CN113153637A - Flexible expansion control method and system for cut-out wind speed of megawatt wind turbine generator - Google Patents
Flexible expansion control method and system for cut-out wind speed of megawatt wind turbine generator Download PDFInfo
- Publication number
- CN113153637A CN113153637A CN202110464647.XA CN202110464647A CN113153637A CN 113153637 A CN113153637 A CN 113153637A CN 202110464647 A CN202110464647 A CN 202110464647A CN 113153637 A CN113153637 A CN 113153637A
- Authority
- CN
- China
- Prior art keywords
- wind speed
- cut
- flexible expansion
- wind turbine
- turbine generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000011159 matrix material Substances 0.000 claims abstract description 43
- 238000010248 power generation Methods 0.000 claims abstract description 4
- 238000001228 spectrum Methods 0.000 claims description 6
- 238000009825 accumulation Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- F03D7/028—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
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/32—Wind speeds
-
- 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 method and the system for controlling the flexible expansion of the cut-out wind speed of the megawatt wind turbine generator set are characterized by comprising the following steps of: the first step is as follows: obtaining a preset load matrix consisting of multiple load elements in an application site of the wind turbine generator; the second step is that: comparing and analyzing the real-time load of the wind turbine generator with a preset load matrix to judge whether cut-out wind speed flexible expansion control is carried out or not, if so, carrying out the next step, otherwise, carrying out normal cut-out wind speed control; the third step: the soft expansion control of cut-out wind speed is carried out by adjusting the power characteristics of the wind turbine; the fourth step: and when the cut-out wind speed flexible expansion control is operated to set time or one load element in the application site of the wind power generation unit exceeds the range of the preset load matrix, ending the wind speed flexible expansion control and entering normal cut-out wind speed control. The invention fully excavates the performance potential of the unit, increases the energy capture of a high wind speed section, reduces the cutting-out and re-cutting-in processes, reduces the whole batch trawling of a wind field, and has strong power grid friendliness.
Description
Technical Field
The invention relates to a soft expansion control method and system for cut-out wind speed of a megawatt wind turbine generator, and belongs to the technical field of cut-out wind speed control of megawatt wind turbine generators.
Background
In the existing megawatt wind turbine generator set, when a wind speed measuring sensor detects that the measured wind speed instantaneous value or the average value is larger than the corresponding design threshold value of the wind turbine generator set, the wind turbine generator set is directly stopped and disconnected, and the main purpose is to adjust the capture of the starting performance of the wind turbine set through stopping feathering, reduce the pneumatic load borne by the wind turbine and ensure the safety of the wind turbine set, namely the so-called cut-out shutdown. The advantages of this hard "cut-out shutdown" control are: the logic is simple, the engineering is easy to realize, and the safety of the unit is ensured. Its disadvantages are also quite evident: collective off-line, poor power grid friendliness, unit design allowance waste and loss of wind energy capturing capacity of strong wind. Particularly, with the coming of the "fair era", the exploitation of the unit performance potential of the technical level is particularly important for the development of wind power projects. In order to improve the wind energy capturing capability of the wind turbine generator set in the strong wind and ensure the power grid friendliness under the strong wind working condition, the cut-off wind speed of the wind turbine generator set needs to be expanded.
When most complete machine manufacturers design wind turbines, the selection of design conditions follows relevant design standards, and wind power plants select the types of the wind turbines according to wind resource conditions and set corresponding environment adaptation intervals. The method can lead the unit to be immediately shut down when the unit exceeds the environment adaptation interval, is not friendly to the power grid and also loses the capturing capability of 'strong wind'. The invention aims to ensure that the wind turbine generator is not off-grid during the strong wind period, simultaneously consider load safety and improve the wind energy capturing capability of the strong wind.
Disclosure of Invention
According to the flexible expansion control method and system for the cut-out wind speed of the megawatt wind turbine generator set, the wind turbine generator set is controlled in the wind speed operation interval above the conventional cut-out wind speed, the safety of the wind turbine generator set is effectively guaranteed, the maximization of wind energy capture is guaranteed, the potential of the generator set performance is fully excavated, the energy capture of a high wind speed section is increased, the cut-out and cut-in processes are reduced, the whole batch trawling of a wind field is reduced, and the power grid friendliness is high.
In order to achieve the purpose, the invention adopts the technical scheme that:
the soft expansion control method for the cut-out wind speed of the megawatt wind turbine generator set is characterized by comprising the following steps of:
the first step is as follows: obtaining a preset load matrix consisting of multiple load elements in an application site of the wind turbine generator;
the second step is that: comparing and analyzing the real-time load of the wind turbine generator with a preset load matrix to judge whether cut-out wind speed flexible expansion control is carried out or not, if so, carrying out the next step, otherwise, carrying out normal cut-out wind speed control;
the third step: the soft expansion control of cut-out wind speed is carried out by adjusting the power characteristics of the wind turbine;
the fourth step: and when the cut-out wind speed flexible expansion control is operated to set time or one load element in the application site of the wind power generation unit exceeds the range of the preset load matrix, ending the wind speed flexible expansion control and entering normal cut-out wind speed control.
Preferably, the "multiple load elements" in the first step means: the wind turbine uses site air density, turbulence, wind shear, annual average wind speed, and wind turbine model spectra.
Preferably, the first step specifically means: and carrying out accumulation combination calculation by using the site air density, turbulence, wind shear, annual average wind speed and a wind turbine model spectrum of the wind turbine to obtain a preset load matrix of the multiple load elements.
Preferably, the second step specifically means: and if the real-time load of the wind turbine generator is within the range of the preset load matrix and at least one load element has a load allowance, carrying out cut-out wind speed flexible expansion control, and otherwise, carrying out normal cut-out wind speed control.
Preferably, the "adjusting the power characteristic of the wind turbine" means that the power characteristic of the wind turbine is adjusted according to the measured pitch angle or wind speed of the wind turbine above the normal cut-out wind speed.
Preferably, the "adjusting the power characteristic of the wind turbine according to the measured pitch angle or wind speed of the wind turbine" means: and temporarily changing and adjusting power, oblique line adjusting power or interpolation adjusting power according to the pitch angle or wind speed of the wind turbine generator.
Preferably, the condition for ending the wind speed flexible expansion control is that the cut-out wind speed flexible expansion continuous operation time is greater than a threshold value, the cut-out wind speed flexible expansion maximum wind speed is greater than a threshold value, the cut-out wind speed flexible expansion average wind speed is greater than a threshold value, the cut-out wind speed flexible expansion maximum turbulence is greater than a threshold value, and/or the cut-out wind speed flexible expansion average turbulence is greater than a threshold value, wherein the threshold value is a maximum value corresponding to a corresponding load element in a preset load matrix.
The megawatt wind turbine generator cut-out wind speed flexible expansion control system adopting the megawatt wind turbine generator cut-out wind speed flexible expansion control method is connected with a control system of a wind turbine generator, and is characterized in that: the system comprises a cut-out wind speed flexible expansion control judgment module, a cut-out wind speed flexible expansion control module connected with the cut-out wind speed flexible expansion control judgment module and a cut-out wind speed flexible expansion exit judgment module connected with the cut-out wind speed flexible expansion control module; the cut-out wind speed flexible expansion control judging module firstly obtains a preset load matrix consisting of multiple load elements in an application site of the wind turbine generator, then compares and analyzes the real-time load of the wind turbine generator and the preset load matrix to judge whether cut-out wind speed flexible expansion control is carried out, if so, cut-out wind speed flexible expansion control is carried out, otherwise, a control system of the wind turbine generator carries out normal cut-out wind speed control; the cut-out wind speed flexible expansion control module performs cut-out wind speed flexible expansion control by adjusting the power characteristics of the wind turbine generator set; when the cut-out wind speed flexible expansion control is operated to set time or one load element in the application site of the wind turbine generator exceeds the range of the preset load matrix, the cut-out wind speed flexible expansion exit judging module is used for finishing the wind speed flexible expansion control, and the control system of the wind turbine generator performs normal cut-out wind speed control.
The invention has the beneficial effects that:
1. according to the method, a preset load matrix composed of multiple load elements in an application site of the wind turbine generator is obtained, then the real-time load of the wind turbine generator is compared with the preset load matrix, analysis is carried out to judge whether cut-out wind speed flexible expansion control is carried out, if yes, cut-out wind speed flexible expansion control is carried out, and cut-out wind speed flexible expansion control is carried out by adjusting the power characteristics of the wind turbine generator; otherwise, controlling the normal cut-out wind speed; when the cut-out wind speed flexible expansion control is operated to a set time or one load element in an application site of the wind turbine generator exceeds a preset load matrix range, ending the wind speed flexible expansion control to enter normal cut-out wind speed control, realizing the control of the wind turbine generator in a wind speed operation interval above a 'normal cut-out' wind speed, wherein a control object is the power characteristic of the wind turbine generator, and exiting the cut-out wind speed flexible expansion control to enter normal cut-out control after the cut-out wind speed flexible expansion control is operated for a period of time or when external conditions exceed a safety expansion design boundary, thereby effectively ensuring the safety of the incoming wind turbine generator.
2. According to the method, the preset load matrix consisting of multiple load elements in the wind turbine application site is compared with the real-time load of the wind turbine to judge whether cut-out wind speed flexible expansion control is performed or not, so that the safety and accuracy of cut-out wind speed flexible expansion control are guaranteed, the false operation rate is reduced, the cut-out wind speed flexible expansion is combined with the real-time load element change to adjust the power characteristic of the wind turbine, the maximization of wind energy capture is guaranteed, the performance potential of the turbine is fully excavated, the energy capture of a high wind speed section is increased, the cut-out and re-cut-in processes are reduced, the whole batch trawling of a wind farm is reduced, and the power grid friendliness is high.
3. The cut-out wind speed flexible expansion quits from multiple factors such as wind speed (maximum value, average value), turbulence intensity (maximum value, average value), running time and the like, the safety of the coming unit is effectively guaranteed, and the safety of the coming unit is effectively guaranteed.
Drawings
Fig. 1 is an expansion control flow chart of a megawatt wind turbine generator system cut-out wind speed flexible expansion control system.
Detailed Description
An embodiment of the present invention will be described in detail with reference to fig. 1.
The soft expansion control method for the cut-out wind speed of the megawatt wind turbine generator set is characterized by comprising the following steps of:
the first step is as follows: obtaining a preset load matrix consisting of multiple load elements in an application site of the wind turbine generator;
the second step is that: comparing and analyzing the real-time load of the wind turbine generator with a preset load matrix to judge whether cut-out wind speed flexible expansion control is carried out or not, if so, carrying out the next step, otherwise, carrying out normal cut-out wind speed control;
the third step: the soft expansion control of cut-out wind speed is carried out by adjusting the power characteristics of the wind turbine;
the fourth step: and when the cut-out wind speed flexible expansion control is operated to set time or one load element in the application site of the wind power generation unit exceeds the range of the preset load matrix, ending the wind speed flexible expansion control and entering normal cut-out wind speed control.
According to the megawatt wind turbine generator set cut-out wind speed flexible expansion control method, a preset load matrix consisting of multiple load elements in an application site of the wind turbine generator set is obtained, then real-time load of the wind turbine generator set is compared with the preset load matrix, analysis is carried out to judge whether cut-out wind speed flexible expansion control is carried out, if yes, cut-out wind speed flexible expansion control is carried out, and cut-out wind speed flexible expansion control is carried out by adjusting the power characteristics of the wind turbine generator set; otherwise, controlling the normal cut-out wind speed; when the cut-out wind speed flexible expansion control is operated to a set time or one load element in an application site of the wind turbine generator exceeds a preset load matrix range, ending the wind speed flexible expansion control to enter normal cut-out wind speed control, realizing the control of the wind turbine generator in a wind speed operation interval above a 'normal cut-out' wind speed, wherein a control object is the power characteristic of the wind turbine generator, and exiting the cut-out wind speed flexible expansion control to enter normal cut-out control after the cut-out wind speed flexible expansion control is operated for a period of time or when external conditions exceed a safety expansion design boundary, thereby effectively ensuring the safety of the incoming wind turbine generator.
Wherein, the 'multiple load elements' in the first step means: the wind turbine uses site air density, turbulence, wind shear, annual average wind speed, and wind turbine model spectra. The load elements comprise wind speed, air density, turbulence intensity, wind shear and model number; and when the load element has a load margin, the cut-out wind speed flexible expansion control can be carried out, otherwise, the cut-out shutdown is carried out according to the normal cut-out control.
Wherein, the first step specifically means: and carrying out accumulation combination calculation by using the site air density, turbulence, wind shear, annual average wind speed and a wind turbine model spectrum of the wind turbine to obtain a preset load matrix of the multiple load elements. The preset load matrix forms a load range, real-time load of the running of the wind turbine generator is in the preset load matrix, and load elements have allowance, so that cut-out wind speed flexible expansion control can be performed. A preset load matrix composed of multiple load elements in an application site of the wind turbine generator is compared with the real-time load of the wind turbine generator for analysis so as to judge whether cut-out wind speed flexible expansion control is carried out or not, safety and accuracy of cut-out wind speed flexible expansion control are guaranteed, and false operation rate is reduced.
Wherein, the second step specifically means: and if the real-time load of the wind turbine generator is within the range of the preset load matrix and at least one load element has a load allowance, carrying out cut-out wind speed flexible expansion control, and otherwise, carrying out normal cut-out wind speed control. When the load element has a load allowance during normal operation of the wind turbine generator, cut-out wind speed flexible expansion control can be performed on the wind turbine generator, cut-out wind speed flexible expansion is combined with real-time load element change to adjust the power characteristic of the wind turbine generator, maximization of wind energy capture is guaranteed, the performance potential of the wind turbine generator is fully excavated, energy capture of a high wind speed section is increased, cut-out and re-cut-in processes are reduced, whole batch trawling of a wind field is reduced, and power grid friendliness is high.
The term "adjusting the power characteristics of the wind turbine" refers to adjusting the power characteristics of the wind turbine according to the measured pitch angle or wind speed of the wind turbine above the normal cut-out wind speed. The power characteristic adjustment is easy to realize, and diversified adjustment can be realized according to the measured pitch angle or the wind speed.
Wherein, the "adjusting the power characteristics of the wind turbine generator according to the measured pitch angle or wind speed of the wind turbine generator" means: and temporarily changing and adjusting power, oblique line adjusting power or interpolation adjusting power according to the pitch angle or wind speed of the wind turbine generator. The operation interval of the wind turbine generator above the conventional cut-out wind speed is obtained through various power adjustment modes, the energy capture of the high wind speed section of the wind turbine generator can be increased, the cut-out and cut-in processes are reduced, and the power grid friendliness is guaranteed.
The condition for finishing the wind speed flexible expansion control is that the cut-out wind speed flexible expansion continuous operation time is greater than a threshold value, the cut-out wind speed flexible expansion maximum wind speed is greater than a threshold value, the cut-out wind speed flexible expansion average wind speed is greater than a threshold value, the cut-out wind speed flexible expansion maximum turbulence is greater than a threshold value and/or the cut-out wind speed flexible expansion average turbulence is greater than a threshold value, wherein the threshold value refers to the maximum value corresponding to the corresponding load element in the preset load matrix. The cut-out wind speed flexible expansion quits from multiple factors such as wind speed (maximum value and average value), turbulence intensity (maximum value and average value), running time and the like, and the safety of the wind turbine generator set is effectively guaranteed.
The megawatt wind turbine generator cut-out wind speed flexible expansion control system adopting the megawatt wind turbine generator cut-out wind speed flexible expansion control method is connected with a control system of a wind turbine generator, and is characterized in that: the system comprises a cut-out wind speed flexible expansion control judgment module, a cut-out wind speed flexible expansion control module connected with the cut-out wind speed flexible expansion control judgment module and a cut-out wind speed flexible expansion exit judgment module connected with the cut-out wind speed flexible expansion control module; the cut-out wind speed flexible expansion control judging module firstly obtains a preset load matrix consisting of multiple load elements in an application site of the wind turbine generator, then compares and analyzes the real-time load of the wind turbine generator and the preset load matrix to judge whether cut-out wind speed flexible expansion control is carried out, if so, cut-out wind speed flexible expansion control is carried out, otherwise, a control system of the wind turbine generator carries out normal cut-out wind speed control; the cut-out wind speed flexible expansion control module performs cut-out wind speed flexible expansion control by adjusting the power characteristics of the wind turbine generator set; when the cut-out wind speed flexible expansion control is operated to set time or one load element in the application site of the wind turbine generator exceeds the range of the preset load matrix, the cut-out wind speed flexible expansion exit judging module is used for finishing the wind speed flexible expansion control, and the control system of the wind turbine generator performs normal cut-out wind speed control.
In the megawatt wind turbine generator cut-out wind speed flexible expansion control system, a preset load matrix consisting of multiple load elements in an application site of the wind turbine generator is obtained first, then the real-time load of the wind turbine generator is compared with the preset load matrix to analyze and judge whether cut-out wind speed flexible expansion control is carried out or not, if so, cut-out wind speed flexible expansion control is carried out, and the cut-out wind speed flexible expansion control is carried out by adjusting the power characteristic of the wind turbine generator; otherwise, controlling the normal cut-out wind speed; when the cut-out wind speed flexible expansion control is operated to a set time or one load element in an application site of the wind turbine generator exceeds a preset load matrix range, ending the wind speed flexible expansion control to enter normal cut-out wind speed control, realizing the control of the wind turbine generator in a wind speed operation interval above a 'normal cut-out' wind speed, wherein a control object is the power characteristic of the wind turbine generator, and exiting the cut-out wind speed flexible expansion control to enter normal cut-out control after the cut-out wind speed flexible expansion control is operated for a period of time or when external conditions exceed a safety expansion design boundary, thereby effectively ensuring the safety of the incoming wind turbine generator. The maximization of wind energy capture is guaranteed, the potential of the unit performance is fully excavated, the energy capture of a high wind speed section is increased, the cutting-out and re-cutting-in processes are reduced, the whole batch trawling of a wind field is reduced, and the power grid friendliness is high.
The technical solutions of the embodiments of the present invention are fully described above with reference to the accompanying drawings, and it should be noted that the described embodiments are only some embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Claims (8)
1. The soft expansion control method for the cut-out wind speed of the megawatt wind turbine generator set is characterized by comprising the following steps of:
the first step is as follows: obtaining a preset load matrix consisting of multiple load elements in an application site of the wind turbine generator;
the second step is that: comparing and analyzing the real-time load of the wind turbine generator with a preset load matrix to judge whether cut-out wind speed flexible expansion control is carried out or not, if so, carrying out the next step, otherwise, carrying out normal cut-out wind speed control;
the third step: the soft expansion control of cut-out wind speed is carried out by adjusting the power characteristics of the wind turbine;
the fourth step: and when the cut-out wind speed flexible expansion control is operated to set time or one load element in the application site of the wind power generation unit exceeds the range of the preset load matrix, ending the wind speed flexible expansion control and entering normal cut-out wind speed control.
2. The megawatt wind turbine generator system cut-out wind speed flexible expansion control method according to claim 1, characterized in that: the "multiple load elements" in the first step are: the wind turbine uses site air density, turbulence, wind shear, annual average wind speed, and wind turbine model spectra.
3. The megawatt wind turbine generator system cut-out wind speed flexible expansion control method according to claim 2, characterized in that: the first step specifically comprises: and carrying out accumulation combination calculation by using the site air density, turbulence, wind shear, annual average wind speed and a wind turbine model spectrum of the wind turbine to obtain a preset load matrix of the multiple load elements.
4. The megawatt wind turbine generator system cut-out wind speed flexible expansion control method according to claim 1, characterized in that: the second step specifically comprises: and if the real-time load of the wind turbine generator is within the range of the preset load matrix and at least one load element has a load allowance, carrying out cut-out wind speed flexible expansion control, and otherwise, carrying out normal cut-out wind speed control.
5. The megawatt wind turbine generator system cut-out wind speed flexible expansion control method according to claim 1, characterized in that: the term "adjusting the power characteristics of the wind turbine" refers to adjusting the power characteristics of the wind turbine above the normal cut-out wind speed according to the measured pitch angle or wind speed of the wind turbine.
6. The megawatt wind turbine generator system cut-out wind speed flexible expansion control method according to claim 5, characterized in that: "adjusting the power characteristics of the wind turbine according to the measured pitch angle or wind speed of the wind turbine" means: and temporarily changing and adjusting power, oblique line adjusting power or interpolation adjusting power according to the pitch angle or wind speed of the wind turbine generator.
7. The megawatt wind turbine generator system cut-out wind speed flexible expansion control method according to claim 1, characterized in that: the condition for finishing the wind speed flexible expansion control is that the cut-out wind speed flexible expansion continuous operation time is greater than a threshold value, the cut-out wind speed flexible expansion maximum wind speed is greater than a threshold value, the cut-out wind speed flexible expansion average wind speed is greater than a threshold value, the cut-out wind speed flexible expansion maximum turbulence is greater than a threshold value and/or the cut-out wind speed flexible expansion average turbulence is greater than a threshold value, wherein the threshold value refers to the maximum value corresponding to the corresponding load element in the preset load matrix.
8. The megawatt wind turbine generator cut-out wind speed flexible expansion control system adopting the megawatt wind turbine generator cut-out wind speed flexible expansion control method as claimed in any one of claims 1 to 7 is connected with a control system of a wind turbine generator, and is characterized in that: the system comprises a cut-out wind speed flexible expansion control judgment module, a cut-out wind speed flexible expansion control module connected with the cut-out wind speed flexible expansion control judgment module and a cut-out wind speed flexible expansion exit judgment module connected with the cut-out wind speed flexible expansion control module; the cut-out wind speed flexible expansion control judging module firstly obtains a preset load matrix consisting of multiple load elements in an application site of the wind turbine generator, then compares and analyzes the real-time load of the wind turbine generator and the preset load matrix to judge whether cut-out wind speed flexible expansion control is carried out, if so, cut-out wind speed flexible expansion control is carried out, otherwise, a control system of the wind turbine generator carries out normal cut-out wind speed control; the cut-out wind speed flexible expansion control module performs cut-out wind speed flexible expansion control by adjusting the power characteristics of the wind turbine generator set; when the cut-out wind speed flexible expansion control is operated to set time or one load element in the application site of the wind turbine generator exceeds the range of the preset load matrix, the cut-out wind speed flexible expansion exit judging module is used for finishing the wind speed flexible expansion control, and the control system of the wind turbine generator performs normal cut-out wind speed control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110464647.XA CN113153637B (en) | 2021-04-28 | 2021-04-28 | Flexible expansion control method and system for cut-out wind speed of megawatt wind turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110464647.XA CN113153637B (en) | 2021-04-28 | 2021-04-28 | Flexible expansion control method and system for cut-out wind speed of megawatt wind turbine generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113153637A true CN113153637A (en) | 2021-07-23 |
| CN113153637B CN113153637B (en) | 2023-04-07 |
Family
ID=76871677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110464647.XA Active CN113153637B (en) | 2021-04-28 | 2021-04-28 | Flexible expansion control method and system for cut-out wind speed of megawatt wind turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113153637B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832230A (en) * | 2010-05-14 | 2010-09-15 | 广西银河艾万迪斯风力发电有限公司 | Method for controlling wind generating set under strong wind |
| US20140110941A1 (en) * | 2011-05-31 | 2014-04-24 | Vestas Wind Systems A/S | Wind farm and a method of operating a wind farm |
| CN104537200A (en) * | 2014-10-27 | 2015-04-22 | 许继集团有限公司 | Method for prolonging working time of specific wind field fan |
| CN105201739A (en) * | 2015-09-17 | 2015-12-30 | 南车株洲电力机车研究所有限公司 | Load control method for wind generating set |
| CN110094298A (en) * | 2018-01-31 | 2019-08-06 | 北京金风科创风电设备有限公司 | Adaptive adjustment method and device for switching-out strategy |
| CN110566404A (en) * | 2019-08-29 | 2019-12-13 | 陕能榆林清洁能源开发有限公司 | Power curve optimization device and method for wind generating set |
-
2021
- 2021-04-28 CN CN202110464647.XA patent/CN113153637B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832230A (en) * | 2010-05-14 | 2010-09-15 | 广西银河艾万迪斯风力发电有限公司 | Method for controlling wind generating set under strong wind |
| US20140110941A1 (en) * | 2011-05-31 | 2014-04-24 | Vestas Wind Systems A/S | Wind farm and a method of operating a wind farm |
| CN104537200A (en) * | 2014-10-27 | 2015-04-22 | 许继集团有限公司 | Method for prolonging working time of specific wind field fan |
| CN105201739A (en) * | 2015-09-17 | 2015-12-30 | 南车株洲电力机车研究所有限公司 | Load control method for wind generating set |
| CN110094298A (en) * | 2018-01-31 | 2019-08-06 | 北京金风科创风电设备有限公司 | Adaptive adjustment method and device for switching-out strategy |
| CN110566404A (en) * | 2019-08-29 | 2019-12-13 | 陕能榆林清洁能源开发有限公司 | Power curve optimization device and method for wind generating set |
Non-Patent Citations (2)
| Title |
|---|
| 刘晓辉等: "提高切出风速限功率运行对MW级风机的影响研究", 《机电工程》 * |
| 史波等: "华电小草湖风电场二期GW66-1500风机切出风速优化", 《发电与空调》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113153637B (en) | 2023-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8380357B2 (en) | Wind turbine control | |
| CN105257471B (en) | Wind power generating set award setting method, apparatus and system | |
| CN103606966B (en) | The control method that wind-driven generator active power, reactive power are distributed | |
| CN105201739B (en) | A kind of load controlled method of Wind turbines | |
| CN110886679A (en) | Method for actively controlling blade clearance of wind generating set | |
| CN109441722B (en) | Control system and method suitable for starting and stopping wind turbine generator at low wind speed section | |
| CN101964532A (en) | Method for controlling low-voltage ride through of doubly-fed type wind generating set | |
| CN103488236B (en) | Optimal scheduling method of hybrid wind-hydro-solar supplementary power generation system | |
| WO2023040141A1 (en) | Wind turbine overspeed-protection unit control method and system for strong turbulence condition | |
| US20210396209A1 (en) | Method for operating a wind power installation, controller for operating a wind power installation, and wind farm | |
| CA2511973C (en) | Management system for the operation of a wind turbine | |
| CN109611270A (en) | A kind of Control of decreasing load method of wind power generating set primary frequency modulation | |
| CN109737007A (en) | A kind of wind generating set yaw transfinites IPC variable Rate closing method | |
| CN103147918B (en) | Control method and control device for vertical-axis wind generating set | |
| CN107630785B (en) | Wind turbines Protection control system under one kind of multiple operating conditions | |
| US11936328B2 (en) | Method of operating a hybrid power plant to optimize PV power output | |
| CN103590973B (en) | A kind of pitch control method be applied under wind power generating set strong wind operating mode | |
| CN113153637B (en) | Flexible expansion control method and system for cut-out wind speed of megawatt wind turbine generator | |
| CN108412690B (en) | Three-section type high-wind-energy-capture-rate wind generating set yawing method and system | |
| WO2016184470A1 (en) | Method and system for controlling a wind turbine generator | |
| CN112610410B (en) | Wind generating set tower clearance regulation and control method and module | |
| CN109667713B (en) | Power increasing control method and device for wind generating set | |
| Bao et al. | A data-driven approach for identification and compensation of wind turbine inherent yaw misalignment | |
| CN114566981A (en) | Wind power plant primary frequency modulation control method based on data prediction | |
| CN112271758A (en) | Control method for fast grid connection of wind generating set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |