WO2012029102A1 - 風力発電装置 - Google Patents
風力発電装置 Download PDFInfo
- Publication number
- WO2012029102A1 WO2012029102A1 PCT/JP2010/064693 JP2010064693W WO2012029102A1 WO 2012029102 A1 WO2012029102 A1 WO 2012029102A1 JP 2010064693 W JP2010064693 W JP 2010064693W WO 2012029102 A1 WO2012029102 A1 WO 2012029102A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ring gear
- wind turbine
- pitch angle
- turbine blade
- gear
- Prior art date
Links
- 238000010248 power generation Methods 0.000 title abstract 3
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 239000011295 pitch Substances 0.000 description 66
- 230000008859 change Effects 0.000 description 9
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 4
- 239000011151 fibre-reinforced plastic Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
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
- F03D7/00—Controlling wind motors
-
- 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
-
- 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
-
- 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
- F05B2260/40—Transmission of power
- F05B2260/403—Transmission of power through the shape of the drive components
- F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
-
- 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
- F05B2260/50—Kinematic linkage, i.e. transmission of position
- F05B2260/503—Kinematic linkage, i.e. transmission of position using gears
-
- 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
- F05B2260/76—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism using auxiliary power sources
-
- 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
- F05B2260/79—Bearing, support or actuation arrangements therefor
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- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/49336—Blade making
Definitions
- the present invention relates to a wind turbine generator equipped with an electric pitch driving device that controls the pitch angle of a wind turbine blade.
- a wind turbine generator is a device that generates power by a generator that is driven by rotating a rotor head provided with wind turbine blades by receiving wind force and increasing the speed of the rotation by a gearbox.
- the rotor head described above is installed on a wind turbine tower and attached to an end of a nacelle that can be turned by yaw, and is supported so as to be rotatable around a substantially horizontal lateral rotation axis.
- Such a wind power generator performs pitch control to change the angle of the wind turbine blade in order to control the output according to the wind speed.
- a conventional pitch driving device a hydraulic pitch driving device using hydraulic pressure and an electric pitch driving device using an electric motor (for example, see Patent Document 1) are known.
- a conventional electric pitch driving device includes an electric motor serving as a driving source and a pinion gear that rotates via a speed reducer with the driving force of the electric motor, and is fixedly supported on the rotor hub side.
- the wind turbine blade includes a ring gear that meshes with the pinion gear, and a base end (base) side of the wind turbine blade is attached to the rotor hub via a bearing. Therefore, the wind turbine blade rotates the entire wind turbine blade relative to the rotor hub integrally with the ring gear meshing with the pinion gear according to the rotation amount of the pinion gear, so that the pitch angle of the wind turbine blade is changed to a desired value. be able to.
- Such a pitch drive mechanism requires replacement of the entire wind turbine blade, for example, when the teeth of the ring gear are damaged. At this time, it is necessary to work in high places using equipment such as cranes.
- the present inventors verified the operation of the electric pitch drive mechanism, and obtained the knowledge that the frequency of the pitch angle is concentrated in a part and does not move more than 95 degrees.
- the meshing range of the ring gear that meshes with the pinion gear at the time of pitch angle control is actually about 1/4 even though the teeth of the ring gear are provided over the entire circumference (360 degrees) of the wind turbine blade. Only the angle range of about 95 degrees is used.
- the present invention has been made in order to solve the above-described problems.
- the object of the present invention is to effectively utilize the teeth of the ring gear provided over the entire circumference of the wind turbine blade.
- An object of the present invention is to provide a wind turbine generator equipped with an electric drive pitch control device that can reduce the number of times of work at a high place using a crane or the like even if it is damaged.
- a wind turbine generator includes an electric pitch driving device that controls a pitch angle by driving a pinion gear that meshes with a ring gear on a wind turbine blade side by an electric motor.
- a meshing range variable mechanism for changing a meshing range at the time of pitch angle control of the ring gear meshed with the rotating pinion gear at the time of pitch angle control is provided.
- the meshing range variable mechanism for changing the meshing range at the time of pitch angle control of the pinion gear fixedly supported on the rotor head side and the ring gear meshed at the time of pitch angle control is provided. Therefore, if the teeth of the ring gear are damaged, the meshing range between the ring gear and the pinion gear meshed with the ring gear, which is normally formed in the range of 360 degrees, is changed, and the meshing range during the pitch angle control of the ring gear is changed. It can be moved to an undamaged area.
- the meshing range can be changed to a non-damaged region by changing the meshing range during pitch angle control that is used only about 95 degrees by the meshing range variable mechanism and moving it in the circumferential direction. Therefore, the necessary pitch angle control can be performed without exchanging the ring gear.
- the design life of the ring gear can be shortened by changing the meshing range with the pinion gear before the ring gear is damaged.
- the meshing range variable mechanism is preferably a fixed support portion of the electric pitch driving device that is provided at a plurality of locations in the circumferential direction of the ring gear on the rotor hub side and can be selected.
- the meshing range during the pitch angle control of the ring gear can be changed to an area without damage.
- the meshing range variable mechanism is a fixing / unlocking switching means provided between the ring gear and the wind turbine blade, and when the teeth of the ring gear are damaged thereby If the fixing between the ring gear and the wind turbine blade is released by the fixing / fixing release switching means and the ring gear itself is rotated in the circumferential direction, the meshing range at the time of pitch angle control that meshes with the pinion gear on the fixed side is damaged. Can be changed to no area.
- the fixing / unlocking switching means for example, there is a structure in which a ring gear is fixed to a wind turbine blade by using a plurality of bolts and nuts.
- the ring gear can be rotated with respect to the wind turbine blade. Since normal wind turbine blades are made of fiber reinforced plastic (FRP), it is desirable to provide a metal connection ring on the wind turbine blade side where the ring gear is fixed with bolts and nuts.
- FRP fiber reinforced plastic
- the meshing range variable mechanism moves the meshing range during the pitch angle control in the circumferential direction to change it. Therefore, it is possible to control the pitch angle by using an area where the teeth are not damaged even if the ring gear is not changed by high-level work using equipment such as a crane. That is, based on the knowledge that the meshing range during pitch angle control is about 95 degrees, the ring gear provided over the entire circumference of the wind turbine blade is effectively used, and the electric drive pitch control device is restored at a low cost and in a short time. Since it was made possible, the cost required for repair and the loss due to the shutdown of the wind turbine generator can be reduced. Furthermore, it is also possible to change the meshing range with the pinion gear before the ring gear breaks. As a result, the design life of the ring gear can be shortened and the cost can be reduced.
- FIG. 1 is a perspective view showing a configuration example of a rotor head provided with a meshing range variable mechanism of an electric drive pitch control device as a first embodiment of a wind turbine generator according to the present invention. It is sectional drawing which shows the pinion gear periphery structure by which the pinion gear of an electrically driven pitch control apparatus is fixedly supported by the rotor head. It is a figure which shows the frequency of the pitch angle which a pinion gear and a ring gear mesh at the time of pitch angle control in an electrically driven pitch control apparatus.
- FIG. 1 is a perspective view showing a configuration example of a rotor head provided with a meshing range variable mechanism of an electric drive pitch control device as a first embodiment of a wind turbine generator according to the present invention. It is sectional drawing which shows the pinion gear periphery structure by which the pinion gear of an electrically driven pitch control apparatus is fixedly supported by the rotor head. It is a figure which shows the frequency of the pitch angle which a pinion gear and a
- FIG. 5 is a cross-sectional perspective view of a main part showing a configuration example of a wind turbine blade provided with a meshing range variable mechanism of an electrically driven pitch control device as a second embodiment of the wind turbine generator according to the present invention. It is sectional drawing which shows the example of a connection structure of the bearing inner ring
- a wind turbine generator 1 shown in FIG. 6 includes a wind turbine tower (hereinafter referred to as “tower”) 2 erected on the foundation B, a nacelle 3 installed at the upper end of the tower 2, and a substantially horizontal lateral direction. And a rotor head 4 ⁇ / b> A provided on the front end side of the nacelle 3 so as to be rotatable around the rotation axis of the nacelle 3.
- tower wind turbine tower
- a plurality of (for example, three) wind turbine blades 5 are attached to the rotor head 4A in a radial pattern around the rotation axis. Thereby, the force of the wind which hits the windmill blade 5 from the rotation axis direction of the rotor head 4A is converted into power for rotating the rotor head 4A around the rotation axis.
- the wind turbine blade 5 described above includes an electric pitch driving device 10 that controls the pitch angle of the wind turbine blade 5 as shown in FIGS. 1 and 2, for example, in order to control the output according to the wind speed.
- This electric pitch driving device 10 is fixedly supported on a rotor hub, and rotates a pinion gear 12 that meshes with the ring gear 11 on the wind turbine blade 5 side by a motor 13 in response to a command from a control device (not shown). is there.
- the normal electric pitch driving device 10 includes a reduction gear 14 interposed between the electric motor 13 and the pinion gear 12.
- the electric motor 13, the reduction gear 14 and the pinion gear 12 are generically named. It will be called a pinion drive mechanism PD.
- the wind turbine blade 5 is rotatably supported by the rotor hub 4 via a bearing 15.
- the bearing 15 is a rolling bearing having a configuration in which a large number of rolling elements 15c are sandwiched between the outer ring 15a and the inner ring 15b, and the outer ring 15a is connected to the rotor hub 4 side to become a fixed side.
- a base end portion (root) of the wind turbine blade 5 rotated by pitch angle control is connected to the inner ring 15b, and a ring gear 11 is provided on the inner peripheral surface of the inner ring 15b.
- a meshing range variable mechanism for changing the hour meshing range is provided.
- the meshing range variable mechanism of this embodiment is a pinion drive mechanism fixed support portion 20 that is provided in advance at a plurality of locations on the rotor hub 4 side and can be selected. In the configuration example shown in FIG. 1, four pinion gear fixed support portions 20 are provided at positions protruding inward of the blade attachment holes 4 a that open to the rotor hub 4.
- the pinion drive mechanism fixing support portions 20 described above are provided at four positions with a 90-degree pitch in the circumferential direction of the ring gear 11, and the pinion drive mechanism PD is actually used to fix and support the pinion drive mechanism PD. There are only places. Therefore, the remaining three places become the pinion gear fixed support portion 20 where the pinion drive mechanism PD is not installed.
- the pinion gear fixed support part 20 is not limited to the above-mentioned four places, For example, you may provide three places with a 180 degree pitch and two places with a 120 degree pitch in the circumferential direction.
- the pinion drive mechanism fixing support portion 20 shown in the figure has a configuration in which an installation seat surface 21 protruding from the rotor hub 4 into the blade mounting hole 4a is provided, and an installation hole 22 is opened in the installation seat surface 21. It is not limited to such a configuration. As another configuration example, for example, in order to reinforce the periphery of the blade attachment hole 4a opened in the rotor head 4, the attachment hole 22 is opened using a rib formed so as to cross the blade attachment hole 4a. There is something.
- the plurality of pinion drive mechanism fixing support portions 20 are provided in advance, when the teeth of the ring gear 11 are partially damaged or a sign of damage is found, other pinion drive mechanisms are provided.
- the position where the pinion gear 12 is fixedly supported by the rotor hub 4 moves in the circumferential direction of the ring gear 11.
- the pinion drive mechanism PDa before the position change moves 90 degrees in the circumferential direction of the ring gear 11 to become the pinion drive mechanism PDb after the position change. Note that after the position of the pinion drive mechanism PD is changed, calibration for adjusting the zero point of the encoder is performed.
- the region where the teeth of the ring gear 11 can be damaged is a meshing range during pitch angle control of about 95 degrees where the pitch angle control is performed by meshing with the pinion gear 12, as shown in FIG.
- the horizontal axis represents the pitch angle
- the vertical axis represents the frequency.
- the frequency of the pitch angle control performed during the operation of the wind turbine generator 1 is approximately in the range of 15 to 45 degrees and approximately 110. Since the ring gear 11 is in the range around 50 degrees, the actually used ring gear 11 is in the range of approximately 95 degrees (from 15 degrees to 110 degrees).
- the pitch angle control can be performed without replacing the ring gear 11. Is possible. If the teeth of the ring gear 11 are damaged near the end of the meshing range during pitch angle control, the pinion drive mechanism fixed support portion 20 at a position shifted 90 degrees or 180 degrees to the opposite side is used. It is only necessary to prevent the damaged tooth from entering the meshing range at the time of proper pitch angle control.
- the meshing range variable mechanism of this embodiment is a fixing / fixing release switching means 30 provided between the ring gear and the wind turbine blade.
- the illustrated fixing / fixing switching means 30 has a structure for fixing the ring gear 11A to the wind turbine blade 5A using a plurality of bolts and nuts 31, for example.
- the ring gear 11A includes a flange portion 11a formed on the upper end side.
- the flange portion 11 a is a portion for fixing the ring gear 11 ⁇ / b> A to the wind turbine blade 5 ⁇ / b> A by the bolt / nut 31.
- the wind turbine blade 5A is configured such that a metal coupling ring 32 is interposed between the FRP wind turbine blade main body 5a and the inner ring 15b.
- the connection ring 32 is used at a position that coincides with the flange portion 11a of the ring gear 11A, and the fixing of the ring gear 11A by the bolt and nut 31 is performed on the connection ring 32 that is a metal part. ing.
- the inner ring 15b, the connecting ring 32, and the wind turbine blade main body 5a are connected by a large number of embedded bolts and nuts 33 embedded in the wind turbine blade main body 5a, for example, as shown in FIG.
- the ring gear 5a can be rotated with respect to the wind turbine blade 5A by rotating the pinion gear 12 in a state where the fixing of the ring gear 11A is released. That is, if the pinion gear 12 fixed to the rotor head 4 is rotated after the bolts and nuts 31 are removed, the ring gear 11A that has become free with respect to the wind turbine blade 5A rotates, so that the pinion gear 12 The portion where the teeth of the ring gear 11A are damaged can be outside the meshing range during pitch angle control. Also in this case, after the ring gear 11A is rotated and the bolts and nuts 31 are attached and fixed, calibration for adjusting the zero point of the encoder is performed. The ring gear 11A, the connecting ring 32 and the inner ring 15b are contacted with a surface treatment so that the frictional force is reduced, or an oil supply groove is provided so that oil is supplied during rotation. Smooth rotation of 11A becomes possible.
- the bolt / nut 31 of the fixing / fixing release switching means if the bolt / nut 31 is removed and the fixing between the ring gear 11A and the wind turbine blade 5A is released, the ring gear 11A is rotated. By rotating in the direction, it is possible to change the meshing range at the time of pitch angle control that meshes with the pinion gear 12 on the fixed side to an area without damage.
- the connecting ring 32 described above is provided with a metal member on the side of the wind turbine blade 5A because there is a concern about strength when the ring gear 11A is fixed to the wind turbine blade body 5a made of FRP with the bolt and nut 31. is there.
- the meshing range variable mechanism can change the meshing range during pitch angle control by moving it in the circumferential direction. For this reason, it is possible to perform pitch angle control using a region where the teeth are not damaged without exchanging the ring gears 11 and 11A by a high-place work using equipment such as a crane.
- the operation of the wind turbine generator 1 can be resumed at a low cost and in a short time. Also, loss due to shutdown can be reduced.
- the meshing position is changed before the ring gears 11 and 11A are broken, by finding and changing the sign of damage, it is possible to perform a quick action by a simple work, so the operation stop time is minimized. Can be suppressed.
- the design life of the ring gears 11 and 11A can be shortened and the cost can be reduced. That is, by dispersing the area that meshes with the pinion gear 12, the time for actually meshing with the pinion gear 12 is shortened, so the design life of the ring gears 11 and 11A can be reduced to less than half and the cost can be reduced. .
- the present invention is not limited to the above-described embodiment. For example, a structure in which a gear is formed on the outer ring side of the bearing and meshed with the pinion gear, or a ring gear directly on the inner ring of the bearing without using a connecting ring. It is possible to appropriately change within a range that does not depart from the gist of the present invention, such as a configuration for fixing the.
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Abstract
Description
上述したロータヘッドは、風車用タワー上に設置されてヨー旋回可能なナセルの端部に取り付けられ、略水平な横方向の回転軸線周りに回転可能となるように支持されている。
従来のピッチ駆動装置としては、油圧を用いた油圧ピッチ駆動装置や、電動機を用いた電動ピッチ駆動装置(たとえば、特許文献1参照)が知られている。
本発明は、上記の課題を解決するためになされたものであり、その目的とするところは、風車翼の全周にわたって設けられているリングギアの歯を有効利用することにより、リングギアの歯が損傷してもクレーン等を用いた高所作業の回数を低減できる電動駆動ピッチ制御装置を備えた風力発電装置を提供することにある。
本発明の風力発電装置は、風車翼側のリングギアと噛合するピニオンギアを電動機により駆動してピッチ角を制御する電動ピッチ駆動装置を備えている風力発電装置において、ロータヘッド側に固定支持されて回動する前記ピニオンギアとピッチ角制御時に噛合する前記リングギアのピッチ角制御時噛合範囲を変化させる噛合範囲可変機構を設けたことを特徴とするものである。
また、リングギアが破損する前にピニオンギアとの噛合範囲を変化させることにより、リングギアの設計寿命を短縮することも可能である。
なお、この場合のピニオンギア固定支持部は、周方向に等ピッチで2~4箇所を予め設けておくことが望ましい。
この場合の固定/固定解除切替手段としては、たとえば風車翼に対して複数のボルト・ナットを用いてリングギアを固定する構造があり、リングギアの固定を解除した状態でピニオンギアを回転させれば、風車翼に対してリングギアを回転させることができる。
なお、通常の風車翼は繊維強化プラスチック(FRP)製であるため、ボルト・ナットでリングギアを固定する風車翼側には、金属製の連結リングを設けておくことが望ましい。
さらに、リングギアが破損する前にピニオンギアとの噛合範囲を変更することも可能であり、この結果、リングギアの設計寿命を短縮してコストダウンを達成できる。
図6に示す風力発電装置1は、基礎B上に立設される風車用タワー(以下では「タワー」と呼ぶ)2と、タワー2の上端に設置されるナセル3と、略水平な横方向の回転軸線周りに回転可能に支持されてナセル3の前端部側に設けられるロータヘッド4Aとを有している。
なお、通常の電動ピッチ駆動装置10は、電動機13とピニオンギア12との間に介在する減速機14を備えており、以下の説明では、電動機13、減速機14及びピニオンギア12を総称してピニオン駆動機構PDと呼ぶことにする。
本実施形態の噛合範囲可変機構は、ロータハブ4側に予め複数箇所設けて選択可能としたピニオン駆動機構固定支持部20である。図1に示す構成例では、4箇所のピニオンギア固定支持部20が、ロータハブ4に開口する翼取付穴4aの内側へ突出した位置に設けられている。
なお、ピニオンギア固定支持部20は、上述した4箇所に限定されることはなく、たとえば周方向に180度ピッチで2箇所や120度ピッチで3箇所を予め設けてもよい。
なお、他の構成例としては、たとえばロータヘッド4に開口する翼取付穴4aの周辺を補強するため、翼取付穴4aを横断するように形成されるリブを利用して取付穴22を開口させるものがある。
なお、ピニオン駆動機構PDの位置変更後には、エンコーダの0点調整を行うキャリブレーションを実施する。
なお、リングギア11の歯がピッチ角制御時噛合範囲の端部付近で破損した場合には、反対側へ90度または180度ずらした位置にあるピニオン駆動機構固定支持部20を使用し、新たなピッチ角制御時噛合範囲内に破損した歯が入らないようにすればよい。
本実施形態の噛合範囲可変機構は、リングギアと風車翼との間に設けた固定/固定解除切替手段30である。
この場合のリングギア11Aは、上端部側に形成されたフランジ部11aを備えている。このフランジ部11aは、ボルト・ナット31によりリングギア11Aを風車翼5Aに固定するための部分である。
なお、内輪15b、連結リング32及び風車翼本体5aは、たとえば図5に示すように、風車翼本体5aに埋め込まれた多数の埋込ボルト・ナット33により連結されている。
なお、リングギア11Aと、連結リング32及び内輪15bとの接触面には、摩擦力が低減するように表面処理を施したり、給油溝を設けて回転時に給油しておくことなどにより、リングギア11Aのスムーズな回転が可能になる。
なお、上述した連結リング32は、FRP製の風車翼本体5aにボルト・ナット31でリングギア11Aを固定すると強度面の懸念があるため、風車翼5A側に金属製の部材を設けたものである。
また、リングギア11,11Aが破損する前に噛合位置を変更する場合、損傷の予兆を発見して変更することで、簡単な作業による速やかな処置が可能になるので、運転停止時間を最小限に抑えることができる。
なお、本発明は上述した実施形態に限定されるものではなく、たとえば軸受の外輪側に歯車を形成してピニオンギアと噛合する構成や、連結リングを用いずに、軸受の内輪に直接リングギアを固定する構成など、本発明の要旨を逸脱しない範囲内において適宜変更することができる。
2 風車用タワー
3 ナセル
4A ロータヘッド
4 ロータハブ
4a 翼取付穴
5,5A 風車翼
10 電動ピッチ駆動装置
11,11A リングギア
12 ピニオンギア
15 軸受
20 ピニオン駆動機構固定支持部(噛合範囲可変機構)
21 設置座面
22 取付穴
30 固定/固定解除切替手段(噛合範囲可変機構)
31 ボルト・ナット
32 連結リング
PD ピニオン駆動機構
Claims (3)
- 風車翼側のリングギアと噛合するピニオンギアを電動機により駆動してピッチ角を制御する電動ピッチ駆動装置を備えている風力発電装置において、
前記ピニオンギアとピッチ角制御時に噛合する前記リングギアのピッチ角制御時噛合範囲を変化させる噛合範囲可変機構を設けたことを特徴とする風力発電装置。 - 前記噛合範囲可変機構は、ロータハブ側のリングギア周方向に複数箇所設けられて選択可能な前記電動ピッチ駆動装置の固定支持部であることを特徴とする請求項1に記載の風力発電装置。
- 前記噛合範囲可変機構は、前記リングギアと前記風車翼との間に設けた固定/固定解除切替手段であることを特徴とする請求項1に記載の風力発電装置。
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2724323A CA2724323A1 (en) | 2010-08-30 | 2010-08-30 | Pitch angle control for wind turbine generator |
KR1020117007105A KR20120073155A (ko) | 2010-08-30 | 2010-08-30 | 풍력 발전 장치 |
JP2010549959A JPWO2012029102A1 (ja) | 2010-08-30 | 2010-08-30 | 風力発電装置 |
BRPI1004560A BRPI1004560A2 (pt) | 2010-08-30 | 2010-08-30 | gerador de turbina eólica |
AU2010257329A AU2010257329A1 (en) | 2010-08-30 | 2010-08-30 | Wind turbine generator |
CN2010800027470A CN102523749A (zh) | 2010-08-30 | 2010-08-30 | 风力发电装置 |
PCT/JP2010/064693 WO2012029102A1 (ja) | 2010-08-30 | 2010-08-30 | 風力発電装置 |
KR1020137003162A KR20130036121A (ko) | 2010-08-30 | 2010-08-30 | 풍력 발전 장치 |
EP10790508.5A EP2613048A1 (en) | 2010-08-30 | 2010-08-30 | Wind power generation apparatus |
US12/977,339 US20110142631A1 (en) | 2010-08-30 | 2010-12-23 | Wind turbine generator |
US13/345,788 US8523521B2 (en) | 2010-08-30 | 2012-01-09 | Wind turbine generator |
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PCT/JP2010/064693 WO2012029102A1 (ja) | 2010-08-30 | 2010-08-30 | 風力発電装置 |
Related Child Applications (1)
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US12/977,339 Continuation US20110142631A1 (en) | 2010-08-30 | 2010-12-23 | Wind turbine generator |
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WO2012029102A1 true WO2012029102A1 (ja) | 2012-03-08 |
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US (2) | US20110142631A1 (ja) |
EP (1) | EP2613048A1 (ja) |
JP (1) | JPWO2012029102A1 (ja) |
KR (2) | KR20130036121A (ja) |
CN (1) | CN102523749A (ja) |
AU (1) | AU2010257329A1 (ja) |
BR (1) | BRPI1004560A2 (ja) |
CA (1) | CA2724323A1 (ja) |
WO (1) | WO2012029102A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3587804A1 (en) | 2018-06-26 | 2020-01-01 | Mitsubishi Heavy Industries, Ltd. | Wind turbine power generation facility and maintenance method therefore |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8924162B2 (en) * | 2010-05-13 | 2014-12-30 | University Of Cincinnati | Turbine-to-turbine prognostics technique for wind farms |
ITBO20110482A1 (it) * | 2011-08-03 | 2013-02-04 | Bonfiglioli Riduttori Spa | Generatore eolico |
ES2570560T3 (es) | 2011-11-17 | 2016-05-19 | Vestas Wind Sys As | Turbina eólica que comprende un sistema de regulación de ángulo de paso de pala |
JP5546625B2 (ja) | 2011-11-22 | 2014-07-09 | 三菱重工業株式会社 | 風力タービン |
EP2623772A1 (en) * | 2012-02-06 | 2013-08-07 | Alstom Wind, S.L.U. | Wind turbine rotor |
DK177513B1 (en) * | 2012-03-29 | 2013-08-19 | Envision Energy Denmark Aps | Pitch Lock System |
ES2430763B1 (es) * | 2012-05-21 | 2014-10-01 | Gamesa Innovation & Technology S.L | Segmento dentado para el rodamiento de paso de un aerogenerador |
EP2703644B1 (en) | 2012-08-27 | 2016-08-03 | Alstom Wind, S.L.U. | Angular positioning system for a wind turbine |
FR2997158B1 (fr) * | 2012-10-22 | 2016-11-25 | Skf Ab | Palier a roulement, notamment pour propulseur de navires ou pour eolienne |
FR2997159B1 (fr) | 2012-10-22 | 2016-11-25 | Skf Ab | Palier a roulement, notamment pour propulseur de navires ou pour eolienne |
WO2015018382A1 (de) * | 2013-08-08 | 2015-02-12 | Imo Holding Gmbh | Blattlagerbaugruppe |
KR101531265B1 (ko) * | 2014-03-26 | 2015-06-24 | 삼성중공업 주식회사 | 풍력 발전기 |
DE102014205816A1 (de) * | 2014-03-28 | 2015-10-01 | Aktiebolaget Skf | Lageranordnung zur drehbaren Lagerung eines Turbinenblattes an einer Turbinennabe |
WO2019229081A1 (en) * | 2018-05-29 | 2019-12-05 | Mhi Vestas Offshore Wind A/S | Geared transmission device and operating method thereof in case of gear damage |
CN108775273B (zh) * | 2018-06-27 | 2019-08-06 | 新疆金风科技股份有限公司 | 变桨机构及风力发电机组 |
CN109098931B (zh) * | 2018-07-19 | 2021-01-15 | 钱枫 | 一种船舶用太阳能和风力组合式发电装置 |
CN113738593B (zh) * | 2020-05-29 | 2023-08-22 | 北京金风科创风电设备有限公司 | 风力发电机组液压变桨系统的测试系统 |
CN116677559B (zh) * | 2023-05-29 | 2024-02-09 | 湖北万邦电机股份有限公司 | 一种风力发电机的变桨距设备 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007138751A (ja) * | 2005-11-15 | 2007-06-07 | Nabtesco Corp | ピッチ駆動装置 |
JP2009516118A (ja) * | 2005-11-10 | 2009-04-16 | ケイドン コーポレイション | 風力タービンピッチ軸受及び方法 |
US7717673B2 (en) | 2003-09-03 | 2010-05-18 | General Electric Company | Redundant blade pitch control system for a wind turbine and method for controlling a wind turbine |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1277052C (zh) * | 2000-11-14 | 2006-09-27 | 阿洛伊斯·沃本 | 风能装置 |
DE10140793A1 (de) * | 2001-08-20 | 2003-03-06 | Gen Electric | Einrichtung zum Verstellen des Rotorblattes eines Rotors einer Windkraftanlage |
EP1647708A1 (en) * | 2004-10-14 | 2006-04-19 | General Electric Company | Pitch drive system for a wind turbine |
WO2010017820A2 (en) * | 2008-08-13 | 2010-02-18 | Vestas Wind Systems A/S | Wind turbine rotor and method of calibrating rotor blade pitch |
US7730627B2 (en) * | 2008-10-08 | 2010-06-08 | General Electric Company | Method and device for measuring gear tooth wear |
US8091199B2 (en) * | 2009-03-19 | 2012-01-10 | General Electric Company | Method to repair pitch control components |
US20100143136A1 (en) * | 2009-08-31 | 2010-06-10 | Jeffrey Michael Daniels | Systems and methods for assembling a pitch assembly for use in a wind turbine |
US8092171B2 (en) * | 2009-09-30 | 2012-01-10 | General Electric Company | Systems and methods for assembling a pitch assembly for use in a wind turbine |
-
2010
- 2010-08-30 EP EP10790508.5A patent/EP2613048A1/en not_active Withdrawn
- 2010-08-30 CA CA2724323A patent/CA2724323A1/en not_active Abandoned
- 2010-08-30 BR BRPI1004560A patent/BRPI1004560A2/pt not_active IP Right Cessation
- 2010-08-30 CN CN2010800027470A patent/CN102523749A/zh active Pending
- 2010-08-30 AU AU2010257329A patent/AU2010257329A1/en not_active Abandoned
- 2010-08-30 KR KR1020137003162A patent/KR20130036121A/ko not_active Application Discontinuation
- 2010-08-30 WO PCT/JP2010/064693 patent/WO2012029102A1/ja active Application Filing
- 2010-08-30 JP JP2010549959A patent/JPWO2012029102A1/ja active Pending
- 2010-08-30 KR KR1020117007105A patent/KR20120073155A/ko active Application Filing
- 2010-12-23 US US12/977,339 patent/US20110142631A1/en not_active Abandoned
-
2012
- 2012-01-09 US US13/345,788 patent/US8523521B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7717673B2 (en) | 2003-09-03 | 2010-05-18 | General Electric Company | Redundant blade pitch control system for a wind turbine and method for controlling a wind turbine |
JP2009516118A (ja) * | 2005-11-10 | 2009-04-16 | ケイドン コーポレイション | 風力タービンピッチ軸受及び方法 |
JP2007138751A (ja) * | 2005-11-15 | 2007-06-07 | Nabtesco Corp | ピッチ駆動装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3587804A1 (en) | 2018-06-26 | 2020-01-01 | Mitsubishi Heavy Industries, Ltd. | Wind turbine power generation facility and maintenance method therefore |
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CN102523749A (zh) | 2012-06-27 |
CA2724323A1 (en) | 2012-02-29 |
US8523521B2 (en) | 2013-09-03 |
KR20120073155A (ko) | 2012-07-04 |
BRPI1004560A2 (pt) | 2016-08-09 |
US20110142631A1 (en) | 2011-06-16 |
EP2613048A1 (en) | 2013-07-10 |
US20120114487A1 (en) | 2012-05-10 |
JPWO2012029102A1 (ja) | 2013-10-28 |
KR20130036121A (ko) | 2013-04-10 |
AU2010257329A1 (en) | 2012-03-15 |
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