Control instruction sending method and device, storage medium and electronic equipment

Abstract

The embodiment of the invention provides a control instruction sending method and device, a storage medium and electronic equipment, and the method comprises the steps: obtaining first wind speed information of a target region corresponding to a wind turbine generator; under the condition that the first wind speed information indicates that the first wind speed of the target area is greater than a first preset wind speed and the duration of the first wind speed is greater than a first preset duration, determining a first variable pitch speed and a first variable pitch angle of blades of the wind turbine generator according to the first wind speed; and a first control instruction is sent to a variable pitch mechanism of the wind turbine generator according to the variable pitch speed and the first variable pitch angle, so that the variable pitch mechanism controls the blade to change the pitch based on the first variable pitch speed and the first variable pitch angle according to the first control instruction.

Description

Technical Field

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

[0002] In the design and operation of vertical axis wind turbines, the aerodynamic unloading mechanism is the key to ensure the safe operation of the turbine under high wind speed conditions. In traditional vertical axis wind turbines, the blade pitch control usually adopts a fixed pitch speed and pitch angle. Although this method can adjust the blade angle to a certain extent, the fixed parameter pitch control cannot accurately respond to wind speed changes under rapid wind speed changes or extreme wind speed conditions. In other words, the fixed pitch parameters limit the adaptability of the blades under different wind speed conditions and cannot achieve accurate blade pitch control.

[0003] In the prior art, fixed pitch parameters limit the adaptability of blades under different wind speed conditions and cannot achieve accurate blade pitch control. No effective solution has been proposed so far.

[0004] Therefore, it is necessary to improve the related technology to overcome the above-mentioned defects in the related technology. Summary of the invention

[0005] The embodiments of the present application provide a method and device for sending a control instruction, a storage medium and an electronic device, so as to at least solve the problem in the prior art that fixed pitch parameters limit the adaptability of blades under different wind speed conditions and cannot achieve accurate blade pitch control.

[0006] According to an embodiment of the present application, a method for sending a control instruction is provided, including: obtaining first wind speed information of a target area corresponding to a wind turbine; determining a first pitch speed and a first pitch angle of blades of the wind turbine according to the first wind speed when the first wind speed information indicates that the first wind speed of the target area is greater than a first preset wind speed and the duration of the first wind speed is greater than the first preset duration; and sending a first control instruction to a pitch mechanism of the wind turbine according to the pitch speed and the first pitch angle, so that the pitch mechanism controls the blades to pitch based on the first pitch speed and the first pitch angle according to the first control instruction.

[0007] In an exemplary embodiment, determining a first pitch speed and a first pitch angle of blades of the wind turbine generator set according to the first wind speed includes: obtaining a vertical axis unit height, a vertical axis wind rotor radius, and a vertical axis unit efficiency of the wind turbine generator set; determining a first pitch speed and a first pitch angle of blades of the wind turbine generator set according to the first wind speed, the vertical axis unit height, the vertical axis wind rotor radius, and the vertical axis unit efficiency.

[0008] In an exemplary embodiment, a first pitch speed and a first pitch angle of blades of the wind turbine unit are determined according to the first wind speed, the height of the vertical axis unit, the radius of the vertical axis wind rotor, and the efficiency of the vertical axis unit, including: determining the first pitch speed θ and the first pitch angle β of the blades of the wind turbine unit according to the following formula: f(θ, β) = f(0.5*ρ*V^3*H*D*2*Cp), wherein ρ is air density, V is the first wind speed, H is the height of the vertical axis unit, D is the radius of the vertical axis wind rotor, and Cp is the efficiency of the vertical axis unit.

[0009] In an exemplary embodiment, after determining the first pitch angle of the blades of the wind turbine according to the first wind speed, the method includes: determining the size relationship between the first pitch angle and the maximum pitch angle; when the size relationship indicates that the first pitch angle is greater than the maximum pitch angle, sending a first control instruction to the pitch mechanism of the wind turbine according to the first pitch speed and the maximum pitch angle; when the size relationship indicates that the first pitch angle is less than or equal to the maximum pitch angle, sending a first control instruction to the pitch mechanism of the wind turbine according to the first pitch speed and the first pitch angle.

[0010] In an exemplary embodiment, after sending a first control instruction to the pitch mechanism of the wind turbine set according to the pitch speed and the first pitch angle, the method further includes: obtaining second wind speed information of a target area corresponding to the wind turbine set, wherein the second wind speed information is used to indicate a second wind speed and a duration of the second wind speed; determining whether the second wind speed is less than or equal to a second preset wind speed, and whether the duration of the second wind speed is greater than a second preset duration, wherein the second preset wind speed is less than the first preset wind speed; when the second wind speed is less than or equal to the second preset wind speed, and the duration of the second wind speed is greater than the second preset duration, sending a second control instruction to the pitch mechanism of the wind turbine set according to a preset pitch speed and a preset pitch angle, so that the pitch mechanism controls the blades to pitch according to the second control instruction.

[0011] In an exemplary embodiment, after obtaining the second wind speed information of the target area corresponding to the wind turbine, the method further includes: determining whether the second wind speed is greater than a third preset wind speed, and whether the duration of the second wind speed is greater than the third preset duration, wherein the third preset wind speed is greater than the first preset wind speed; when the second wind speed is greater than the third preset wind speed, and the duration of the second wind speed is greater than the third preset duration, determining a second pitch speed and a second pitch angle of the blades of the wind turbine according to the second wind speed.

[0012] According to another embodiment of the present application, a control instruction sending device is provided, including: an acquisition module, used to acquire first wind speed information of a target area corresponding to a wind turbine; a determination module, used to determine a first pitch speed and a first pitch angle of blades of the wind turbine according to the first wind speed, when the first wind speed information indicates that the first wind speed of the target area is greater than a first preset wind speed and the duration of the first wind speed is greater than the first preset duration; a sending module, used to send a first control instruction to a pitch mechanism of the wind turbine according to the pitch speed and the first pitch angle, so that the pitch mechanism controls the blades to pitch based on the pitch speed and the first pitch angle according to the first control instruction.

[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 the present application, the first wind speed information of the target area corresponding to the wind turbine is obtained; when the first wind speed information indicates that the first wind speed of the target area is greater than the first preset wind speed, and the duration of the first wind speed is greater than the first preset duration, the first pitch speed and the first pitch angle of the blades of the wind turbine are determined according to the first wind speed; according to the pitch speed and the first pitch angle, a first control instruction is sent to the pitch mechanism of the wind turbine, so that the pitch mechanism controls the blades to pitch based on the first pitch speed and the first pitch angle according to the first control instruction. In the embodiment of the present application, the pitch speed and pitch angle of the blades are calculated and adjusted in real time according to the specific situation of the wind speed, which greatly improves the flexibility and accuracy of the control, and can ensure that the blades can pitch at the most suitable speed and angle under different wind speed conditions. Therefore, it can solve the problem that fixed pitch parameters limit the adaptability of blades under different wind speed conditions and cannot achieve accurate blade pitch control. 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 sending a control instruction according to an embodiment of the present application;

[0020] Figure 2 is a flow chart of a method for sending a control instruction according to an embodiment of the present application;

[0021] Figure 3 is a schematic diagram of the state of a blade according to an embodiment of the present application (I);

[0022] Figure 4 is a schematic diagram of the state of a blade according to an embodiment of the present application (II);

[0023] Figure 5 is a flow chart of a method for sending a control instruction according to an optional embodiment of the present application;

[0024] Figure 6 is a schematic diagram of a wind turbine according to an embodiment of the present application;

[0025] Figure 7 It is a structural block diagram of a device for sending control instructions according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] 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.

[0028] 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 of a method for sending a control instruction according to an embodiment of the present application. Figure 1 As shown, the computer device may include one or more ( Figure 1Only 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.

[0029] 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 sending control instructions 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 examples, 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.

[0030] The transmission device 106 is used to receive or send data via a network. The above-mentioned network specific examples may include a wireless network provided by a communication provider of a 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.

[0031] In this embodiment, a method for sending a control instruction is provided, which is applied to the above-mentioned computer device. Figure 2 is a flow chart of a method for sending a control instruction according to an embodiment of the present application, such as Figure 2 As shown, the process includes the following steps:

[0032] Step S202, obtaining first wind speed information of a target area corresponding to the wind turbine generator set;

[0033] Step S204, determining a first pitch speed and a first pitch angle of the blades of the wind turbine generator according to the first wind speed when the first wind speed information indicates that the first wind speed of the target area is greater than a first preset wind speed and the duration of the first wind speed is greater than the first preset duration;

[0034] After receiving the wind speed information, check whether the current wind speed exceeds the preset threshold (the first preset wind speed) and whether this state lasts for a period of time (the first preset duration). Once the trigger condition is met, the blade pitch speed and pitch angle will be dynamically calculated according to the current wind speed, that is, the pitch parameters are no longer fixed, but adjusted with the change of wind speed, which greatly enhances the adaptability and accuracy of blade pitch control.

[0035] Step S206: sending a first control instruction to the pitch mechanism of the wind turbine generator according to the pitch speed and the first pitch angle, so that the pitch mechanism controls the blades to pitch based on the first pitch speed and the first pitch angle according to the first control instruction.

[0036] After determining the pitch speed and pitch angle, the process sends a control command to the wind turbine’s pitch mechanism, instructing it to perform blade pitch operations according to the calculated pitch speed and angle. This ensures that the pitch operation can accurately respond to wind speed changes and achieve intelligent control of the blade’s aerodynamic performance.

[0037] like Figure 4 As shown, the pitch mechanism is located below the blade.

[0038] Through the above steps, the first wind speed information of the target area corresponding to the wind turbine is obtained; when the first wind speed information indicates that the first wind speed of the target area is greater than the first preset wind speed, and the duration of the first wind speed is greater than the first preset duration, the first pitch speed and the first pitch angle of the blades of the wind turbine are determined according to the first wind speed; according to the pitch speed and the first pitch angle, a first control instruction is sent to the pitch mechanism of the wind turbine, so that the pitch mechanism controls the blades to pitch based on the first pitch speed and the first pitch angle according to the first control instruction. In the embodiment of the present application, the pitch speed and pitch angle of the blades are calculated and adjusted in real time according to the specific situation of the wind speed, which greatly improves the flexibility and accuracy of the control, and can ensure that the blades can pitch at the most suitable speed and angle under different wind speed conditions. Therefore, it can solve the problem that fixed pitch parameters limit the adaptability of blades under different wind speed conditions and cannot achieve accurate blade pitch control.

[0039] In an exemplary embodiment, determining a first pitch speed and a first pitch angle of blades of the wind turbine generator set according to the first wind speed includes: obtaining a vertical axis unit height, a vertical axis wind rotor radius, and a vertical axis unit efficiency of the wind turbine generator set; determining a first pitch speed and a first pitch angle of blades of the wind turbine generator set according to the first wind speed, the vertical axis unit height, the vertical axis wind rotor radius, and the vertical axis unit efficiency.

[0040] It should be noted that the height of the vertical axis unit affects the wind speed layer and wind speed distribution that the wind turbine is exposed to. Taller wind turbines can better utilize wind energy, but at the same time they may also encounter more complex and more variable wind speed environments.

[0041] The vertical axis wind rotor radius determines the wind swept area of ​​the wind turbine, which in turn affects its ability to capture wind energy. A larger radius means greater wind energy capture potential, but it may also increase the complexity and cost of the mechanical structure.

[0042] The vertical axis unit efficiency reflects the ability of a wind turbine to convert wind energy into mechanical energy and is an important indicator for evaluating the performance of a wind turbine.

[0043] First, wind speed information determines the size of the aerodynamic load of the wind turbine. Under high wind speed conditions, excessive aerodynamic load may cause the unit to overload, so it is necessary to adjust the pitch speed and angle to achieve aerodynamic unloading to ensure the safety of the unit.

[0044] In the embodiment of the present application, first, the vertical axis unit height, vertical axis wind rotor radius, vertical axis unit efficiency and other parameters of the wind turbine are obtained. Then, according to the real-time first wind speed information (V), vertical axis unit height (H), vertical axis wind rotor radius (D) and vertical axis unit efficiency (Cp), the first pitch speed and the first pitch angle of the blade are dynamically calculated and determined.

[0045] For example, when the wind speed increases, a faster pitch speed and a smaller pitch angle may be required to quickly reduce the effective windward area of ​​the blades and reduce the aerodynamic load; conversely, when the wind speed decreases, a slower pitch speed and a larger pitch angle may be required to increase the windward area of ​​the blades and improve wind energy capture efficiency.

[0046] Through the above parameter determination process based on the first wind speed, dynamic optimization of blade pitch control can be achieved to solve the limitations of fixed pitch parameters. It can ensure that the wind turbine can operate at the optimal pitch speed and angle under different wind speed conditions, which not only improves the response speed and accuracy of the blades to wind speed changes, but also effectively balances the relationship between unit efficiency and safety, reduces the wear of the actuator, extends the service life of the wind turbine, and reduces maintenance costs.

[0047] In an exemplary embodiment, a first pitch speed and a first pitch angle of blades of the wind turbine unit are determined according to the first wind speed, the height of the vertical axis unit, the radius of the vertical axis wind rotor, and the efficiency of the vertical axis unit, including: determining the first pitch speed θ and the first pitch angle β of the blades of the wind turbine unit according to the following formula: f(θ, β) = f(0.5*ρ*V^3*H*D*2*Cp), wherein ρ is air density, V is the first wind speed, H is the height of the vertical axis unit, D is the radius of the vertical axis wind rotor, and Cp is the efficiency of the vertical axis unit.

[0048] The formula determines the optimal pitch speed and angle by calculating the aerodynamic torque of the wind turbine. The aerodynamic torque is the rotational torque generated by the wind acting on the blades, which is proportional to the cube of the wind speed, air density, the swept area of ​​the wind rotor (determined by height and radius), and the unit efficiency.

[0049] The right side of the formula f(0.5*ρ*V^3*H*D*2*Cp) essentially calculates the aerodynamic torque of the wind turbine under given wind speed and turbine structure parameters. The size of the aerodynamic torque is directly related to the load on the blades and the speed of the wind turbine, and is the key factor in determining whether pitch change is required and how to adjust the pitch change parameters.

[0050] Through the above control strategy, the wind turbine can reduce the effective windward area of ​​the blades by quickly adjusting the pitch speed and angle under high wind speed conditions, effectively reduce the aerodynamic torque, avoid unit overload, and ensure structural safety; under low wind speed conditions, adjust the pitch parameters to increase the windward area of ​​the blades and improve the wind energy capture efficiency, thereby maximizing power generation within a safe range; reasonably control the pitch speed and angle to avoid excessive wear of the actuator, extend the service life of the wind turbine, and reduce maintenance costs.

[0051] In an exemplary embodiment, after determining the first pitch angle of the blades of the wind turbine according to the first wind speed, the method includes: determining the size relationship between the first pitch angle and the maximum pitch angle; when the size relationship indicates that the first pitch angle is greater than the maximum pitch angle, sending a first control instruction to the pitch mechanism of the wind turbine according to the first pitch speed and the maximum pitch angle; when the size relationship indicates that the first pitch angle is less than or equal to the maximum pitch angle, sending a first control instruction to the pitch mechanism of the wind turbine according to the first pitch speed and the first pitch angle.

[0052] After determining the first pitch angle, the angle is first compared with the maximum pitch angle set by the system. The maximum pitch angle is usually pre-set (for example, 90°) based on comprehensive factors such as the mechanical structure, material strength, and aerodynamic safety of the wind turbine to prevent the blades from being damaged due to excessive pitch angles under extreme conditions, or causing unstable operation of the wind turbine.

[0053] If the first pitch angle is greater than the maximum pitch angle, it means that the pitch angle calculated according to the current wind speed exceeds the safety range. At this time, the control command will be sent according to the first pitch speed and the maximum pitch angle. Therefore, even under high wind speed conditions, the pitch mechanism will adjust the blades to the preset maximum safe pitch angle to avoid exceeding the safety limit.

[0054] If the first pitch angle is less than or equal to the maximum pitch angle, it means that the calculated pitch angle is within the safe range, and a control command will be sent according to the first pitch speed and the first pitch angle. This ensures that the blades can be adjusted at the most appropriate angle when the wind speed changes, without exceeding the safety limit, and can effectively respond to wind speed changes and optimize the performance of the wind turbine.

[0055] By limiting the size of the pitch angle, a balance between the safety and performance of the wind turbine blade pitch control is achieved, ensuring that under various wind speed conditions, the blade pitch operation can effectively respond to wind speed changes while avoiding exceeding mechanical and aerodynamic safety limits, demonstrating a high degree of intelligence and safety optimization.

[0056] In an exemplary embodiment, after sending a first control instruction to the pitch mechanism of the wind turbine set according to the pitch speed and the first pitch angle, the method further includes: obtaining second wind speed information of a target area corresponding to the wind turbine set, wherein the second wind speed information is used to indicate a second wind speed and a duration of the second wind speed; determining whether the second wind speed is less than or equal to a second preset wind speed, and whether the duration of the second wind speed is greater than a second preset duration, wherein the second preset wind speed is less than the first preset wind speed; when the second wind speed is less than or equal to the second preset wind speed, and the duration of the second wind speed is greater than the second preset duration, sending a second control instruction to the pitch mechanism of the wind turbine set according to a preset pitch speed and a preset pitch angle, so that the pitch mechanism controls the blades to pitch according to the second control instruction.

[0057] After sending the first control instruction, the wind speed change in the target area will continue to be monitored to obtain the second wind speed information, including the current wind speed (the second wind speed) and the duration of the wind speed. That is, the control strategy of the embodiment of the present application has continuous environmental perception capabilities, can capture and respond to dynamic changes in wind speed in a timely manner, and ensure that the wind turbine can be properly controlled under different wind speed conditions.

[0058] The second wind speed is compared with the preset second preset wind speed, and it is checked whether the duration of the second wind speed exceeds the second preset duration. The second preset wind speed here can be understood as a smaller wind speed. When it is less than the second preset wind speed, it can be understood as no wind or a smaller wind speed.

[0059] After determining that the second wind speed meets the low wind speed condition (ie, the second wind speed is less than or equal to the second preset wind speed and the duration exceeds the second preset duration), a second control instruction will be sent to the pitch mechanism according to the preset pitch speed and pitch angle.

[0060] In the embodiment of the present application, by distinguishing the control strategies under different wind speed conditions, the system can respond quickly at high wind speeds and change the pitch to reduce the aerodynamic load and ensure safety; at low wind speeds, the power generation efficiency is improved by optimizing the control instructions, reflecting the consideration of both safety and efficiency.

[0061] In an exemplary embodiment, after obtaining the second wind speed information of the target area corresponding to the wind turbine, the method further includes: determining whether the second wind speed is greater than a third preset wind speed, and whether the duration of the second wind speed is greater than the third preset duration, wherein the third preset wind speed is greater than the first preset wind speed; when the second wind speed is greater than the third preset wind speed, and the duration of the second wind speed is greater than the third preset duration, determining a second pitch speed and a second pitch angle of the blades of the wind turbine according to the second wind speed.

[0062] After obtaining the second wind speed information of the target area corresponding to the wind turbine, the system checks whether the wind speed exceeds the more stringent third preset wind speed threshold. The third preset wind speed is set higher than the first preset wind speed, which means it is a special threshold for a sharp increase in wind speed or in extreme weather conditions, and is used to trigger a more aggressive blade pitch control strategy to protect the wind turbine from damage by ultra-high-speed winds.

[0063] In addition to the wind speed, the system also takes into account the duration of the second wind speed, ensuring that the second control instruction is triggered only when the wind speed is not only high but also lasts long enough. This mechanism avoids overreaction to short-term wind speed fluctuations, reduces unnecessary blade adjustments, and protects the actuator from unnecessary loads.

[0064] When the second wind speed satisfies the conditions of being greater than the third preset wind speed and lasting longer than the third preset duration, the system will recalculate and determine the second pitch speed and second pitch angle of the blade based on the second wind speed. The determination of the second pitch speed and angle reflects the emergency response measures of the system under extremely high wind speed conditions, with the goal of quickly adjusting the blade attitude and reducing the effective windward area of ​​the blade, thereby reducing the aerodynamic load and protecting the structural safety of the wind turbine.

[0065] In order to better understand the process of the method for sending the above-mentioned control instructions, the implementation method flow of sending the above-mentioned control instructions is described below in combination with an optional embodiment, but it is not used to limit the technical solution of the embodiment of the present application.

[0066] In this embodiment, a method for sending a control instruction is provided. Figure 5 is a flow chart of a method for sending a control instruction according to an optional embodiment of the present application, such as Figure 5 As shown, the specific steps are as follows:

[0067] Step S501: the wind turbine is shut down;

[0068] like Figure 3 As shown, at this time, the pitch angle of the blades of the wind turbine generator set is 90°.

[0069] Step S502: when the anemometer detects that the wind speed is greater than a first preset threshold value (3 m / s) and lasts for a first duration, determining a pitch rate and a pitch angle of the blade;

[0070] Among them, the pitch rate and pitch angle of the blade are determined by the following formula:

[0071] f(θ, β) = f(0.5*ρ*V^3*H*D*2*Cp), where θ is the pitch rate, β is the pitch angle, V is the incoming wind speed, H is the vertical axis unit height; D is the vertical axis wind rotor radius; Cp is the vertical axis unit efficiency, where the vertical axis unit height and vertical axis wind rotor radius of the wind turbine are as follows: Figure 6 shown.

[0072] Step S503: the pitch mechanism controls the rotation of the blades according to the pitch rate and pitch angle;

[0073] At this point, the state of the blade can be Figure 4 As shown, Figure 4 The pitch angle of the blades in is 0°.

[0074] Step S504: the wind turbine generates electricity;

[0075] Step S505: When there is no wind or no wind in the current environment, the blades move in the direction of closing the blades.

[0076] At this point, the state of the blade can be Figure 4 As shown, Figure 4 The pitch angle of the blades in is 90°.

[0077] 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.

[0078] In the present embodiment, a device for sending a control instruction is also provided, and the device is used to implement the above-mentioned embodiment and preferred implementation mode, and the description has been made no further. As used below, the term "module" can implement a combination of software and / or hardware of 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 conceived.

[0079] Figure 7 is a structural block diagram of a device for sending control instructions according to an embodiment of the present application, such as Figure 7 As shown, the device comprises:

[0080] An acquisition module 72 is used to acquire first wind speed information of a target area corresponding to the wind turbine generator set;

[0081] A determination module 74 is configured to determine a first pitch speed and a first pitch angle of the blades of the wind turbine generator according to the first wind speed when the first wind speed information indicates that the first wind speed of the target area is greater than a first preset wind speed and the duration of the first wind speed is greater than the first preset duration;

[0082] The sending module 76 is used to send a first control instruction to the pitch mechanism of the wind turbine according to the pitch speed and the first pitch angle, so that the pitch mechanism controls the blades to pitch based on the pitch speed and the first pitch angle according to the first control instruction.

[0083] Through the above-mentioned device, the first wind speed information of the target area corresponding to the wind turbine is obtained; when the first wind speed information indicates that the first wind speed of the target area is greater than the first preset wind speed, and the duration of the first wind speed is greater than the first preset duration, the first pitch speed and the first pitch angle of the blades of the wind turbine are determined according to the first wind speed; according to the pitch speed and the first pitch angle, a first control instruction is sent to the pitch mechanism of the wind turbine, so that the pitch mechanism controls the blades to pitch based on the first pitch speed and the first pitch angle according to the first control instruction. In the embodiment of the present application, the pitch speed and pitch angle of the blades are calculated and adjusted in real time according to the specific situation of the wind speed, which greatly improves the flexibility and accuracy of the control, and can ensure that the blades can pitch at the most suitable speed and angle under different wind speed conditions. Therefore, it can solve the problem that fixed pitch parameters limit the adaptability of blades under different wind speed conditions and cannot achieve accurate blade pitch control.

[0084] In an exemplary embodiment, a determination module 74 is used to obtain the vertical axis unit height, the vertical axis wind rotor radius, and the vertical axis unit efficiency of the wind turbine unit; and determine the first pitch speed and the first pitch angle of the blades of the wind turbine unit according to the first wind speed, the vertical axis unit height, the vertical axis wind rotor radius, and the vertical axis unit efficiency.

[0085] In an exemplary embodiment, a determination module 74 is used to determine a first pitch speed θ and a first pitch angle β of the blades of the wind turbine generator set according to the following formula: f(θ, β) = f(0.5*ρ*V^3*H*D*2*Cp), wherein ρ is the air density, V is the first wind speed, H is the height of the vertical axis unit, D is the radius of the vertical axis wind wheel, and Cp is the efficiency of the vertical axis unit.

[0086] In an exemplary embodiment, the determination module 74 is used to determine the magnitude relationship between the first pitch angle and the maximum pitch angle; when the magnitude relationship indicates that the first pitch angle is greater than the maximum pitch angle, send a first control instruction to the pitch mechanism of the wind turbine generator according to the first pitch speed and the maximum pitch angle;

[0087] The sending module 76 is used to send a first control instruction to the pitch mechanism of the wind turbine generator according to the first pitch speed and the first pitch angle when the magnitude relationship indicates that the first pitch angle is less than or equal to the maximum pitch angle.

[0088] In an exemplary embodiment, the acquisition module 72 is used to acquire second wind speed information of a target area corresponding to the wind turbine generator set, wherein the second wind speed information is used to indicate a second wind speed and a duration of the second wind speed;

[0089] A determination module 74 is used to determine whether the second wind speed is less than or equal to a second preset wind speed, and whether the duration of the second wind speed is greater than a second preset duration, wherein the second preset wind speed is less than the first preset wind speed;

[0090] The sending module 76 is used to send a second control instruction to the pitch mechanism of the wind turbine set according to a preset pitch speed and a preset pitch angle when the second wind speed is less than or equal to a second preset wind speed and the duration of the second wind speed is greater than the second preset duration, so that the pitch mechanism controls the blades to pitch according to the second control instruction.

[0091] In an exemplary embodiment, a determination module 74 is used to determine whether the second wind speed is greater than a third preset wind speed, and whether the duration of the second wind speed is greater than the third preset duration, wherein the third preset wind speed is greater than the first preset wind speed; when the second wind speed is greater than the third preset wind speed, and the duration of the second wind speed is greater than the third preset duration, a second pitch speed and a second pitch angle of the blades of the wind turbine are determined according to the second wind speed.

[0092] 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.

[0093] 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 run.

[0094] Optionally, in this embodiment, the storage medium may be configured to store program codes for executing the following steps:

[0095] S1, obtaining first wind speed information of a target area corresponding to a wind turbine generator set;

[0096] S2, when the first wind speed information indicates that the first wind speed in the target area is greater than a first preset wind speed, and the duration of the first wind speed is greater than the first preset duration, determining a first pitch speed and a first pitch angle of the blades of the wind turbine generator according to the first wind speed;

[0097] S3: Sending a first control instruction to the pitch mechanism of the wind turbine generator set according to the pitch speed and the first pitch angle, so that the pitch mechanism controls the blades to pitch based on the first pitch speed and the first pitch angle according to the first control instruction.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0102] S1, obtaining first wind speed information of a target area corresponding to a wind turbine generator set;

[0103] S2, when the first wind speed information indicates that the first wind speed in the target area is greater than a first preset wind speed, and the duration of the first wind speed is greater than the first preset duration, determining a first pitch speed and a first pitch angle of the blades of the wind turbine generator according to the first wind speed;

[0104] S3: Sending a first control instruction to the pitch mechanism of the wind turbine generator set according to the pitch speed and the first pitch angle, so that the pitch mechanism controls the blades to pitch based on the first pitch speed and the first pitch angle according to the first control instruction.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0109] S1, obtaining first wind speed information of a target area corresponding to a wind turbine generator set;

[0110] S2, when the first wind speed information indicates that the first wind speed in the target area is greater than a first preset wind speed, and the duration of the first wind speed is greater than the first preset duration, determining a first pitch speed and a first pitch angle of the blades of the wind turbine generator according to the first wind speed;

[0111] S3: Sending a first control instruction to the pitch mechanism of the wind turbine generator set according to the pitch speed and the first pitch angle, so that the pitch mechanism controls the blades to pitch based on the first pitch speed and the first pitch angle according to the first control instruction.

[0112] 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.

[0113] 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.

[0114] 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 sending a control instruction, characterized in that: include: Acquire first wind speed information of a target area corresponding to the wind turbine generator set; When the first wind speed information indicates that the first wind speed in the target area is greater than a first preset wind speed, and the duration of the first wind speed is greater than the first preset duration, determining a first pitch speed and a first pitch angle of the blades of the wind turbine generator according to the first wind speed; A first control instruction is sent to a pitch mechanism of the wind turbine generator set according to the pitch speed and the first pitch angle, so that the pitch mechanism controls the blades to pitch based on the first pitch speed and the first pitch angle according to the first control instruction.

2. The method according to claim 1, characterized in that Determining a first pitch speed and a first pitch angle of blades of the wind turbine generator set according to the first wind speed includes: Obtaining the vertical axis unit height, vertical axis wind wheel radius, and vertical axis unit efficiency of the wind turbine unit; A first pitch speed and a first pitch angle of blades of the wind turbine generator set are determined according to the first wind speed, the height of the vertical-axis unit, the radius of the vertical-axis wind rotor, and the efficiency of the vertical-axis unit.

3. The method according to claim 2, characterized in that Determining a first pitch speed and a first pitch angle of blades of the wind turbine generator set according to the first wind speed, the height of the vertical axis unit, the radius of the vertical axis wind rotor, and the efficiency of the vertical axis unit includes: The first pitch speed θ and the first pitch angle β of the blades of the wind turbine generator set are determined according to the following formula: f(θ, β)=f(0.5*ρ*V^3*H*D*2*Cp), where ρ is the air density, V is the first wind speed, H is the height of the vertical axis unit, and D is the radius of the vertical axis wind wheel. Cp is the vertical axis unit efficiency.

4. The method according to claim 1, characterized in that After determining a first pitch angle of a blade of the wind turbine generator set according to the first wind speed, the method includes: Determining a magnitude relationship between the first pitch angle and a maximum pitch angle; When the magnitude relationship indicates that the first pitch angle is greater than the maximum pitch angle, sending a first control instruction to the pitch mechanism of the wind turbine generator set according to the first pitch speed and the maximum pitch angle; When the magnitude relationship indicates that the first pitch angle is less than or equal to the maximum pitch angle, a first control instruction is sent to the pitch mechanism of the wind turbine generator set according to the first pitch speed and the first pitch angle.

5. The method according to claim 1, characterized in that After sending a first control instruction to a pitch mechanism of the wind turbine generator set according to the pitch speed and the first pitch angle, the method further includes: Acquire second wind speed information of a target area corresponding to the wind turbine generator set, wherein the second wind speed information is used to indicate a second wind speed and a duration of the second wind speed; Determine whether the second wind speed is less than or equal to a second preset wind speed, and whether the duration of the second wind speed is greater than a second preset duration, wherein the second preset wind speed is less than the first preset wind speed; When the second wind speed is less than or equal to the second preset wind speed, and the duration of the second wind speed is greater than the second preset duration, a second control instruction is sent to the pitch mechanism of the wind turbine according to the preset pitch speed and the preset pitch angle, so that the pitch mechanism controls the blades to pitch according to the second control instruction.

6. The method according to claim 5, characterized in that After obtaining the second wind speed information of the target area corresponding to the wind turbine generator set, the method further includes: Determine whether the second wind speed is greater than a third preset wind speed, and whether the duration of the second wind speed is greater than a third preset duration, wherein the third preset wind speed is greater than the first preset wind speed; When the second wind speed is greater than the third preset wind speed and the duration of the second wind speed is greater than the third preset duration, a second pitch speed and a second pitch angle of the blades of the wind turbine are determined according to the second wind speed.

7. A control instruction sending device, characterized in that: include: An acquisition module, used to acquire first wind speed information of a target area corresponding to the wind turbine generator set; a determination module, configured to determine a first pitch speed and a first pitch angle of the blades of the wind turbine generator according to the first wind speed, when the first wind speed information indicates that the first wind speed of the target area is greater than a first preset wind speed and the duration of the first wind speed is greater than the first preset duration; A sending module is used to send a first control instruction to the pitch mechanism of the wind turbine according to the pitch speed and the first pitch angle, so that the pitch mechanism controls the blades to pitch based on the pitch speed and the first pitch angle according to the first control instruction.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the program executes the method according to any one of claims 1 to 6 when 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 6 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 6 is implemented.

Images