CN114970209A - Control method and device for wind turbine generator - Google Patents
Control method and device for wind turbine generator Download PDFInfo
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- CN114970209A CN114970209A CN202210752661.4A CN202210752661A CN114970209A CN 114970209 A CN114970209 A CN 114970209A CN 202210752661 A CN202210752661 A CN 202210752661A CN 114970209 A CN114970209 A CN 114970209A
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- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000004088 simulation Methods 0.000 claims abstract description 64
- 230000001052 transient effect Effects 0.000 claims abstract description 40
- 230000008569 process Effects 0.000 claims abstract description 24
- 238000004590 computer program Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000011217 control strategy Methods 0.000 abstract description 4
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- 238000010586 diagram Methods 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/06—Wind turbines or wind farms
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/02—Reliability analysis or reliability optimisation; Failure analysis, e.g. worst case scenario performance, failure mode and effects analysis [FMEA]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
The method and the device for controlling the wind turbine generator set and the storage medium provided by the disclosure are used for obtaining historical operating data of the wind turbine generator set, establishing an electrical transient simulation model of the wind turbine generator set based on the historical operating data, simulating different capacities of the wind turbine generator set through the electrical transient simulation model of the wind turbine generator set to obtain simulation results of grid-connected impact currents corresponding to the wind turbine generator sets with different capacity grades, adjusting the proportion between the rotating speed and the wind speed of the wind turbine generator set in the electrical transient simulation model of the wind turbine generator set based on the simulation results, obtaining the optimal proportion coefficient between the rotating speed and the wind speed corresponding to the wind turbine generator sets with different capacity grades, determining the optimal closing time of the medium-voltage circuit breaker by using the optimal proportion coefficient in the process of controlling the rotating speed of the wind turbine generator set, and controlling grid-connected overcurrent in the optimal state according to the optimal closing time. Therefore, the grid-connected impact current is controlled, damage to the service life of the wind turbine generator in the grid-connected process is reduced, and the fan rotating speed control strategy is optimized.
Description
Technical Field
The present disclosure relates to the field of wind power generation, and more particularly, to a method, an apparatus, and a storage medium for controlling a wind turbine.
Background
With the rapid development of wind power, the form of a high-proportion wind power system in part of regions is basically formed. The single machine capacity distribution of the onshore wind turbine generator set is relatively wide and can be from 1500kW to 6000 kW. However, in the grid-connected stage of the converter, with the increase of the capacity of the fans with different capacities, the stator impact current will increase in proportion, although the converter will control the magnitude of the stator current by controlling the frequency, phase and amplitude of the rotor exciting current. However, the rotating speed of the wind turbine generator needs to be considered in the grid connection process, so that the rotating speed of the fan is not too low at the minimum wind speed, grid connection cannot be performed, and the rotating speed is not too high when the wind speed is too high, so that grid connection impact current is too large.
Disclosure of Invention
The application provides a control method, a control device and a storage medium of a wind turbine generator, which are used for controlling the rotating speed of the wind turbine generator in the grid connection process.
An embodiment of a first aspect of the present application provides a control method for a wind turbine, including:
acquiring historical operating data of the wind turbine generator;
establishing an electrical transient simulation model of the wind turbine generator based on the historical operation data;
simulating different capacities of the wind turbine generator through the wind turbine generator electrical transient simulation model to obtain simulation results of grid-connected impact currents corresponding to the wind turbine generators with different capacity grades;
and adjusting the proportion between the rotating speed and the wind speed of the wind turbine generator in the wind turbine generator electrical transient simulation model based on the simulation result to obtain the optimal proportion coefficient between the rotating speed and the wind speed corresponding to the wind turbine generators with different capacity grades, so that the optimal closing time of the medium-voltage circuit breaker is determined by utilizing the optimal proportion coefficient in the process of controlling the rotating speed of the wind turbine generator, and the grid-connected overcurrent is controlled in the optimal state according to the optimal closing time.
An embodiment of a second aspect of the present application provides a control apparatus for a wind turbine, including:
the acquisition module is used for acquiring historical operating data of the wind turbine generator;
the establishing module is used for establishing an electrical transient simulation model of the wind turbine generator based on the historical operating data;
the simulation module is used for simulating different capacities of the wind turbine generator through the wind turbine generator electrical transient simulation model to obtain simulation results of grid-connected impact currents corresponding to the wind turbine generators with different capacity grades;
and the control module is used for adjusting the proportion between the rotating speed and the wind speed of the wind generation set in the wind generation set electrical transient simulation model based on the simulation result to obtain the optimal proportion coefficient between the rotating speed and the wind speed corresponding to the wind generation sets with different capacity grades, so that the optimal closing time of the medium-voltage circuit breaker is determined by utilizing the optimal proportion coefficient in the process of controlling the rotating speed of the wind generation set, and grid-connected overcurrent is controlled in the optimal state according to the optimal closing time.
A computer device according to an embodiment of the third aspect of the present application is characterized by comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the method according to the first aspect is implemented.
A computer storage medium according to an embodiment of a fourth aspect of the present application, wherein the computer storage medium stores computer-executable instructions; the computer executable instructions, when executed by a processor, are capable of performing the method of the first aspect as described above.
The technical scheme provided by the embodiment of the application at least has the following beneficial effects:
the method and the device for controlling the wind turbine generator set and the storage medium provided by the disclosure are used for obtaining historical operating data of the wind turbine generator set, establishing an electrical transient simulation model of the wind turbine generator set based on the historical operating data, simulating different capacities of the wind turbine generator set through the electrical transient simulation model of the wind turbine generator set to obtain simulation results of grid-connected impact currents corresponding to the wind turbine generator sets with different capacity grades, adjusting the proportion between the rotating speed and the wind speed of the wind turbine generator set in the electrical transient simulation model of the wind turbine generator set based on the simulation results, obtaining the optimal proportion coefficient between the rotating speed and the wind speed corresponding to the wind turbine generator sets with different capacity grades, determining the optimal closing time of the medium-voltage circuit breaker by using the optimal proportion coefficient in the process of controlling the rotating speed of the wind turbine generator set, and controlling grid-connected overcurrent in the optimal state according to the optimal closing time. Therefore, according to the method, the optimal proportionality coefficient between the rotating speed and the wind speed corresponding to the wind turbines with different capacity grades is obtained through the electrical transient simulation model of the wind turbines, then the wind turbines are controlled based on the optimal proportionality coefficient, grid-connected impact current is controlled, damage to the service life of the wind turbines in the grid-connected process is reduced, meanwhile, a fan rotating speed control strategy is optimized through the optimal proportionality coefficient, and the maximum wind power of the wind turbines in the grid-connected process is captured when the wind turbines are started.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flow chart of a control method of a wind turbine generator according to the present application;
fig. 2 is a schematic structural diagram of a control device of a wind turbine generator according to the present application.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
The following describes a control method and device for a wind turbine generator according to an embodiment of the present application with reference to the drawings.
Example one
Fig. one is a schematic flowchart of a control method for a wind turbine generator according to an embodiment of the present application, and as shown in fig. 1, the control method may include:
In one embodiment of the present application, the operation data includes wind speed, fan power, fan speed, and generated power.
102, establishing an electrical transient simulation model of the wind turbine generator based on historical operation data.
In an embodiment of the application, based on the historical operating data, the corresponding historical operating data of the wind turbine generators with different single machine capacity grades in the grid connection process can be obtained.
In an embodiment of the application, an electrical transient simulation model of the wind turbine generator can be established through the historical operating data, so that simulation is performed on the grid connection process of the wind turbine generator.
Further, in an embodiment of the present application, the wind turbine components simulated in the wind turbine electrical transient simulation model may include a wind turbine impeller, a transmission chain, a generator, and a converter.
103, simulating different capacities of the wind turbine generator through the wind turbine generator electrical transient simulation model to obtain simulation results of grid-connected impact currents corresponding to the wind turbine generators with different capacity grades.
In one embodiment of the application, the wind turbine generator electrical transient simulation model is simulated by adopting standard air density and normal temperature and atmospheric pressure for 80 s.
In an embodiment of the present application, the different capacity levels of the wind turbine generator may include: 1500kW, 2000kW, 3000kW, 4800 kW.
Further, in an embodiment of the application, different capacities of the wind turbine are simulated through the wind turbine electrical transient simulation model, and maximum values of fault impact currents corresponding to the wind turbines with different capacity grades can be obtained.
Specifically, in an embodiment of the application, a 1500kW wind turbine generator system fault impact current obtained through the wind turbine generator system electrical transient simulation model is 6794a, a 2000kW wind turbine generator system fault impact current maximum value is 8961A, a 3000kW wind turbine generator system fault impact current maximum value is 13260A, and a 4800kW wind turbine generator system fault impact current maximum value is 19830A.
And 104, adjusting the ratio of the rotating speed of the wind turbine generator to the wind speed in the wind turbine generator electrical transient simulation model based on the simulation result to obtain the optimal ratio coefficient between the rotating speed and the wind speed corresponding to the wind turbine generators with different capacity grades.
In an embodiment of the application, after the optimal proportionality coefficient between the rotating speed and the wind speed corresponding to the wind turbine generators with different capacity grades is obtained through the step 104, in the process of controlling the rotating speed of the wind turbine generator, the optimal closing time of the medium voltage circuit breaker can be determined by using the optimal proportionality coefficient, and the grid-connected overcurrent is controlled in the optimal state according to the optimal closing time.
And, in one embodiment of the present application, a method of determining an optimal closing time of a medium voltage circuit breaker using an optimal proportionality factor may include: and when the rotating speed of the wind turbine reaches the grid-connected rotating speed obtained based on the optimal proportionality coefficient, closing the medium-voltage circuit breaker.
Further, in an embodiment of the application, the rotating speed of the wind turbine generator is controlled by using the optimal proportion coefficient, so that the fault impact current of the 1500kW wind turbine generator set is 5686A, the maximum value of the fault impact current of the 2000kW wind turbine generator set is 7991A, the maximum value of the fault impact current of the 3000kW wind turbine generator set is 12100A, and the maximum value of the fault impact current of the 4800kW wind turbine generator set is 19140A. According to the results, the wind turbine generator can be controlled through the optimal proportionality coefficient, so that the grid connection impact current is controlled, and the damage to the service life of the wind turbine generator in the grid connection process is reduced.
The method for controlling the wind turbine generator comprises the steps of obtaining historical operating data of the wind turbine generator, establishing an electrical transient simulation model of the wind turbine generator based on the historical operating data, simulating different capacities of the wind turbine generator through the electrical transient simulation model of the wind turbine generator to obtain simulation results of grid-connected impact currents corresponding to the wind turbine generator with different capacity grades, adjusting the proportion between the rotating speed and the wind speed of the wind turbine generator in the electrical transient simulation model of the wind turbine generator based on the simulation results to obtain the optimal proportion coefficient between the rotating speed and the wind speed corresponding to the wind turbine generator with different capacity grades, determining the optimal closing time of a medium-voltage circuit breaker by using the optimal proportion coefficient in the process of controlling the rotating speed of the wind turbine generator, and controlling grid-connected overcurrent in the optimal state according to the optimal closing time. Therefore, according to the method, the optimal proportionality coefficient between the rotating speed and the wind speed corresponding to the wind turbines with different capacity grades is obtained through the electrical transient simulation model of the wind turbine, then the wind turbine is controlled based on the optimal proportionality coefficient, so that grid-connected impact current is controlled, damage to the service life of the wind turbine in the grid-connected process is reduced, and meanwhile, a fan rotating speed control strategy is optimized through the optimal proportionality coefficient, so that the maximum wind power of the wind turbine in the grid-connected process is captured when the wind turbine is started.
Example two
Fig. two is a schematic structural diagram of a control device of a wind turbine generator according to the present application, as shown in fig. 2, the control device may include:
the acquiring module 201 is used for acquiring historical operating data of the wind turbine generator;
the establishing module 202 is used for establishing an electrical transient simulation model of the wind turbine generator based on historical operating data;
the simulation module 203 is used for simulating different capacities of the wind turbine generator through the wind turbine generator electrical transient simulation model to obtain simulation results of grid-connected impact currents corresponding to the wind turbine generators with different capacity grades;
and the control module 204 is configured to adjust a ratio between the rotating speed and the wind speed of the wind turbine in the wind turbine electrical transient simulation model based on the simulation result to obtain an optimal ratio coefficient between the rotating speed and the wind speed corresponding to the wind turbines with different capacity grades, so that in the process of controlling the rotating speed of the wind turbine, the optimal closing time of the medium voltage circuit breaker is determined by using the optimal ratio coefficient, and grid-connected overcurrent is controlled in an optimal state according to the optimal closing time.
The control device of the wind turbine generator provided by the disclosure obtains historical operation data of the wind turbine generator, establishes a wind turbine generator electrical transient simulation model based on the historical operation data, simulates different capacities of the wind turbine generator through the wind turbine generator electrical transient simulation model to obtain simulation results of grid-connected impact currents corresponding to the wind turbine generators with different capacity grades, adjusts the proportion between the rotating speed and the wind speed of the wind turbine generator in the wind turbine generator electrical transient simulation model based on the simulation results to obtain the optimal proportional coefficient between the rotating speed and the wind speed corresponding to the wind turbine generator with different capacity grades, determines the optimal closing time of the medium-voltage circuit breaker by using the optimal proportional coefficient in the process of controlling the rotating speed of the wind turbine generator, and controls grid-connected overcurrent to be in the optimal state according to the optimal closing time. Therefore, according to the method, the optimal proportionality coefficient between the rotating speed and the wind speed corresponding to the wind turbines with different capacity grades is obtained through the electrical transient simulation model of the wind turbine, then the wind turbine is controlled based on the optimal proportionality coefficient, so that grid-connected impact current is controlled, damage to the service life of the wind turbine in the grid-connected process is reduced, and meanwhile, a fan rotating speed control strategy is optimized through the optimal proportionality coefficient, so that the maximum wind power of the wind turbine in the grid-connected process is captured when the wind turbine is started.
In order to implement the above embodiments, the present disclosure also provides a computer device.
The computer equipment provided by the embodiment of the disclosure comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor, when executing the program, is able to implement the method as shown in fig. 1.
In order to implement the above embodiments, the present disclosure also provides a computer storage medium.
The computer storage medium provided by the embodiment of the disclosure stores computer executable instructions; the computer-executable instructions, when executed by a processor, enable the method illustrated in fig. 1 to be implemented.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A control method of a wind turbine generator is characterized by comprising the following steps:
acquiring historical operating data of the wind turbine generator;
establishing an electrical transient simulation model of the wind turbine generator based on the historical operating data;
simulating different capacities of the wind turbine generator through the wind turbine generator electrical transient simulation model to obtain simulation results of grid-connected impact currents corresponding to the wind turbine generators with different capacity grades;
and adjusting the proportion between the rotating speed and the wind speed of the wind turbine generator in the wind turbine generator electrical transient simulation model based on the simulation result to obtain the optimal proportion coefficient between the rotating speed and the wind speed corresponding to the wind turbine generators with different capacity grades, so that the optimal closing time of the medium-voltage circuit breaker is determined by utilizing the optimal proportion coefficient in the process of controlling the rotating speed of the wind turbine generator, and the grid-connected overcurrent is controlled in the optimal state according to the optimal closing time.
2. The method of claim 1, wherein the operational data comprises wind speed, fan power, fan speed, generated power.
3. The method of claim 1, wherein the simulated wind turbine components in the wind turbine electrical transient simulation model comprise: the wind driven generator comprises a wind driven generator impeller, a transmission chain, a generator and a converter.
4. The method of claim 1, wherein determining an optimal medium voltage circuit breaker closing time in controlling each fan speed using the optimal scaling factor comprises: and when the rotating speed of the wind turbine generator reaches the grid-connected rotating speed obtained based on the optimal proportionality coefficient, closing the medium-voltage circuit breaker.
5. A control device for a wind turbine, characterized in that the device comprises:
the acquisition module is used for acquiring historical operating data of the wind turbine generator;
the establishing module is used for establishing an electrical transient simulation model of the wind turbine generator based on the historical operation data;
the simulation module is used for simulating different capacities of the wind turbine generator through the wind turbine generator electrical transient simulation model to obtain simulation results of grid-connected impact currents corresponding to the wind turbine generators with different capacity grades;
and the control module is used for adjusting the proportion between the rotating speed and the wind speed of the wind generation set in the wind generation set electrical transient simulation model based on the simulation result to obtain the optimal proportion coefficient between the rotating speed and the wind speed corresponding to the wind generation sets with different capacity grades, so that the optimal closing time of the medium-voltage circuit breaker is determined by utilizing the optimal proportion coefficient in the process of controlling the rotating speed of the wind generation set, and grid-connected overcurrent is controlled in the optimal state according to the optimal closing time.
6. The apparatus of claim 5, wherein the operational data comprises wind speed, fan power, fan speed, generated power.
7. The apparatus of claim 5, wherein the simulated wind turbine components in the wind turbine electrical transient simulation model comprise: the wind driven generator comprises a wind driven generator impeller, a transmission chain, a generator and a converter.
8. The apparatus of claim 5, wherein the control module is further configured to:
and when the rotating speed of the wind turbine generator reaches the grid-connected rotating speed obtained based on the optimal proportionality coefficient, closing the medium-voltage circuit breaker.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method according to any one of claims 1-4 when executing the program.
10. A computer storage medium, wherein the computer storage medium stores computer-executable instructions; the computer-executable instructions, when executed by a processor, are capable of performing the method of any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210752661.4A CN114970209A (en) | 2022-06-29 | 2022-06-29 | Control method and device for wind turbine generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210752661.4A CN114970209A (en) | 2022-06-29 | 2022-06-29 | Control method and device for wind turbine generator |
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| CN114970209A true CN114970209A (en) | 2022-08-30 |
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| CN202210752661.4A Pending CN114970209A (en) | 2022-06-29 | 2022-06-29 | Control method and device for wind turbine generator |
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