CN105545591B - A kind of method for suppressing wind power generating set Turbulent Flow Effects - Google Patents
A kind of method for suppressing wind power generating set Turbulent Flow Effects Download PDFInfo
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- CN105545591B CN105545591B CN201511020424.5A CN201511020424A CN105545591B CN 105545591 B CN105545591 B CN 105545591B CN 201511020424 A CN201511020424 A CN 201511020424A CN 105545591 B CN105545591 B CN 105545591B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000000694 effects Effects 0.000 title claims abstract description 9
- 238000005259 measurement Methods 0.000 claims description 12
- 238000011217 control strategy Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000010248 power generation Methods 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
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- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- 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
A kind of method for suppressing wind power generating set Turbulent Flow Effects.Described method is when wind power generating set is run, real-time wind speed is measured by anemobiagraph, wind vane measures real-time wind direction, wind driven generator controller is according to the information such as real-time wind speed and real-time wind direction, calculate the turbulent flow factor under real-time wind regime, wind power generating set is controlled using the turbulent flow factor as control targe in wind generating set yaw control process, suppresses influence of the turbulence intensity to wind power generating set, ensures generating efficiency and the life-span of wind power generating set.
Description
Technical field
Suppress the method for Turbulent Flow Effects in the complicated wind regime operation such as high turbulent flow the present invention relates to a kind of wind power generating set.
Background technology
Wind power generating set converts wind energy into the kinetic energy of impeller rotation, passes through gear by blade Rotational Absorption wind energy
Kinetic energy is transmitted (for direct-drive permanent magnet wind power generator group, then without this link) by case, will be dynamic by generator
Electric energy can be converted into, caused electrical energy transportation is gone out finally by power transmission network.
The change of nature apoplexy is sufficiently complex, and its size, direction at every moment are occurring to change, and this is to wind-power electricity generation
Unit safety effectively absorbs wind energy and brings very big challenge.It is that can wind power generating set to by its wind speed and wind first
To measurement possess real-time and accuracy；Next to that wind power generating set is to wind regime, can such as wind speed size and wind vector
Make in time and accurately respond；It is finally that can wind power generating set make prediction to the change of wind regime, this prediction is
Short-term considers from control strategy angle, only considers the wind power generating set that anemobiagraph is the design of lower wind direction here.Anemobiagraph obtains
Wind speed be by the wind speed of blade, and the wind direction that wind vane measures also has been subjected to the influence of impeller rotation wake flow,
I.e. the anemobiagraph can not possibly measure the wind speed and wind speed rate of change in front of wind power generating set, it is also not possible to measure in advance next
Moment is less understood by the wind direction of blower fan, certain wind vector.
Turbulence intensity (turbulence intensity, be abbreviated as TI) refers to the amplitude that 10 minutes wind speed change at random,
The standard deviation of 10 minutes mean wind speeds and the ratio of same period mean wind speed, be born in wind power generating set operation it is normal
Fatigue load, it is one of important parameter of IEC61400-1 fan safes grade classification.Turbulent flow Producing reason mainly has two,
First, when air current flow, friction or retardation, Another reason that air-flow can be by surface roughness are due to air
Air-flow caused by density variation and atmospheric temperature difference moves vertically.Under normal circumstances, above-mentioned two reason often also results in
The generation of turbulent flow.In neutral atmosphere, adiabatic cooling can occur with the rising of itself for air, and be reached with ambient temperature
To thermal balance, therefore in neutral atmosphere, turbulence intensity size depends entirely on roughness of ground surface situation.
Construction of Wind Power early stage, according to the local turbulence intensity of the observation data assessment of anemometer tower, sent out in this, as wind-force
One of group of motors type selecting index.Turbulence intensity is included into type selecting index is gone out in terms of wind power generating set fatigue load
Hair considers that chosen wind power generating set disclosure satisfy that the influence of usual fatigue load caused by turbulence intensity.
Suppressing method for wind power generating set turbulivity and not yet explicitly proposition at present, for turbulence intensity mainly from two
Individual aspect is tackled.On the one hand, wind power generating set is carried out in overall design using turbulence intensity as one of design objective
Consider, but this is a kind of way of passive reply turbulence intensity, and it is to be reached using increasing wind power generating set cost as cost
Reduce high Turbulent Flow Effects；On the other hand, wind power generating set under the influence of high turbulence intensity the performance parameter such as power curve without
Method reaches unit design power curve, how to be to study instantly on influences such as power curve by new algorithm amendment turbulence intensity
A direction.Or both the above method be the cost for increasing wind power generating set to strengthen the adaptability of high turbulence,
The theoretical correction bad to wind power generating set operational effect, all without active the high turbulence intensity of reply to wind-power electricity generation
The influence of unit.
The content of the invention
The purpose of the present invention is to overcome prior art can not actively tackle high turbulence intensity to wind power generating set generating
The shortcomings that influenceing, propose a kind of method for suppressing wind power generating set Turbulent Flow Effects.
The present invention suppresses high turbulent flow using corresponding control strategy to wind-driven generator according to information such as wind speed, wind directions
The influence of group power generation performance.
When wind power generating set is run, real-time wind speed is measured by anemobiagraph, wind vane measures real-time wind direction, wind-force hair
Electric machine controller calculates the turbulent flow factor under real-time wind regime, in wind-driven generator according to the information such as real-time wind speed and real-time wind direction
Wind power generating set is controlled using the turbulent flow factor as control targe in group driftage control process, suppresses turbulence intensity to wind-force
The influence of generating set.
The inventive method step is specific as follows：
(1) wind speed is divided into some wind speed domain WSR by wind turbine generator system controller, is expressed as WSR { S1, S2, S3,
S4..., Sn, wherein S1, S2, S3, S4..., SnWind speed is represented, and n is less than or equal to 10；
(2) the wind speed domain divided according to step 1, is defined as time-domain TCR by time constant corresponding to wind speed domain, is expressed as
TCR{T1, T2, T3, T4..., Tm, wherein T1, T2, T3, T4..., TmRepresent time, a pair of wind speed domain WSR and time-domain TCR 1
Should；
(3) the actual measurement wind speed that anemobiagraph measures is denoted as SReal, actual measurement wind speed S is determined by tabling look-upRealIn the WSR of wind speed domain
Value S, and meet S ∈ WSR, a time T corresponding with S found in time-domain TCR, and meet T ∈ TCR；
(4) the actual measurement wind direction that wind vane measures is denoted as DReal, and survey wind direction DRealWith surveying wind speed SRealFor synchronization
Measured value；
(5) the time T obtained using step 3, the actual measurement wind direction D that step 4 obtainsReal, the turbulent flow factor is obtained according to formula (1)
EReal：
EReal=(DReal-EReal-1)/T+EReal-1 (1)
Wherein EReal-1The turbulent flow factor obtained for a upper computation of Period；
(6) in wind power generating set running, wind turbine generator system controller control wind wheel tracking wind direction so that wind wheel
Angular deviation with wind direction levels off to 0, that is, causes the angle of control wind wheel to level off to the turbulent flow factor.
Wind speed characteristics are incorporated into the control of wind power generating set by above control method, are being realized accurately to the basis of wind
On, weaken influence of the turbulence intensity to wind power generating set fatigue load.
The present invention need not introduce the external equipments such as new sensor, will not increase production cost or device hardware upgrading into
This, can be to realize by the integration processing to existing wind power generating set operation information and optimization to unit allocation algorithm
Suppression to Turbulent Flow Effects.
Brief description of the drawings
Fig. 1 suppresses wind power generating set turbulence intensity schematic diagram for the present invention；
Fig. 2 is schematic flow sheet of the present invention；
Fig. 3 is wind speed domain and the corresponding relation figure of time-domain of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Wind power generating set is run in the area of high turbulence intensity, and its power generation performance and life-span are all affected, and passes through this
The method for inventing the suppression turbulence intensity proposed, weakens influence of the high turbulence intensity to generating set, so as to ensure generating set
Power generation performance and the life-span.
As shown in figure 1, the present invention measures real-time wind speed by the anemobiagraph on wind turbine cabin, wind vane measurement is real-time
Wind direction, wind driven generator controller calculate the turbulent flow factor under real-time wind regime, really according to the information such as real-time wind speed and real-time wind direction
The fixed wind power plant unit is located at high turbulence intensity area, wind speed domain and time-domain is defined, according to real-time wind speed and direction data meter
The turbulent flow factor is calculated, the turbulent flow factor is incorporated into wind driven generator yaw control strategy, is actively pressed down with the driftage control of reality
Influence of the turbulent flow processed to wind-driven generator.
As shown in Fig. 2 the flow of the inventive method is as follows：
Step 01, wind speed domain WSR is defined, calculating time T for step 03 prepares.
Step 02, time-domain TCR is defined, and wind speed domain WSR and time-domain TCR is corresponded, its corresponding relation such as Fig. 3 institutes
Show；
Step 03, Wind turbines actual measurement wind speed pair is calculated according to the corresponding relation of actual measurement wind speed, step 01 and step 02
The time T answered；
Step 04, real-time wind direction corresponding to real-time wind speed is obtained；
Step 05, the turbulent flow factor is calculated；
Step 06, the target using the turbulent flow factor calculated in step 05 as driftage control, wind power generating set control
Device control wind wheel tracking wind direction so that the angular deviation of wind wheel and wind direction levels off to 0, control yaw angle level off to turbulent flow because
Son；
Step 07, monitoring driftage in real time is to the deviation of wind, driftage is leveled off to 0 to the deviation of wind；
Step 08, suppression of the During yaw to turbulence intensity is realized.
Just turbulence intensity is incorporated among wind power generating set control strategy by above flow, turbulence intensity is to wind-force
The influence factor of generating set is participated in wind power generating set control, by yaw system by turbulence intensity to wind-driven generator
The influence of group is suppressed.
Claims (1)
1. a kind of method for suppressing wind power generating set Turbulent Flow Effects, described method pass through when wind power generating set is run
Anemobiagraph measures real-time wind speed, and wind vane measures real-time wind direction, wind driven generator controller according to real-time wind speed and real-time wind direction,
The turbulent flow factor under real-time wind regime is calculated, using the turbulent flow factor is control targe to wind in wind generating set yaw control process
Power generator group is controlled, and suppresses influence of the turbulence intensity to wind power generating set；
It is characterized in that：Described method and step is as follows：
(1) wind speed is divided into some wind speed domain WSR by wind turbine generator system controller, is expressed as WSR { S1, S2, S3, S4...,
Sn, wherein S1, S2, S3, S4..., SnWind speed is represented, and n is less than or equal to 10；
(2) the wind speed domain divided according to step (1), is defined as time-domain TCR by time constant corresponding to wind speed domain, is expressed as
TCR{T1, T2, T3, T4..., Tm, wherein T1, T2, T3, T4..., TmRepresent time, a pair of wind speed domain WSR and time-domain TCR 1
Should；
(3) the actual measurement wind speed that anemobiagraph measures is denoted as SReal, actual measurement wind speed S is determined by tabling look-upRealValue in the WSR of wind speed domain
S, and meet S ∈ WSR, a time T corresponding with S is found in time-domain TCR, and meet T ∈ TCR；
(4) the actual measurement wind direction that wind vane measures is denoted as DReal, and survey wind direction DRealWith surveying wind speed SRealFor the survey of synchronization
It must be worth；
(5) the time T, the actual measurement wind direction D that step (4) obtains obtained using step (3)Real, the turbulent flow factor is obtained according to formula (1)
EReal：
EReal=(DReal-EReal-1)/T+EReal-1 (1)
Wherein EReal-1The turbulent flow factor obtained for a upper computation of Period, T are the time corresponding with S in time-domain TCR；
In wind power generating set running, wind turbine generator system controller control wind wheel tracking wind direction so that wind wheel and wind direction
Angular deviation level off to 0, that is, cause the angle of control wind wheel to level off to turbulent flow factor EReal。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511020424.5A CN105545591B (en) | 2015-12-30 | 2015-12-30 | A kind of method for suppressing wind power generating set Turbulent Flow Effects |
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| CN201511020424.5A CN105545591B (en) | 2015-12-30 | 2015-12-30 | A kind of method for suppressing wind power generating set Turbulent Flow Effects |
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| CN105545591B true CN105545591B (en) | 2018-04-06 |
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| CN109958574B (en) * | 2017-12-22 | 2020-05-05 | 北京金风科创风电设备有限公司 | Load reduction control method and device for wind generating set |
| CN108105030B (en) * | 2017-12-28 | 2019-10-18 | 中国船舶重工集团海装风电股份有限公司 | A kind of yaw calibration method based on blower sensor |
| CN111120219B (en) * | 2018-10-31 | 2021-02-26 | 北京金风科创风电设备有限公司 | Method and device for determining fatigue load of wind generating set |
| CN111120202B (en) * | 2018-10-31 | 2021-07-20 | 北京金风科创风电设备有限公司 | Yaw angle adjusting method, device, medium and equipment of wind generating set |
| CN111828247B (en) * | 2020-07-28 | 2021-06-29 | 中国华能集团清洁能源技术研究院有限公司 | Method, system and device for standardized correction of turbulence power curve |
| CN113469526A (en) * | 2021-06-30 | 2021-10-01 | 华能国际电力股份有限公司广西清洁能源分公司 | Wind power plant sensing system suitable for complex wind area |
| CN113586336B (en) * | 2021-08-10 | 2022-11-25 | 上海电气风电集团股份有限公司 | Control method and control device of wind generating set and computer readable storage medium |
| CN113883009A (en) * | 2021-09-27 | 2022-01-04 | 太原重工股份有限公司 | Wind turbine generator system anemometer angle self-optimization method |
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| JPH1182282A (en) * | 1997-09-11 | 1999-03-26 | Mitsubishi Heavy Ind Ltd | Power control of wind power generator |
| CN102011692A (en) * | 2010-11-26 | 2011-04-13 | 浙江运达风电股份有限公司 | Method for controlling stable operation of wind-powered generator set under different turbulence terrains |
| GB2475865A (en) * | 2009-12-02 | 2011-06-08 | Vestas Wind Sys As | Anti-Oscillation Apparatus And Technique For Securing Wind Turbine Blades Against Oscillations |
| CN102251926A (en) * | 2010-07-15 | 2011-11-23 | 大唐南京自动化有限公司 | Turbulence suppression method of wind driven generator |
-
2015
- 2015-12-30 CN CN201511020424.5A patent/CN105545591B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1182282A (en) * | 1997-09-11 | 1999-03-26 | Mitsubishi Heavy Ind Ltd | Power control of wind power generator |
| GB2475865A (en) * | 2009-12-02 | 2011-06-08 | Vestas Wind Sys As | Anti-Oscillation Apparatus And Technique For Securing Wind Turbine Blades Against Oscillations |
| CN102251926A (en) * | 2010-07-15 | 2011-11-23 | 大唐南京自动化有限公司 | Turbulence suppression method of wind driven generator |
| CN102011692A (en) * | 2010-11-26 | 2011-04-13 | 浙江运达风电股份有限公司 | Method for controlling stable operation of wind-powered generator set under different turbulence terrains |
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