A wind power generation simulation and prediction device

Abstract

This utility model relates to the field of wind power generation technology and discloses a wind power generation simulation and prediction device, including a base, a support column rotatably mounted on the base about its central axis, a mounting shell mounted on the top of the support column, a generator and a gearbox driven by the generator, a rotor assembly including an end connected to the input end of the gearbox, several rotating shafts rotatably mounted on the end about their respective axes, and several fan blades fixedly connected to each of the rotating shafts, and a pitch adjustment assembly disposed inside the end for synchronously adjusting the pitch angle of the fan blades. In this utility model, the difference in power generation at different angles can be tested by synchronously adjusting the fan blade angles, and the horizontal orientation of the fan blade structure can be quickly adjusted according to the wind direction of the wind farm, making operation convenient.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to a wind power generation simulation and prediction device. Background Technology

[0002] Wind power generation is a clean energy utilization technology that uses wind power to drive the rotation of wind turbine blades, which in turn converts wind energy into electrical energy through a generator. It is an important direction for the development of new energy sources worldwide. Experimental devices or models can be built to simulate and predict wind power generation output, simulating the power generation process under different wind conditions and equipment parameters. This allows for the prediction of power output characteristics, providing data support for efficient wind power utilization, grid dispatching, and equipment optimization.

[0003] Wind power generation simulation and prediction devices are commonly used in large-scale wind turbine farms, but existing devices have shortcomings. Firstly, they lack a structure for adjusting the blade angle, making it difficult to test the efficiency differences in wind energy capture at different angles under the same wind speed. Secondly, existing devices cannot quickly adjust the horizontal orientation of the blade structure according to the wind direction during testing, making operation inconvenient. Therefore, this paper proposes a wind power generation simulation and prediction device to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a wind power generation simulation and prediction device, which aims to improve the existing wind power generation simulation devices that lack a blade angle adjustment structure, making it difficult to test the differences in wind energy capture efficiency at different angles, and unable to quickly adjust the horizontal orientation of the blade structure according to the wind source and wind direction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wind power generation simulation and prediction device, comprising a base, the device further comprising: A support column rotatably mounted on the pedestal about its central axis; A mounting housing is installed at the top of the support column, and a generator and a gearbox that are connected to the generator for transmission are provided inside the mounting housing. The rotor assembly includes an end connected to the input end of the gearbox, a plurality of rotating shafts rotatably mounted on the end about their respective axes, and a plurality of fan blades fixedly connected to each of the rotating shafts. A pitch adjustment assembly located inside the end head is used to synchronously adjust the pitch angle of several fan blades. A steering assembly located inside the pedestal is used to drive the support column to rotate about its central axis.

[0006] As a further description of the above technical solution: The steering assembly includes a ring gear fixedly sleeved at the bottom of the support column, a rack meshing with the ring gear, and a cylinder for driving the rack to perform linear motion.

[0007] As a further description of the above technical solution: The device further includes a guiding mechanism, which includes an inner slide rail fixed inside the base and an outer slide rail slidably connected to the inner slide rail. The rack is fixedly connected to the outer slide rail, and the output end of the cylinder is connected to the outer slide rail.

[0008] As a further description of the above technical solution: The pitch adjustment assembly includes a small bevel gear fixedly connected to the end of each of the rotating shafts, a large bevel gear meshing with all the small bevel gears, and a locking mechanism for locking the large bevel gear in a specific angular position.

[0009] As a further description of the above technical solution: The locking mechanism includes a crossbar fixedly connected inside the end, a sliding sleeve sliding on the crossbar, a locking pin fixedly connected to the sliding sleeve and capable of selectively engaging with the large bevel gear, and a lever extending out of the end and connected to the sliding sleeve. The large bevel gear has several slots adapted to the locking pin, and the bottom end of the end has a sliding opening for the lever to slide.

[0010] As a further description of the above technical solution: A magnet is fixed to the end of the card post, and a magnet is fixed to the inner wall of each card slot. The magnet and the magnet are attracted to each other by magnetic force.

[0011] As a further description of the above technical solution: The base is fixed to the bottom of the pedestal, and the four corners of the bottom of the base are fixedly connected to the support legs. A ventilation plate is also fixed to the outer wall of the mounting shell.

[0012] As a further description of the above technical solution: The tips of several fan blades are connected to each other by rotating rings.

[0013] This utility model has the following beneficial effects: 1. In this utility model, by moving the lever at the end, the locking pin on the sliding sleeve is disengaged from the slot, releasing the rotational lock on the large bevel gear. At this time, one of the fan blades can be rotated. Under the meshing transmission of the small bevel gear and the large bevel gear, the other fan blades can rotate synchronously to adjust the angle. After that, the lever is pushed to insert the locking pin into the corresponding slot and lock the angle of the fan blade with the help of the magnet. Thus, this device can test the difference in wind power generation caused by different angles of the fan blades under the same wind speed by changing the angle of the fan blades, thereby expanding the simulation prediction range.

[0014] 2. In this utility model, the outer slide rail and rack are moved along the inner slide rail by the start cylinder. Under the meshing transmission of the rack and ring gear, the support column can be rotated accordingly to change the horizontal orientation of the upper fan blade structure. Thus, the prediction device can quickly adjust the horizontal orientation of the fan blade structure according to the wind source and wind direction, and is easy to operate. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a wind power generation simulation and prediction device proposed in this utility model; Figure 2 This is a cross-sectional schematic diagram of the mounting shell of a wind power generation simulation and prediction device proposed in this utility model; Figure 3 This is a schematic diagram of the internal structure of the end of a wind power generation simulation and prediction device proposed in this utility model; Figure 4 This is a schematic diagram of the structure at the end of a wind power generation simulation and prediction device proposed in this utility model; Figure 5 This is a schematic diagram of the structure of the base of the wind power generation simulation and prediction device proposed in this utility model.

[0016] Legend: 1. Base; 2. Mounting housing; 3. Generator; 4. Gearbox; 5. End; 6. Rotating shaft; 7. Small bevel gear; 8. Fan blade; 9. Crossbar; 10. Sliding sleeve; 11. Lever; 12. Large bevel gear; 13. Locking pin; 14. Magnet one; 15. Locking slot; 16. Magnet two; 17. Lever opening; 18. Ring; 19. Base; 20. Support column; 21. Ring gear; 22. Cylinder; 23. Inner slide rail; 24. Outer slide rail; 25. Rack; 26. Ventilation plate; 27. Support leg. Detailed Implementation

[0017] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0018] Reference Figures 1-5One embodiment of this utility model provides: a wind power generation simulation and prediction device, including a base 1, and the device further includes: The support column 20, which is rotatably mounted on the base 1 around its central axis, serves as one of the main support components of the device and provides a stable mounting base for the upper fan blade 8 and generator 3 structure. Its rotatable characteristic is the key to realizing the horizontal steering adjustment of the fan blade 8. The mounting shell 2, installed at the top of the support column 20, provides installation and protection space for the internal generator 3 and gearbox 4, preventing external dust and impacts from affecting the precision transmission components. The mounting shell 2 contains the generator 3 and the gearbox 4, which is connected to the generator 3 for transmission. The generator 3 is the core component for converting wind energy into electrical energy. It can convert the mechanical energy transmitted by the gearbox 4 into electrical energy. The gearbox 4 can convert the low-speed power at the input end into high-speed power and transmit it to the generator 3 to meet the working speed requirements of the generator 3. The rotor assembly includes an end 5 connected to the input end of the gearbox 4, several rotating shafts 6 rotatably mounted on the end 5 about their respective axes, and several fan blades 8 fixedly connected to each rotating shaft 6. The end 5 serves as the mounting carrier for the rotor assembly, providing mounting positions for the rotating shafts 6 and the pitch adjustment assembly, and simultaneously transferring the wind energy received by the fan blades 8 to the gearbox 4. The fan blades 8 are components that directly capture wind energy. When the wind source blows the fan blades 8 to rotate, it can drive the rotating shafts 6 to rotate synchronously, converting wind energy into mechanical energy. The pitch adjustment assembly located inside the end 5 is used to synchronously adjust the pitch angle of several fan blades 8. A steering assembly located inside the base 1 is used to drive the support column 20 to rotate about its central axis.

[0019] Reference Figure 5 The steering assembly includes a ring gear 21 fixedly mounted on the bottom of the support column 20, a rack 25 meshing with the ring gear 21, and a cylinder 22 for driving the rack 25 to perform linear motion. The ring gear 21 rotates synchronously with the support column 20 and converts the linear motion of the rack 25 into its own rotational motion through meshing with the rack 25. The rack 25 performs linear motion under the drive of the cylinder 22 and drives the ring gear 21 to rotate through tooth meshing. It is a key component for transmitting power. The cylinder 22, as a power source, can output a stable linear driving force and provide power support for the movement of the rack 25.

[0020] Reference Figure 5The device also includes a guiding mechanism, which includes an inner slide rail 23 fixed inside the base 1 and an outer slide rail 24 slidably connected to the inner slide rail 23. A rack 25 is fixedly connected to the outer slide rail 24, and the output end of the cylinder 22 is connected to the outer slide rail 24. The inner slide rail 23 provides a fixed track support for the sliding of the outer slide rail 24, ensuring the accuracy of the movement direction of the outer slide rail 24. The outer slide rail 24 can slide stably along the inner slide rail 23, while driving the rack 25 to move synchronously, reducing the shaking of the rack 25 during movement.

[0021] Reference Figure 3 The pitch adjustment assembly includes small bevel gears 7 fixedly connected to the ends of each rotating shaft 6, a large bevel gear 12 meshing with all the small bevel gears 7, and a locking mechanism for locking the large bevel gear 12 in a specific angular position. The small bevel gears 7 rotate synchronously with the rotating shaft 6 and transmit power through meshing with the large bevel gear 12, ensuring synchronous adjustment of all rotating shafts 6. The large bevel gear 12 meshes with multiple small bevel gears 7 simultaneously, and when rotating, it can drive all the small bevel gears 7 to rotate synchronously, thereby achieving synchronous adjustment of the pitch angle of the fan blade 8.

[0022] Reference Figure 3 and Figure 4 The locking mechanism includes a crossbar 9 fixedly connected inside the end 5, a sliding sleeve 10 sliding on the crossbar 9, a locking post 13 fixedly connected to the sliding sleeve 10 and selectively engaging with the large bevel gear 12, and a lever 11 extending out of the end 5 and connected to the sliding sleeve 10. The large bevel gear 12 has several slots 15 adapted to the locking post 13. The bottom end of the end 5 has a sliding opening 17 for the lever 11 to slide. The crossbar 9 provides a stable sliding guide for the sliding sleeve 10, ensuring that the sliding sleeve 10 moves in a straight line. 10 can slide along the crossbar 9, driving the locking pin 13 and the lever 11 to move synchronously. It is the motion carrier of the locking mechanism. The locking pin 13 locks or unlocks the large bevel gear 12 by engaging or disengaging with the slot 15. The lever 11 is manually operated by the operator, which drives the sliding sleeve 10 to switch the locking state. The slot 15 provides multiple locking positions for the locking pin 13 to meet the fixing requirements of different pitch angles. The dial 17 provides space for the sliding of the lever 11, while limiting the range of motion of the lever 11.

[0023] Reference Figure 3 A magnet 14 is fixed to the end of the locking post 13, and a magnet 16 is fixed to the inner wall of each slot 15. The magnet 14 and the magnet 16 are attracted to each other by magnetic force. The magnet 14 and the magnet 16 use the property of opposite poles attracting each other to provide additional fixing force after the locking post 13 is inserted into the slot 15, to prevent the locking post 13 from accidentally disengaging from the slot 15, and to ensure the stability of the locking state of the large bevel gear 12.

[0024] Reference Figure 1The base 19 is fixed to the bottom of the platform 1. The base 19 increases the contact area between the device and the ground, improving the overall stability. The four corners of the bottom of the base 19 are fixedly connected to the support legs 27. The support legs 27 support the base 19, preventing the base 19 from directly contacting the ground and getting damp. At the same time, it facilitates the placement and leveling of the device. A ventilation plate 26 is also fixed on the outer wall of the mounting shell 2. The ventilation plate 26 can enhance the air circulation inside the mounting shell 2, help the generator 3 and gearbox 4 dissipate heat, and prevent the components from affecting their working performance due to overheating.

[0025] Reference Figure 4 The tips of several fan blades 8 are connected to each other by rotating ring 18. The ring 18 connects the tips of multiple fan blades 8 into a whole, which enhances the structural stability of the fan blades 8 when rotating and reduces the shaking or deformation of the fan blades 8 caused by airflow impact.

[0026] Working Principle: This wind power generation simulation and prediction device is used in wind farms and is installed in an enclosed indoor location. An external wind source, such as an axial flow fan, is installed. Driven by a motor, the fan rotates at high speed, drawing in and accelerating surrounding air to create an airflow with a certain speed and volume. After being converged and rectified by a guide shroud, the airflow forms a stable jet that blows onto the fan blades 8. The control system collects the wind speed and direction parameters of the wind source in real time and compares them with preset parameters. By adjusting the fan speed, the output parameters of the wind source are made to reach the preset values, ensuring a stable and controllable wind environment for the fan blades 8. The external wind source applies wind force to the fan blades 8 according to the preset wind conditions. The function is as follows: the fan blades 8 begin to rotate under the push of the wind, converting wind energy into mechanical energy. The rotation of the fan blades 8 is transmitted to the gearbox 4, which adjusts the speed to meet the working speed requirements of the generator 3. The generator 3 performs electromagnetic induction motion under the drive of mechanical energy, converting mechanical energy into electrical energy. By collecting the output voltage and current of the generator 3, the real-time power generation of the generator 3 is calculated. At the same time, the actual collected parameters are compared and analyzed with the preset wind condition parameters and equipment parameters. Combined with historical data and prediction models, the wind power generation under different wind conditions is simulated and predicted. The model of the generator 3 is MY1.5S-82.

[0027] By moving the lever 11 at end 5, the locking pin 13 on the sliding sleeve 10 is disengaged from the slot 15, releasing the rotational lock on the large bevel gear 12. At this time, one of the fan blades 8 can be rotated. Under the meshing transmission of the small bevel gear 7 and the large bevel gear 12, the other fan blades 8 can rotate synchronously to adjust the angle. After that, push the lever 11 to insert the locking pin 13 into the corresponding slot 15. Using the principle of magnetic attraction between opposite poles, the locking pin 13 is kept in a stable position to lock the angle of the fan blade 8. Thus, the device can test the difference in wind power generation caused by different angles of the fan blade 8 under the same wind speed conditions by changing the angle of the fan blade 8, thereby improving the simulation prediction range.

[0028] By activating the cylinder 22, the outer slide rail 24 and the rack 25 are pushed to move along the inner slide rail 23. Under the meshing transmission of the rack 25 and the ring gear 21, the support column 20 can be rotated accordingly to change the horizontal orientation of the upper fan blade 8 structure. Thus, the predictive device can quickly adjust the horizontal orientation of the fan blade 8 structure according to the wind direction of the wind source, which is convenient to operate.

Claims

1. A wind power generation simulation and prediction device, comprising a base (1), characterized in that, The device also includes: A support column (20) is rotatably mounted on the pedestal (1) about its central axis. The mounting housing (2) is installed at the top of the support column (20), and the mounting housing (2) contains a generator (3) and a gearbox (4) that is connected to the generator (3) for transmission. The rotor assembly includes an end (5) connected to the input end of the gearbox (4), a plurality of rotating shafts (6) rotatably mounted on the end (5) about their respective axes, and a plurality of fan blades (8) fixedly connected to each of the rotating shafts (6). The pitch adjustment assembly located inside the end (5) is used to synchronously adjust the pitch angle of several fan blades (8); A steering assembly located inside the pedestal (1) is used to drive the support column (20) to rotate about its central axis.

2. The wind power generation simulation and prediction device according to claim 1, characterized in that: The steering assembly includes a ring gear (21) fixedly sleeved on the bottom of the support (20), a rack (25) meshing with the ring gear (21), and a cylinder (22) for driving the rack (25) to perform linear motion.

3. The wind power generation simulation and prediction device according to claim 2, characterized in that: The device also includes a guide mechanism, which includes an inner slide rail (23) fixed inside the base (1) and an outer slide rail (24) slidably connected to the inner slide rail (23). The rack (25) is fixedly connected to the outer slide rail (24), and the output end of the cylinder (22) is connected to the outer slide rail (24).

4. The wind power generation simulation and prediction device according to claim 1, characterized in that: The pitch adjustment assembly includes a small bevel gear (7) fixedly connected to the end of each of the rotating shafts (6), a large bevel gear (12) meshing with all the small bevel gears (7), and a locking mechanism for locking the large bevel gear (12) in a specific angular position.

5. The wind power generation simulation and prediction device according to claim 4, characterized in that: The locking mechanism includes a crossbar (9) fixedly connected inside the end (5), a sliding sleeve (10) sliding on the crossbar (9), a locking pin (13) fixedly connected to the sliding sleeve (10) and selectively engaging with the large bevel gear (12), and a lever (11) extending out of the end (5) and connected to the sliding sleeve (10). The large bevel gear (12) has several slots (15) adapted to the locking pin (13), and the bottom end of the end (5) has a sliding opening (17) for the lever (11) to slide.

6. The wind power generation simulation and prediction device according to claim 5, characterized in that: A magnet (14) is fixed to the end of the card post (13), and a magnet (16) is fixed to the inner wall of each card slot (15). The magnet (14) and the magnet (16) are attracted to each other by magnetic force.

7. The wind power generation simulation and prediction device according to claim 1, characterized in that: The base (1) is fixed to the bottom of the platform (1), and the four corners of the bottom of the base (19) are fixedly connected to the support legs (27). A ventilation plate (26) is also fixed on the outer wall of the mounting shell (2).

8. The wind power generation simulation and prediction device according to claim 1, characterized in that: The tips of several fan blades (8) are connected to each other by a ring (18).

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