CN112922789A - Horizontal shaft wind turbine with obliquely-arranged tower and wind generating set - Google Patents

Horizontal shaft wind turbine with obliquely-arranged tower and wind generating set Download PDF

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Publication number
CN112922789A
CN112922789A CN202110426476.1A CN202110426476A CN112922789A CN 112922789 A CN112922789 A CN 112922789A CN 202110426476 A CN202110426476 A CN 202110426476A CN 112922789 A CN112922789 A CN 112922789A
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CN
China
Prior art keywords
tower
transmission
wind turbine
bevel gear
generator
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Pending
Application number
CN202110426476.1A
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Chinese (zh)
Inventor
李文龙
梁涛
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Ningbo Aisi Information Technology Co ltd
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Ningbo Aisi Information Technology Co ltd
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Publication date
Application filed by Ningbo Aisi Information Technology Co ltd filed Critical Ningbo Aisi Information Technology Co ltd
Priority to CN202110426476.1A priority Critical patent/CN112922789A/en
Publication of CN112922789A publication Critical patent/CN112922789A/en
Pending legal-status Critical Current

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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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for 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
    • 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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/22—Foundations specially adapted for 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
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • 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
    • F03D7/0204—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/80—Arrangement of components within nacelles or towers
    • F03D80/88—Arrangement of components within nacelles or towers of mechanical components
    • 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
    • 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
    • F05B2270/10—Purpose of the control system
    • 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
    • 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
    • Y02E10/728—Onshore wind turbines

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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

The invention discloses a horizontal axis wind turbine with a tower frame obliquely arranged and a wind generating set, wherein the horizontal axis wind turbine comprises: the upper end of the tower is provided with a supporting seat; the hub is rotationally connected to the supporting seat, and a plurality of impellers are arranged on the circumference of the hub at intervals; a generator compartment disposed at a bottom of the tower; and the hub is in transmission connection with the generator cabin through the transmission assembly. The tower is arranged to be inclined, the generator room is arranged at the bottom of the tower, the distance between the blade tip and the tower is increased, and the blade tip is prevented from colliding with the tower after being deformed under the action of wind power; the tower tilts to lead the gravity center to move forwards, the bending moment generated by gravity is opposite to the bending moment generated by wind power, partial load can be offset, and the size of the tower can be reduced; the inclination angle of the axis of the wind wheel can be reduced, the swept area of the impeller is increased, and the wind energy capture efficiency is improved.

Description

Horizontal shaft wind turbine with obliquely-arranged tower and wind generating set
Technical Field
The invention belongs to the technical field of wind turbines, and particularly relates to a horizontal shaft wind turbine with an obliquely-arranged tower and a wind generating set.
Background
At present horizontal axis aerogenerator's structure, generally adopt and fix the vertically pylon, the generator compartment is connected with the pylon rotation through rotatable driftage system, and wheel hub is connected with the cabin rotation, and this kind of structural style has following 2 main problems:
1. the engine room is heavy, difficult to hoist, difficult to install and maintain and difficult to maintain in the later period;
2. when the wind power generator works, the deflection of the blade tip along the wind direction is large, and in order to avoid the blade tip from colliding with a tower, the hub shaft needs to be inclined upwards, so that the wind energy capturing efficiency is reduced.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a horizontal shaft wind turbine with an obliquely-arranged tower and a wind generating set so as to reduce the weight of the top of the tower and improve the wind energy capturing efficiency.
In order to solve the technical problems, the invention adopts the technical scheme that:
one aspect of the present invention provides a horizontal axis wind turbine with a tower placed in an inclined manner, including:
the upper end of the tower is provided with a supporting seat;
the hub is rotationally connected to the supporting seat, and a plurality of impellers are arranged on the circumference of the hub at intervals;
a generator compartment disposed at a bottom of the tower;
and the hub is in transmission connection with the generator cabin through the transmission assembly.
In some embodiments of the invention, the tower is arranged inclined towards the windward side.
In some embodiments of the invention, the axis of the hub is parallel to the wind direction.
In some embodiments of the invention, the tower is non-circular in cross-section and the plane of maximum bending stiffness of the tower coincides with the plane of maximum bending moment applied to the tower.
In some embodiments of the invention, further comprising a base, the generator housing being rotatably coupled to the base.
In some embodiments of the present invention, a rotating platform is rotatably connected to the base, and the generator room is disposed on the rotating platform.
In some embodiments of the present invention, the bottom of the tower is fixedly connected to the rotating platform, and the generator room is sleeved on the bottom of the tower and is fixedly connected to the rotating platform.
In some embodiments of the invention, the rotatable platform and the base are coupled by a gear drive.
In some embodiments of the present invention, the base is provided with a matching gear ring disposed around a rotation axis of the rotary platform, the rotary platform is provided with a driving motor, the driving motor is provided with a driving gear, and the driving gear is engaged with the matching gear ring.
In some embodiments of the present invention, the transmission assembly includes a transmission shaft rotatably disposed in the tower, the output shaft of the hub is in transmission connection with the upper end of the transmission shaft, and the input shaft of the generator room is in transmission connection with the lower end of the transmission shaft.
In some embodiments of the invention, the transmission assembly further comprises a first transmission member disposed in the support base and a second transmission member disposed at the bottom of the tower;
the first transmission piece comprises a first bevel gear and a second bevel gear meshed with and matched with the first bevel gear, the first bevel gear is arranged on the output shaft, and the second bevel gear is connected with the upper end of the transmission shaft;
the second transmission piece comprises a third bevel gear and a fourth bevel gear meshed and matched with the third bevel gear, the third bevel gear is arranged on the input shaft, and the fourth bevel gear is connected with the lower end of the transmission shaft.
The invention further provides a wind generating set which comprises the horizontal shaft wind turbine with the obliquely arranged tower.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
the tower is inclined, the distance D between the blade tip and the tower can be increased, the blade tip is prevented from colliding the tower after being deformed under the action of wind power, the inclination angle of the axis of the wind wheel can be reduced to zero, the swept area of the impeller can be increased, and the wind energy capture efficiency is improved.
The inclination of the tower can lead the gravity center to move forward, the bending moment generated by gravity is opposite to the bending moment generated by wind power, namely, the gravity can offset the load under the action of partial wind power, and the size of the tower can be reduced.
The tower is arranged to be inclined, the generator room is arranged at the bottom of the tower, so that the weight of the upper end of the tower is reduced, the dynamic stiffness of the system is improved, the structural strength of the tower can be reduced, the weight of the tower is reduced, the transportation difficulty of the tower is reduced, and meanwhile, the generator room is arranged at the bottom of the tower, so that the generator room is convenient to install, maintain and overhaul.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of a horizontal axis wind turbine according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a horizontal axis wind turbine according to an embodiment of the present invention;
FIG. 3 is a schematic view of an impeller according to an embodiment of the present invention with its axis parallel to the wind direction;
FIG. 4 is a schematic view of an embodiment of the present invention with the axis of the impeller at an angle to the direction of the wind;
FIG. 5 is a schematic perspective view of a horizontal axis wind turbine according to an embodiment of the present invention.
In the figure: 1. a tower; 11. a supporting seat; 2. a hub; 21. an impeller; 22. an output shaft; 3. a generator compartment; 31. an input shaft; 4. a transmission assembly; 41. a drive shaft; 42. a first transmission member; 43. a second transmission member; 5. a base; 51. matching the gear ring; 6. a rotating platform; 61. a drive motor; 611. a drive gear; f1, first direction; f2, second direction; m1, bending moment generated by wind power; m2, bending moment due to self gravity.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 5, in one aspect, the present invention provides a horizontal axis wind turbine with a tower placed at an inclination, including: the tower comprises a tower frame 1, wherein a supporting seat 11 is arranged at the upper end of the tower frame 1; the hub 2 is rotatably connected to the supporting seat 11, and a plurality of impellers 21 are arranged on the hub 2 at intervals in the circumferential direction; a generator room 3, wherein the generator room 3 is arranged at the bottom of the tower 1; and the hub 2 is in transmission connection with the generator room 3 through the transmission assembly 4.
It can be understood that the weight of the upper end of the tower 1 is reduced by disposing the generator room 3 at the bottom of the tower 1, and the structural strength of the tower 1 can be reduced to reduce the weight of the tower 1, thereby reducing the difficulty of transportation of the tower 1, and at the same time, the installation, maintenance and overhaul of the generator room 3 are facilitated by installing the generator room 3 at the bottom of the tower 1.
It should be noted that, after capturing wind energy, the plurality of impellers 21 drive the hub 2 to rotate, so as to convert the wind energy into mechanical energy, the hub 2 transmits the mechanical energy to the generator room 3 through the transmission assembly 4, and the generator room 3 converts the mechanical energy into electric energy, so that the generator room 3 generates electricity.
In some embodiments of the invention, as shown in fig. 1, the tower 1 is arranged inclined towards the windward side. It can be understood that the wind direction is a first direction F1, the opposite direction to the first direction F1 is a second direction F2, the second direction F2 is a windward side, and the center of gravity of the tower 1 is shifted towards the second direction F2 by obliquely arranging the tower 1 towards the second direction F2, so that an included angle a is formed between the axis of the tower 1 in the length direction and the vertical direction, and the bending moment M1 generated by the wind force received by the tower 1 and the bending moment M2 generated by the self gravity are opposite in direction, so that the bending moment received by a part of the tower 1 can be offset, and the load of the tower 1 can be reduced.
Meanwhile, the tower 1 is inclined towards the second direction F2, so that the distance D between the blade tip of the impeller 21 and the tower 1 is increased, and the problem of collision between the blade tip of the impeller 21 and the tower 1 is avoided. Further, since there is no concern about the collision of the blade tip with the tower 1, and the axis of the hub does not need to be tilted upward (i.e., the hub is raised on the impeller side), in some embodiments of the present invention, the axis of the hub 2 is parallel to the wind direction, thereby increasing the swept area of the impeller 21 for capturing wind energy, and further increasing the wind energy capturing efficiency.
It should be noted that, as shown in fig. 3, when the axis of the hub 2 is parallel to the wind direction, the swept area of the impeller 21 is R1, and as shown in fig. 4, when the axis of the hub 2 forms an angle with the wind direction, the swept area of the impeller 21 is R2, and further R1 is greater than R2, and thus it is understood that the larger the angle between the axis of the hub 2 and the wind direction is, the smaller the swept area of the impeller 21 is.
The tower of the invention has the advantages of inclined placement: 1. the distance D between the blade tip and the tower is increased, so that the blade tip is prevented from colliding with the tower after being deformed under the action of wind power; 2. the tower inclines to lead the gravity center to move forward, the bending moment generated by gravity is opposite to the bending moment generated by wind power, namely, the gravity can offset the load under the action of partial wind power, and the size of the tower can be reduced; 3. the inclination angle of the axis of the wind wheel can be reduced, the swept area of the impeller is increased, and the wind energy capture efficiency is improved.
Meanwhile, in order to fully utilize the rigidity of the tower and reduce the use of materials as much as possible, the cross section of the tower 1 is non-circular, and the plane of the maximum bending rigidity of the tower 1 is superposed with the plane of the maximum bending moment applied to the tower 1. When a circular cross section is adopted, the bending rigidity of the vertical periphery of the tower frame 1 is relatively uniform, and the first direction and the second direction are main stress surfaces, so that the design of uniform bending strength is adopted in the circumferential direction, and material waste is caused; if a non-circular cross section is adopted, the bending strength of the surfaces in the first direction and the second direction is designed to be higher, and the bending strength of other surfaces is properly reduced, so that the use of materials can be reduced, the cost is saved, and the self weight is reduced. Such as: the cross section of the tower frame 1 is rectangular, the bending strength of the surface corresponding to the first direction and the second direction is higher, the bending strength of the other two surfaces is lower, compared with the bending moments of the first direction and the second direction, the bending strength of the surface corresponding to the direction is consistent, namely, the bending moment is large, the designed bending strength is also large, the bending moment is small, the designed bending strength is also small, and the material design strength and the use amount are reduced on the premise of meeting the requirements.
As shown in fig. 1 and 5, in some embodiments of the present invention, a base 5 is further included, and the generator housing 3 is rotatably coupled to the base 5. It will be appreciated that, because the wind direction is random, when the wind direction changes, by rotating the generator nacelle 3 and thus the tower 1, the impeller 21 can be aligned with the wind direction so that the impeller 21 can obtain the maximum wind energy.
In some embodiments, the yawing system may also be mounted at the bottom of the tower 1, thereby facilitating installation, maintenance and servicing of the yawing system. Wherein the yaw system functions to align the wind direction quickly and smoothly when the direction of the wind speed vector is changed so that the impeller 21 obtains the maximum wind energy.
In some embodiments, the yaw system includes a detecting element, which may be a sensor or a wind direction/anemometer, and a control system, wherein the detecting element may be disposed on the generator nacelle 3, and since the wind direction is random, the detecting element detects the flowing direction of the airflow and transmits the detection result to the control system, and the control system receives the detection result and controls the tower 1 to rotate, so that the impeller 21 obtains the maximum wind energy.
In some embodiments of the present invention, a rotating platform 6 is rotatably connected to the base 5, and the generator housing 3 is disposed on the rotating platform 6. It will be appreciated that by locating nacelle 3 on a rotating platform 6, rotating platform 6 on base 5 is driven, and rotating platform 6 rotates to rotate tower 1 and nacelle 3, so that rotation of tower 1 and nacelle 3 is more reliable.
In another scheme, the bottom of the tower frame 1 is fixedly connected with the rotary platform 6, and the generator room 3 is sleeved at the bottom of the tower frame 1 and is fixedly connected with the rotary platform 6. Namely, the tower 1 is directly connected with the rotary platform 6 through the generator room 3, and the generator room 3 can also have a certain supporting function on the side edge of the tower 1.
In some embodiments of the invention, the rotating platform 6 and the base 5 are connected by a gear drive. Thereby, the drive fit between the turntable 6 and the base 5 is made more reliable. In some embodiments, the transmission structure between the rotating platform 6 and the base 5 may also adopt a worm and gear transmission, a belt transmission or other transmission forms as long as the rotating platform 6 can realize high-torque low-speed rotation, and the transmission structure form is not limited herein.
In some embodiments of the present invention, a mating gear ring 51 disposed around the rotation axis of the rotary platform 6 is disposed on the base 5, a driving motor 61 is disposed on the rotary platform 6, a driving gear 611 is disposed on the driving motor 61, and the driving gear 611 is engaged with the mating gear ring 51.
It can be understood that the driving gear 611 is mounted on the motor shaft of the driving motor 61, and by controlling the forward rotation and the reverse rotation of the driving motor 61, the driving gear 611 is controlled to rotate, and since the driving gear 611 is meshed with the mating gear ring 51, the rotating platform 6 can be driven to rotate relative to the base 5 when the driving gear 611 rotates, so that the rotation of the tower 1 and the generator cabin 3 is more reliable.
In some embodiments, there may be a plurality of driving motors 61, and the plurality of driving motors 61 are arranged at intervals along the circumferential direction of the rotating platform 6, so as to ensure the stability of the rotation of the rotating platform 6, in this embodiment, there are two driving motors 61.
As shown in fig. 2, in some embodiments of the present invention, the transmission assembly 4 includes a transmission shaft 41 rotatably disposed in the tower 1, the output shaft 22 of the hub 2 is in transmission connection with an upper end of the transmission shaft 41, and the input shaft 31 of the generator compartment 3 is in transmission connection with a lower end of the transmission shaft 41. It can be understood that, by arranging the transmission shaft 41 in the tower 1, the purpose of protecting the transmission shaft 41 can be achieved, and the stability of kinetic energy transmission can be ensured.
As shown in fig. 2, in some embodiments of the present invention, the transmission assembly 4 further includes a first transmission member 42 and a second transmission member 43, the first transmission member 42 is disposed in the support base 11, and the second transmission member 43 is disposed at the bottom of the tower 1; the first transmission member 42 includes a first bevel gear and a second bevel gear engaged with the first bevel gear, the first bevel gear is disposed on the output shaft 22, and the second bevel gear is connected to the upper end of the transmission shaft 41; the second transmission member 43 includes a third bevel gear disposed on the input shaft 31 and a fourth bevel gear engaged with the third bevel gear, and the fourth bevel gear is connected to the lower end of the transmission shaft 41. Thereby, the transfer of kinetic energy is made simpler and more reliable.
The invention further provides a wind generating set which comprises the horizontal shaft wind turbine with the obliquely arranged tower.
According to the wind generating set provided by the embodiment of the invention, the generator room 3 is arranged at the bottom of the tower frame 1, so that the weight of the upper end of the tower frame 1 is reduced, the structural strength of the tower frame 1 can be further reduced, the weight of the tower frame 1 is reduced, and the transportation difficulty of the tower frame 1 is reduced, and meanwhile, the generator room 3 is arranged at the bottom of the tower frame 1, so that the installation, maintenance and overhaul of the generator room 3 are facilitated.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A horizontal axis wind turbine with a tower placed obliquely is characterized by comprising:
the tower comprises a tower frame (1), wherein a supporting seat (11) is arranged at the upper end of the tower frame (1);
the wheel hub (2) is rotatably connected to the supporting seat (11), and a plurality of impellers (21) are arranged on the wheel hub (2) at intervals in the circumferential direction;
a generator compartment (3), the generator compartment (3) being arranged at the bottom of the tower (1);
the hub (2) is in transmission connection with the generator cabin (3) through the transmission component (4).
2. A tower tilt placed horizontal axis wind turbine according to claim 1, wherein the tower (1) is tilted towards the windward side.
3. A tower tilt placed horizontal axis wind turbine according to claim 2, wherein the axis of the hub (2) is parallel to the wind direction.
4. A tower tilt positioned horizontal axis wind turbine according to claim 1, wherein the tower (1) is non-circular in cross-section and the plane of maximum bending stiffness of the tower (1) coincides with the plane of maximum bending moment exerted on the tower (1).
5. A tower tilt positioned horizontal axis wind turbine according to claim 1, further comprising a foundation (5), wherein said generator nacelle (3) is rotatably connected to said foundation (5).
6. The wind turbine with the tower placed obliquely and the horizontal shaft as claimed in claim 5, wherein a revolving platform (6) is rotatably connected to the base (5), and the generator room (3) is arranged on the revolving platform (6).
7. The wind turbine with the horizontal shaft and the obliquely arranged tower frame as claimed in claim 6, wherein the rotating platform (6) is connected with the base (5) through gear transmission, a matching gear ring (51) arranged around the rotating axis of the rotating platform (6) is arranged on the base (5), a driving motor (61) is arranged on the rotating platform (6), a driving gear (611) is arranged on the driving motor (61), and the driving gear (611) is meshed with the matching gear ring (51).
8. The wind turbine with the tower placed obliquely and the horizontal shaft as claimed in claim 1, wherein the transmission assembly (4) comprises a transmission shaft (41) rotatably arranged in the tower (1), the output shaft (22) of the hub (2) is in transmission connection with the upper end of the transmission shaft (41), and the input shaft (31) of the generator cabin (3) is in transmission connection with the lower end of the transmission shaft (41).
9. A tower tilt-placed horizontal axis wind turbine according to claim 8, wherein the transmission assembly (4) further comprises a first transmission member (42) and a second transmission member (43), the first transmission member (42) is arranged in the support base (11), the second transmission member (43) is arranged at the bottom of the tower (1);
the first transmission piece (42) comprises a first bevel gear and a second bevel gear meshed with the first bevel gear, the first bevel gear is arranged on the output shaft (22), and the second bevel gear is connected with the upper end of the transmission shaft (41);
the second transmission piece (43) comprises a third bevel gear and a fourth bevel gear meshed with the third bevel gear, the third bevel gear is arranged on the input shaft (31), and the fourth bevel gear is connected with the lower end of the transmission shaft (41).
10. A wind turbine generator system comprising a horizontal axis wind turbine with an inclined tower according to any one of claims 1 to 9.
CN202110426476.1A 2021-04-20 2021-04-20 Horizontal shaft wind turbine with obliquely-arranged tower and wind generating set Pending CN112922789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110426476.1A CN112922789A (en) 2021-04-20 2021-04-20 Horizontal shaft wind turbine with obliquely-arranged tower and wind generating set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110426476.1A CN112922789A (en) 2021-04-20 2021-04-20 Horizontal shaft wind turbine with obliquely-arranged tower and wind generating set

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CN112922789A true CN112922789A (en) 2021-06-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4116580A1 (en) * 2021-07-05 2023-01-11 NingBo Advanced Information Services Co., Ltd. Wind generator and wind generator group

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4116580A1 (en) * 2021-07-05 2023-01-11 NingBo Advanced Information Services Co., Ltd. Wind generator and wind generator group

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