecting blade and diffusion prevention plate are not installed, is expressed as a percentage for each mounting angle of the wind collecting blade. It is shown by. As shown in the experimental data of FIGS. 9A to 9C and the graphs of FIGS. 10 to 11, when the wind collecting blade and the diffusion prevention plate are attached, it is considered that there is almost no wind collecting effect “wind direction 0 In other cases, the rotation speed of the wind turbine increases, and the maximum output power of the generator is about 170% (wind collecting plate type 5: wind collecting blade mounting angle 23 °: wind direction 45 °: wind speed 10 m / s ) Confirmed to increase.
  • the significant improvement of electric power generation efficiency can be anticipated.
  • the facility utilization factor of the power generation device is calculated by dividing the actual annual power generation amount by the annual power generation amount assuming that power generation has been continued for one year at the rated output. That is, the facility utilization rate indicates the ratio of the annual average output to the facility capacity.
  • the installation rate of the wind collecting device 4 greatly improves the facility utilization rate of the wind power generation facility.
  • the main body 5 may be stacked in multiple stages.
  • the rotating shafts may be connected to each other, but may be independent from each other.
  • the machine room X needs to be connected to each wind turbine 3.
  • the case where eight wind collecting blades are used has been described as an example.
  • the number of wind collecting blades may be any number as long as the wind can be collected in the windmill.
  • the relative distance between the windmill and the wind collecting blade was not particularly mentioned, in view of the wind collecting effect, the distance from the center of the windmill to the wind collecting blade was 2 in the rotation radius of the windmill. It is preferable that it is not more than a value obtained by multiplying the square root and not less than the distance at which the windmill and the air collecting blade do not contact each other.
  • the material of the air collecting blades 7 may be any material that can withstand external forces such as wind and rain.
  • a metal such as iron or aluminum, a composite material, wood, or a frame made of these materials may be synthetic fiber.
  • a cloth-like material composed of a material such as a string or an adhesive may be used.
  • the wind power generation system 1 may be a system that uses a solar battery panel or an internal combustion diesel generator in combination and appropriately switches to an optimal power generation method according to wind conditions and solar radiation conditions.
  • a hybrid power generation system By using such a hybrid power generation system, it is possible to perform stable power supply even on a remote island where power is not supplied.
  • a wind power generation system 1 in which such a solar cell panel or diesel generator is installed is provided as a package, the user can easily and stably perform determination without selecting the optimum power source. It is possible to secure a sufficient power supply.
  • wind collecting device 4 can be applied not only to the lift type windmill as described above but also to a drag type windmill such as a paddle type windmill.
  • the air collecting device 4 has air collecting surfaces 10U and L that form horn-shaped flow paths on the upper side and the lower side of the air collecting blades 7.
  • the diffusion preventing surface may be configured to extend to the upper side or the lower side of the air collecting blade. In this case, there is no effect of collecting the wind flowing above and below the windmill, but there is an effect of collecting at least wind flowing around the windmill because of the wind collecting blades. For this reason, the energy conversion efficiency of a windmill can be improved.
  • Wind power generation system 2. Wind turbine blade 3. Wind turbine 4. Wind collecting device 5. Main body 7. Wind collecting blade 8. Upper wind collecting material 9. Lower wind collecting material 10U, L. ⁇ Air collection surface 11 ⁇ ⁇ Diffusion prevention surface

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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

L'objectif est d'améliorer le rendement de conversion d'énergie d'une éolienne à axe vertical. Un appareil de collecte de vent (4) recueille les courants d'air passant dans une direction quelconque dans une éolienne omnidirectionnelle à axe vertical (3) comportant un axe rotatif perpendiculaire au sol. L'appareil de collecte de vent (4) comporte des aubes de collecte de vent (7) qui sont placées verticalement autour de l'éolienne à axe vertical (3) et qui ont des surfaces s'étendant radialement à partir de l'éolienne à axe vertical (3) ; et des éléments de collecte de vent (8, 9) qui recouvrent les faces de dessus et de dessous de chaque aube de collecte de vent (7) à l'aide de deux surfaces de collecte de vent (10U, 10L), chaque passage d'air entouré par les deux surfaces de collecte de vent (10U, 10L) formant un passage en forme d'entonnoir qui se rétrécit de l'extérieur vers l'intérieur de l'éolienne à axe vertical (3).
PCT/JP2010/060868 2010-06-25 2010-06-25 Appareil de collecte de vent et appareil éolien WO2011161821A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2010/060868 WO2011161821A1 (fr) 2010-06-25 2010-06-25 Appareil de collecte de vent et appareil éolien
JP2012521247A JPWO2011161821A1 (ja) 2010-06-25 2010-06-25 集風装置、及び風車装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/060868 WO2011161821A1 (fr) 2010-06-25 2010-06-25 Appareil de collecte de vent et appareil éolien

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WO2011161821A1 true WO2011161821A1 (fr) 2011-12-29

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016525187A (ja) * 2013-08-02 2016-08-22 オーディン エネルギー シーオー．， エルティーディー． 風力発電タワー
JP2016525186A (ja) * 2013-08-02 2016-08-22 オーディン エネルギー シーオー．， エルティーディー． ジャイロミル型風力タービンを備えた風力発電タワー
JP2017015094A (ja) * 2012-06-18 2017-01-19 株式会社ピーエス三菱 垂直軸型風車の集風装置
WO2022254949A1 (fr) * 2021-05-31 2022-12-08 Ｔｏｐｗｉｎｄ株式会社 Dispositif de production d'énergie éolienne

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949378A (ja) * 1982-09-14 1984-03-21 Hiroshi Hasui 風車装置
JP2006188969A (ja) * 2005-01-04 2006-07-20 Fuji Seratekku Kk 風車及びそれを組み込んだ風力発電機
JP2008064106A (ja) * 2002-05-16 2008-03-21 Hidemi Kurita 垂直軸風車等の垂直軸駆動装置およびこれを用いた発電装置
JP2009287516A (ja) * 2008-05-30 2009-12-10 Five:Kk 縦軸型風車

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949378A (ja) * 1982-09-14 1984-03-21 Hiroshi Hasui 風車装置
JP2008064106A (ja) * 2002-05-16 2008-03-21 Hidemi Kurita 垂直軸風車等の垂直軸駆動装置およびこれを用いた発電装置
JP2006188969A (ja) * 2005-01-04 2006-07-20 Fuji Seratekku Kk 風車及びそれを組み込んだ風力発電機
JP2009287516A (ja) * 2008-05-30 2009-12-10 Five:Kk 縦軸型風車

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017015094A (ja) * 2012-06-18 2017-01-19 株式会社ピーエス三菱 垂直軸型風車の集風装置
JP2016525187A (ja) * 2013-08-02 2016-08-22 オーディン エネルギー シーオー．， エルティーディー． 風力発電タワー
JP2016525186A (ja) * 2013-08-02 2016-08-22 オーディン エネルギー シーオー．， エルティーディー． ジャイロミル型風力タービンを備えた風力発電タワー
JP2019060345A (ja) * 2013-08-02 2019-04-18 オーディン エネルギー シーオー．， エルティーディー． ジャイロミル型風力タービンを備えた風力発電タワー
WO2022254949A1 (fr) * 2021-05-31 2022-12-08 Ｔｏｐｗｉｎｄ株式会社 Dispositif de production d'énergie éolienne

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