CN219570262U

CN219570262U - Power grid impact protection mechanism of wind driven generator

Info

Publication number: CN219570262U
Application number: CN202320147698.4U
Authority: CN
Inventors: 冯汝明; 邢立新; 高晨; 阿敏夫; 菅旭生; 杨再欣
Original assignee: Inner Mongolia Electric Power Research Institute of Inner Mongolia Power Group Co Ltd
Current assignee: Inner Mongolia Electric Power Research Institute of Inner Mongolia Power Group Co Ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-08-22
Anticipated expiration: 2033-02-08

Abstract

The utility model discloses a power grid impact protection mechanism of a wind driven generator, which belongs to the technical field of power grid impact protection and comprises the following components: protection machanism body and installation mechanism, protection machanism body rear end face is close to the equal fixed spring groove of having seted up in four in the department of four corners, all fixedly seted up the spout on the inner wall about the spring groove, fixedly connected with slide bar between the inner wall of spout both sides, the slider has been slided and cup jointed on the slide bar, the connecting plate has been cup jointed to the spring inslot activity, fixedly connected with buffer spring and installation cardboard respectively on the outer wall around the connecting plate, protection machanism body rear end is close to the equal fixedly connected with a plurality of damping spring shock absorbers in four corners department. Therefore, the power grid impact protection mechanism of the wind driven generator can realize the capability of protecting power grid impact, is convenient and rapid to assemble and disassemble, is convenient for related personnel to overhaul, has the advantages of shock absorption and buffering, and has practicability.

Description

Power grid impact protection mechanism of wind driven generator

Technical Field

The utility model relates to a power grid impact protection mechanism, in particular to a power grid impact protection mechanism of a wind driven generator, and belongs to the technical field of power grid impact protection.

Background

The wind driven generator is an electric power device which converts wind energy into mechanical work and drives a rotor to rotate and finally outputs alternating current. The wind driven generator generally comprises wind wheels, a generator (comprising a device), a direction regulator (tail wing), a tower, a speed limiting safety mechanism, an energy storage device and the like.

The working principle of the wind driven generator is simple, the wind wheel rotates under the action of wind force, the kinetic energy of wind is converted into mechanical energy of the wind wheel shaft, and the generator rotates to generate electricity under the drive of the wind wheel shaft. In a broad sense, wind energy is also solar energy, so it can be said that a wind power generator is a heat energy utilization generator using the sun as a heat source and using the atmosphere as a working medium.

In the existing wind power generation equipment, surge current is easy to occur under a high-power state to damage the power supply stability, so that the power equipment faces severe impact load, and therefore, an improved power grid impact protection mechanism of a wind power generator is provided.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a power grid impact protection mechanism of a wind driven generator, which can realize the capability of protecting power grid impact, is convenient and quick to assemble and disassemble, is convenient for related personnel to overhaul, has the advantages of shock absorption and buffering, and solves the problem that the power supply stability is damaged by surge current easily to cause the power equipment to face severe impact load in the high-power state of the power generation equipment in the prior art.

In order to solve the problems, the following technical scheme is provided:

the utility model provides a wind-driven generator's electric wire netting impact protection mechanism, includes protection mechanism body and installation mechanism, protection mechanism body rear end face is close to four corners department and all has fixedly seted up the spring groove, four on the spring groove upper and lower inner wall all fixedly set up the spout, fixedly connected with slide bar between the inner wall of spout both sides, the slider has been slided and cup jointed on the slide bar, the connecting plate has been cup jointed in the spring inslot activity, fixedly connected with buffer spring and installation cardboard respectively on the outer wall around the connecting plate, protection mechanism body rear end is close to four corners department and all fixedly connected with a plurality of damping spring shock absorbers, a plurality of damping spring shock absorber rear ends fixedly connected with auxiliary fixed plate, protection mechanism body inner fixedly is provided with high-voltage reactance, dc-to-ac converter, closer and compensator respectively;

the installation mechanism is close to the installation plates fixedly connected to the outer walls of the four corners, threaded grooves are fixedly formed in the installation plates, and installation grooves are fixedly formed in the installation mechanism.

Furthermore, the heat dissipation windows are fixedly arranged on two sides of the protection mechanism body.

Further, the sliding block is fixedly connected to the outer wall of the connecting plate.

Further, the installation clamping plate and the installation groove are mutually clamped.

Further, the auxiliary fixing plate is attached to the mounting mechanism.

Further, the closer and the compensator are electrically connected with the high-voltage reactance, and the inverter and the compensator are electrically connected.

Compared with the prior art, the utility model has the beneficial effects that: the device realizes the function of improving the stability of the power system by a device protection mechanism and installing a high-voltage reactance, an inverter, a closer and a compensator in the mechanism, thereby playing an effective role in protecting the impact of a power grid;

compared with the prior art, the utility model has the beneficial effects that: the protection mechanism in the device can be convenient to install the installation mechanism in a quick connection way through the installation clamping plate clamping installation groove, so that a later-period maintainer can conveniently take down the protection mechanism to overhaul and maintain the internal element, and meanwhile, the protection mechanism can mechanically buffer the installation mechanism relatively, and the internal element of the protection mechanism can be buffered and protected when the wind driven generator vibrates.

Specific embodiments of the utility model are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not limited in scope thereby. The embodiments of the utility model include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of a door opening structure of a protection mechanism body of a preferred embodiment of a grid impact protection mechanism of a wind turbine according to the present utility model;

FIG. 2 is a schematic side sectional view of a part of a preferred embodiment of a grid impact protection mechanism for a wind turbine according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure shown in FIG. 2A;

fig. 4 is a schematic structural view of a mounting mechanism of a preferred embodiment of a grid impact protection mechanism of a wind power generator according to the present utility model.

In the figure: 1. a protection mechanism body; 2. a mounting mechanism; 3. a mounting plate; 4. a thread groove;

5. a mounting groove; 6. a spring groove; 7. a chute; 8. a slide bar; 9. a slide block; 10. a connecting plate; 11. installing a clamping plate; 12. a buffer spring; 13. damping spring shock absorber; 14. an auxiliary fixing plate; 15. sealing the door; 16. a door handle; 17. a heat radiation window; 18. a high voltage reactance;

19. an inverter; 20. a closer; 21. and a compensator.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-4, the power grid impact protection mechanism of the wind driven generator provided by the embodiment comprises a protection mechanism body 1 and a mounting mechanism 2, wherein spring grooves 6 are fixedly formed in the positions, close to four corners, of the rear end face of the protection mechanism body 1, sliding grooves 7 are fixedly formed in the upper inner wall and the lower inner wall of each of the four spring grooves 6, sliding rods 8 are fixedly connected between the inner walls of the two sides of each sliding groove 7, sliding blocks 9 are sleeved on the sliding rods 8 in a sliding manner, connecting plates 10 are movably sleeved in the spring grooves 6, buffer springs 12 and mounting clamping plates 11 are respectively fixedly connected to the front outer wall and the rear outer wall of each connecting plate 10, a plurality of damping spring shock absorbers 13 are fixedly connected to the positions, close to the four corners, of the rear end of each damping spring shock absorber 13 is fixedly connected with an auxiliary fixing plate 14, and high-voltage reactors 18, inverters 19, a closer 20 and compensators 21 are respectively fixedly arranged at the inner ends of the protection mechanism body 1.

The installation mechanism 2 is close to the equal fixedly connected with mounting panel 3 on the four corners outer wall, has all fixedly seted up thread groove 4 on four mounting panels 3, has fixedly seted up mounting groove 5 on the installation mechanism 2.

Preferably, the two sides of the protection mechanism body 1 are fixedly provided with radiating windows 17, and the window leaves are downward and have a dustproof effect.

Preferably, the front end face of the protection mechanism body 1 is rotatably connected with a sealing door 15, the outer wall of the sealing door 15 is fixedly connected with a door handle 16, and the sealing door 15 is conveniently opened and closed through the door handle 16.

Preferably, the slide 9 is fixedly connected to the outer wall of the connecting plate 10.

Preferably, the installation clamping plate 11 and the installation groove 5 are mutually clamped, and the protection mechanism body 1 can be conveniently and quickly assembled on the installation mechanism 2 by utilizing the mutual clamping of the installation clamping plate 11 and the installation groove 5.

Preferably, the auxiliary fixing plate 14 is attached to the mounting mechanism 2.

Preferably, the closer 20 and the compensator 21 are electrically connected with the high-voltage reactance 18, the inverter 19 and the compensator 21 are electrically connected, according to the prior art, two ends of the high-voltage reactance 18 are respectively electrically connected with the closer 20 and the compensator 21, so that the same frequency and the same phase with the system side voltage are kept, the property of output power is determined by adjusting the relation between the output power and the system voltage amplitude, and when the amplitude is larger than the system side voltage amplitude, capacitive reactive power is output, and when the amplitude is smaller than the system side voltage amplitude, inductive reactive power is output, so that the purpose of stabilizing the power system is achieved.

The application principle and the application flow of the utility model are as follows:

during installation, the installation mechanism 2 is fixed through the bolt penetrating through the thread groove 4, then the installation clamping plate 11 is clamped in the installation groove 5, the protection mechanism body 1 is rapidly fixed on the installation mechanism 2, and then the purposes of stabilizing the power system, increasing system damping and improving voltage transmission capacity are achieved through the high-voltage reactor 18, the inverter 19, the closer 20 and the compensator 21.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to specific circumstances.

While the utility model has been described in connection with specific embodiments, it will be apparent to those skilled in the art that the description is intended to be illustrative and not limiting in scope. Various modifications and alterations of this utility model will occur to those skilled in the art in light of the spirit and principles of this utility model, and such modifications and alterations are also within the scope of this utility model.

Claims

1. The utility model provides a power grid impact protection mechanism of aerogenerator, its characterized in that includes protection mechanism body (1) and installation mechanism (2), protection mechanism body (1) rear end face is close to four corners department and all has fixedly seted up spring groove (6), four on the upper and lower inner wall of spring groove (6) all have fixedly set up spout (7), fixedly connected with slide bar (8) between the inner wall of spout (7) both sides, slide bar (8) go up to slide and cup joint slider (9), connecting plate (10) have been cup jointed in the spring groove (6) activity, respectively fixedly connected with buffer spring (12) and installation cardboard (11) on the outer wall around connecting plate (10), a plurality of damping spring shock absorbers (13) are all fixedly connected with in protection mechanism body (1) rear end near four corners department, a plurality of damping spring shock absorbers (13) rear end fixedly connected with auxiliary fixed plate (14), protection mechanism body (1) inner is fixedly provided with high-voltage reactance (18), dc-to-ac converter (19), closer (20) and compensator (21) respectively;

the mounting mechanism (2) is close to the four corners and is fixedly connected with the mounting plates (3), the four mounting plates (3) are fixedly provided with screw grooves (4), and the mounting mechanism (2) is fixedly provided with mounting grooves (5).

2. The power grid impact protection mechanism of a wind driven generator according to claim 1, wherein the two sides of the protection mechanism body (1) are fixedly provided with radiating windows (17).

3. The power grid impact protection mechanism of a wind driven generator according to claim 1, wherein a sealing door (15) is rotatably connected to the front end face of the protection mechanism body (1), and a door handle (16) is fixedly connected to the outer wall of the sealing door (15).

4. Grid impact protection mechanism for wind power generator according to claim 1, characterized in that the slide block (9) is fixedly connected to the outer wall of the connecting plate (10).

5. Grid impact protection mechanism for a wind power generator according to claim 1, characterized in that the mounting clip (11) and the mounting groove (5) are engaged with each other.

6. Grid impact protection mechanism for a wind power generator according to claim 1, characterized in that the auxiliary fixing plate (14) is arranged in a fitting manner with the mounting mechanism (2).

7. Grid impact protection mechanism for a wind power generator according to claim 1, characterized in that the closer (20) and the compensator (21) are both electrically connected with the high voltage reactance (18), and the inverter (19) and the compensator (21) are electrically connected.