CN109611293B

CN109611293B - Radiator control system, radiator assembly, control method and wind generating set

Info

Publication number: CN109611293B
Application number: CN201811639327.8A
Authority: CN
Inventors: 沈星星; 张竹; 杨勇
Original assignee: Fujian Goldwind Technology Co ltd
Current assignee: Fujian Goldwind Technology Co ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2020-11-24
Anticipated expiration: 2038-12-29
Also published as: CN109611293A

Abstract

The invention provides a radiator control system, a radiator assembly, a control method and a wind generating set. The radiator control system comprises a driving unit, wherein the driving unit is used for driving a radiator which is rotatably arranged on a cabin cover of the wind generating set to rotate, so that the windward area of the radiator is adjusted. The invention can reduce the contact area between the radiator and the wind, so that the radiator arranged on the cabin cover can resist the typhoon and is not damaged by the typhoon.

Description

Radiator control system, radiator assembly, control method and wind generating set

Technical Field

The invention relates to the technical field of wind power generation, in particular to a radiator control system, a radiator assembly, a wind generating set comprising the radiator assembly and a method for controlling the radiator assembly.

Background

For future offshore wind generating sets, in order to reduce installation cost of the wind generating sets and reduce sea area, the capacity of a single offshore wind generating set is gradually increased, and future large megawatt units (for example, 8MW and 10MW units) become the mainstream of the offshore wind generating sets.

When a large megawatt unit is designed, the converter and radiator in the unit is more and more integrated, and meanwhile, the electric cabinet body is arranged in the engine room, and the converter and radiator is arranged at the top of the engine room. In coastal areas, wind power plants are often interfered by typhoons, the converter radiator arranged at the top of the cabin has a large windward area, and the converter radiator can be blown away and damaged by the typhoons when encountering large typhoons.

Disclosure of Invention

In view of the deficiencies in the prior art, it is an object of the present invention to address one or more of the problems in the prior art as set forth above. For example, it is an object of the present invention to provide a radiator assembly arranged on a nacelle cover and capable of resisting typhoons without being damaged by the typhoons.

According to an aspect of the present invention, there is provided a radiator control system including a driving unit for driving a radiator rotatably mounted on a nacelle cover of a wind turbine generator set to rotate, thereby adjusting a windward area of the radiator.

Optionally, the radiator control system may include: the wind measuring unit is used for measuring wind speed and wind direction; and the control unit is used for determining whether the orientation of the radiator needs to be adjusted or not according to the wind speed measured by the wind measuring unit, and controlling the driving unit to rotate the radiator according to the wind direction measured by the wind measuring unit when the wind speed exceeds a preset value so as to adjust the windward area of the radiator. Through the improvement, the automatic control of the rotation of the radiator can be realized.

Alternatively, the driving unit may include: the worm wheel is fixedly connected with the radiator; a worm engaged with the worm wheel; and the motor is used for driving the worm to rotate.

Optionally, the driving unit may further include a bearing, a moving coil of the bearing is used for being fixedly connected with the worm wheel, and a fixed coil of the bearing is used for being fixedly connected with the nacelle cover; the radiator comprises a connecting shaft, and the connecting shaft is fixedly connected with the worm wheel; the worm wheel is provided with a clamping mechanism which is used for clamping the connecting shaft on the worm wheel.

Optionally, the driving unit may further include a bearing, the heat sink includes a connecting shaft, a moving coil of the bearing is used for being fixedly connected with the connecting shaft, and a fixed coil of the bearing is used for being fixedly connected with the nacelle cover; the worm wheel is sleeved on the connecting shaft; the worm wheel is provided with a clamping mechanism which is used for clamping the connecting shaft on the worm wheel.

Optionally, the driving unit may further include a bearing, a moving coil of the bearing is used for being fixedly connected with the radiator, and a fixed coil of the bearing is used for being fixedly connected with the nacelle cover; the worm wheel is sleeved on the moving coil of the bearing, the worm wheel is provided with a clamping mechanism, and the clamping mechanism is used for clamping the moving coil of the bearing on the worm wheel.

Optionally, the clamping mechanism may be a three-jaw chuck, the worm wheel is provided with three grooves extending along a radial direction of the worm wheel, and the movable jaws of the three-jaw chuck are disposed in the grooves and can move along a radial inward direction of the worm wheel.

Optionally, the worm wheel may be provided with at least two grooves extending along a radius direction of the worm wheel, and the clamping mechanism may include: the at least two clamping blocks are respectively arranged in the at least two grooves; the at least two driving rods are arranged in one-to-one correspondence with the at least two clamping blocks; and the driving motor is used for driving the at least two driving rods to move along the radius direction of the worm wheel so as to drive the at least two clamping blocks to move along the radial inward direction of the worm wheel.

Optionally, the radiator control system may further include: and the manual control unit is connected with the control unit and controls the control unit to send starting and stopping commands to the motor, so that the radiator can be manually rotated when the automatic control of the rotation of the radiator fails.

Alternatively, the heat sink and the driving unit may be respectively provided in plural numbers and in one-to-one correspondence, and the plural heat sinks may be rotatable independently of each other by the driving of the corresponding driving units.

Another aspect of the invention provides a radiator assembly comprising a radiator rotatably mounted on a nacelle cover of a wind turbine generator system, the radiator assembly further comprising a radiator control system as described above.

A further aspect of the invention provides a wind park comprising a radiator assembly as described above.

A further aspect of the invention provides a method for controlling a radiator assembly comprising a radiator rotatably mounted on a nacelle cover of a wind turbine generator system and a drive unit for driving the radiator in rotation, the method comprising: acquiring the wind speed and the wind direction at the radiator; determining whether the orientation of the radiator needs to be adjusted according to the wind speed; when the wind speed exceeds a preset value, the driving unit is controlled according to the wind direction to drive the radiator to rotate, so that the windward area of the radiator is adjusted.

Alternatively, the driving unit may include: the worm wheel is fixedly connected with the radiator; a worm engaged with the worm wheel; and a motor for driving the worm to rotate; a clamping mechanism disposed on the worm gear, the method may further comprise: before the radiator is driven to rotate, the clamping mechanism is driven to clamp the radiator on the worm wheel.

Compared with the prior art, the invention has the advantages that the contact area between the radiator and wind can be reduced, so that the radiator arranged on the cabin cover can resist typhoon and is not damaged by the typhoon.

Drawings

The above and other objects and features of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic view of a radiator module according to an exemplary embodiment of the present invention mounted on a nacelle cover.

Fig. 2 is a schematic view of another angle of fig. 1.

Fig. 3A is a schematic view of yet another angle of fig. 1.

Fig. 3B is a partially enlarged view of fig. 3A.

Fig. 4A is a schematic view after the heat sink is rotated.

Fig. 4B is a partially enlarged view of fig. 4A.

Description of reference numerals:

1. the wind power generation device comprises a radiator, 1a, a connecting shaft, 2, a wind vane, 3, an anemoscope, 4, a worm wheel, 5, a driving motor, 6, a clamping block, 7, a worm, 8, a motor, 9, a control unit, 10, a manual control unit, 11, a base, 12, a groove, 13 and a cabin cover.

Detailed Description

Hereinafter, a radiator control system, a radiator assembly, a wind turbine generator set having the radiator assembly, and a method of controlling the radiator assembly according to exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.

It will be understood that the use of the terms first, second, etc. may not denote any order or importance, but rather the terms first, second, etc. may be used to distinguish one element from another.

For a wind generating set, the windward area of the blades can be minimized through the variable-pitch blades, so that the influence of typhoon on the wind generating set is reduced, but for the variable-flow heat radiator, the windward area is large, and when the typhoon comes, the windward area needs to be changed to prevent the variable-flow heat radiator from being damaged by the typhoon.

As shown in fig. 1 and 2, the radiator control system according to the exemplary embodiment of the present invention includes a driving unit for driving the radiator 1 rotatably mounted on the nacelle cover 13 of the wind turbine generator set to rotate, thereby adjusting the orientation of the radiator 1. According to the exemplary embodiment of the present invention, by adjusting the orientation of the heat sink 1, the frontal area of the heat sink 1 can be reduced, thereby preventing the heat sink 1 from being damaged by typhoon.

The radiator 1 may be a variable flow radiator, but the radiator 1 is not limited to a variable flow radiator, and may also be another external radiator mounted on the nacelle cover 13 of the wind turbine generator system.

According to an embodiment of the invention, the radiator control system may further comprise a wind measuring unit and a control unit 9.

The wind measuring unit is used for measuring wind speed and wind direction. In an embodiment, as shown in fig. 1, the anemometry unit may comprise an anemometer 3 and a wind vane 2 arranged on the nacelle cover 13 and close to the radiator 1, the anemometer 3 being used for measuring the wind speed at the radiator 1 when a typhoon comes, and the wind vane 2 being used for measuring the wind direction.

The control unit 9 is used for determining whether the orientation of the radiator 1 needs to be adjusted according to the wind speed measured by the wind measuring unit, and controlling the driving unit to rotate the radiator 1 according to the wind direction measured by the wind measuring unit when the wind speed exceeds a preset value, so as to adjust the windward area of the radiator 1. In the present embodiment, as shown in fig. 2, the control unit 9 is arranged inside the nacelle.

The drive unit may comprise a worm wheel 4, a worm 7 and a motor 8. The worm wheel 4 is fixedly connected with the radiator 1. The worm 7 and the worm wheel 4 are engaged with each other. The motor 8 is used for driving the worm 7 to rotate.

In the embodiment, the bottom of the heat sink 1 is provided with a connecting shaft 1a, and the connecting shaft 1a is fixedly connected with the worm wheel 4. Specifically, the center of the worm wheel 4 may be provided with a through hole into which the connecting shaft 1a is inserted, and the connecting shaft 1a and the through hole may be interference-fitted. However, the present invention is not limited thereto, and the connecting shaft 1a may be directly welded to the worm wheel 4. In addition, the worm wheel 4 may be rotatably connected to the nacelle cover 13 by a bearing (not shown). In particular, the worm wheel 4 may be fixedly connected with a moving coil of a bearing, the stationary coil of which is fixedly connected with the nacelle cover 13. More specifically, a base 11 is fixed to the nacelle cover as a support for the entire radiator 1. The stator ring of the bearing may be fixed relative to the nacelle cover 13 by being mounted on the base 11.

The worm 7 is provided on one side of the outer periphery of the worm wheel 4 and is in gear engagement with the worm wheel 4. One end of the worm 7 is connected with a motor 8.

According to the embodiment of the invention, the motor 8 can drive the worm 7 to rotate, the rotation of the worm 7 drives the worm wheel 4 to rotate, and the rotation of the worm wheel 4 drives the radiator 1 to rotate. However, the present invention is not limited to this, and other transmission methods such as rack and pinion, hydraulic cylinder, etc. may be adopted to drive the heat sink 1 to rotate.

Preferably, the drive unit may further comprise a clamping mechanism for clamping the heat sink 1 on the worm wheel 4. In the present embodiment, a clamping mechanism is provided on the worm wheel 4 for clamping the connecting shaft 1a at the bottom of the heat sink 1 to the worm wheel 4.

In an embodiment, as shown in fig. 3A to 4B, the worm wheel 4 is provided with at least two grooves 12 extending along a radial direction of the worm wheel 4, and the clamping mechanism may include at least two clamping blocks 6, a driving rod and a driving motor 5. At least two blocks 6 are respectively arranged in the at least two grooves 12. At least two driving rods and at least two clamping blocks 6 are arranged in one-to-one correspondence. The driving motor 5 is connected with the driving rods, and is used for driving the at least two driving rods to move along the radial direction of the worm wheel 4 so as to drive the at least two clamping blocks 6 to move along the radial inward direction of the worm wheel 4, so that the heat sink 1 is clamped through the clamping blocks 6, and specifically, the connecting shaft 1a of the heat sink 1 is clamped.

In the present embodiment, the number of the grooves 12, the latch 6, the driving lever, and the driving motor 5 is three. Three grooves 12 are arranged uniformly in the circumferential direction on the worm wheel 4. I.e. the three grooves 12 are at an angle of 120 deg. to each other. A clamping block 6, a driving rod and a motor 5 which are connected in sequence are arranged in each groove 12. The driving rod can be a screw rod or a telescopic rod as long as the driving rod can push the fixture block 6 to clamp the radiator 1 along the radial direction of the worm wheel 4 under the driving of the motor 5.

However, the present invention is not limited to this, the clamping mechanism may also be a three-jaw chuck, the worm wheel 4 is provided with three grooves 12 extending along the radial direction of the worm wheel 4, and three movable jaws of the three-jaw chuck are respectively disposed in the three grooves 12 and can move along the radial inward direction of the worm wheel 4, so as to clamp the bottom of the heat sink 1.

In the above embodiment, the worm wheel 4 is fixedly connected to the connecting shaft 1a of the radiator 1 and rotatably connected to the nacelle cover 13 through the bearing, and the clamping mechanism clamps the connecting shaft 1a to the worm wheel 4, thereby strengthening the connection between the radiator 1 and the worm wheel 4, stably transmitting the rotational driving force of the worm wheel 4 to the radiator 1, and preventing the connection between the radiator 1 and the worm wheel 4 from being damaged by an excessive torsional force when the radiator 1 rotates.

However, the present invention is not limited thereto, and in another embodiment, the driving unit may further include a bearing, the heat sink 1 is fixedly connected to a moving coil of the bearing, a fixed coil of the bearing is fixedly connected to the nacelle cover 13, the worm wheel 4 is sleeved on the moving coil of the bearing, and the clamping mechanism is disposed on the worm wheel 4 and is used for clamping the moving coil of the bearing on the worm wheel 4.

In another embodiment, the connecting shaft 1a of the heat sink 1 is fixedly connected with the moving coil of the bearing, the fixed coil of the bearing is fixedly connected with the nacelle cover 13, the worm wheel 4 is sleeved on the connecting shaft 1a of the heat sink 1, and the clamping mechanism is arranged on the worm wheel 4 and is used for clamping the connecting shaft 1a on the worm wheel 4.

As shown in fig. 1, 2, 3A, and 4A, in the present embodiment, four radiators 1, four worm wheels 4, four worms 7, and four motors 8 are provided. Each radiator 1 corresponds to a worm wheel 4, a worm 7 and a motor 8. Each motor 8 is connected to a worm 7. The rotation angle of each radiator 1 under the action of the corresponding worm wheel 4, worm 7 and motor 8 can be the same or different. The present invention is not limited thereto, and the radiators 1 and the driving units may be respectively provided in plural and in one-to-one correspondence, and the plural radiators 1 may be rotated independently of each other by the driving of the corresponding driving units at the same or different rotation angles, so that the rotation of each radiator 1 may be individually controlled. The rotation angle and the rotation direction of the worm 7 are controlled by controlling the motor 8, so that the rotation angle of the worm wheel 4 can be controlled, and the rotation angle and the direction of the radiator 1 can be controlled.

According to an embodiment of the present invention, there is also provided a radiator assembly, which may comprise a radiator 1 and a radiator control system as described above.

There is also provided, in accordance with an embodiment of the present invention, a wind park including a heat sink assembly as described above.

Further, according to an embodiment of the present invention, there is also provided a method for controlling a heat sink assembly, the method including: acquiring the wind speed and the wind direction of the radiator 1; determining whether the orientation of the radiator 1 needs to be adjusted according to the wind speed; when the wind speed exceeds a predetermined value, the driving unit is controlled to drive the radiator 1 to rotate according to the wind direction, thereby adjusting the windward area of the radiator 1.

Hereinafter, a method for controlling a heat sink assembly according to an embodiment of the present invention will be described with reference to fig. 1 to 4B, which specifically includes the following steps:

first, the typhoon temporary wind speed and direction are measured by the anemometer 3 and the wind vane 2, and the sensors of the anemometer 3 and the wind vane 2 transmit the measured wind speed and direction data into the control unit 9.

Next, the control unit 9 judges whether it is necessary to rotate the radiator 1 to avoid the typhoon according to the wind speed. When the wind speed is too high, for example, the wind speed exceeds a preset value, it is determined that the radiator 1 needs to be rotated. If the radiator 1 needs to be turned, the control unit 9 outputs two execution signals. One execution signal is fed back to the driving motor 5, and the driving motor 5 drives the driving rod to drive the fixture block 6 to move towards the direction of clamping the bottom of the heat sink 1, so as to clamp the bottom of the heat sink 1.

After the bottom of the radiator 1 is clamped, another execution signal is fed back to the motor 8, so that the motor 8 starts to work, the motor 8 drives the worm 7 to rotate, the worm 7 drives the worm wheel 4 to rotate, and the worm wheel 4 drives the radiator 1 to rotate. Wherein, the working stroke of the motor 8 is calculated by the control unit 9 according to the wind direction of the typhoon, and the contact area between the rotated radiator 1 (for example, as shown in fig. 4A) and the wind direction of the typhoon is minimized.

According to the embodiment, the rotation of the radiator 1 is automatically controlled through the wind measuring unit, the control unit 9 and the driving unit, the contact area between the surface of the radiator 1 and the wind direction of the typhoon is reduced, and the radiator 1 can resist the typhoon and is not damaged by the typhoon.

However, the present invention is not limited to this, and a manual control unit 10 may be provided in addition to the above-described automatic control rotation. The manual control unit 10 is connected to the control unit 9. In the event of a failure of the automatic control rotation, the operator may urgently operate the manual control unit 10 to perform manual rotation of the four radiators 1 simultaneously or individually. In this case, the rotation angle and direction of the radiator 1 are controlled by the manual control unit 10, and the control unit 9 mainly plays a role of sending start and stop commands to the motor 8 and/or the driving motor 5 according to the control of the manual control unit 10. The manual control unit 10 may preferably be a wireless remote control.

According to an embodiment of the invention, there may also be provided a wind power plant which may comprise a heat sink assembly as described above.

According to the embodiment of the invention, wind speed and wind direction signals actively measured by the wind measuring unit are fed back to the control unit, the control unit feeds back the execution signals to the driving unit, and the driving unit drives the radiator to rotate, so that the contact area between the radiator and the typhoon is reduced, and the radiator is ensured not to be damaged; the probability, time and cost of overall replacement and maintenance of the radiator in the later period are reduced; the reliability of the large megawatt wind generating set is improved.

While this disclosure has been particularly shown and described with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the following claims.

Claims

1. Radiator control system, characterised in that it comprises a drive unit for driving a radiator (1) rotatably mounted on a nacelle cover (13) of a wind turbine generator set in rotation, so as to adjust the frontal area of the radiator (1), and a control unit (9),

the control unit (9) is used for determining whether the orientation of the radiator (1) needs to be adjusted according to the measured wind speed, and controlling the driving unit to rotate the radiator (1) according to the measured wind direction when the wind speed exceeds a preset value so as to adjust the windward area of the radiator (1).

2. The radiator control system of claim 1, comprising:

and the wind measuring unit is used for measuring wind speed and wind direction.

3. The radiator control system of claim 1, wherein the drive unit comprises:

the worm wheel (4) is fixedly connected with the radiator (1);

a worm (7) which meshes with the worm wheel (4); and

and the motor (8) is used for driving the worm (7) to rotate.

4. The radiator control system of claim 3,

the driving unit further comprises a bearing, a moving ring of the bearing is used for being fixedly connected with the worm wheel (4), and a fixed ring of the bearing is used for being fixedly connected with the cabin cover (13);

the radiator (1) comprises a connecting shaft (1a), and the connecting shaft (1a) is fixedly connected with the worm wheel (4);

and a clamping mechanism is arranged on the worm wheel (4) and is used for clamping the connecting shaft (1a) on the worm wheel (4).

5. The radiator control system of claim 3,

the driving unit further comprises a bearing, the radiator (1) comprises a connecting shaft (1a), a moving coil of the bearing is used for being fixedly connected with the connecting shaft (1a), and a fixed coil of the bearing is used for being fixedly connected with the cabin cover (13);

the worm wheel (4) is sleeved on the connecting shaft (1 a);

6. The radiator control system of claim 3,

the driving unit further comprises a bearing, a moving coil of the bearing is used for being fixedly connected with the radiator (1), and a fixed coil of the bearing is used for being fixedly connected with the cabin cover (13);

the worm wheel (4) is sleeved on the moving ring of the bearing, a clamping mechanism is arranged on the worm wheel (4), and the clamping mechanism is used for clamping the moving ring of the bearing on the worm wheel (4).

7. Radiator control system according to any of claims 4-6, wherein the clamping mechanism is a three-jaw chuck, the worm wheel (4) is provided with three grooves (12) extending in the radial direction of the worm wheel (4), and the movable jaws of the three-jaw chuck are arranged in the grooves (12) and are movable in the radial inward direction of the worm wheel (4).

8. Radiator control system according to any of claims 4-6, wherein the worm wheel (4) is provided with at least two grooves (12) extending in the radial direction of the worm wheel (4), and the clamping mechanism comprises:

at least two clamping blocks (6) are respectively arranged in the at least two grooves (12);

the at least two driving rods are arranged in one-to-one correspondence with the at least two clamping blocks (6); and

the driving motor (5) is used for driving the at least two driving rods to move along the radial direction of the worm wheel (4) so as to drive the at least two clamping blocks (6) to move along the radial inward direction of the worm wheel (4).

9. The radiator control system recited in claim 3, wherein said radiator control system further comprises:

and the manual control unit (10) is connected with the control unit (9), and the manual control unit (10) controls the control unit (9) to send starting and stopping commands to the motor (8).

10. The radiator control system according to claim 1, wherein the radiators (1) and the drive units are plural, respectively, and are disposed in one-to-one correspondence, and the plural radiators (1) are rotatable independently of each other by the drive of the corresponding drive units.

11. A radiator assembly comprising a radiator (1), characterized in that the radiator (1) is rotatably mounted on a nacelle cover (13) of a wind turbine generator system, the radiator assembly further comprising a radiator control system according to any one of claims 1 to 10.

12. A wind park according to claim 11, wherein the wind park comprises a heat sink assembly as claimed in claim 11.

13. A method for controlling a radiator assembly, the radiator assembly comprising a radiator (1) rotatably mounted on a nacelle cover of a wind turbine generator system and a drive unit for driving the radiator (1) in rotation, the method comprising:

acquiring the wind speed and the wind direction of the radiator (1);

determining whether the orientation of the radiator (1) needs to be adjusted according to the wind speed;

when the wind speed exceeds a preset value, the driving unit is controlled according to the wind direction to drive the radiator (1) to rotate, so that the windward area of the radiator (1) is adjusted.

14. The method for controlling a heat sink assembly as recited in claim 13, wherein the driving unit comprises:

the worm wheel (4) is fixedly connected with the radiator (1);

a worm (7) which meshes with the worm wheel (4); and

the motor (8) is used for driving the worm (7) to rotate;

a clamping mechanism arranged on the worm wheel (4),

the method further comprises the following steps:

before the radiator (1) is driven to rotate, the clamping mechanism is driven to clamp the radiator (1) on the worm wheel (4).