CN112377377A - Wind driven generator heat circulating device and wind driven generator - Google Patents
Wind driven generator heat circulating device and wind driven generator Download PDFInfo
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- CN112377377A CN112377377A CN202011332975.6A CN202011332975A CN112377377A CN 112377377 A CN112377377 A CN 112377377A CN 202011332975 A CN202011332975 A CN 202011332975A CN 112377377 A CN112377377 A CN 112377377A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/60—Cooling or heating of wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention discloses a wind driven generator heat circulating device and a wind driven generator, wherein the wind driven generator comprises a cabin, a gear box and a generator, the gear box and the generator are arranged in the cabin, and the wind driven generator heat circulating device comprises: the radiator is arranged corresponding to the position of the gear box and/or the generator; the radiator is provided with a radiating air duct which is provided with an air outlet outside the cabin and an air outlet inside the cabin, and the air outlet inside the cabin is communicated with the cabin; a first gate; the radiator is arranged on the radiator and is used for controlling the opening/closing of the air outlet outside the cabin; the second gate is arranged on the radiator and used for controlling the opening/closing of the air outlet in the cabin; and the controller is electrically connected with the first gate and the second gate and used for executing a temperature compensation control action when the components in the cabin meet the temperature compensation condition, wherein the temperature compensation control action comprises controlling the second gate to be opened and conveying the heat in the heat dissipation air duct to the cabin so as to compensate the temperature in the cabin. The invention can reduce the self power consumption of the wind driven generator.
Description
Technical Field
The invention relates to the technical field of fan power generation, in particular to a wind driven generator heat circulating device and a wind driven generator.
Background
The wind turbine may experience significant temperature degradation of the equipment components due to reduced ambient temperature or longer periods of equipment power down. For the normal start-up of the equipment, the related components need to be heated, that is, a heater needs to be arranged to dissipate heat of the corresponding components, which inevitably results in the increase of the power consumption of the wind driven generator.
Disclosure of Invention
The invention mainly aims to provide a heat circulating device of a wind driven generator and the wind driven generator, and aims to heat a to-be-heated device by utilizing heat generated by the to-be-cooled device without additionally arranging a heating device so as to reduce the self power consumption of the wind driven generator.
In order to achieve the above object, the present invention provides a wind turbine thermal circulation device, which is applied to a wind turbine, wherein the wind turbine includes a nacelle, and a gear box and a generator which are arranged in the nacelle, and the wind turbine thermal circulation device includes:
a radiator disposed corresponding to the gear box and/or the generator; the radiator is provided with a radiating air duct, the radiating air duct is provided with an outdoor air outlet and an indoor air outlet, and the indoor air outlet is communicated with the engine room;
a first gate; the radiator is arranged on the cabin and used for controlling the opening/closing of the air outlet outside the cabin;
the second gate is arranged on the radiator and used for controlling the opening/closing of the air outlet in the cabin;
and the controller is electrically connected with the first gate and the second gate and used for executing a temperature compensation control action when the internal part of the engine room meets a temperature compensation condition, wherein the temperature compensation control action comprises controlling the second gate to open and convey heat in the heat dissipation air duct to the engine room so as to compensate the temperature in the engine room.
Optionally, the wind turbine thermal cycle apparatus further comprises:
the temperature detection module is electrically connected with the controller and used for detecting the temperature of each component in the cabin;
the controller is used for determining whether the components in the cabin meet the temperature compensation condition according to the detected temperature.
Optionally, the controller is specifically configured to determine that the components in the nacelle meet the temperature compensation condition when the temperature of the lowest-temperature component among the temperatures of the components in the nacelle detected by the temperature detection module is smaller than a first preset temperature threshold.
Optionally, the controller is further specifically configured to:
and when the temperature of the lowest-temperature component in the components is detected to be greater than the second preset temperature threshold value, or the temperature of any one component in the components reaches the third preset temperature threshold value, controlling the first gate to be opened.
Optionally, the temperature compensation control action further comprises controlling the first shutter to close.
Optionally, the wind turbine thermal cycle device further comprises a third gate arranged on the nacelle;
the temperature compensation control action further comprises controlling the third shutter to close.
Optionally, the controller is further configured to control the third gate to open when it is detected that the temperature of the lowest-temperature component in the components is greater than the second preset temperature threshold, or the temperature of any one of the components reaches the third preset temperature threshold.
Optionally, the heat sink comprises:
the heat radiation fan is arranged in the hot air chamber; and the radiating fins are arranged close to the gear box and the air inlet.
The invention also provides a wind driven generator which comprises a cabin, a gear box and a generator which are arranged in the cabin, and the wind driven generator thermal circulation device.
Optionally, the wind power generator further comprises:
the generator comprises a hub, a generator main shaft and a transformer, wherein the generator main shaft is sequentially connected with a gear box and the hub, and the generator is in mechanical transmission connection with the generator main shaft.
The heat circulation device of the wind driven generator is provided with a radiator for radiating heat of a gear box and/or a generator, and the radiator is provided with a first gate and a second gate; and when the second gate is opened, the heat in the radiator is discharged to the cabin, so that the cabin and the components in the cabin are heated. According to the invention, the two gates are arranged on the radiator of the device to be radiated, the heat internal circulation channel and the heat external circulation channel are formed by changing the working states of the gates, the cabin radiating channel is changed, the heat regulation is fully utilized, the heat energy of the cabin is recycled, and the starting frequency and the starting time of heaters of all parts are greatly reduced. The invention heats the to-be-heated device by utilizing the heat generated by the to-be-cooled device without additionally arranging a heating device, can reduce the self power consumption of the wind driven generator, improves the power generation performance, and is beneficial to energy conservation and environmental protection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a wind turbine heat cycle apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of an embodiment of a thermal cycling apparatus for a wind turbine according to the present invention;
fig. 3 is a schematic circuit diagram of another embodiment of the thermal cycling apparatus of the wind turbine according to the invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
41 | |
| 20 | |
42 | |
| 30 | |
43 | |
| 40 | |
100 | |
| 50 | |
11 | Radiating |
| 60 | |
12 | Heat radiating wind |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a thermal circulation device of a wind driven generator, which is applied to the wind driven generator.
In this embodiment, the wind turbine further includes at least one rotor blade (not shown), a hub, a yaw system, and a main frame with a hydraulic station built therein. The hub is provided with a main shaft, and the main shaft is connected with the gear box and the generator. The rotor blades are connected to the hub by bearings. The front end flange of the gearbox is arranged between the hub and the nacelle seat. The gearbox and generator are arranged inside the nacelle. The gearbox is coupled to the rotor of the generator on the back side of the generator by a coupling through the generator shaft. And a brake system is integrated in the connection between the gear box and the generator and is used for realizing the brake function of the high-speed shaft. The gear box is positioned in a cabin of the wind generating set, and the power generation principle of the wind generating set is that the blades drive the gear box under the action of wind power, and the gear box is meshed with the multi-stage gears to increase the speed and then drives the generator to generate power. The hydraulic station positioned in the engine room base is used for providing lubrication for the gear box, the rotor bearing and the generator bearing, lubricating oil enters the gear box and the generator through a top pipeline, the lubricating oil is sprayed and lubricated by using internal oil circuits of the gear box and the generator, and the lubricating oil is collected to the bottom of the gear box and the generator and returns to a hydraulic oil tank through a bottom oil return pipeline; while providing hydraulic pressure to yaw systems, brake systems, etc. And the top of the cabin seat is provided with a wind measuring system.
The wind driven generator also comprises a gear box radiator and a generator radiator which are arranged in the engine room, and in a further embodiment, a converter radiator, a transformer radiator and the like can be arranged, wherein the gear box radiator can be arranged at the top of the gear box; the converter radiator and the transformer radiator are arranged at the top of the tail end of the engine room; the generator heat dissipation device is arranged at the top of the generator. The temperature of the gear box below the heat dissipating fins 11 is higher than the outdoor temperature due to friction and transmission efficiency. In order to reduce the temperature of the gear box, an air inlet is arranged on the cabin, the entering amount of cold air is increased, and the heat of the gear box is conducted to the heat dissipation fins 11 on the radiator of the gear box, so that the heat dissipation of the gear box is accelerated. The heat dissipation fan discharges hot air to the outside of the engine room, and the operation temperature of the heat dissipation body is finally reduced by the mode that cold air enters and hot air exits from the gear box and the generator. However, a drop in ambient temperature or a longer period of equipment power down of the wind turbine may result in a significant drop in equipment component temperature. For the normal start-up of the equipment, the related components need to be heated, that is, a heater needs to be arranged to dissipate heat of the corresponding components, which inevitably results in the increase of the power consumption of the wind driven generator.
In order to solve the above problem, referring to fig. 1 to 3, in an embodiment of the present invention, the wind turbine thermal cycling apparatus includes:
a radiator 10 disposed corresponding to a position of the gearbox (not shown) and/or the generator (not shown); the radiator 10 is provided with a heat dissipation air duct 13, the heat dissipation air duct 13 is provided with an outside air outlet and an inside air outlet, and the inside air outlet is communicated with the cabin 100;
a first shutter 20; the radiator is arranged on the radiator 10 and used for controlling the opening/closing of the air outlet outside the cabin;
the second gate 30 is arranged on the radiator 10 and used for controlling the opening/closing of the air outlet in the cabin;
and the controller 40 is electrically connected with the first gate 20 and the second gate 30, and is used for executing a temperature compensation control action when the components in the cabin 100 meet a temperature compensation condition, wherein the temperature compensation control action comprises controlling the second gate 30 to be opened, and conveying the heat in the heat dissipation air duct 13 to the cabin 100 so as to compensate the temperature in the cabin 100.
In this embodiment, the radiator 10 may be disposed corresponding to a gearbox, or corresponding to a generator, or corresponding to both the gearbox and the generator, but in other embodiments, a plurality of radiators 10 may also be disposed for devices with serious heat generation in the nacelle 100, such as a transformer, to radiate heat of corresponding components. Each radiator 10 is provided with an air path pipeline, and an air inlet and an air outlet are arranged on the engine room 100, and the air path pipeline is communicated with the air inlet and the air outlet. Meanwhile, the path sealing pipeline is also provided with radiating fins 11 and a fan, and the fan can be used for sucking cold air and also can be used for pumping out hot air. When the fan is used for sucking cold air, the heat dissipation fins 11 can be arranged at the rear end of the fan, and when the fan is used for pumping out hot air, the heat dissipation fins 11 are arranged at the front end of the fan. The first shutter 20 and the second shutter 30 may be driven and controlled by a motor, for example, by energizing/de-energizing the motor, to control the opening/closing of the first shutter 20 and the second shutter 30. In fig. 1, the direction of the arrow indicates the flow direction of air.
It will be appreciated that the gearbox and generator, etc. may operate with higher heat than the nacelle 100 and some of the less heat generating components within the nacelle 100, and that the temperature difference between the two may be greater in situations where the wind turbine is operating at a reduced ambient temperature or the equipment is powered down for a longer period of time, which may result in a significant reduction in the temperature of the equipment components. In this case, the heat generated by the gearbox needs to be exhausted out of the nacelle 100, and the nacelle 100 or other components inside the nacelle 100 need to be heated. For this purpose, the present embodiment may dispose both the first shutter 20 and the second shutter 30 on the air path duct of the member to be cooled 10, the first shutter 20 may be disposed at the wind outlet, the opening of the first shutter 20 faces the wind outlet, and the opening of the second shutter 30 faces the interior of the nacelle 100. The first gate 20 and the second gate 30 may be controlled by a linkage switch, that is, when the first gate 20 is opened, the second gate 30 is closed, and when the first gate 20 is closed, the second gate 30 is opened. Of course, in other embodiments, separate controllers 40 may be used to control each of the two gates.
The wind turbine thermal circulation device further includes a temperature detection module 50, which is provided with a plurality of sets of sensors for detecting the temperature of each component in the nacelle 100 and the temperature of the nacelle 100, wherein the condition that the temperature compensation is satisfied can be that the judgment is realized according to the temperature detected by the temperature detection module 50. The temperature compensation control operation is specifically that the second shutter 30 is opened. In some embodiments, the temperature compensation control action further comprises controlling the first shutter 20 to close. When the temperature compensation action is performed, whether the first shutter 20 is opened or not can be determined according to the temperature difference value to be compensated, and if the compensation degree is large, the first shutter 20 is closed, that is, only the second shutter 30 is opened. If the compensation degree is small, the first gate 20 may be opened, that is, the first gate 20 and the second gate 30 are opened at the same time, so as to accelerate heat dissipation of the corresponding components while achieving temperature compensation. In other embodiments, the temperature compensation condition may also be the ambient temperature, the temperature compensation condition setting according to the current operating condition of the wind turbine, or an empirical value, and the following embodiments perform the condition judgment according to the temperature of each component detected by the temperature detection module 50. In the embodiments of the present invention, the first gate 20 is opened and the second gate 30 is closed during temperature compensation, but the present invention is not limited to this compensation method.
Specifically, the controller 40 controls to change the operating states of the first shutter 20 and the second shutter 30 according to the detected temperature value. For example, when it is detected that the device needs to be cooled, the first shutter 20 may be opened and the second shutter 30 may be closed, and when it is detected that the device needs to be heated, the second shutter 30 may be opened and the first shutter 20 may be closed. When the first gate 20 is opened and the second gate 30 is closed, the air inlet and the air outlet of the heat sink 10 can be communicated, so that heat is dissipated to corresponding components, and external circulation of heat is realized. When the air inlet stops supplying air and the first gate 20 is closed, the cabin 100 is equivalent to a closed cabin, so that when the first gate 20 is closed and the second gate 30 is opened, the heat in the radiator 10 can be discharged into the cabin 100, thereby increasing the average temperature in the cabin 100 and realizing the internal circulation of the heat.
The heat circulation device of the wind driven generator is provided with a radiator 10 to radiate heat of a gearbox and/or a generator, a first gate 20 and a second gate 30 are arranged on the radiator 10, a temperature detection module 50 is further arranged to detect the temperature of each component in a cabin 100, and the first gate 20 or the second gate 30 is controlled to be opened according to the detected temperature, so that when the first gate 20 is opened, an air inlet and an air outlet arranged on the cabin 100 are controlled to be communicated, and heat is discharged out of the cabin 100; and the second shutter 30, when opened, discharges heat in the radiator 10 into the nacelle 100, thereby heating the nacelle 100 and the components in the nacelle 100. According to the invention, the two gates are arranged on the radiator 10 of the part to be cooled 10, the heat inner circulation channel and the heat outer circulation channel are formed by changing the working state of the gates, the heat dissipation channel of the engine room 100 is changed, heat regulation is fully utilized, the heat energy of the engine room 100 is recycled, and the starting frequency and the starting time of heaters of all parts are greatly reduced. The invention utilizes the heat generated by the 10 parts to be cooled to heat the parts to be heated, does not need to be additionally provided with a heating device, can reduce the self power consumption of the wind driven generator, improves the power generation performance, and is beneficial to energy conservation and environmental protection.
Referring to fig. 1 to 3, in an embodiment, the controller 40 determines the components in the nacelle according to the detected temperature, and controls the first shutter 20 and the second shutter 30 to operate.
The controller 40 is specifically configured to determine that the components in the nacelle 100 satisfy the temperature compensation condition when the temperature of the component with the lowest temperature among the temperatures of the components in the nacelle 100 detected by the temperature detection module 50 is less than a first preset temperature threshold.
And when the temperature of the lowest-temperature component in the components is detected to be less than the first preset temperature threshold value, controlling the second gate 30 to be opened.
It will be appreciated that each component is resistant to different low temperatures, for example, the lowest temperature for some components such as gearbox oil to operate is 10 ℃, the lowest temperature for transformer windings to operate is-20 ℃, the lowest temperature for slip rings to operate is 0 ℃, and the lowest temperature for nacelle 100 to operate is-30 ℃. The first preset temperature threshold may be set according to different models, or may be adjusted according to different application environments, for example, the first preset temperature threshold may be set to be different in extreme cold and basic hot places. In one embodiment, the first predetermined temperature threshold may be increased by 25 to 30 ℃, preferably by 30 ℃ based on the low temperature resistance of each device. That is, the first preset temperature threshold of the engine room 100 may be set to 0-10 ℃; the first preset temperature threshold of the gearbox oil can be set to be 30-40 ℃.
In this embodiment, a temperature sensor is disposed at a position corresponding to each component, the temperature sensor detects the temperature of each component in real time, when it is detected that the current temperature of the device with the lowest temperature is smaller than the first preset temperature threshold value, for example, in the acquired temperature values of each device, the nacelle 100 is the component with the lowest temperature, and the nacelle 100 is currently smaller than the first preset temperature threshold value, the second gate 30 may be controlled to open, and at this time, the gearbox radiator 10 and the generator radiator 10 discharge heat into the nacelle 100 through the second gate 30 until the temperature of the nacelle 100 is greater than the first preset temperature threshold value. The first shutter 20 can now be set to be closed or open, depending on the compensated temperature.
Referring to fig. 1 to 3, in an embodiment, the controller 40 is further specifically configured to:
and when the temperature of the lowest-temperature component in the components is detected to be greater than the second preset temperature threshold value, or the temperature of any one component in the components reaches the third preset temperature threshold value, controlling the first gate 20 to be opened.
It can be understood that each component has different high temperature resistance, for example, the highest temperature of some components such as gearbox oil is 80 ℃, the highest temperature of transformer winding is 155 ℃, the highest temperature of collector ring and gearbox bearing is 90 ℃, the highest temperature of cabin 100 is 50 ℃, the highest temperature of gearbox oil is 80 ℃, and the highest temperature of hydraulic oil in hydraulic station is 65 ℃; the maximum temperature of the generator bearings was 105 ℃. The second preset temperature threshold may be set according to different models, or may be adjusted according to different application environments, for example, the second preset temperature threshold may be set to be different in both very cold and very hot places. In one embodiment, the second predetermined temperature threshold may be increased by 35 to 40 ℃, preferably 35 ℃ based on the low temperature resistance of each device. That is, the second preset temperature threshold of the engine room 100 may be set to 5-10 ℃; the second preset temperature threshold of the gearbox oil can be set to 40-45 ℃. The third preset temperature threshold may be lowered by 10 ℃ on the basis of its maximum temperature, for example the third preset temperature threshold of the nacelle 100 may be set to 40 ℃; a third preset temperature threshold for the gearbox oil may be set at 70 deg.c.
In this embodiment, when it is detected that the current temperature of the lowest device among the devices is greater than the second preset temperature threshold, for example, among the obtained temperature values of the devices, the nacelle 100 is the lowest component, and the nacelle 100 is currently greater than the second preset temperature threshold, or when the current temperature of the device among the devices reaches the third preset temperature threshold, the first gate 20 may be controlled to be opened, the second gate 30 is controlled to be closed, and at this time, the gearbox radiator 10 and the generator radiator 10 discharge heat to the outside of the nacelle 100 through the first gate 20 until the temperature of the nacelle 100 is less than the second preset temperature threshold.
Referring to fig. 1 to 3, in an embodiment, the nacelle 100 housing is further provided with a third shutter 60;
the temperature detection module 50 is specifically configured to:
when the temperature of the lowest-temperature component in the components is detected to be lower than the first preset temperature threshold value, controlling the third gate 60 to close;
and when the temperature of the lowest-temperature component in the components is detected to be greater than the second preset temperature threshold value, or the temperature of any one component in the components reaches the third preset temperature threshold value, controlling the third gate 60 to be opened.
In this embodiment, the third shutter 60 is disposed on the nacelle 100, and may be disposed near the transformer. The third shutter 60 and the first shutter 20 may be set to be opened simultaneously or closed simultaneously, when it is detected that the current temperature of the lowest-temperature device is greater than the second preset temperature threshold value thereof in each device, for example, in the acquired temperature values of each device, the nacelle 100 is the lowest-temperature component, and the nacelle 100 is currently greater than the second preset temperature threshold value thereof; or, in each device, when the current temperature of the device reaches the third preset temperature threshold, the third shutter 60 may be controlled to open, at this time, cold air enters from the air inlet, and heat generated by the devices such as the gear box, the generator and the like is exhausted to the outside of the nacelle 100 through the first shutter 20 and the third shutter 60 until the temperature of the nacelle 100 is less than the second preset temperature threshold. When the temperature of the lowest temperature component in the components is detected to be lower than the first preset temperature threshold value, the third gate 60 is controlled to be closed, and meanwhile, the air inlet stops supplying air, so that a closed cabin 100 environment is formed, the average temperature in the cabin 100 is improved, and the internal circulation of heat is realized.
Referring to fig. 1 to 3, in an embodiment, the heat sink 10 includes:
an air path pipe and a hot air chamber connecting an air inlet (not shown) and an air outlet provided on a housing of the nacelle 100;
the radiating fins 11 are arranged close to the gear box and the air inlet;
and a heat radiation fan 12 disposed in the hot air chamber.
In this embodiment, the first heat sink 10 is a heat dissipating fin 11, the second heat sink 10 is a fan, the fan can be implemented by an axial flow fan, the fan is used for extracting hot air, the heat dissipating fin 11 is disposed at the air inlet and near the gear box, and the fan extracts heat conducted to the heat dissipating fin 11 out of the cabin 100.
Referring to fig. 1 to 3, in an embodiment, the wind turbine thermal cycling apparatus further includes:
a heater (not shown) disposed within the nacelle 100;
the controller 40 is further configured to:
after the second gate 30 is controlled to open for a first preset time, when the temperature of the lowest temperature component in the components is detected to be still less than the first preset temperature threshold value, the heater is controlled to work.
It can be understood that the possible heat generated by the gearbox and the generator is limited, and in the case that the temperature of the nacelle 100, the gearbox oil and the like is low due to a sudden drop of the ambient air temperature or due to factors such as long-time non-operation of some components, when the heat generated by the gearbox, the generator and the like is still insufficient to enable the temperature of the nacelle 100, the gearbox oil, the slip rings and the like to reach the normal temperature, the heater can be controlled to heat the corresponding device until the temperature of the device reaches the normal operation.
Referring to fig. 1 to 3, in an embodiment, the controller 40 includes:
a power supply 41;
a shutter switch 42 provided between the power supply 41 and the first shutter 20 and the second shutter 30;
and a PLC controller 43 connected to the plurality of temperature sensors and the controlled end of the shutter switch 42.
In this embodiment, the power supply 41 is used to supply power to the motor of the shutter, the shutter switch 42 may be a multi-contact relay, a mechanical switch, or the like, and the PLC controller 43 is used to control the opening or closing of each shutter according to the temperature of each component detected by the temperature sensor.
Further, in the above embodiment, the gate switch 42 further includes a signal feedback end, and the signal feedback end of the gate switch 42 is connected to the PLC controller 43.
In this embodiment, the signal feedback end is used for feeding back the opening state and the closing state of the gate, and after the gate is completely opened, the signal is fed back to the PLC fan controller 40 through the feedback loops S1 and S2 of the 3 gates, or after the gate is completely closed, the signal is fed back to the PLC fan controller 40 through the feedback loops S1 and S2 of the 3 gates, so as to realize the closed-loop control of the gate.
The invention also provides a wind driven generator which comprises a cabin 100, a gearbox and a generator which are arranged in the cabin 100, and the wind driven generator thermal circulation device.
The wind driven generator comprises a compressor motor and the wind driven generator thermal cycle device. The detailed structure of the wind driven generator heat cycle device can refer to the above embodiments, and is not described herein; it can be understood that, because the wind turbine heat cycle device is used in the wind turbine of the present invention, the embodiment of the wind turbine of the present invention includes all technical solutions of all the above embodiments, and the achieved technical effects are also completely the same, and are not described herein again.
In an embodiment, the wind power generator further comprises:
the generator comprises a hub, a generator main shaft and a transformer, wherein the generator main shaft is sequentially connected with a gear box and the hub, and the generator is in mechanical transmission connection with the generator main shaft. It is understood that those skilled in the art can implement the arrangement and implementation of the above components according to the existing wind power generator, and the detailed description is omitted here.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A wind power generator thermal circulation device is applied to a wind power generator, the wind power generator comprises a cabin, a gear box and a generator, the gear box and the generator are arranged in the cabin, and the wind power generator thermal circulation device is characterized by comprising:
a radiator disposed corresponding to the gear box and/or the generator; the radiator is provided with a radiating air duct, the radiating air duct is provided with an outdoor air outlet and an indoor air outlet, and the indoor air outlet is communicated with the engine room;
a first gate; the radiator is arranged on the cabin and used for controlling the opening/closing of the air outlet outside the cabin;
the second gate is arranged on the radiator and used for controlling the opening/closing of the air outlet in the cabin;
and the controller is electrically connected with the first gate and the second gate and used for executing a temperature compensation control action when the internal part of the engine room meets a temperature compensation condition, wherein the temperature compensation control action comprises controlling the second gate to be opened and transmitting heat in the heat dissipation air duct to the engine room so as to compensate the temperature in the engine room.
2. The wind turbine thermal cycler of claim 1, further comprising:
the temperature detection module is electrically connected with the controller and used for detecting the temperature of each component in the cabin;
the controller is used for determining whether the components in the cabin meet the temperature compensation condition according to the detected temperature.
3. The wind turbine thermal cycler of claim 2, wherein the controller is specifically configured to determine that the nacelle component satisfies the temperature compensation condition when a temperature of a lowest temperature component among the temperatures of the respective nacelle components detected by the temperature detection module is less than a first preset temperature threshold thereof.
4. The wind turbine thermal cycler of claim 2, wherein the controller is further specifically configured to:
and when the temperature of the lowest-temperature component in the components is detected to be greater than the second preset temperature threshold value, or the temperature of any one component in the components reaches the third preset temperature threshold value, controlling the first gate to be opened.
5. The wind turbine thermal cycler of any of claims 1-4, wherein the temperature compensation control action further comprises controlling the first gate to close.
6. The wind turbine thermal cycler of claim 5, further comprising a third gate for positioning in the nacelle;
the temperature compensation control action further comprises controlling the third shutter to close.
7. The wind turbine thermal cycler of claim 6, wherein the controller is further configured to control the third gate to open when the temperature of the lowest temperature component of the components is detected to be greater than the second predetermined temperature threshold, or when the temperature of any one of the components reaches the third predetermined temperature threshold.
8. The wind turbine thermal cycler of any of claims 1-4, wherein the heat sink comprises:
the heat radiation fan is arranged in the hot air chamber; and the radiating fins are arranged close to the gear box and the air inlet.
9. A wind power generator comprising a nacelle, a gearbox and a generator arranged in the nacelle, and a wind power generator thermal cycling apparatus according to any one of claims 1 to 8.
10. The wind power generator of claim 9, further comprising:
the generator comprises a hub, a generator main shaft and a transformer, wherein the generator main shaft is sequentially connected with a gear box and the hub, and the generator is in mechanical transmission connection with the generator main shaft.
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| CN112377377B (en) | 2024-03-19 |
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