CN108386316B - Wind power generating set noise reduction system and method, control device and its storage medium - Google Patents
Wind power generating set noise reduction system and method, control device and its storage medium Download PDFInfo
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- CN108386316B CN108386316B CN201810163861.XA CN201810163861A CN108386316B CN 108386316 B CN108386316 B CN 108386316B CN 201810163861 A CN201810163861 A CN 201810163861A CN 108386316 B CN108386316 B CN 108386316B
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- 230000009467 reduction Effects 0.000 title claims abstract description 342
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000036541 health Effects 0.000 claims abstract description 30
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
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- 238000010586 diagram Methods 0.000 description 14
- 238000005265 energy consumption Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
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Classifications
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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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0296—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce noise emissions
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/96—Preventing, counteracting or reducing vibration or noise
- F05B2260/962—Preventing, counteracting or reducing vibration or noise by means creating "anti-noise"
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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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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a kind of wind power generating set noise reduction system and methods, control device and its storage medium.The noise reduction system includes: monitoring unit, for monitoring the health data of wind power generating set；Multistage noise reduction unit, it is installed in the region between wind power generating set and residential block from the near to the distant, every grade of noise reduction unit is for generating the reversed sound wave opposite with the former noise phase of position, every grade of corresponding entry condition of noise reduction unit and a stop condition；Controller judges whether noise reduction units at different levels meet corresponding entry condition for the health data according to wind power generating set；If any level-one noise reduction unit meets corresponding entry condition, this grade of noise reduction unit starting is controlled, when this grade of noise reduction unit reaches corresponding stop condition, it is out of service to control this grade of noise reduction unit.Using the technical solution in the embodiment of the present invention, the noise reduction effect of wind power generating set can be improved.
Description
Technical field
The present invention relates to technical field of wind power generation more particularly to a kind of wind power generating set noise reduction systems and method, control
Device and its storage medium processed.
Background technique
In recent years, as a kind of clean energy resource, its development and utilization is increasingly taken seriously wind energy, and most wind energy resources are preferable
Remote districts it is built be equipped with wind power plant, be provided with more wind power generating sets (hereinafter referred to as blower) in wind power plant.Blower fortune
Much noise can be generated in row, the characteristic of different location noise is not also identical.For example, the noise generated when blade swing flap has face
Product is big, the generate point mostly big feature with frequency range；The noise that yaw system generates when running has frequency height, ear-piercing spy
Point；The noise that the components such as radiator fan and current transformer generate has the characteristics that low frequency.With the further exploitation of wind energy resources, wind-powered electricity generation
The addressing of field is more and more closer apart from resident residential area.
To reduce influence of the fan noise to resident, method in the prior art includes that exploitation has sound insulation, damping and resistance
The new blade of Buddhist nun's function installs soundproof plate additional for residential block, and the isolation to noise source is realized by the various characteristics using material.
But the inventors of the present application found that the method pair of the isolation to noise source is realized using the various characteristics of material
The treatment effect of high-frequency noise is preferable, and very poor for the treatment effect of nowhere a large amount of ubiquitous low-frequency noise.
Summary of the invention
The embodiment of the invention provides a kind of wind power generating set noise reduction systems and method, control device and its storage to be situated between
Matter, the noise being capable of handling in whole frequency range improve the noise reduction effect of wind power generating set.
In a first aspect, the embodiment of the invention provides a kind of wind power generating set noise reduction system, which includes:
Monitoring unit, for monitoring the health data of wind power generating set；
Multistage noise reduction unit is installed in the region between wind power generating set and residential block, every grade of noise reduction from the near to the distant
Unit is for generating the reversed sound wave opposite with the former noise phase of position, the corresponding trip bar of every grade of noise reduction unit
Part and a stop condition；
Controller judges whether noise reduction units at different levels meet pair for the health data according to wind power generating set
The entry condition answered；If any level-one noise reduction unit meets corresponding entry condition, this grade of noise reduction unit starting is controlled, until
When this grade of noise reduction unit reaches corresponding stop condition, it is out of service to control this grade of noise reduction unit.
In a kind of possible embodiment of first aspect, every grade of noise reduction unit includes that at least one active noise reduction is set
It is standby.
In a kind of possible embodiment of first aspect, the series of multistage noise reduction unit is three-level；Wherein, the first order
Noise reduction unit is installed on the tower inner wall of wind power generating set at the position of yaw system；Second level noise reduction unit is installed on
In wind power generating set and residential block line close to wind power generating set side and height it is equal with wind power generating set tower height
At position；Third level noise reduction unit is installed in residential block.
In a kind of possible embodiment of first aspect, monitoring unit includes state sensor, is indicated for generating
The whether in running order sensing signal of the yaw motor of yaw system；Controller, if being in for receiving yaw motor
The sensing signal of working condition then controls the starting of first order noise reduction unit, is not at working condition until receiving yaw motor
Sensing signal, control first order noise reduction unit it is out of service.
In a kind of possible embodiment of first aspect, monitoring unit further includes temperature sensor, for detecting partially
Temperature at boat motor position；Controller turns down the revolving speed of yaw motor if being also used to temperature reaches predetermined temperature threshold.
In a kind of possible embodiment of first aspect, temperature sensor is thermistor, for reaching when temperature
Trigger signal is generated when predetermined temperature threshold；Controller turns down turning for yaw motor if being also used to receive trigger signal
Speed.
In a kind of possible embodiment of first aspect, monitoring unit further includes anemobiagraph, for detecting wind-force hair
The wind speed of motor group position；Controller, if being also used to, wind speed reaches the first wind speed threshold value and wind power generating set is in
Day run mode then controls the starting of second level noise reduction unit, until wind speed is lower than the first wind speed threshold value or wind power generating set
Terminate operational mode in the daytime, control second level noise reduction unit is out of service；If wind speed reaches the second wind speed threshold value and wind-power electricity generation
Unit is in night operational mode, then controls the starting of third level noise reduction unit；Until wind speed is lower than the second wind speed threshold value or wind-force
Generating set terminates night operational mode, and control third level noise reduction unit is out of service.
In a kind of possible embodiment of first aspect, the second wind speed threshold value is less than the first wind speed threshold value.
In a kind of possible embodiment of first aspect, which further includes wireless signal generator, third level drop
It makes an uproar and is provided with wireless signal receiver in unit；Wireless signal generator, the expression third level noise reduction for sending controller
Unit starting or control signal out of service are forwarded to wireless signal receiver；Third level noise reduction unit, for according to wireless
The received control signal of signal receiver executes corresponding operating.
Second aspect, the embodiment of the invention provides a kind of wind power generating set noise-reduction methods, this method comprises:
In region between wind power generating set and residential block, multistage noise reduction unit, every grade of noise reduction are installed from the near to the distant
Unit is for generating the reversed sound wave opposite with the former noise phase of position, the corresponding trip bar of every grade of noise reduction unit
Part and a stop condition；
Monitor the health data of wind power generating set；
According to the health data of wind power generating set, judge whether noise reduction units at different levels meet corresponding trip bar
Part；If any level-one noise reduction unit meets corresponding entry condition, this grade of noise reduction unit starting is controlled, until this grade of noise reduction list
Member reaches corresponding stop condition, and it is out of service to control this grade of noise reduction unit.
In a kind of possible embodiment of second aspect, the series of multistage noise reduction unit is three-level；Pacify from the near to the distant
Fill multistage noise reduction unit, comprising: first order noise reduction unit is installed on the tower inner wall of wind power generating set close to yaw system
Position at；Second level noise reduction unit is installed in wind power generating set and residential block line close to wind power generating set side
And at position highly equal with wind power generating set tower height；Third level noise reduction unit is installed in residential block.
In a kind of possible embodiment of second aspect, according to the health data of wind power generating set, judgement
Whether noise reduction units at different levels meet corresponding entry condition；If any level-one noise reduction unit meets corresponding entry condition, control
The starting of this grade of noise reduction unit is made, until this grade of noise reduction unit reaches corresponding stop condition, this grade of noise reduction unit is controlled and stops fortune
Row, comprising: whether the yaw motor for detecting yaw system is in running order；If yaw motor is in running order, control
The starting of first order noise reduction unit, until yaw motor is not at working condition, control first order noise reduction unit is out of service.
In a kind of possible embodiment of second aspect, this method further include: the temperature at detection yaw motor position
Degree；If temperature reaches predetermined temperature threshold, the revolving speed of yaw motor is turned down.
In a kind of possible embodiment of second aspect, according to the health data of wind power generating set, judgement
Whether noise reduction units at different levels meet corresponding entry condition；If any level-one noise reduction unit meets corresponding entry condition, control
The starting of this grade of noise reduction unit is made, until this grade of noise reduction unit reaches corresponding stop condition, this grade of noise reduction unit is controlled and stops fortune
Row, further includes: the wind speed of detection wind power generating set position；If wind speed reaches the first wind speed threshold value and wind-driven generator
When group is in day run mode, then the starting of second level noise reduction unit is controlled, until wind speed is lower than the first wind speed threshold value or wind-force
Generating set terminates operational mode in the daytime, and control second level noise reduction unit is out of service.
In a kind of possible embodiment of second aspect, according to the health data of wind power generating set, judgement
Whether noise reduction units at different levels meet corresponding entry condition；If any level-one noise reduction unit meets corresponding entry condition, control
The starting of this grade of noise reduction unit is made, until this grade of noise reduction unit reaches corresponding stop condition, this grade of noise reduction unit is controlled and stops fortune
Row, further includes: if wind speed reaches the second wind speed threshold value and when wind power generating set is in night operational mode, control the third level
Noise reduction unit starting；Until wind speed terminates night operational mode, control third lower than the second wind speed threshold value or wind power generating set
Grade noise reduction unit is out of service.
The third aspect, the embodiment of the invention provides a kind of wind power generating set, which includes institute as above
The wind power generating set noise reduction system stated.
Fourth aspect, the embodiment of the invention provides a kind of wind power generating set noise reduction control device, which is used
In wind power generating set noise reduction system as described above, which is characterized in that control device includes: judgment module, for according to wind
The health data of power generator group, judges whether noise reduction units at different levels meet corresponding entry condition；Control module is used for
If any level-one noise reduction unit meets corresponding entry condition, this grade of noise reduction unit starting is controlled, until this grade of noise reduction unit
When reaching corresponding stop condition, it is out of service to control this grade of noise reduction unit.
In a kind of possible embodiment of fourth aspect, the series of multistage noise reduction unit is three-level, first order noise reduction
Unit corresponds to the first judging unit in judgment module and the first control unit in control module；Wherein, the first judging unit,
For judging whether to receive the in running order sensing signal of yaw motor；First control unit, if for receiving partially
The in running order sensing signal of avionics machine then controls the starting of first order noise reduction unit, does not locate until receiving yaw motor
In the sensing signal of working condition, it is out of service to control first order noise reduction unit.
In a kind of possible embodiment of fourth aspect, the series of multistage noise reduction unit is three-level, second level noise reduction
Unit corresponds to the second control unit in second judgment unit and control module in judgment module；Wherein, second judgment unit,
For judging whether the wind speed of wind power generating set position reaches the first wind speed threshold value and wind power generating set is in day
Between operational mode；Second control unit, if reaching the first wind speed threshold value for wind speed and wind power generating set is in day run
Mode then controls the starting of second level noise reduction unit, until wind speed terminates in the daytime lower than the first wind speed threshold value or wind power generating set
Operational mode, control second level noise reduction unit are out of service.
In a kind of possible embodiment of fourth aspect, third level noise reduction unit corresponds to the third in judgment module and sentences
Third control unit in disconnected unit and control module；Third judging unit, for judging wind power generating set position
Wind speed whether reach the second wind speed threshold value and wind power generating set is in night operational mode；Third control unit, if for
Wind speed reaches the second wind speed threshold value and wind power generating set is in night operational mode, then controls the starting of third level noise reduction unit；
Until wind speed terminates night operational mode lower than the second wind speed threshold value or wind power generating set, control third level noise reduction unit stops
Operation.
5th aspect, the embodiment of the invention provides a kind of computer readable storage mediums, are stored thereon with program, program
Wind power generating set noise-reduction method as described above is realized when being executed by processor.
According to an embodiment of the invention, for the noise in processing whole frequency range wind-force can be monitored by monitoring unit
Then the health data of generating set is installed in the region between wind power generating set and residential block multistage from the near to the distant
Noise reduction unit generates the reversed sound wave opposite with the former noise phase of position using every grade of noise reduction unit, while making every
The corresponding entry condition of grade noise reduction unit and a stop condition.To be precisely controlled starting and stopping for every grade of noise reduction unit,
It can judge whether noise reduction units at different levels meet corresponding starting by controller according to the health data of wind power generating set
Condition；If any level-one noise reduction unit meets corresponding entry condition, this grade of noise reduction unit starting is controlled, until this grade of noise reduction
When unit reaches corresponding stop condition, it is out of service to control this grade of noise reduction unit.
Due to being mounted with multistage in the embodiment of the present invention from the near to the distant region between wind power generating set and residential block
Noise reduction unit, every grade of noise reduction unit can generate the reversed sound wave opposite with the former noise phase of position, so as to
The noise in the whole frequency range between wind power generating set and residential block is enough eliminated, and then can be improved wind power generating set
Noise reduction effect.
Further, since the corresponding entry condition of every grade of noise reduction unit and a stop condition, allow controller root
Factually fan operation situation in border is precisely controlled starting and stopping for every grade of noise reduction unit, determines to realize noise reduction units at different levels
Phase timing noise reduction, and then the energy conservation and consumption reduction effects of wind power generating set can be reached.
Detailed description of the invention
The present invention may be better understood from the description with reference to the accompanying drawing to a specific embodiment of the invention wherein,
The same or similar appended drawing reference indicates the same or similar feature.
Fig. 1 is that wind generator set blade provided in an embodiment of the present invention is put away the oars the form schematic diagram of state；
Fig. 2 is the form schematic diagram of wind generator set blade provided in an embodiment of the present invention in the on-state；
Fig. 3 is the structural schematic diagram of wind driven generator unit yaw system provided in an embodiment of the present invention；
Fig. 4 is that yaw system provided in an embodiment of the present invention illustrates the cabin direction before wind and the angle between wind direction
Figure；
Fig. 5 is that yaw system provided in an embodiment of the present invention illustrates the cabin direction after wind and the angle between wind direction
Figure；
Fig. 6 is the structural schematic diagram for the wind power generating set noise reduction system that one embodiment of the invention provides；
Fig. 7 is the schematic view of the mounting position of second level noise reducing apparatus provided in an embodiment of the present invention；
Fig. 8 be another embodiment of the present invention provides wind power generating set noise reduction system structural schematic diagram；
Fig. 9 is the flow diagram of wind power generating set noise-reduction method provided in an embodiment of the present invention；
Figure 10 is the structural schematic diagram of wind power generating set noise reduction control device provided in an embodiment of the present invention.
Description of symbols:
101- blade；102- cabin；301- anemobiagraph；302- yaw motor；
303- yaw motor gear；304- yaw gear disk；305- cam；
306-PLC controller；601- monitoring unit；602- multistage noise reduction unit；
6021- first order noise reduction unit；The second level 6022- noise reduction unit；
6023- third level noise reduction unit；603- controller；801- sub-control station；
802- thermistor；803- frequency converter；804- active noise reduction equipment；
805- wireless signal generator；806- central monitor；
1001- judgment module；1002- control module.
Specific embodiment
The feature and exemplary embodiment of the various aspects of the embodiment of the present invention is described more fully below.Following detailed
In description, many details are proposed, in order to provide the comprehensive understanding to the embodiment of the present invention.
The present invention provides a kind of wind power generating set noise reduction system and method, control device and its storage medium.The noise reduction
System is capable of handling the noise in whole frequency range, is that wind power plant is attached so as to improve the noise reduction effect of wind power generating set
Close resident eliminates noise puzzlement.Meanwhile the wind power generating set noise reduction system in the embodiment of the present invention is with energy-saving
Advantage.
As depicted in figs. 1 and 2, wind power generating set is generally made of three blades 101, and three blades 101 are symmetrically solid
Due to 102 side of cabin.In general, the noise source of wind power generating set includes: 101 swing flap noise of blade, yaw system to wind
The noise that the work of the components such as noise, radiator fan and the current transformer of generation generates.
101 swing flap of blade refers to, changes the front face area of blade 101 by pitch-controlled system adjustment 101 propeller pitch angle of blade,
To control the size that blade 101 captures wind energy.The form of putting away the oars of blade 101 is shown in Fig. 1, the paddle of blade 101 under the form
Elongation is 0 °.Blade 101 is shown in Fig. 2 opens paddle form.In general, 101 swing flap of blade can generate vibrating noise, noise tool
Have the characteristics that area is big, it is mostly big with frequency range to generate point.
Fig. 3 is the structural schematic diagram of wind driven generator unit yaw system provided in an embodiment of the present invention.Yaw system is to wind
Refer to, makes blade wind wheel plane (Plane of rotation of blade) always in state windward by yaw motor 302, to make full use of
Wind energy, yaw system work can generate vibrating noise, which has the characteristics that frequency is high, ear-piercing.In general, yaw system includes
Survey wind component, executive module, detection components and control assembly.
As shown in figure 3, surveying wind component includes anemobiagraph 301.In one alternate embodiment, anemobiagraph 301 can be fixed
In on cabin meteorology frame, for detecting the wind speed of wind power generating set position.In one alternate embodiment, crosswind group
Part further includes wind vane (not shown), for detecting the angle between 102 direction of cabin and practical wind direction.
As shown in figure 3, executive module includes the yaw motor 302 being successively meshed, yaw motor gear 303 and yaw tooth
Wheel disc 304, yaw gear disk 304 and cabin 102 are fixed.When to wind, yaw motor 302 starts, and drives yaw motor gear 303
And yaw gear disk 304 rotates, and then cabin 102 is driven to rotate.Since three blades are symmetrically fixed on 102 side of cabin,
Therefore, blade wind wheel can be made to be right against wind direction by adjusting cabin 102 direction.
As shown in figure 3, detection components include cam 305, cam 305 can follow yaw gear disk 304 to rotate, Ke Yitong
Cross the practical yaw direction and yawing velocity in the rotation angle detection machine cabin 102 of cam 305.
As shown in figure 3, control assembly can be PLC controller 306, for executing the logical algorithm of yaw system.Yaw
It needs more equipment coordinations to work in the process, therefore certain noise can be generated.
Fig. 4 and Fig. 5 be respectively yaw system provided in an embodiment of the present invention to before wind and to after wind cabin direction and wind
Angle wind schematic diagram between, wherein arrow indicates wind direction.Figure 4, it is seen that wind forward engine room direction and wind direction it
Between angle a between 0 ° to 90 °.From figure 5 it can be seen that 0 ° is equal to the angle a after wind between cabin direction and wind direction,
Blade wind wheel plane is right against wind direction at this time.
Fig. 6 is the structural schematic diagram for the wind power generating set noise reduction system that one embodiment of the invention provides, as shown in fig. 6,
The wind power generating set noise reduction system includes monitoring unit 601, multistage noise reduction unit 602 and controller 603 (noise reduction controller).
Monitoring unit 601 is used to monitor the health data of wind power generating set.
Wherein, health data can be the health data relevant to noise source of wind power generating set.For example,
The above wind direction data, air speed data and running state data of yaw motor etc..
Multistage noise reduction unit 602 is installed on from the near to the distant in the region between wind power generating set and residential block, every grade of drop
Unit of making an uproar is for generating the reversed sound wave opposite with the former noise phase of position.
Wherein, every grade of corresponding entry condition of noise reduction unit and a stop condition.
In one alternate embodiment, every grade of noise reduction unit includes at least one active noise reduction equipment 804 (refering to Fig. 8).
Active noise reduction equipment 804 includes noise cancelling headphone and noise reduction sound equipment etc..
Wherein, the principle of active noise reduction equipment 804 are as follows: the reversed sound wave equal with ambient noise is generated, noise is neutralized,
To realize the effect of noise reduction.Since all sound is all made of certain frequency spectrum, therefore, it is possible to find that a kind of sound,
Frequency spectrum and the noise to be eliminated are just the same, and only this noise can be just completely counterbalanced by by phase on the contrary.
Controller 603 is used for the health data according to wind power generating set, judges whether noise reduction units at different levels meet
Corresponding entry condition；If any level-one noise reduction unit meets corresponding entry condition, this grade of noise reduction unit starting is controlled, directly
When reaching corresponding stop condition to this grade of noise reduction unit, it is out of service to control this grade of noise reduction unit.
According to an embodiment of the invention, for the noise in processing whole frequency range wind can be monitored by monitoring unit 601
Then the health data of power generator group is installed in the region between wind power generating set and residential block more from the near to the distant
Grade noise reduction unit 602, the reversed sound wave opposite with the former noise phase of position is generated using every grade of noise reduction unit, simultaneously
Make the corresponding entry condition of every grade of noise reduction unit and a stop condition.To be precisely controlled the starting of every grade of noise reduction unit and stopping
Only, it can judge whether noise reduction units at different levels meet correspondence by controller 603 according to the health data of wind power generating set
Entry condition；If any level-one noise reduction unit meets corresponding entry condition, this grade of noise reduction unit starting is controlled, until this
When grade noise reduction unit reaches corresponding stop condition, it is out of service to control this grade of noise reduction unit.
Due to being mounted with multistage in the embodiment of the present invention from the near to the distant region between wind power generating set and residential block
Noise reduction unit 602, every grade of noise reduction unit can generate the reversed sound wave opposite with the former noise phase of position, thus
The noise in the whole frequency range between wind power generating set and residential block can be eliminated, and then can be improved wind-driven generator
The noise reduction effect of group.
Further, since the corresponding entry condition of every grade of noise reduction unit and a stop condition, so that controller 603 can be with
It is precisely controlled starting and stopping for every grade of noise reduction unit according to practical fan operation situation, to realize to noise reduction units at different levels
Regular timing noise reduction, and then the energy conservation and consumption reduction effects of wind power generating set can be reached.
In one alternate embodiment, the series of multistage noise reduction unit 602 can be three-level.Below with three-level noise reduction unit
For, the installation site and noise reduction process of noise reduction units at different levels is described in detail.
In one alternate embodiment, preferably to eliminate the high-frequency noise generated by yaw system to wind, the first order drops
Unit 6021 of making an uproar can be installed on the tower inner wall of wind power generating set at the position of yaw system.
To be precisely controlled starting and stopping for first order noise reduction unit 6021, monitoring unit 601 may include state sensing
Device.The state sensor can generate the sensing signal for indicating whether the yaw motor of yaw system is in running order, control
Device 603 can control first order noise reduction unit 6021 and start after receiving the in running order sensing signal of yaw motor,
The sensing signal for being not at working condition until receiving yaw motor, control first order noise reduction unit 6021 are out of service.
Further, since first order noise reduction unit 6021 only just starts in the case where yaw motor is in running order,
With it is in the prior art it is always on compared with, the noise reduction energy consumption of wind power generating set can be saved.
In one alternate embodiment, monitoring unit 601 can also include temperature sensor, for detecting yaw motor position
Set the temperature at place.Controller 603 can also turn down yaw electricity when the temperature at yaw motor position reaches predetermined temperature threshold
The revolving speed of machine.
When reaching predetermined temperature threshold due to the temperature at yaw motor position, illustrate the running temperature of yaw motor compared with
Height, therefore, it is necessary to carry out fall-back to yaw motor to protect yaw motor, and yaw motor fall-back can further drop
The low noise generated by yaw motor operation.
In one alternate embodiment, temperature sensor can be thermistor 802 (refering to Fig. 8), and thermistor 802 is worked as
Temperature generates trigger signal when reaching predetermined temperature threshold, controller 603 can turn down yaw electricity after receiving the trigger signal
The revolving speed of machine.
In one alternate embodiment, second level noise reduction unit 6022 can be installed on wind power generating set and residential block connects
On line close to wind power generating set side and at position highly equal with wind power generating set tower height.
Fig. 7 is the schematic view of the mounting position of second level noise reducing apparatus provided in an embodiment of the present invention.
As shown in fig. 7, the position where wind power generating set is region A, the position where residential block is region B, for more
The low-frequency noise because of blade swing flap and the operation generation of wind power generating set other component, second level noise reduction unit 6022 are eliminated well
It may be mounted on wind power generating set and residential block line close to wind power generating set side (such as region C) and height and wind-force
At the equal position of generating set tower height.
To be precisely controlled starting and stopping for second level noise reduction unit 6022, monitoring unit 601 can also include anemobiagraph,
For detecting the wind speed of wind power generating set position, controller 603 can reach the first wind speed threshold value and wind in wind speed
When power generator group is in day run mode, control second level noise reduction unit 6022 starts, until wind speed is lower than the first wind speed
Threshold value or wind power generating set terminate operational mode in the daytime, and control second level noise reduction unit 6022 is out of service.
Further, since second level noise reduction unit 6022 only reaches at the first wind speed threshold value and wind power generating set in wind speed
Just start in the case where day run mode, with it is in the prior art it is always on compared with, wind power generating set can be saved
Noise reduction energy consumption.
In addition, since resident on daytime can make second level noise reduction unit 6022 only in wind-power electricity generation in residential area inner and outer movable
Unit, which is under day run mode, to be started, and enables to resident on daytime in residential area inner and outer movable from a large amount of low frequency noises
Influence.
In one alternate embodiment, third level noise reduction unit 6023 can be installed in residential block.To be precisely controlled
Second level noise reduction unit 6022 starts and stops, and controller 603 can reach the second wind speed threshold value and wind-driven generator in wind speed
When group is in night operational mode, control third level noise reduction unit 6023 starts, until wind speed is lower than the second wind speed threshold value or wind
Power generator group terminates night operational mode, and control third level noise reduction unit 6023 is out of service.
Further, since third level noise reduction unit 6023 only reaches at the second wind speed threshold value and wind power generating set in wind speed
Just start in the case where night operational mode, with it is in the prior art it is always on compared with, wind power generating set can be saved
Noise reduction energy consumption.
In addition, making third level noise reduction unit 6023 exist herein since neighbouring residents at night can rest in residential area substantially
Wind power generating set, which is under night operational mode, to be started, from the influence of a large amount of low frequency noises when can guarantee resident's rest.
It makes an uproar as noted previously, as second level noise reduction unit 6022 and third level noise reduction unit 6023 are capable of handling low frequency
Sound, and in the case where meeting respective threshold wind velocity, the energy consumption of second level noise reduction unit 6022 is higher, third level noise reduction unit
6023 energy consumptions are lower, therefore, start second level noise reduction unit 6022 only on daytime, third level noise reduction unit 6023 is only at night
Starting, on the one hand, it can satisfy the noise reduction demand to low-frequency noise, it on the other hand, between the two can also be by having complementary functions
The noise reduction energy consumption of wind power generating set is further saved with condition complementation.
It should be noted that the noise tolerance due to people on daytime is higher compared to night, the first wind speed threshold value can
To be greater than or equal to the second wind speed threshold value.Wherein, the value of the second wind speed threshold value and the second wind speed threshold value can be according to wind-force
The distance between generating set and residential area determine.
In one alternate embodiment, it is contemplated that the installation site of third level noise reduction unit 6023 is more dispersed, the present invention
Noise reduction system in embodiment further includes wireless signal generator 805, is accordingly provided with nothing in third level noise reduction unit 6023
Line signal receiver.Wherein, wireless signal generator 805 is used for the expression third level noise reduction unit for sending controller 603
The 6023 control signals for starting or stoping operation are forwarded to wireless signal receiver, and then third level noise reduction unit 6023 is according to nothing
The received control signal of line signal receiver executes corresponding operating.
Fig. 8 be another embodiment of the present invention provides wind power generating set noise reduction system structural schematic diagram.Example in Fig. 8
Property show connection relationship between the essential electrical component of wind power generating set noise reduction system and each component, for further
Wind power generating set noise reduction system in the embodiment of the present invention is illustrated, to help those skilled in the art understand that originally
Technical solution in inventive embodiments.Wind power generating set noise reduction system shown in Fig. 8 includes anemobiagraph 301, controller
603, first order noise reduction unit 6021, second level noise reduction unit 6022 and third level noise reduction unit 6023.
Wherein, wind speed of the anemobiagraph 301 for moment detection wind power generating set position.
Controller 603 can be the master controller of wind power generating set, for receive survey wind part air speed data, and
While completing other logic controls of wind power generating set, provides and patrol for the three-level active noise reduction system in the embodiment of the present invention
Collect operation.Controller 603 is also possible to the device with logic computing function being independently arranged.
As shown in figure 8, sub-control station 801 relevant to noise reduction operation is additionally provided under controller 603, shown in Fig. 8
Sub-control station 801 is connect with three yaw motors respectively.The order of controller 603 can be issued to yaw by sub-control station 801
Motor, and corresponding feedback is collected from yaw motor.
Thermistor 802 is also shown in Fig. 8, the running temperature for detection part yaw motor.801 He of sub-control station
Frequency converter 803 is additionally provided between each yaw motor.The order that frequency converter 803 is used to be issued according to sub-control station 801 drives
The revolving speed of yaw motor work or adjustment yaw motor.
First order noise reduction unit 6021, second level noise reduction unit 6022 shown in Fig. 8 and third level noise reduction unit 6023
It is connect respectively with controller 603.Wherein, it is dropped about first order noise reduction unit 6021, second level noise reduction unit 6022 and the third level
Make an uproar unit 6023 installation site description can with reference to above obtain.
Controller 603 can according to the health data of wind power generating set (such as wind speed, the temperature of yaw motor and
Working condition etc.) judge whether noise reduction units at different levels meet corresponding entry condition；It is corresponded to if any level-one noise reduction unit meets
Entry condition, then control the starting of this grade of noise reduction unit, when this grade of noise reduction unit reaches corresponding stop condition, control should
Grade noise reduction unit is out of service.Wherein, about first order noise reduction unit 6021, second level noise reduction unit 6022 and third level noise reduction
The description for starting and stopping operation of unit 6023 can be with reference to acquisition above.
As shown in figure 8, third level noise reduction unit 6023 may include multiple active noise reduction equipments 804 (for example, noise reduction ear
Machine, noise reduction sound equipment etc.).It is connected, is controlled by wireless signal generator 805 between controller 603 and multiple active noise reduction equipments 804
Device 603 processed can issue multiple active noise reduction equipments 804 and start and stop signal.Certainly, controller 603 and third level noise reduction
Multiple active noise reduction equipments 804 or wired connection in unit 6023.
Central monitor 806 is also shown in Fig. 8, which belongs to the central monitoring system of wind power plant.In
Centre monitor 806 can receive the health data that the monitoring unit 601 of each wind power generating set noise reduction system uploads, and
Each wind power generating set can be judged whether normal operation according to the health data of upload.The wind-force being operating abnormally if it exists
Generating set, then the operating parameter for the wind power generating set that manual modification is operating abnormally, and modified operating parameter is sent
To corresponding wind power generating set, so that wind power generating set can be run according to modified operating parameter.
As described above, the wind power generating set noise reduction system in the embodiment of the present invention can utilize the fortune of wind power generating set
Row characteristic and health data carry out classification to a variety of active noise reduction equipments and are precisely controlled, while reaching noise reduction purpose,
The noise reduction energy consumption of wind power generating set can be saved.
It should be noted that active noise reduction equipment in wind power generating set noise reduction system in the embodiment of the present invention can be with
It is used cooperatively with passive noise reducing apparatus, so as to reach better noise reduction effect.
Fig. 9 is the flow diagram of wind power generating set noise-reduction method provided in an embodiment of the present invention.As shown in figure 9, wind
Power generator group noise-reduction method includes step 901 to step 903.
In step 901, in the region between wind power generating set and residential block, multistage noise reduction list is installed from the near to the distant
Member, every grade of noise reduction unit is for generating the reversed sound wave opposite with the former noise phase of position, every grade of noise reduction unit pair
Answer an entry condition and a stop condition.
In one alternate embodiment, the series of multistage noise reduction unit is three-level；Multistage noise reduction unit is installed from the near to the distant,
It include: that first order noise reduction unit is installed on the tower inner wall of wind power generating set at the position of yaw system；By second
Grade noise reduction unit is installed on wind power generating set and residential block line close to wind power generating set side and height is sent out with wind-force
At the equal position of motor group tower height；Third level noise reduction unit is installed in residential block
In step 902, the health data of wind power generating set is monitored.
In step 903, according to the health data of wind power generating set, judge whether noise reduction units at different levels meet pair
The entry condition answered；If any level-one noise reduction unit meets corresponding entry condition, this grade of noise reduction unit starting is controlled, until
This grade of noise reduction unit reaches corresponding stop condition, and it is out of service to control this grade of noise reduction unit.
It in one alternate embodiment, can be with to the control method for starting and stopping operation of above-mentioned first order noise reduction unit
Are as follows: whether the yaw motor for detecting yaw system is in running order；If yaw motor is in running order, the first order is controlled
Noise reduction unit starting, until yaw motor is not at working condition, control first order noise reduction unit is out of service.
It is possible to further detect the temperature at yaw motor position；If temperature reaches predetermined temperature threshold, turn down partially
The revolving speed of avionics machine reaches noise reduction purpose.
It in one alternate embodiment, can be with to the control method for starting and stopping operation of above-mentioned second level noise reduction unit
Are as follows: the wind speed of detection wind power generating set position；If wind speed reaches the first wind speed threshold value and wind power generating set is in
When day run mode, then the starting of second level noise reduction unit is controlled, until wind speed is lower than the first wind speed threshold value or wind-driven generator
Group terminates operational mode in the daytime, and control second level noise reduction unit is out of service.
It in one alternate embodiment, can be with to the control method for starting and stopping operation of above-mentioned second level noise reduction unit
Are as follows: if wind speed reaches the second wind speed threshold value and when wind power generating set is in night operational mode, controls third level noise reduction list
Member starting；Until wind speed terminates night operational mode, control third level noise reduction lower than the second wind speed threshold value or wind power generating set
Unit is out of service.
Figure 10 is the structural schematic diagram of wind power generating set noise reduction control device provided in an embodiment of the present invention, for as above
The wind power generating set noise reduction system.As shown in Figure 10, which includes judgment module 1001 and control module
1002。
Wherein, judgment module 1001 is used for the health data according to wind power generating set, judges noise reduction units at different levels
Whether corresponding entry condition is met.
If control module 1002, which is used for any level-one noise reduction unit, meets corresponding entry condition, this grade of noise reduction list is controlled
Member starting, when this grade of noise reduction unit reaches corresponding stop condition, it is out of service to control this grade of noise reduction unit.
If Figure 10 also schematically illustrates the series of multistage noise reduction unit when being three-level, judgment module 1001 and control mould
The refinement structure of block 1002.
As shown in Figure 10, corresponding first judging unit 10011 of first order noise reduction unit and first control unit 10021.Its
In, the first judging unit 10011 is for judging whether to receive the in running order sensing signal of yaw motor；Such as Figure 10 institute
Show, first control unit 10021, if controlling the first order for receiving the in running order sensing signal of yaw motor
Noise reduction unit starting, the sensing signal for being not at working condition until receiving yaw motor, control first order noise reduction unit are stopped
Only run.
As shown in Figure 10, second level noise reduction unit corresponds to second judgment unit 10012 and the second control unit 10022.Its
In, second judgment unit 10012 is for judging whether the wind speed of wind power generating set position reaches the first wind speed threshold value
And wind power generating set is in day run mode；If the second control unit 10022 for wind speed reach the first wind speed threshold value and
Wind power generating set is in day run mode, then controls the starting of second level noise reduction unit, until wind speed is lower than the first wind speed threshold
Value or wind power generating set terminate operational mode in the daytime, and control second level noise reduction unit is out of service.
As shown in Figure 10, third level noise reduction unit corresponds to third judging unit 10013 and third control unit 10023；Its
In, third judging unit 10013 is for judging whether the wind speed of wind power generating set position reaches the second wind speed threshold value
And wind power generating set is in night operational mode；If third control unit 10023 for wind speed reach the second wind speed threshold value and
Wind power generating set is in night operational mode, then controls the starting of third level noise reduction unit；Until wind speed is lower than the second wind speed threshold
Value or wind power generating set terminate night operational mode, and control third level noise reduction unit is out of service.
The embodiment of the present invention also provides a kind of wind power generating set, which includes wind-force hair as described above
Motor group noise reduction system.
The embodiment of the invention provides a kind of computer readable storage mediums, are stored thereon with program, program is by processor
Wind power generating set noise-reduction method as described above is realized when execution.
It should be clear that all the embodiments in this specification are described in a progressive manner, each embodiment it
Between the same or similar part may refer to each other, the highlights of each of the examples are it is different from other embodiments it
Place.For device embodiment, related place may refer to the declaratives of embodiment of the method.Not office of the embodiment of the present invention
It is limited to particular step and structure described above and shown in figure.Those skilled in the art can understand the present invention in fact
It after the spirit for applying example, is variously modified, modification and addition, or the sequence between changing the step.Also, it is risen in order to concise
See, omits the detailed description to known method technology here.
Functional block shown in structures described above block diagram can be implemented as hardware, software, firmware or their group
It closes.When realizing in hardware, it may, for example, be electronic circuit, specific integrated circuit (ASIC), firmware appropriate, insert
Part, function card etc..When being realized with software mode, the element of the embodiment of the present invention is used to execute the program of required task
Or code segment.Perhaps code segment can store in machine readable media program or the data by carrying in carrier wave are believed
It number is sent in transmission medium or communication links." machine readable media " may include be capable of storage or transmission information any
Medium.The example of machine readable media includes electronic circuit, semiconductor memory devices, ROM, flash memory, erasable ROM
(EROM), floppy disk, CD-ROM, CD, hard disk, fiber medium, radio frequency (RF) link, etc..Code segment can via such as because
The computer network of special net, Intranet etc. is downloaded.
The embodiment of the present invention can be realized in other specific forms, without departing from its spirit and essential characteristics.For example, special
Determining algorithm described in embodiment can be modified, and system architecture is without departing from the substantially smart of the embodiment of the present invention
Mind.Therefore, current embodiment is all counted as being exemplary rather than limited, the model of the embodiment of the present invention in all respects
It encloses by appended claims rather than foregoing description defines, also, falls into the meaning of claim and complete in the range of equivalent
Portion changes all to be included among the range of the embodiment of the present invention.
Claims (20)
1. a kind of wind power generating set noise reduction system characterized by comprising
Monitoring unit, for monitoring the health data of wind power generating set；
Multistage noise reduction unit is installed in the region between the wind power generating set and residential block, every grade of noise reduction from the near to the distant
Unit is for generating the reversed sound wave opposite with the former noise phase of position, the corresponding trip bar of every grade of noise reduction unit
Part and a stop condition；
Controller judges whether noise reduction units at different levels meet pair for the health data according to the wind power generating set
The entry condition answered；If any level-one noise reduction unit meets corresponding entry condition, this grade of noise reduction unit starting is controlled, until
When this grade of noise reduction unit reaches corresponding stop condition, it is out of service to control this grade of noise reduction unit.
2. system according to claim 1, which is characterized in that every grade of noise reduction unit includes that at least one active noise reduction is set
It is standby.
3. system according to claim 1, which is characterized in that the series of the multistage noise reduction unit is three-level；Wherein,
First order noise reduction unit is installed on the tower inner wall of the wind power generating set at the position of yaw system；
Second level noise reduction unit is installed on the wind power generating set and the residential block line close to the wind-driven generator
At group side and position highly equal with the wind power generating set tower height；
Third level noise reduction unit is installed in the residential block.
4. system according to claim 3, which is characterized in that the monitoring unit includes state sensor, for generating
Indicate the whether in running order sensing signal of the yaw motor of the yaw system；
The controller controls described if being also used to receive the in running order sensing signal of the yaw motor
The starting of level-one noise reduction unit, the sensing signal for being not at working condition until receiving the yaw motor, control described first
Grade noise reduction unit is out of service.
5. system according to claim 4, which is characterized in that the monitoring unit further includes temperature sensor, for examining
Survey the temperature at the yaw motor position；
The controller turns down the revolving speed of the yaw motor if being also used to the temperature reaches predetermined temperature threshold.
6. system according to claim 5, which is characterized in that the temperature sensor is thermistor, for when described
Temperature generates trigger signal when reaching the predetermined temperature threshold；
The controller turns down the revolving speed of the yaw motor if being also used to receive the trigger signal.
7. system according to claim 3, which is characterized in that the monitoring unit further includes anemobiagraph, for detecting
State the wind speed of wind power generating set position；
The controller, if being also used to, the wind speed reaches the first wind speed threshold value and the wind power generating set is in day run
Mode then controls the second level noise reduction unit starting, until the wind speed is lower than the first wind speed threshold value or the wind-force
Generating set terminates operational mode in the daytime, and it is out of service to control the second level noise reduction unit；And if the wind speed reaches
The two wind speed threshold values and wind power generating set is in night operational mode then control the third level noise reduction unit starting；Directly
Terminate night operational mode lower than the second wind speed threshold value or the wind power generating set to the wind speed, controls the third
Grade noise reduction unit is out of service.
8. system according to claim 7, which is characterized in that the second wind speed threshold value is less than the first wind speed threshold
Value.
9. system according to claim 3, which is characterized in that the system also includes wireless signal generator, described
Wireless signal receiver is provided in three-level noise reduction unit；
The wireless signal generator, the expression third level noise reduction unit for sending the controller start or stop
The control signal of operation is forwarded to the wireless signal receiver；
The third level noise reduction unit, for executing corresponding operating according to the received control signal of the wireless signal receiver.
10. a kind of wind power generating set noise-reduction method characterized by comprising
In region between wind power generating set and residential block, multistage noise reduction unit, every grade of noise reduction unit are installed from the near to the distant
For generating the reversed sound wave opposite with the former noise phase of position, the corresponding entry condition of every grade of noise reduction unit and
One stop condition；
Monitor the health data of the wind power generating set；
According to the health data of the wind power generating set, judge whether noise reduction units at different levels meet corresponding trip bar
Part；If any level-one noise reduction unit meets corresponding entry condition, this grade of noise reduction unit starting is controlled, until this grade of noise reduction list
Member reaches corresponding stop condition, and it is out of service to control this grade of noise reduction unit.
11. according to the method described in claim 10, it is characterized in that, the series of the multistage noise reduction unit is three-level；It is described
Multistage noise reduction unit is installed from the near to the distant, comprising:
First order noise reduction unit is installed on the tower inner wall of the wind power generating set at the position of yaw system；
Second level noise reduction unit is installed in the wind power generating set and the residential block line close to the wind-power electricity generation
At unit side and position highly equal with the wind power generating set tower height；
Third level noise reduction unit is installed in the residential block.
12. according to the method for claim 11, which is characterized in that the operation conditions according to the wind power generating set
Data, judge whether noise reduction units at different levels meet corresponding entry condition；If any level-one noise reduction unit meets corresponding starting
Condition then controls the starting of this grade of noise reduction unit, until this grade of noise reduction unit reaches corresponding stop condition, controls this grade of noise reduction list
Member is out of service, comprising:
Whether the yaw motor for detecting the yaw system is in running order；
If the yaw motor is in running order, the first order noise reduction unit starting is controlled, until yaw motor is not located
In working condition, it is out of service to control the first order noise reduction unit.
13. according to the method for claim 12, which is characterized in that the method also includes:
Detect the temperature at the yaw motor position；
If the temperature reaches predetermined temperature threshold, the revolving speed of the yaw motor is turned down.
14. according to the method for claim 11, which is characterized in that the operation conditions according to the wind power generating set
Data, judge whether noise reduction units at different levels meet corresponding entry condition；If any level-one noise reduction unit meets corresponding starting
Condition then controls the starting of this grade of noise reduction unit, until this grade of noise reduction unit reaches corresponding stop condition, controls this grade of noise reduction list
Member is out of service, further includes:
Detect the wind speed of the wind power generating set position；
If the wind speed reaches the first wind speed threshold value and when the wind power generating set is in day run mode, described in control
Second level noise reduction unit starting, until the wind speed terminates in the daytime lower than the first wind speed threshold value or the wind power generating set
It is out of service to control the second level noise reduction unit for operational mode；
If the wind speed reaches the second wind speed threshold value and when the wind power generating set is in night operational mode, described in control
The starting of third level noise reduction unit；Until the wind speed terminates night lower than the second wind speed threshold value or the wind power generating set
It is out of service to control the third level noise reduction unit for operational mode.
15. a kind of wind power generating set, which is characterized in that the wind power generating set includes such as claim 1-9 any one
The wind power generating set noise reduction system.
16. a kind of wind power generating set noise reduction control device is used for wind-driven generator as described in any one of claims 1-9
Group noise reduction system, which is characterized in that the control device includes:
Judgment module judges whether noise reduction units at different levels meet for the health data according to the wind power generating set
Corresponding entry condition；
Control module controls this grade of noise reduction unit starting if meeting corresponding entry condition for any level-one noise reduction unit,
When this grade of noise reduction unit reaches corresponding stop condition, it is out of service to control this grade of noise reduction unit.
17. device according to claim 16, which is characterized in that it is described multistage noise reduction unit series be three-level, first
Grade noise reduction unit corresponds to the first control unit in the first judging unit and the control module in the judgment module；Its
In,
First judging unit, for judging whether the in running order sensing letter of the yaw motor for receiving yaw motor
Number；
The first control unit, if controlling institute for receiving the in running order sensing signal of the yaw motor
It states first order noise reduction unit to start, the sensing signal for being not at working condition until receiving the yaw motor, described in control
First order noise reduction unit is out of service.
18. device according to claim 16, which is characterized in that it is described multistage noise reduction unit series be three-level, second
Grade noise reduction unit corresponds to the second control unit in second judgment unit and the control module in the judgment module；Its
In,
The second judgment unit, for judging whether the wind speed of the wind power generating set position reaches the first wind speed
The threshold value and wind power generating set is in day run mode；
Second control unit is in the daytime if reaching the first wind speed threshold value and the wind power generating set for the wind speed
Operational mode then controls second level noise reduction unit starting, until the wind speed is lower than the first wind speed threshold value or described
Wind power generating set terminates operational mode in the daytime, and it is out of service to control the second level noise reduction unit.
19. device according to claim 18, which is characterized in that third level noise reduction unit corresponds in the judgment module
Third control unit in third judging unit and the control module；Wherein,
The third judging unit, for judging whether the wind speed of the wind power generating set position reaches the second wind speed
The threshold value and wind power generating set is in night operational mode；
The third control unit, if reaching the second wind speed threshold value for the wind speed and the wind power generating set is in night
Operational mode then controls the third level noise reduction unit starting；Until the wind speed is lower than the second wind speed threshold value or described
Wind power generating set terminates night operational mode, and it is out of service to control the third level noise reduction unit.
20. a kind of computer readable storage medium, is stored thereon with program, which is characterized in that described program is executed by processor
Wind power generating set noise-reduction method of the Shi Shixian as described in claim 10-14 any one.
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| CN109060118B (en) * | 2018-09-07 | 2024-03-26 | 镇江市建设工程质量检测中心有限公司 | Noise detection device and method |
| CN111946547B (en) * | 2019-05-15 | 2022-08-30 | 新疆金风科技股份有限公司 | Method, device and system for adjusting pitch angle of blade of wind generating set |
| CN113790123B (en) * | 2021-08-10 | 2023-03-31 | 太原重工股份有限公司 | Noise suppression system and method for wind turbine generator |
| CN113757050B (en) * | 2021-09-08 | 2023-05-02 | 浙江运达风电股份有限公司 | Wind farm noise monitoring control system and method |
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