WO2014193085A1 - 풍력 발전기의 블레이드 각도 조절장치 및 이를 가지는 풍력발전기 - Google Patents
풍력 발전기의 블레이드 각도 조절장치 및 이를 가지는 풍력발전기 Download PDFInfo
- Publication number
- WO2014193085A1 WO2014193085A1 PCT/KR2014/003533 KR2014003533W WO2014193085A1 WO 2014193085 A1 WO2014193085 A1 WO 2014193085A1 KR 2014003533 W KR2014003533 W KR 2014003533W WO 2014193085 A1 WO2014193085 A1 WO 2014193085A1
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- WO
- WIPO (PCT)
- Prior art keywords
- blade
- wind
- shaft
- housing
- fixed
- Prior art date
Links
- 238000009434 installation Methods 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 description 5
- 238000010248 power generation Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0232—Adjusting aerodynamic properties of the blades with flaps or slats
-
- 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0236—Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
-
- 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0224—Adjusting blade pitch
-
- 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
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0244—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking
- F03D7/0252—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking with aerodynamic drag devices on the blades
-
- 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
-
- 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
- F05B2240/202—Rotors with adjustable area of intercepted fluid
-
- 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
- F05B2260/00—Function
- F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
- F05B2260/75—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism not using auxiliary power sources, e.g. servos
-
- 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
- F05B2270/00—Control
- F05B2270/60—Control system actuates through
- F05B2270/606—Control system actuates through mechanical actuators
-
- 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 blade angle control device and a wind power generator having the same, and more particularly to a wind turbine blade angle control device and a wind generator having the same can change the angle of the blade according to the wind speed.
- a wind generator is a device that converts kinetic energy of air, that is, energy obtained from wind resources into rotational kinetic energy, and then into electrical energy.
- Such wind generators usually include a rotor that is rotated by wind, a nacelle that converts the rotor's rotational force into electric power, and a tower that supports the nacelle and the rotor.
- the rotor is provided with a plurality of blades (blade) to induce a rotational force by the wind, rotatably installed in the nacelle.
- the nacelle is equipped with a gearbox for transmitting the rotational force of the rotor and a generator operated by the rotational force.
- the tower is installed perpendicular to the installation site to support the load of the nacelle and rotor installed on the top.
- Such a wind generator is difficult to operate by receiving all of these winds in any one structure because the wind of various directions to strength depending on the installation site. Therefore, there is a need for a structure of a wind generator having high efficiency and suitable for a region and a place.
- wider blades in a wind generator help to use slower winds, but are disadvantageous in strong winds.
- the rotation angle of the rotating direction is changed to cause a safety problem such as vibration during rotation of the rotor. . Therefore, there is a need for a wind generator and its structure capable of utilizing both strong and weak winds even with a large blade.
- the hinge had a problem that can not control the force at the time of change of the blade to the blade area and the wind speed.
- the hinge had a problem that can not control the force at the time of change of the blade to the blade area and the wind speed.
- the angle of the whole blade is changed, the angle of rotation of the blade is changed, which causes a problem in the safety of the blade.
- the present invention is to generate a high rotational force in both breezes and strong winds by causing the blade to rotate quickly and stably so that the area under the wind pressure is adjusted according to the size of the wind speed, Furthermore, the purpose is to ensure that the area control of these blades is made safely.
- an apparatus for adjusting the blade angle of the wind power generator according to the wind speed comprising: a shaft; A housing in which the shaft is rotatably installed; And end portions fixed to the shaft and the housing, respectively, to store elastic energy by relative rotation of the shaft and the housing, and to reverse the shaft and the housing to their original state when the force necessary for the relative rotation is released.
- a spring to allow relative rotation thereof wherein one of the shaft and the housing is fixed to a blade installation unit in which the blade is rotated by wind pressure, and the other is fixed to the blade to receive the wind pressure.
- the blade angle adjusting device of the wind generator is provided so that the area of the blade is adjusted according to the magnitude of the wind speed by the spring force.
- the shaft is fixed to be positioned along the longitudinal direction of the blade installation portion provided in the hub so as to extend radially about the hub of the wind generator, the housing is such that the blade fixing plate fixed to the blade protrudes to the side Can be prepared.
- the spring is fixed to the shaft, one end is installed in the housing to surround the shaft, the other end is fixed to the inner surface of the housing, the shaft is respectively installed in the housing so as to be located on both sides of the spring It can be rotatably supported by.
- a stopper provided to protrude from the shaft; And a locking piece installed in the housing so as to be located within the rotational trajectory of the stopper, and caught by the stopper such that an area subjected to wind pressure with respect to the blade rotating by the elastic force of the spring does not exceed a desired size.
- the locking piece may be selectively fixed at any one of a plurality of positions within the rotational trajectory to adjust the maximum size of an area under which the blade is subjected to wind pressure.
- a wind generator comprising: a hub rotatably installed on a nacelle; Blade installation portion is fixed so that rotation is suppressed to extend in the radial direction about the hub; A blade angle adjusting unit installed in the blade installation unit; And a blade fixed to the blade angle adjusting unit, wherein the blade angle adjusting unit is provided with a wind power generator having a blade angle adjusting device including the blade angle adjusting device of the wind generator.
- the blade angle adjusting unit may be installed in a plurality of spaced apart along the longitudinal direction in the blade mounting portion, each may be fixed to the side of the blade, the blade mounting portion may be located in front of the blade with respect to the wind direction. .
- the blade angle adjusting device and the wind generator having the same it is possible to adjust the area of the blade under the wind pressure according to the size of the wind speed, so as to obtain a stable rotational force regardless of the breeze or strong wind
- to prevent damage to the blades and other components in strong winds to ensure that the blades rotate quickly and stably in response to changes in the wind speed, and to control the change of blade area and the timing of rotation of the blades subjected to wind pressure according to the wind speed This makes it easy and can be applied to both horizontal and vertical wind generators according to the conditions of the place and region.
- FIG. 1 is a side view showing a wind generator having a blade angle adjusting device according to a first embodiment of the present invention
- Figure 2 is a side view for explaining the operation of the wind generator having a blade angle adjusting device according to a first embodiment of the present invention
- FIG. 3 is a perspective view showing the blade angle adjusting device of the wind generator according to an embodiment of the present invention
- Figure 4 is a side cross-sectional view showing a blade angle adjusting device of the wind generator according to an embodiment of the present invention
- Figure 5 is a front sectional view showing a blade angle adjusting device of the wind generator according to an embodiment of the present invention
- Figure 6 is a perspective view showing the internal structure of the blade installation unit showing a wind generator having a blade angle adjusting device according to a first embodiment of the present invention
- FIG. 7 is a cross-sectional view showing a blade installation unit showing a wind generator having a blade angle adjusting device according to a first embodiment of the present invention
- FIG. 8 is a side view showing the blade and the blade installation portion of the wind generator having a blade angle adjusting device according to a first embodiment of the present invention
- FIG. 9 is a side view in the opposite direction showing the blade and the blade installation portion of the wind power generator having a blade angle adjusting device according to the first embodiment of the present invention
- FIG. 10 is a front sectional view for explaining the operation of the blade angle adjusting device of the wind power generator according to the first embodiment of the present invention
- FIG. 11 is a side view showing the main portion of a wind power generator having a blade angle adjusting device according to a second embodiment of the present invention
- FIG. 12 is a side view showing the internal structure of the blade installation portion of the wind power generator having a blade angle adjusting device according to a second embodiment of the present invention.
- FIG. 1 is a side view showing a wind generator having a blade angle adjusting device according to a first embodiment of the present invention
- Figure 2 illustrates the operation of a wind generator having a blade angle adjusting device according to a first embodiment of the present invention
- 3 is a perspective view illustrating a blade angle adjusting device of a wind generator according to an embodiment of the present invention.
- the blade angle adjusting device 100 of the wind generator for adjusting the blade 240 angle, that is, pitch of the wind generator 200 according to the wind speed
- An apparatus comprising a shaft 110, a housing 120 and a spring 130 (shown in FIG. 4), wherein one of the shaft 110 and the housing 120 is installed such that the blade 240 rotates by wind pressure.
- the blade installation unit 250 the other is fixed to the blade 240, the area of the blade 240 subjected to the wind pressure according to the size of the wind speed by the elastic force of the mainspring 130 (shown in Figure 4) Allow it to be adjusted.
- the area of the blade 240 subjected to wind pressure may mean an area occupied by the blade 240 based on a direction orthogonal to the wind direction.
- the shaft 110 may be installed to penetrate the housing 120, and thus may be installed to allow relative rotation with the housing 120.
- the relative rotation of the shaft 110 and the housing 120 may mean that either one of the shaft 110 and the housing 120 is fixed and the other may rotate.
- the housing 120 is installed around the shaft 110 so that the shaft 110 is rotatably installed.
- the housing 120 may have a cylindrical shape having an internal space as in the present embodiment, and the shaft 110 is installed to penetrate both ends. Can be.
- the mainspring 130 stores the elastic energy by the relative rotation of the shaft 110 and the housing 120 by fixing the ends to the shaft 110 and the housing 120, respectively, and releases the force necessary for the relative rotation partially or completely. In other words, when the stored elastic energy is greater than the force applied to the blade 240 by the wind pressure, the shaft 110 and the housing 120 are rotated in the reverse direction to return to the original state.
- the spring 130 may be installed in the housing 120 so that one end of the shaft 110 is fixed to surround the shaft 110, and the other end may be fixed to an inner side surface of the housing 120.
- the shaft 110 may be provided with a spring fixing part 111 on the outer circumferential surface of the shaft 110 so that an end positioned at the center of the spring 130 is fitted into the shaft 110.
- the housing 120 may be provided with a spring fixing part (not shown) on the inner side surface so that the edge end of the spring 130 is fitted into the housing 120.
- the shaft 110 may be rotatably supported by bearings 150 respectively installed in the housing 120 to be located at both sides of the mainspring 130.
- the bearing 150 is rotatably coupled to the inner ring 151 fixed to the outer circumferential surface of the shaft 110, the ball or roller, etc. not shown on the outside of the inner ring 151, the inner circumferential surface of the housing 120 It may include an outer ring 152 is fixed to the fixing bolt 121. Meanwhile, the inner ring 151 may be fixed to the outer circumferential surface of the shaft 110 via the sleeve 112.
- the shaft 110 is attached to the blade installation part 250 provided in the hub 230 so as to extend radially about the hub 230 of the wind generator 200. It can be fixed to be located along the longitudinal direction.
- the housing 120 may be provided so that the blade fixing plate 140 fixed to the blade 240 protrudes to the side.
- the blade fixing plate 140 may be integrated with the housing 120 or may be formed separately from the housing 120, and may be fitted to the outer circumferential surface of the housing 120 by various methods such as fitting, sliding coupling, bolting, riveting, or welding. It may be fixed to be vertical.
- the blade installation unit 250 is not made separately as in this embodiment, but may be a hub 230, in which case the blade 240 to be installed directly rotatable to the hub 230, the shaft 110 may be secured directly to hub 230.
- the stopper 161 and the engaging piece 162 may be provided to limit the angle of the blade 240, that is, the pitch.
- the stopper 161 may be provided to protrude from the shaft 110, and may be formed of, for example, a bar.
- the engaging piece 162 may be installed in the housing 120 to be located in the rotational trajectory of the stopper 161, the desired size of the area receiving the wind pressure for the blade 240 that is rotated by the elastic force of the spring 130. The stopper 161 is caught so as not to escape.
- the locking piece 162 is selectively fixed at any one of a plurality of positions within the rotational trajectory of the stopper 161 due to the rotation of the shaft 110, thereby reducing the area of the blade 240 to receive the wind pressure.
- the locking piece 162 may be fixed to the outer ring 152.
- the outer ring 152 is formed by a plurality of fastening grooves 164 along the circumferential direction, so that the locking piece 162 is fixed to the bolt 163. It can be selectively fixed to a portion of the plurality of fastening grooves 164, thereby the locking piece 162 can limit the loosening of the mainspring 130 by adjusting the rotation allowable angle of the stopper 161.
- the stopper 160 may be configured to rotate about 160 ° to 200 ° from the original position, for example, may be 60 ° to 80 °, for example, 70 °.
- the wind generator 200 having a blade angle adjusting device according to the first embodiment of the present invention includes a blade angle adjusting device 100 of the wind generator as described above,
- the hub 230 rotatably installed in the nacelle 220, the blade installation part 250 fixed to the hub 230 so as to suppress rotation by radially extending around the hub 230, and
- the blade angle adjusting unit installed in the blade installation unit 250, and the blade 240 is fixed to the blade angle adjusting unit, the blade angle adjusting unit blade angle adjusting device of the wind generator according to the present invention as described above It may be made of (100).
- the wind power generator 200 having the blade angle adjusting device according to the first embodiment of the present invention represents a horizontal axis type wind power generator in which the axis of the rotor is horizontal.
- the hub 230 forms a rotor together with the blade 240, and is installed to be rotatable to the nacelle 220 by the rotation shaft.
- the nacelle 220 may be provided with a tail wing 221 at the rear to be arranged in a line in the wind direction, it may be fixed on the tower 210.
- the nacelle 220 may be provided with a gearbox for transmitting the rotational force of the hub 230 rotated by the blade 240 which is resisted by the wind pressure, and a generator driven by using the rotational force transmitted through the gearbox. have.
- the blade installation unit 250 may be provided with a hub fixing part 251 to be fixed to the hub 230, the blade angle adjusting unit, that is, the blade angle adjusting device of the wind generator ( 100 may be installed in a plurality of blade mounting portion 250 at intervals along the longitudinal direction.
- the blade installation unit 250 is provided with a plurality of receiving space for accommodating the blade angle adjusting device 100 of the wind generator at intervals along the longitudinal direction, the shaft 110 by the shaft fixing unit 252; 4 may be fixed by welding or uneven coupling to prevent rotation of both ends, and a blocking plate 253 is installed at an open side of the accommodation space to block the accommodation space.
- the blocking plate 253 may be fixed to the housing 120 to rotate together with the housing 120, but may have a size and shape such that rotation of the housing 120 is not interfered with.
- the blade installation unit 350 may be equipped with a cover 254 on one side, the cover 254 serves to protect not only the blade angle adjusting device 100 of the wind generator, but also the inner components, housing
- the side portion may have an open structure along the longitudinal direction so as not to interfere with the rotation of the blade fixing plate 140 due to the rotation of the 120.
- the blade installation unit 250 may be formed of a shaft member fixed to the hub 230 and may form the head of the blade 240 by being located in front of the blade 240 with respect to the wind direction. Therefore, when the blade 240 is positioned at the rear of the blade installation unit 250 and subjected to resistance due to wind pressure, the blade 240 rotates like a tail wing based on the blade installation unit 250.
- each of the blade angle adjusting unit that is, the blade angle adjusting device 100 of the wind generator, may be fixed to the side of the blade 240, as described above, to the blade fixing plate 140. It can be fixed to the side of the blade 240 by.
- the blade 240 may be formed with a plurality of fixing grooves not shown in the interval along the longitudinal direction so that the blade fixing plate 140 can be fixed to each side.
- the blade 240 is a case in which the elastic force provided by the spring 130 (shown in FIG. 4) of the blade angle adjusting device 100 of the wind generator is relatively large as compared with the wind pressure received by the blade 240. In the case of weakness, it maintains the state (A (state of FIG. 1)) by which the wind pressure area becomes large by the elastic force of the mainspring 130.
- FIG. 5 When the mainspring 130 is released, the stopper 161 and the engaging piece 162 shown in FIG. 5 may be set to maintain the rotational angle at which the blade 240 may generate the maximum rotational force.
- the blade 240 may be determined in consideration of characteristics such as area or curvature.
- the blade 240 has a relatively small elastic force provided by the mainspring 130 (shown in FIG. 4) as compared with the wind pressure received by the blade 240. It rotates in the state (B (state of FIG. 2)) becoming small. Therefore, by reducing the resistance received by the blade 240 by the strong wind to prevent structural damage of the rotor, including the blade 240, and to ensure that the blade 240 generates the desired rotational force despite the strong wind. On the other hand, if the wind speed is reduced, the elastic energy stored in the mainspring 130 (shown in FIG. 4) is transmitted to the blade 240 through the shaft 110 and the blade fixing plate 140, so that the area of the blade 240 receives the wind pressure It automatically returns to the increasing state A (state of FIG. 1).
- the spring 130 may be manufactured to have an elastic force or elastic modulus for rotating the blade 240 so that the area subjected to wind pressure becomes smaller when the wind speed is a predetermined size or more.
- the blade 240 is installed so that the blade mounting portion 250 corresponds to the head to be positioned behind the blade mounting portion 250 to serve as the tail wing, thereby the blade mounting portion 250 is suppressed rotation
- the relative rotation of the shaft 110 and the housing 120 allows the angle of rotation, ie pitch, to be easily and quickly converted according to the magnitude of the wind speed.
- FIG 11 is a side view showing the main portion of the wind power generator having a blade angle adjusting device according to a second embodiment of the present invention
- Figure 12 is a blade of the wind power generator having a blade angle adjusting device according to a second embodiment of the present invention. It is a side view which shows the internal structure of an installation part.
- the wind generator 300 having the blade angle adjusting device according to the second embodiment of the present invention represents a vertical axis type wind generator in which the axis of the rotor is vertical.
- Blades 340 may be installed on the upper side and the lower side of the blade installation unit 350 fixed to be horizontal through the blade angle adjusting device 100 of the wind generator.
- Blade angle adjusting device 100 of the wind generator can be fixed in a plurality in a row so that the shaft 110 is suppressed by the shaft fixing unit 352 provided in the blade installation unit 350, each blade fixing plate 140 ) May be respectively fixed to the sides of the blade 340.
- Blade angle adjusting device 100 of the wind generator is a plurality of blades installed in the installation unit 350 is fixed to each of the blades 340 can be made to return to the rotation of the blade 340 to be stable.
- the control box 370 may be installed in the blade installation unit 350, and the fixing piece 371 provided in the control box 370 may be fixed to the blade 340.
- the blade 340 may be formed with an interference prevention unit 341 so as to avoid interference with each other during vertical rotation.
- the blade 340 may be provided with an auxiliary wing 360 to increase the driving efficiency by the wind, this auxiliary wing 360 is to be attached to one side of the blade 340 by the wing fixing piece 361. Can be.
- the auxiliary wing 360 may be connected to the blade fixing piece 361 via the blade angle adjusting device 100 of the wind generator.
- the blade angle adjusting device 100 of the wind generator may have the shaft 110 fixed to the wing fixing piece 361, and the blade fixing plate 140 may be fixed to the auxiliary wing 360.
- the wind generator 300 having the blade angle adjusting device according to the second embodiment of the present invention except that the rotation axis of the rotor is horizontal, the wind generator having a blade angle adjusting device according to the first embodiment described above
- the operation and action similar to the operation of 200 may be performed, and as in the present embodiment, the blade 340 may be a two leaf type, and the blade 340 may be one or three or more.
- the force generated by the wind generator 200 depends on the wind speed and the area of the blade 240 subjected to wind pressure. Although artificial adjustment of the wind speed is difficult, it is possible to adjust the area of the blade 240 by the blade angle adjusting device 100 of the wind generator, thereby adjusting the pitch of the blade 240 in accordance with the strength of the wind speed to improve the power generation efficiency. In order to increase, when the wind speed is low, the area of the blade 240 to which the wind pressure acts is increased, and when the wind speed is large, the area of the blade 240 to which the wind pressure acts is reduced, so that the blade 240 is bent or damaged by the strong wind. It is possible to prevent the gearbox, the shaft member, or the generator in the wind generator 200 from being damaged.
- the blade 240 may be installed at the rear side of the blade installation unit 250 with respect to the direction of the wind so that the blade installation unit 250 serves as a head, and may be installed to serve as a tail wing, thereby preventing the angle of the front rotation direction from changing.
- the blade angle control device 100 of the wind generator When operating the blade angle control device 100 of the wind generator, not only can be quickly and stably rotated by the change of wind speed, but also can minimize the resistance in the reverse wind, and to generate the best rotational force according to the wind speed The power generation efficiency can be maximized.
- the point of time when the blade 240 rotates by the elastic force of the spring 130 by the blade angle adjusting device 100 of the wind generator can be adjusted according to the area and the wind speed of the blade 240 on which the wind pressure acts, and the wind speed is low. Even in this case, it is possible to increase the area of the blade 240 in which the wind pressure acts to generate a stable rotational force.
- the angle of the blade installation unit 250 corresponding to the crown of the blade 240 does not change, and the angle of only the blade 240 serving as a tail wing at the rear thereof varies according to the size of the wind speed,
- the blade 240 rotates only when the wind speed is higher than a certain intensity by the elastic force, thereby increasing the efficiency of the wind power generation, which may be changed to increase the efficiency according to the type of the wind generator 200.
- the blade angle adjusting device 100 of the wind power generator 100 is applied to the blade 240 a plurality of elastic force to the blade 240 to resist the wind pressure corresponds to a multiple of the number, the angle will be changed at the desired wind speed
- the force required to further wind the winding 130 is determined by the number of blade angle adjusting devices 100 of the wind generator. This is the case where the multiplied size is smaller than or equal to the area (m 2) of the blade 240 subjected to the wind pressure to the product of the wind speed.
- an apparatus for adjusting the blade angle of the wind power generator according to the wind speed comprising: a shaft; A housing in which the shaft is rotatably installed; And end portions fixed to the shaft and the housing, respectively, to store elastic energy by relative rotation of the shaft and the housing, and to reverse the shaft and the housing to their original state when the force necessary for the relative rotation is released.
- a spring to allow relative rotation thereof wherein one of the shaft and the housing is fixed to a blade installation unit in which the blade is rotated by wind pressure, and the other is fixed to the blade to receive the wind pressure.
- the blade angle adjusting device of the wind generator is provided so that the area of the blade is adjusted according to the magnitude of the wind speed by the spring force.
- the shaft is fixed to be positioned along the longitudinal direction of the blade installation portion provided in the hub so as to extend radially about the hub of the wind generator, the housing is such that the blade fixing plate fixed to the blade protrudes to the side Can be prepared.
- the spring is fixed to the shaft, one end is installed in the housing to surround the shaft, the other end is fixed to the inner surface of the housing, the shaft is respectively installed in the housing so as to be located on both sides of the spring It can be rotatably supported by.
- a stopper provided to protrude from the shaft; And a locking piece installed in the housing so as to be located within the rotational trajectory of the stopper, and caught by the stopper such that an area subjected to wind pressure with respect to the blade rotating by the elastic force of the spring does not exceed a desired size.
- the locking piece may be selectively fixed at any one of a plurality of positions within the rotational trajectory to adjust the maximum size of an area under which the blade is subjected to wind pressure.
- a wind generator comprising: a hub rotatably installed on a nacelle; Blade installation portion is fixed so that rotation is suppressed to extend in the radial direction about the hub; A blade angle adjusting unit installed in the blade installation unit; And a blade fixed to the blade angle adjusting unit, wherein the blade angle adjusting unit is provided with a wind power generator having a blade angle adjusting device including the blade angle adjusting device of the wind generator.
- the blade angle adjusting unit may be installed in a plurality of spaced apart along the longitudinal direction in the blade mounting portion, each may be fixed to the side of the blade, the blade mounting portion may be located in front of the blade with respect to the wind direction. .
- the invention is industrially applicable to wind turbines.
- sleeve 120 housing
- bearing 151 inner ring
- nacelle 221 tail wing
- auxiliary wing 361 wing fixation
- control box 371 fixed piece
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Abstract
Description
Claims (6)
- 풍력 발전기의 블레이드 각도를 풍속에 따라 조절하는 장치에 있어서,샤프트;상기 샤프트가 회전 가능하도록 설치되는 하우징; 및상기 샤프트와 상기 하우징에 끝단이 각각 고정됨으로써 상기 샤프트와 상기 하우징의 상대적인 회전에 의해 탄성에너지를 저장하고, 상대적인 회전에 필요한 힘이 해제시, 상기 샤프트와 상기 하우징이 원래의 상태로 복귀하도록 역방향으로 상대적인 회전을 하도록 하는 태엽을 포함하고,상기 샤프트와 상기 하우징 중에서 어느 하나는 상기 블레이드가 풍압에 의해 회전하도록 설치되는 블레이드설치부에 고정되고, 다른 하나는 상기 블레이드에 고정되어, 풍압을 받는 상기 블레이드의 면적이 상기 태엽의 탄성력에 의해서 풍속의 크기에 따라 조절되도록 하는, 풍력 발전기의 블레이드 각도 조절장치.
- 제 1 항에 있어서,상기 샤프트는,상기 풍력 발전기의 허브를 중심으로 반경방향으로 연장되도록 상기 허브에 마련되는 상기 블레이드설치부에 길이방향을 따라 위치하도록 고정되고,상기 하우징은,상기 블레이드에 고정되는 블레이드고정판이 측부에 돌출되도록 마련되는, 풍력 발전기의 블레이드 각도 조절장치.
- 제 1 항에 있어서,상기 태엽은,상기 샤프트에 일단이 고정되어 상기 샤프트를 감싸도록 상기 하우징 내에 설치되고, 다른 일단이 상기 하우징의 내측면에 고정되고,상기 샤프트는,상기 태엽의 양측에 위치하도록 상기 하우징 내에 각각 설치되는 베어링에 의해 회전 가능하게 지지되는, 풍력 발전기의 블레이드 각도 조절장치.
- 제 1 항에 있어서,상기 샤프트에 돌출되도록 마련되는 스토퍼; 및상기 스토퍼의 회전 궤적 내에 위치하도록 상기 하우징에 설치되고, 상기 태엽의 탄성력에 의해 회전하는 상기 블레이드에 대해서 풍압을 받는 면적이 원하는 크기를 벗어나지 않도록 상기 스토퍼에 걸리게 되는 걸림편을 더 포함하고,상기 걸림편은,상기 회전 궤적 내에서 다수의 위치 중 어느 하나에 선택적으로 고정됨으로써 상기 블레이드가 풍압을 받는 면적의 최대 크기를 조절할 수 있도록 하는, 풍력 발전기의 블레이드 각도 조절장치.
- 풍력 발전기에 있어서,나셀에 회전 가능하게 설치되는 허브;상기 허브를 중심으로 반경방향으로 연장되어 회전이 억제되도록 고정되는 블레이드설치부;상기 블레이드설치부에 설치되는 블레이드 각도 조절부; 및상기 블레이드 각도 조절부에 고정되는 블레이드를 포함하고,상기 블레이드 각도 조절부는,제 1 항 내지 제 4 항 중 어느 한 항에 기재된 풍력 발전기의 블레이드 각도 조절장치로 이루어지는, 블레이드 각도 조절장치를 가지는 풍력 발전기.
- 제 5 항에 있어서, 상기 블레이드 각도 조절부는,상기 블레이드설치부에 길이방향을 따라 간격을 두고서 다수로 설치되고, 각각이 상기 블레이드의 측부에 고정되며,상기 블레이드설치부는,풍향에 대하여 상기 블레이드의 전방에 위치하는, 블레이드 각도 조절장치를 가지는 풍력 발전기.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2016511672A JP6126740B2 (ja) | 2013-05-29 | 2014-04-23 | 風力発電機のブレード角度調節装置及びそれを有する風力発電機 |
US14/787,906 US20160108889A1 (en) | 2013-05-29 | 2014-04-23 | Blade angle control apparatus of wind power generator and wind power generator having same |
CN201480024652.7A CN105209751B (zh) | 2013-05-29 | 2014-04-23 | 风力发电机的叶片角度调节装置及具有其的风力发电机 |
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KR1020130061351A KR101314996B1 (ko) | 2013-05-29 | 2013-05-29 | 풍력 발전기의 블레이드 각도 조절장치 및 이를 가지는 풍력발전기 |
KR10-2013-0061351 | 2013-05-29 |
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WO2014193085A1 true WO2014193085A1 (ko) | 2014-12-04 |
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PCT/KR2014/003533 WO2014193085A1 (ko) | 2013-05-29 | 2014-04-23 | 풍력 발전기의 블레이드 각도 조절장치 및 이를 가지는 풍력발전기 |
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US (1) | US20160108889A1 (ko) |
JP (1) | JP6126740B2 (ko) |
KR (1) | KR101314996B1 (ko) |
CN (1) | CN105209751B (ko) |
WO (1) | WO2014193085A1 (ko) |
Families Citing this family (5)
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KR101560498B1 (ko) | 2014-10-13 | 2015-10-14 | 두산중공업 주식회사 | 풍력 발전기용 기어 박스 유닛 및 이의 분해 방법 |
CN110578652B (zh) * | 2018-06-07 | 2020-12-25 | 李相同 | 一种叶片可自调节保护的风力发电装置 |
CN114845852A (zh) | 2019-10-01 | 2022-08-02 | 西帕股份有限公司 | 用于模制瓶预制件的仪器和方法 |
CN112160864B (zh) * | 2020-10-28 | 2021-08-24 | 山东科技大学 | 一种经典颤振抑制式风力机叶片结构及颤振抑制系统 |
CN113137333B (zh) * | 2021-05-21 | 2022-04-22 | 广州赛特新能源科技发展有限公司 | 一种耐腐蚀的尾舵及风力发电机 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4878808A (en) * | 1987-05-14 | 1989-11-07 | Anton Wildenauer | Airfoil for a wind-driven wheel |
KR200370466Y1 (ko) * | 2004-07-26 | 2004-12-17 | 이성용 | 풍차발전기 |
KR20120105645A (ko) * | 2011-03-16 | 2012-09-26 | 화신에너지 주식회사 | 절첩 날개를 구비한 풍력발전기 |
KR20120133954A (ko) * | 2011-06-01 | 2012-12-11 | 최진영 | 수평축 풍력 발전기용 풍력 날개 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5515359U (ko) * | 1978-07-17 | 1980-01-31 | ||
DE3143686A1 (de) * | 1981-11-04 | 1983-05-19 | Walter 2330 Eckernförde Stephenson | Rotorblatt fuer horizontalachs- windkraftanlage |
HU190071B (en) * | 1983-03-10 | 1986-08-28 | Gyimesi,Janos,Hu | Wind engine as well as fluid furthering device operable particularly by wind engine |
US4684817A (en) * | 1985-03-11 | 1987-08-04 | Goldwater John M | Valvular sail power plant |
GB2227286A (en) * | 1989-01-17 | 1990-07-25 | Howden Wind Turbines Limited | Control of a wind turbine and adjustable blade therefor |
JPH087400Y2 (ja) * | 1989-05-30 | 1996-03-04 | 三田工業株式会社 | 現像装置 |
JP3002361U (ja) * | 1994-03-25 | 1994-09-20 | 正吉 野萩 | 受風力可変風車 |
JP3117948U (ja) * | 2005-10-25 | 2006-01-19 | 和▲隆▼ 有川 | 発電用小型風車 |
CN100532832C (zh) * | 2007-09-29 | 2009-08-26 | 陈亦栋 | 风力发电机变桨调速装置 |
JP2009156124A (ja) * | 2007-12-26 | 2009-07-16 | Seiji Hanada | 風車及びこれに用いるブレード |
US8783144B2 (en) * | 2009-05-13 | 2014-07-22 | Bobst Mex Sa | Waste stripping unit with simplified tool change for a packaging production machine |
JP2013032703A (ja) * | 2009-10-26 | 2013-02-14 | Tsuneo Fukui | リング風車による風力発電用風車 |
KR101004343B1 (ko) | 2010-06-23 | 2010-12-27 | (주) 파루 | 풍력 발전기용 날개 경사각 조절 장치 |
WO2015053768A1 (en) * | 2013-10-09 | 2015-04-16 | Siemens Aktiengesellschaft | Hinged vortex generator for excess wind load reduction on wind turbine |
-
2013
- 2013-05-29 KR KR1020130061351A patent/KR101314996B1/ko active IP Right Grant
-
2014
- 2014-04-23 US US14/787,906 patent/US20160108889A1/en not_active Abandoned
- 2014-04-23 WO PCT/KR2014/003533 patent/WO2014193085A1/ko active Application Filing
- 2014-04-23 JP JP2016511672A patent/JP6126740B2/ja active Active
- 2014-04-23 CN CN201480024652.7A patent/CN105209751B/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4878808A (en) * | 1987-05-14 | 1989-11-07 | Anton Wildenauer | Airfoil for a wind-driven wheel |
KR200370466Y1 (ko) * | 2004-07-26 | 2004-12-17 | 이성용 | 풍차발전기 |
KR20120105645A (ko) * | 2011-03-16 | 2012-09-26 | 화신에너지 주식회사 | 절첩 날개를 구비한 풍력발전기 |
KR20120133954A (ko) * | 2011-06-01 | 2012-12-11 | 최진영 | 수평축 풍력 발전기용 풍력 날개 |
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JP6126740B2 (ja) | 2017-05-10 |
US20160108889A1 (en) | 2016-04-21 |
KR101314996B1 (ko) | 2013-10-04 |
JP2016516946A (ja) | 2016-06-09 |
CN105209751A (zh) | 2015-12-30 |
CN105209751B (zh) | 2017-11-17 |
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