CN213027873U

CN213027873U - Wind-powered electricity generation field fan diesel generator of driftage group builds pressure control device

Info

Publication number: CN213027873U
Application number: CN202022283402.0U
Authority: CN
Inventors: 陈劲华
Original assignee: Shaanxi Voda Power Equipment Manufacture Co ltd
Current assignee: Shaanxi Voda Power Equipment Manufacture Co ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-04-20
Anticipated expiration: 2030-10-14

Abstract

The utility model discloses a wind power plant fan yawing diesel generator set building pressure control device, which comprises a generator set and a heat dissipation net, wherein a controller is arranged on the surface of the generator set; the generating set surface is kept away from one side of controller and is installed closing relay, generating set side fixedly connected with protective housing, protective housing internal connection has the output circuit breaker, output circuit breaker one side is provided with excitation relay, excitation relay surface is connected with the excitation button. According to the wind power plant fan yaw diesel generator set voltage control device, an excitation button is pressed, the power input from a permanent magnet exciter PMG to a voltage regulator DVR is switched on through an excitation relay, the generator set achieves a soft start function, the voltage smoothly rises to a rated voltage within a set voltage building time to supply power to a wind power generation yaw system, the voltage building time of the generator set is controlled to be about 10s, the transient effect of the system can be avoided to the maximum extent, and the safety of wind power plant system equipment when the generator is put into use is guaranteed.

Description

Wind-powered electricity generation field fan diesel generator of driftage group builds pressure control device

Technical Field

The utility model relates to a generating set technical field specifically is a wind-powered electricity generation field fan driftage diesel generator group builds pressure control device.

Background

The main functions of the fan yaw system are two: one is that the wind generator is matched with a control system of the wind generating set, the wind direction position of the whole engine room is adjusted, and the wind wheel is automatically aligned to the wind direction according to the sensing detection of the anemoscope and the vane indicator, so that the generating efficiency of the wind generating set is improved; and the other is to provide necessary locking torque to ensure the safe operation of the wind generating set.

Typhoon activity is frequent, in order to guarantee the normal driftage function of fan when typhoon activity, reduces the harm of typhoon to the fan, wind-powered electricity generation field can be equipped with fan driftage standby emergency power source. Because the system circuit is longer during the yaw of wind power plant, and there is a large amount of step-up transformer load in the rear end simultaneously, in order to reduce the influence to system stability in the twinkling of an eye that emergency power source puts into to high voltage power supply line, need the generating set zero to build the pressure, build the pressure process and be no less than 10s, avoid the transient state effect of system.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wind-powered electricity generation field fan diesel generator group build pressure controlling means that drifts away to solve that above-mentioned background art proposes because the wind-powered electricity generation plant system line is longer when yawing, and the rear end has a large amount of step up transformer loads simultaneously, for reducing emergency power source to the high voltage power supply line drop-in influence to system stability in the twinkling of an eye, needs zero set-up of generating set to build the pressure, builds the pressure process and is no less than 10s, avoids the problem of the transient state effect of system.

In order to achieve the above object, the utility model provides a following technical scheme: a wind power plant fan yaw diesel generator set voltage control device comprises a generator set and a heat dissipation network, wherein a controller is arranged on the surface of the generator set;

a closing relay is mounted on one side of the surface of the generator set, which is far away from the controller, a protection box is fixedly connected to the side surface of the generator set, an output circuit breaker is connected to the interior of the protection box, an excitation relay is arranged on one side of the output circuit breaker, and an excitation button is connected to the surface of the excitation relay;

the protection box is characterized in that a voltage regulator DVR is installed on one side, far away from the protection box, of the generator set, a permanent magnet exciter PMG is arranged on one side of the voltage regulator DVR, the generator set is fixedly connected to one side of the permanent magnet exciter PMG, the protection box is arranged on one side of the permanent magnet exciter PMG, and the generator set is connected to one side of the heat dissipation net.

Preferably, the controller and the closing relay are both arranged at the same horizontal position on the surface of the generator set, and the controller and the closing relay are symmetrical with each other in the longitudinal direction of the generator set.

Preferably, the excitation relay and the excitation button are both arranged in the protection box, and the included angle of the connection part of the protection box and the generator set is mutually vertical.

Preferably, the voltage regulator DVR, the permanent magnet exciter PMG and the protective box are all installed on the side face of the generator set, the transverse middle branch line of the voltage regulator DVR and the transverse middle branch line of the protective box are located at the same position, and the permanent magnet exciter PMG is arranged at the bottom of the longitudinal middle branch line between the voltage regulator DVR and the protective box.

Preferably, the radiator mesh is insulating material, and the radiator mesh surface evenly is provided with two sets of net holes to structure as an organic whole between radiator mesh and the generating set.

Preferably, the side surface of the permanent magnet exciter PMG is rectangular and trapezoidal, and the maximum transverse vertical lengths of the side surfaces of the permanent magnet exciter PMG and the protection box are the same.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the wind power plant fan yaw diesel generator set voltage control device needs to be used, the generator set is started through the controller, the motor does not generate electricity at this time, the controller sends a signal to switch on the switch-on relay and the output breaker, and the generator set is started with loads such as a wind power system transformer and a line in a zero-voltage state.

2. According to the wind power plant fan yaw diesel generator set voltage control device, when a generator set reaches a rated rotating speed, an excitation button is pressed down, a permanent magnet exciter PMG is connected to power input of a voltage regulator DVR through an excitation relay, the generator set achieves a soft start function, the voltage smoothly rises to the rated voltage within set voltage building time to supply power to a wind power generation yaw system, the voltage building time of the generator set is controlled to be about 10s, the transient effect of the system can be avoided to the maximum extent, the influence on the system stability is reduced, and the safety of wind power plant system equipment when the generator is put into use is guaranteed.

3. Before the wind power plant fan yaw diesel generator set voltage control device generator set is started, the voltage build time of a voltage generation regulator DVR is preset through software, and the setting is only carried out once, and the power input from a permanent magnet exciter PMG to the voltage regulator DVR is disconnected.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic view of the system of the present invention.

In the figure: 1. a generator set; 2. a controller; 3. a switching-on relay; 4. an output breaker; 5. an excitation relay; 6. an excitation button; 7. a voltage regulator DVR; 8. a permanent magnet exciter PMG; 9. a protective box; 10. a heat-dissipating network.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a wind power plant fan yaw diesel generator set voltage control device comprises a generator set 1, a controller 2, a closing relay 3, an output circuit breaker 4, an excitation relay 5, an excitation button 6, a voltage regulator DVR7, a permanent magnet exciter PMG8, a protection box 9 and a heat dissipation net 10, wherein the controller 2 is installed on the surface of the generator set 1, the controller 2 and the closing relay 3 are installed on the same horizontal position on the surface of the generator set 1, the controller 2 and the closing relay 3 are longitudinally symmetrical with each other with respect to the generator set 1, the controller 2 sends signals to the closing relay 3 and the output circuit breaker 4 to close, and the generator set 1 starts loads such as a transformer and a circuit of a wind power system in a zero-voltage state;

a closing relay 3 is installed on one side, away from a controller 2, of the surface of the generator set 1, a protection box 9 is fixedly connected to the side face of the generator set 1, an output circuit breaker 4 is connected to the interior of the protection box 9, an excitation relay 5 is arranged on one side of the output circuit breaker 4, the excitation relay 5 and an excitation button 6 are both installed in the protection box 9, an included angle between the connection position of the protection box 9 and the generator set 1 is perpendicular to each other, the excitation button 6 is pressed down, the power input from a permanent magnet exciter PMG8 to a voltage regulator DVR7 is switched on through the excitation relay 5, the generator set 1 achieves a soft start function, and the excitation button 6 is connected to the surface;

the side, far away from a protection box 9, of the generator set 1 is provided with a voltage regulator DVR7, the voltage regulator DVR7, a permanent magnet exciter PMG8 and the protection box 9 are all arranged on the side face of the generator set 1, a transverse middle branch line of the voltage regulator DVR7 and the protection box 9 is located at the same position, a permanent magnet exciter PMG8 is arranged at the bottom of the longitudinal middle branch line between the voltage regulator DVR7 and the protection box 9, the power input from the permanent magnet exciter PMG8 to the voltage regulator DVR7 is switched on through an excitation relay 5, the voltage is smoothly increased to a rated voltage within the set voltage build-up time to supply power to a wind power generation yaw system, the voltage build-up time of the generator set 1 is controlled to be about 10s, the transient effect of the system can be avoided to the maximum extent, the influence on the stability of the system is reduced, one side of the voltage regulator DVR7 is provided with a permanent magnet exciter PMG8, the side face of, and the biggest horizontal vertical length in permanent magnet exciter PMG8 and guard box 9 side is the same, makes the connection between the generator set 1 of permanent magnet exciter PMG8 more firm like this to hoisting device's stability, permanent magnet exciter PMG8 one side fixedly connected with generator set 1, permanent magnet exciter PMG8 one side sets up guard box 9, radiator grid 10 one side is connected with generator set 1, radiator grid 10 is insulating material, and radiator grid 10 surface evenly is provided with two sets of net holes to structure as an organic whole between radiator grid 10 and the generator set 1, the heat that generator set 1 inside produced just can be timely outwards discharged through radiator grid 10 like this, and the inside temperature of guarantee generator set 1 can not be too high.

The working principle is as follows: when the wind power plant fan yaw diesel generator set voltage control device is used, firstly, when the wind power plant fan yaw diesel generator set voltage control device is required to be used, the generator set 1 is started through the controller 2, the motor does not generate electricity, the controller 2 sends a signal to the closing relay 3 and the output breaker 4 to be closed, the generator set 1 starts loads such as a transformer, a circuit and the like of a wind power system in a zero voltage state, when the generator set 1 reaches a rated rotating speed, the excitation button 6 is pressed down, the power input from the permanent magnet exciter PMG8 to the voltage regulator DVR7 is switched on through the excitation relay 5, the generator set 1 realizes a soft start function, the voltage smoothly rises to the rated voltage within the set voltage building time to supply power to the wind power generation yaw system, the voltage building time of the generator set 1 is controlled to be about 10s, the transient effect of the system can be avoided to the maximum extent, the influence on the system stability is, in addition, the voltage build-up time of the generating voltage regulator DVR7 is preset through software before the generator set 1 is started, and the power input from the permanent magnet exciter PMG8 to the voltage regulator DVR7 can be cut off once, which is the characteristic of the wind farm fan yaw diesel generator set voltage build-up control device, and the content which is not described in detail in the description belongs to the prior art which is well known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a wind-powered electricity generation field fan driftage diesel generator group builds pressure control device, includes generating set (1) and radiator-grid (10), its characterized in that: the surface of the generator set (1) is provided with a controller (2);

a closing relay (3) is mounted on one side, away from the controller (2), of the surface of the generator set (1), a protective box (9) is fixedly connected to the side surface of the generator set (1), an output circuit breaker (4) is connected to the interior of the protective box (9), an excitation relay (5) is arranged on one side of the output circuit breaker (4), and an excitation button (6) is connected to the surface of the excitation relay (5);

the generator set is characterized in that a voltage regulator DVR (7) is installed on one side, far away from a protection box (9), of the generator set (1), a permanent magnet exciter PMG (8) is arranged on one side of the voltage regulator DVR (7), the generator set (1) is fixedly connected to one side of the permanent magnet exciter PMG (8), the protection box (9) is arranged on one side of the permanent magnet exciter PMG (8), and the generator set (1) is connected to one side of a heat dissipation net (10).

2. The wind farm fan yaw diesel generator set building pressure control device according to claim 1, characterized in that: the controller (2) and the closing relay (3) are both installed on the same horizontal position of the surface of the generator set (1), and the controller (2) and the closing relay (3) are longitudinally symmetrical with each other in a split mode relative to the generator set (1).

3. The wind farm fan yaw diesel generator set building pressure control device according to claim 1, characterized in that: excitation relay (5) and excitation button (6) all install in the inside of guard box (9), and the contained angle mutually perpendicular of guard box (9) and generating set (1) junction.

4. The wind farm fan yaw diesel generator set building pressure control device according to claim 1, characterized in that: the voltage regulator DVR (7), the permanent magnet exciter PMG (8) and the protective box (9) are all installed on the side face of the generator set (1), the transverse middle branch line of the voltage regulator DVR (7) and the transverse middle branch line of the protective box (9) are located at the same position, and the permanent magnet exciter PMG (8) is arranged at the bottom of the longitudinal middle branch line between the voltage regulator DVR (7) and the protective box (9).

5. The wind farm fan yaw diesel generator set building pressure control device according to claim 1, characterized in that: the heat dissipation net (10) is made of an insulating material, two groups of grid holes are uniformly formed in the surface of the heat dissipation net (10), and the heat dissipation net (10) and the generator set (1) are of an integrated structure.

6. The wind farm fan yaw diesel generator set building pressure control device according to claim 1, characterized in that: the side surface of the permanent magnet exciter PMG (8) is rectangular and trapezoidal, and the maximum transverse vertical lengths of the side surfaces of the permanent magnet exciter PMG (8) and the protection box (9) are the same.