CN107131100A - A kind of speed-changing oar-changing Wind turbines fitful wind control method - Google Patents
A kind of speed-changing oar-changing Wind turbines fitful wind control method Download PDFInfo
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- CN107131100A CN107131100A CN201710467601.7A CN201710467601A CN107131100A CN 107131100 A CN107131100 A CN 107131100A CN 201710467601 A CN201710467601 A CN 201710467601A CN 107131100 A CN107131100 A CN 107131100A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000001133 acceleration Effects 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method 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
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
-
- 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
-
- 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
- F03D7/0276—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling rotor speed, e.g. variable speed
-
- 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
- F03D7/028—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power
-
- 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
- F05B2270/10—Purpose of the control system
- F05B2270/102—Purpose of the control system to control acceleration (u)
-
- 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
- F05B2270/10—Purpose of the control system
- F05B2270/103—Purpose of the control system to affect the output of the engine
- F05B2270/1032—Torque
-
- 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
- F05B2270/322—Control parameters, e.g. input parameters the detection or prediction of a wind gust
-
- 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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
Abstract
A kind of speed-changing oar-changing Wind turbines fitful wind control method, comprises the following steps：A) whether the rotational speed omega of detection Wind turbines is more than the rated speed ω of Wind turbinesrate；Whether the acceleration Δ ω/Δ t for B) calculating Wind turbines is more than acceleration given threshold；C) if Wind turbines meet two conditions of A and B simultaneously, become propeller angle and be directly given as 90 degree, opened loop control is carried out, while pitch rate increases to setting threshold values；D) when oar opened loop control is become, direct torque output remains former torque value；E) after feathering setting time T, if Wind turbines are unsatisfactory for A and B condition, pitch control is switched to conventional closed loop control, if Wind turbines still meet condition A and B simultaneously, pitch-controlled system continues feathering.The present invention provides the speed-changing oar-changing Wind turbines fitful wind control method that a kind of stability is preferable, security is higher.
Description
Technical field
The present invention relates to technical field of wind power generation, more particularly to a kind of speed-changing oar-changing Wind turbines fitful wind control method.
Background technology
With the exploitation of low wind speed, ultralow wind speed Wind turbines, unit rotor diameter constantly increases.It is huge due to wind wheel
Inertia, generally after fitful wind occurs 1~2 second, wind speed round just changes, and delay system easily causes driving.Unit occurs
Another factor of wind wheel hypervelocity is, due to the nonlinear feature of blade aerodynamic, the control of Single Controller or single gain
Device processed can not meet control performance requirement, it is common practice that the pitch control adjusted according to propeller pitch angle or wind speed come designing gain
Parameter, propeller pitch angle or wind speed are bigger, and gain is smaller, although the regulating time for so avoiding propeller pitch angle is long, in fitful wind work
Under condition, when wind speed steeply rises, propeller pitch angle action is slower, and wind wheel inertia is larger, and wind wheel easily exceeds the speed limit.
Existing document is studied suppressing wind wheel hypervelocity, transmission chain model and wake model is simplified, based on static state
Power-wind speed relation, estimate out wind wheel effective wind speed, as the feed-forward signal of controller, carry out becoming oar action in advance.But not yet
There is the dynamic characteristic for considering yaw error, wind wheel and pylon；Moment of flexure with edgewise direction is waved based on measurement propeller shank, passed through
Nonlinear observer, estimates out effective wind speed and inflow angle, and recognizes limit event pattern on this basis, quickly to be become
Oar, effectively reduces wind speed round.But it is common in propeller shank patch foil gauge in the Wind turbines run at present.Base
In the radar sonde in cabin, the feed-forward signal introduced after the wind speed before wind wheel, processing as controller is detected,
The load of unit is significantly reduced, while wind wheel hypervelocity problem is also effectively inhibited, but radar sonde is at present also in examination
Test the stage, cost is higher, be not suitable for engineering batch application.
The content of the invention
In order to overcome less stable, the security of existing speed-changing oar-changing Wind turbines fitful wind control method relatively low not
Foot, the present invention provides the speed-changing oar-changing Wind turbines fitful wind control method that a kind of stability is preferable, security is higher.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of speed-changing oar-changing Wind turbines fitful wind control method, the control method comprises the following steps：
A) whether the rotational speed omega of detection Wind turbines is more than the rated speed ω of Wind turbinesrate；
Whether the acceleration Δ ω/Δ t for B) calculating Wind turbines is more than acceleration given threshold；
C) if Wind turbines meet two conditions of A and B simultaneously, become propeller angle and be directly given as 90 degree, carry out open loop
Control, while pitch rate increases to setting threshold values；
D) when oar opened loop control is become, direct torque output remains former torque value；
E) after feathering setting time T, if Wind turbines are unsatisfactory for A and B condition, pitch control is switched to
Conventional closed loop is controlled, if Wind turbines still meet condition A and B simultaneously, pitch-controlled system continues feathering.
Further, the step B) in, the acceleration given threshold is speed limit threshold values.
Further, the step E) in, the span of the setting time T was from 0 second to 20 seconds.
The present invention technical concept be：Judge whether Wind turbines are in battle array according to the rotating speed and acceleration magnitude of Wind turbines
Under wind, by the way that directly to the propeller pitch angle that sets the goal, for 90 degree, change oar speed of putting away the oars increases to maximum, so that blower fan is avoided in battle array
Exceeded the speed limit under landscape condition, and reduce load, improve the stability and security of running of wind generating set.Core concept is to become in advance
Oar becomes oar with quick, as long as rotating speed is more than rated speed, acceleration exceedes upper limit threshold values, the power without removing calculating Wind turbines
Whether rated power is arrived, with regard to carrying out becoming oar action in advance.
The present invention is in line with fitful wind operating mode, and its basis for estimation is that the rotating speed of Wind turbines is more than rated speed, while wind
The acceleration of group of motors exceedes higher limit, will now become oar propeller pitch angle desired value and directly set 90 degree, while speed increase of putting away the oars
To setting threshold values, direct torque output remains former torque value.Wind turbines were judging whether Wind turbines are also located after T seconds
In gustiness, by judging whether the rotating speed and acceleration of Wind turbines meet simultaneously, if it is not, then Wind turbines switch
To conventional closed loop mode of operation, if Wind turbines are also under fitful wind, pitch-controlled system continues feathering.If Wind turbines exist
There is no full hair before fitful wind, make change oar advancement before rated power；So as to effectively suppress to rotate in fitful wind operating mode leeward
Fast overshoot, is reduced due to shutting down the generated energy brought loss, and do not increase unit fatigue load.
Beneficial effects of the present invention are mainly manifested in：Effectively suppress the wind speed round overshoot under fitful wind operating mode, reduce due to
The generated energy loss brought is shut down, and does not increase unit fatigue load；Stability is preferable, security is higher.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the Wind turbines fitful wind control method of the embodiment of the present invention.
Fig. 2 is embodiments of the invention Wind turbines fitful wind figure.
Fig. 3 is embodiments of the invention Wind turbines vane angle comparison diagram.
Fig. 4 is embodiments of the invention Wind turbines generator speed comparison diagram.
Fig. 5 is embodiments of the invention Wind turbines power contrast figure.
Fig. 6 is reasoning comparison diagram before and after embodiments of the invention tower frame for wind generating set.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
A kind of 1~Fig. 6 of reference picture, speed-changing oar-changing Wind turbines fitful wind control method, the control method includes following step
Suddenly：
A) whether the rotational speed omega of detection Wind turbines is more than the rated speed ω of Wind turbinesrate；
Whether the acceleration Δ ω/Δ t for B) calculating Wind turbines is more than acceleration given threshold；
C) if Wind turbines meet two conditions of A and B simultaneously, become propeller angle and be directly given as 90 degree, carry out open loop
Control, while pitch rate increases to setting threshold values；
D) when oar opened loop control is become, direct torque output remains former torque value；
E) after feathering setting time T, if Wind turbines are unsatisfactory for A and B condition, pitch control is switched to
Conventional closed loop is controlled, if Wind turbines still meet condition A and B simultaneously, pitch-controlled system continues feathering.
Further, the step B) in, the acceleration given threshold is speed limit threshold values.
Further, the step E) in, the span of the setting time T was from 0 second to 20 seconds.
Fig. 1 is the schematic flow sheet of speed-changing oar-changing Wind turbines fitful wind control method of the present invention.Can selection wind turbine
Performed in group, table 1 is embodiments of the invention Wind turbines parameter：
Table 1
The step of speed-changing oar-changing Wind turbines fitful wind control method, is as follows：
Step 1：Detect the actual value of the rotational speed omega of Wind turbines.
Step 2：Obtain the rated speed ω of Wind turbinesrateSetting value.
Step 3：Compare actual speed ω>ωrateWhether set up, if set up, enter next step.
Step 4：Calculate acceleration alpha=Δ ω/Δ t of Wind turbines>αmaxWhether set up, if set up, carry out next
Step.
Step 5：The desired value of propeller pitch angle of pitch-controlled system is set as 90 degree, while pitch rate is set as into maximum.
Step 6：Direct torque output remains former torque value.
Step 7:Carry out step 3 after T seconds to operate, if step 3 is invalid, pitch control device control mode switch is to often
Advise closed loop control mode.Propeller pitch angle is given according to PI algorithms and original pitch rate is set.If step 3 condition is set up,
Carry out next step.
Step 8：Whether the condition of judgment step 4 is set up.If step 4 is invalid, pitch control device control model is cut
Change to conventional closed loop control model.Propeller pitch angle is given according to PI algorithms and original pitch rate is set.If step 4 condition into
It is vertical, then continue executing with step 5.
The present embodiment will be helpful to those skilled in the art and further understand the present invention, but not limit this in any form
Invention.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, may be used also
To make several modifications and improvements.These belong to protection scope of the present invention.
Claims (3)
1. a kind of speed-changing oar-changing Wind turbines fitful wind control method, it is characterised in that：The control method comprises the following steps：
A) whether the rotational speed omega of detection Wind turbines is more than the rated speed ω of Wind turbinesrate；
Whether the acceleration Δ ω/Δ t for B) calculating Wind turbines is more than acceleration given threshold；
C) if Wind turbines meet two conditions of A and B simultaneously, become propeller angle and be directly given as 90 degree, carry out opened loop control,
Pitch rate increases to setting threshold values simultaneously；
D) when oar opened loop control is become, direct torque output remains former torque value；
E) after feathering setting time T, if Wind turbines are unsatisfactory for A and B condition, pitch control is switched to routine
Closed-loop control, if Wind turbines still meet condition A and B simultaneously, pitch-controlled system continues feathering.
2. a kind of speed-changing oar-changing Wind turbines fitful wind control method as claimed in claim 1, it is characterised in that：The step B)
In, the acceleration given threshold is speed limit threshold values.
3. a kind of speed-changing oar-changing Wind turbines fitful wind control method as claimed in claim 1 or 2, it is characterised in that：The step
Rapid E) in, the span of the setting time T was from 0 second to 20 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467601.7A CN107131100A (en) | 2017-06-20 | 2017-06-20 | A kind of speed-changing oar-changing Wind turbines fitful wind control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467601.7A CN107131100A (en) | 2017-06-20 | 2017-06-20 | A kind of speed-changing oar-changing Wind turbines fitful wind control method |
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| Publication Number | Publication Date |
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| CN107131100A true CN107131100A (en) | 2017-09-05 |
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ID=59736257
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| CN201710467601.7A Pending CN107131100A (en) | 2017-06-20 | 2017-06-20 | A kind of speed-changing oar-changing Wind turbines fitful wind control method |
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| CN (1) | CN107131100A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605661A (en) * | 2017-11-06 | 2018-01-19 | 国电联合动力技术有限公司 | A kind of Wind turbines for reducing load shut down feathering method |
| CN108825449A (en) * | 2018-06-26 | 2018-11-16 | 新疆金风科技股份有限公司 | Wind power generating set driving method for early warning and device |
| CN109026524A (en) * | 2018-09-06 | 2018-12-18 | 明阳智慧能源集团股份公司 | A kind of variable Rate feathering halt control method of wind power generating set |
| CN109751187A (en) * | 2018-12-21 | 2019-05-14 | 明阳智慧能源集团股份公司 | A kind of variable Rate feathering closing method of the wind power generating set based on second cabin acceleration |
| CN110185579A (en) * | 2019-06-12 | 2019-08-30 | 三一重能有限公司 | A kind of speed change feathering closing method, device and Wind turbines |
| CN110374806A (en) * | 2019-09-02 | 2019-10-25 | 中国船舶重工集团海装风电股份有限公司 | Wind power generating set load shedding control method and wind power generating set |
| CN110594098A (en) * | 2019-09-12 | 2019-12-20 | 华电电力科学研究院有限公司 | Over-speed control method for impeller of wind turbine generator |
| CN114198252A (en) * | 2021-11-16 | 2022-03-18 | 重庆海装风电工程技术有限公司 | Control method and device for inhibiting overspeed of rotor of wind generating set |
| CN118008695A (en) * | 2024-04-08 | 2024-05-10 | 昆明理工大学 | Advanced fuzzy pitch control method for participating in power grid frequency modulation of mountain wind turbine generator system in plateau |
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| CN102374124A (en) * | 2010-08-16 | 2012-03-14 | 通用电气公司 | Apparatus and method for operation of a wind turbine |
| EP2963284A1 (en) * | 2014-06-30 | 2016-01-06 | General Electric Company | Methods and systems to operate a wind turbine system |
| CN106121914A (en) * | 2016-08-26 | 2016-11-16 | 三重型能源装备有限公司 | The closing method of blower fan and system under extremity |
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2017
- 2017-06-20 CN CN201710467601.7A patent/CN107131100A/en active Pending
Patent Citations (3)
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| CN102374124A (en) * | 2010-08-16 | 2012-03-14 | 通用电气公司 | Apparatus and method for operation of a wind turbine |
| EP2963284A1 (en) * | 2014-06-30 | 2016-01-06 | General Electric Company | Methods and systems to operate a wind turbine system |
| CN106121914A (en) * | 2016-08-26 | 2016-11-16 | 三重型能源装备有限公司 | The closing method of blower fan and system under extremity |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605661A (en) * | 2017-11-06 | 2018-01-19 | 国电联合动力技术有限公司 | A kind of Wind turbines for reducing load shut down feathering method |
| CN107605661B (en) * | 2017-11-06 | 2019-06-25 | 国电联合动力技术有限公司 | A kind of Wind turbines shutdown feathering method reducing load |
| CN108825449A (en) * | 2018-06-26 | 2018-11-16 | 新疆金风科技股份有限公司 | Wind power generating set driving method for early warning and device |
| CN109026524A (en) * | 2018-09-06 | 2018-12-18 | 明阳智慧能源集团股份公司 | A kind of variable Rate feathering halt control method of wind power generating set |
| CN109026524B (en) * | 2018-09-06 | 2019-08-30 | 明阳智慧能源集团股份公司 | A kind of variable Rate feathering halt control method of wind power generating set |
| CN109751187A (en) * | 2018-12-21 | 2019-05-14 | 明阳智慧能源集团股份公司 | A kind of variable Rate feathering closing method of the wind power generating set based on second cabin acceleration |
| CN110185579A (en) * | 2019-06-12 | 2019-08-30 | 三一重能有限公司 | A kind of speed change feathering closing method, device and Wind turbines |
| CN110374806A (en) * | 2019-09-02 | 2019-10-25 | 中国船舶重工集团海装风电股份有限公司 | Wind power generating set load shedding control method and wind power generating set |
| CN110594098A (en) * | 2019-09-12 | 2019-12-20 | 华电电力科学研究院有限公司 | Over-speed control method for impeller of wind turbine generator |
| CN114198252A (en) * | 2021-11-16 | 2022-03-18 | 重庆海装风电工程技术有限公司 | Control method and device for inhibiting overspeed of rotor of wind generating set |
| CN118008695A (en) * | 2024-04-08 | 2024-05-10 | 昆明理工大学 | Advanced fuzzy pitch control method for participating in power grid frequency modulation of mountain wind turbine generator system in plateau |
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Application publication date: 20170905 |