Sector management method and device for wind turbine generator
By implementing reasonable sector management of wind turbine units, determining the location of wind turbines under special wind conditions, and implementing wind turbine feathering and shutdown procedures, the problem of wind turbines being unable to operate safely under special wind conditions has been solved, achieving safe operation and maximizing power generation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUANENG CLEAN ENERGY RES INST
- Filing Date
- 2024-09-09
- Publication Date
- 2026-04-28
AI Technical Summary
Existing sector management technology prevents wind turbines from operating safely under special wind conditions and reduces power generation.
By acquiring the wind condition parameters of each wind turbine in the wind farm, comparing them with the wind turbine's safety design value, determining the location of wind turbines in special wind conditions, implementing wind turbine feathering and shutdown procedures, and calculating and controlling power generation to ensure safe operation and maximize power generation.
This achieves the goal of maximizing power output while ensuring the safe operation of wind turbine units, thereby improving the operational safety of wind turbine units.
Smart Images

Figure CN118911921B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of sector management technology, and in particular to a sector management method and apparatus for wind turbine generators. Background Technology
[0002] Special wind conditions can cause localized and overall fatigue loads and ultimate loads on wind turbines to exceed their design values. This can lead to vibrations and torsional vibrations in critical components such as blades, hubs, nacelles, and towers. When these loads exceed the turbine's design load, they can cause damage to the turbine and other serious accidents. Sector management technology is primarily used when wind farm design phases reveal calculated wind conditions at certain turbine locations exceeding the turbine's safety design values, or when turbine vibrations and other safety hazards occur during wind farm operation. It involves shutting down turbines in specific wind direction (speed) segments to reduce the harm caused by special wind conditions in those segments and ensure safe turbine operation. Related technologies for sector management use methods such as turbulence intensity, wind shear index, and inflow angle to check if they exceed preset safety limits. However, improper sector management can lead to unsafe turbine operation and reduced power generation. Summary of the Invention
[0003] This application aims to at least partially address one of the technical problems in the related art.
[0004] Therefore, the first objective of this application is to propose a sector management method for wind turbines, which solves the technical problem that the wind turbines cannot operate safely due to unreasonable sector management in existing sector management technologies. By implementing reasonable sector management for wind turbines, the method provides high operational safety for wind turbines and maximizes power generation while ensuring safe operation of wind turbines.
[0005] The second objective of this application is to provide a sector management device for wind turbine units.
[0006] The third objective of this application is to propose a computer device.
[0007] The fourth objective of this application is to provide a non-transitory computer-readable storage medium.
[0008] To achieve the above objectives, the first aspect of this application proposes a sector management method for wind turbine units, comprising: acquiring wind condition parameters at each wind turbine in a wind farm; comparing the wind condition parameters at each wind turbine with the wind turbine's safety design value to determine the location of wind turbines under special wind conditions; limiting the power output of the wind turbine at the location under special wind conditions, implementing wind turbine feathering, and shutting down the turbine to reduce the extreme load on the wind turbine caused by the special wind conditions; calculating the power generation loss of the wind turbine during the shutdown period, and performing power control on the wind turbine based on the size of the wind direction segment during the shutdown period and the power generation loss of the wind turbine, so as to maximize power generation while ensuring the safe operation of the wind turbine unit.
[0009] Optionally, in one embodiment of this application, the wind condition parameters include at least average wind speed, maximum wind speed, extreme wind speed, wind direction, turbulence intensity, and inflow angle. Obtaining the wind condition parameters at each wind turbine in the wind farm includes:
[0010] Calculate the average wind speed, maximum wind speed, extreme wind speed, wind direction, turbulence intensity, and inflow angle at each wind turbine in the wind farm.
[0011] Optionally, in one embodiment of this application, the wind condition parameters at each wind turbine are compared with the wind turbine safety design values to determine the location of wind turbines in special wind conditions, including:
[0012] The turbulence intensity, inflow angle, and instantaneous wind speed at each fan were compared with the fan's safety design value. Fans with turbulence intensity, inflow angle, and instantaneous wind speed exceeding the fan's safety design value were identified as fans in special wind conditions, thus determining the location of fans in special wind conditions.
[0013] Optionally, in one embodiment of this application, after comparing the wind condition parameters at each wind turbine with the wind turbine safety design value to determine the location of the wind turbine in special wind conditions, the process includes:
[0014] By determining the wind direction distribution of wind turbines located under special wind conditions, wind rose diagrams and turbulence intensity distribution rose diagrams are obtained.
[0015] Optionally, in one embodiment of this application, after determining the wind direction distribution of the wind turbine under special wind conditions based on its location, and obtaining the wind rose diagram and turbulence intensity distribution rose diagram, the process includes:
[0016] Calculate the wind frequency distribution of the wind measurement tower and the wind turbine under special wind conditions, and list the turbulence intensity matrix for each wind speed and wind direction segment of the wind turbine under special wind conditions.
[0017] Optionally, in one embodiment of this application, after calculating the wind frequency distribution of the anemometer tower and the wind turbine under special wind conditions, and the turbulence intensity matrix list of each wind speed segment and each wind direction segment of the wind turbine under special wind conditions, the following steps are included:
[0018] The reasons for the special wind conditions at the location of the wind turbine under special wind conditions are analyzed. These reasons include the influence of the wake of the wind turbine upwind, the inducing effect of complex terrain on airflow under special wind conditions, and the wind conditions that occur under extreme weather conditions.
[0019] To achieve the above objectives, a second aspect of this application provides a sector management device for a wind turbine, comprising:
[0020] The acquisition module is used to acquire wind condition parameters at each wind turbine in the wind farm;
[0021] The comparison module is used to compare the wind condition parameters at each wind turbine with the wind turbine's safety design value in order to determine the location of wind turbines in special wind conditions;
[0022] The limiting module is used to limit the output of the wind turbine in the wind direction at the location of the wind turbine under special wind conditions, implement wind turbine feathering, and shut down the wind turbine to reduce the extreme load on the wind turbine under special wind conditions.
[0023] The control module is used to calculate the power generation loss of the wind turbine during the shutdown period, and to control the power of the wind turbine according to the size of the wind direction section and the power generation loss of the wind turbine during the shutdown period, so as to maximize the power generation while ensuring the safe operation of the wind turbine unit.
[0024] Optionally, in one embodiment of this application, the acquisition module is specifically used for:
[0025] Calculate the average wind speed, maximum wind speed, extreme wind speed, wind direction, turbulence intensity, and inflow angle at each wind turbine in the wind farm.
[0026] To achieve the above objectives, a third aspect of this application provides a computer device including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the sector management method for wind turbine units described in the above embodiment.
[0027] To achieve the above objectives, a fourth aspect of this application provides a non-transitory computer-readable storage medium that, when instructions in the storage medium are executed by a processor, can perform a sector management method for a wind turbine.
[0028] The wind turbine sector management method, apparatus, computer equipment, and non-transitory computer-readable storage medium of this application solve the technical problem that the wind turbine cannot operate safely due to unreasonable sector management in existing sector management technologies. By performing reasonable sector management of the wind turbine, the operation safety of the wind turbine is improved, and the power generation is maximized while ensuring the safe operation of the wind turbine.
[0029] Additional aspects and advantages of this 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 this application. Attached Figure Description
[0030] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:
[0031] Figure 1 A schematic flowchart illustrating a sector management method for a wind turbine provided in Embodiment 1 of this application;
[0032] Figure 2 This is a schematic diagram of the structure of a sector management device for a wind turbine provided in Embodiment 2 of this application. Detailed Implementation
[0033] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.
[0034] Specifically, sector management technology involves implementing feathering and shutdown operations on wind turbines during specific time periods, wind directions, and wind speed ranges. This reduces the damage caused by special wind conditions in a particular wind direction to the turbines, lowers the turbine load, and ensures safe operation of the turbines at the cost of reduced power generation. Special wind conditions include exceptional circumstances such as extremely high wind speeds, turbulence intensity, and turbine inflow angles exceeding design values.
[0035] The following description, with reference to the accompanying drawings, describes a sector management method and apparatus for wind turbine generators according to embodiments of this application.
[0036] Figure 1 This is a flowchart illustrating a sector management method for a wind turbine provided in Embodiment 1 of this application.
[0037] like Figure 1 As shown, the sector management method for this wind turbine includes the following steps:
[0038] Step 101: Obtain wind condition parameters at each wind turbine in the wind farm;
[0039] Step 102: Compare the wind condition parameters at each wind turbine with the wind turbine safety design value to determine the location of wind turbines in special wind conditions;
[0040] Step 103: Limit the output of the wind turbine in the wind direction at the location of the wind turbine under special wind conditions, implement wind turbine feathering, and shut down the wind turbine to reduce the extreme load on the wind turbine under special wind conditions.
[0041] Step 104: Calculate the power generation loss of the wind turbine during the shutdown period, and control the power of the wind turbine according to the size of the wind direction section and the power generation loss of the wind turbine during the shutdown period, so as to maximize the power generation while ensuring the safe operation of the wind turbine unit.
[0042] The wind turbine sector management method of this application embodiment acquires wind condition parameters at each wind turbine in the wind farm; compares the wind condition parameters at each wind turbine with the wind turbine's safety design value to determine the location of wind turbines in special wind conditions; restricts the power output of the wind turbine at the location in special wind conditions by implementing wind feathering and shutting down the turbine to reduce the extreme load on the wind turbine caused by special wind conditions; calculates the power generation loss of the wind turbine during the shutdown period, and performs power control on the wind turbine based on the size of the wind direction segment during the shutdown and the power generation loss of the wind turbine, so as to maximize power generation while ensuring the safe operation of the wind turbine. Therefore, it can solve the technical problem of wind turbines not operating safely due to unreasonable sector management in existing sector management technologies. By implementing reasonable sector management of wind turbines, it provides high operational safety for wind turbines and maximizes power generation while ensuring safe operation of the wind turbine.
[0043] Furthermore, in this embodiment of the application, the wind condition parameters include at least average wind speed, maximum wind speed, extreme wind speed, wind direction, turbulence intensity, and inflow angle. Obtaining the wind condition parameters at each wind turbine in the wind farm includes:
[0044] Calculate the average wind speed, maximum wind speed, extreme wind speed, wind direction, turbulence intensity, and inflow angle at each wind turbine in the wind farm.
[0045] In this embodiment, the wind conditions parameters for safe operation of the wind turbine mainly include average wind speed, maximum wind speed, extreme wind speed, wind direction, turbulence intensity, and inflow angle. These wind conditions parameters are compared with the wind turbine design standards IEC61400-1-2005 (1999) or GL-2010. When the wind conditions parameters for a certain turbine location exceed the design standards during design and operation, extra attention should be paid, and the design scheme should be optimized to avoid unit vibration and other malfunctions during operation. IEC61400-1-2005 defines turbulence intensity as follows:
[0046]
[0047] Turbulence in wind farms has an adverse effect on the performance of wind turbines, primarily reducing output power and potentially causing extreme loads, ultimately weakening and damaging the wind turbines. Turbulence intensity I T A value of 0.10 or less indicates relatively low turbulence; I0 represents moderate turbulence. T The value is 0.10 to 0.25, I T A value greater than 0.25 indicates excessive turbulence. For wind farms, a turbulence intensity I is required. T The value does not exceed 0.25.
[0048] The effective turbulence intensity experienced by wind turbines in a wind farm consists of two parts: the environmental turbulence intensity and the turbulence intensity generated by the wake of the wind turbine. According to the design requirements of IEC61400-1, the effective turbulence intensity experienced by the wind turbine in each wind speed range must not exceed the design turbulence intensity.
[0049] Furthermore, in this embodiment of the application, the wind condition parameters at each wind turbine are compared with the wind turbine safety design values to determine the location of wind turbines in special wind conditions, including:
[0050] The turbulence intensity, inflow angle, and instantaneous wind speed at each fan were compared with the fan's safety design value. Fans with turbulence intensity, inflow angle, and instantaneous wind speed exceeding the fan's safety design value were identified as fans in special wind conditions, thus determining the location of fans in special wind conditions.
[0051] Furthermore, in this embodiment of the application, after comparing the wind condition parameters at each wind turbine with the wind turbine safety design value to determine the location of the wind turbine in special wind conditions, the process includes:
[0052] By determining the wind direction distribution of wind turbines located under special wind conditions, wind rose diagrams and turbulence intensity distribution rose diagrams are obtained.
[0053] Furthermore, in this embodiment of the application, after determining the wind direction distribution of the wind turbine under special wind conditions based on its location, and obtaining the wind rose diagram and turbulence intensity distribution rose diagram, the process includes:
[0054] Calculate the wind frequency distribution of the wind measurement tower and the wind turbine under special wind conditions, and list the turbulence intensity matrix for each wind speed and wind direction segment of the wind turbine under special wind conditions.
[0055] Furthermore, in the embodiments of this application, after calculating the wind frequency distribution of the wind measuring tower and the wind turbine under special wind conditions, and the turbulence intensity matrix list of each wind speed segment and each wind direction segment of the wind turbine under special wind conditions, the following steps are included:
[0056] The reasons for the special wind conditions at the location of the wind turbine under special wind conditions are analyzed. These reasons include the influence of the wake of the wind turbine upwind, the inducing effect of complex terrain on airflow under special wind conditions, and the wind conditions that occur under extreme weather conditions.
[0057] In this embodiment of the application, when special wind conditions such as excessive turbulence intensity at the turbine location, excessive inflow angle of the fan, or excessive instantaneous wind speed exceeding the design value are found during the design phase, or when abnormal conditions such as unit vibration are found during fan operation, the approach of sector management application is as follows. ① Identify the wind directions in which these extreme wind conditions occur and derive wind rose diagrams and turbulence intensity distribution rose diagrams; ② Calculate the wind frequency distribution of the wind measuring tower and the turbine location, as well as the turbulence intensity matrix list for each wind speed segment and each wind direction segment at the turbine location; ③ Analyze the reasons for the extreme wind conditions at the turbine location, whether it is due to the influence of the wake of the upwind turbine location, the induction effect of complex terrain on airflow under special wind directions, or wind conditions occurring under extreme weather conditions; ④ Limit the power output of the turbine location in the wind direction when extreme wind conditions occur, implement turbine feathering, and shut down the turbine to reduce the extreme load on the turbine caused by extreme wind conditions; ⑤ Calculate the power generation loss of the turbine during the shutdown period in this wind direction segment; ⑥ Reasonably balance the contradiction between the size of the shutdown wind direction segment (wind speed segment) and the change in power generation, and maximize power generation while ensuring the safe operation of the wind turbine unit.
[0058] In this embodiment of the application, based on experience, the power generation loss of the wind turbine is controlled to be below 15%, the number of control sectors is limited to less than 2, the angle of the control sector is below 30°, and the control sector should avoid the main wind direction of the turbine location as much as possible.
[0059] Figure 2 This is a schematic diagram of the structure of a sector management device for a wind turbine provided in Embodiment 2 of this application.
[0060] like Figure 2 As shown, the sector management device of the wind turbine includes:
[0061] Module 10 is used to acquire wind condition parameters at each wind turbine in the wind farm;
[0062] The comparison module 20 is used to compare the wind condition parameters at each wind turbine with the wind turbine safety design value in order to determine the location of the wind turbine in special wind conditions;
[0063] The limiting module 30 is used to limit the output of the wind turbine in the wind direction at the location of the wind turbine under special wind conditions, implement wind turbine feathering, and shut down the wind turbine to reduce the extreme load on the wind turbine under special wind conditions.
[0064] The control module 40 is used to calculate the power generation loss of the wind turbine during the shutdown period, and to control the power of the wind turbine according to the size of the wind direction section and the power generation loss of the wind turbine during the shutdown period, so as to maximize the power generation while ensuring the safe operation of the wind turbine unit.
[0065] The sector management device for wind turbines in this application includes an acquisition module for acquiring wind condition parameters at each wind turbine in the wind farm; a comparison module for comparing the wind condition parameters at each wind turbine with the wind turbine's safety design value to determine the location of wind turbines in special wind conditions; a restriction module for restricting the output of wind turbines in special wind conditions, implementing wind turbine feathering, and shutting down the turbines to reduce the extreme loads on the wind turbines caused by special wind conditions; and a control module for calculating the power generation loss of the wind turbines during shutdown and controlling the power of the wind turbines based on the size of the wind direction segment and the power generation loss during shutdown, so as to maximize power generation while ensuring the safe operation of the wind turbine. Therefore, this device solves the technical problem of wind turbines not operating safely due to unreasonable sector management in existing sector management technologies. By implementing reasonable sector management of wind turbines, it provides high operational safety for wind turbines and maximizes power generation while ensuring safe operation.
[0066] Furthermore, in this embodiment of the application, the acquisition module is specifically used for:
[0067] Calculate the average wind speed, maximum wind speed, extreme wind speed, wind direction, turbulence intensity, and inflow angle at each wind turbine in the wind farm.
[0068] To implement the above embodiments, this application also proposes a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the sector management method for wind turbines described in the above embodiments.
[0069] To implement the above embodiments, this application also proposes a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the sector management method for wind turbine units described above.
[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0071] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0072] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.
[0073] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.
[0074] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.
[0075] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.
[0076] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.
[0077] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.
Claims
1. A sector management method for wind turbine generators, characterized in that, Includes the following steps: Obtain wind condition parameters at each wind turbine in the wind farm; The wind condition parameters at each wind turbine are compared with the wind turbine safety design values to determine the location of wind turbines in special wind conditions; Limit the output of the wind turbine in the wind direction at the location of the wind turbine in special wind conditions, implement wind turbine feathering, and shut down the wind turbine to reduce the extreme load on the wind turbine caused by special wind conditions; Calculate the power generation loss of the wind turbine during the shutdown period, and control the power of the wind turbine according to the size of the wind direction section during the shutdown period and the power generation loss of the wind turbine, so as to maximize the power generation while ensuring the safe operation of the wind turbine unit; The wind condition parameters include at least average wind speed, maximum wind speed, extreme wind speed, wind direction, turbulence intensity, and inflow angle. Obtaining the wind condition parameters at each wind turbine in the wind farm includes: Calculate the average wind speed, maximum wind speed, extreme wind speed, wind direction, turbulence intensity, and inflow angle at each wind turbine in the wind farm; The step of comparing the wind condition parameters at each wind turbine with the wind turbine safety design value to determine the location of the wind turbine in special wind conditions includes: The turbulence intensity, inflow angle, and instantaneous wind speed at each fan are compared with the fan's safety design value. Fans whose turbulence intensity, inflow angle, and instantaneous wind speed exceed the fan's safety design value are identified as fans in special wind conditions, thus determining the location of fans in special wind conditions. After comparing the wind condition parameters at each wind turbine with the wind turbine safety design values to determine the location of wind turbines in special wind conditions, the process includes: By determining the wind direction distribution of the wind turbines under special wind conditions based on their locations, wind rose diagrams and turbulence intensity distribution rose diagrams are obtained. After determining the wind direction distribution of the wind turbine under special wind conditions based on its location, and obtaining the wind rose diagram and turbulence intensity distribution rose diagram, the process includes: Calculate the wind frequency distribution of the wind measuring tower and the wind turbine under special wind conditions, and list the turbulence intensity matrix of each wind speed segment and each wind direction segment of the wind turbine under special wind conditions; After calculating the wind frequency distribution of the wind measuring tower and the wind turbine under special wind conditions, and the turbulence intensity matrix list for each wind speed and direction segment of the wind turbine under special wind conditions, the following is included: The reasons for the occurrence of special wind conditions at the location of wind turbines in special wind conditions are analyzed. These reasons include the influence of the wake of the wind turbine upwind, the inducing effect of complex terrain on airflow under special wind conditions, and wind conditions that occur under extreme weather conditions.
2. A sector management device for a wind turbine generator, characterized in that, include: The acquisition module is used to acquire wind condition parameters at each wind turbine in the wind farm; The comparison module is used to compare the wind condition parameters at each wind turbine with the wind turbine safety design value in order to determine the location of the wind turbine in special wind conditions; The limiting module is used to limit the output of the wind turbine in the wind direction at the location of the wind turbine under special wind conditions, implement wind turbine feathering, and shut down the wind turbine to reduce the extreme load on the wind turbine under special wind conditions. The control module is used to calculate the power generation loss of the wind turbine during the shutdown period, and to control the power of the wind turbine according to the size of the wind direction section during the shutdown period and the power generation loss of the wind turbine, so as to maximize the power generation while ensuring the safe operation of the wind turbine unit. The wind condition parameters include at least average wind speed, maximum wind speed, extreme wind speed, wind direction, turbulence intensity, and inflow angle. Obtaining the wind condition parameters at each wind turbine in the wind farm includes: Calculate the average wind speed, maximum wind speed, extreme wind speed, wind direction, turbulence intensity, and inflow angle at each wind turbine in the wind farm; The step of comparing the wind condition parameters at each wind turbine with the wind turbine safety design value to determine the location of the wind turbine in special wind conditions includes: The turbulence intensity, inflow angle, and instantaneous wind speed at each fan are compared with the fan's safety design value. Fans whose turbulence intensity, inflow angle, and instantaneous wind speed exceed the fan's safety design value are identified as fans in special wind conditions, thus determining the location of fans in special wind conditions. After comparing the wind condition parameters at each wind turbine with the wind turbine safety design values to determine the location of wind turbines in special wind conditions, the process includes: By determining the wind direction distribution of the wind turbines under special wind conditions based on their locations, wind rose diagrams and turbulence intensity distribution rose diagrams are obtained. After determining the wind direction distribution of the wind turbine under special wind conditions based on its location, and obtaining the wind rose diagram and turbulence intensity distribution rose diagram, the process includes: Calculate the wind frequency distribution of the wind measuring tower and the wind turbine under special wind conditions, and list the turbulence intensity matrix of each wind speed segment and each wind direction segment of the wind turbine under special wind conditions; After calculating the wind frequency distribution of the wind measuring tower and the wind turbine under special wind conditions, and the turbulence intensity matrix list for each wind speed and direction segment of the wind turbine under special wind conditions, the following is included: The reasons for the occurrence of special wind conditions at the location of wind turbines in special wind conditions are analyzed. These reasons include the influence of the wake of the wind turbine upwind, the inducing effect of complex terrain on airflow under special wind conditions, and wind conditions that occur under extreme weather conditions.
3. A computer device, characterized in that, The method includes 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, it implements the method as described in claim 1.
4. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method as described in claim 1.
Citation Information
Patent Citations
Sector division method and system for wind turbine generator
CN107038264A
Double-wind-wheel wind turbine variable pitch control method based on fuzzy prediction and sector management
CN113653596A
Wind power plant sector management control method and device
CN116187218A