Adaptive yaw control method and device for wind turbine generator

Abstract

Disclosed are an adaptive yaw control method and device for a wind turbine generator, the adaptive yaw control method comprising: acquiring unit operation data of the wind turbine generator and a meteorological warning wind speed; identifying whether the wind turbine generator has a fault based on the unit operation data; in response to identifying that the wind turbine generator has no fault, determining whether the meteorological warning wind speed is greater than a first preset wind speed; in response to the meteorological warning wind speed being less than or equal to the first preset wind speed, performing yaw control based on a first mode on the wind turbine generator; and in response to the meteorological warning wind speed being greater than the first preset wind speed, performing yaw control based on a second mode on the wind turbine generator, wherein the first mode indicates a first yaw operation state of an upwind leading edge against wind, and the second mode indicates a second yaw operation state of a downwind trailing edge against wind.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of wind power generation in general, and more particularly, to a method and device for adaptive yaw control of a wind turbine. BACKGROUND

[0002] In the wind power industry, offshore / onshore wind power construction is facing an overall acceleration. China is located on the west side of the Pacific Ocean and is one of the countries most seriously affected by typhoons. Typhoons that come and go at irregular times have both advantages and disadvantages for offshore wind farms: weaker typhoons can bring more full-load generating hours to wind farms, increase power generation, and improve the economic benefits of wind farms; stronger typhoons will cause great damage to wind farms. Therefore, how to reduce the disaster caused by typhoons to wind farms will be a problem that needs to be considered for the development of offshore / onshore wind power.

[0003] In the related art, as the diameter of the impeller used by the wind turbine is designed to be larger and larger, and the wind parameters in the market of bidding V50 (i.e., 50-year typhoon wind speed) are higher and higher, the above problems are paid more and more attention to, and the load under the extreme V50 working condition becomes a key problem for the design of the wind turbine, which greatly increases the design cost of the generator set and reduces the adaptability of the wind turbine.

[0004] Therefore, in order to solve the above problems, how to realize the typhoon resistance design of the wind turbine from the yaw control of the wind turbine has become the focus of the industry. SUMMARY

[0005] Embodiments of the present disclosure provide a method and device for adaptive yaw control of a wind turbine, thereby realizing adaptive yaw load reduction protection of the wind turbine under different wind speed scenarios.

[0006] In one general aspect, there is provided a method for adaptive yaw control of a wind turbine, including: obtaining turbine operating data and a meteorological warning wind speed of the wind turbine; identifying whether a fault occurs in the wind turbine based on the turbine operating data; in response to identifying that no fault occurs in the wind turbine, determining whether the meteorological warning wind speed is greater than a first preset wind speed; in response to the meteorological warning wind speed being less than or equal to the first preset wind speed, performing yaw control based on a first mode for the wind turbine; and in response to the meteorological warning wind speed being greater than the first preset wind speed, performing yaw control based on a second mode for the wind turbine, wherein the first mode indicates a first yaw operating state of an upwind leading edge against the wind, and the second mode indicates a second yaw operating state of a downwind trailing edge against the wind.

[0007] Optionally, in response to the weather warning wind speed being greater than the first preset wind speed, the step of performing yaw control based on the second mode for the wind turbine can comprise: obtaining a current turbine operating wind speed of the wind turbine; in response to the weather warning wind speed being greater than the first preset wind speed and the current turbine operating wind speed being greater than or equal to a first yaw switching wind speed, performing yaw control based on the second mode for the wind turbine to enable the wind turbine to operate in a second anti-tai mode.

[0008] Optionally, in response to the weather warning wind speed being less than or equal to the first preset wind speed, the step of performing yaw control based on the first mode for the wind turbine can comprise: in response to the weather warning wind speed being less than or equal to the first preset wind speed and the current turbine operating wind speed being less than the first yaw switching wind speed, performing yaw control based on the first mode for the wind turbine to enable the wind turbine to operate in a first anti-tai mode.

[0009] Optionally, the step of performing yaw control based on the second mode for the wind turbine can comprise: in a case where an operating power of the wind turbine satisfies a predetermined condition, performing downwind yaw alignment for the wind turbine, so that a blade pitch angle of the wind turbine is switched from a first blade pitch angle combination to a second blade pitch angle combination, wherein the first blade pitch angle combination is an optimized blade pitch angle combination corresponding to yaw alignment, and the second blade pitch angle combination is an optimized blade pitch angle combination corresponding to tail edge alignment.

[0010] Optionally, after the step of performing yaw control based on the second mode for the wind turbine in response to the weather warning wind speed being greater than the first preset wind speed, the adaptive yaw control method can further comprise: in response to the current turbine operating wind speed being less than a second yaw switching wind speed for a preset time period, determining whether the weather warning wind speed is less than the first preset wind speed; in response to the weather warning wind speed being less than the first preset wind speed, performing yaw control based on the first mode for the wind turbine; and in response to the weather warning wind speed being greater than or equal to the first preset wind speed, maintaining the yaw control based on the second mode for the wind turbine.

[0011] Optionally, in response to the weather warning wind speed being less than the first preset wind speed, the step of performing yaw control based on the first mode for the wind turbine can comprise: in response to the weather warning wind speed being less than the first preset wind speed, performing upwind yaw alignment for the wind turbine, so that the blade pitch angle of the wind turbine is switched from the second blade pitch angle combination to the first blade pitch angle combination.

[0012] Optionally, the adaptive yaw control method can further include: in response to the current unit operating wind speed being less than the second yaw switching wind speed for a preset time length, maintaining the yaw control of the wind turbine based on the second mode.

[0013] Optionally, the adaptive yaw control method can further include: obtaining a unit operating wind speed of the wind turbine; in response to identifying that the wind turbine is in failure and the current unit operating wind speed is less than or equal to a preset failure maintenance wind speed, performing yaw control of the wind turbine based on a third mode; and in response to identifying that the wind turbine is in failure and the current unit operating wind speed is greater than the preset failure maintenance wind speed, performing yaw control of the wind turbine based on a fourth mode, wherein the third mode indicates a third yaw operating state of an up / down wind direction against wind for failure maintenance, and the fourth mode indicates a fourth yaw operating state of the up / down wind direction against wind for failure anti-tai.

[0014] In another general aspect, there is provided an adaptive yaw control device of a wind turbine, the adaptive yaw control device comprising: a data acquisition module configured to acquire unit operating data of a wind turbine and a meteorological warning wind speed; a failure identification module configured to identify whether the wind turbine is in failure based on the unit operating data; and a yaw control module configured to, in response to identifying that the wind turbine is not in failure, determine whether the meteorological warning wind speed is greater than a first preset wind speed, in response to the meteorological warning wind speed being less than or equal to the first preset wind speed, perform yaw control of the wind turbine based on a first mode, and in response to the meteorological warning wind speed being greater than the first preset wind speed, perform yaw control of the wind turbine based on a second mode, wherein the first mode indicates a first yaw operating state of an upwind direction leading edge against wind for anti-tai, and the second mode indicates a second yaw operating state of a downwind direction trailing edge against wind for anti-tai.

[0015] Optionally, the yaw control module, in response to the meteorological warning wind speed being greater than the first preset wind speed, performing yaw control of the wind turbine based on the second mode can include: obtaining a unit operating wind speed of the wind turbine; in response to the meteorological warning wind speed being greater than the first preset wind speed and the current unit operating wind speed being greater than or equal to a first yaw switching wind speed, performing yaw control of the wind turbine based on the second mode to enable the wind turbine to operate in a second anti-tai mode.

[0016] Optionally, the yaw control module, in response to the weather warning wind speed being less than or equal to the first preset wind speed, performing the operation of executing the yaw control based on the first mode for the wind turbine can include: in response to the weather warning wind speed being less than or equal to the first preset wind speed and the current unit operating wind speed being less than the first yaw switching wind speed, executing the yaw control based on the first mode for the wind turbine to enable the wind turbine to operate in a first typhoon-resistant mode.

[0017] Optionally, the yaw control module, in response to the weather warning wind speed being less than or equal to the first preset wind speed, performing the operation of executing the yaw control based on the first mode for the wind turbine can include: in response to the weather warning wind speed being less than or equal to the first preset wind speed and the current unit operating wind speed being less than the first yaw switching wind speed, executing the yaw control based on the first mode for the wind turbine to enable the wind turbine to operate in a first typhoon-resistant mode.

[0018] Optionally, after the yaw control module, in response to the weather warning wind speed being greater than the first preset wind speed, performs the operation of executing the yaw control based on the second mode for the wind turbine, the yaw control module can be further configured to: in response to the current unit operating wind speed being less than a second yaw switching wind speed for a preset time duration, determine whether the weather warning wind speed is less than the first preset wind speed; in response to the weather warning wind speed being less than the first preset wind speed, execute the yaw control based on the first mode for the wind turbine; and in response to the weather warning wind speed being greater than or equal to the first preset wind speed, maintain the execution of the yaw control based on the second mode for the wind turbine.

[0019] Optionally, the yaw control module, in response to the weather warning wind speed being less than or equal to the first preset wind speed, performing the operation of executing the yaw control based on the first mode for the wind turbine can include: in response to the weather warning wind speed being less than or equal to the first preset wind speed, executing upwind yaw alignment for the wind turbine, so that the blade pitch angle of the wind turbine is switched from the second blade pitch angle combination to the first blade pitch angle combination.

[0020] Optionally, the yaw control module can be further configured to: in response to the current unit operating wind speed being less than a second yaw switching wind speed for a preset time duration, maintain the execution of the yaw control based on the second mode for the wind turbine.

[0021] Optionally, the data acquisition module can be further configured to acquire a current operating wind speed of the wind turbine; the yaw control module can be further configured to, in response to identifying that the wind turbine is in failure by the failure identification module and the current operating wind speed is less than or equal to a preset failure maintenance wind speed, perform yaw control based on a third mode on the wind turbine; in response to identifying that the wind turbine is in failure by the failure identification module and the current operating wind speed is greater than the preset failure maintenance wind speed, perform yaw control based on a fourth mode on the wind turbine, wherein the third mode indicates a third yaw operating state of upwind / downwind against wind for failure maintenance, and the fourth mode indicates a fourth yaw operating state of upwind / downwind against wind for failure resistance.

[0022] In another general aspect, there is provided a computer program product including computer programs / instructions that, when executed by a processor, implement the adaptive yaw control method as described above.

[0023] In another general aspect, there is provided a computer readable storage medium that, when instructions in the computer readable storage medium are executed by a processor of an electronic device / server, enables the electronic device / server to perform the adaptive yaw control method as described above.

[0024] In another general aspect, there is provided a computer device including at least one processor and at least one memory storing computer executable instructions that, when executed by the at least one processor, cause the at least one processor to perform the adaptive yaw control method as described above.

[0025] The adaptive yaw control method and device of a wind turbine according to embodiments of the present disclosure reduce the actual load of the wind turbine under typhoon by the proposed adaptive yaw control strategy based on meteorological warning, achieve adaptive yaw load reduction protection of the wind turbine under different wind speed scenarios, thereby reducing the design cost of each turbine component and improving the reliability of the wind turbine. In addition, by using the adaptive yaw control strategy based on meteorological warning, it can be ensured that the wind turbine can cut in power generation again under the scenario of not exceeding the maximum resistance wind speed, so as to ensure that the wind turbine can also achieve sufficient power grabbing under typhoon or extreme V50, thereby improving the efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] The above and other objects and features of the present disclosure will become more apparent from the following description when taken in conjunction with the accompanying drawings, in which:

[0027] Figure 1is a flowchart illustrating an adaptive yaw control method of a wind turbine according to an embodiment of the disclosure;

[0028] Figure 2 is a flowchart illustrating an example of an adaptive yaw control method of a wind turbine according to an embodiment of the disclosure;

[0029] Figure 3 is a block diagram illustrating an adaptive yaw control apparatus of a wind turbine according to an embodiment of the disclosure;

[0030] Figure 4 is a block diagram illustrating a computer device according to an embodiment of the disclosure. DETAILED DESCRIPTION

[0031] The following detailed description is provided to help the reader obtain a thorough understanding of the methods, devices, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be clear to those skilled in the art after understanding the disclosure provided herein. For example, the order of the operations described herein is merely an example, and is not limited to those set forth herein, but can be changed as will be clear to one of ordinary skill in the art after understanding the disclosure provided herein. Also, the description of features known in the art can be omitted for the sake of clarity and conciseness.

[0032] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, these examples have been provided so that this disclosure will be thorough and complete, and will fully convey the scope of the methods, devices, and / or systems described herein to one of ordinary skill in the art.

[0033] As used herein, the term "and / or" includes any one of the associated listed items, as well as any combination of any two or more of the associated listed items.

[0034] The terms used herein are merely used to describe various examples, and are not intended to limit the disclosure. The singular forms are intended to include the plural forms unless the context clearly indicates otherwise. The terms "comprise," "include," and "have" indicate the presence of the described features, numbers, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, numbers, operations, components, elements, and / or combinations thereof.

[0035] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Terms such as, for example, "conventionally," "typically," "commonly," and the like, should be interpreted not to unduly limit the scope of the claims. Unless specifically set forth herein, none of the terms should be construed as indicating any special relationship as between any terms so used.

[0036] Further, in the description of the examples, detailed descriptions of related structures or functions which are considered to be obvi ous in the related art will be omitted.

[0037] Reference will now be made in detail to the embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. The embodiments will be explained by referring to the drawings in order to explain the present disclosure.

[0038] Reference will now be made in detail to the embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. The embodiments will be explained by referring to the drawings in order to explain the present disclosure. Figures 1 to 4 The adaptive yaw control method and device of a wind turbine according to embodiments of the present disclosure will be described in detail below.

[0039] Figure 1 is a flow chart illustrating the adaptive yaw control method 100 of a wind turbine according to embodiments of the present disclosure.

[0040] Reference will now be made in detail to the embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. The embodiments will be explained by referring to the drawings in order to explain the present disclosure. Figure 1 At step S101, the turbine operating data and the meteorological warning wind speed of the wind turbine are acquired.

[0041] For example, the meteorological warning wind speed can come from any one of the meteorological forecast data sources worldwide. As an example, the meteorological forecast data sources can include, but are not limited to, the China Meteorological Administration (CMA), the European Centre (EC), and the like.

[0042] According to embodiments of the present disclosure, at step S102, it is identified whether the wind turbine has failed based on the turbine operating data.

[0043] According to embodiments of the present disclosure, at step S103, in response to identifying that the wind turbine has not failed, it is determined whether the meteorological warning wind speed is greater than a first preset wind speed.

[0044] Here, the first preset wind speed can represent the maximum wind speed that the windward leading edge of the wind turbine can reach against the wind. As an example, the first preset wind speed can have a value range between a preset wind speed Vstart and a preset wind speed Vend, where Vstart can be, for example but not limited to, V1 (i.e., a typhoon wind speed occurring once every 1 year), and Vend can be, for example but not limited to, V20 (i.e., a typhoon wind speed occurring once every 20 years), V25 (i.e., a typhoon wind speed occurring once every 25 years), V50 (i.e., a typhoon wind speed occurring once every 50 years).

[0045] Here, the preset wind speed Vstart and the preset wind speed Vend are not limited to the above examples, and can be set to various wind speed values as needed and satisfy the preset wind speed Vend greater than the preset wind speed Vstart. Hereinafter, in order to facilitate description, the subsequent elaboration is taken as an example that the value range of the first preset wind speed can be between V1 and V50.

[0046] According to an embodiment of the present disclosure, in step S104, in response to the meteorological warning wind speed being less than or equal to the first preset wind speed, yaw control based on a first mode is performed on the wind turbine.

[0047] Here, the first mode indicates a first yaw operating state of the upwind front edge against the wind. For example, the first mode can be a first anti-typhoon combination mode for anti-typhoon, and the front edge against the wind can be implemented in a precise wind-against mode or a biased wind-against mode.

[0048] Further, in the case where the wind turbine is running in the first mode, the wind turbine has the ability to rush electricity (power generation condition), and in this mode, the wind turbine can rush power generation without load shedding since the meteorological warning wind speed has not reached the first preset wind speed. Through this mode, the power generation benefit of the wind turbine can be improved. For example, the rush electricity can be taken as an example to re-cut in rush electricity.

[0049] As an example, step S104 can further include: in response to the meteorological warning wind speed being less than or equal to the first preset wind speed and the current unit running wind speed being less than the first yaw switching wind speed, performing yaw control based on the first mode on the wind turbine, so that the wind turbine can run in the first anti-typhoon mode.

[0050] Here, the first yaw switching wind speed can represent a critical wind speed for switching from the downwind to the upwind.

[0051] Through the mode selection strategy of the present disclosure, it can be ensured that in the case where the meteorological warning wind speed does not exceed the preset maximum resistance wind speed, the rush electricity can be re-cut, so that the wind turbine can fully rush electricity in the case of typhoon or extreme V50, thereby improving the benefit.

[0052] According to an embodiment of the present disclosure, in step S105, in response to the meteorological warning wind speed being greater than the first preset wind speed, yaw control based on a second mode is performed on the wind turbine.

[0053] Here, the second mode indicates a second yaw operating state of the downwind trailing edge against the wind. For example, the second mode can be a second anti-typhoon combination mode for anti-typhoon, and the trailing edge against the wind can be implemented in a precise wind-against mode or a biased wind-against mode.

[0054] Further, in the case that the wind turbine is operating in the second mode, the functions of load reduction (e.g., load reduction for wind speed) and ensuring the safety of the turbine are mainly realized, and at this time, since the meteorological warning wind speed has exceeded the first preset wind speed, the wind turbine does not perform the power grabbing operation, because there is a high risk in the power grabbing operation under this condition.

[0055] Optionally, the step of performing yaw control based on the second mode on the wind turbine at step S105 can include: in the case that the operating power of the wind turbine meets a predetermined condition, performing downwind yaw alignment of the wind turbine, so that the blade pitch angle of the wind turbine is switched from the first blade pitch angle combination to the second blade pitch angle combination.

[0056] Here, the above-mentioned predetermined condition can represent a power condition that needs to be met to enable the wind turbine to perform subsequent operation to realize yaw control.

[0057] For example, the first blade pitch angle combination is an optimized pitch angle combination of the blades corresponding to the yaw alignment, and the second blade pitch angle combination is an optimized pitch angle combination of the blades corresponding to the tail edge alignment.

[0058] Further, as an example, for different groups of pitch angle combinations under each alignment state (e.g., leading edge alignment, bias alignment, tail edge alignment) of the wind turbine, the corresponding values between the respective corresponding pitch angles of the different groups can be equal, partially equal, or all unequal.

[0059] As an example, step S105 can include step S1051 and step S1052.

[0060] At step S1051, the operating wind speed of the wind turbine is obtained.

[0061] At step S1052, in response to the meteorological warning wind speed being greater than the first preset wind speed and the current operating wind speed of the wind turbine being greater than or equal to the first yaw switching wind speed, yaw control based on the second mode is performed on the wind turbine, so that the wind turbine can operate in the second anti-tai mode.

[0062] According to an embodiment of the present disclosure, after step S105, the adaptive yaw control method 100 can further include steps S107-S109 (not shown).

[0063] At step S107, in response to the current operating wind speed being less than the second yaw switching wind speed for a preset time length, it is determined whether the meteorological warning wind speed is less than the first preset wind speed. Here, the second yaw switching wind speed can represent a critical wind speed for switching from the upwind to the downwind.

[0064] As an example, the adaptive yaw control method 100 can further comprise: in response to the condition that the current operating wind speed of the wind turbine is less than the second yaw switching wind speed for the preset time duration not being met, maintaining the yaw control of the wind turbine based on the second mode being performed.

[0065] Further, the second yaw switching wind speed can be equal to the first yaw switching wind speed as described above, but is not limited thereto, and the second yaw switching wind speed can also be different from the first yaw switching wind speed, for example, the second yaw switching wind speed can be slightly less than the first yaw switching wind speed, and the difference between the two is very small.

[0066] At step S108, in response to the weather warning wind speed being less than the first preset wind speed, the yaw control of the wind turbine based on the first mode is performed.

[0067] Further, step S108 can specifically comprise: in response to the weather warning wind speed being less than the first preset wind speed, performing upwind yaw of the wind turbine so that the blade pitch angle of the wind turbine is switched from the second blade pitch angle combination to the first blade pitch angle combination.

[0068] At step S109, in response to the weather warning wind speed being greater than or equal to the first preset wind speed, the yaw control of the wind turbine based on the second mode is maintained.

[0069] According to an embodiment of the present disclosure, at step S106, in response to identifying that the wind turbine has a fault at step S102, other operations described below, i.e., steps S1061 to S1063, are performed.

[0070] At step S1061, the operating wind speed of the wind turbine is obtained.

[0071] At step S1062, in response to identifying that the wind turbine has a fault and the current operating wind speed of the wind turbine is less than or equal to a preset fault maintenance wind speed, the yaw control of the wind turbine based on a third mode is performed.

[0072] At step S1063, in response to identifying that the wind turbine has a fault and the current operating wind speed of the wind turbine is greater than the preset fault maintenance wind speed, the yaw control of the wind turbine based on a fourth mode is performed.

[0073] Here, the third mode indicates a third yaw operating state of up / down wind alignment for fault maintenance, and the fourth mode indicates a fourth yaw operating state of up / down wind alignment for fault resistance.

[0074] For example, the third mode described above is a mode in which there is a fault and the fault maintenance condition is met, that is, in this mode, the fault of the wind turbine identified at present is a fault that can be maintained to restore to a normal state.

[0075] For example, the fourth mode mentioned above is a typhoon-resistant operation mode with propeller jamming and / or yaw faults. In other words, in this mode, the faults currently identified in the wind turbine cannot be maintained to a normal state, and the wind turbine will continue to operate under fault conditions.

[0076] Furthermore, the first to fourth modes described above all represent the operating states of the wind turbine. The selection strategy for these four modes proposed in this disclosure can effectively reduce the constraints imposed by, for example, V50 wind speeds and different typhoon wind speeds on the overall turbine design load, and can improve the reliability of the turbine.

[0077] By implementing yaw control under different typhoon conditions based on the maximum design wind speed achievable under different typhoon resistance modes, the actual load on the wind turbine under typhoon conditions can be reduced, thereby reducing the design cost of various components of the unit and increasing the reliability of the unit.

[0078] The following is based on reference Figure 2 Let's take an example to illustrate the adaptive yaw control method 100 for wind turbines as described above. Figure 2 This is a flowchart illustrating an example of an adaptive yaw control method for a wind turbine according to an embodiment of the present disclosure.

[0079] As an example, an example of an adaptive yaw control method for wind turbines may include the following steps 1) to 9):

[0080] In step S201, it is first determined whether there is a fault in the wind turbine (e.g., propeller jamming and / or yaw fault).

[0081] In frame S202, if a fault is detected in the wind turbine, the fault maintenance mode or the fault typhoon resistance mode is executed. The specific execution mode is determined by referring to steps S1062 and S1063 above, which will not be repeated here.

[0082] In step S203, if it is determined that there is no fault in the wind turbine, it is determined whether the weather warning wind speed (indicating the future predicted wind speed) is greater than the preset wind speed (V maximum resistance as shown in the figure).

[0083] Next, if it is determined that the wind speed in the weather warning is greater than the preset wind speed, then in step S205 it is further determined whether the wind speed of the unit operation (indicating the current actual wind speed) has reached the first yaw switching wind speed (V yaw switching wind speed 1 as shown in the figure); otherwise, the wind turbine unit performs upwind forward edge wind alignment (as shown in box S204).

[0084] As an example, leading-edge convection can be achieved using either precise convection mode or offset convection.

[0085] In the present disclosure, the execution processes from block S201 to block S202, and from block S203 and block S205 to block S204 respectively are not described limitatively. For example, in the execution processes from block S203 and block S205 to block S204, it is not necessary to reach the running state as shown in block S204 with the execution actions defined in block S215 and block S216, but in the execution processes, the above-mentioned running state can also be reached with other feasible actions as needed.

[0086] In step S206, in the case where it is determined from step S205 that the wind speed of the operating wind turbine reaches the first yaw switching wind speed, it indicates that the subsequent downwind trailing edge alignment will be performed, and in this case, it is necessary to determine whether the power grid is powered off to provide power guarantee for the subsequent operation to be performed.

[0087] As an example, the trailing edge alignment can be implemented by using the precise alignment mode or the offset alignment.

[0088] Next, if it is determined that the power grid is powered off at this time, a standby yaw strategy is started in step S207, and a backup power source or a diesel generator is automatically switched in step S209 to restore power supply of the power grid; otherwise, a non-backup yaw strategy is started in step S208.

[0089] Here, the present disclosure does not specifically limit the standby yaw strategy / non-standby yaw strategy, and any related strategy available in the art can be used to implement it.

[0090] In steps S210 and S211, under the condition that the power supply of the power grid is ensured, the wind turbine performs clockwise / counter-clockwise yaw to the downwind direction (as shown in block S210) to switch the posture to X2-Y2-Z2 (as shown in block S211) to achieve the trailing edge alignment (as shown in block S212).

[0091] Here, X1-Y1-Z1 represents the optimal pitch angle combination of the three blades in the yaw process, and X2-Y2-Z2 represents the optimal pitch angle combination of the three blades in the trailing edge alignment. It should be noted that in the present disclosure, each pitch angle in "X1-Y1-Z1" and "X2-Y2-Z2" is not limited to a unique set of values, but can include multiple combinations of values composed of multiple values.

[0092] In step S213, after achieving block S212, it is further determined whether the operating wind speed of the wind turbine is less than the second yaw switching wind speed (as shown in Vyaw switching wind speed 2) and lasts for a predetermined period of time (for example, 30 minutes), if the condition is met, step S214 is performed, otherwise, return to block S212 to maintain the running state as shown in S212.

[0093] At step S214, it is judged whether the corresponding meteorological warning wind speed is less than the preset wind speed. If yes, the blade posture is switched from X2-Y2-Z2 to X1-Y1-Z1 (as shown in block S215), and the clockwise / anticlockwise yaw to the upwind direction is performed in the posture of X1-Y1-Z1 (as shown in block S216), so as to realize the upwind direction leading edge wind alignment (as shown in block S204).

[0094] Figure 3 is a block diagram illustrating an adaptive yaw control device 300 of a wind turbine according to an embodiment of the present disclosure.

[0095] With reference to Figure 3 The adaptive yaw control device 300 of the wind turbine according to the embodiment of the present disclosure can include a data acquisition module 310, a fault identification module 320, and a yaw control module 330.

[0096] According to the embodiment of the present disclosure, the data acquisition module 310 is configured to acquire turbine operation data and a meteorological warning wind speed of the wind turbine. As an example, the turbine operation data can include various data involved in the operation process of the wind turbine.

[0097] In addition, the data acquisition module 310 can also be configured to acquire a turbine operation wind speed of the wind turbine.

[0098] According to the embodiment of the present disclosure, the fault identification module 320 is configured to identify whether the wind turbine has a fault based on the turbine operation data.

[0099] According to the embodiment of the present disclosure, in the case where it is identified by the fault identification module 320 that the wind turbine has a fault, the yaw control module 330 can perform the following operations: in response to the current turbine operation wind speed being less than or equal to a preset fault maintenance wind speed, performing the yaw control based on a third mode for the wind turbine; in response to the current turbine operation wind speed being greater than the preset fault maintenance wind speed, performing the yaw control based on a fourth mode for the wind turbine.

[0100] Here, the third mode indicates a third yaw operating state of the up / down wind direction leading edge wind alignment for fault maintenance, and the fourth mode indicates a fourth yaw operating state of the up / down wind direction leading edge wind alignment for fault resistance.

[0101] According to the embodiment of the present disclosure, the yaw control module 330 is configured to: in response to identifying that the wind turbine has no fault, determine whether the meteorological warning wind speed is greater than a first preset wind speed; in response to the meteorological warning wind speed being less than or equal to the first preset wind speed, performing the yaw control based on a first mode for the wind turbine; in response to the meteorological warning wind speed being greater than the first preset wind speed, performing the yaw control based on a second mode for the wind turbine.

[0102] Here, the first mode indicates a first yaw operating state for the upwind leading edge against the wind, and the second mode indicates a second yaw operating state for the downwind trailing edge against the wind.

[0103] As an example, the operation of the yaw control module 330 performing yaw control of the wind turbine based on the first mode in response to the meteorological warning wind speed being less than or equal to the first preset wind speed can include: in response to the meteorological warning wind speed being less than or equal to the first preset wind speed and the current turbine operating wind speed being less than the first yaw switching wind speed, performing yaw control of the wind turbine based on the first mode to enable the wind turbine to operate in the first anti-tai mode.

[0104] As an example, the operation of the yaw control module 330 performing yaw control of the wind turbine based on the second mode in response to the meteorological warning wind speed being greater than the first preset wind speed can include: obtaining a turbine operating wind speed of the wind turbine; and in response to the meteorological warning wind speed being greater than the first preset wind speed and the current turbine operating wind speed being greater than or equal to the first yaw switching wind speed, performing yaw control of the wind turbine based on the second mode to enable the wind turbine to operate in the second anti-tai mode.

[0105] According to an embodiment of the present disclosure, the operation of the yaw control module 330 performing yaw control of the wind turbine based on the second mode can include: in a case where operating power of the wind turbine satisfies a predetermined condition, performing downwind yaw against the wind of the wind turbine, so that a blade pitch angle of the wind turbine is switched from a first blade pitch angle combination to a second blade pitch angle combination.

[0106] Here, the first blade pitch angle combination is an optimized pitch angle combination of the blades corresponding to the yaw against the wind, and the second blade pitch angle combination is an optimized pitch angle combination of the blades corresponding to the trailing edge against the wind.

[0107] As an example, after the operation of the yaw control module 330 performing yaw control of the wind turbine based on the second mode in response to the meteorological warning wind speed being greater than the first preset wind speed, the yaw control module 330 can be further configured to: in response to the current turbine operating wind speed being less than the second yaw switching wind speed for a preset duration, determine whether the meteorological warning wind speed is less than the first preset wind speed; in response to the meteorological warning wind speed being less than the first preset wind speed, perform yaw control of the wind turbine based on the first mode; and in response to the meteorological warning wind speed being greater than or equal to the first preset wind speed, maintain the performance of yaw control of the wind turbine based on the second mode.

[0108] Optionally, in response to the weather warning wind speed being less than the first preset wind speed, the yaw control module 330 can perform the yaw control operation on the wind turbine based on the first mode can include: in response to the weather warning wind speed being less than the first preset wind speed, performing upwind yaw on the wind turbine so that the blade pitch angle of the wind turbine is switched from the second blade pitch angle combination to the first blade pitch angle combination.

[0109] Optionally, the yaw control module 330 can be further configured to: in response to the current unit operating wind speed being less than the second yaw switching wind speed for a preset time duration, keep performing the yaw control on the wind turbine based on the second mode.

[0110] It should be noted that the operations performed by the above-mentioned various modules can be similar to those described with reference to the adaptive yaw control method, which will not be described here again. Figure 1

[0111] Figure 4 is a block diagram illustrating a computer device 400 according to an embodiment of the present disclosure.

[0112] With reference to Figure 4 , the computer device 400 according to an embodiment of the present disclosure can include a processor 410 and a memory 420. The processor 410 can include, but is not limited to, a central processing unit (CPU), a digital signal processor (DSP), a microcomputer, a field programmable gate array (FPGA), a system on chip (SoC), a microprocessor, an application specific integrated circuit (ASIC), etc. The memory 420 can store computer executable instructions to be executed by the processor 410. The memory 420 includes a high-speed random access memory and / or a non-volatile computer readable storage medium. When the processor 410 executes the computer executable instructions stored in the memory 420, the adaptive yaw control method as described above can be implemented.

[0113] ​The adaptive yaw control method according to embodiments of the disclosure can be written as computer programs / instructions to form a computer program product and stored on a computer readable storage medium. When the computer programs / instructions are executed by a processor, the adaptive yaw control method as described above can be implemented. When the instructions in the computer readable storage medium are executed by the processor of the electronic device / server, the electronic device / server is enabled to perform the adaptive yaw control method as described above. Examples of the computer readable storage medium include read only memory (ROM), random access programmable read only memory (PROM), electrically erasable programmable read only memory (EEPROM), random access memory (RAM), dynamic random access memory (DRAM), static random access memory (SRAM), flash memory, non-volatile memory, CD-ROM, CD-R, CD+R, CD-RW, CD+RW, DVD-ROM, DVD-R, DVD+R, DVD-RW, DVD+RW, DVD-RAM, BD-ROM, BD-R, BD-R LTH, BD-RE, Blu-ray or optical disk memory, hard disk drive (HDD), solid state disk (SSD), card memory (such as a multimedia card, a secure digital (SD) card or an extreme digital (XD) card), magnetic tape, floppy disk, magneto-optical data storage device, optical data storage device, hard disk, solid state disk, and any other device configured to store a computer program in a non-transitory manner and provide the computer program to a processor or computer so that the processor or computer can execute the computer program. In one example, the computer program and any associated data, data files and data structures are distributed over a networked computer system so that the computer program and any associated data, data files and data structures are stored, accessed and executed in a distributed manner by one or more processors or computers.

[0114] The adaptive yaw control method and device of a wind turbine according to embodiments of the disclosure reduces the actual load of the wind turbine under a typhoon by using an adaptive yaw control strategy based on a weather warning, realizes adaptive yaw load reduction protection of the wind turbine under different wind speed scenarios, thereby reducing the design cost of each component of the wind turbine, and improves the reliability of the wind turbine.

[0115] On the other hand, by using the adaptive yaw control strategy based on the weather warning, it can be ensured that the wind turbine can cut in to generate electricity again under the scenario of not exceeding the maximum resistance wind speed, and the wind turbine can also realize sufficient power grabbing under a typhoon or an extreme V50, thereby improving the efficiency.

[0116] While certain embodiments of the disclosure have been disclosed and described, it will be apparent to those skilled in the art that changes and modifications can be made without departing from the conception and spirit of the disclosure, which is defined by the claims and their equivalents.

Claims

1. A method of adaptive yaw control of a wind turbine, characterized in that, The adaptive yaw control method comprises: obtaining wind turbine operating data and a meteorological warning wind speed of a wind turbine; identifying whether the wind turbine fails based on the wind turbine operating data; in response to identifying that the wind turbine does not fail, determining whether the meteorological warning wind speed is greater than a first preset wind speed; in response to the meteorological warning wind speed being less than or equal to the first preset wind speed, performing yaw control based on a first mode for the wind turbine; in response to the meteorological warning wind speed being greater than the first preset wind speed, performing yaw control based on a second mode for the wind turbine, wherein the first mode indicates a first yaw operating state of an upwind leading edge against the wind, and the second mode indicates a second yaw operating state of a downwind trailing edge against the wind.

2. The adaptive yaw control method of claim 1, wherein, The step of performing yaw control based on the second mode for the wind turbine in response to the meteorological warning wind speed being greater than the first preset wind speed comprises: obtaining a current wind turbine operating wind speed of the wind turbine; in response to the meteorological warning wind speed being greater than the first preset wind speed and the current wind turbine operating wind speed being greater than or equal to a first yaw switching wind speed, performing yaw control based on the second mode for the wind turbine to enable the wind turbine to operate in a second typhoon-resistant mode, wherein the first yaw switching wind speed represents a critical wind speed for switching from the upwind to the downwind.

3. The adaptive yaw control method of claim 2, wherein, The step of performing yaw control based on the first mode for the wind turbine in response to the meteorological warning wind speed being less than or equal to the first preset wind speed comprises: in response to the meteorological warning wind speed being less than or equal to the first preset wind speed and the current wind turbine operating wind speed being less than the first yaw switching wind speed, performing yaw control based on the first mode for the wind turbine to enable the wind turbine to operate in a first typhoon-resistant mode.

4. The adaptive yaw control method of claim 2, wherein, The step of performing yaw control based on the second mode for the wind turbine comprises: in a case where operating power of the wind turbine meets a predetermined condition, performing downwind yaw against the wind for the wind turbine, so that a blade pitch angle of the wind turbine is switched from a first blade pitch angle combination to a second blade pitch angle combination, wherein the first blade pitch angle combination is an optimized blade pitch angle combination corresponding to yaw against the wind, and the second blade pitch angle combination is an optimized blade pitch angle combination corresponding to trailing edge against the wind.

5. The adaptive yaw control method of claim 4, wherein, After the step of performing yaw control based on the second mode for the wind turbine in response to the meteorological warning wind speed being greater than the first preset wind speed, the adaptive yaw control method further comprises: in response to the current wind turbine operating wind speed being less than a second yaw switching wind speed for a preset time length, determining whether the meteorological warning wind speed is less than the first preset wind speed; in response to the meteorological warning wind speed being less than the first preset wind speed, performing yaw control based on the first mode for the wind turbine; in response to the meteorological warning wind speed being greater than or equal to the first preset wind speed, maintaining yaw control based on the second mode for the wind turbine, wherein the second yaw switching wind speed represents a critical wind speed for switching from the downwind to the upwind.

6. The adaptive yaw control method of claim 5, wherein, In response to the meteorological warning wind speed being less than the first preset wind speed, the step of performing yaw control based on the first mode for the wind turbine includes: In response to the meteorological warning wind speed being less than the first preset wind speed, performing upwind yaw alignment for the wind turbine such that the blade pitch angle of the wind turbine is switched from the second blade pitch angle combination to the first blade pitch angle combination.

7. The adaptive yaw control method of claim 5, wherein, The adaptive yaw control method further includes: In response to the current unit operating wind speed being less than the second yaw switching wind speed for a preset time duration, maintaining the performance of yaw control based on the second mode for the wind turbine.

8. The adaptive yaw control method of claim 1, wherein, The adaptive yaw control method further includes: Obtaining a unit operating wind speed of the wind turbine; In response to identifying that the wind turbine has a fault and the current unit operating wind speed being less than or equal to a preset fault maintenance wind speed, performing yaw control based on a third mode for the wind turbine; In response to identifying that the wind turbine has a fault and the current unit operating wind speed being greater than the preset fault maintenance wind speed, performing yaw control based on a fourth mode for the wind turbine, wherein the third mode indicates a third yaw operating state of up / down wind alignment for fault maintenance, and the fourth mode indicates a fourth yaw operating state of up / down wind alignment for fault anti-typhoon.

9. An adaptive yaw control apparatus for a wind turbine generator unit, characterized by The adaptive yaw control device includes: a data acquisition module configured to obtain unit operating data of a wind turbine and a meteorological warning wind speed; a fault identification module configured to identify whether the wind turbine has a fault based on the unit operating data; a yaw control module configured to, in response to identifying that the wind turbine does not have a fault, determine whether the meteorological warning wind speed is greater than a first preset wind speed, in response to the meteorological warning wind speed being less than or equal to the first preset wind speed, perform yaw control based on a first mode for the wind turbine, and in response to the meteorological warning wind speed being greater than the first preset wind speed, perform yaw control based on a second mode for the wind turbine, wherein the first mode indicates a first yaw operating state of upwind leading edge alignment for anti-typhoon, and the second mode indicates a second yaw operating state of downwind trailing edge alignment for anti-typhoon.

10. A computer program product, characterised in that, The computer program product includes computer programs / instructions that, when executed by a processor, implement the adaptive yaw control method according to any one of claims 1 to 8.

11. A computer device, comprising: includes: at least one processor; at least one memory storing computer executable instructions, wherein the computer executable instructions, when executed by the at least one processor, cause the at least one processor to perform the adaptive yaw control method according to any one of claims 1 to 8.

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