CN116187218A - Wind power plant sector management control method and device - Google Patents

Wind power plant sector management control method and device Download PDF

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CN116187218A
CN116187218A CN202310107823.3A CN202310107823A CN116187218A CN 116187218 A CN116187218 A CN 116187218A CN 202310107823 A CN202310107823 A CN 202310107823A CN 116187218 A CN116187218 A CN 116187218A
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wind
wind turbine
preset
sector
fatigue
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高静方
丁亮
赵冰
曹扬
王亮
刘红
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Guodian United Power Technology Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
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    • G06FELECTRIC DIGITAL DATA PROCESSING
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    • YGENERAL 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
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Abstract

The invention provides a wind farm sector management control method and device, and belongs to the technical field of wind power generation. The method comprises the following steps: acquiring a first fatigue load of each wind turbine in a wind power plant; determining a secondary wind direction sector and a main wind direction sector of a wind turbine generator set with a first fatigue load exceeding a preset fatigue threshold value based on a wind rose diagram of a wind power plant; and selecting a target unit from the wind turbine units with the first fatigue load exceeding a preset fatigue threshold value, and performing power control on a secondary wind direction sector of the target unit according to a preset control rule. The method and the device for managing and controlling the sector of the wind power plant have the advantages of further ensuring the generating capacity of the wind power plant, protecting the wind power generator set with high failure rate and reducing misoperation of sector management of the wind power generator set.

Description

Wind power plant sector management control method and device
Technical Field
The invention relates to the technical field of wind power generation, in particular to a wind power plant sector management control method, a wind power plant sector management control device, electronic equipment and a machine-readable storage medium.
Background
When the wind farm has complex topography and unreasonable machine position arrangement, a plurality of machine position loads can exceed standard due to the influence of wind speed turbulence and the like, and sector management is required to be arranged for the incoming wind direction with large turbulence intensity and changeable inflow angle to limit the output of a fan or stop protection.
At present, a method for establishing sector management is generally adopted to calculate turbulence intensity and fatigue load of wind turbine units, and sector management strategies of each unit of a wind field are further established according to specific values of the turbulence intensity and the fatigue load, or the actual wind measuring tower data of the wind field or the running wind speed data of the units are combined to optimize the sector management strategies of the wind field. However, because the turbulence of the wind turbine is greatly influenced by the adjacent turbine, the operation and the shutdown of the front turbine have great influence on the turbulence of the rear turbine, and therefore, the unified sector management of the turbine is adopted, so that the generated energy is reduced, and the wind turbine cannot be effectively utilized.
Disclosure of Invention
The invention aims to provide a method and a device for managing and controlling a sector of a wind power plant, which at least solve the problems that the adoption of unified sector management of units can lead to the reduction of generated energy and the effective utilization of the wind power units cannot be realized.
To achieve the above object, a first aspect of the present invention provides a wind farm sector management control method, the method including:
acquiring a first fatigue load of each wind turbine in a wind power plant;
determining a secondary wind direction sector and a main wind direction sector of a wind turbine generator set with a first fatigue load exceeding a preset fatigue threshold value based on a wind rose diagram of a wind power plant;
and selecting a target unit from the wind turbine units with the first fatigue load exceeding a preset fatigue threshold value, and performing power control on a secondary wind direction sector of the target unit according to a preset control rule.
Optionally, obtaining a first fatigue load of each wind turbine in the wind farm includes:
based on wind farm topography data, position arrangement data of wind turbines, wind turbine running data and wind farm meteorological data of a past period of time, a wind current field model is established by utilizing a CFD technology, and a first fatigue load of the wind turbines in the past period of time is determined by utilizing the wind current field model.
Optionally, selecting the target unit from the wind turbines with the first fatigue load exceeding the preset fatigue threshold value includes:
dividing wind turbines with a first fatigue load exceeding a preset fatigue threshold into a first wind turbine and a second wind turbine based on wind turbine position arrangement data of the wind turbines, wherein the second wind turbine at least comprises two wind turbines with mutual turbulence influence;
and determining at least one wind turbine of the second type and the first type as the target wind turbine.
Optionally, determining at least one wind turbine of the second type of wind turbine and the first type of wind turbine as the target wind turbine includes:
for each second type of wind turbines:
and determining the wind turbine generator needing power control from the second wind turbine generator as the target generator by taking the target function of the maximum theoretical power generation amount of the second wind turbine generator and the fatigue load of each wind turbine generator in the second wind turbine generator meeting the preset fatigue threshold.
Optionally, determining at least one wind turbine of the second type of wind turbine and the first type of wind turbine as the target wind turbine further includes:
for each second type of wind turbines:
under the condition that the fatigue loads of the second-type wind turbine generators can meet the preset fatigue threshold value by performing power control on the secondary wind direction sector of any wind turbine generator in the second-type wind turbine generator;
obtaining the failure rate of the wind turbine in the second type of wind turbine;
and sequencing the wind turbine generators according to the order of the fault rate from high to low, and taking the generator set with the highest fault rate as the target generator set.
Optionally, the method further comprises:
after power control is performed on the secondary wind direction sector of the target unit:
re-acquiring a third fatigue load of the wind turbine generator set, wherein the first fatigue load exceeds a preset fatigue threshold value;
and if the third fatigue load still exceeds the preset fatigue threshold value, performing power control on the main wind direction sector of the wind turbine generator set, of which the third fatigue load still exceeds the preset fatigue threshold value, according to a preset control rule.
Optionally, the preset control rule includes:
if the duration of the wind direction corresponding to the target unit in the preset sector reaches a first preset duration, reducing the running power of the wind turbine to a preset power value;
if the duration of the wind direction corresponding to the target unit in the non-preset sector reaches the second preset duration, the operation power of the wind turbine unit is increased to a preset operation power value.
A second aspect of the present invention provides a wind farm sector management control apparatus, the apparatus comprising:
the parameter acquisition module is used for acquiring a first fatigue load of each wind turbine generator in the wind power plant;
the sector determining module is used for determining a secondary wind direction sector and a main wind direction sector of the wind turbine generator set with the first fatigue load exceeding a preset fatigue threshold value based on the wind rose diagram of the wind power plant;
and the selection control module is used for selecting a target unit from the wind turbines with the first fatigue load exceeding a preset fatigue threshold value and carrying out power control on a secondary wind direction sector of the target unit according to a preset control rule.
A third aspect of the present invention provides an electronic device comprising a memory, a processor and a computer program stored in said memory and executable on said processor, characterized in that said processor implements the above-mentioned wind farm sector management control method when executing said computer program.
In another aspect, the present invention provides a machine-readable storage medium having stored thereon instructions for causing a machine to perform the above-described wind farm sector management control method.
According to the technical scheme, the sector management control of the wind turbine is realized by comprehensively considering the fatigue load factors, the dynamic influence factors among the wind turbines and the health factors of the wind turbines, the generated energy of a wind power plant can be further ensured, the wind turbines with high failure rate can be protected, and the misoperation of sector management of the wind turbines can be reduced.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain, without limitation, the embodiments of the invention. In the drawings:
FIG. 1 is a flow chart of a method for controlling sector management of a wind farm provided by the invention;
FIG. 2 is a flow chart of a selection target unit provided by the invention;
fig. 3 is a schematic structural diagram of a wind farm sector management control device provided by the invention.
Description of the reference numerals
10-a parameter acquisition module; a 20-sector determination module;
30-select control module.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
FIG. 1 is a flow chart of a method for controlling sector management of a wind farm provided by the invention; FIG. 2 is a flow chart of a selection target unit provided by the invention; fig. 3 is a schematic structural diagram of a wind farm sector management control device provided by the invention.
As shown in fig. 1, an embodiment of the present invention provides a method for controlling sector management of a wind farm, where the method includes:
step 101, obtaining a first fatigue load of each wind turbine in a wind power plant;
step 102, determining a secondary wind direction sector and a main wind direction sector of a wind turbine generator set with a first fatigue load exceeding a preset fatigue threshold value based on wind rose diagrams of a wind farm;
and 103, selecting a target unit from the wind turbines with the first fatigue load exceeding a preset fatigue threshold, and performing power control on a secondary wind direction sector of the target unit according to a preset control rule.
In step 102, the wind rose chart is a statistical chart of the frequency of occurrence of each wind direction or the average wind speed of each wind direction in a certain period of time in a certain region plotted by dots on the polar base chart, and the azimuth with the largest frequency in the wind direction rose chart indicates that the wind direction occurs most frequently. The most common wind rose is a circle, on which 16 radial lines are drawn, representing 16 different directions, the length of each line being proportional to the frequency of the wind in that direction. The frequency of calm wind is in the middle. The wind speed ranges of all wind directions are also indicated on some wind rose diagrams, and in this way, the secondary wind direction sector and the main wind direction sector of the wind turbine generator can be determined according to the occurrence frequency of the wind directions, wherein the main wind direction sector is the direction with the highest occurrence frequency of the corresponding wind direction, and the secondary wind direction sector is the direction with the lowest occurrence frequency of the corresponding wind direction. In step 103, selecting the target unit may select the target unit from wind turbines having a first fatigue load exceeding a preset fatigue threshold based on a unit fatigue load factor, an inter-unit dynamic impact factor, and a unit health factor.
In another embodiment, after the power control is performed on the secondary wind direction sector of the target unit, when the wind direction deviates from the corresponding angle of the secondary wind direction sector and still meets the preset condition after a preset period of time, the normal control of the fan is restored, so that the unit is prevented from frequently entering and exiting the sector management, and the unit sector management misoperation is reduced.
Further, obtaining a first fatigue load of each wind turbine in the wind farm includes:
based on wind farm topography data, position arrangement data of wind turbines, wind turbine running data and wind farm meteorological data of past period of time, a wind flow field model is established, and a first fatigue load of the wind turbines in the past period of time is determined by the wind flow field model.
Specifically, firstly, a wind farm topography model can be established through wind farm topography data, the machine position of a wind turbine generator set is marked on the wind farm topography model, then a wind current field model is established by combining a CFD technology, and the wind farm topography model is established by a technology well known to a person skilled in the art and is not described herein. The operation data of the wind turbine generator are data such as the operation power of a fan corresponding to the wind turbine generator at different times.
Further, the wind flow field model is constructed based on CFD technology.
Specifically, CFD is an abbreviation of english Computational Fluid Dynamics (computational fluid dynamics). CFD has been developed with the development of computer technology and numerical computing technology. Briefly, CFD is equivalent to "virtually" performing experiments in a computer to simulate actual fluid flow conditions. The basic principle is to numerically solve a differential equation for controlling fluid flow, and obtain discrete distribution of a fluid flow field of fluid flow on a continuous area, so that the fluid flow condition is approximately simulated. CFD can be considered as one of the modern analog simulation techniques. In the embodiment, a wind flow field model can be constructed by utilizing a CFD technology based on wind power field topographic data, position arrangement data of wind turbines, operation data of wind turbines and wind power field meteorological data of a past period of time. The fatigue load calculation method is used for simulating the running state of the wind turbine generator so as to calculate and obtain the fatigue load of the wind turbine generator.
Further, as shown in fig. 2, selecting a target unit from wind turbines having a first fatigue load exceeding a preset fatigue threshold includes:
step 301, dividing a wind turbine generator set with a first fatigue load exceeding a preset fatigue threshold into a first type wind turbine generator set and a second type wind turbine generator set based on wind turbine generator set position arrangement data, wherein the second type wind turbine generator set at least comprises two wind turbine generator sets with mutual turbulence influence;
and 302, determining at least one wind turbine of the second type of wind turbine and the first type of wind turbine as the target wind turbine.
Specifically, in this embodiment, the wind turbines with the first fatigue load exceeding the preset fatigue threshold are divided into the first wind turbine and the second wind turbine, where the wind turbines of the second wind turbine have a turbulent flow effect with each other, so when sector control is performed, for the first wind turbine (for example, the wind turbines are far away from the position of the peripheral wind turbine and have no mutual effect with each other), the reason that the fatigue load of the first wind turbine exceeds the preset fatigue threshold is usually only related to the running duration of the first wind turbine, and the first wind turbine is directly determined as the target wind turbine. For the second-class wind turbine, taking the second-class wind turbine as an example, because the wind turbines in the second-class wind turbine have mutual influence, for example, because the distance between partial wind turbines is relatively close, the condition that the load exceeds standard due to the fact that the turbulence of the rear wind turbine is large caused by the operation of the front wind turbine exists, and therefore, two conditions exist, namely: only one wind turbine generator set of the two wind turbine generator sets needs to be controlled in the secondary wind direction sector, so that the fatigue loads of the two wind turbine generator sets can meet the preset fatigue threshold value, and the two wind turbine generator sets need to be controlled in the secondary wind direction sector, so that the fatigue loads of the two wind turbine generator sets meet the preset fatigue threshold value.
In this embodiment, the dividing of the first type wind turbine and the second type wind turbine may specifically be the following method:
determining mutual spacing distances of wind turbine generators, and determining the wind turbine generators as first-class wind turbine generators if the spacing distances of the wind turbine generators exceed a preset distance threshold;
if the interval distance of the wind turbines does not exceed the preset distance threshold, determining turbulence of the adjacent turbines on the same wind direction section according to the wind incoming direction of the wind power plant and the turbine operation data (including the conditions of presence operation and absence operation) of the turbines, namely comparing the turbulence of the turbines on the wind direction section at the upstream with the turbulence of the turbines on the downstream under the condition of no shutdown, and if the turbulence change is greater than the preset turbulence threshold, indicating that the interaction is greater, and determining the turbines as the second type wind turbines.
The second type of wind turbines comprises a plurality of groups of sub wind turbines, the sub wind turbines can be divided into areas according to the positions of the sub wind turbines, the wind turbines in the same area are determined to be the same sub wind turbine, and each sub wind turbine is divided into: and determining the wind turbine generators with the failure rate exceeding a preset failure rate threshold value in the same sub wind turbine generator as the target wind turbine generator.
Further, determining at least one wind turbine of the second type of wind turbine and the first type of wind turbine as the target wind turbine includes:
for each second type of wind turbines:
and determining the wind turbine generator needing power control from the second wind turbine generator as the target generator by taking the target function of the maximum theoretical power generation amount of the second wind turbine generator and the fatigue load of each wind turbine generator in the second wind turbine generator meeting the preset fatigue threshold.
Further, determining at least one wind turbine of the second type of wind turbine and the first type of wind turbine as the target wind turbine, further includes:
for each second type of wind turbines:
under the condition that the fatigue loads of the second-type wind turbine generators can meet the preset fatigue threshold value by performing power control on the secondary wind direction sector of any wind turbine generator in the second-type wind turbine generator;
obtaining the failure rate of the wind turbine in the second type of wind turbine;
and sequencing the wind turbine generators according to the order of the fault rate from high to low, and taking the generator set with the highest fault rate as the target generator set.
Specifically, in this embodiment, a wind turbine generator set that needs to be subjected to power control is determined from the second wind turbine generator set by using, as an objective function, a theoretical power generation amount of the second wind turbine generator set being the largest and a fatigue load of each wind turbine generator set in the second wind turbine generator set meeting a preset fatigue threshold, as the objective unit.
In this embodiment, for an example that only two wind turbine generators are included in a certain second wind turbine generator, first, each wind turbine generator in the second wind turbine generator is selected in turn as a target wind turbine generator to perform sector control, and whether fatigue loads of all wind turbines in the second wind turbine generator meet a preset threshold is checked, and a sector control strategy of the target wind turbine generator for minimizing sector loss electric quantity is found through multiple cycles; then, if the sector intervals, the management time length and the lost electric quantity of different target units have obvious differences on the premise of meeting the overall fatigue load index, the target unit with small lost electric quantity is selected, and the fault rate judgment is not performed. In general, there is no obvious difference in sector management modes of selecting different target units by the second type of wind turbines, namely, the front and back rows of wind turbines influence each other, namely, the situation of selecting multiple target units occurs when any one of the front row and the back row of wind turbines is used as a target unit, and then the failure rate of the wind turbines needs to be further compared, the wind turbines are ordered according to the order from the high failure rate to the low failure rate, and the wind turbines with high failure rate are used as final target units of the second type of wind turbines.
By adopting the mode, the working time of the unit with high failure rate can be reduced, the unit with high failure rate is protected, namely, the fatigue load is controlled, and the failure rate of the unit is controlled, so that the service life of the unit is prolonged.
In another embodiment, after the calculation is performed through the two cases, the fatigue load of each wind turbine generator set cannot meet the preset fatigue threshold all the time, at this time, the objective function has no solution under the current condition, and then power control is performed on the main wind direction sector of the wind turbine generator set in the second type wind turbine generator set according to the order of the wind turbine generator set fault rate from large to small.
Further, the method further comprises:
after power control is performed on the secondary wind direction sector of the target unit:
re-acquiring a third fatigue load of the wind turbine generator set, wherein the first fatigue load exceeds a preset fatigue threshold value;
and if the third fatigue load still exceeds the preset fatigue threshold value, performing power control on the main wind direction sector of the wind turbine generator set, of which the third fatigue load still exceeds the preset fatigue threshold value, according to a preset control rule.
Specifically, taking the first type of wind turbine generator as an example, firstly, performing power control on a secondary wind direction sector of the wind turbine generator, so as to reduce the total running time (running amount) of the wind turbine generator, after performing power control on the secondary wind direction sector, calculating a third fatigue load of the wind turbine generator under the current control strategy through a wind flow field model, and if the third fatigue load of a part of the wind turbine generator is still greater than a preset fatigue threshold value, further controlling the running time (running amount) of the part of the wind turbine generator on the basis of the current control is required, so that the power control is performed on a main wind direction sector of the wind turbine generator, of which the third fatigue load still exceeds the preset fatigue threshold value, and in this way, the annual energy generation of a wind field is ensured while the fatigue load of the wind turbine generator is reduced.
Further, the preset control rule includes:
if the duration of the wind direction corresponding to the target unit in the preset sector reaches a first preset duration, reducing the running power of the wind turbine to a preset power value;
if the duration of the wind direction corresponding to the target unit in the non-preset sector reaches the second preset duration, the operation power of the wind turbine unit is increased to a preset operation power value.
Specifically, the first preset duration and the second preset duration can be set to 30 seconds, and the specific duration can be set according to the actual wind direction condition of the wind turbine generator set and the like; the preset power value can be that the power is reduced to half of the current power of the wind turbine generator, or the power is directly reduced to 0, so that the shutdown of the wind turbine generator in the secondary wind direction sector is realized; the preset operation power value is the initial operation power of the set wind turbine generator, and can be determined according to actual conditions; the determination of the preset sector can be performed according to the wind direction, the wind power and the working state of the wind turbine generator. In this way, the sector management is only entered after the preset sector is continuously set for 30 seconds in the wind direction, and the sector management is only exited after the wind direction deviates from the preset sector for 30 seconds, so that the frequent entering and exiting of the unit in the sector management can be prevented, and the unit sector management misoperation is reduced.
In another embodiment, it is understood that: according to the scheme, the process of sector control is optimized through repeated multiple times, so that the generated energy of the wind turbine generator in the wind power plant is maximized under the condition of meeting fatigue load.
As shown in fig. 3, an embodiment of the present invention provides a wind farm sector management control device, including:
the parameter acquisition module 10 is used for acquiring a first fatigue load of each wind turbine generator in the wind power plant;
the sector determining module 20 is configured to determine, based on a wind rose diagram of the wind farm, a secondary wind direction sector and a primary wind direction sector of the wind turbine generator in which the first fatigue load exceeds a preset fatigue threshold;
the selection control module 30 is configured to select a target unit from wind turbines with a first fatigue load exceeding a preset fatigue threshold, and perform power control on a secondary wind direction sector of the target unit according to a preset control rule.
The embodiment of the invention also provides electronic equipment, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, and is characterized in that the method for managing and controlling the sector of the wind power plant is realized when the processor executes the computer program.
The embodiment of the invention also provides a machine-readable storage medium, wherein the machine-readable storage medium is stored with instructions for enabling a machine to execute the wind farm sector management control method.
Those skilled in the art will appreciate that all or part of the steps in a method for implementing the above embodiments may be implemented by a program stored in a storage medium, where the program includes several instructions for causing a single-chip microcomputer, chip or processor (processor) to perform all or part of the steps in a method according to the embodiments of the invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
The alternative embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the embodiments of the present invention are not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the embodiments of the present invention within the scope of the technical concept of the embodiments of the present invention, and all the simple modifications belong to the protection scope of the embodiments of the present invention. In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the various possible combinations of embodiments of the invention are not described in detail.
In addition, any combination of the various embodiments of the present invention may be made, so long as it does not deviate from the idea of the embodiments of the present invention, and it should also be regarded as what is disclosed in the embodiments of the present invention.

Claims (10)

1. A method for controlling sector management of a wind farm, the method comprising:
acquiring a first fatigue load of each wind turbine in a wind power plant;
determining a secondary wind direction sector and a main wind direction sector of a wind turbine generator set with a first fatigue load exceeding a preset fatigue threshold value based on a wind rose diagram of a wind power plant;
and selecting a target unit from the wind turbine units with the first fatigue load exceeding a preset fatigue threshold value, and performing power control on a secondary wind direction sector of the target unit according to a preset control rule.
2. The method of claim 1, wherein obtaining a first fatigue load for each wind turbine within a wind farm comprises:
based on wind farm topography data, position arrangement data of wind turbines, wind turbine running data and wind farm meteorological data of a past period of time, a wind current field model is established by utilizing a CFD technology, and a first fatigue load of the wind turbines in the past period of time is determined by utilizing the wind current field model.
3. The method of claim 1, wherein selecting the target unit from among the wind turbines having a first fatigue load exceeding a preset fatigue threshold comprises:
dividing wind turbines with a first fatigue load exceeding a preset fatigue threshold into a first wind turbine and a second wind turbine based on wind turbine position arrangement data of the wind turbines, wherein the second wind turbine at least comprises two wind turbines with mutual turbulence influence;
and determining at least one wind turbine of the second type and the first type as the target wind turbine.
4. A method according to claim 3, wherein determining at least one wind turbine of the second type of wind turbine and the first type of wind turbine as the target wind turbine comprises:
for each second type of wind turbines:
and determining the wind turbine generator needing power control from the second wind turbine generator as the target generator by taking the target function of the maximum theoretical power generation amount of the second wind turbine generator and the fatigue load of each wind turbine generator in the second wind turbine generator meeting the preset fatigue threshold.
5. The method of claim 4, wherein determining at least one wind turbine of the second type of wind turbine and the first type of wind turbine as the target wind turbine further comprises:
for each second type of wind turbines:
under the condition that the fatigue loads of the second-type wind turbine generators can meet the preset fatigue threshold value by performing power control on the secondary wind direction sector of any wind turbine generator in the second-type wind turbine generator;
obtaining the failure rate of the wind turbine in the second type of wind turbine;
and sequencing the wind turbine generators according to the order of the fault rate from high to low, and taking the generator set with the highest fault rate as the target generator set.
6. The method according to claim 1, wherein the method further comprises:
after power control is performed on the secondary wind direction sector of the target unit:
re-acquiring a third fatigue load of the wind turbine generator set, wherein the first fatigue load exceeds a preset fatigue threshold value;
and if the third fatigue load still exceeds the preset fatigue threshold value, performing power control on the main wind direction sector of the wind turbine generator set, of which the third fatigue load still exceeds the preset fatigue threshold value, according to a preset control rule.
7. The method of claim 1, wherein the preset control rule comprises:
if the duration of the wind direction corresponding to the target unit in the preset sector reaches a first preset duration, reducing the running power of the wind turbine to a preset power value;
if the duration of the wind direction corresponding to the target unit in the non-preset sector reaches the second preset duration, the operation power of the wind turbine unit is increased to a preset operation power value.
8. A wind farm sector management control device, the device comprising:
the parameter acquisition module is used for acquiring a first fatigue load of each wind turbine generator in the wind power plant;
the sector determining module is used for determining a secondary wind direction sector and a main wind direction sector of the wind turbine generator set with the first fatigue load exceeding a preset fatigue threshold value based on the wind rose diagram of the wind power plant;
and the selection control module is used for selecting a target unit from the wind turbines with the first fatigue load exceeding a preset fatigue threshold value and carrying out power control on a secondary wind direction sector of the target unit according to a preset control rule.
9. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the wind farm sector management control method of any of claims 1-7 when the computer program is executed.
10. A machine-readable storage medium having stored thereon instructions for causing a machine to perform the wind farm sector management control method of any of claims 1-7.
CN202310107823.3A 2023-01-31 2023-01-31 Wind power plant sector management control method and device Pending CN116187218A (en)

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CN116187218A true CN116187218A (en) 2023-05-30

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