Wind power plant primary frequency modulation control protection device

Abstract

The invention discloses a wind power plant primary frequency modulation control protection device, which relates to the technical field of power frequency modulation and comprises a bottom plate, and frequency modulation equipment is placed on the top surface of the bottom plate; a T-shaped plate is fixedly arranged in the middle of the front side edge of the top face of the bottom plate, a fixed baffle is fixedly arranged at the top end of the T-shaped plate, a first hollow plate is arranged on the rear side of the top face of the bottom plate, two pairs of first rubber wheels are installed on the first hollow plate, a pair of second hollow plates is arranged on the two sides of the top face of the bottom plate, and two pairs of second rubber wheels are installed on the second hollow plates. The four side faces of the frequency modulation equipment are firmly fixed through the rubber baffles, the two pairs of first rubber wheels and the four pairs of second rubber wheels. The device is simple in structure, safe, reliable and wide in application range, can be flexibly adjusted according to the shapes and sizes of different frequency modulation devices, achieves efficient and safe fixation, improves the use efficiency and reliability of the frequency modulation devices, achieves firm fixation of the frequency modulation devices, and meanwhile has the advantages of being convenient to install and operate and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power frequency regulation, and in particular to a primary frequency regulation control and protection device for a wind farm. Background Art

[0002] In recent years, due to the rapid development of renewable energy, the scale of wind farms has continued to expand, and its intermittent power generation characteristics have posed a challenge to the stable operation of the power system. As a distributed power generation output device, wind turbines are crucial to maintaining the system frequency.

[0003] Most existing FM equipment needs to be installed in a fixed position or platform to work, and there are the following problems: insufficient clamping force, it is difficult to firmly fix the FM equipment, and it is easy to move or fall off; the scope of application is narrow, and it is difficult to adapt to FM equipment of different shapes and sizes. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a primary frequency regulation control and protection device for a wind farm.

[0005] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions:

[0006] A primary frequency modulation control and protection device for a wind farm comprises a bottom plate, a rectangular through hole is opened in the middle of the top surface of the bottom plate, a U-shaped plate is fixed on the front side of the rectangular through hole, and a frequency modulation device is placed on the top surface of the U-shaped plate;

[0007] A T-shaped plate is fixedly provided at the middle of the front side edge of the top surface of the bottom plate, a fixed baffle is fixedly provided at the top end of the T-shaped plate, a rubber baffle is fixedly provided at the back of the fixed baffle, and the back of the rubber baffle is against the front of the frequency modulation device;

[0008] A first hollow plate connected in a front-to-rear sliding manner is provided on the rear side of the top surface of the bottom plate, a pair of first connecting shafts are inserted and rotatably penetrated inside the first hollow plate, and a first swing arm is fixedly provided in the middle of each first connecting shaft;

[0009] A first wheel axle is rotatably inserted at the outer end of each of the first swing arms, and a first rubber wheel is fixedly provided at the upper and lower ends of each of the first wheel axles, and each of the first rubber wheels abuts against the back of the frequency modulation device;

[0010] A pair of second hollow plates connected in a front-rear sliding manner are provided on both sides of the top surface of the bottom plate, a pair of second connecting shafts are rotatably inserted into the interior of each of the second hollow plates, and a second swing arm is fixedly provided in the middle of each of the second connecting shafts;

[0011] A second wheel axle is rotatably inserted at the outer end of each second swing arm, and a second rubber wheel is fixedly arranged at the upper and lower ends of each second wheel axle, and each second rubber wheel abuts against the side of the frequency modulation device.

[0012] Preferably, a first T-shaped slide groove is provided on the rear side of the top surface of the bottom plate and is distributed front to back, a first T-shaped slide plate is provided inside the first T-shaped slide groove for sliding engagement, and the rear end portion of the top surface of the first T-shaped slide plate is fixedly connected to the middle portion of the bottom surface of the first hollow plate.

[0013] Preferably, a directional through hole is provided in the middle of the front side wall of the rectangular through hole, and an electric telescopic cylinder with the telescopic end facing backward is installed inside the square through hole, and the telescopic rod end of the electric telescopic cylinder is fixedly connected to the front end of the first T-shaped slide plate.

[0014] Preferably, the top end of each of the first connecting shafts is sleeved with a concentrically fixed first gear, and a pair of first gears are meshingly connected, and the upper and lower sides of each of the first connecting shafts are sleeved with a first torsion spring with one end fixedly connected, and the other end of each of the first torsion springs is fixedly connected to the first hollow plate.

[0015] Preferably, a pair of symmetrically distributed second T-shaped grooves are provided on the left and right sides of the top surface of the bottom plate, and a second T-shaped slide plate is slidably engaged inside each of the second T-shaped grooves, and the outer end of the top surface of each of the second T-shaped slide plates is fixedly connected to the middle part of the bottom surface of the second hollow plate on the same side.

[0016] Preferably, the top end of each of the second connecting shafts is sleeved with a concentrically fixed second gear, and a pair of second gears located on the same side are meshingly connected, and the upper and lower sides of each of the second connecting shafts are sleeved with a second torsion spring with one end fixedly connected, and the other end of each of the second torsion springs is fixedly connected to the second hollow plate.

[0017] Preferably, a trapezoidal opening slide with its opening facing forward is fixedly provided on the front end of the top surface of the first T-shaped slide, and an obliquely distributed limiting slide groove is opened on the inner end of the top surface of each second T-shaped slide, and the two sides of the trapezoidal opening slide are slidably engaged in a pair of limiting slide grooves.

[0018] Preferably, two pairs of symmetrically distributed fixed ear seats are fixed on the front side of the top surface of the base plate, an L-shaped swing arm is hinged between each pair of the fixed ear seats, a rubber gasket is fixed on the inner end of each L-shaped swing arm, and the two corners of the front side of the bottom surface of the frequency modulation device are against a pair of rubber gaskets.

[0019] Preferably, a threaded hole is formed at the top end of each L-shaped swing arm, a threaded bolt is inserted into the interior of each threaded hole, a rubber clip is fixed to the inner end of each bolt, and each rubber clip rests against the side of the frequency modulation device.

[0020] Preferably, a pair of spring grooves are opened on the front side of the top surface of the bottom plate, and a tension spring is fixed inside each of the spring grooves, and the top end of each of the tension springs is fixedly connected to the inner end of the bottom surface of the L-shaped swing arm on the same side.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, the rubber material itself has good elasticity. During the operation of the frequency modulation equipment, vibrations are inevitably generated. The rubber baffle and the rubber wheel can effectively buffer these vibrations and reduce the impact of vibrations on the frequency modulation equipment. Compared with the rigid fixing method, the buffering of this rubber material can prevent the frequency modulation equipment from causing internal components to loosen and solder joints to fall off due to long-term vibrations.

[0023] 2. In the present invention, rubber materials are generally poor conductors of electricity and have certain insulation properties. During the installation process, the presence of rubber baffles and rubber wheels can reduce the interference of external electromagnetic signals on the frequency modulation equipment to a certain extent, and can also prevent the electromagnetic signals generated by the frequency modulation equipment itself from leaking out and affecting other equipment;

[0024] In summary, the present invention has a simple structure, is safe and reliable, has a wide range of applications, and can be flexibly adjusted according to the shapes and sizes of different frequency modulation devices to achieve efficient and safe fixation, thereby improving the use efficiency and reliability of the frequency modulation equipment, and achieving firm fixation of the frequency modulation equipment, while taking into account the advantages of easy installation and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall structure of the present invention (excluding the frequency modulation device);

[0028] Figure 3 For the present invention Figure 2 Schematic diagram from another perspective;

[0029] Figure 4 For the present invention Figure 2Explosion diagram of

[0030] Figure 5 For the present invention Figure 2 A right view structural cutaway diagram of ;

[0031] Serial numbers in the figure: 1. bottom plate; 2. frequency modulation device; 3. T-type plate; 4. fixed baffle; 5. rubber baffle; 6. fixed ear seat; 7. L-shaped swing arm; 8. bolt; 9. rubber clip; 10. rubber gasket; 11. tension spring; 12. U-shaped plate; 13. electric telescopic cylinder; 14. first T-type slide plate; 15. trapezoidal opening slide plate; 16. first hollow plate; 17. first connecting shaft; 18. first gear; 19. first swing arm; 20. first rubber wheel; 21. second T-type slide plate; 22. second hollow plate; 23. second connecting shaft; 24. second gear; 25. second swing arm; 26. second rubber wheel; 27. second torsion spring; 28. first torsion spring. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Embodiment 1: This embodiment provides a wind farm primary frequency regulation control protection device, see Figure 1-4 Specifically, it includes a bottom plate 1, a rectangular through hole is opened in the middle of the top surface of the bottom plate 1, a U-shaped plate 12 is fixed on the front side of the rectangular through hole, and a frequency modulation device 2 is placed on the top surface of the U-shaped plate 12;

[0034] A T-shaped plate 3 is fixedly provided at the middle of the front side edge of the top surface of the bottom plate 1, a fixed baffle 4 is fixedly provided at the top end of the T-shaped plate 3, a rubber baffle 5 is fixedly provided at the back of the fixed baffle 4, and the back of the rubber baffle 5 is against the front of the frequency modulation device 2;

[0035] A first hollow plate 16 is provided on the rear side of the top surface of the bottom plate 1 for front and rear sliding connection. A pair of first connecting shafts 17 are inserted and rotatably penetrated inside the first hollow plate 16. A first swing arm 19 is fixedly provided in the middle of each first connecting shaft 17.

[0036] A first wheel axle is rotatably inserted into the outer end of each first swing arm 19, and a first rubber wheel 20 is fixedly disposed at the upper and lower ends of each first wheel axle, and each first rubber wheel 20 abuts against the back of the frequency modulation device 2;

[0037] A pair of second hollow plates 22 are provided on both sides of the top surface of the bottom plate 1 and are slidably connected to each other. A pair of second connecting shafts 23 are rotatably inserted into each second hollow plate 22, and a second swing arm 25 is fixedly provided in the middle of each second connecting shaft 23.

[0038] A second wheel shaft is rotatably inserted into the outer end of each second swing arm 25, and a second rubber wheel 26 is fixedly provided at the upper and lower ends of each second wheel shaft, and each second rubber wheel 26 abuts against the side of the frequency modulation device 2;

[0039] The rubber surface has a certain friction force. When the two pairs of first rubber wheels 20 and the four pairs of second rubber wheels 26 are used to fix and clamp the four sides of the frequency modulation device 2, the rubber wheels are in close contact with the sides of the frequency modulation device 2. The friction force can effectively prevent the device from sliding at the installation position.

[0040] When the FM device 2 is slightly bumped or placed on a plane with a certain tilt angle, the anti-slip property can ensure that the FM device 2 remains in the correct installation position and maintain the stability of the working state of the FM device 2 .

[0041] It should be noted that: in this embodiment, the top end of each first connecting shaft 17 is sleeved with a concentrically fixed first gear 18, and a pair of first gears 18 are meshed and connected, and the upper and lower sides of each first connecting shaft 17 are sleeved with a first torsion spring 28 with one end fixedly connected, and the other end of each first torsion spring 28 is fixedly connected to the first hollow plate 16, and the two pairs of first rubber wheels 20 are against the back of the frequency modulation device 2, and drive the first swing arm 19, the first connecting shaft 17, and the first gear 18 to rotate outward along the first connecting shaft 17, driving the first torsion spring 28 to deform;

[0042] The top end of each second connecting shaft 23 is sleeved with a concentrically fixed second gear 24, and a pair of second gears 24 on the same side are meshed and connected. The upper and lower sides of each second connecting shaft 23 are sleeved with a second torsion spring 27 with one end fixedly connected, and the other end of each second torsion spring 27 is fixedly connected to the second hollow plate 22. The four pairs of second rubber wheels 26 are respectively pressed against the two sides of the frequency modulation device 2, and drive the second swing arm 25, the second connecting shaft 23, and the second gear 24 to rotate outward along the second connecting shaft 23, driving the second torsion spring 27 to deform.

[0043] Rubber is a relatively soft material. During the fixing and clamping process, the rubber baffle 5 and the rubber wheel will not cause scratches, wear and other damages to the casing of the FM device 2. This protective effect is particularly important for some FM devices 2 with sensitive casing materials or high appearance requirements.

[0044] Embodiment 2: Based on Embodiment 1, this embodiment further includes:

[0045] In the specific implementation process, Figure 3 and Figure 4As shown, a first T-shaped slide groove is provided on the rear side of the top surface of the bottom plate 1 and is distributed front and back. A first T-shaped slide plate 14 is provided inside the first T-shaped slide groove for sliding engagement. The rear end of the top surface of the first T-shaped slide plate 14 is fixedly connected to the middle of the bottom surface of the first hollow plate 16.

[0046] A through-distributed directional through hole is provided in the middle of the front side wall of the rectangular through hole, and an electric telescopic cylinder 13 with its telescopic end facing backward is installed inside the square through hole, and the end of the telescopic rod of the electric telescopic cylinder 13 is fixedly connected to the front front end of the first T-shaped slide plate 14. Under the telescopic action of the electric telescopic cylinder 13, the telescopic rod of the electric telescopic cylinder 13 is shortened, driving the first T-shaped slide plate 14, the trapezoidal opening slide plate 15, and the first hollow plate 16 to slide forward along the first T-shaped slide groove;

[0047] A pair of symmetrically distributed second T-shaped slide grooves are provided on the left and right sides of the top surface of the bottom plate 1, and a second T-shaped slide plate 21 is slidably engaged inside each second T-shaped slide groove, and the outer end of the top surface of each second T-shaped slide plate 21 is fixedly connected to the middle part of the bottom surface of the second hollow plate 22 on the same side;

[0048] A trapezoidal opening slide 15 with an opening facing forward is fixedly disposed at the front end of the top surface of the first T-shaped slide 14, and an obliquely distributed limiting slide groove is disposed at the inner end of the top surface of each second T-shaped slide 21. The two sides of the trapezoidal opening slide 15 are slidably engaged in a pair of limiting slide grooves. The trapezoidal opening slide 15 and the pair of limiting slide grooves form a limiting effect, driving the second T-shaped slide 21 and the second hollow plate 22 to slide inward along the second slide grooves.

[0049] The design of the rubber wheel allows the frequency modulation device 2 to be relatively flexibly adjusted during installation. Unlike some rigid fixing devices, the rubber wheel can allow the frequency modulation device 2 to move within a small range to a certain extent, making it convenient for the installer to accurately install the frequency modulation device 2 to the best position.

[0050] Furthermore, when the frequency modulation device 2 needs to be maintained or repositioned later, the mobility of the rubber wheel also makes the operation easier, without the need for complicated disassembly and reinstallation processes.

[0051] Embodiment 3: Based on Embodiment 2, this embodiment further includes:

[0052] In the specific implementation process, Figure 2 and Figure 4 As shown, two pairs of symmetrically distributed fixed ear seats 6 are fixed on the front side of the top of the bottom plate 1, and an L-shaped swing arm 7 is hinged between each pair of fixed ear seats 6. A rubber gasket 10 is fixed on the inner end of each L-shaped swing arm 7. The two corners of the front side of the bottom of the frequency modulation device 2 are against the pair of rubber gaskets 10, driving the L-shaped swing arm 7 to swing inward along the fixed ear seats 6, and driving the tension spring 11 to compress and deform;

[0053] A threaded hole is formed at the top of each L-shaped swing arm 7, a threaded bolt 8 is inserted into each threaded hole, a rubber clip 9 is fixed to the inner end of each bolt 8, each rubber clip 9 is pressed against the side of the frequency modulation device 2, and the rotating bolt 8 drives the rubber clip 9 to press against the frequency modulation device 2;

[0054] A pair of spring grooves are provided on the front side of the top surface of the bottom plate 1, and a tension spring 11 is fixedly arranged inside each spring groove. The top end of each tension spring 11 is fixedly connected to the bottom inner end of the L-shaped swing arm 7 on the same side.

[0055] Specifically, the working principle and operation method of the present invention are as follows:

[0056] Step 1: Place the frequency modulation device 2 on the U-shaped plate 12 in the center, so that the front of the frequency modulation device 2 is against the rubber baffle 5, and the two corners of the bottom front side of the frequency modulation device 2 are against a pair of rubber gaskets 10, driving the L-shaped swing arm 7 to swing inward along the fixed ear seat 6, and driving the tension spring 11 to compress and deform;

[0057] Step 2: Under the telescopic action of the electric telescopic cylinder 13, the telescopic rod of the electric telescopic cylinder 13 is shortened, driving the first T-shaped slide plate 14, the trapezoidal opening slide plate 15, and the first hollow plate 16 to slide forward along the first T-shaped slide groove, driving the two pairs of first rubber wheels 20 to abut against the back of the frequency modulation device 2, and driving the first swing arm 19, the first connecting shaft 17, and the first gear 18 to rotate outward along the first connecting shaft 17, driving the first torsion spring 28 to deform;

[0058] Step 3: The trapezoidal opening slide plate 15 and a pair of limiting slide grooves form a limiting effect, driving the second T-shaped slide plate 21 and the second hollow plate 22 to slide inward along the second slide groove, and driving the four pairs of second rubber wheels 26 to respectively abut on both sides of the frequency modulation device 2, and driving the second swing arm 25, the second connecting shaft 23, and the second gear 24 to rotate outward along the second connecting shaft 23, driving the second torsion spring 27 to deform;

[0059] Step 4: Use the rubber baffle 5, two pairs of first rubber wheels 20, and four pairs of second rubber wheels 26 to firmly fix the four sides of the frequency modulation device 2, and then rotate the bolt 8 to drive the rubber clip 9 to press against the frequency modulation device 2, thereby completing the installation of the frequency modulation device 2.

[0060] The present invention has a simple structure, is safe and reliable, and has a wide range of applications. It can be flexibly adjusted according to the shapes and sizes of different frequency modulation devices 2 to achieve efficient and safe fixation, thereby improving the use efficiency and reliability of the frequency modulation device 2, and achieving firm fixation of the frequency modulation device 2, while taking into account the advantages of easy installation and convenient operation.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A primary frequency regulation control and protection device for a wind farm, comprising a base plate (1), characterized in that: A rectangular through hole is provided in the middle of the top surface of the bottom plate (1), a U-shaped plate (12) is fixedly provided on the front side of the rectangular through hole, and a frequency modulation device (2) is placed on the top surface of the U-shaped plate (12); A T-shaped plate (3) is fixedly provided at the middle of the front side edge of the top face of the bottom plate (1), a fixed baffle (4) is fixedly provided at the top end of the T-shaped plate (3), a rubber baffle (5) is fixedly provided at the back of the fixed baffle (4), and the back of the rubber baffle (5) abuts against the front face of the frequency modulation device (2); A first hollow plate (16) is provided on the rear side of the top surface of the bottom plate (1) and is slidably connected to the front and rear sides. A pair of first connecting shafts (17) are rotatably inserted into the interior of the first hollow plate (16) and are distributed through the first connecting shaft (17). A first swing arm (19) is fixedly provided in the middle of each first connecting shaft (17); A first wheel axle is rotatably inserted into the outer end of each first swing arm (19), and a first rubber wheel (20) is fixedly provided at the upper and lower ends of each first wheel axle, and each first rubber wheel (20) abuts against the back of the frequency modulation device (2); A pair of second hollow plates (22) connected in a front-rear sliding manner are provided on both sides of the top surface of the bottom plate (1); a pair of second connecting shafts (23) are rotatably inserted into the interior of each of the second hollow plates (22); and a second swing arm (25) is fixedly provided in the middle of each of the second connecting shafts (23); A second wheel axle is rotatably inserted into the outer end of each second swing arm (25), and a second rubber wheel (26) is fixedly provided at the upper and lower ends of each second wheel axle, and each second rubber wheel (26) abuts against the side of the frequency modulation device (2).

2. A wind farm primary frequency regulation control and protection device according to claim 1, characterized in that: A first T-shaped slide groove is provided on the rear side of the top surface of the bottom plate (1) and is distributed front to back. A first T-shaped slide plate (14) is slidably engaged inside the first T-shaped slide groove. The rear end of the top surface of the first T-shaped slide plate (14) is fixedly connected to the middle of the bottom surface of the first hollow plate (16).

3. A wind farm primary frequency regulation control and protection device according to claim 2, characterized in that: A directional through hole is provided in the middle of the front side wall of the rectangular through hole, and an electric telescopic cylinder (13) with a telescopic end facing backward is installed inside the square through hole, and the end of the telescopic rod of the electric telescopic cylinder (13) is fixedly connected to the front end of the first T-shaped slide plate (14).

4. A wind farm primary frequency regulation control and protection device according to claim 3, characterized in that: The top end of each first connecting shaft (17) is sleeved with a concentrically fixed first gear (18), and a pair of first gears (18) are meshingly connected. The upper and lower sides of each first connecting shaft (17) are sleeved with a first torsion spring (28) with one end fixedly connected, and the other end of each first torsion spring (28) is fixedly connected to the first hollow plate (16).

5. A wind farm primary frequency regulation control and protection device according to claim 4, characterized in that: A pair of symmetrically distributed second T-shaped slide grooves are provided on the left and right sides of the top surface of the bottom plate (1), and a second T-shaped slide plate (21) is slidably engaged inside each of the second T-shaped slide grooves, and the outer end of the top surface of each second T-shaped slide plate (21) is fixedly connected to the middle part of the bottom surface of the second hollow plate (22) on the same side.

6. A wind farm primary frequency regulation control and protection device according to claim 5, characterized in that: The top end of each second connecting shaft (23) is sleeved with a concentrically fixed second gear (24), and a pair of second gears (24) located on the same side are meshingly connected. The upper and lower sides of each second connecting shaft (23) are sleeved with a second torsion spring (27) with one end fixedly connected, and the other end of each second torsion spring (27) is fixedly connected to the second hollow plate (22).

7. A wind farm primary frequency regulation control and protection device according to claim 6, characterized in that: A trapezoidal opening slide plate (15) with its opening facing forward is fixedly provided at the front end of the top surface of the first T-shaped slide plate (14), and an obliquely distributed limiting slide groove is provided at the inner end of the top surface of each second T-shaped slide plate (21), and the two sides of the trapezoidal opening slide plate (15) are slidably engaged in a pair of limiting slide grooves.

8. A wind farm primary frequency regulation control and protection device according to claim 7, characterized in that: Two pairs of symmetrically distributed fixed ear seats (6) are fixedly provided on the front side of the top of the bottom plate (1), an L-shaped swing arm (7) is hingedly provided between each pair of the fixed ear seats (6), a rubber gasket (10) is fixedly provided on the inner end of each L-shaped swing arm (7), and two corners of the front side of the bottom of the frequency modulation device (2) are against the pair of rubber gaskets (10).

9. A wind farm primary frequency regulation control and protection device according to claim 8, characterized in that: A threaded hole is provided at the top end of each L-shaped swing arm (7), a threaded bolt (8) is inserted into the interior of each threaded hole, a rubber clip (9) is fixed to the inner end of each bolt (8), and each rubber clip (9) abuts against the side of the frequency modulation device (2).

10. A wind farm primary frequency regulation control and protection device according to claim 9, characterized in that: A pair of spring grooves are provided on the front side of the top surface of the bottom plate (1), a tension spring (11) is fixedly arranged inside each of the spring grooves, and the top end of each of the tension springs (11) is fixedly connected to the bottom inner end of the L-shaped swing arm (7) on the same side.

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