CN108825452A - Determine the method and apparatus that wind generator set blade freezes - Google Patents
Determine the method and apparatus that wind generator set blade freezes Download PDFInfo
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- CN108825452A CN108825452A CN201810637578.6A CN201810637578A CN108825452A CN 108825452 A CN108825452 A CN 108825452A CN 201810637578 A CN201810637578 A CN 201810637578A CN 108825452 A CN108825452 A CN 108825452A
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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
- F03D80/40—Ice detection; De-icing means
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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
- 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
-
- 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
Abstract
A kind of method and apparatus that determining wind generator set blade freezes are disclosed.The method includes：The external environmental information and wind speed for obtaining each self-test of multiple wind power generating sets in wind power plant, as first group of external environment data and first group of air speed data；The external environmental information and wind speed for obtaining each self-test of at least one anemometer tower in the wind power plant, as second group of external environment data and second group of air speed data；Using first group of external environment data and second group of external environment data, the external environment integrated value of the external environmental information is calculated；The combined wind velocity of the wind power plant is calculated using first group of air speed data and second group of air speed data；Based on the external environment integrated value and the combined wind velocity, determine whether the blade of the multiple wind power generating set freezes.
Description
Technical field
The application all things considered is related to technical field of wind power generation, more particularly, is related to a kind of determining wind-driven generator
The method and apparatus that group blade freezes.
Background technique
The region that temperature is low, height above sea level, humidity are big, it is easy to the blade of wind power generating set be caused to freeze.On the one hand, leaf
Piece icing will lead to blade overload, and blade aerodynamic performance declines and then make wind power generating set output drop；On the other hand, due to
Load is unevenly distributed, and may cause that unit vibration is excessive or even leaf destruction, influences leaf longevity.In addition, being rotated through in impeller
Easily there is ice cube and falls off when the ice sheet adhesion decline on blade in Cheng Zhong, to overhead power transmission line cable, livestock around blower with
And vehicle and personnel cause security threat.
Traditional judges that the method that blade freezes is to determine by the way that naked eyes are intuitive, but this method is multiple in the landform of wind power plant
It is restricted under miscellaneous or low visibility weather condition.Existing automatic judging method is usually the leaf for utilizing wind power generating set
The relationship characteristic of wind speed and data unit operation that piece freezes later and experience judge whether blade freezes, but this method according to
Rely the data detected in unit itself, once the sensor failure of unit or data are disturbed, may cause erroneous judgement.In addition,
In one wind power plant, blade icing tends to occur multiple units in wind power plant, and current judgment method is based on single unit,
Lack the system judgment method of the blade icing to the wind power generating set of entire wind power plant.
Summary of the invention
Embodiments herein is designed to provide a kind of method and apparatus that determining wind generator set blade freezes,
By integrating the measurement data of the anemometer tower in wind power plant and the measurement data of wind power generating set, in the object for meeting external environment
In the case where managing ice-formation condition, the theoretical output power and real output of wind power plant are compared, to judge the wind in wind power plant
Whether the blade of power generator group freezes.
One side according to an embodiment of the present application provides a kind of method that determining wind generator set blade freezes,
It is characterized in that, the method may include：Obtain the external environmental information of each self-test of multiple wind power generating sets in wind power plant
And wind speed, as first group of external environment data and first group of air speed data；At least one obtained in the wind power plant surveys wind
The external environmental information and wind speed of each self-test of tower, as second group of external environment data and second group of air speed data；Use
One group of external environment data and second group of external environment data, calculate the external environment integrated value of the external environmental information；Make
The combined wind velocity of the wind power plant is calculated with first group of air speed data and second group of air speed data；It is comprehensive based on the external environment
Value and the combined wind velocity, determine whether the blade of the multiple wind power generating set freezes.
Optionally, it is based on the external environment integrated value and the combined wind velocity, determines the multiple wind power generating set
Blade the step of whether freezing may include：The power output theory total value of the wind power plant is calculated using the combined wind velocity,
And it is compared with the practical total value of the power output of the wind power plant；If difference as comparative result is set greater than difference power
Value, and the external environment integrated value meets external environment setting value condition, it is determined that the multiple wind power generating set
Blade freezes.
Optionally, the external environmental information may include environment temperature and ambient humidity, and the external environment integrated value can
Including temperature integrated value and humidity integrated value.
Optionally, the external environment setting value condition refers to that the temperature integrated value is less than desired temperature, and institute
Humidity integrated value is stated greater than humidity set point.
Optionally, the step of calculating the external environment integrated value of the external environmental information may include：It calculates outside first group
The temperature averages of portion's environmental data and all ambient temperature datas in second group of external environment data, it is comprehensive as the temperature
Conjunction value；The humidity for calculating all ambient humidity data in first group of external environment data and second group of external environment data is average
Value, as the humidity integrated value.
Optionally, the method may also include：In the step of calculating the external environment integrated value of the external environmental information
Before, pretreatment is executed to first group of external environment data and second group of external environment data, wherein execute pretreated step
May include：It is pre- that first is rejected from all ambient temperature datas in first group of external environment data and second group of external environment data
The extreme ambient temperature data of fixed number amount；All environment from first group of external environment data and second group of external environment data
Humidity data rejects the extreme environment humidity data of the second predetermined quantity；Remaining ambient temperature data and environmental wet after rejecting
Degree evidence calculates separately the temperature integrated value and the humidity integrated value.
Optionally, the step of extreme ambient temperature data of the first predetermined quantity of rejecting may include：By first group of external rings
All ambient temperature datas in border data and second group of external environment data carry out descending sort；M before rejecting1Environment temperature
Data and rear m2Ambient temperature data, wherein the step of rejecting the extreme environment humidity data of the second predetermined quantity may include：
All ambient humidity data in first group of external environment data and second group of external environment data are subjected to descending sort；It rejects
Preceding n1Ambient humidity data and rear n2Ambient humidity data, wherein m1、m2、n1、n2For the integer more than or equal to 1, m1With m2
And be equal to first predetermined quantity, n1With n2And be equal to second predetermined quantity.
Optionally, the step of power output theory total value of the wind power plant is calculated using the combined wind velocity may include：
The respective power output theoretical value of the wind power generating set being incorporated into the power networks in the wind power plant is calculated using the combined wind velocity；It will
The respective power output theoretical value calculated is added, and obtains the power output theory total value of the wind power plant.
Optionally, the respective function of wind power generating set being incorporated into the power networks in the wind power plant is calculated using the combined wind velocity
Rate export theoretical value the step of may include：By in the respective theoretical power curve of the wind power generating set being incorporated into the power networks with it is described comprehensive
The corresponding performance number of wind speed is closed, as the respective power output theoretical value of wind power generating set being incorporated into the power networks.
Another aspect according to an embodiment of the present application provides a kind of device that determining wind generator set blade freezes,
It is characterized in that, described device may include：First obtains module, obtains each self-test of multiple wind power generating sets in wind power plant
External environmental information and wind speed, as first group of external environment data and first group of air speed data；Second obtains module, obtains
The external environmental information and wind speed of each self-test of at least one anemometer tower in the wind power plant, as second group of external environment number
According to second group of air speed data；External environment integrated value computing module, outside first group of external environment data and second group
Environmental data calculates the external environment integrated value of the external environmental information；Combined wind velocity computing module uses first group of wind speed
Data and second group of air speed data calculate the combined wind velocity of the wind power plant；Icing determining module, it is comprehensive based on the external environment
Conjunction value and the combined wind velocity, determine whether the blade of the multiple wind power generating set freezes.
Optionally, it is based on the external environment integrated value and the combined wind velocity, determines the multiple wind power generating set
Blade the step of whether freezing may include：The power output theory total value of the wind power plant is calculated using the combined wind velocity,
And it is compared with the practical total value of the power output of the wind power plant；If difference as comparative result is set greater than difference power
Value, and the external environment integrated value meets external environment setting value condition, then and the determining module that freezes determines the multiple wind
The blade of power generator group freezes.
Optionally, the external environmental information may include environment temperature and ambient humidity, and the external environment integrated value can
Including temperature integrated value and humidity integrated value.
Optionally, the external environment setting value condition refers to that the temperature integrated value is less than desired temperature, and institute
Humidity integrated value is stated greater than humidity set point.
Optionally, the step of calculating the external environment integrated value of the external environmental information may include：It calculates outside first group
The temperature averages of portion's environmental data and all ambient temperature datas in second group of external environment data, it is comprehensive as the temperature
Conjunction value；The humidity for calculating all ambient humidity data in first group of external environment data and second group of external environment data is average
Value, as the humidity integrated value.
Optionally, described device may also include：Preprocessing module calculates described outer in external environment comprehensive value computing module
Before the external environment integrated value of portion's environmental information, first group of external environment data and second group of external environment data are executed pre-
Processing, wherein executing pretreated step may include：From first group of external environment data and second group of external environment data
All ambient temperature datas reject the extreme ambient temperature data of the first predetermined quantity；From first group of external environment data and second
All ambient humidity data in group external environment data reject the extreme environment humidity data of the second predetermined quantity；After rejecting
Remaining ambient temperature data and ambient humidity data calculate separately the temperature integrated value and the humidity integrated value.
Optionally, the step of extreme ambient temperature data of the first predetermined quantity of rejecting may include：By first group of external rings
All ambient temperature datas in border data and second group of external environment data carry out descending sort；M before rejecting1Environment temperature
Data and rear m2Ambient temperature data, wherein the step of rejecting the extreme environment humidity data of the second predetermined quantity may include：
All ambient humidity data in first group of external environment data and second group of external environment data are subjected to descending sort；It rejects
Preceding n1Ambient humidity data and rear n2Ambient humidity data, wherein m1、m2、n1、n2For the integer more than or equal to 1, m1With m2
And be equal to first predetermined quantity, n1With n2And be equal to second predetermined quantity.
Optionally, the step of power output theory total value of the wind power plant is calculated using the combined wind velocity may include：
The respective power output theoretical value of the wind power generating set being incorporated into the power networks in the wind power plant is calculated using the combined wind velocity；It will
The respective power output theoretical value calculated is added, and obtains the power output theory total value of the wind power plant.
Optionally, the respective function of wind power generating set being incorporated into the power networks in the wind power plant is calculated using the combined wind velocity
Rate export theoretical value the step of may include：By in the respective theoretical power curve of the wind power generating set being incorporated into the power networks with it is described comprehensive
The corresponding performance number of wind speed is closed, as the respective power output theoretical value of wind power generating set being incorporated into the power networks.
Another aspect according to an embodiment of the present application provides a kind of computer-readable storage for being stored with computer program
Medium, when the computer program realizes what determining wind generator set blade as described above froze when being executed by processor
Method.
Another aspect according to an embodiment of the present application provides a kind of control equipment of wind power generating set, the control
Equipment may include：Processor；Memory is stored with computer program, when the computer program is executed by processor, realizes
The method as described above for determining wind generator set blade and freezing.
Method and apparatus according to an embodiment of the present application judge wind power generating set using the anemometer tower in wind power plant
Blade ice condition, can be improved accuracy of judgement degree and safety, reduce blade icing bring risk.
Detailed description of the invention
By below with reference to be exemplarily illustrated embodiment attached drawing carry out detailed description, embodiments herein it is upper
Stating will become apparent with other objects, features and advantages, it is characterised in that：
Fig. 1 shows the flow chart of the method for the icing of determination wind generator set blade according to an embodiment of the present application；
Fig. 2 shows the structural block diagrams for the device that determination wind generator set blade according to an embodiment of the present application freezes.
Specific embodiment
Now, different exemplary embodiments is more fully described with reference to the accompanying drawings.
Fig. 1 shows the flow chart of the method for the icing of determination wind generator set blade according to an embodiment of the present application.
Referring to Fig.1, in step slo, the external rings of each self-test of multiple wind power generating sets in wind power plant can be obtained
Border information and wind speed, as first group of external environment data and first group of air speed data.
Specifically, the various sensors or detection dress that the wind power generating set itself in wind power plant can be used to be installed
It sets, real-time detection external environmental information and wind speed.Here, external environmental information may include environment temperature and ambient humidity.It is multiple
The external environmental information and air speed data that wind power generating set detects, can be respectively as first group of external environment data and first
Group air speed data.In other words, first group of external environment data may include the ambient temperature data and ring of wind power generating set detection
Border humidity data.First group of air speed data may include the air speed data of wind power generating set detection.
In step S20, the external environmental information and wind of each self-test of at least one anemometer tower in wind power plant can be obtained
Speed, as second group of external environment data and second group of air speed data.
In general, according to the quantity of the wind power generating set in wind power plant, settable one or more anemometer tower in wind power plant.
Anemometer tower can be used for observing the weather information of wind power plant, for example, wind speed, wind direction, environment temperature, ambient humidity, atmospheric pressure etc..
The external environmental information and air speed data that at least one anemometer tower detects, can be respectively as second group of external environment data and
Two groups of air speed datas.In other words, second group of external environment data may include the ambient temperature data and environmental wet of anemometer tower detection
Degree evidence.Second group of air speed data may include the air speed data of anemometer tower detection.
Although describing step S10 in this application to execute before step S20, step S10 can be held after step S20
Row, or both can execute parallel, the application to this with no restriction.
Further, since the actual conditions of each wind power plant are different, the wind power generating set of part wind power plant is not configured for examining
The sensor or detection device for surveying ambient humidity only can detect ambient humidity by anemometer tower in this case.In other words, exist
It in this case, can only include the ambient temperature data of wind power generating set detection in first group of external environment data, without wrapping
Include ambient humidity data.
In step s 30, first group of external environment data and second group of external environment data can be used, calculate the outside
The external environment integrated value of environmental information.
Here, external environment integrated value may be used to indicate external environmental information as described above (that is, environment temperature and environment
Humidity).External environment integrated value may include temperature integrated value and humidity integrated value.In other words, external environment integrated value can be used as
The characterization of environment temperature and ambient humidity.
In one embodiment, the step of calculating the external environment integrated value of the external environmental information may include：It calculates
The temperature averages of first group of external environment data and all ambient temperature datas in second group of external environment data, as temperature
Spend integrated value；Calculate the humidity of all ambient humidity data in first group of external environment data and second group of external environment data
Average value, as humidity integrated value.
For example, can extract in the ambient temperature data and second group of external environment data in first group of external environment data
Ambient temperature data, and the average value of these ambient temperature datas is calculated, as temperature integrated value.It can extract first group of external rings
The ambient humidity data in ambient humidity data and second group of external environment data in the data of border, and calculate these ambient humidities
The average value of data, as humidity integrated value.In addition, being not configured in wind power generating set as described above for detecting environmental wet
In the case where the sensor or detection device of degree, the ambient humidity data in second group of external environment data can be only extracted, and count
The average value for calculating these ambient humidity data, as humidity integrated value.However, being only for example, those skilled in the art can
Understand, the mode for calculating temperature integrated value and humidity integrated value is not limited to calculate the average value and ambient humidity of ambient temperature data
The average value of data.
It in another embodiment, can before the step of calculating the external environment integrated value of the external environmental information
Pretreatment is executed to first group of external environment data and second group of external environment data.
Executing pretreated step may include：Institute from first group of external environment data and second group of external environment data
There is ambient temperature data to reject the extreme ambient temperature data of the first predetermined quantity；From first group of external environment data and second group
All ambient humidity data in external environment data reject the extreme environment humidity data of the second predetermined quantity；It is remained after rejecting
Remaining ambient temperature data and ambient humidity data calculates separately temperature integrated value and humidity integrated value.
For example, the first predetermined quantity and the second predetermined quantity can be according to the quantity of ambient temperature data and ambient humidity data
To predefine.Extreme ambient temperature data and extreme environment humidity data can refer to all ambient temperature datas and all environmental wets
The big data of exception or relative deviation of the degree in, can also only refer in all ambient temperature datas and all ambient humidity data
Relatively large or relatively small data.
The step of rejecting the extreme ambient temperature data of the first predetermined quantity may include：By first group of external environment data and
All ambient temperature datas in second group of external environment data carry out descending sort；M before rejecting1Ambient temperature data and after
m2Ambient temperature data.
The step of rejecting the extreme environment humidity data of the second predetermined quantity may include：By first group of external environment data and
All ambient humidity data in second group of external environment data carry out descending sort；N before rejecting1Ambient humidity data and after
n2Ambient humidity data.
Here, m1、m2、n1、n2For the integer more than or equal to 1, m1With m2And be equal to above-mentioned first predetermined quantity, n1With n2
And be equal to above-mentioned second predetermined quantity.In addition, the mode for rejecting Outliers is merely illustrative, the application is without being limited thereto, ability
The other modes of the prior art can be used to reject Outliers for field technique personnel.
It is compared using the external environment data that the weather information of wind power plant anemometer tower is detected with blower itself, rejects nothing
The data of effect, it is ensured that under conditions of external environment meets icing really, then it is real by comparison anemometer tower prediction power and wind power plant
Border output power come relatively accurate judgement wind power plant turbines vane ice condition, identification be entire wind power plant fan blade
Ice condition, while also avoiding making because single blower relies on the external environment data inaccuracy that blower itself detects merely
At erroneous judgement problem.
In step s 40, first group of air speed data and second group of air speed data can be used to calculate the combined wind velocity of wind power plant.
Similar with external environment integrated value, combined wind velocity can be used as the characterization of the wind speed of wind power plant.For example, can calculate by wind
The average value of first group of air speed data of power generator group detection and second group of air speed data by anemometer tower detection, as synthesis
Wind speed.
Although describing step S30 in this application to execute before step S40, step S30 can be held after the step s 40
Row, or both can execute parallel, the application to this with no restriction.
In step s 50, it can be based on external environment integrated value and combined wind velocity, determine the blade of multiple wind power generating sets
Whether freeze.
In one embodiment, it is based on external environment integrated value and combined wind velocity, determines the leaf of multiple wind power generating sets
The step of whether piece freezes may include：Using combined wind velocity calculate wind power plant power output theory total value, and with wind power plant
The practical total value of power output is compared；If difference as comparative result is greater than difference power setting value, and external environment
Integrated value meets external environment setting value condition, it is determined that the blade of multiple wind power generating sets freezes.
Here, external environment setting value condition refers to that temperature integrated value is less than desired temperature, and humidity integrated value is big
In humidity set point.Desired temperature and humidity set point can be pre-arranged.External environment setting value condition can be blade
The physical condition of icing.
In one embodiment, may include using the step of power output theory total value of combined wind velocity calculating wind power plant：
The respective power output theoretical value of wind power generating set being incorporated into the power networks in wind power plant is calculated using combined wind velocity；By each of calculating
From power output theoretical value be added, obtain the power output theory total value of wind power plant.
In one embodiment, the respective function of wind power generating set being incorporated into the power networks in wind power plant is calculated using combined wind velocity
Rate export theoretical value the step of may include：By in the respective theoretical power curve of the wind power generating set being incorporated into the power networks with comprehensive wind
The corresponding performance number of speed, as the respective power output theoretical value of wind power generating set being incorporated into the power networks.
For example, in general, the operating status of each wind power generating set can be obtained by the detection device of wind power generating set
Information, including shut down, is standby, start, is grid-connected etc..The theoretical power curve for each wind power generating set being incorporated into the power networks can be chosen
In corresponding performance number under the combined wind velocity of calculating, the power output as each wind power generating set being incorporated into the power networks manages
By value.Theoretical power curve can indicate the theoretical output power of wind power generating set and the corresponding relationship of wind speed.Theoretical power (horse-power) is bent
Line can be stored in advance in the control server of wind power plant.
As described above, the respective power output theoretical value of the wind power generating set being incorporated into the power networks is added, wind-powered electricity generation can be obtained
The power output theory total value of field.Then, the practical total value of the power output of power output theory total value and wind power plant can be carried out
Compare.If difference as comparative result is greater than difference power setting value, and external environment integrated value meets external environment and sets
Certification condition, it is determined that the blade of multiple wind power generating sets in wind power plant freezes.
For example, the difference of power output theory total value Yu the practical total value of power output can be calculated.Difference power can be preset
Setting value.When above-mentioned difference is greater than difference power setting value, indicates that the real output of wind power plant exists and largely drop
It is low.At this point, being set if temperature integrated value is less than temperature if external environment integrated value meets external environment setting value condition
It is worth and humidity integrated value is greater than humidity set point, then can determine that the blade of the wind power generating set in wind power plant freezes, and pass through
Control server issues alarm, to take subsequent control measure.
If external environment setting value condition does not meet simultaneously with difference power setting value condition, i.e., if external environment is comprehensive
Value is unsatisfactory for the difference of external environment setting value condition or calculating no more than difference power setting value, it is determined that the wind in wind power plant
The blade of power generator group does not freeze, at this point, method can return to step S10, continues to obtain first group of external environment data and the
One group of air speed data.
Fig. 2 shows the structural block diagrams for the device that determination wind generator set blade according to an embodiment of the present application freezes.
Referring to Fig. 2, the device 100 that determination wind generator set blade according to an embodiment of the present application freezes may include the
One, which obtains module 10, second, obtains module 20, external environment integrated value computing module 30, combined wind velocity computing module 40 and freezes
Determining module 50.
First acquisition module 10 can obtain the external environmental information of each self-test of multiple wind power generating sets in wind power plant
And wind speed, as first group of external environment data and first group of air speed data.
The various sensors or detection device that wind power generating set itself in wind power plant is installed can be outside real-time detections
Environmental information and wind speed.Here, external environmental information may include environment temperature and ambient humidity.Multiple wind power generating set detections
The external environmental information and air speed data arrived, can be respectively as first group of external environment data and first group of air speed data.Change speech
It, first group of external environment data may include the ambient temperature data and ambient humidity data of wind power generating set detection.First
Group air speed data may include the air speed data of wind power generating set detection.
Second acquisition module 20 can obtain each self-test of at least one anemometer tower in wind power plant external environmental information and
Wind speed, as second group of external environment data and second group of air speed data.
The external environmental information and air speed data that at least one anemometer tower detects, can be respectively as second group of external environment
Data and second group of air speed data.In other words, second group of external environment data may include the ambient temperature data of anemometer tower detection
With ambient humidity data.Second group of air speed data may include the air speed data of anemometer tower detection.
First group of external environment data and second group of external environment data can be used in external environment integrated value computing module 30,
Calculate the external environment integrated value of the external environmental information.
Here, external environment integrated value may be used to indicate external environmental information as described above (that is, environment temperature and environment
Humidity).External environment integrated value may include temperature integrated value and humidity integrated value.In other words, external environment integrated value can be used as
The characterization of environment temperature and ambient humidity.
In one embodiment, the step of calculating the external environment integrated value of the external environmental information may include：It calculates
The temperature averages of first group of external environment data and all ambient temperature datas in second group of external environment data, as temperature
Spend integrated value；Calculate the humidity of all ambient humidity data in first group of external environment data and second group of external environment data
Average value, as humidity integrated value.
For example, external environment integrated value computing module 30 can extract the ambient temperature data in first group of external environment data
With the ambient temperature data in second group of external environment data, and the average value of these ambient temperature datas is calculated, as temperature
Integrated value.External environment integrated value computing module 30 can extract the ambient humidity data and second in first group of external environment data
Ambient humidity data in group external environment data, and the average value of these ambient humidity data is calculated, as humidity integrated value.
However, example is only for, it will be appreciated by those skilled in the art that the mode for calculating temperature integrated value and humidity integrated value is not limited to
Calculate the average value of ambient temperature data and the average value of ambient humidity data.
In another embodiment, device 100 may also include preprocessing module (not shown).In external environment comprehensive value meter
Before calculating the external environment integrated value that module 30 calculates the external environmental information, preprocessing module can be to first group of external environment
Data and second group of external environment data execute pretreatment.
Executing pretreated step may include：Institute from first group of external environment data and second group of external environment data
There is ambient temperature data to reject the extreme ambient temperature data of the first predetermined quantity；From first group of external environment data and second group
All ambient humidity data in external environment data reject the extreme environment humidity data of the second predetermined quantity；It is remained after rejecting
Remaining ambient temperature data and ambient humidity data calculates separately temperature integrated value and humidity integrated value.
For example, the first predetermined quantity and the second predetermined quantity can be according to the quantity of ambient temperature data and ambient humidity data
To predefine.Extreme ambient temperature data and extreme environment humidity data can refer to all ambient temperature datas and all environmental wets
The big data of exception or relative deviation of the degree in, can also only refer in all ambient temperature datas and all ambient humidity data
Relatively large or relatively small data.
The step of rejecting the extreme ambient temperature data of the first predetermined quantity may include：By first group of external environment data and
All ambient temperature datas in second group of external environment data carry out descending sort；M before rejecting1Ambient temperature data and after
m2Ambient temperature data.
The step of rejecting the extreme environment humidity data of the second predetermined quantity may include：By first group of external environment data and
All ambient humidity data in second group of external environment data carry out descending sort；N before rejecting1Ambient humidity data and after
n2Ambient humidity data.
Here, m1、m2、n1、n2For the integer more than or equal to 1, m1With m2And be equal to first predetermined quantity, n1With n2
And be equal to second predetermined quantity.In addition, the mode for rejecting Outliers is merely illustrative, the application is without being limited thereto, ability
The other modes of the prior art can be used to reject Outliers for field technique personnel.
First group of air speed data and second group of air speed data can be used to calculate the comprehensive of wind power plant for combined wind velocity computing module 40
Close wind speed.
Similar with external environment integrated value, combined wind velocity can be used as the characterization of the wind speed of wind power plant.For example, can calculate by wind
The average value of first group of air speed data of power generator group detection and second group of air speed data by anemometer tower detection, as synthesis
Wind speed.
Icing determining module 50 can be based on external environment integrated value and combined wind velocity, determine the leaf of multiple wind power generating sets
Whether piece freezes.
In one embodiment, it is based on external environment integrated value and combined wind velocity, determines the leaf of multiple wind power generating sets
The step of whether piece freezes may include：Using combined wind velocity calculate wind power plant power output theory total value, and with wind power plant
The practical total value of power output is compared；If difference as comparative result is greater than difference power setting value, and external environment
Integrated value meets external environment setting value condition, then the determining module that freezes 50 determines that the blade of multiple wind power generating sets freezes.
Here, external environment setting value condition refers to that temperature integrated value is less than desired temperature, and humidity integrated value is big
In humidity set point.Desired temperature and humidity set point can be pre-arranged.External environment setting value condition can be blade
The physical condition of icing.
In one embodiment, may include using the step of power output theory total value of combined wind velocity calculating wind power plant：
The respective power output theoretical value of wind power generating set being incorporated into the power networks in wind power plant is calculated using combined wind velocity；By each of calculating
From power output theoretical value be added, obtain the power output theory total value of wind power plant.
In one embodiment, the respective function of wind power generating set being incorporated into the power networks in wind power plant is calculated using combined wind velocity
Rate export theoretical value the step of may include：By in the respective theoretical power curve of the wind power generating set being incorporated into the power networks with comprehensive wind
The corresponding performance number of speed, as the respective power output theoretical value of wind power generating set being incorporated into the power networks.
For example, in general, the detection device of wind power generating set can obtain the running state information of each wind power generating set,
Including shutdown, standby, starting, grid-connected etc..Icing determining module 50 can choose the reason for each wind power generating set being incorporated into the power networks
By the corresponding performance number in power curve under the combined wind velocity of calculating, as each wind power generating set being incorporated into the power networks
Power output theoretical value.Theoretical power curve can indicate the theoretical output power of wind power generating set and the corresponding relationship of wind speed.
Theoretical power curve can be stored in advance in the control server of wind power plant.
As described above, icing determining module 50 is by the respective power output theoretical value phase of the wind power generating set being incorporated into the power networks
Add, the power output theory total value of wind power plant can be obtained.Then, icing determining module 50 can be by power output theory total value and wind
The practical total value of the power output of electric field is compared.If difference as comparative result is greater than difference power setting value, and outer
Portion's environment comprehensive value meets external environment setting value condition, then the determining module that freezes 50 determines multiple wind-power electricity generations in wind power plant
The blade of unit freezes.
For example, icing determining module 50 can calculate the difference of power output theory total value Yu the practical total value of power output.Function
Rate difference setting value can be preset.When above-mentioned difference is greater than difference power setting value, indicate that the real output of wind power plant is deposited
Largely reducing.At this point, if external environment integrated value meets external environment setting value condition, i.e., if it is temperature integrated
Value is less than desired temperature and humidity integrated value is greater than humidity set point, then the determining module that freezes 50 can determine the wind in wind power plant
The blade of power generator group freezes, and is issued and alerted by control server, to take subsequent control measure.
If external environment setting value condition does not meet simultaneously with difference power setting value condition, i.e., if external environment is comprehensive
Value is unsatisfactory for the difference of external environment setting value condition or calculating no more than difference power setting value, then the determining module that freezes 50 is true
The blade for determining the wind power generating set in wind power plant does not freeze, at this point, the first acquisition module 10 can continue to obtain outside first group
Environmental data and first group of air speed data, the second acquisition module 20 can continue to obtain second group of external environment data and second group of wind
Fast data.
A kind of control equipment is also provided according to an embodiment of the present application.For example, the control equipment can be wind-driven generator
The master controller of group, it should be noted that example is only for, for example, the control equipment can be and be connect with wind power generating set to control
Other control equipment of wind power generating set operation.The control equipment may include processor and memory.Memory is for storing
Computer program.The computer program is executed by processor so that processor executes determining wind power generating set as described above
The computer program for the method that blade freezes.
A kind of computer readable storage medium being stored with computer program is also provided according to an embodiment of the present application.The meter
Calculation machine readable storage medium storing program for executing is stored with makes processor execute above-mentioned determining wind generator set blade when being executed by a processor
The computer program of the method for icing.The computer readable recording medium is can to store appointing for the data read by computer system
Meaning data storage device.The example of computer readable recording medium includes：Read-only memory, random access memory, read-only light
Disk, tape, floppy disk, optical data storage devices and carrier wave (are such as passed through wired or wireless transmission path by the data of internet
It is defeated).
According to the method and apparatus that the determination wind generator set blade of the application freezes, the survey wind in wind power plant can be integrated
The measurement data of tower and the measurement data of wind power generating set are right in the case where meeting the physics ice-formation condition of external environment
Than the theoretical output power and real output of wind power plant, so that it is determined that the blade of the wind power generating set in wind power plant whether
It freezes, solves people and detect by an unaided eye the limitation of judgement.
The application introduces the measurement data of anemometer tower to judge whether blade freezes, and can be improved the accuracy and peace of judgement
Quan Xing reduces blade icing bring risk.
The application makes full use of the meteorological resources of wind power plant anemometer tower to solve the icing of wind electric field blower blade and be difficult to automatically
The problem of identification and detection inaccuracy.Using anemometer tower hardware system and central monitoring software systems in conjunction with fan operation state
And data information, judgement wind electric field blower blade ice condition that can be relatively accurate simultaneously alert operator on duty in time, so as to and
When take measures on customs clearance, guarantee safety and reduce blade icing bring risk.
Although being particularly shown and describing the application referring to the application exemplary embodiment, the technology of this field
Personnel can carry out it should be understood that in the case where not departing from spirit and scope defined by claim
Various changes in form and details.
Claims (20)
1. a kind of method that determining wind generator set blade freezes, which is characterized in that the method includes：
The external environmental information and wind speed for obtaining each self-test of multiple wind power generating sets in wind power plant, outside first group
Environmental data and first group of air speed data；
The external environmental information and wind speed for obtaining each self-test of at least one anemometer tower in the wind power plant, as second group outside
Portion's environmental data and second group of air speed data；
Using first group of external environment data and second group of external environment data, the external environmental information is calculated
External environment integrated value；
The combined wind velocity of the wind power plant is calculated using first group of air speed data and second group of air speed data；
Based on the external environment integrated value and the combined wind velocity, determine whether the blade of the multiple wind power generating set is tied
Ice.
2. the method according to claim 1, wherein being based on the external environment integrated value and the comprehensive wind
Speed determines that the step of whether blade of the multiple wind power generating set freezes includes：
The power output theory total value of the wind power plant, and the power output with the wind power plant are calculated using the combined wind velocity
Practical total value is compared；
If difference as comparative result is greater than difference power setting value, and the external environment integrated value meets external environment
Setting value condition, it is determined that the blade of the multiple wind power generating set freezes.
3. according to the method described in claim 2, it is characterized in that, the external environmental information includes environment temperature and environmental wet
Degree, the external environment integrated value includes temperature integrated value and humidity integrated value.
4. according to the method described in claim 3, it is characterized in that, the external environment setting value condition refers to that the temperature is comprehensive
Conjunction value is less than desired temperature, and the humidity integrated value is greater than humidity set point.
5. according to the method described in claim 3, it is characterized in that, calculating the external environment integrated value of the external environmental information
The step of include：
Calculate the temperature-averaging of first group of external environment data and all ambient temperature datas in second group of external environment data
Value, as the temperature integrated value；
The humidity for calculating all ambient humidity data in first group of external environment data and second group of external environment data is average
Value, as the humidity integrated value.
6. according to the method described in claim 3, it is characterized in that, further including：In the outside for calculating the external environmental information
Before the step of external environment integrated value of external environmental information described in environment comprehensive value, to first group of external environment data and
Two groups of external environment data execute pretreatment,
Wherein, executing pretreated step includes：
It is predetermined that first is rejected from all ambient temperature datas in first group of external environment data and second group of external environment data
The extreme ambient temperature data of quantity；
It is predetermined that second is rejected from all ambient humidity data in first group of external environment data and second group of external environment data
The extreme environment humidity data of quantity；
Remaining ambient temperature data and ambient humidity data calculate separately the temperature integrated value and the humidity after rejecting
Integrated value.
7. according to the method described in claim 6, it is characterized in that, rejecting the extreme ambient temperature data of the first predetermined quantity
Step includes：
All ambient temperature datas in first group of external environment data and second group of external environment data are subjected to descending sort；
M before rejecting1Ambient temperature data and rear m2Ambient temperature data,
Wherein, the step of extreme environment humidity data of the second predetermined quantity of rejecting includes：
All ambient humidity data in first group of external environment data and second group of external environment data are subjected to descending sort；
N before rejecting1Ambient humidity data and rear n2Ambient humidity data,
Wherein, m1、m2、n1、n2For the integer more than or equal to 1, m1With m2And be equal to first predetermined quantity, n1With n2Sum
Equal to second predetermined quantity.
8. according to the method described in claim 2, it is characterized in that, calculating the power of the wind power plant using the combined wind velocity
The step of exporting theoretical total value include：
It is theoretical that the respective power output of the wind power generating set being incorporated into the power networks in the wind power plant is calculated using the combined wind velocity
Value；
The respective power output theoretical value of calculating is added, the power output theory total value of the wind power plant is obtained.
9. according to the method described in claim 8, it is characterized in that, being calculated using the combined wind velocity grid-connected in the wind power plant
The step of wind power generating set of operation respective power output theoretical value includes：
By performance number corresponding with the combined wind velocity in the respective theoretical power curve of the wind power generating set being incorporated into the power networks, make
For the respective power output theoretical value of wind power generating set being incorporated into the power networks.
10. the device that a kind of determining wind generator set blade freezes, which is characterized in that described device includes：
First obtains module, obtains the external environmental information and wind speed of each self-test of multiple wind power generating sets in wind power plant,
As first group of external environment data and first group of air speed data；
Second obtains module, obtains the external environmental information and wind of each self-test of at least one anemometer tower in the wind power plant
Speed, as second group of external environment data and second group of air speed data；
External environment integrated value computing module calculates institute using first group of external environment data and second group of external environment data
State the external environment integrated value of external environmental information described in the external environment integrated value of external environmental information；
Combined wind velocity computing module calculates the synthesis wind of the wind power plant using first group of air speed data and second group of air speed data
Speed；
Icing determining module is based on the external environment integrated value and the combined wind velocity, determines the multiple wind-driven generator
Whether the blade of group freezes.
11. device according to claim 10, which is characterized in that be based on the external environment integrated value and the comprehensive wind
Speed determines that the step of whether blade of the multiple wind power generating set freezes includes：
The power output theory total value of the wind power plant, and the power output with the wind power plant are calculated using the combined wind velocity
Practical total value is compared；
If difference as comparative result is greater than difference power setting value, and the external environment integrated value meets external environment
Setting value condition, the then determining module that freezes determine that the blade of the multiple wind power generating set freezes.
12. device according to claim 11, which is characterized in that the external environmental information includes environment temperature and environment
Humidity, the external environment integrated value include temperature integrated value and humidity integrated value.
13. device according to claim 12, which is characterized in that the external environment setting value condition refers to the temperature
Integrated value is less than desired temperature, and the humidity integrated value is greater than humidity set point.
14. device according to claim 12, which is characterized in that the external environment for calculating the external environmental information is comprehensive
The step of being worth the external environment integrated value of the external environmental information include：
Calculate the temperature-averaging of first group of external environment data and all ambient temperature datas in second group of external environment data
Value, as the temperature integrated value；
The humidity for calculating all ambient humidity data in first group of external environment data and second group of external environment data is average
Value, as the humidity integrated value.
15. device according to claim 12, which is characterized in that further include：Preprocessing module, in external environment comprehensive value
Before computing module calculates the external environment integrated value of the external environmental information, to first group of external environment data and second group
External environment data execute pretreatment,
Wherein, executing pretreated step includes：
It is predetermined that first is rejected from all ambient temperature datas in first group of external environment data and second group of external environment data
The extreme ambient temperature data of quantity；
It is predetermined that second is rejected from all ambient humidity data in first group of external environment data and second group of external environment data
The extreme environment humidity data of quantity；
Remaining ambient temperature data and ambient humidity data calculate separately the temperature integrated value and the humidity after rejecting
Integrated value.
16. device according to claim 15, which is characterized in that reject the extreme ambient temperature data of the first predetermined quantity
The step of include：
All ambient temperature datas in first group of external environment data and second group of external environment data are subjected to descending sort；
M before rejecting1Ambient temperature data and rear m2Ambient temperature data,
Wherein, the step of extreme environment humidity data of the second predetermined quantity of rejecting includes：
All ambient humidity data in first group of external environment data and second group of external environment data are subjected to descending sort；
N before rejecting1Ambient humidity data and rear n2Ambient humidity data,
Wherein, m1、m2、n1、n2For the integer more than or equal to 1, m1With m2And be equal to first predetermined quantity, n1With n2Sum
Equal to second predetermined quantity.
17. device according to claim 11, which is characterized in that calculate the function of the wind power plant using the combined wind velocity
Rate exports the step of theoretical total value and includes：
It is theoretical that the respective power output of the wind power generating set being incorporated into the power networks in the wind power plant is calculated using the combined wind velocity
Value；
The respective power output theoretical value of calculating is added, the power output theory total value of the wind power plant is obtained.
18. device according to claim 17, which is characterized in that calculated in the wind power plant simultaneously using the combined wind velocity
The step of netting the wind power generating set respective power output theoretical value of operation include：
By performance number corresponding with the combined wind velocity in the respective theoretical power curve of the wind power generating set being incorporated into the power networks, make
For the respective power output theoretical value of wind power generating set being incorporated into the power networks.
19. a kind of computer readable storage medium for being stored with computer program, when the computer program is held by processor
The method that determination wind generator set blade described in any one of claim 1 to 9 freezes is realized when row.
20. a kind of control equipment of wind power generating set, the control equipment include：
Processor；
Memory is stored with computer program, when the computer program is executed by processor, realizes in claim 1 to 9
The method that freezes of described in any item determining wind generator set blades.
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Address after: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: Jinfeng Technology Co.,Ltd. Address before: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd. |