Wind farm sector management and control method and device

Abstract

The present invention provides a wind farm sector management and control method and device, belonging to the field of wind power generation technology. The method comprises: obtaining a first fatigue load for each wind turbine unit within the wind farm; determining, based on the wind rose diagram of the wind farm, the secondary wind direction sectors and the main wind direction sectors of the wind turbine units whose first fatigue load exceeds a preset fatigue threshold; selecting a target unit from the wind turbine units whose first fatigue load exceeds the preset fatigue threshold, and performing power control on the secondary wind direction sectors of the target units according to preset control rules. The wind farm sector management and control method and device of the present invention have the advantages of further ensuring the power generation of the wind farm, protecting wind turbine units with high failure rates, and reducing malfunctions in unit sector management.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a wind farm sector management and control method, a wind farm sector management and control device, an electronic device, and a machine-readable storage medium. Background Art

[0002] When the terrain of a wind farm is complex and the arrangement of wind turbine sites is unreasonable, the load on some wind turbine sites may exceed the standard due to influences such as wind speed turbulence. For wind directions with high turbulence intensity and variable inflow angles, sector management needs to be set up to limit wind turbine output or shut down for protection.

[0003] Current approaches to sector management typically involve calculating the turbulence intensity and fatigue load of wind turbines. These values are then used to further develop sector management strategies for each wind turbine in the wind farm. Alternatively, sector management strategies can be optimized based on actual wind tower data or wind speed data from wind turbines during operation. However, because the turbulence of wind turbines is significantly affected by adjacent turbines, and the operation and shutdown of front-row turbines significantly impact the turbulence of rear-row turbines, implementing unified sector management for all turbines results in reduced power generation and ineffective utilization of wind turbines. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide a wind farm sector management and control method and device to at least solve the above-mentioned problem that unified sector management of units will lead to reduced power generation and inability to achieve effective utilization of wind turbines.

[0005] In order to achieve the above objectives, the present invention provides a first aspect of a wind farm sector management and control method, the method comprising:

[0006] Obtaining a first fatigue load of each wind turbine in the wind farm;

[0007] Based on the wind rose diagram of the wind farm, determining the secondary wind direction sector and the main wind direction sector of the wind turbine generator set where the first fatigue load exceeds a preset fatigue threshold;

[0008] A target unit is selected from the wind turbine units whose first fatigue load exceeds a preset fatigue threshold, and power control is performed on the secondary wind direction sector of the target unit according to a preset control rule.

[0009] Optionally, obtaining the first fatigue load of each wind turbine in the wind farm includes:

[0010] Based on the wind farm terrain data, wind turbine layout data, wind turbine operation data and wind farm meteorological data over the past period, a wind flow field model is established using CFD technology, and the first fatigue load of the wind turbine over the past period is determined using the wind flow field model.

[0011] Optionally, selecting a target wind turbine from wind turbines whose first fatigue load exceeds a preset fatigue threshold includes:

[0012] Based on the wind turbine arrangement data of the wind turbines, the wind turbines having a first fatigue load exceeding a preset fatigue threshold are divided into a first type of wind turbines and a second type of wind turbines, wherein the second type of wind turbines includes at least two wind turbines that are subject to mutual turbulence influence;

[0013] At least one wind turbine group among the second-category wind turbine groups and the first-category wind turbine groups are determined as the target wind turbine groups.

[0014] Optionally, determining at least one wind turbine generator set in the second category and the first category of wind turbine generator sets as the target turbine generator sets includes:

[0015] For each Category II wind turbine:

[0016] Taking the maximum theoretical power generation of the second-category wind turbine group and the fatigue load of each wind turbine group in the second-category wind turbine group meeting the preset fatigue threshold as the objective function, the wind turbine group that needs to be power controlled is determined from the second-category wind turbine groups as the target group.

[0017] Optionally, determining at least one wind turbine group among the second-category wind turbine groups and the first-category wind turbine group as the target turbine groups further includes:

[0018] For each Category II wind turbine:

[0019] When power control of the secondary wind direction sector of any wind turbine in the second category wind turbine can make the fatigue load of the second category wind turbine meet the preset fatigue threshold;

[0020] Obtaining the failure rate of wind turbines in the second category of wind turbines;

[0021] The wind turbines are sorted in descending order of failure rate, and the turbine with the highest failure rate is used as the target turbine.

[0022] Optionally, the method further includes:

[0023] After power control is performed on the secondary wind sector of the target unit:

[0024] re-obtaining a third fatigue load of the wind turbine generator set whose first fatigue load exceeds a preset fatigue threshold;

[0025] If the third fatigue load still exceeds the preset fatigue threshold, power control is performed on the main wind direction sector of the wind turbine generator set where the third fatigue load still exceeds the preset fatigue threshold according to a preset control rule.

[0026] Optionally, the preset control rules include:

[0027] If the wind direction corresponding to the target unit lasts in the preset sector for a first preset time, reducing the operating power of the wind turbine to a preset power value;

[0028] If the wind direction corresponding to the target unit continues in the non-preset sector for a second preset time period, the operating power of the wind turbine unit is increased to a preset operating power value.

[0029] A second aspect of the present invention provides a wind farm sector management and control device, the device comprising:

[0030] A parameter acquisition module, used to obtain the first fatigue load of each wind turbine in the wind farm;

[0031] A sector determination module is used to determine, based on the wind rose diagram of the wind farm, the secondary wind direction sector and the main wind direction sector of the wind turbine generator set whose first fatigue load exceeds a preset fatigue threshold;

[0032] The selection control module is used to select a target unit from the wind turbine units whose first fatigue load exceeds a preset fatigue threshold, and perform power control on the secondary wind direction sector of the target unit according to a preset control rule.

[0033] A third aspect of the present invention provides 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 above-mentioned wind farm sector management and control method when executing the computer program.

[0034] On the other hand, the present invention provides a machine-readable storage medium having instructions stored thereon, the instructions being used to enable a machine to execute the above-mentioned wind farm sector management and control method.

[0035] This technical solution achieves sector management and control of wind turbines by comprehensively considering the fatigue load factors of the units, the dynamic influencing factors between units, and the health factors of the units. It can further ensure the power generation of the wind farm, protect wind turbines with high failure rates, and reduce malfunctions in unit sector management.

[0036] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following detailed description, they are used to explain the embodiments of the present invention, but do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0038] Figure 1 is a flow chart of the wind farm sector management and control method provided by the present invention;

[0039] Figure 2 This is a flow chart of selecting a target unit provided by the present invention;

[0040] Figure 3 It is a structural diagram of the wind farm sector management and control device provided by the present invention.

[0041] Description of Reference Numerals

[0042] 10- parameter acquisition module; 20- sector determination module;

[0043] 30-Select the control module. DETAILED DESCRIPTION

[0044] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0045] Figure 1 is a flow chart of the wind farm sector management and control method provided by the present invention; Figure 2 This is a flow chart of selecting a target unit provided by the present invention; Figure 3 It is a structural diagram of the wind farm sector management and control device provided by the present invention.

[0046] like Figure 1 As shown, an embodiment of the present invention provides a wind farm sector management and control method, the method comprising:

[0047] Step 101: Obtain a first fatigue load of each wind turbine in the wind farm;

[0048] Step 102: Based on the wind rose diagram of the wind farm, determine the secondary wind direction sector and the main wind direction sector of the wind turbine generator set where the first fatigue load exceeds a preset fatigue threshold;

[0049] Step 103: Select a target wind turbine from the wind turbines whose first fatigue load exceeds a preset fatigue threshold, and perform power control on the secondary wind direction sector of the target wind turbine according to a preset control rule.

[0050] In step 102, a wind rose diagram is a statistical diagram of the frequency of each wind direction occurring in a certain area within a certain time period, or the average wind speed of each wind direction, plotted on a polar coordinate base map. In the wind rose diagram, the direction with the highest frequency indicates that the wind direction occurs the most frequently. The most common wind rose diagram is a circle with 16 radial lines drawn from it, representing 16 different directions. The length of each line is proportional to the frequency of wind in that direction. The frequency of calm wind is placed in the middle. Some wind rose diagrams also indicate the wind speed range for each wind direction. In this way, the secondary wind direction sector and the main wind direction sector of the wind turbine can be determined based on the frequency of wind direction occurrence. The main wind direction sector is the direction with the highest frequency of corresponding wind direction occurrence, and the secondary wind direction sector is the direction with the lowest frequency of corresponding wind direction occurrence. In step 103, the target unit can be selected based on the unit fatigue load factor, the dynamic influencing factor between units, and the unit health factor, and the target unit is selected from the wind turbine units whose first fatigue load exceeds a preset fatigue threshold.

[0051] In another embodiment, after 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 is still satisfied after a preset period of time, normal control of the wind turbine is restored to prevent the unit from frequently entering and exiting sector management and reduce malfunctions of the unit's sector management.

[0052] Furthermore, obtaining the first fatigue load of each wind turbine in the wind farm includes:

[0053] Based on wind farm terrain data, wind turbine layout data, wind turbine operation data and wind farm meteorological data over a period of time, a wind flow field model is established, and the first fatigue load of the wind turbine over a period of time is determined using the wind flow field model.

[0054] Specifically, a wind farm topography model can be established using wind farm topography data. Wind turbine locations can then be marked on the model. CFD technology can then be used to construct a wind flow model. Establishing a wind farm topography model is a technique well known to those skilled in the art and will not be further described here. Wind turbine operating data includes data such as the operating power of wind turbines at different times.

[0055] Furthermore, the wind flow field model is constructed based on CFD technology.

[0056] Specifically, CFD is the abbreviation of Computational Fluid Dynamics. CFD has developed along with the development of computer technology and numerical calculation technology. Simply put, CFD is equivalent to doing experiments "virtually" on a computer to simulate the actual fluid flow situation. Its basic principle is to numerically solve the differential equations that control fluid flow, and obtain the discrete distribution of the flow field of the fluid flow in a continuous area, thereby approximately simulating the fluid flow situation. CFD can be considered as a kind of modern simulation technology. In this embodiment, based on the wind farm terrain data, the position arrangement data of the wind turbine generator set, the wind turbine generator set operation data and the wind farm meteorological data over the past period of time, a wind flow field model can be constructed using CFD technology. It is used to simulate the operating status of the wind turbine generator set, so as to calculate the fatigue load of the wind turbine generator set.

[0057] Furthermore, if Figure 2 As shown, selecting a target wind turbine from wind turbines whose first fatigue load exceeds a preset fatigue threshold comprises:

[0058] Step 301: Based on wind turbine position arrangement data of the wind turbines, classify wind turbines having a first fatigue load exceeding a preset fatigue threshold into a first category of wind turbines and a second category of wind turbines, wherein the second category of wind turbines includes at least two wind turbines having mutual turbulence influences;

[0059] Step 302: Determine at least one wind turbine generator set in the second category and the first category wind turbine generator set as the target turbine generator sets.

[0060] Specifically, in this embodiment, the wind turbines whose first fatigue load exceeds the preset fatigue threshold are divided into first-category wind turbines and second-category wind turbines. The wind turbines of the second-category wind turbines are subject to mutual turbulence influence. Therefore, when performing sector control, for the first-category wind turbines (for example, the locations of the wind turbines are far away from the surrounding turbines and there is no mutual influence between the turbines), the reason why the fatigue load of the first-category wind turbine exceeds the preset fatigue threshold is usually only related to its own operating time, and the first-category wind turbine is directly determined as the target turbine. For the second type of wind turbines, taking the second type of wind turbines containing two wind turbines as an example, since the wind turbines in the second type of wind turbines have mutual influence, for example, due to the close spacing between some turbines, the operation of the front row of turbines causes large turbulence in the rear row of turbines, resulting in excessive load. Therefore, there are two situations, namely: only the secondary wind direction sector of any one of the two wind turbines needs to be controlled to make the fatigue load of the two wind turbines meet the preset fatigue threshold, and the secondary wind direction sector of both wind turbines must be controlled to make the fatigue load of the two wind turbines meet the preset fatigue threshold.

[0061] In this embodiment, the classification of the first type of wind turbine generator set and the second type of wind turbine generator set can be specifically carried out in the following manner:

[0062] Determining the mutual distance between the wind turbines; if the mutual distance between the wind turbines exceeds a preset distance threshold, determining the wind turbines as first-class wind turbines;

[0063] If the interval distance between wind turbines does not exceed the preset distance threshold, the turbulence of the adjacent turbines in the same wind direction segment is determined based on the wind direction of the wind farm and the turbine operation data (including the situations of operation and non-operation), that is, the turbulence of the downstream turbines in the wind direction segment is compared when the upstream turbines are shut down and when they are not shut down. If the turbulence change is greater than the preset turbulence threshold, it means that the mutual influence is large and the turbines are determined to be the second type.

[0064] The second type of wind turbine includes multiple groups of sub-wind turbines. The sub-wind turbines can be divided into regions according to their locations, and the wind turbines in the same region are determined to be the same sub-wind turbine. For each sub-wind turbine: the wind turbine with a failure rate exceeding a preset failure rate threshold in the same sub-wind turbine is determined as the target unit.

[0065] Further, determining at least one wind turbine generator set in the second category and the first category wind turbine generator set as the target turbine generator set includes:

[0066] For each Category II wind turbine:

[0067] Taking the maximum theoretical power generation of the second-category wind turbine group and the fatigue load of each wind turbine group in the second-category wind turbine group meeting the preset fatigue threshold as the objective function, the wind turbine group that needs to be power controlled is determined from the second-category wind turbine groups as the target group.

[0068] Furthermore, determining at least one wind turbine generator set in the second category and the first category wind turbine generator set as the target turbine generator set further includes:

[0069] For each Category II wind turbine:

[0070] When power control of the secondary wind direction sector of any wind turbine in the second category wind turbine can make the fatigue load of the second category wind turbine meet the preset fatigue threshold;

[0071] Obtaining the failure rate of wind turbines in the second category of wind turbines;

[0072] The wind turbines are sorted in descending order of failure rate, and the turbine with the highest failure rate is used as the target turbine.

[0073] Specifically, in this embodiment, an objective function is constructed with the maximum theoretical power generation of the second-category wind turbine group and the fatigue load of each wind turbine group in the second-category wind turbine group meeting a preset fatigue threshold, and a wind turbine group that needs to be power controlled is determined from the second-category wind turbine groups as the target group.

[0074] In this embodiment, taking a second-class wind turbine group containing only two wind turbines as an example, first, each unit in the second-class wind turbine group is selected in turn as a target unit for sector control, and the fatigue load of all wind turbines in the group is verified to see if it meets the preset threshold. After multiple cycles, the sector control strategy for the target unit that minimizes the sector power loss is found. Then, if there are significant differences in the sector intervals, management durations, and power loss of different target units while meeting the overall fatigue load index, the unit with the smallest power loss is selected as the target unit, and no further failure rate judgment is performed. However, under normal circumstances, there is no significant difference in the sector management method for selecting different target units for second-class wind turbines. That is, if the front and rear rows of units affect each other, multiple target units may be selected. That is, if any unit in the front and rear rows meets the conditions as the target unit, it is necessary to further compare the unit failure rates and sort the wind turbines in descending order of failure rate. The unit with the highest failure rate is the final target unit for the second-class wind turbine group.

[0075] By adopting the above method, the working hours of units with high failure rates can be reduced and units with high failure rates can be protected, that is, fatigue load control and unit failure rate control can be achieved, thereby increasing the service life of the units.

[0076] In another embodiment, after calculation through the above two situations, it is still impossible to make the fatigue load of each wind turbine meet the preset fatigue threshold. At this time, the objective function has no solution under the current situation, and the power of the main wind direction sector of the wind turbine in the second type of wind turbine is controlled according to the order of wind turbine failure rate from large to small.

[0077] Furthermore, the method further comprises:

[0078] After power control is performed on the secondary wind sector of the target unit:

[0079] re-obtaining a third fatigue load of the wind turbine generator set whose first fatigue load exceeds a preset fatigue threshold;

[0080] If the third fatigue load still exceeds the preset fatigue threshold, power control is performed on the main wind direction sector of the wind turbine generator set where the third fatigue load still exceeds the preset fatigue threshold according to a preset control rule.

[0081] Specifically, taking the first type of wind turbine as an example, power control is first performed on the secondary wind direction sector of the turbine, thereby reducing the total operating time (operating amount) of the wind turbine. After power control is performed on the secondary wind direction sector, the third fatigue load of the turbine under the current control strategy is calculated through the wind flow field model. If the third fatigue load of some turbines is still greater than the preset fatigue threshold, it means that the operating time (operating amount) of some turbines needs to be further controlled on the basis of the current control. Therefore, power control is performed on the main wind direction sector of the wind turbine whose third fatigue load still exceeds the preset fatigue threshold. In this way, the annual power generation of the wind farm can be guaranteed while reducing the fatigue load of the turbine.

[0082] Furthermore, the preset control rules include:

[0083] If the wind direction corresponding to the target unit lasts in the preset sector for a first preset time, reducing the operating power of the wind turbine to a preset power value;

[0084] If the wind direction corresponding to the target unit continues in the non-preset sector for a second preset time period, the operating power of the wind turbine unit is increased to a preset operating power value.

[0085] Specifically, the first preset time length and the second preset time length can both be set to 30 seconds, and the specific time length can be set according to the actual wind direction of the wind turbine; the preset power value can be to reduce the power to half of the current power of the wind turbine, or to directly reduce the power to 0, so as to shut down the turbine in the secondary wind direction sector; the preset operating power value is the initial operating power of the set wind turbine, which can be determined according to actual conditions; the determination of the preset sector can be determined according to the wind direction, wind force and the working status of the wind turbine. In this way, the sector management will not be entered until the wind direction of the preset sector has been maintained for a set 30 seconds, and the sector management will not be exited until the wind direction deviates from the preset sector for 30 seconds. This can prevent the turbine from frequently entering and exiting the sector management and reduce malfunctions of the turbine sector management.

[0086] In another embodiment, it can be understood that: this solution is to maximize the power generation of wind turbines in the wind farm while satisfying fatigue loads by repeatedly searching for the optimal sector control process.

[0087] like Figure 3 As shown, an embodiment of the present invention provides a wind farm sector management and control device, the device comprising:

[0088] The parameter acquisition module 10 is used to obtain the first fatigue load of each wind turbine in the wind farm;

[0089] The sector determination module 20 is used to determine the secondary wind direction sector and the main wind direction sector of the wind turbine generator set whose first fatigue load exceeds a preset fatigue threshold based on the wind rose diagram of the wind farm;

[0090] The selection control module 30 is configured to select a target wind turbine from the wind turbines whose first fatigue load exceeds a preset fatigue threshold, and perform power control on the secondary wind direction sector of the target wind turbine according to a preset control rule.

[0091] An embodiment of the present invention further provides 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 above-mentioned wind farm sector management and control method when executing the computer program.

[0092] An embodiment of the present invention further provides a machine-readable storage medium, on which instructions are stored, and the instructions are used to enable a machine to execute the above-mentioned wind farm sector management and control method.

[0093] Those skilled in the art will appreciate that all or part of the steps in the methods of the aforementioned embodiments can be accomplished by instructing the relevant hardware through a program, which is stored in a storage medium and includes a number of instructions for causing a single-chip microcomputer, chip, or processor to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0094] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0095] The above describes in detail the optional embodiments of the present invention in conjunction with the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above embodiments. Within the technical concept of the embodiments of the present invention, a variety of simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the scope of protection of the embodiments of the present invention. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner unless there is any contradiction. In order to avoid unnecessary repetition, the embodiments of the present invention will no longer describe the various possible combinations separately.

[0096] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the embodiments of the present invention, they should also be regarded as the contents disclosed in the embodiments of the present invention.

Claims

1. A wind farm sector management and control method, characterized in that: The method comprises: Obtaining a first fatigue load of each wind turbine in the wind farm; Based on the wind rose diagram of the wind farm, determining the secondary wind direction sector and the main wind direction sector of the wind turbine generator set where the first fatigue load exceeds a preset fatigue threshold; Selecting a target wind turbine from the wind turbines whose first fatigue load exceeds a preset fatigue threshold, and performing power control on the secondary wind direction sector of the target wind turbine according to a preset control rule; The step of selecting a target wind turbine from wind turbines whose first fatigue load exceeds a preset fatigue threshold comprises: Based on the wind turbine arrangement data of the wind turbines, the wind turbines having a first fatigue load exceeding a preset fatigue threshold are divided into a first type of wind turbines and a second type of wind turbines, wherein the second type of wind turbines includes at least two wind turbines that are subject to mutual turbulence influence; Determining at least one wind turbine generator set of the second type and the first type of wind turbine generator set as the target turbine generator set includes: For each Category II wind turbine: Taking the maximum theoretical power generation of the second-category wind turbine group and the fatigue load of each wind turbine group in the second-category wind turbine group satisfying a preset fatigue threshold as the objective function, determining the wind turbine group that needs to be power controlled from the second-category wind turbine groups as the target wind turbine group; For each Category II wind turbine: When power control of the secondary wind direction sector of any wind turbine in the second category wind turbine can make the fatigue load of the second category wind turbine meet the preset fatigue threshold; Obtaining the failure rate of wind turbines in the second category of wind turbines; Sorting the wind turbines in descending order of failure rate, and taking the turbine with the highest failure rate as the target turbine; The preset control rules include: If the wind direction corresponding to the target unit lasts in the preset sector for a first preset time, reducing the operating power of the wind turbine to a preset power value; If the wind direction corresponding to the target unit continues in the non-preset sector for a second preset time period, the operating power of the wind turbine unit is increased to a preset operating power value.

2. The method according to claim 1, characterized in that Obtain the first fatigue load of each wind turbine in the wind farm, including: Based on the wind farm terrain data, wind turbine layout data, wind turbine operation data and wind farm meteorological data over the past period, a wind flow field model is established using CFD technology, and the first fatigue load of the wind turbine over the past period is determined using the wind flow field model.

3. The method according to claim 1, characterized in that The method further comprises: After power control is performed on the secondary wind sector of the target unit: re-obtaining a third fatigue load of the wind turbine generator set whose first fatigue load exceeds a preset fatigue threshold; If the third fatigue load still exceeds the preset fatigue threshold, power control is performed on the main wind direction sector of the wind turbine generator set where the third fatigue load still exceeds the preset fatigue threshold according to a preset control rule.

4. A wind farm sector management and control device, characterized in that: The device comprises: A parameter acquisition module, used to obtain the first fatigue load of each wind turbine in the wind farm; A sector determination module is used to determine, based on the wind rose diagram of the wind farm, the secondary wind direction sector and the main wind direction sector of the wind turbine generator set whose first fatigue load exceeds a preset fatigue threshold; a selection control module, configured to select a target wind turbine from the wind turbines whose first fatigue load exceeds a preset fatigue threshold, and perform power control on a secondary wind direction sector of the target wind turbine according to a preset control rule; The step of selecting a target wind turbine from wind turbines whose first fatigue load exceeds a preset fatigue threshold comprises: Based on the wind turbine arrangement data of the wind turbines, the wind turbines having a first fatigue load exceeding a preset fatigue threshold are divided into a first type of wind turbines and a second type of wind turbines, wherein the second type of wind turbines includes at least two wind turbines that are subject to mutual turbulence influence; Determining at least one wind turbine generator set of the second type and the first type of wind turbine generator set as the target turbine generator set includes: For each Category II wind turbine: Taking the maximum theoretical power generation of the second-category wind turbine group and the fatigue load of each wind turbine group in the second-category wind turbine group satisfying a preset fatigue threshold as the objective function, determining the wind turbine group that needs to be power controlled from the second-category wind turbine groups as the target wind turbine group; For each Category II wind turbine: When power control of the secondary wind direction sector of any wind turbine in the second category wind turbine can make the fatigue load of the second category wind turbine meet the preset fatigue threshold; Obtaining the failure rate of wind turbines in the second category of wind turbines; Sorting the wind turbines in descending order of failure rate, and taking the turbine with the highest failure rate as the target turbine; The preset control rules include: If the wind direction corresponding to the target unit lasts in the preset sector for a first preset time, reducing the operating power of the wind turbine to a preset power value; If the wind direction corresponding to the target unit continues in the non-preset sector for a second preset time period, the operating power of the wind turbine unit is increased to a preset operating power value.

5. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the wind farm sector management and control method according to any one of claims 1 to 3 is implemented.

6. A machine-readable storage medium having instructions stored thereon, the instructions being used to enable a machine to execute the wind farm sector management and control method according to any one of claims 1 to 3.

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