Yaw correction device for wind turbine generator
By designing a yaw correction device for wind turbines that supports the base column and is driven by a motor, the blade angle is automatically adjusted to adapt to the wind direction, solving the problems of reduced power generation and increased load on the yaw device, and achieving efficient and stable wind power generation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING WEIXITONG TECHNICAL SERVICE CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-10
AI Technical Summary
Existing wind turbine yaw correction devices cannot effectively fix the nacelle direction after correction, resulting in reduced power generation and increased workload of the yaw device. Furthermore, sensor errors lead to inaccurate wind alignment, affecting power generation efficiency.
Design a wind turbine yaw correction device that includes a support column, a yaw adjustment component, a yaw detection component, and a motor drive. The support column supports the turbine casing, and the motor and sensors automatically adjust the blade angle to adapt to changes in wind direction, achieving automatic locking.
It improves wind power generation efficiency and rotational stability, ensures that the blades are always facing the wind, reduces self-rotation, and increases the unit's power generation and equipment lifespan.
Smart Images
Figure CN224107369U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a wind turbine yaw correction device and belongs to the technical field of wind power generation. BACKGROUND
[0002] The wind turbine yawing does not accurately point to the wind, which has a significant impact on the power generation of the unit and directly affects the economic benefits of the wind farm.
[0003] The yawing system is a key component of the wind turbine, and whether it can keep the wind wheel in the wind direction directly determines the power generation efficiency of the unit. SUMMARY
[0004] In view of the deficiencies in the prior art, the utility model aims to provide a wind turbine yaw correction device.
[0005] To achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme:
[0006] A wind turbine yaw correction device comprises a support base column, a unit yaw adjustment assembly is installed at the top of the support base column, a unit outer shell body is rotatably connected to the unit yaw adjustment assembly, a generator set is installed in the unit outer shell body, a blade mounting rack extending to the outside of the unit outer shell body is connected to one end of the generator set, three groups of wind power blades are installed on the blade mounting rack, and a yaw detection assembly extending into the unit outer shell body is installed at the top of the unit outer shell body.
[0007] Further, the unit yaw adjusting assembly comprises an outer protective shell fixed at the top end of the support column, a main rotating gear is arranged in the outer protective shell, a rotating shaft is connected to the bottom center of the main rotating gear, a bearing one is installed at the bottom end of the rotating shaft, a driving gear is engaged with one side of the main rotating gear, a motor is connected to the bottom of the driving gear, a support column is fixedly installed on the main rotating gear and penetrates through the top of the outer protective shell, an installation disc is integrally connected to the top end of the support column, and the installation disc is fixed to the bottom of the unit outer shell body through four installation bolts.
[0008] Further, a support bottom plate is fixedly installed on the other side of the main rotating gear in the outer protective shell, a contact limiting plate is slidingly installed on the support bottom plate, an arc surface is arranged on the contact limiting plate, an electric telescopic rod is connected between the contact limiting plate and the outer protective shell, a strip-shaped groove is installed at the center of the support bottom plate, and a sliding block integrally connected to the bottom of the contact limiting plate is slidingly arranged in the strip-shaped groove.
[0009] Further, the generator set comprises a bearing frame fixed in the unit outer shell body, a bearing two is embeddedly installed at the center of the bearing frame, a connecting shaft penetrating through the inner ring of the bearing two is connected to the blade mounting frame, the other end of the connecting shaft is connected to the gear box, and the other end of the gear box is connected to the generator through a driving shaft.
[0010] Further, the yaw detection assembly comprises a power supply controller installed at the top of the unit outer shell body, the power supply controller is connected to the motor and the electric telescopic rod in control, an angle sensor is installed on the power supply controller, an arc-shaped groove is arranged in the angle sensor, and sensing area contacts are arranged at the two ends of the arc-shaped groove, and no sensing area is arranged between the sensing area contacts.
[0011] Further, a wind vane is arranged on the unit outer shell body, a rotating column extending into the unit outer shell body is connected to the bottom center of the wind vane, the connecting part between the rotating column and the unit outer shell body is connected through a bearing three, and a swing rod extending into the arc-shaped groove is connected to the bottom end of the rotating column.
[0012] The utility model discloses the beneficial effects of:
[0013] The unit yaw adjusting assembly is installed at the top of the support column, the support column supports the unit yaw adjusting assembly, the unit yaw adjusting assembly can drive the unit outer shell body to rotate, so that the blade mounting frame connected to the unit outer shell body and the wind power generation blade are deflected, the current wind direction can be detected by the yaw detection assembly, and the unit yaw adjusting assembly is controlled to adjust the unit outer shell body according to the wind direction. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings described in the following embodiments are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0015] Figure 1 It is a structural schematic view of the yaw correction device for the wind turbine generator set of the present application.
[0016] Figure 2 It is a structural schematic view of the yaw adjustment assembly of the yaw correction device for the wind turbine generator set of the present application.
[0017] Figure 3 It is a structural schematic view of the generator set in the yaw correction device for the wind turbine generator set of the present application.
[0018] Figure 4 It is a structural schematic view of the yaw detection assembly in the yaw correction device for the wind turbine generator set of the present application.
[0019] In the drawings, 1 is a support base column; 2 is a generator set yaw adjustment assembly; 3 is a generator set outer shell; 4 is a blade mounting rack; 5 is a wind power generation blade; 6 is a yaw detection assembly; 7 is an outer protective shell; 8 is a main rotating gear; 9 is a rotating shaft; 10 is a driving gear; 11 is a motor; 12 is a support column; 13 is a mounting disc; 14 is a mounting bolt; 15 is a support bottom plate; 16 is a contact limiting plate; 17 is an electric telescopic rod; 18 is a strip-shaped groove; 19 is a bearing rack; 20 is a connecting shaft; 21 is a connecting gear box; 22 is a driving shaft; 23 is a generator; 24 is a power supply controller; 25 is an angle sensor; 26 is an induction area contact; 27 is a wind vane; 28 is a rotating stand; 29 is a bearing three; 30 is a swing rod. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0021] Please refer to Figures 1-4The utility model provides a kind of wind turbine yaw correction device, including support column 1, support column 1 top is equipped with unit yaw adjustment assembly 2, unit yaw adjustment assembly 2 is rotatably connected with unit outer shell 3, generator set is installed in unit outer shell 3, one end of generator set is connected with blade mounting rack 4 extending to the outside of unit outer shell 3, three groups of wind power blades 5 are installed on blade mounting rack 4, by installing unit yaw adjustment assembly 2 on the top of support column 1, it is supported using support column 1, unit yaw adjustment assembly 2 can drive unit outer shell 3 to rotate, so that blade mounting rack 4 and wind power blades 5 connected with unit outer shell 3 are deflected, so as to adjust according to wind direction, the top of unit outer shell 3 is equipped with yaw detection assembly 6 extending into it, the current wind direction can be detected by the yaw detection assembly 6, and unit yaw adjustment assembly 2 is controlled, so that it adjusts unit outer shell 3 according to wind direction.
[0022] Refer to Figure 2 Unit yaw adjustment assembly 2 includes outer protective shell 7 fixed at the top of support column 1, main rotating gear 8 is equipped in outer protective shell 7, rotating shaft 9 is connected at the bottom center of main rotating gear 8, bearing one is installed at the bottom end of rotating shaft 9, driving gear 10 is engaged on one side of main rotating gear 8, motor 11 is connected at the bottom of driving gear 10, support column 12 is fixedly installed on main rotating gear 8 and penetrates the top of outer protective shell 7, mounting disc 13 is integrally connected at the top of support column 12, and mounting disc 13 is fixed at the bottom of unit outer shell 3 by four groups of mounting bolts 14, support bottom plate 15 is fixedly installed in the other side of main rotating gear 8 in outer protective shell 7, abutting stop plate 16 is slidably installed on support bottom plate 15, arc surface is equipped on abutting stop plate 16, electric telescopic rod 17 is connected between abutting stop plate 16 and outer protective shell 7, strip slot 18 is installed at the center of support bottom plate 15, the bottom of abutting stop plate 16 is integrally connected with sliding block that is slidably arranged in strip slot 18. Rotating driving gear 10 is driven by the motor 11 set, so that the main rotating gear 8 engaged with it rotates, to drive support column 12 and mounting disc 13 to rotate, realize the rotation of unit outer shell 3, abutting stop plate 16 is slid on support bottom plate 15 by electric telescopic rod 17, when adjusting in place, then abutting stop plate 16 is used to limit main rotating gear 8, to avoid its rotation.
[0023] Refer to Figure 3The generator set comprises a bearing frame 19 fixed in the unit shell 3, a bearing II is embeddedly installed at the center of the bearing frame 19, a connecting shaft 20 is connected through the inner ring of the bearing II on the blade mounting frame 4, the other end of the connecting shaft 20 is connected with a gear box 21, the other end of the gear box 21 is connected with a generator 23 through a driving shaft 22. The generator 23 is rotated by the wind power blade 5, the connecting shaft 20 is rotated by the gear box 21 and the driving shaft 22, and the generator 23 is rotated to realize the power generation work.
[0024] Referring to Figure 4 The yaw detection assembly 6 comprises a power controller 24 installed on the top of the unit shell 3, and the power controller 24 is connected with the motor 11 and the electric telescopic rod 17 respectively, an angle sensor 25 is installed on the power controller 24, an arc-shaped groove is arranged in the angle sensor 25, and sensing area contacts 26 are arranged at the two ends of the arc-shaped groove, and there is no sensing area between the sensing area contacts 26. A wind vane 27 is arranged on the unit shell 3, a rotating column 28 extending into the unit shell 3 is connected to the bottom center of the wind vane 27, the connecting part between the rotating column 28 and the unit shell 3 is connected through a bearing III 29, and a swing rod 30 extending into the arc-shaped groove is connected to the bottom end of the rotating column 28. The wind direction is detected by the wind vane 27, the swing rod 30 is swung by the rotating column 28, when the swing rod 30 swings into the sensing area contacts 26 in the angle sensor 25, the swing rod 30 is shielded by the angle sensor 25 which is an infrared sensor, the power controller 24 sends a signal to control the electric telescopic rod 17 and the motor 11 (the electric telescopic rod 17 is first retracted, and the motor 11 is started), and the direction of the motor 11 driving rotation is rotated according to the sensing area contacts 26 on different sides, so that the unit shell 3 gradually becomes parallel to the wind vane 27, when the unit shell 3 is parallel to the wind vane 27, the swing rod 30 is in the non-sensing area, then the motor 11 is closed, and the electric telescopic rod 17 is extended, so as to limit the yaw adjustment assembly 2.
[0025] In use, the yaw adjustment assembly 2 is installed on the top of the support column 1, and the support column 1 supports the yaw adjustment assembly 2, the yaw adjustment assembly 2 can drive the unit shell 3 to rotate, so that the blade mounting frame 4 and the wind power blade 5 connected with the unit shell 3 are deflected, so as to adjust according to the wind direction, the yaw detection assembly 6 can detect the current wind direction, and control the yaw adjustment assembly 2 to adjust the unit shell 3 according to the wind direction. The utility model has the advantages of simple structure, convenient use, automatic adjustment of the angle of the generator set blade according to the change of the wind direction, greatly improved efficiency of wind power generation, improved stability of rotation, automatic locking after rotation, and avoidance of self-rotation.
[0026] Although the present specification is described in terms of embodiments, not every embodiment exhibits every characteristic or implements every combination of features described in the present specification. In addition, not every embodiment includes every embodiment described in the present specification. The description herein of any embodiment, including any preferred embodiment, is thus intended to be illustrative, and not restrictive. The scope of the present application is thus intended to be broad, and will be set forth in the following claims.
Claims
1. A wind turbine generator yaw correction device, characterized by, The utility model provides a wind turbine yawing adjustment device, which comprises a support column (1), a unit yawing adjustment assembly (2) is mounted on the top of the support column (1), a unit outer shell (3) is rotatably connected to the unit yawing adjustment assembly (2), a generator set is mounted in the unit outer shell (3), one end of the generator set is connected to a blade mounting rack (4) extending out of the unit outer shell (3), three groups of wind power generation blades (5) are mounted on the blade mounting rack (4), and a yawing detection assembly (6) extending into the unit outer shell (3) is mounted on the top of the unit outer shell (3).
2. A yaw correction device for a wind turbine according to claim 1, characterized in that The unit yawing adjustment assembly (2) comprises an outer protective shell (7) fixed to the top end of the support column (1), a main rotating gear (8) is arranged in the outer protective shell (7), a rotating shaft (9) is connected to the bottom center of the main rotating gear (8), a bearing one is mounted at the bottom end of the rotating shaft (9), a driving gear (10) is engaged with one side of the main rotating gear (8), a motor (11) is connected to the bottom of the driving gear (10), a support column (12) extending through the top of the outer protective shell (7) is fixedly mounted on the main rotating gear (8), an installation disc (13) is integrally connected to the top end of the support column (12), and the installation disc (13) is fixed to the bottom of the unit outer shell (3) through four installation bolts (14).
3. A yaw correction device for a wind turbine according to claim 2, characterised in that A support bottom plate (15) is fixedly mounted on the other side of the main rotating gear (8) in the outer protective shell (7), a contact limiting plate (16) is slidably mounted on the support bottom plate (15), an arc surface is arranged on the contact limiting plate (16), an electric telescopic rod (17) is connected between the contact limiting plate (16) and the outer protective shell (7), a strip-shaped groove (18) is mounted at the center of the support bottom plate (15), and a sliding block integrally connected to the bottom of the contact limiting plate (16) is slidably arranged in the strip-shaped groove (18).
4. A yaw correction device for a wind turbine according to claim 3, characterised in that The generator set comprises a bearing bracket (19) fixed in the unit outer shell (3), a bearing two is embeddedly mounted at the center of the bearing bracket (19), a connecting shaft (20) penetrating the inner ring of the bearing two is connected to the blade mounting rack (4), the other end of the connecting shaft (20) is connected to a gear box (21), and the other end of the gear box (21) is connected to a generator (23) through a driving shaft (22).
5. A yaw correction device for a wind turbine according to claim 4, characterised in that, The yawing detection assembly (6) comprises a power controller (24) mounted on the top of the unit outer shell (3), the power controller (24) is in control connection with the motor (11) and the electric telescopic rod (17), respectively, an angle sensor (25) is mounted on the power controller (24), an arc-shaped groove is arranged in the angle sensor (25), and sensing area contacts (26) are arranged at the two ends of the arc-shaped groove, and there is no sensing area between the sensing area contacts (26).
6. A yaw correction device for a wind turbine according to claim 5, characterised in that, A wind vane (27) is arranged on the unit outer shell (3), a rotating stand (28) extending into the unit outer shell (3) is connected to the bottom center of the wind vane (27), the connecting part of the rotating stand (28) and the unit outer shell (3) is connected through a bearing three (29), and a swing rod (30) extending into the arc-shaped groove is connected to the bottom end of the rotating stand (28).