1. A wind power generation simulation experiment device is characterized by comprising:

a frame (10);

a turntable (20) arranged on the gantry (10) for controlled rotation about a first axis of rotation;

the plurality of blades (30) are arranged on the rotary table (20) and are arranged at intervals around the first rotating axis, each blade (30) is provided with a mounting position for mounting a wind power generation complete facility, and each blade (30) is rotatable around a second rotating axis relative to the rotary table (20), and the second rotating axis intersects with the first rotating axis.

2. The wind power generation simulation experiment device according to claim 1, further comprising a variable pitch mechanism (40), wherein the variable pitch mechanism (40) comprises a power source (41) and a transmission assembly (42), the power source (41) is mounted on the turntable (20), and the transmission assembly (42) is in transmission connection between the power source (41) and the plurality of blades (30).

3. The wind power generation simulation experiment device according to claim 2, wherein the transmission assembly (42) comprises a driving bevel gear (43) and a plurality of driven bevel gears (44), the driving bevel gear (43) is mounted at the driving end of the power source (41), the plurality of driven bevel gears (44) correspond to the plurality of blades (30) one by one, and each driven bevel gear (44) is mounted at a corresponding one of the blades (30) and is meshed with the driving bevel gear (43).

4. The wind power generation simulation experiment device according to claim 1, further comprising a plurality of pitch mechanisms (40) arranged on the turntable (20), wherein the plurality of pitch mechanisms (40) correspond to the plurality of blades (30) one by one, and each pitch mechanism (40) is in transmission connection with a corresponding one of the blades (30).

5. The wind power generation simulation experiment apparatus according to claim 1, wherein the wind power generation simulation experiment apparatus further comprises a plurality of positioning mechanisms (50) connected to the plurality of blades (30) in a one-to-one correspondence, and each positioning mechanism (50) is controllably connected to or disconnected from the turntable (20).

6. The wind power generation simulation experiment device according to claim 5, wherein each positioning mechanism (50) comprises a clamping block (52) and a positioning piece (51), the clamping block (52) is connected to the corresponding blade (30) and is provided with a positioning hole (53), and the turntable (20) is provided with a plurality of fixing holes (54);

in the process that the paddle (30) drives the corresponding clamping block (52) to rotate, the positioning holes (53) can sequentially correspond to the fixing holes (54), and the positioning piece (51) penetrates through the positioning holes (53) and the fixing holes (54) corresponding to the positioning holes (53).

7. The wind power generation simulation experiment device according to claim 5, wherein each positioning mechanism (50) comprises a clamping block (52) and a positioning member (51), the clamping block (52) is connected to the corresponding blade (30) and has a plurality of positioning holes (53), the rotating disc (20) has a plurality of fixing holes (54) corresponding to the positioning holes (53) one by one, and each corresponding one of the positioning holes (53) and one of the fixing holes (54) form a group of holes;

the positioning mechanism (50) comprises a plurality of positioning positions in the process of rotating along with the paddle (30), and each positioning position corresponds to one group of hole position groups; when the positioning mechanism (50) rotates to one positioning position, one positioning hole (53) and one fixing hole (54) of the corresponding hole group are aligned, and the positioning piece (51) penetrates through the aligned fixing hole (54) and positioning hole (53).

8. The wind power generation simulation experiment device according to claim 7, wherein the positioning mechanism (50) further comprises a pressing plate (55) detachably connected with the clamping block (52), and when the positioning member (51) is inserted into the positioning hole (53), the pressing plate (55) is covered on the positioning hole (53).

9. The wind power generation simulation experiment device according to claim 1, wherein the wind power generation simulation experiment device comprises a driving shaft (11) which can be controlled to rotate around its axis, the driving shaft (11) is connected with the rotating disc (20) and drives the rotating disc (20) to rotate around the first rotation axis, and an electric slip ring (12) which is electrically connected with the wind power generation supporting facility is sleeved on the driving shaft (11).

10. The wind power generation simulation experiment device according to claim 9, wherein a speed measuring encoder (13) is further sleeved on the driving shaft (11).

Background

In the field of wind power, a pitch system of a wind power blade is one of core components in a control system of a large-scale wind generating set. The pitch angle of the wind power blades is adjusted by the pitch control system, so that the attack angle of airflow to the wind power blades is changed, and further the pneumatic torque and the pneumatic power captured by the whole wind driven generator are controlled. Therefore, the operation stability of the variable pitch system plays an important role in safe, stable and efficient operation of the whole wind turbine generator system. Therefore, various wind power generation supporting facilities are arranged for the variable pitch system, such as active safety variable pitch equipment for judging whether variable pitch is needed or not, so that stable operation of the variable pitch system is ensured.

In the prior art, the wind power generation supporting facilities in the wind power generation set are not provided with a test operation platform for simulating an application environment after the design is completed, and the wind power generation supporting facilities are often required to be hung on an actual wind power generation set for on-hook test operation, so that the test cost is high, the test time is long, and the development period of the wind power generation supporting facilities is prolonged.

Disclosure of Invention

Therefore, it is necessary to provide a wind power generation simulation experiment apparatus for overcoming the above-mentioned drawbacks, in order to solve the problem in the prior art that the wind power generation supporting facility needs to be mounted on the actual wind power generator set for the on-hook test.

A wind power generation simulation experiment device comprises:

a frame;

a turntable arranged on the frame for controlled rotation about a first axis of rotation;

the blades are arranged on the rotating disc and are distributed at intervals around the first rotating axis, each blade is provided with a mounting position for mounting a wind power generation supporting facility, each blade can rotate around a second rotating axis relative to the rotating disc, and the second rotating axis intersects with the first rotating axis.

In one embodiment, the wind power generation simulation experiment device further comprises a variable pitch mechanism, the variable pitch mechanism comprises a power source and a transmission assembly, the power source is installed on the turntable, and the transmission assembly is in transmission connection between the power source and the blades.

In one embodiment, the transmission assembly includes a driving bevel gear and a plurality of driven bevel gears, the driving bevel gear is mounted at the driving end of the power source, the plurality of driven bevel gears correspond to the plurality of blades one to one, and each driven bevel gear is mounted at a corresponding one of the blades and meshed with the driving bevel gear.

In one embodiment, the wind power generation simulation experiment device further comprises a plurality of variable pitch mechanisms arranged on the turntable, the variable pitch mechanisms correspond to the blades one by one, and each variable pitch mechanism is in transmission connection with one corresponding blade.

In one embodiment, the wind power generation simulation experiment device further comprises a plurality of positioning mechanisms connected with the plurality of blades in a one-to-one correspondence manner, and each positioning mechanism can be connected with or separated from the turntable in a controlled manner.

In one embodiment, each positioning mechanism comprises a clamping block and a positioning piece, the clamping block is connected to the corresponding paddle and provided with a positioning hole, and the turntable is provided with a plurality of fixing holes;

the paddle drives the corresponding clamping block to rotate, the positioning holes can sequentially correspond to the fixing holes, and the positioning piece penetrates through the positioning holes and one of the fixing holes corresponding to the positioning holes.

In one embodiment, each positioning mechanism comprises a clamping block and a positioning piece, the clamping block is connected to the corresponding blade and provided with a plurality of positioning holes, the turntable is provided with a plurality of fixing holes corresponding to the positioning holes one by one, and each corresponding positioning hole and one fixing hole form a hole group;

the positioning mechanism comprises a plurality of positioning positions in the process of rotating along with the blades, and each positioning position corresponds to one group of hole position groups; when the positioning mechanism rotates to one positioning position, one positioning hole of the corresponding hole group is aligned with one fixing hole, and the positioning piece penetrates through the aligned fixing hole and the positioning hole.

In one embodiment, the positioning mechanism further includes a pressing plate detachably connected to the clamping block, and when the positioning element is inserted into the positioning hole, the pressing plate is covered on the positioning hole.

In one embodiment, the wind power generation simulation experiment device comprises a driving shaft which can be controlled to rotate around the axis of the driving shaft, the driving shaft is connected with the rotating disc and drives the rotating disc to rotate around the first rotating axis, and an electric slip ring which is electrically connected with the wind power generation supporting facility is sleeved on the driving shaft.

In one embodiment, a speed measuring encoder is further sleeved on the driving shaft.

According to the wind power generation simulation experiment device, the turntable drives the blades to rotate around the first axis for simulating the running condition of the wind generating set, and the rotation of the blades around the second rotation axis can adjust the angle of the blades for simulating the variable pitch process of the wind generating set. Through the simulation experiment device, the wind power generation supporting facilities of the wind generating set can be tested without hanging up, and the debugging time and cost of the wind generating set are greatly reduced.

Drawings

FIG. 1 is a schematic structural diagram of a simulation experiment apparatus for wind power generation according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the wind power generation simulation experiment apparatus of FIG. 1 at another view angle;

FIG. 3 is a schematic structural view of the turntable in FIG. 1;

FIG. 4 is a schematic cross-sectional view of the turntable of FIG. 3;

FIG. 5 is a schematic structural diagram of a simulation experiment apparatus for wind power generation according to another embodiment of the present invention;

FIG. 6 is a schematic structural view of the turntable in FIG. 5;

FIG. 7 is a schematic cross-sectional view of the turntable of FIG. 6;

fig. 8 is a schematic structural view of the clamping block in fig. 5.

A frame 10; a drive shaft 11; an electrical slip ring 12; a speed measurement encoder 13;

a turntable 20;

a paddle 30;

a pitch mechanism 40; a power source 41; a drive assembly 42; a drive bevel gear 43; a driven bevel gear 44;

a positioning mechanism 50; a positioning member 51; a clamping block 52; positioning holes 53; a fixing hole 54; and a pressure plate 55.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, an embodiment of the present invention provides a wind power generation simulation experiment apparatus, including: a frame 10, a turntable 20, and a plurality of paddles 30.

The frame 10 is adapted to carry a turntable 20, and the turntable 20 is controllably rotatably arranged on the frame 10 about a first rotation axis. The plurality of blades 30 are arranged on the turntable 20 and are distributed at intervals around the first rotation axis of the turntable 20, and each blade 30 is provided with an installation position for installing a wind power generation supporting facility, so that the turntable 20 can drive the blades 30 to rotate around the first axis, and the running condition of the wind power generator set can be simulated. Further, each blade 30 is rotatable relative to the turntable 20 about a second axis of rotation intersecting the first axis of rotation, such that the angle of the blade 30 can be adjusted by rotation of the blade 30 about the second axis of rotation, thereby simulating the pitching process of the wind park.

In the actual use process, the blades 30 are provided with wind power generation supporting facilities of a wind power generator set. The rotating disc 20 drives each blade 30 to rotate around the first axis to simulate the operation condition of the wind generating set, so that the blades 30 can bear external resistance from air flow when the rotating disc 20 rotates, the working condition of wind power generation supporting facilities on the blades 30 is simulated, and the working condition of the wind power generation supporting facilities is further tested. Furthermore, in order to detect the working conditions of the wind power generation supporting facility in different wind directions, the angle of the blade 30 is adjusted by rotating the blade 30, so that the wind power generation supporting facility can be subjected to airflow resistance in different directions, and the actual working state of the wind power generation supporting facility is further simulated.

According to the wind power generation simulation experiment device, the turntable 20 drives the blades 30 to rotate around the first axis for simulating the running condition of the wind generating set, and the rotation of the blades 30 around the second rotation axis can adjust the angle of the blades 30 for simulating the pitch changing process of the wind generating set. Through the simulation experiment device, the wind power generation supporting facilities of the wind generating set can be tested without hanging up, and the debugging time and cost of the wind generating set are greatly reduced.

It should be noted that the second rotation axis does not refer to a rotation axis in a certain direction, each blade 30 has a second rotation axis in a predetermined direction, and the plurality of blades 30 have second rotation axes in multiple directions. For example, referring to FIG. 1, the rotational axes about which any of the three blades 30 of FIG. 1 rotate are all second rotational axes, and as such, the rotational axes of all three blades 30 are all second rotational axes.

In the embodiment of the invention, the pitch variation process of the wind generating set in the actual use process is simulated more conveniently. Referring to fig. 2 to 4, the wind power generation simulation experiment apparatus further includes a variable pitch mechanism 40 disposed on the turntable 20, the variable pitch mechanism 40 includes a power source 41 and a transmission assembly 42 in transmission connection with the power source 41, the power source 41 is mounted on the turntable 20, and the transmission assembly 42 is in transmission connection between the power source 41 and the plurality of blades 30. That is, a plurality of blades 30 may be simultaneously driven to rotate together by the power source 41. Thus, when the angle of the blade 30 needs to be adjusted, the angle of each blade 30 does not need to be adjusted independently, and all the blades 30 can be adjusted together by starting the power source 41, so that the time for adjusting the blades 30 is greatly reduced. Further, even in the process that the blades 30 rotate along with the rotating disc 20, the angles of the blades 30 can be adjusted, so that the actual working process of the wind generating set is simulated more truly, and the actual use condition of the wind power generation supporting facilities is further simulated more truly. It should be noted that the transmission assembly 42 may be a conventional one-to-many transmission manner such as a gear set, a worm gear, and the like, and is not limited herein.

In some embodiments, the transmission assembly 42 includes a drive bevel gear 43 and a plurality of driven bevel gears 44, the drive bevel gear 43 is mounted at the driving end of the power source 41, and the drive bevel gear 43 is driven to rotate by the power source 41. A plurality of driven bevel gears 44 are provided in one-to-one correspondence with the plurality of paddles 30, and each driven bevel gear 44 is mounted to a corresponding one of the paddles 30 and engaged with the driving bevel gear 43. In this way, when the drive bevel gear 43 rotates, the plurality of driven bevel gears 44 also rotate together with the drive bevel gear 43, and the rotation of the drive bevel gear 43 is converted into simultaneous rotation of the plurality of blades 30 by the rotation of the plurality of driven bevel gears 44.

It is appreciated that in other embodiments, there may be a plurality of pitch mechanisms 40, a plurality of pitch mechanisms 40 corresponding to a plurality of blades 30, and each pitch mechanism 40 being in driving connection with a corresponding blade 30. Each pitch mechanism 40 includes a power source 41 and a drive assembly 42 drivingly connected to power source 41. Each blade 30 is driven by a power source 41 to drive a transmission assembly 42 to rotate the blade 30. Like this, also can satisfy the variable pitch demand of wind power generation simulation experiment device to a plurality of variable pitch mechanisms 40 can also be controlled alone to the angle of every paddle 30, satisfy different experimental needs.

Note that, instead of driving the rotation of the paddle 30 by the power source 41, the angle of the paddle 30 may be adjusted manually. In another embodiment of the present invention, refer to fig. 5 to 8. The wind power generation simulation experiment device comprises a plurality of positioning mechanisms 50 which are connected with a plurality of blades 30 in a one-to-one correspondence mode, and each positioning mechanism 50 can be connected with or separated from the rotating disc 20 in a controlled mode. When the positioning mechanism 50 is separated from the turntable 20, the positioning mechanism 50 rotates with the paddle 30 corresponding to the positioning mechanism 50; when the positioning mechanism 50 is coupled to the turntable 20, the positioning mechanism 50 prevents the paddle 30 from rotating relative to the turntable 20.

In an actual use process, if the angle of the paddle 30 needs to be adjusted, the rotation of the turntable 20 is stopped first, the paddle 30 needing to be adjusted is selected, the positioning mechanism 50 corresponding to the paddle 30 is separated from the turntable 20, then the paddle 30 is rotated until the paddle 30 rotates to a required position, and then the positioning mechanism 50 corresponding to the paddle 30 is connected with the turntable 20, so that the paddle 30 is fixed at the required position, and the angle adjustment of the paddle 30 is completed. The angle of the blade 30 is adjusted by the positioning mechanism 50, so that the wind power generation supporting facility on the blade 30 can be subjected to airflow resistance in different directions, and the actual working state of the wind power generation supporting facility is simulated. Compared with the method that the power source 41 is adopted to drive the blades 30, the positioning mechanism 50 is adopted to adjust the angle of the blades 30, so that the wind power generation simulation experiment device is simpler in structure and lower in cost.

In some embodiments, the positioning mechanism 50 includes a clamping block 52 and a positioning member 51, the clamping block 52 is connected to the blade 30 corresponding to the positioning mechanism 50 and has a positioning hole 53, and the turntable 20 is initially provided with a plurality of fixing holes 54. In the process that the blade 30 drives the clamping block 52 to rotate, the positioning holes 53 can sequentially correspond to the fixing holes 54, and the positioning element 51 penetrates through the positioning holes 53 and one fixing hole 54 corresponding to the positioning hole 53.

In actual use, the paddle 30 to be rotated is selected, and the positioning member 51 is removed, so that the paddle 30 can rotate relative to the turntable 20. And continuing to rotate the blade 30, so that the blade 30 rotates to a certain required angle, the positioning member 51 is inserted into the positioning hole 53 and the fixing hole 54 corresponding to the angle, and the blade 30 is fixed on the turntable 20, so that the angle adjustment of the blade 30 can be completed. Alternatively, the positioning member 51 is a conventional fastener such as a bolt, or the like.

In other embodiments, referring to fig. 7 and 8, the positioning mechanism 50 includes a plurality of positioning positions during rotation of the blades 30, each positioning position corresponding to a rotation angle of one blade 30. Each positioning position corresponds to a group of hole position groups. The clamping block 52 has a plurality of positioning holes 53, the turntable 20 has a plurality of fixing holes 54 corresponding to the plurality of positioning holes 53 one by one, and each corresponding one of the positioning holes 53 and one of the fixing holes 54 constitute a group of hole groups. When the positioning mechanism 50 rotates to one of the positioning positions, one positioning hole 53 and one fixing hole 54 of the corresponding hole group are aligned, and the positioning member 51 is inserted through the aligned fixing hole 54 and positioning hole 53.

In an actual use process, since the positioning hole 53 corresponds to the fixing holes 54, the distance between two adjacent fixing holes 54 must be greater than a fixed value due to a certain width of the fixing hole 54, and thus the angle corresponding to the fixing hole 54 must also be greater than a fixed angle, so that the angle adjustment of the blade 30 cannot achieve a more accurate value. And a plurality of hole groups are formed by the plurality of positioning holes 53 corresponding to the plurality of fixing holes 54, so that the plurality of fixing holes 54 do not interfere with each other, and thus, the corresponding fixing holes 54 and positioning holes 53 can be set for a rotation angle required by the blade 30, so that the angle adjustment of the blade 30 is more precise.

In an embodiment, the positioning mechanism 50 further includes a pressing plate 55 detachably connected to the clamping block 52, and when the positioning member 51 is inserted into the positioning hole 53, the pressing plate 55 covers the positioning hole 53. When the positioning member 51 is inserted into the positioning hole 53 and the fixing hole 54 corresponding to the angle, the positioning member 51 is engaged with the positioning hole 53 and the fixing hole 54 by the pressing plate 55.

In the embodiment of the invention, the wind power generation simulation experiment device further comprises a driving shaft 11 which can be controlled to rotate around the axis of the driving shaft, the driving shaft 11 is connected with the rotating disc 20 and drives the rotating disc 20 to rotate around a first rotating axis, and an electric slip ring 12 which is electrically connected with a wind power generation supporting facility is sleeved on the driving shaft 11. In the actual use process, the electric slip ring 12 supplies power to the wind power generation supporting facilities arranged on the blades 30, and the wind power generation supporting facilities can also work normally when the blades 30 rotate along with the rotating disc 20.

In the embodiment of the present invention, a speed measuring encoder 13 is further sleeved on the driving shaft 11. The rotating speed of the driving shaft 11 is measured through the speed measuring encoder 13, so that the rotating speed of the rotating disc 20 is obtained, the rotating speed is transmitted to the outside through the speed measuring encoder 13, and the rotating speed is conveniently monitored by a detector.

The wind power generation simulation experiment device has the following advantages:

the rotating disc 20 drives the blades 30 to rotate around the first axis for simulating the running condition of the wind generating set, and the rotation of the blades 30 around the second rotation axis can adjust the angle of the blades 30 for simulating the pitch changing process of the wind generating set. Through the simulation experiment device, the wind power generation supporting facilities of the wind generating set can be tested without hanging up, and the debugging time and cost of the wind generating set are greatly reduced.

The electric slip ring 12 supplies power to the wind power generation supporting facilities arranged on the blades 30, and the wind power generation supporting facilities can also work normally when the blades 30 rotate along with the rotating disc 20.

The rotating speed of the driving shaft 11 is measured through the speed measuring encoder 13, so that the rotating speed of the rotating disc 20 is obtained, the rotating speed is transmitted to the outside through the speed measuring encoder 13, and the rotating speed is conveniently monitored by a detector.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.