Determination method and device of yaw bearing, storage medium and electronic equipment

Abstract

The embodiment of the invention provides a yaw bearing determining method and device, a storage medium and electronic device.The method comprises the steps that wind wheel thrust is determined according to the rated wind speed of a double-wind-wheel wind turbine generator, and a front wind wheel and a rear wind wheel of the double-wind-wheel wind turbine generator are in a Y shape; determining a wind wheel bending moment of the wind turbine generator according to the wind wheel thrust and the wind wheel force arm; according to the wind wheel bending moment, the corresponding target yaw bearing is determined, and by means of the yaw bearing selection method and device, the problem that in the related technology, the accuracy of the selected yaw bearing is low is solved.

Description

Technical Field

[0001] The present application relates to the field of wind power, and in particular, to a method and device for determining a yaw bearing, a storage medium, and an electronic device. Background Art

[0002] In the design and operation of wind turbines, the yaw system plays a vital role. It is responsible for adjusting the direction of the wind rotor according to the change of wind direction to ensure that the wind rotor can always face the wind direction, thereby maximizing the capture and conversion efficiency of wind energy. The yaw bearing is the core component of the yaw system. Its load-bearing capacity and rotation accuracy directly affect the overall performance and reliability of the wind turbine.

[0003] In the prior art, when designing a wind turbine, the designer usually determines the yaw bearing based on experience. If the yaw bearing is not properly selected, the yaw bearing may be subjected to loads exceeding the design expectations during actual operation, resulting in problems such as premature wear, structural damage or inflexible rotation.

[0004] With respect to the problem of low accuracy of the selected yaw bearing in the prior art, no effective solution has been proposed yet.

[0005] Therefore, it is necessary to improve the related technology to overcome the above-mentioned defects in the related technology. Summary of the invention

[0006] The embodiments of the present application provide a method and device for determining a yaw bearing, a storage medium, and an electronic device, so as to at least solve the problem of low accuracy in selecting a yaw bearing in the prior art.

[0007] According to one embodiment of the present application, a method for determining a yaw bearing is provided, comprising: determining a rotor thrust according to a rated wind speed of a dual-rotor wind turbine set, wherein a front rotor and a rear rotor of the dual-rotor wind turbine set are in a Y shape; determining a rotor bending moment of the wind turbine set according to the rotor thrust and a rotor lever arm; and determining a corresponding target yaw bearing according to the rotor bending moment.

[0008] In an exemplary embodiment, determining a corresponding target yaw bearing according to the wind rotor bending moment comprises: querying a bearing table, wherein the bearing table comprises: an inner diameter, an outer diameter and a loadable bending moment of each bearing; determining a first bearing set in the bearing table according to the wind rotor bending moment, wherein a loadable bending moment of any bearing in the first bearing set is greater than or equal to the wind rotor bending moment; determining size information of a frame of the dual-rotor wind turbine set, and determining the target yaw bearing in the first bearing set according to the size information.

[0009] In an exemplary embodiment, determining the target yaw bearing in the first bearing set according to the size information includes: determining a second bearing set in the first bearing set according to a mounting hole diameter of the frame and an inner diameter of each bearing in the first bearing set; and determining the target yaw bearing in the second bearing set according to an inner diameter of a bearing seat of the frame and an outer diameter of each bearing in the second bearing set.

[0010] In an exemplary embodiment, the rotor thrust is determined according to the rated wind speed of the twin-rotor wind turbine, including: determining the first rotor thrust of the front rotor according to the rated wind speed and a first coefficient of the twin-rotor wind turbine; determining the second rotor thrust of the rear rotor according to the rated wind speed and a second coefficient of the twin-rotor wind turbine; and determining the rotor thrust according to the sum of the first rotor thrust and the second rotor thrust.

[0011] In an exemplary embodiment, the first wind rotor thrust of the front wind rotor is determined according to the rated wind speed and the first coefficient of the dual-rotor wind turbine set, including: determining the first wind rotor thrust F1 according to the following formula: F1=f(A1*0.5*ρ*V^3*πR1^2*Cp), wherein A1 is the first coefficient, ρ is the air density, V is the rated wind speed, R1 is the front wind rotor radius, and Cp is the dual wind rotor efficiency.

[0012] According to another embodiment of the present application, a device for determining a yaw bearing is provided, comprising: a first determination module, used to determine the rotor thrust according to the rated wind speed of a dual-rotor wind turbine set, wherein the front rotor and the rear rotor of the dual-rotor wind turbine set are in a Y shape; a second determination module, used to determine the rotor bending moment of the wind turbine set according to the rotor thrust and the rotor lever arm; and a third determination module, used to determine the corresponding target yaw bearing according to the rotor bending moment.

[0013] According to another embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when run.

[0014] According to another embodiment of the present application, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0015] According to another embodiment of the present application, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0016] Through this application, the rotor thrust is determined according to the rated wind speed of the dual-rotor wind turbine, wherein the front rotor and the rear rotor of the dual-rotor wind turbine are in a Y shape; the rotor bending moment of the wind turbine is determined according to the rotor thrust and the rotor lever arm; the corresponding target yaw bearing is determined according to the rotor bending moment. In the embodiment of this application, the load requirement of the yaw bearing can be evaluated more accurately, so as to select the most suitable yaw bearing, ensure that the wind turbine can still operate stably and efficiently under complex wind conditions, and at the same time extend the service life of the bearing, reduce maintenance costs, and improve the overall economic benefits of the wind farm. Therefore, the problem of low accuracy of the selected yaw bearing can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 It is a hardware structure block diagram of a computer device of a method for determining a yaw bearing in an embodiment of the present application;

[0020] Figure 2 is a flow chart of a method for determining a yaw bearing according to an embodiment of the present application;

[0021] Figure 3 is a schematic diagram of a wind turbine according to an embodiment of the present application;

[0022] Figure 4 It is a structural block diagram of a device for determining a yaw bearing according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0025] The method embodiments provided in the embodiments of the present application can be executed in a computer device or a similar computing device. Taking running on a computer device as an example, Figure 1 1 is a hardware structure block diagram of a computer device for a method for determining a yaw bearing according to an embodiment of the present application. Figure 1 As shown, the computer device may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the above-mentioned computer device may also include a transmission device 106 and an input and output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above-mentioned computer device. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0026] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the method for determining the yaw bearing in the embodiment of the present application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0027] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the computer device. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0028] In this embodiment, a method for determining a yaw bearing is provided, which is applied to the above-mentioned computer device. Figure 2 is a flow chart of a method for determining a yaw bearing according to an embodiment of the present application, such as Figure 2 As shown, the process includes the following steps:

[0029] Step S202, determining the wind rotor thrust according to the rated wind speed of the twin-rotor wind turbine set, wherein the front wind rotor and the rear wind rotor of the twin-rotor wind turbine set are in a Y shape;

[0030] The rated wind speed may be determined based on the average wind speed of the wind turbine generator system.

[0031] The double-wind-wheel wind turbine in the embodiment of the present application is as follows Figure 3 As shown, Figure 3 The red part in the figure is the position of the target yaw bearing.

[0032] Figure 3 R2 is the radius of the rear wind rotor; R1 is the radius of the front wind rotor; L is the distance between the two wind rotors; F1 is the thrust of the first wind rotor; M is the bending moment of the wind rotor; H is the wind rotor lever arm, and the incoming wind speed can be understood as the rated wind speed in this application.

[0033] Step S204, determining the rotor bending moment of the wind turbine generator set according to the rotor thrust and the rotor lever arm;

[0034] After determining the rotor thrust, the rotor bending moment (M) is further calculated. The bending moment is the product of the rotor thrust and the arm (H) from the center of the rotor to the center of the yaw bearing, that is, M = F*H. In the Y-shaped layout, the arm of the front and rear rotors can be the same or different, so the length of the arm needs to be determined according to the specific structural design.

[0035] Step S206: determining a corresponding target yaw bearing according to the wind rotor bending moment.

[0036] The target load capacity is the minimum load capacity that the yaw bearing needs to achieve during design.

[0037] According to the rotor bending moment M, through mechanical analysis and engineering calculation, the target bearing capacity required by the yaw bearing when the Y-shaped twin-rotor wind turbine is in operation can be determined. Finally, the most suitable yaw bearing is selected based on the calculated target bearing capacity.

[0038] Through the above steps, the rotor thrust is determined according to the rated wind speed of the dual-rotor wind turbine, wherein the front rotor and the rear rotor of the dual-rotor wind turbine are in a Y shape; the rotor bending moment of the wind turbine is determined according to the rotor thrust and the rotor lever arm; the corresponding target yaw bearing is determined according to the rotor bending moment. In the embodiment of the present application, the load requirement of the yaw bearing can be evaluated more accurately, so as to select the most suitable yaw bearing, ensure that the wind turbine can still operate stably and efficiently under complex wind conditions, and at the same time extend the service life of the bearing, reduce maintenance costs, and improve the overall economic benefits of the wind farm. Therefore, the problem of low accuracy of the selected yaw bearing can be solved.

[0039] In an exemplary embodiment, determining a corresponding target yaw bearing according to the wind rotor bending moment comprises: querying a bearing table, wherein the bearing table comprises: an inner diameter, an outer diameter and a loadable bending moment of each bearing; determining a first bearing set in the bearing table according to the wind rotor bending moment, wherein a loadable bending moment of any bearing in the first bearing set is greater than or equal to the wind rotor bending moment; determining size information of a frame of the dual-rotor wind turbine set, and determining the target yaw bearing in the first bearing set according to the size information.

[0040] The bearing table usually lists the specific parameters of each bearing, such as the inner diameter, outer diameter, and the bending moment that can be carried. Based on the calculated bending moment of the wind rotor, all bearings that can withstand these bending moments are selected from the bearing table. That is, the bending moment of any bearing must be greater than or equal to the bending moment of the wind rotor to ensure that the selected bearing can still work safely and stably when bearing the maximum load generated by the wind rotor.

[0041] After screening, a first set of bearings that meet the bending moment requirements is formed. This set provides a basis for subsequent size matching, and the bearings in it can meet the needs of the dual-rotor wind turbine in terms of mechanical properties.

[0042] After initially selecting a bearing set that meets the load-bearing requirements, the next step is to determine the frame size of the twin-rotor wind turbine, including but not limited to key dimensions such as the frame inner diameter, outer diameter, and thickness.

[0043] Based on the size information of the frame, the first bearing set is further screened to select bearings that are compatible with the frame design in terms of size, including but not limited to comparing the inner diameter and outer diameter of the bearing with the frame opening size, to ensure that the selected bearing can be installed on the frame without hindrance, and to ensure effective support and tight fit between the bearing and the frame.

[0044] After two rounds of screening, the yaw bearing that meets both the bending moment requirements and the frame size design is finally determined from the first bearing set as the target yaw bearing.

[0045] Through the embodiments of the present application, it is possible to more accurately match the requirements between the bearing performance and the actual working conditions of the wind power system, ensuring that the bearing can adapt to specific physical space limitations while bearing dynamic loads, thereby improving the design level of the entire wind turbine and enhancing its market competitiveness. By accurately controlling the selection of bearings, not only the reliability and service life of the wind turbine are improved, but also its operating costs are optimized, providing solid technical support for the sustainable development of the wind power industry.

[0046] In an exemplary embodiment, determining the target yaw bearing in the first bearing set according to the size information includes: determining a second bearing set in the first bearing set according to a mounting hole diameter of the frame and an inner diameter of each bearing in the first bearing set; and determining the target yaw bearing in the second bearing set according to an inner diameter of a bearing seat of the frame and an outer diameter of each bearing in the second bearing set.

[0047] Obtain the mounting hole diameter of the frame from the wind turbine design drawing or specification. The mounting hole diameter is the diameter reserved for the inner ring of the bearing, ensuring that the inner ring of the bearing can pass smoothly and be installed in the specified position of the frame.

[0048] In the first set of bearings obtained through preliminary screening, the inner diameter of each bearing is compared with the diameter of the frame mounting hole one by one. This process requires that the inner diameter of the bearing matches the diameter of the frame mounting hole, that is, the inner diameter of the bearing needs to be slightly larger than the diameter of the mounting hole to ensure that the inner ring of the bearing can be installed smoothly and form an appropriate interference fit to ensure the stability and tightness of the bearing during operation.

[0049] After fine matching of the inner diameter size, all bearings with inner diameter sizes that meet the requirements are selected from the first bearing set to form the second bearing set. This set further narrows the range of target yaw bearings, and all bearings are guaranteed to be physically compatible with the frame on the basis of qualified load-bearing capacity.

[0050] Continue to obtain the inner diameter of the bearing seat from the design information of the wind turbine. The bearing seat is a component used to carry and fix the bearing, and its inner diameter directly determines the maximum outer diameter of the bearing that can be installed.

[0051] In the second bearing set, bearings whose outer diameter matches the inner diameter of the bearing seat are further selected. This matching requires that the outer diameter of the bearing is slightly smaller than or equal to the inner diameter of the bearing seat to ensure that the bearing can be firmly installed in the bearing seat, and at the same time ensure that the necessary radial interference fit is formed between the bearing and the bearing seat to prevent radial displacement during operation.

[0052] After precise matching of the outer diameter dimensions, one or more bearings are finally determined from the second bearing set as the target yaw bearing. The target yaw bearing not only meets the target load-bearing requirements in terms of mechanical properties, but also adapts to the frame and bearing seat design of the wind turbine in terms of physical dimensions, ensuring the practical feasibility of the bearing during installation, operation and maintenance.

[0053] In an exemplary embodiment, the rotor thrust is determined according to the rated wind speed of the twin-rotor wind turbine, including: determining the first rotor thrust of the front rotor according to the rated wind speed and a first coefficient of the twin-rotor wind turbine; determining the second rotor thrust of the rear rotor according to the rated wind speed and a second coefficient of the twin-rotor wind turbine; and determining the rotor thrust according to the sum of the first rotor thrust and the second rotor thrust.

[0054] The first coefficient is based on the wind turbine design and the front wind rotor characteristics (such as wind rotor diameter, blade shape, etc.), and is used to adjust the correction coefficient of the theoretical wind rotor thrust calculation result to more accurately reflect the thrust value under actual working conditions.

[0055] The second coefficient is based on the wind turbine design and the characteristics of the rear wind rotor (such as wind rotor diameter, blade shape, etc.). However, considering that the rear wind rotor may be affected by the wake of the front wind rotor in the Y-shaped layout, the second coefficient is usually different from the first coefficient to more accurately reflect the actual thrust of the rear wind rotor.

[0056] It should be noted that, when the front wind rotor and rear wind rotor moment arms are different, it is necessary to determine the second bending moment based on the second wind rotor thrust and the rear wind rotor moment arm, and to determine the first bending moment based on the first wind rotor thrust and the front wind rotor moment arm.

[0057] In an exemplary embodiment, the first wind rotor thrust of the front wind rotor is determined according to the rated wind speed and the first coefficient of the dual-rotor wind turbine set, including: determining the first wind rotor thrust F1 according to the following formula: F1=f(A1*0.5*ρ*V^3*πR1^2*Cp), wherein A1 is the first coefficient, ρ is the air density, V is the rated wind speed, R1 is the front wind rotor radius, and Cp is the dual wind rotor efficiency.

[0058] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0059] In this embodiment, a device for determining a yaw bearing is also provided, and the device is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0060] Figure 4 is a structural block diagram of a device for determining a yaw bearing according to an embodiment of the present application, such as Figure 4 As shown, the device comprises:

[0061] A first determination module 42 is used to determine the wind rotor thrust according to the rated wind speed of the twin-rotor wind turbine set, wherein the front wind rotor and the rear wind rotor of the twin-rotor wind turbine set are in a Y shape;

[0062] A second determination module 44 is used to determine the rotor bending moment of the wind turbine according to the rotor thrust and the rotor lever arm;

[0063] The third determination module 46 is configured to determine a corresponding target yaw bearing according to the wind rotor bending moment.

[0064] Through the above device, the rotor thrust is determined according to the rated wind speed of the dual-rotor wind turbine, wherein the front rotor and the rear rotor of the dual-rotor wind turbine are in a Y shape; the rotor bending moment of the wind turbine is determined according to the rotor thrust and the rotor lever arm; the corresponding target yaw bearing is determined according to the rotor bending moment. In the embodiment of the present application, the load requirement of the yaw bearing can be evaluated more accurately, so as to select the most suitable yaw bearing, ensure that the wind turbine can still operate stably and efficiently under complex wind conditions, and at the same time extend the service life of the bearing, reduce maintenance costs, and improve the overall economic benefits of the wind farm. Therefore, the problem of low accuracy of the selected yaw bearing can be solved.

[0065] In an exemplary embodiment, the third determination module 46 is used to query a bearing table, wherein the bearing table includes: the inner diameter, outer diameter and loadable bending moment of each bearing; determine a first bearing set in the bearing table according to the wind rotor bending moment, wherein the loadable bending moment of any bearing in the first bearing set is greater than or equal to the wind rotor bending moment; determine the size information of the frame of the dual-rotor wind turbine set, and determine the target yaw bearing in the first bearing set according to the size information.

[0066] In an exemplary embodiment, the third determination module 46 is used to determine the second bearing set in the first bearing set based on the mounting hole diameter of the frame and the inner diameter of each bearing in the first bearing set; and determine the target yaw bearing in the second bearing set based on the inner diameter of the bearing seat of the frame and the outer diameter of each bearing in the second bearing set.

[0067] In an exemplary embodiment, the first determination module 42 is used to determine the first wind rotor thrust of the front wind rotor according to the rated wind speed and the first coefficient of the dual-rotor wind turbine; determine the second wind rotor thrust of the rear wind rotor according to the rated wind speed and the second coefficient of the dual-rotor wind turbine; and determine the wind rotor thrust according to the sum of the first wind rotor thrust and the second wind rotor thrust.

[0068] In an exemplary embodiment, the first determination module 42 is used to determine the first wind rotor thrust F1 according to the following formula: F1=f(A1*0.5*ρ*V^3*πR1^2*Cp), wherein A1 is the first coefficient, ρ is the air density, V is the rated wind speed, R1 is the front wind rotor radius, and Cp is the dual wind rotor efficiency.

[0069] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0070] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0071] Optionally, in this embodiment, the storage medium may be configured to store program codes for executing the following steps:

[0072] S1, determining the wind rotor thrust according to the rated wind speed of the dual-rotor wind turbine set, wherein the front wind rotor and the rear wind rotor of the dual-rotor wind turbine set are in a Y shape;

[0073] S2, determining the rotor bending moment of the wind turbine generator set according to the rotor thrust and the rotor lever arm;

[0074] S3: determining a corresponding target yaw bearing according to the wind rotor bending moment.

[0075] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0076] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0077] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0078] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0079] S1, determining the wind rotor thrust according to the rated wind speed of the dual-rotor wind turbine set, wherein the front wind rotor and the rear wind rotor of the dual-rotor wind turbine set are in a Y shape;

[0080] S2, determining the rotor bending moment of the wind turbine generator set according to the rotor thrust and the rotor lever arm;

[0081] S3: determining a corresponding target yaw bearing according to the wind rotor bending moment.

[0082] An embodiment of the present application further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps in any one of the above method embodiments are implemented.

[0083] An embodiment of the present application further provides another computer program product, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0084] An embodiment of the present application also provides a computer program, which includes computer instructions, which are stored in a computer-readable storage medium; a processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the steps in any one of the above method embodiments.

[0085] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0086] S1, determining the wind rotor thrust according to the rated wind speed of the dual-rotor wind turbine set, wherein the front wind rotor and the rear wind rotor of the dual-rotor wind turbine set are in a Y shape;

[0087] S2, determining the rotor bending moment of the wind turbine generator set according to the rotor thrust and the rotor lever arm;

[0088] S3: determining a corresponding target yaw bearing according to the wind rotor bending moment.

[0089] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0090] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that herein, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.

[0091] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for determining a yaw bearing, characterized in that: include: The wind rotor thrust is determined according to the rated wind speed of the double-rotor wind turbine set, wherein the front wind rotor and the rear wind rotor of the double-rotor wind turbine set are in a Y shape; Determine the rotor bending moment of the wind turbine generator set according to the rotor thrust and the rotor lever arm; A corresponding target yaw bearing is determined according to the wind rotor bending moment.

2. The method according to claim 1, characterized in that Determining a corresponding target yaw bearing according to the wind rotor bending moment includes: Query a bearing table, wherein the bearing table includes: the inner diameter, outer diameter and loadable bending moment of each bearing; Determine a first bearing set in the bearing table according to the wind rotor bending moment, wherein the bending moment that can be carried by any bearing in the first bearing set is greater than or equal to the wind rotor bending moment; The size information of the frame of the dual-rotor wind turbine set is determined, and the target yaw bearing is determined in the first bearing set according to the size information.

3. The method according to claim 2, characterized in that Determining the target yaw bearing in the first bearing set according to the size information includes: Determining a second bearing set in the first bearing set according to the mounting hole diameter of the frame and the inner diameter of each bearing in the first bearing set; The target yaw bearing is determined in the second bearing set according to an inner diameter of a bearing seat of the frame and an outer diameter of each bearing in the second bearing set.

4. The method according to claim 1, characterized in that The rotor thrust is determined according to the rated wind speed of the double-rotor wind turbine, including: Determine the first wind rotor thrust of the front wind rotor according to the rated wind speed of the dual-wind rotor wind turbine set and the first coefficient; Determine the second wind rotor thrust of the rear wind rotor according to the rated wind speed and the second coefficient of the double-wind-rotor wind turbine set; The wind rotor thrust is determined according to the sum of the first wind rotor thrust and the second wind rotor thrust.

5. The method according to claim 4, characterized in that Determining the first wind rotor thrust of the front wind rotor according to the rated wind speed of the dual-wind rotor wind turbine set and the first coefficient includes: The first wind wheel thrust F1 is determined according to the following formula: F1=f(A1*0.5*ρ*V^3*πR1^2*Cp), wherein A1 is the first coefficient, ρ is the air density, V is the rated wind speed, R1 is the front wind rotor radius, and Cp is the dual wind rotor efficiency.

6. A device for determining a yaw bearing, characterized in that: include: A first determination module is used to determine the wind rotor thrust according to the rated wind speed of the dual-rotor wind turbine set, wherein the front wind rotor and the rear wind rotor of the dual-rotor wind turbine set are in a Y shape; A second determination module is used to determine the rotor bending moment of the wind turbine generator set according to the rotor thrust and the rotor lever arm; The third determination module is used to determine the corresponding target yaw bearing according to the wind rotor bending moment.

7. The device according to claim 6, characterized in that include: The third determination module is further used to query a bearing table, wherein the bearing table includes: The inner diameter, outer diameter and loadable bending moment of each bearing; determining a first bearing set in the bearing table according to the wind rotor bending moment, wherein the loadable bending moment of any bearing in the first bearing set is greater than or equal to the wind rotor bending moment; determining the size information of the frame of the dual-rotor wind turbine set, and determining the target yaw bearing in the first bearing set according to the size information.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the method according to any one of claims 1 to 5 is executed when the program is executed.

9. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to execute the method according to any one of claims 1 to 5 through the computer program.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 5 is implemented.

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