CN106762415A - A kind of method for reducing wind power generating set impeller imbalance ultimate load - Google Patents
A kind of method for reducing wind power generating set impeller imbalance ultimate load Download PDFInfo
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- CN106762415A CN106762415A CN201710050518.XA CN201710050518A CN106762415A CN 106762415 A CN106762415 A CN 106762415A CN 201710050518 A CN201710050518 A CN 201710050518A CN 106762415 A CN106762415 A CN 106762415A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004088 simulation Methods 0.000 claims abstract description 19
- 230000004913 activation Effects 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 230000008859 change Effects 0.000 description 8
- 230000009467 reduction Effects 0.000 description 4
- 240000002853 Nelumbo nucifera Species 0.000 description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 3
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 210000003746 feather Anatomy 0.000 description 2
- 230000035772 mutation Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 244000131316 Panax pseudoginseng Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 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
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0224—Adjusting blade pitch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
- F03D7/043—Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic
- F03D7/045—Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic with model-based controls
-
- 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
- F05B2270/327—Rotor or generator 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
- F05B2270/328—Blade pitch angle
-
- 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
- F05B2270/335—Output power or torque
-
- 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
Landscapes
- 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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
Abstract
The present invention provides a kind of method for reducing wind power generating set impeller imbalance ultimate load, including：S1：Set up the model of wind power generating set；S2：The installed load sensor at the blade root of each blade of the impeller of the wind power generating set；S3：By analog simulation, the impeller of the wind power generating set is respectively under conditions of normal wind regime and limit wind regime, gather the simulation output load of the load transducer under two kinds of simulation wind regime；S4：With reference to the wind regime type and the simulation output load of load transducer of analog simulation, activation threshold value is determined；S5：The measurement parameter of the actual wind regime apparatus for lower wind generating set of collection and the reality output load of the load transducer, judge whether the actual wind regime belongs to limit wind regime according to the measurement parameter；If so, comparing the size of the reality output load and the activation threshold value again, reality output load is equal to or more than the activation threshold value as described, starts independent pitch and is shut down away from control shutdown mode.
Description
Technical field
It is more particularly to a kind of to reduce wind power generating set impeller the present invention relates to the control strategy field of wind power generating set
The method of uneven ultimate load.
Background technology
To absorb wind energy to greatest extent, current Large-scale Wind Turbines all have yaw system.Yaw system with
The wind direction signals that anemoscope is measured, by adjust automatically nacelle position, are realized automatic to wind as input.With cabin longitudinal central axis
It is 0 ° that line is completely superposed with wind direction, and yaw system entry condition is that wind deflection is more than 15 °.So, under normal wind regime, wind direction becomes
Change will not quickly, and wind deflection is at ± 15 °.But, under limit wind regime, turbulivity is very big, and wind direction can undergo mutation, while companion
With there is wind speed mutation.Under this wind regime, yaw system cannot follow wind vector real-time adjustment nacelle position, cause impeller to be subject to
The impact of unbalanced load.It is that wind power generating set starts shuts down strategy, and blade stops according to design from unbalanced load influence
Machine speed rotates to feather position.Even if start shutting down strategy, in stopping process, because impeller unbalanced load is very big, according to
So cause hubload and blade loading bigger than normal.Therefore, the load for how reducing limit wind regime apparatus for lower wind generating set turns into this
Art personnel technical problem urgently to be resolved hurrily.
The content of the invention
The purpose of the present invention is directed to wind power generating set under wind direction catastrophe, and impeller unbalanced load is bigger than normal etc. asks
Topic, there is provided a kind of to reduce the method for wind power generating set impeller imbalance ultimate load, so as to reduce limit wind regime apparatus for lower wind hair
Group of motors load.
It is that, up to above-mentioned purpose, the present invention proposes following technical scheme：
A kind of method for reducing wind power generating set impeller imbalance ultimate load, comprises the following steps：
S1：Set up the model of wind power generating set；
S2：The installed load sensor at the blade root of each blade of the impeller of the wind power generating set；
S3：By analog simulation, the impeller of the wind power generating set is set to be respectively at normal wind regime and limit wind regime
Under the conditions of, gather the simulation output load of the load transducer under two kinds of simulation wind regime；
S4：With reference to the wind regime type and the simulation output load of load transducer of analog simulation, activation threshold value is determined；
S5：The measurement parameter of the actual wind regime apparatus for lower wind generating set of collection and the reality output of the load transducer are carried
Lotus, judges whether the actual wind regime belongs to limit wind regime according to the measurement parameter；If so, compare the reality output again carrying
Lotus and the size of the activation threshold value, reality output load is equal to or more than the activation threshold value, startup independent pitch as described
Shut down away from control shutdown mode.
According to the method for reduction wind power generating set impeller imbalance ultimate load proposed by the present invention, wherein, the wind
The model of power generator group includes the Aerodynamics Model, machine driven system model, generator and the current transformer that are sequentially connected with
Model, electric network model has also been sequentially connected with change oar between the Aerodynamics Model and the generator and current transformer model
Control system, controller and moment controlling system.
According to the method for reduction wind power generating set impeller imbalance ultimate load proposed by the present invention, wherein, the survey
Amount parameter includes propeller pitch angle, power and generator speed.
According to the method for reduction wind power generating set impeller imbalance ultimate load proposed by the present invention, wherein, the load
Lotus sensor is four, be separately mounted to blade root suction side, on the pressure side, leading edge and trailing edge, wherein installed in suction side and pressure
Power side load transducer output be blade root vertical load, installed in leading edge and trailing edge load transducer export be blade root
Horizontal load.
According to the method for reduction wind power generating set impeller imbalance ultimate load proposed by the present invention, wherein, the step
It is that the activation threshold value is determined by the blade root vertical load in rapid S4.
Brief description of the drawings
Fig. 1 is the structural representation of the wind-driven generator group model in the present invention；
Fig. 2 is the schematic view of the mounting position of load transducer in the present invention；
Fig. 3 is that the present invention judges to shut down the flow chart of strategy；
Fig. 4, Fig. 5 are for independent feathering control is shut down and concentration becomes oar and shuts down comparative result figure in the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not paid
Embodiment, belongs to the scope of protection of the invention.
Overall technical architecture of the invention is that first-selection passes through the normal wind regime of analogue simulation and limit wind regime, and by two kinds not
With the wind speed under situation and wind speed input wind-driven generator group model, so as to gather the output of the load transducer on impeller
Numerical value, classification comparing is carried out by the output numerical value to load transducer under different wind regime, draws the institute under in limit wind regime
The least limit load value that load transducer is exported is stated, this least limit load value is just as the follow-up firing level for judging
Value.When wind power generating set under actual wind regime when running, the parameter determinations such as propeller pitch angle, power and generator speed are first passed through
Current wind generating set is in normal wind regime or limit wind regime；If being in normal wind regime, when needing to shut down only with normal
The concentration of rule becomes oar orderly closedown mode；Before the output numerical value in limit wind regime and load transducer has exceeded
The activation threshold value of determination, then need using independent feathering control halt mode.By two kinds of flexible utilizations of halt mode, Ke Yi
Reduce generating set load to greatest extent while reducing power consumption.
On concentrating, feather is shut down and independent pitch is away from shutdown, below does a simple declaration：
Mainly there is concentration variable pitch control to shut down with independent pitch away from shutdown currently used for the mode shut down under limit wind regime.
It is the variable pitch control method for growing up at first to concentrate variable pitch control, also cries unified variable propeller pitch control, and application at present is the most
It is ripe.Unified variable propeller pitch control refers to that the vaned propeller pitch angle of wind-driven generator institute changes identical angle simultaneously.Independent pitch
Control grows up on the basis of unified change oar, and it refers to control law list of each blade of wind-driven generator according to itself
Solely change propeller pitch angle so that three blades have different aerodynamic qualities, therefore can effectively solve to unify in change oar
Due to wind shear effect, tower shadow effect, turbulence effect etc. inevitably the load that causes of disturbing factor when ask and spatially
Uneven problem, so as to reduce the possibility of blade fatigue damage, exports the power of stabilization.
The structural representation of the wind-driven generator group model being applied in the present invention refers to Fig. 1.Each input ginseng in Fig. 1
The meaning that number is represented is as follows：
Ωt- impeller angular velocity of rotation；β-propeller pitch angle；Vv- wind speed；Dv- wind direction；Tt- impeller torque；ωm- generator amature
Angular speed；Tem- generator torque；Tem ref- generator torque；Vconverter- current transformer voltage；Vgrid- line voltage；βref- the phase
Hope propeller pitch angle；βmeasure- angle measurement value；ωmeasure- generator speed measurement value；Pmeasure- power measurement values；
Lmeasure- blade loading measured value.
Wind-driven generator group model in the present invention is not limited to the concrete structure shown in Fig. 1, in the prior art other types
Wind-driven generator group model be applied equally to the present invention.
The installation site of load transducer is respectively mounted as shown in Fig. 2 specifically include four load transducers in the present invention
In the suction side (Suction Side) of blade root, on the pressure side (Pressure Side), leading edge (Leading Edge) and trailing edge
(Trailing Edge), wherein installed in suction side and on the pressure side load transducer output be blade root vertical load My, peace
Mounted in leading edge and trailing edge load transducer export be blade root horizontal load Mx.
On the basis of load transducer is installed, collect the normal wind regime shutdown of analogue simulation and limit wind regime pneumatic shear cuts through
The blade root load data shut down when big.Analysis load data, with reference to simulation result, determines the activation threshold value of blade root load My, makees
The incision condition of logic is shut down for independent feathering control.Further, the independent feathering control based on design of Simulation is shut down into plan
Slightly being transplanted to field controller carries out on-the-spot test, according to the activation threshold value for determining, the propeller pitch angle arrived with reference to actual monitoring, work(
The parameter such as rate and generator speed, starts independent feathering control and shuts down in the case that load data exceedes threshold value under the limit wind regime
Strategy, then starts in the case of remaining and concentrates change oar orderly closedown strategy.Idiographic flow is as shown in Figure 3.
Fully proved by field test, method proposed by the present invention can effectively reduce limit wind regime leeward power generator
Group load.Fig. 4, Fig. 5 are that independent feathering control is shut down and concentrates change oar to shut down Comparative result.Fig. 4 shows to shut down for two kinds and becomes vane angle
Degree, takes independent feathering control halt mode, and becoming propeller angle has additional ripple, and the additional ripple can effectively offset impeller not
Balance thrust.As shown in figure 5, taking independent feathering control to shut down, hubload is substantially reduced.
One of ordinary skill in the art will appreciate that：Accompanying drawing is the schematic diagram of one embodiment, module in accompanying drawing or
Flow is not necessarily implemented necessary to the present invention.
One of ordinary skill in the art will appreciate that：The module in device in embodiment can be according to embodiment description point
It is distributed in the device of embodiment, it is also possible to carry out respective change and be disposed other than in one or more devices of the present embodiment.On
Stating the module of embodiment can merge into a module, it is also possible to be further split into multiple submodule.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
Modified with to the technical scheme described in previous embodiment, or equivalent is carried out to which part technical characteristic；And
These modifications are replaced, and do not make the spirit and model of the essence disengaging embodiment of the present invention technical scheme of appropriate technical solution
Enclose.
Claims (5)
1. a kind of method for reducing wind power generating set impeller imbalance ultimate load, it is characterised in that comprise the following steps：
S1：Set up the model of wind power generating set；
S2：The installed load sensor at the blade root of each blade of the impeller of the wind power generating set；
S3：By analog simulation, the impeller of the wind power generating set is set to be respectively at the condition of normal wind regime and limit wind regime
Under, gather the simulation output load of the load transducer under two kinds of simulation wind regime；
S4：With reference to the wind regime type and the simulation output load of load transducer of analog simulation, activation threshold value is determined；
S5：The measurement parameter of the actual wind regime apparatus for lower wind generating set of collection and the reality output load of the load transducer,
Judge whether the actual wind regime belongs to limit wind regime according to the measurement parameter；If so, comparing the reality output load again
With the size of the activation threshold value, as described reality output load be equal to or more than the activation threshold value, start independent pitch away from
Control shutdown mode is shut down.
2. the method for reducing wind power generating set impeller imbalance ultimate load according to claim 1, it is characterised in that
The model of the wind power generating set include be sequentially connected with Aerodynamics Model, machine driven system model, generator and
Current transformer model, electric network model is also sequentially connected between the Aerodynamics Model and the generator and current transformer model
There are variable blade control system, controller and moment controlling system.
3. the method for reducing wind power generating set impeller imbalance ultimate load according to claim 1 and 2, its feature exists
In the measurement parameter includes propeller pitch angle, power and generator speed.
4. the method for reducing wind power generating set impeller imbalance ultimate load according to claim 1 and 2, its feature exists
Be four in, the load transducer, be separately mounted to blade root suction side, on the pressure side, leading edge and trailing edge, wherein installed in suction
What power side and load transducer on the pressure side were exported is blade root vertical load, and the load transducer installed in leading edge and trailing edge is exported
Be blade root horizontal load.
5. the method for reducing wind power generating set impeller imbalance ultimate load according to claim 4, it is characterised in that
It is that the activation threshold value is determined by the blade root vertical load in the step S4.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710050518.XA CN106762415B (en) | 2017-01-23 | 2017-01-23 | A method of reducing wind power generating set impeller imbalance ultimate load |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710050518.XA CN106762415B (en) | 2017-01-23 | 2017-01-23 | A method of reducing wind power generating set impeller imbalance ultimate load |
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| Publication Number | Publication Date |
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| CN106762415A true CN106762415A (en) | 2017-05-31 |
| CN106762415B CN106762415B (en) | 2018-12-21 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259637A (en) * | 2019-06-25 | 2019-09-20 | 中国船舶重工集团海装风电股份有限公司 | Blade aerodynamic imbalance antidote, device and the equipment of wind power generating set |
| CN111734585A (en) * | 2020-06-18 | 2020-10-02 | 上海电气风电集团股份有限公司 | Method and device for determining limit load of wind driven generator and readable storage medium |
| CN112031998A (en) * | 2020-09-21 | 2020-12-04 | 山东中车风电有限公司 | Wind turbine generator independent variable pitch control optimization method and system based on laser radar |
| CN113007013A (en) * | 2019-12-20 | 2021-06-22 | 新疆金风科技股份有限公司 | Torsion load control method, device and system and wind generating set |
| CN113653596A (en) * | 2021-09-23 | 2021-11-16 | 华北电力大学 | Variable pitch control method of double-wind-wheel wind turbine based on fuzzy prediction and sector management |
| CN113669201A (en) * | 2021-09-15 | 2021-11-19 | 中国华能集团清洁能源技术研究院有限公司 | Limit load control method for wind turbine generator under extreme conditions |
| WO2024002381A1 (en) * | 2022-06-27 | 2024-01-04 | 上海拜安传感技术有限公司 | Individual pitch adjustment method and adjustment system for wind driven generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113007013A (en) * | 2019-12-20 | 2021-06-22 | 新疆金风科技股份有限公司 | Torsion load control method, device and system and wind generating set |
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| CN113669201A (en) * | 2021-09-15 | 2021-11-19 | 中国华能集团清洁能源技术研究院有限公司 | Limit load control method for wind turbine generator under extreme conditions |
| CN113653596A (en) * | 2021-09-23 | 2021-11-16 | 华北电力大学 | Variable pitch control method of double-wind-wheel wind turbine based on fuzzy prediction and sector management |
| CN113653596B (en) * | 2021-09-23 | 2023-07-14 | 华北电力大学 | Double-wind-wheel wind turbine pitch control method based on fuzzy prediction and sector management |
| WO2024002381A1 (en) * | 2022-06-27 | 2024-01-04 | 上海拜安传感技术有限公司 | Individual pitch adjustment method and adjustment system for wind driven generator |
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| Publication number | Publication date |
|---|---|
| CN106762415B (en) | 2018-12-21 |
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