WO2005075820A1 - マグナス型風力発電装置 - Google Patents
マグナス型風力発電装置 Download PDFInfo
- Publication number
- WO2005075820A1 WO2005075820A1 PCT/JP2004/008321 JP2004008321W WO2005075820A1 WO 2005075820 A1 WO2005075820 A1 WO 2005075820A1 JP 2004008321 W JP2004008321 W JP 2004008321W WO 2005075820 A1 WO2005075820 A1 WO 2005075820A1
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- WIPO (PCT)
- Prior art keywords
- rotating cylinder
- magnus
- rotating
- type wind
- power generator
- Prior art date
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 58
- 238000000034 method Methods 0.000 claims description 10
- 230000003993 interaction Effects 0.000 claims description 5
- 238000010248 power generation Methods 0.000 description 26
- 230000000694 effects Effects 0.000 description 13
- 239000000463 material Substances 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 229920002472 Starch Polymers 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/0601—Rotors using the Magnus effect
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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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
-
- 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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/201—Rotors using the Magnus-effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/40—Use of a multiplicity of similar components
-
- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
Definitions
- the present invention relates to a Magnus-type wind power generator that drives the power generation mechanism by rotating the horizontal rotation shaft by the Magnus lift generated by the interaction between the rotation of each rotating cylinder and wind power.
- Patent Document 1 US Pat. No. 4,366,386
- Patent Document 2 Russian Patent No. 2189494C2
- a Magnus-type wind power generator as disclosed in Patent Document 1 generates a Magnus lift by rotating a rotating cylinder and generates electricity by rotating a horizontal rotating shaft. It is necessary to increase the rotation speed of the rotating cylinder to increase the Magnus lift. In order to rotate the rotating cylinder at high speed, a lot of energy is consumed and the power generation efficiency deteriorates.
- the Magnus-type wind power generator described in Patent Document 2 uses a Savonius rotor that rotates by wind power to rotate the rotating cylinder, so that the transmission mechanism for the rotating cylinder can be omitted, and the rotating cylinder can be omitted. It is not necessary to provide a drive motor or the like for rotating the Since the rotor cannot rotate at a speed higher than the wind speed and cannot increase the rotation speed of the rotating cylinder, it cannot generate a large Magnus lift and is not suitable for efficient power generation.
- the present invention is to solve such a problem at once, and to provide a Magnus-type wind power generator capable of efficiently generating power from a low wind speed range to a relatively high wind speed range.
- a Magnus-type wind power generator includes a horizontal rotating shaft that transmits a rotating torque to a power generation mechanism, and a required number of radial rotating shafts from the horizontal rotating shaft.
- a rotating motor provided to rotate the rotating cylinders around the axes of the rotating cylinders, and the horizontal rotation is performed by a Magnus lift generated by an interaction between the rotation of the rotating cylinders and wind power.
- the mutual movement between the rotation of each rotating cylinder and wind force is generated by generating air flow on the outer peripheral surface of the rotating cylinder, independent of the movement of air on the surface of the rotating cylinder rotating with the natural wind or the rotating cylinder.
- a Magnus-type wind power generator according to claim 2 of the present invention is the Madanas-type wind power generator according to claim 1, wherein the air flow means is provided on the outer peripheral surface of the rotating cylinder at least. Both are means for generating a flow component of air parallel to the axis of the rotating cylinder.
- a Magnus-type wind power generator according to claim 3 of the present invention is the Magnus-type wind power generator according to claim 1 or 2, wherein the air flow means is provided on an outer peripheral surface of the rotating cylinder. It is a means for generating a flow component of air in a direction parallel to the axis of the rotating cylinder and away from the horizontal rotation axis.
- the air flow means generates the air flow on the outer peripheral surface of the rotating cylinder in a direction away from the horizontal rotation axis force, thereby increasing the Magnus lift generated in the rotating cylinder.
- a Magnus-type wind power generator according to claim 4 of the present invention is the Magnus-type wind power generator according to claim 1 or 2, wherein the air flow means is provided on an outer peripheral surface of the rotating cylinder.
- the air flow means generates an air flow on the outer peripheral surface of the rotating cylinder toward the horizontal rotation axis, thereby increasing the Magnus lift generated in the rotating cylinder.
- a Magnus-type wind power generator according to claim 5 of the present invention is the Magnus-type wind power generator according to claims 1 to 4, wherein the air flow means is formed on an outer peripheral surface of the rotating cylinder.
- the fin member is provided.
- the air around the rotating cylinder is caused to flow by the fin members, and the Magnus lift generated in the rotating cylinder can be increased.
- the Magnus-type wind power generator according to claim 6 of the present invention is the Madanas-type wind power generator according to claim 5, wherein the fin member as the air flow means is formed of the rotating cylinder. It is a spiral ridge formed on the outer peripheral surface.
- the spiral ridge allows air to flow uniformly and stably over the wide surface of the rotating cylinder, thereby increasing the Magnus lift and reducing wind noise.
- a Magnus-type wind power generator according to claim 7 of the present invention is the Magnus-type wind power generator according to any one of claims 1 to 7, wherein the rotating circle is provided at a tip of the rotating cylinder.
- the end cap having a larger diameter than the pillar is provided. According to this feature, it has been experimentally proved that attaching the end cap increases the Magnus effect when the airflow is given, and according to the experiment, when the end cap is provided, It can be seen that the method of flowing air in the horizontal rotation axis direction has a greater Magnus effect than the method of flowing air in the radial direction.
- a Magnus-type wind power generator according to claim 8 of the present invention is the Magnus-type wind power generator according to claim 6 or 7, wherein the ridge is formed of a multi-row spiral. As a special floor.
- the Magnus-type wind power generator according to claim 9 of the present invention is the Magnus-type wind power generator according to claims 1 to 8, wherein a plurality of dimples are provided on an outer peripheral surface of the rotating cylinder. It is characterized by being formed.
- the dimple may have any shape as long as it is uneven to disturb the surface flow.
- a Magnus-type wind power generator according to claim 10 of the present invention is the Magnus-type wind power generator according to claim 6, wherein a dimple or a protrusion is formed on the outer surface of the tip of the ridge. It is characterized by that.
- the dimples or protrusions disturb the surface flow (boundary layer) on the outer surface of the tip of the ridge, suppress separation, increase circulation, and increase the Magnus lift in a kappa manner.
- a Magnus-type wind power generator according to claim 11 of the present invention is the Magnus-type wind power generator according to any one of claims 1 to 10, wherein the rotating cylinder is arranged with respect to a horizontal rotating shaft. It is characterized by being supported so as to be able to expand and contract in the radial direction.
- the rotating cylinder is expandable and contractible, power can be generated by expanding and contracting the rotating cylinder in accordance with the direction and wind speed of natural wind.
- the wind area can be maximized to increase the lift of the rotating cylinder, and at high winds.
- a Magnus-type wind power generator according to claim 12 of the present invention is the Magnus-type wind power generator according to any one of claims 1 to 11, wherein the number of the rotating cylinders is smaller than the required number. It is characterized in that each of the rotating cylinders can be simultaneously driven to rotate by using a number of the driving motors.
- FIG. 1 is a front view showing a Magnus-type wind power generator according to Embodiment 1 of the present invention.
- FIG. 2 is an explanatory diagram of Magnus lift.
- FIG. 3 is a sectional view taken along line AA of the rotating cylinder in FIG. 1.
- FIG. 4 is a front view showing a rotating cylinder provided with a ridge.
- FIG. 5 is a front view showing a rotating cylinder provided with a composite according to a second embodiment.
- FIG. 6 is a front view showing a rotating cylinder in which a ridge is provided with a dimple in a composite in Example 3.
- FIG. 7 is a front view showing a rotating cylinder provided with concave streaks according to a fourth embodiment.
- FIG. 8 is a front view showing a rotating cylinder provided with two protrusions in Example 5.
- FIG. 9 is a perspective view showing a rotating cylinder provided with two protrusions.
- FIG. 10 is a front view showing a rotating cylinder in a sixth embodiment.
- FIG. 11 is a perspective view showing an end cap according to a seventh embodiment.
- FIG. 12 is a front view showing a Magnus-type wind power generator according to an eighth embodiment.
- FIG. 13 is a longitudinal sectional side view showing a rotating body of a Magnus-type wind power generator according to Embodiment 9.
- FIG. 14 is a longitudinal sectional rear view taken along line BB of the rotating body in FIG. 13.
- FIG. 1 is a front view showing a Magnus-type wind power generator according to Embodiment 1 of the present invention.
- FIG. 3 is an explanatory view of the Magnus lift
- FIG. 3 is a sectional view taken along line AA of the rotating cylinder in FIG. 1
- FIG. 4 is a front view showing the rotating cylinder provided with a ridge.
- Reference numeral A in Fig. 1 denotes a Magnus-type wind power generator to which the present invention is applied, and the Madanas-type wind power generator A is provided with a vertical motor ( (Not shown), a power generating mechanism 2 is provided which is pivotally supported in the horizontal direction so as to be rotatable in the horizontal direction.
- the power generating mechanism 2 has a horizontal rotating shaft 3 which is rotatably supported in the vertical direction.
- One end of the horizontal rotating shaft 3 is connected to a generator (not shown) disposed inside the power generating mechanism 2, and the other end of the horizontal rotating shaft 3 is fixed to the rotating body 4.
- each driving motor 15 is arranged inside the rotating body 4, and six rotating cylinders 5 are radially arranged around the rotating body 4.
- the base of each rotating cylinder 5 is connected to each driving motor 15 disposed inside the rotating body 4,
- the rotating cylinder 5 is rotatably supported so that it can be rotated by the drive of each drive motor 15.
- a disc-shaped end cap 16 having a diameter larger than the diameter of the rotating cylinder 5 is attached to the tip end surface of the rotating cylinder 5.
- a fin member as an air flow means in this embodiment that is, a spiral ridge 6 is wound around a body of the rotary cylinder 5, and the ridge 6 is formed around the shaft.
- the ridges 6 can be explained as follows. Article 6 is fixed so as to form a right-handed right-handed spiral when viewed from the end face of the rotating cylinder 5
- the wind direction is detected by an anemoscope (not shown), and a control circuit (not shown) controls a vertical motor (not shown).
- the power generating mechanism 2 is turned in accordance with the wind direction so that the wind comes in from the front side of the rotating body 4. Then, by driving the respective drive motors 15 inside the rotating body 4, the respective rotating cylinders 5 are rotated.
- the spiral ridge 6 is applied to the rotating column 5, so that when the rotating column 5 rotates, the spiral ridge 6 generates an air flow F. .
- a flow component V of air flow parallel to the axis of the rotating cylinder 5 is generated on the outer peripheral surface of the rotating cylinder 5, apart from the natural wind ⁇ the surface movement of the rotating cylinder 5 that rotates with the rotating cylinder 5. It can be done.
- the air flow around the outer periphery of the rotating cylinder 5 By generating the air flow F on the peripheral surface, a three-dimensional air flow formed by natural wind and the movement of air on the surface of the rotating cylinder 5 rotating with the rotating cylinder 5 is formed.
- the Magnus lift Y generated by the interaction between the rotation of each rotating cylinder 5 and wind power is increased (see Fig. 3).
- the air flow F given by the air flow means here does not need to be entirely parallel to the rotating cylinder 5, but at least a vector component V parallel to the rotating cylinder 5 is sufficiently effective. It is considered that the reasons why the Magnus lift Y increases are that the phenomenon that the differential pressure between the negative pressure and the positive pressure applied to the rotating cylinder 5 increases, the phenomenon that the lift generating surface expands, etc. occur. Can be
- the use of the end cap 16 improves the Magnus effect. That is, by providing the end cap 16 on the tip end surface of the rotating cylinder 5, the end cap 16 has a favorable effect on the airflow F, and the Magnus lift Y is improved. As will be described later, according to experiments, when the end cap 16 is provided, the method that flows air in the horizontal rotation axis direction has a greater Magnus effect than the method that flows air in the radial direction. I can help you.
- the rotating cylinder 5 and the rotating body 4 are rotated about the horizontal rotating shaft 3 by the Magnus lift Y generated on each rotating cylinder 5, and the horizontal rotating shaft A generator (not shown) connected to one end of the power generator 3 is driven to generate electric power.
- the tonnolek value (rotating torque) of the horizontal rotating shaft 3 that drives the generator (not shown) is increased, and the Magnus-type wind power
- the power generation efficiency of device A can be increased.
- a generator not shown
- a part of the generated power is supplied to a drive motor 15 for rotating the rotating column 5 and can be used as auxiliary power.
- the rotating cylinder 5 of the Magnus-type wind turbine generator A in the present embodiment, and the peripheral speed ratio ⁇ ⁇ ⁇ ⁇ and the lift coefficient Cy of the rotating cylinder and the ideal fluid in the other inventions will be described with reference to Table 1.
- Table 1 This is a graph showing the relationship between the peripheral speed ratio ⁇ and the lift coefficient Cy, where d is the diameter of the rotating cylinder (m), n is the number of revolutions per second (r / s) of the rotating cylinder, and u is the wind speed (mZs).
- the lift coefficient Cy is the lift Y It is the value obtained by dividing the kinetic energy of the wind around (1/2) pu 2 by the projected area dl of the rotating cylinder (l is the length of the rotating cylinder).
- the peripheral speed ratio ⁇ is used to minimize the change in the experimental results due to differences in the diameter d, the number of rotations n, and the wind speed u. , 1 and the density p of the fluid.
- the graph (a) shows the rotating cylinder of the Magnus-type wind power generator A of the present invention.
- 5 is a graph showing the relationship between the peripheral speed ratio ⁇ of 5 and the lift coefficient Cy
- the graph (mouth) shows the relationship between the peripheral speed ratio ⁇ of the rotating cylinder of the Magnus-type wind power generator of ITAM ( Russia) and the lift coefficient Cy.
- the graph (c) shows the relationship between the peripheral speed ratio of the NACA4415 blades (propeller blades with an attack angle of 12 degrees), which is often used in propeller wind turbine type wind turbines.
- 6 is a graph showing a relationship between a conversion factor corresponding to a peripheral speed ratio ⁇ ) and a lift coefficient Cy.
- the graph of the rotating cylinder 5 of the present invention (a) Is the ideal It draws a curve that is close to the graph of fluid (ideally flowing, lossless fluid that does not need to consider friction and separation).
- the lift coefficient Cy of the graph (a) of the rotating cylinder 5 of the present invention is higher than the lift coefficient Cy of the graph (mouth) of the rotating cylinder of ITAM.
- the rotating column 5 of the Magnus-type wind turbine generator A of the present invention can generate the Magnus lift Y most efficiently in a state where the rotating speed n of the rotating column is relatively low.
- the horizontal rotating shaft 3 can be rotated with a high Magnus lift Y even when the rotating column 5 has a low rotation speed n.
- the power consumption of the drive motor 15 for rotationally driving the motor can be reduced, and power can be efficiently generated.
- the end cap 16 of the Magnus-type wind turbine generator A in the present embodiment, the torque value N (rotation torque) of the horizontal rotating shaft 3 in the generator structure 2, and the peripheral speed ratio ⁇ are shown in Tables 2 and 3. This is explained using Table 3.
- the direction of rotation of the rotating cylinder 5 that causes the air flowing on the outer peripheral surface of the rotating cylinder 5 to flow toward the horizontal rotating shaft 3 is referred to as forward rotation
- the air flowing on the outer peripheral surface of the rotating cylinder 5 is the horizontal rotating shaft.
- the direction of rotation of the rotating cylinder 5 flowing away from 3 is called reverse rotation.
- Table 2 is a graph showing the relationship between the peripheral speed ratio ⁇ and the tonnolec value N when the rotating cylinder 5 having a diameter of 70 ⁇ is positively rotated.
- the graph (a) shows a spiral ridge.
- 6 is a graph showing the relationship between the peripheral speed ratio ⁇ and the torque value N of the rotating cylinder 5 not provided with the end caps 16 and the end cap 16, and the graph (b) shows the rotating cylinder 5 provided with the spiral ridge 6.
- the graph (b) of the normal rotation of the rotary cylinder 5 provided with the spiral ridge 6 and the graph (c) the graph (b) of the rotary cylinder 5 without the end cap 16 is provided.
- the torque value N is improved due to the Magnus effect generated near the end cap 16 in the rotating cylinder 5, and the end cap 16 is provided, so that the vicinity of the end face of the rotating cylinder 5 is improved.
- a large Magnus lift Y is generated. That is, the torque value N of the rotating cylinder 5 provided with the end cap 16 is higher than the tonnolek value N of the rotating cylinder 5 provided with the end cap 16 without the end cap 16 (b). I'm in love.
- Table 3 is a graph showing the relationship between the peripheral speed ratio ⁇ and the tonnolec value N when the rotating cylinder 5 is rotated in the reverse direction, and the graph (a) shows the spiral ridge 6 and the end cap 16 This is a graph showing the relationship between the peripheral speed ratio ⁇ of the rotating cylinder 5 not provided and the torque value N.
- the graph) shows the peripheral speed ratio ⁇ and the torque value of the rotating cylinder 5 provided with the spiral ridge 6.
- the graph (f) shows the relationship between N and the peripheral speed ratio ⁇ when the end cap 16 having a diameter of 140 ⁇ is attached to the rotating cylinder 5 provided with the spiral ridge 6.
- the graph (e) of reverse rotation of the rotating cylinder 5 provided with the spiral ridge 6 and the graph (f) the graph (e) of the rotating cylinder 5 without the end cap 16 is provided.
- the torque value N is improved due to the Magnus effect generated near the end cap 16 in the rotating cylinder 5, and the end cap 16 is provided, so that the vicinity of the end face of the rotating cylinder 5 is improved.
- a large Magnus lift Y is generated.
- the torque value of the rotating cylinder 5 provided with the end cap 16 is higher than the torque value N of the graph (e) of the rotating cylinder 5 not provided with the end cap 16 so that the tonnole value N in the graph (f) without the end cap 16 is set. I'm in love.
- the graph (b-g) of the rotating cylinder 5 provided with the air flowing means such as the ridge 6 is better than the rotating cylinder 5 provided with no air flowing means. It can be seen from the graph (a) that the tonnolec value N is increased. From the experimental results, the natural wind ⁇ rotates with the rotating cylinder 5. Apart from the movement of air on the surface of the rotating cylinder 5, the outer circumference of the rotating cylinder 5 By generating an air flow on the surface, it is possible to find a new principle that the Magnus lift Y generated by the interaction between the rotation of each rotating cylinder 5 and the wind increases, and the Magnus-type wind power generator A in this embodiment can be found.
- the torque value N of the horizontal rotating shaft 3 that drives the power generation mechanism 2 is increased, and the power generation efficiency of the Magnus-type wind power generator A is significantly increased from a low wind speed range to a relatively high wind speed range. Succeeded. In addition, it has been experimentally proved that attaching the end cap 16 when the air flow is applied increases the Magnus effect.
- Table 4 is used for the ridge 6 of the Magnus-type wind turbine generator A in the present embodiment, the tonnolec value N (rotation torque) of the horizontal rotating shaft 3 in the power generation mechanism 2, and the wind speed u.
- Table 4 is a graph showing the relationship between the wind speed u and the torque value N when the rotating cylinder 5 is rotated at a rotation speed of 1080 [miiT 1 ] .
- the graph (h) is provided with a spiral ridge 6.
- 7 is a graph showing the relationship between the wind speed u of the rotating cylinder 5 and the torque value N
- the graph (i) shows the relationship between the wind speed u and the torque value N of the rotating cylinder 5 provided with the spiral ridge 6. It is a graph shown.
- Wind is u [m / s]
- Table 5 describes the wind speed and the generated power output W.
- Table 5 is a graph showing the relationship between the wind speed and the power output W of the Magnus-type wind turbine generator A in this example having a diameter of 2 m of the wind turbine and the probe-type wind turbine generator. Is a graph showing the wind speed and the power output W of the propeller-type wind power generator of the present embodiment, and a graph (k) is a graph showing the wind speed and the power output W of the Magnus-type wind power generator A in the present embodiment. Is a daraf showing the Rayleigh distribution of wind speed when the annual average wind speed is 6 m (observation site: Akita Prefecture).
- FIG. 5 is a front view showing the rotating cylinder 5b provided with the complex 9b in Example 2.
- a large number of coating materials 8b made of a synthetic resin or a weather-resistant lightweight alloy are provided on the surface.
- a fin member as an air flow means that is, a composite body 9b formed by combining with a spiral ridge 6b is provided on the surface of the coating material 8b with irregularities.
- the surface area of the rotating cylinder 5b is increased, and the surface flow (boundary layer) is disturbed by the plurality of dimples 7b.
- the air flow can be smoothly flown to the surface of the rotating cylinder 5b by the spiral ridge 6b, and the air flow component V of the air flow F generated on the outer peripheral surface of the rotating cylinder 5b can be generated.
- the circulation is increased by suppressing the separation, and the Magnus lift Y generated on the rotating cylinder 5b is increased.
- a large number of dimples 7b are formed directly on the surface of the rotating cylinder 5b without using the covering material 8b, and the ridge 6b is wound around the surface of the rotating cylinder 5b on which the dimples 7b are formed. It may be turned.
- the starch 5b mentioned here may have any shape as long as it is unevenness for disturbing a surface flow.
- FIG. 6 is a front view showing a rotating cylinder 5c in which a dent 7c is provided on a ridge 6c of a composite 9c in Example 3, and a coating material 8c in which a large number of dents 7c are provided with irregularities.
- a complex 9c formed by a combination of a large number of dimples 7c provided with irregularities is integrally coated on the outer peripheral surface of the rotating cylinder 5c.
- a large number of dimples 7c are formed on the top surface 10c of the spiral ridge 6c, and Since the surface flow (boundary layer) force S is disturbed by a plurality of dimples 7c, the Magnus lift Y generated in the rotating cylinder 5c increases.
- the ridge 6c allows air to flow smoothly to the surface of the rotating cylinder 5c, and the air flow F generated on the outer peripheral surface of the rotating cylinder 5c A flow component V can be generated.
- a hemispherical projection may be protruded from the top surface 10c as the outer surface of the tip of the projection 6c of the composite 9c. While disturbing the surface flow on the outer surface of the tip of 6c, suppressing separation and increasing circulation, the Magnus lift Y generated on the rotating cylinder 5c is additionally increased.
- FIG. 7 is a front view showing a rotary cylinder 5d provided with a concave strip 17d according to the fourth embodiment.
- the outer peripheral surface of the shaft of the rotary cylinder 5d has a spiral-like shape as air flow means in the present embodiment.
- a concave ridge 17d is formed in a concave shape.
- the concave ridge 17d is formed so as to form a right-handed right spiral when viewed from the distal end face of the rotating cylinder 5d, and is formed on the distal end face of the rotating cylinder 5d.
- the rotating cylinder 5d when rotating the rotating cylinder 5d, when the concave strip 17d of the rotating cylinder 5d forms a right-handed right spiral shape when viewed from the tip end direction of the rotating cylinder 5d, the rotating cylinder 5d Is rotated counterclockwise, and the spiral winding direction of the concave strip 17d is opposite to the rotation direction of the rotating cylinder 5d.
- the air flowing on the outer peripheral surface of the rotating cylinder 5d can flow toward the horizontal rotation axis side, so that the air flow F can be generated on the outer peripheral surface of the rotating cylinder 5d, and the axis of the rotating cylinder 5d can be moved.
- a parallel air flow component V is generated, and the Magnus lift Y generated in the rotating cylinder 5d is increased, and the end cap 16d provided on the tip end surface of the rotating cylinder 5d causes the vicinity of the end cap 16d to be increased.
- a large Magnus lift Y is generated near the end cap 16d of the rotating cylinder 5d so as to affect the air flow.
- FIG. 8 is a front view showing a rotating cylinder 5e provided with two ridges 6e in the fifth embodiment.
- FIG. 9 is a perspective view showing a rotating column 5e provided with two ridges 6e.
- a fin member as an air flow means that is, two spiral ridges 6e are The double helical ridge 6e is attached to the shaft outer peripheral surface of the rotating cylinder 5e, and is fixed so as to form a right-handed right helical shape when viewed from the distal end surface of the rotating cylinder 5e.
- an end cap 16e is attached to the tip surface of the rotating cylinder 5e.
- the protruding ridge 6e provided on the rotating cylinder 5e is not limited to two spirals, and is provided with a large number of protruding ridges 6e that can be composed of three or four or more spirals. This allows more air to flow smoothly to the surface of the rotating cylinder 5e with the ridges 6e without increasing the diameter of the spiral, so that air flow F can be generated on the outer peripheral surface of the rotating cylinder 5e. As a result, an air flow component V parallel to the axis of the rotating cylinder 5e is generated, and the Magnus effect generated in the rotating cylinder 5e is improved, and the Magnus lift Y is increased.
- FIG. 10 is a front view showing the rotating cylinder 5f according to the sixth embodiment.
- An end cap 16f is attached to the tip of the rotating cylinder 5f, and the outer peripheral surface of the shaft near the tip of the rotating cylinder 5f.
- a fin member as an air flow means in this embodiment that is, two ridges 6f are attached.
- the end cap 16f is provided at the tip of the rotating cylinder 5f and the ridge 6f is provided near the tip of the rotating cylinder 5f, thereby increasing the Magnus lift Y generated near the tip of the rotating cylinder 5f. You can do it.
- FIG. 11 is a perspective view showing the end cap 16g according to the seventh embodiment.
- a disk-shaped end cap 16g is attached to the tip end of the rotating cylinder 5g, and the rotating cylinder 5g of the end cap 16g is attached.
- a plurality of fins 6g as air flow means in the present embodiment are provided on the inner surface facing the surface. The fins 6g are mounted so as to spread radially outward, and are curved to allow air near the rotating cylinder 5g to flow. It is.
- FIG. 12 is a front view showing a Magnus-type wind power generator A according to the eighth embodiment.
- the rotating cylinder 25 of the Magnus-type wind power generator A has an inner cylinder 39 fixed to a rotating body 24.
- An outer cylinder 40 is slidably attached to the outer periphery of the inner cylinder 39.
- the outer cylinder 40 is driven by a telescopic motor (not shown) driven by the control of a control circuit (not shown). It is slid in the radial direction with respect to the horizontal rotation shaft 23.
- the rotating cylinder 25 since the rotating cylinder 25 is expandable and contractible, the rotating cylinder 25 can be expanded and contracted in accordance with the direction of natural wind and the wind speed. In normal operation, the outer cylinder 40 of the rotating cylinder 25 is slid outward and the rotating cylinder 25 is extended to maximize the wind receiving area of the rotating cylinder 25, and the magnetism generated in the rotating cylinder 25 is increased. Since the lift Y can be increased, the Magnus-type wind turbine A can generate power efficiently.
- the outer cylinder 40 of the rotating cylinder 25 is slid inward to shrink the rotating cylinder 25, so that the wind receiving area of the rotating cylinder 25 can be reduced. Collapse or The rotation column 25 can be prevented from being damaged. Further, in a strong wind, by stopping the drive of the drive motor 35 for rotating the rotating cylinder 25, the Magnus lift Y generated on the rotating cylinder 25 is eliminated, and the rotation of the rotating body 24 can be stopped. The destruction of the power generator A is prevented.
- the outer cylinder 40 provided with the ridges 26 exists on the tip side of the rotating cylinder 25, so that the maximum torque can be obtained.
- FIG. 13 is a longitudinal sectional side view showing the rotating body 41 of the Magnus-type wind power generation device according to the ninth embodiment
- FIG. 14 is a BB longitudinal sectional back view showing the rotating body 41 in FIG.
- six rotating cylinders 43 are arranged on the outer periphery of the rotating body 41 on the front side of the horizontal rotating shaft 42 connected to the power generating mechanism, and inside the rotating body 41,
- One drive motor 44 for rotating the rotating cylinder 43 is arranged.
- the drive motor 44 is connected to a large-diameter bevel gear 45.
- the bevel gear 45 is arranged at the center of the rotating body 41 and has six rotating cylinders 43. It is connected to a small-diameter bevel gear 46 provided in the vehicle.
- the driving motor 44 is driven, the six rotating cylinders 43 can be rotated, and each rotating cylinder 43 can be rotated by using a smaller number of driving motors 44 than the number of rotating cylinders 43. Power for driving the motor 44 can be saved, and the power generation efficiency of the Magnus-type wind power generator can be increased.
- a spiral ridge is provided as air flow means applied to the rotating cylinder.
- the present invention is not limited to this. It is clear that the air flow may be applied by any method as long as the surface that generates lift is formed.
- the end cap force of the disk shape is provided on the tip end surface of the rotating cylinder, but the present invention is not limited to this, and maintains the pressure difference between the positive pressure side and the negative pressure side. Any shape is acceptable as long as it works.
- the force S provided with six rotating cylinders on the rotating body is not limited to this, and two, three, or more required number of rotating cylinders are required.
- a rotating cylinder may be provided.
- the Magnus-type wind power generation device of the present invention can be used from large-scale wind power generation to small-scale wind power generation for home use, and greatly contributes to the wind power generation industry. Furthermore, if the Magnus-type lift generation mechanism of the present invention is used for a rotor ship, a rotor vehicle, and the like, it is considered that the kinetic efficiency of a vehicle is also improved.
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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
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2004800252079A CN1846056B (zh) | 2004-02-09 | 2004-06-14 | 马格纳斯型风力发电装置 |
AU2004315175A AU2004315175B2 (en) | 2004-02-09 | 2004-06-14 | Magnus type wind power generator |
CA2552297A CA2552297C (en) | 2004-02-09 | 2004-06-14 | Magnus type wind power generator |
BRPI0418484-0A BRPI0418484A (pt) | 2004-02-09 | 2004-06-14 | gerador de força do vento do tipo magnus |
US10/569,581 US7504740B2 (en) | 2004-02-09 | 2004-06-14 | Magnus type wind power generator |
EP04745875.7A EP1715181B1 (en) | 2004-02-09 | 2004-06-14 | Magnus type wind power generator |
JP2005517614A JP3962755B2 (ja) | 2004-02-09 | 2004-06-14 | マグナス型風力発電装置 |
HK06113010.3A HK1092515A1 (en) | 2004-02-09 | 2006-11-27 | Magnus type wind power generator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004031897 | 2004-02-09 | ||
JP2004-031897 | 2004-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005075820A1 true WO2005075820A1 (ja) | 2005-08-18 |
Family
ID=34836070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/008321 WO2005075820A1 (ja) | 2004-02-09 | 2004-06-14 | マグナス型風力発電装置 |
Country Status (11)
Country | Link |
---|---|
US (1) | US7504740B2 (ja) |
EP (1) | EP1715181B1 (ja) |
JP (1) | JP3962755B2 (ja) |
KR (1) | KR100724045B1 (ja) |
CN (1) | CN1846056B (ja) |
AU (1) | AU2004315175B2 (ja) |
BR (1) | BRPI0418484A (ja) |
CA (1) | CA2552297C (ja) |
HK (1) | HK1092515A1 (ja) |
RU (1) | RU2330988C2 (ja) |
WO (1) | WO2005075820A1 (ja) |
Cited By (3)
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ES2274708A1 (es) * | 2005-09-14 | 2007-05-16 | Pedro M. Marrero O'Shanahan | Rotor de aerogenerador que barre una zona de seccion en forma de corona circular. |
WO2009004828A1 (ja) * | 2007-06-29 | 2009-01-08 | Mecaro Co., Ltd. | マグナス型風力発電装置 |
JP2017089636A (ja) * | 2015-11-04 | 2017-05-25 | 株式会社Ihi | 回転部材とこれを備える流体発電装置 |
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- 2004-06-14 EP EP04745875.7A patent/EP1715181B1/en not_active Expired - Lifetime
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2274708A1 (es) * | 2005-09-14 | 2007-05-16 | Pedro M. Marrero O'Shanahan | Rotor de aerogenerador que barre una zona de seccion en forma de corona circular. |
WO2009004828A1 (ja) * | 2007-06-29 | 2009-01-08 | Mecaro Co., Ltd. | マグナス型風力発電装置 |
JP2017089636A (ja) * | 2015-11-04 | 2017-05-25 | 株式会社Ihi | 回転部材とこれを備える流体発電装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1715181B1 (en) | 2013-07-31 |
AU2004315175B2 (en) | 2008-06-26 |
AU2004315175A1 (en) | 2005-08-18 |
JP3962755B2 (ja) | 2007-08-22 |
EP1715181A4 (en) | 2009-08-12 |
CA2552297C (en) | 2010-08-10 |
EP1715181A1 (en) | 2006-10-25 |
CN1846056B (zh) | 2010-04-07 |
KR100724045B1 (ko) | 2007-06-04 |
US7504740B2 (en) | 2009-03-17 |
US20070046029A1 (en) | 2007-03-01 |
BRPI0418484A (pt) | 2007-06-19 |
JPWO2005075820A1 (ja) | 2007-10-18 |
RU2006132397A (ru) | 2008-03-27 |
CN1846056A (zh) | 2006-10-11 |
KR20060035626A (ko) | 2006-04-26 |
RU2330988C2 (ru) | 2008-08-10 |
HK1092515A1 (en) | 2007-02-09 |
CA2552297A1 (en) | 2005-08-18 |
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