Wind power generation equipment based on source network load storage system

Abstract

The invention relates to the technical field of wind power generation, in particular to wind power generation equipment based on a source network load storage system. The generator is fixedly connected with a guide rail block; a first connecting block is rotationally connected to the guide rail block. A plurality of round rods I are rotationally connected to the connecting block I; a blade is fixedly connected to each round rod I; a connecting block II is fixedly connected to each round rod I; the inclination angle of the blade is adjusted by controlling the movable block to move leftwards, so that the capability of capturing aerodynamic force of the blade is reduced, the power generation power of the generator is reduced, the overload phenomenon is avoided, and the movable block can actively reduce kinetic energy by reducing the windward area of the blade on one hand and friction between the movable block and the friction ring on the other hand; and compared with a comparison file, the supporting frame does not need to be arranged to be of a folded structure, the stability is better, the dual-protection effect can be achieved only by moving the movable block, and the control steps are optimized.

Description

Technical Field

[0001] This invention relates to the technical field of wind power generation. More specifically, this invention relates to a wind power generation device based on a source-grid-load-storage system. Background Technology

[0002] Generators are an important component of the power generation, grid, load and storage system. Due to the abundance of wind resources along the coast, people often install small wind turbines at the seaside to generate electricity. However, typhoons occur frequently in coastal areas, and strong winds can cause the wind turbine blades to rotate too fast, leading to overload and equipment damage.

[0003] Therefore, the prior art discloses a patent for an offshore wind turbine generator set (publication number: CN117345539A), which designs the support rod of the wind turbine generator as a two-section structure and adds a hydraulic drive system at the connection to achieve tilting and erection. In typhoon weather, the wind turbine generator can be tilted down by the hydraulic drive system to avoid overload. However, this solution not only weakens the structural stability of the main support column, but also greatly increases the manufacturing and maintenance costs due to the introduction of the hydraulic system, limiting its economy and reliability in small wind power applications. Summary of the Invention

[0004] To overcome the drawbacks of existing technologies that use the method of collapsing wind turbines to avoid overload during typhoons, which weakens the structural stability of the main support structure and increases costs, this invention provides a wind power generation device based on a source-grid-load-storage system.

[0005] The technical implementation scheme of the present invention is as follows: a wind power generation device based on a source-grid-load-storage system includes a support frame and a generator connected to the support frame; it also includes a guide rail block; the guide rail block is fixedly connected to the generator; a connecting block 1 is rotatably connected to the guide rail block; several round rods 1 are rotatably connected to the connecting block 1; a blade is fixedly connected to each round rod 1; a connecting block 2 is fixedly connected to each round rod 1; a round rod 2 is fixedly connected to each connecting block 2; a movable block is slidably connected to the connecting block 1; the movable block has a groove with the same number of grooves as the round rods 1, and the ends of the round rods 2 slide in the corresponding grooves; a round rod 3 is fixedly connected to the movable block; a sleeve rod is slidably connected to the round rod 3, and the sleeve rod is fixedly connected to the generator input shaft; an electric push rod is fixedly connected to the generator; a connecting block 3 is fixedly connected to the telescopic end of the electric push rod, and the connecting block 3 is rotatably connected to the round rod 3; a friction ring is fixedly connected to the guide rail block, and the friction ring cooperates with the movable block.

[0006] Furthermore, a speed sensor is installed inside the generator.

[0007] Furthermore, a waterproof cover is installed on the outside of the generator.

[0008] Furthermore, it also includes a locking component, which includes short tooth one and short tooth two; several short teeth one are fixedly connected to the movable block; several short teeth two are connected to the generator, and short teeth two cooperate with short teeth one.

[0009] Furthermore, it also includes a protection component, which includes a first ring, a second ring, and a limiting block; the first ring is fixedly connected to the generator; the second ring is rotatably connected inside the first ring; the second ring is provided with a protrusion that slides in the annular space formed by the first and second rings; the protrusion has several through slots; the limiting block is fixedly connected to the inner side of the first ring, and the limiting block and the protrusion divide the annular space formed by the first and second rings into two parts, and the two parts are connected through the through slots.

[0010] Furthermore, a sealing strip is provided between the guide rail block and the connecting block.

[0011] Furthermore, it also includes a flow guide block; a flow guide block is fixedly attached to the connecting block.

[0012] Furthermore, a temperature sensor is installed inside the generator.

[0013] Furthermore, a radiator is installed inside the generator.

[0014] Furthermore, a sealing ring is provided between the connecting block and the round rod.

[0015] The beneficial effects are as follows: First, in winds of level 7 to 10, the tilt angle of the blades can be adjusted by controlling the movable block to move to the left, thereby reducing the blades' ability to capture aerodynamic forces and thus reducing the generator's power output, avoiding overload. In winds greater than level 10, the movable block can reduce the windward area of ​​the blades and actively reduce kinetic energy through friction with the friction ring, thereby achieving deceleration. Compared with the comparative document, this device does not require the support frame to be set as a folding structure, resulting in better stability. Moreover, the dual protection effect can be achieved simply by moving the movable block, thus optimizing the operation steps. 2. When the wind speed is greater than level 15, the movable block is locked by the cooperation of short teeth one and short teeth two, so that the movable block stops driving the round rod three to rotate, thereby stopping the round rod three from driving the input shaft of the generator to rotate, avoiding overload of the generator and achieving an emergency braking effect. Third, by cooperating with ring one and ring two, the moving block is buffered and decelerated, thereby reducing the pressure of short teeth one to short teeth two, realizing the protection function, and thus improving the service life. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of the wind power generation equipment based on the source-grid-load-storage system of the present invention is shown; Figure 2 A schematic diagram showing the installation position of the electric actuator of the present invention is provided. Figure 3 A schematic diagram of the inner side of the connecting block of the present invention is shown; Figure 4 A schematic diagram of the structure of the protective component of the present invention is shown; Figure 5 A schematic diagram of the structure of the active block of the present invention is shown; Figure 6 An exploded view of the protective component of the present invention is shown.

[0017] Parts and their numbers in the diagram: 1-Support frame, 2-Generator, 3-Guide rail block, 4-Connecting block one, 5-Round rod one, 6-Blade, 7-Connecting block two, 8-Round rod two, 9-Moving block, 10-Round rod three, 11-Sleeve rod, 12-Electric push rod, 13-Connecting block three, 14-Friction ring, 201-Short tooth one, 202-Short tooth two, 203-Ring one, 204-Ring two, 205-Limiting block, 206-Guide block, 91-Groove, 92-Protrusion, 93-Through groove. Detailed Implementation

[0018] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0019] Example 1: A wind power generation device based on a source-grid-load-storage system, such as... Figures 1-6 As shown, it includes a support frame 1 and a generator 2; the generator 2 is connected to the support frame 1; it also includes a guide rail block 3, a connecting block 1 4, a round rod 1 5, a blade 6, a connecting block 2 7, a round rod 2 8, a movable block 9, a round rod 3 10, a sleeve rod 11, an electric push rod 12, a connecting block 3 13, a short tooth 201, and a friction ring 14; the guide rail block 3 is bolted to the generator 2; the connecting block 1 4 is rotatably connected to the guide rail block 3; three round rods 1 5 are rotatably connected to the connecting block 1 4; each round rod 1 5 has a blade 6 fixedly attached to it, and the blade 6 is made of alloy material; each round rod 1 5 has a connecting block 2 7 fixedly attached to it; each connecting block 2 7... A round rod 8 is fixedly connected to each of the two 7; a movable block 9 is slidably connected to the inner side of the connecting block 4; three grooves 91 are provided on the movable block 9, and the ends of the round rods 8 slide in the corresponding grooves 91; a round rod 10 is bolted to the movable block 9; a sleeve rod 11 is slidably connected to the round rod 10, and the sleeve rod 11 is fixedly connected to the input shaft of the generator 2, and the sleeve rod 11 is made of alloy material; an electric push rod 12 is bolted to the outer shell of the generator 2; a connecting block 13 is fixedly connected to the telescopic end of the electric push rod 12, and the connecting block 13 is rotatably connected to the round rod 10, and the connecting block 13 is made of alloy material; a friction ring 14 is fixedly connected to the guide rail block 3.

[0020] The generator 2 is equipped with a speed sensor to monitor the speed of the input shaft of the generator 2.

[0021] A waterproof cover is installed on the outside of generator 2 to prevent rainwater from flowing into the inside of generator 2.

[0022] When generating electricity, the airflow drives the blades 6 to move. The blades 6 drive the connecting block 4 to rotate on the guide block 3. The connecting block 4 drives the movable block 9 to rotate. The movable block 9 drives the round rod 10 to rotate. The round rod 10 drives the sleeve rod 11 to rotate. The sleeve rod 11 drives the input shaft of the generator 2 to rotate, so that the generator 2 can perform the power generation operation.

[0023] In winds of force 7 to 10, a typical small wind turbine 2 is already operating at or exceeding its rated power. If necessary, the electric push rod 12 is activated, retracting to pull the connecting block 3 13. The connecting block 3 13 then moves the round rod 3 10, causing it to slide inwards towards the sleeve 11. The round rod 3 10 then moves the movable block 9, which, under the limiting action of the groove 91, combines... Figure 5 As shown, the movable block 9 will drive the second round rod 8 to move in a circular motion around the axis of the first round rod 5. The second round rod 8 will drive the second connecting block 7 to rotate, the second connecting block 7 will drive the first round rod 5 to rotate, and the first round rod 5 will drive the blade 6 to rotate. Depending on the specific situation, the tilt angle and the size of the windward surface of the blade 6 can be adjusted to reduce the windward surface area, thereby reducing the ability of the blade 6 to capture aerodynamic forces, thus reducing the power generation of the generator 2 and avoiding overload.

[0024] It also includes a locking component, which includes short tooth 1 201 and short tooth 2 202; several short teeth 1 201 are welded on the movable block 9; several short teeth 202 are connected to the generator 2 to lock the movable block 9.

[0025] When the wind speed exceeds level 10, the environmental conditions are no longer suitable for small wind power generation. The electric actuator 12 is retracted to its limit position, causing the third round rod 10 to touch the inner bottom surface of the sleeve rod 11. The second round rod 8 moves to the other end of the groove 91, making the large flat portion of the blade 6 parallel to the airflow and no longer facing the wind, essentially eliminating the blade 6's ability to capture aerodynamic forces. During this process, combined with... Figure 3 As shown, specifically, when the circular surface of the three rods 10 moves to a distance of about three centimeters from the inner bottom surface of the sleeve rod 11, the side curved surface of the movable block 9 moves to the inner side of the friction ring 14 and contacts it. At this time, friction is generated between the movable block 9 and the friction ring 14 to reduce kinetic energy. On the one hand, the windward area of ​​the blade 6 is reduced, and on the other hand, the kinetic energy is actively reduced by the friction ring 14, thereby achieving the purpose of deceleration.

[0026] To enhance the control and stability of blade 6 in the wind, the rotational speed of blade 6 can be monitored in real time by the speed sensor built into generator 2. When the speed of blade 6 and moving block 9 decreases to 50-80 revolutions per minute under the action of friction ring 14, blade 6 is in a low-speed rotation visible to the naked eye. Subsequently, electric push rod 12 retracts to its limit position, allowing round rod 3 10 to completely touch the inner bottom surface of sleeve rod 11. At this time, moving block 9 drives short tooth 1 201 to mesh with short tooth 2 202. Through the cooperation of short tooth 1 201 and short tooth 2 202, moving block 9 is locked, causing moving block 9 to stop driving round rod 3 10 to rotate. This causes round rod 3 10 to stop driving the input shaft of generator 2 to rotate, avoiding overload of generator 2 and achieving an emergency braking effect.

[0027] It also includes a protective component, which includes a first ring 203, a second ring 204, and a limiting block 205; the first ring 203 is fixedly connected to the generator 2; the second ring 204 is rotatably connected inside the first ring 203; the second ring 204 is provided with a protrusion 92, which slides in the annular space formed by the first ring 203 and the second ring 204; the protrusion 92 is provided with several through slots 93; the limiting block 205 is welded to the inner side of the first ring 203, and the limiting block 205 and the protrusion 92 divide the annular space formed by the first ring 203 and the second ring 204 into two parts, and the two parts are connected through the through slots 93.

[0028] A sealing strip is provided between guide block 3 and connecting block 4 to reduce the intrusion of impurities.

[0029] Movable block 9 drives short tooth 201 to mesh with short tooth 202. The engagement of short teeth 201 and 202 locks movable block 9 in place. Prior to this, although friction ring 14 has slowed movable block 9, it possesses very low kinetic energy. When movable block 9 rotates, short teeth 201 mesh with short tooth 202, causing collisions between them and reducing their lifespan. Therefore, a protective component is installed on generator 2 to extend the lifespan of short teeth 201 and 202 as much as possible. This allows movable block 9 to drive ring 204 to rotate when short teeth 201 and 202 mesh. Furthermore, hydraulic oil is filled between ring 203 and ring 204, allowing ring 204 to rotate. During the process, the viscous hydraulic oil needs to pass through the narrow through groove 93, generating relatively large resistance (the principle is equivalent to a viscous damper), which buffers the moving block 9, thereby reducing the pressure of short tooth 1 201 on short tooth 202 and achieving a protective function. When the protrusion 92 is about to contact the limiting block 205, the limiting block 205 blocks and limits the protrusion 92, thereby limiting the ring 204, and then the short tooth 1 201 and short tooth 202 limit the moving block 9, forcibly stopping the moving block 9. In use, the ring 1 203 and ring 204 cooperate to buffer and decelerate the moving block 9, thereby reducing the pressure of short tooth 1 201 on short tooth 202, achieving a protective function, and thus improving the service life.

[0030] Example 2, based on Example 1, such as Figure 2 As shown, it also includes a flow guide block 206; the flow guide block 206 is bolted to the connecting block 4, and the flow guide block 206 guides the airflow to reduce the windward area of ​​the connecting block 4, so that the equipment is less affected by wind force on windy days and improves safety.

[0031] Generator 2 is equipped with a temperature sensor. When generator 2 experiences a short circuit and spontaneous combustion, the temperature sensor can detect the abnormal temperature and alert the staff to perform maintenance.

[0032] The generator 2 is equipped with a radiator to dissipate the heat generated by the generator 2 during operation.

[0033] A sealing ring is provided between the connecting block 4 and the round rod 5 to reduce the intrusion of impurities.

[0034] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the invention without departing from the principles and spirit of the invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for illustrative purposes only and is not intended to limit the invention; rather, the scope of protection is defined by the content of the claims.

Claims

1. A wind power generation device based on a source-grid-load-storage system, comprising a support frame (1) and a generator (2) connected to the support frame (1); characterized in that: It also includes a guide rail block (3); a guide rail block (3) is fixedly connected to the generator (2); a connecting block one (4) is rotatably connected to the guide rail block (3); several round rods one (5) are rotatably connected to the connecting block one (4); a blade (6) is fixedly connected to each round rod one (5); a connecting block two (7) is fixedly connected to each round rod one (5); a round rod two (8) is fixedly connected to each connecting block two (7); a movable block (9) is slidably connected to the connecting block one (4); a groove (91) with the same amount as the round rod one (5) is opened on the movable block (9). ), and the end of the round rod two (8) slides in the corresponding groove (91); the round rod three (10) is fixedly connected to the movable block (9); the sleeve rod (11) is slidably connected to the round rod three (10), and the sleeve rod (11) is fixedly connected to the input shaft of the generator (2); the electric push rod (12) is fixedly connected to the generator (2); the extension end of the electric push rod (12) is fixedly connected to the connecting block three (13), and the connecting block three (13) is rotatably connected to the round rod three (10); the friction ring (14) is fixedly connected to the guide rail block (3), and the friction ring (14) cooperates with the movable block (9).

2. A wind power generation device based on a source-grid-load-storage system according to claim 1, characterized in that: A speed sensor is installed inside the generator (2).

3. A wind power generation device based on a source-grid-load-storage system according to claim 2, characterized in that: A waterproof cover is installed on the outside of the generator (2).

4. A wind power generation device based on a source-grid-load-storage system according to claim 2, characterized in that: It also includes a locking component, which includes short tooth one (201) and short tooth two (202); several short teeth one (201) are fixedly connected to the movable block (9); several short teeth two (202) are connected to the generator (2), and short teeth two (202) cooperate with short teeth one (201).

5. A wind power generation device based on a source-grid-load-storage system according to claim 4, characterized in that: It also includes a protective component, which includes a first ring (203), a second ring (204) and a limiting block (205); the first ring (203) is fixedly connected to the generator (2); the second ring (204) is rotatably connected inside the first ring (203); the second ring (204) is provided with a protrusion (92), which slides in the annular space formed by the first ring (203) and the second ring (204); the protrusion (92) is provided with several through slots (93); the limiting block (205) is fixedly connected to the inner side of the first ring (203), and the limiting block (205) and the protrusion (92) divide the annular space formed by the first ring (203) and the second ring (204) into two parts, and the two parts are connected through the through slots (93).

6. A wind power generation device based on a source-grid-load-storage system according to claim 5, characterized in that: A sealing strip is provided between the guide block (3) and the connecting block (4).

7. A wind power generation device based on a source-grid-load-storage system according to claim 6, characterized in that: It also includes a flow guide block (206); the flow guide block (206) is fixedly attached to the connecting block (4).

8. A wind power generation device based on a source-grid-load-storage system according to claim 7, characterized in that: A temperature sensor is installed inside the generator (2).

9. A wind power generation device based on a source-grid-load-storage system according to claim 8, characterized in that: The generator (2) is equipped with a radiator.

10. A wind power generation device based on a source-grid-load-storage system according to any one of claims 1-9, characterized in that: A sealing ring is provided between the connecting block 1 (4) and the round rod 1 (5).

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