CN108119318A - Wind turbine technological transformation effect of optimization appraisal procedure and its system based on unit wind measuring system - Google Patents
Wind turbine technological transformation effect of optimization appraisal procedure and its system based on unit wind measuring system Download PDFInfo
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- CN108119318A CN108119318A CN201711368507.2A CN201711368507A CN108119318A CN 108119318 A CN108119318 A CN 108119318A CN 201711368507 A CN201711368507 A CN 201711368507A CN 108119318 A CN108119318 A CN 108119318A
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- 230000009466 transformation Effects 0.000 title claims abstract description 91
- 238000005457 optimization Methods 0.000 title claims abstract description 67
- 230000000694 effects Effects 0.000 title claims abstract description 39
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- 238000012545 processing Methods 0.000 claims abstract description 14
- 238000010248 power generation Methods 0.000 claims abstract description 13
- 230000002159 abnormal effect Effects 0.000 claims abstract description 10
- 230000008859 change Effects 0.000 claims description 18
- 238000012544 monitoring process Methods 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 7
- 238000010977 unit operation Methods 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 5
- 241001269238 Data Species 0.000 claims description 3
- 238000012913 prioritisation Methods 0.000 claims description 3
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- 230000007613 environmental effect Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000011156 evaluation Methods 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 3
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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
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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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
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- 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
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/32—Wind speeds
-
- 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
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/321—Wind directions
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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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- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a kind of wind turbine technological transformation effect of optimization appraisal procedures and its system based on unit wind measuring system, belong to fan monitor field, including the anemometer being located in cabin, include the following steps：1) wind measuring system is calibrated：It determines target unit, and calibrates unit wind measuring system, exclude deviation；2) reduced time section is selected；3) data acquisition and processing：It measures and calculates actual motion power curve, wind speed profile and actual power generation in the front and rear reduced time section of technological transformation optimization, and compare respectively；Simultaneously for unit wind measuring system data, the distribution of respective difference and variance rate compared with wind speed is calculated, and is compared；4) interpretation of result and result judge：Comprehensive each data comparison is as a result, exclude abnormal results, effective reference data as technological transformation effect of optimization.The present invention excludes exception by multiple data targets, considers that entire unit wind measuring system data test that may be present is abnormal, improves evaluating ability and the accuracy of technological transformation effect of optimization as far as possible.
Description
Technical field
The present invention relates to fan monitor fields, optimize effect more particularly to a kind of wind turbine technological transformation based on unit wind measuring system
Fruit appraisal procedure and its system.
Background technology
Evaluation and Optimizing Reconstruction stage after entering with Wind Power Generation Industry, various types of wind turbine technological transformation optimization methods become again
Welcome rear market project, but in the implementation and implementation process of various technological transformation optimization, how how to evaluate effect of optimization
The influence of environment is reduced as far as possible, and the front and rear generated energy variation of technological transformation optimization is corresponded into technological transformation optimization behavior in itself, becomes skill
Change the very important problem that effect of optimization assessment is faced with Scheme Choice.Section in different times, the state of unit in itself and
Environment residing for unit all differs greatly, using calibration power test come to evaluate in unit different time sections generated energy variation be one
A more accurately mode, but large-scale application, cost is too high in the case of implemented for long periods, especially to the technological transformation that becomes more meticulous
For optimization, vertical anemometer tower is set up to each target machine and carries out power test to determine that the cost that generated energy variation generates can be tight
Weaken the income of technological transformation optimization itself again.It is assessed using fan operation data, if not increasing other specifications, it is difficult to by skill
The variation for changing front and rear generated energy is corresponded to technological transformation optimization originally.
Therefore, it is necessary to provide a kind of appraisal procedure for the evaluating ability and accuracy that can improve technological transformation effect of optimization.
The content of the invention
The object of the present invention is to provide a kind of evaluating ability that can improve technological transformation effect of optimization and accuracy based on machine
The wind turbine technological transformation effect of optimization appraisal procedure and its system of group wind measuring system.
To achieve the above object, the present invention adopts the following technical scheme that：
The present invention provides a kind of wind turbine technological transformation effect of optimization appraisal procedure based on unit wind measuring system, including being located at cabin
On anemometer, include the following steps：
1) wind measuring system is calibrated in advance：It determines to need the target wind field target unit for carrying out technological transformation optimization, and calibrates unit
Wind measuring system, there are severe deviations for wind measuring system during excluding technological transformation optimal enforcement；
2) reduced time section is selected：Before being implemented according to technological transformation in certain time set state come select the reduced time section；
3) data acquisition and processing：It measures and calculates actual motion power song in the front and rear reduced time section of technological transformation optimization
Line, wind speed profile and actual power generation, and compare respectively；While it is directed to the wind speed in unit wind measuring system, wind direction data, meter
The distribution of respective difference and variance rate compared with wind speed is calculated, and is compared；
4) interpretation of result and result judge：Comprehensive each data comparison is as a result, and pre- to unit with reference to technological transformation Optimized Measures
Meter influences, and excludes abnormal results, and technological transformation optimization can most be represented by, which selecting, in itself optimizes the result that unit has an impact as technological transformation
Effective reference data of effect.
Further, the selection of reduced time section need to ensure the front and rear running environment difference of technological transformation optimization in the step 2)
Smaller, the running environment difference small packet includes external environment and changes in small and unit the repair or replacement that component greatly is not present.
Further, wind measuring system is calibrated in advance including being examined to target unit airspeedometer wind vane in the step 1)
It looks into, if there are the excessive units of instrument for wind measurement deviation, carries out zero tightening operation of school, and postpone technological transformation optimal enforcement, if unit
Instrument for wind measurement deviation in normal scope, then retain current state and securing instrument, and prepare to implement technological transformation optimization.
Further, the technological transformation prioritization scheme is by controlling single argument to implement.
Further, the data basis of the actual motion power curve in the step 3) per Fans is nacelle wind speed instrument
The power data of data and unit operation monitoring system.
Further, shown in the actual power generation calculation formula such as formula (1)：
Wherein, the λnRepresent the performance number of n-th of wind speed interval in operation power curve, VnFor in operation power curve
The Annual distribution of n-th of wind speed interval.
On the other hand, providing should in a kind of wind turbine technological transformation effect of optimization appraisal procedure based on unit wind measuring system
Assessment system, including unit operation monitoring system, airspeedometer, wind vane and digital sampling and processing：
The operation monitoring system is used to monitor the power data of unit；
The airspeedometer is used to measure wind speed；
The wind vane is used to measure wind direction；
The digital sampling and processing is used to gather wind speed, wind direction after wind measuring system calibration and reduced time section are selected
And other related datas of power data and characterization operating states of the units, and calculation of wind speed measurement numerical quantity difference exists respectively
Distribution and change rate, wind vane measured value difference on wind speed distribution and change rate and actual power generation on wind speed are simultaneously right
It is excellent to change front and rear data and compared.
Further, interpretation of result judgment module is further included；The interpretation of result judgment module, for integrating each data
Comparing result, and abnormal results is excluded, selection can most represent technological transformation optimization originally to unit expected impact with reference to technological transformation Optimized Measures
Body is to effective reference data of the result that unit has an impact as technological transformation effect of optimization.
Due to the adoption of the above technical scheme, the present invention has at least the following advantages：
(1) present invention is that the calculating of generated energy in reduced time section is carried out on the basis of unit wind measuring system data and is commented
Valency and comparison influence comparative part including the reasonable preparation before and after technological transformation optimal enforcement and mainly for wind measuring system
Corresponding specification is carried out, achievees the effect that technological transformation is optimized front and rear generated energy variation as far as possible corresponds to technological transformation optimization itself.It is right
The implementation of technological transformation optimization and effect assessment provide scheme and data are supported.
(2) present invention is gradually being directed to independent unit essence compared with anemometer tower is established and data acquisition device is tested
The epoch of layout optimization scheme are refined, attachment cost can be reduced as far as possible.The present invention is mainly used to evaluation and carries out skill to unit
Change the effect after optimization, exclude exception by multiple data targets, consider entire unit wind measuring system data that may be present
Test is abnormal, and the variation of unit generation amount before and after optimization is corresponded to technological transformation as far as possible in itself, improves technological transformation optimization effect as far as possible
The evaluating ability of fruit and accuracy, for the implementation of technological transformation optimization and effect assessment and conceptual design providing method and thinking.
Description of the drawings
Above-mentioned is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, below
With reference to attached drawing, the present invention is described in further detail with specific embodiment.
Fig. 1 is the wind turbine technological transformation effect of optimization appraisal procedure flow chart the present invention is based on unit wind measuring system.
Specific embodiment
The present invention provides a kind of one embodiment of the wind turbine technological transformation effect of optimization appraisal procedure based on unit wind measuring system,
Including the anemometer being located in cabin, anemometer can include airspeedometer and wind vane, as shown in Figure 1, including the following steps：
1) wind measuring system is calibrated in advance：It determines to need the target wind field target unit for carrying out technological transformation optimization, and calibrates unit
Wind measuring system, there are severe deviations for wind measuring system during excluding technological transformation optimal enforcement；
2) reduced time section is selected：Before being implemented according to technological transformation in certain time set state come select the reduced time section；
3) data acquisition and processing：It measures and calculates actual motion power song in the front and rear reduced time section of technological transformation optimization
Line, wind speed profile and actual power generation, and compare respectively；While it is directed to the wind speed in unit wind measuring system, wind direction data, meter
The distribution of respective difference and variance rate compared with wind speed is calculated, and is compared；
4) interpretation of result and result judge：Comprehensive each data comparison is as a result, and pre- to unit with reference to technological transformation Optimized Measures
Meter influences, and excludes abnormal results, and technological transformation optimization can most be represented by, which selecting, in itself optimizes the result that unit has an impact as technological transformation
Effective reference data of effect.
In the use of the present invention, by first calibrating in advance, suitable reduced time section is chosen after then calibration is suitable, is carried out
The calculating of generated energy and evaluation and comparison in reduced time section, then carry out data acquisition and processing, including following situation：
Actual power generation --- actual motion power and the corresponding wind speed profile sum of products.
Airspeedometer difference distribution --- distribution of two Anemometer numerical quantity differences on wind speed.
Wind vane difference distribution --- distribution of the wind vane measured value difference on wind speed.
Wind speed the change of divergence rate --- change rate of the Anemometer magnitude difference on wind speed.
Wind direction the change of divergence rate --- change rate of the wind vane measured value difference on wind speed.
Corresponding data evaluates and screens --- with reference to unit actual motion power curve, generated energy, wind measuring system data difference table
Now comparing result accuracy is evaluated, determines data reasonability and final generated energy comparing result.
More accurately assess conversion result to reduce external disturbance, in step 2) selection of reduced time section need to ensure skill
It is smaller to change the front and rear running environment difference of optimization, running environment difference small packet include that external environment variation is small and unit in be not present
The repair or replacement of big component.
Further, wind measuring system is calibrated in advance including checking target unit airspeedometer wind vane in step 1),
If there are the excessive units of instrument for wind measurement deviation, zero tightening operation of school is carried out, and postpones technological transformation optimal enforcement, if the survey of unit
Wind instrumental bias then retains current state and securing instrument in normal scope, and prepares to implement technological transformation optimization.
Specifically, target unit airspeedometer wind vane is checked.The unit excessive to instrument for wind measurement deviation, carries out school
Zero tightening operation, and suitably postpone technological transformation optimal enforcement, the time 20 days or more reserved collects basic data, subsequently to count
According to the reference influenced in processing procedure as wind measuring system Data Data, checked again for before follow-up technological transformation optimal enforcement starts
And securing instrument.For the little unit of wind measuring system state deviation, retain current state and securing instrument as far as possible, and ensure skill
Change optimization as early as possible to implement.
Further, technological transformation prioritization scheme is by controlling single argument to implement.
Further, the data basis of the actual motion power curve in step 3) per Fans is nacelle wind speed instrument data
With the power data of unit operation monitoring system, wind speed profile includes distribution and wind of the airspeedometer measurement data difference on wind speed
To distribution of the mapping numerical quantity difference on wind speed.
Further, shown in actual power generation calculation formula such as formula (1)：
Wherein, λnRepresent the performance number of n-th of wind speed interval in operation power curve, VnFor n-th in operation power curve
The Annual distribution of wind speed interval.
The method and points for attention that are calculated in more than parameter are described in detail below：
Actual motion power curve：The data basis of actual motion power curve per Fans is nacelle wind speed instrument data
With the power data of unit operation monitoring system, data acquisition is stringent and method for drafting is in strict accordance with national standard《GBT18451.2-
2003 power characteristic of wind driven generator set are tested》In description carry out.The data of nacelle wind speed instrument are not strictly standard
Arrives stream wind speed under meaning, but it has no effect on the correspondence of nacelle wind speed instrument wind speed and the unit output power, simultaneously
It is also calculated into sector-style frequency division cloth using nacelle wind speed instrument when the method calculates electricity, is distributed as 10 minutes according to national regulations
Average wind speed profile, due in the excellent Contrast on effect of technological transformation, being only concerned relative different, so comparison is front and rear to use identical number
According to source.
Data processing：Actual motion power curve and wind speed profile before and after technological transformation optimizes are calculated, and is compared；Before and after calculating
Actual power generation simultaneously compares；For front and rear unit wind measuring system data, respective difference and variance rate are calculated compared with wind speed
Distribution, and compare；If selected reduced time section internal and external environment variation is huge, it is also necessary to consider shadow of the environment temperature to data
It rings.
Interpretation of result and result judge：Comprehensive each data comparison is as a result, and estimated to unit with reference to technological transformation Optimized Measures
It influences, excludes abnormal results, technological transformation optimization can most be represented by selecting optimizes effect to the result that unit has an impact as technological transformation in itself
Effective reference data of fruit.
The technical reform scheme of the present invention, which uses, controls univariate thought, reasonable implementation technical reform scheme, right before and after reasonable selection
Than the period, the operation data front and rear to technological transformation optimization and data difference distribution carry out statistical analysis, calculate unit actual motion
The distribution of the variable quantity and rate of change of power curve and wind speed and direction, comprehensive assessment evaluation.The present invention is by from technological transformation side
Case is designed into the comprehensive analysis of follow-up data processing and analysis comparison, accurately determines technological transformation optimization in itself to unit work(as far as possible
The influence of rate and generated energy excludes the shadow that wind measuring system and set state generate before and after technological transformation optimization there are relatively big difference
It rings, reaches the influence to unit generation amount of accurate evaluation technological transformation optimization as far as possible in itself, effective evaluation technological transformation effect of optimization.
On the other hand, provide what is applied in a kind of wind turbine technological transformation effect of optimization appraisal procedure based on unit wind measuring system
Assessment system, including unit operation monitoring system, airspeedometer, wind vane and digital sampling and processing：
Operation monitoring system is used to monitor the power data of unit；
Airspeedometer is used to measure wind speed；
Wind vane is used to measure wind direction；
Digital sampling and processing is used in after wind measuring system calibration is selected with reduced time section and gathers wind speed, wind direction and power
Data and other related datas for characterizing operating states of the units, and calculation of wind speed measures numerical quantity difference on wind speed respectively
Distribution and change rate, wind vane measured value difference distribution and change rate and actual power generation on wind speed and to excellent change before
Data afterwards are compared.
Further, interpretation of result judgment module is further included；Interpretation of result judgment module, for integrating each data comparison
As a result, and abnormal results is excluded, it is right that selection can most represent technological transformation optimization itself to unit expected impact with reference to technological transformation Optimized Measures
Effective reference data of the result that unit has an impact as technological transformation effect of optimization.
In the use of the present invention, by unit operation monitoring system, airspeedometer and wind vane gathered data, at data
Reason module analysis processing data simultaneously provide evaluation result.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, this
Field technology personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.
Claims (8)
1. a kind of wind turbine technological transformation effect of optimization appraisal procedure based on unit wind measuring system, including the anemometer being located in cabin,
It is characterised in that it includes following steps：
1) wind measuring system is calibrated in advance：It determines to need the target wind field target unit for carrying out technological transformation optimization, and calibrates unit and survey wind
System, there are severe deviations for wind measuring system during excluding technological transformation optimal enforcement；
2) reduced time section is selected：Before being implemented according to technological transformation in certain time set state come select the reduced time section；
3) data acquisition and processing：It measures and calculates actual motion power curve, wind in the front and rear reduced time section of technological transformation optimization
Speed distribution and actual power generation, and compare respectively；While the wind speed in unit wind measuring system, wind direction data are directed to, it calculates each
From difference and variance rate compared with the distribution of wind speed, and compare；
4) interpretation of result and result judge：Comprehensive each data comparison is as a result, and with reference to technological transformation Optimized Measures to the estimated shadow of unit
It rings, excludes abnormal results, select most represent technological transformation optimization in itself to the result that unit has an impact as technological transformation effect of optimization
Effective reference data.
2. the wind turbine technological transformation effect of optimization appraisal procedure according to claim 1 based on unit wind measuring system, feature exist
In, in the step 2) reduced time section selection need to ensure technological transformation optimization before and after running environment difference it is smaller, the operation
Environmental difference small packet includes external environment and changes in small and unit the repair or replacement that component greatly is not present.
3. the wind turbine technological transformation effect of optimization appraisal procedure according to claim 1 based on unit wind measuring system, feature exist
In wind measuring system is calibrated in advance including checking target unit airspeedometer wind vane in the step 1), and wind is surveyed if existing
The excessive unit of instrumental bias then carries out zero tightening operation of school, and postpones technological transformation optimal enforcement, if the instrument for wind measurement deviation of unit
In normal scope, then retain current state and securing instrument, and prepare to implement technological transformation optimization.
4. the wind turbine technological transformation effect of optimization appraisal procedure according to claim 1 based on unit wind measuring system, feature exist
In the technological transformation prioritization scheme is by controlling single argument to implement.
5. the wind turbine technological transformation effect of optimization appraisal procedure according to any one of claims 1 to 4 based on unit wind measuring system,
It is characterized in that, the data basis of the actual motion power curve in the step 3) per Fans is nacelle wind speed instrument data and machine
The power data of group operation monitoring system.
6. the wind turbine technological transformation effect of optimization appraisal procedure according to any one of claims 1 to 4 based on unit wind measuring system,
It is characterized in that, shown in the actual power generation calculation formula such as formula (1)：
<mrow>
<mi>E</mi>
<mi>P</mi>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mn>1</mn>
<mi>n</mi>
</munderover>
<msub>
<mi>&lambda;</mi>
<mi>n</mi>
</msub>
<msub>
<mi>v</mi>
<mi>n</mi>
</msub>
<mo>-</mo>
<mo>-</mo>
<mo>-</mo>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
</mrow>
Wherein, the λnRepresent the performance number of n-th of wind speed interval in operation power curve, VnFor n-th in operation power curve
The Annual distribution of wind speed interval.
7. in a kind of any wind turbine technological transformation effect of optimization appraisal procedure based on unit wind measuring system of claim 1 to 6
The assessment system of application, which is characterized in that including unit operation monitoring system, airspeedometer, wind vane and data acquisition process mould
Block：
The operation monitoring system is used to monitor the power data of unit；
The airspeedometer is used to measure wind speed；
The wind vane is used to measure wind direction；
The digital sampling and processing is used to gather wind speed, wind direction and work(after wind measuring system calibration and reduced time section are selected
Rate data and other related datas for characterizing operating states of the units, and calculation of wind speed measures numerical quantity difference in wind speed respectively
On distribution and change rate, wind vane measured value difference distribution and change rate and actual power generation on wind speed and change to excellent
Front and rear data are compared.
8. that is applied in the wind turbine technological transformation effect of optimization appraisal procedure according to claim 7 based on unit wind measuring system comments
Estimate system, which is characterized in that further include interpretation of result judgment module；The interpretation of result judgment module, for integrating each number
Abnormal results is excluded, selection can most represent technological transformation optimization to unit expected impact according to comparing result, and with reference to technological transformation Optimized Measures
Itself is to effective reference data of the result that unit has an impact as technological transformation effect of optimization.
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| CN110232513A (en) * | 2019-06-04 | 2019-09-13 | 西安热工研究院有限公司 | A kind of pneumatic equipment bladess lengthening correctional effect appraisal procedure |
| CN110566405A (en) * | 2019-08-29 | 2019-12-13 | 北京金风科创风电设备有限公司 | power optimization method and device of wind generating set |
| CN110836171A (en) * | 2018-08-19 | 2020-02-25 | 北京国电思达科技有限公司 | Fan technical improvement optimization effect evaluation method and system based on unit anemometry system |
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