Yaw Cable Management Control Method, Device, Equipment and Wind Turbine

Abstract

The present invention provides a cable-unwinding control method, device, equipment and wind turbine for a wind turbine generator set. The method includes: predicting the cable-unwinding data of the wind turbine generator set within a target time period; determining the cable-twisting advance amount of the wind turbine generator set according to the cable-unwinding data; and performing early cable-unwinding on the wind turbine generator set according to the cable-twisting advance amount. By performing early cable-unwinding in the way of pre-determining the cable-twisting advance amount, the cable-unwinding times of the wind turbine generator set can be effectively reduced, thereby increasing the power generation amount of the wind turbine generator set and effectively improving the power generation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of cable-unwinding control for wind turbines, and particularly to a cable-unwinding control method, device, equipment and wind turbine for wind turbines. Background Art

[0002] During the actual operation of a wind power generating unit (abbreviation: wind turbine), it will be in a continuous cable-twisting state. The change of the wind direction may cause the cable-twisting angle of the wind turbine to continuously increase. If the cable-twisting angle remains at a relatively large angle for a long time, it may have a certain impact on the power cable and even may affect the safe operation of the wind turbine. For the traditional software cable-twisting protection method, mostly based on the current cable-twisting angle value of the power cable, the reverse cable-unwinding angle value of the wind power generating unit is determined, and then the cable-unwinding control of the cable is carried out.

[0003] However, the cable-twisting protection method that performs cable-unwinding operation after the cable is twisted to the preset angle cannot well reduce the cable-unwinding time, resulting in relatively low power generation efficiency of the wind turbine. Summary of the Invention

[0004] The present invention provides a cable-unwinding control method, device, equipment and wind turbine for wind turbines, so as to solve the defect that the cable-unwinding control in the prior art leads to low power generation efficiency of the wind turbine, and realize effectively improving the power generation efficiency of the wind turbine by means of early cable-unwinding.

[0005] The present invention provides a cable-unwinding control method for wind turbines, including:

[0006] Predicting the cable-unwinding data of the wind turbine within a target time period;

[0007] Determining the cable-twisting advance amount of the wind turbine according to the cable-unwinding data;

[0008] Performing early cable-unwinding on the wind turbine according to the cable-twisting advance amount.

[0009] According to the cable-unwinding control method for wind turbines provided by the present invention, the cable-unwinding data includes the number of left cable-unwinding events and the number of right cable-unwinding events;

[0010] The determining the cable-twisting advance amount of the wind turbine according to the cable-unwinding data includes:

[0011] Calculating the ratio of the number of left cable-unwinding events to the number of right cable-unwinding events;

[0012] Determining the cable-twisting advance amount according to the relationship between the ratio and a preset parameter.

[0013] According to the cable-unwinding control method for wind turbines provided by the present invention, the determining the cable-twisting advance amount according to the relationship between the ratio and a preset parameter includes:

[0014] If the ratio is greater than or equal to a first preset parameter, determine that the cable twisting advance amount is a first preset angle value;

[0015] If the ratio is less than or equal to a second preset parameter, determine that the cable twisting advance amount is a second preset angle value;

[0016] If the ratio is greater than or equal to a third preset parameter and less than the first preset parameter, determine that the cable twisting advance amount is a third preset angle value;

[0017] If the ratio is greater than the second preset parameter and less than or equal to a fourth preset parameter, determine that the cable twisting advance amount is a fourth preset angle value;

[0018] If the ratio is greater than the fourth preset parameter and less than the third preset parameter, determine that the cable twisting advance amount is a fifth preset angle value.

[0019] According to a cable untwisting control method for a wind turbine provided by the present invention, the fifth preset angle value is zero;

[0020] After determining that the cable twisting advance amount is a fifth preset angle value, it further includes:

[0021] Perform cable untwisting control on the wind turbine by yawing to face the wind.

[0022] According to a cable untwisting control method for a wind turbine provided by the present invention, the first preset parameter is greater than the third preset parameter, the third preset parameter is greater than the fourth preset parameter, and the fourth preset parameter is greater than the second preset parameter;

[0023] The first preset angle value is greater than the third preset angle value, the third preset angle value is greater than the fourth preset angle value, the fourth preset angle value is greater than the second preset angle value, the third preset angle value is greater than zero, and the fourth preset angle value is less than zero.

[0024] According to a cable untwisting control method for a wind turbine provided by the present invention, the predicted cable untwisting data of the wind turbine within a target time period includes:

[0025] Obtain the historical cable untwisting data of the wind turbine in a time period corresponding to the target time period from the historical database;

[0026] Predict the cable untwisting data of the wind turbine within the target time period according to the historical cable untwisting data.

[0027] According to a cable untwisting control method for a wind turbine provided by the present invention, the predicted cable untwisting data of the wind turbine within a target time period includes:

[0028] Obtain the wind force information and wind direction information within the target time period through weather prediction;

[0029] Predict the cable-unwinding data of the wind turbine within the target time period according to the wind power information and the wind direction information.

[0030] The present invention also provides a cable-unwinding control device for a wind turbine, including:

[0031] A prediction module, configured to predict the cable-unwinding data of the wind turbine within the target time period;

[0032] A determination module, configured to determine the cable-twisting advance amount of the wind turbine according to the cable-unwinding data;

[0033] A cable-unwinding module, configured to perform early cable-unwinding on the wind turbine according to the cable-twisting advance amount.

[0034] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the steps of any one of the above-mentioned cable-unwinding control methods for a wind turbine are implemented.

[0035] The present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of any one of the above-mentioned cable-unwinding control methods for a wind turbine are implemented.

[0036] The present invention also provides a computer program product, including a computer program. When the computer program is executed by a processor, the steps of any one of the above-mentioned cable-unwinding control methods for a wind turbine are implemented.

[0037] The present invention also provides a wind turbine, which performs cable-unwinding control by using any one of the above-mentioned cable-unwinding control methods for a wind turbine.

[0038] A cable-unwinding control method, device, equipment and wind turbine provided by the present invention. The method includes: predicting the cable-unwinding data of the wind turbine within the target time period; determining the cable-twisting advance amount of the wind turbine according to the cable-unwinding data; performing early cable-unwinding on the wind turbine according to the cable-twisting advance amount. By pre-determining the cable-twisting advance amount for early cable-unwinding, the cable-unwinding times of the wind turbine can be effectively reduced, thereby increasing the power generation of the wind turbine and effectively improving the power generation efficiency. Description of the Drawings

[0039] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0040] Figure 1 is a schematic flow chart of the cable-unwinding control method for a wind turbine provided by the present invention;

[0041] Figure 2 is Figure 1 a detailed schematic diagram of a partial process in

[0042] Figure 3 is a schematic structural diagram of the cable-unwinding control device for a wind turbine provided by the present invention;

[0043] Figure 4 is a schematic structural diagram of the electronic device provided by the present invention. Specific Embodiments

[0044] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0045] The following combines Figures 1-4 to describe a cable-unwinding control method, device, equipment and wind turbine of the present invention.

[0046] Figure 1 is a schematic flow chart of the cable-unwinding control method for a wind turbine provided by the present invention.

[0047] As Figure 1 shown, a cable-unwinding control method for a wind turbine provided by an embodiment of the present invention includes the following steps:

[0048] 101. Predict the cable-unwinding data of the wind turbine within a target time period.

[0049] In a specific implementation process, the time period for which cable-unwinding control is required is defined as the target time period. For example, the target time period is within one month starting from the current time. Of course, one month is only an example. In the specific implementation process, it can be half a month, twenty days or any other arbitrary duration. Predicting the cable-unwinding data of the wind turbine within the target time period means calculating in advance the cable-unwinding data of the wind turbine within the next month. During the operation of the wind turbine, the twisting angle of the wind turbine will continuously increase with the change of the wind direction. Usually, when the twisting angle reaches about 720 degrees, the wind turbine will stop generating electricity and perform automatic cable-unwinding. Calculating the cable-unwinding data in advance can better reduce the number of cable-unwinding times.

[0050] 102. Determine the twisting advance amount of the wind turbine according to the cable-unwinding data.

[0051] Since the cable-unwinding data of the wind turbine in the future target time period has been predicted through the above steps, the cable-twisting advance amount of the wind turbine can be determined according to the cable-unwinding data. Cable-twisting and cable-unwinding are relative. That is, if the wind turbine experiences cable-twisting and the cable-twisting reaches a certain degree, cable-unwinding will be carried out to protect the cable. For example, on the premise of ensuring that the cable-twisting will not cause any damage to the cable, the cable-twisting advance amount can be determined in advance to be within 360 degrees, so that due to the change of the wind direction, the situation of the cable-twisting reaching the limit frequently will not occur. The cable-twisting advance amount refers to the operation of twisting the cable in advance to relieve the cable-unwinding frequency in the target time period. It can also be understood that in the case of the current cable-unwinding, the cable is not completely unwound to 0 degrees, but is unwound in advance to reserve the data in the target time period. For example, if the final cable-unwinding data in the target time period is -180 degrees, the cable-unwinding can be stopped when the current cable-unwinding reaches +180 degrees, so that the number of cable-unwinding times can be effectively reduced in the target time period.

[0052] 103. Perform advance cable-unwinding on the wind turbine according to the cable-twisting advance amount.

[0053] After the cable-twisting advance amount is determined, the wind turbine can be subjected to advance cable-unwinding. Advance cable-unwinding can also be understood as cable-twisting in the opposite direction of future cable-unwinding.

[0054] A cable-unwinding control method for a wind turbine provided in this embodiment includes: predicting the cable-unwinding data of the wind turbine in the target time period; determining the cable-twisting advance amount of the wind turbine according to the cable-unwinding data; performing advance cable-unwinding on the wind turbine according to the cable-twisting advance amount. By performing advance cable-unwinding by pre-determining the cable-twisting advance amount, the number of cable-unwinding times of the wind turbine can be effectively reduced, thereby increasing the power generation of the wind turbine and effectively improving the power generation efficiency.

[0055] Further, on the basis of the above embodiment, the cable-unwinding data in this embodiment includes the number of left cable-unwinding events and the number of right cable-unwinding events. The left cable-unwinding event and the right cable-unwinding event refer to cable-unwinding in two opposite directions, that is, clockwise cable-unwinding and counterclockwise cable-unwinding. It can be defined that the counterclockwise direction corresponding to looking from the side away from the ground to the ground is the left cable-unwinding, and the clockwise direction is the right cable-unwinding. It can also be understood as cable-unwinding in two opposite directions of forward rotation and reverse rotation. Correspondingly, according to the cable-unwinding data, to determine the cable-twisting advance amount of the wind turbine, specifically, it can be: calculating the ratio of the number of left cable-unwinding events to the number of right cable-unwinding events, and determining the cable-twisting advance amount according to the relationship between the ratio and the preset parameter. For example, if the number of left cable-unwinding events in the target time period is defined as x and the number of right cable-unwinding events is defined as y, then the ratio of the number of left cable-unwinding events to the number of right cable-unwinding events can be calculated as x / y, and then the relationship between x / y and the preset parameter is compared. According to the specific relationship between the two, the specific cable-twisting advance amount can be determined.

[0056] Among them, according to the relationship between the ratio and the preset parameters, the twisting advance amount is determined. It can be that if the ratio is greater than or equal to the first preset parameter, the twisting advance amount is determined to be the first preset angle value; if the ratio is less than or equal to the second preset parameter, the twisting advance amount is determined to be the second preset angle value; if the ratio is greater than or equal to the third preset parameter and less than the first preset parameter, the twisting advance amount is determined to be the third preset angle value; if the ratio is greater than the second preset parameter and less than or equal to the fourth preset parameter, the twisting advance amount is determined to be the fourth preset angle value; if the ratio is greater than the fourth preset parameter and less than the third preset parameter, the twisting advance amount is determined to be the fifth preset angle value. Among them, the first preset parameter is greater than the third preset parameter, the third preset parameter is greater than the fourth preset parameter, and the fourth preset parameter is greater than the second preset parameter; the first preset angle value is greater than the third preset angle value, the third preset angle value is greater than the fourth preset angle value, the fourth preset angle value is greater than the second preset angle value, the third preset angle value is greater than zero, the fourth preset angle value is less than zero, and the angle values include specific positive and negative values, that is, +180 degrees is greater than -360 degrees.

[0057] Figure 2 is Figure 1 a detailed schematic diagram of part of the process.

[0058] Specifically, such as Figure 2As shown, the first preset parameter can be 4, the first preset angle value can be +360 degrees, the second preset parameter can be 1 / 4, the second preset angle value can be -360 degrees, the third preset parameter can be 3, the third preset angle value can be +180 degrees, the fourth preset parameter can be 1 / 3, the fourth preset angle value can be -180 degrees, and the fifth preset angle value can be 0 degrees. Corresponding to the left cable-unwinding event and the right cable-unwinding event, the left cable-unwinding angle is a positive angle value and the right cable-unwinding angle is a negative angle value. That is to say, +360 degrees means left cable-unwinding by 360 degrees, and -180 degrees means right cable-unwinding by 180 degrees. That is, determine whether x / y is greater than or equal to 4. When x / y ≥ 4, then determine the cable-twisting advance amount to be +360 degrees. When x / y is less than 4, determine whether x / y is less than 1 / 4. When x / y < 1 / 4, then determine the cable-twisting advance amount to be -360 degrees. When x / y is greater than 1 / 4, determine the relationship between x / y and 3. When 3 ≤ x / y < 4, then determine the cable-twisting advance amount to be +180 degrees. If x / y is not between 3 and 4, then determine the relationship between x / y and 1 / 3 and 1 / 4. If 1 / 3 ≥ x / y ≥ 1 / 4, then cable-unwind in advance to -180 degrees. Otherwise, cable-unwind to 0 degrees. And regardless of how many degrees of advance cable-unwinding, after the advance cable-unwinding is completed, automatic bisection starts. Taking the number line as an example for illustration, first determine several key parameters, namely 1 / 4, 1 / 3, 3, and 4. These four specific parameters divide the number line into five intervals. Then, respectively determine which interval x / y is in, and perform the corresponding advance cable-unwinding for that interval. When x / y is in the middle interval, it means that no advance cable-unwinding is required, that is, the fifth preset angle value is zero. Determine the cable-twisting advance amount to be the fifth preset angle value, and perform cable-unwinding control on the wind turbine through yaw alignment with the wind. Yaw alignment with the wind refers to the automatic wind-alignment cable-unwinding control system of the wind turbine.

[0059] Further, on the basis of the above embodiment, the cable-unwinding data of the wind turbine in the predicted target time period in this embodiment can be the historical cable-unwinding data of the wind turbine in the time period corresponding to the target time period obtained from the historical database; according to the historical cable-unwinding data, predict the cable-unwinding data of the wind turbine in the target time period. For example, obtain the number of left cable-unwinding events and the number of right cable-unwinding events of the wind turbine in the same historical time period in the database. Taking the target time period as one month for illustration, the historical average data in the same period of the previous five years can be obtained, so as to predict the number of left cable-unwinding events and the number of right cable-unwinding events of the wind turbine in the target time period according to the historical cable-unwinding data. The historical database can include the cable-unwinding data of the wind turbine from the start of its establishment and so on.

[0060] Further, based on the above embodiments, in this embodiment, the cable-unwinding data of the wind turbine in the predicted target time period can be obtained by meteorological prediction to acquire the wind force information and wind direction information in the target time period; according to the wind force information and wind direction information, predict the cable-unwinding data of the wind turbine in the target time period. By means of meteorological prediction, information such as wind direction and wind speed in the future target time period is predicted, and thus the cable-unwinding data in the target time period is predicted according to the influence relationship between wind direction and wind speed on the wind turbine. Meteorological prediction includes altitude information, longitude and latitude information, season information, and so on.

[0061] By performing the cable-unwinding operation on the wind turbine in advance, the number of cable-unwinding times can be reduced, the cable wear can be decreased, the self-power consumption of the fan can be reduced, and the time required for cable-unwinding can be shortened, thereby improving the power generation efficiency of the wind turbine, enhancing the fault tolerance of the fan, and updating the measurement of cable torsion.

[0062] Based on the same general inventive concept, the present application also protects a cable-unwinding control device for a wind turbine. The cable-unwinding control device provided by the present invention will be described below. The cable-unwinding control device for a wind turbine described below can be mutually corresponding and referred to the cable-unwinding control method for a wind turbine described above.

[0063] Figure 3 It is a schematic structural diagram of the cable-unwinding control device for a wind turbine provided by the present invention.

[0064] As Figure 3 shown, a cable-unwinding control device for a wind turbine provided in this embodiment includes:

[0065] A prediction module 301, configured to predict the cable-unwinding data of the wind turbine in the target time period;

[0066] A determination module 302, configured to determine the cable-twisting advance amount of the wind turbine according to the cable-unwinding data;

[0067] A cable-unwinding module 303, configured to perform early cable-unwinding on the wind turbine according to the cable-twisting advance amount.

[0068] A cable-unwinding control device for a wind turbine provided in this embodiment includes: predicting the cable-unwinding data of the wind turbine in the target time period; determining the cable-twisting advance amount of the wind turbine according to the cable-unwinding data; performing early cable-unwinding on the wind turbine according to the cable-twisting advance amount. By performing early cable-unwinding in the way of pre-determining the cable-twisting advance amount, the number of cable-unwinding times of the wind turbine can be effectively reduced, thereby increasing the power generation amount of the wind turbine and effectively improving the power generation efficiency.

[0069] Further, the cable-unwinding data in this embodiment includes the number of left cable-unwinding events and the number of right cable-unwinding events;

[0070] The determination module 302 is specifically configured to:

[0071] Calculate the ratio of the number of left cable-unwinding events to the number of right cable-unwinding events;

[0072] Determine the cable-twisting advance amount according to the relationship between the ratio and a preset parameter.

[0073] Further, the determination module 302 in this embodiment is specifically further configured to:

[0074] If the ratio is greater than or equal to a first preset parameter, determine that the cable-twisting advance amount is a first preset angle value;

[0075] If the ratio is less than or equal to a second preset parameter, determine that the cable-twisting advance amount is a second preset angle value;

[0076] If the ratio is greater than or equal to a third preset parameter and less than the first preset parameter, determine that the cable-twisting advance amount is a third preset angle value;

[0077] If the ratio is greater than the second preset parameter and less than or equal to a fourth preset parameter, determine that the cable-twisting advance amount is a fourth preset angle value;

[0078] If the ratio is greater than the fourth preset parameter and less than the third preset parameter, determine that the cable-twisting advance amount is a fifth preset angle value.

[0079] Further, the fifth preset angle value in this embodiment is zero; it further includes an automatic wind-aligning module for:

[0080] Perform cable-unwinding control on the wind turbine by yawing to align with the wind.

[0081] Further, the first preset parameter in this embodiment is greater than the third preset parameter, the third preset parameter is greater than the fourth preset parameter, and the fourth preset parameter is greater than the second preset parameter;

[0082] The first preset angle value is greater than the third preset angle value, the third preset angle value is greater than the fourth preset angle value, the fourth preset angle value is greater than the second preset angle value, the third preset angle value is greater than zero, and the fourth preset angle value is less than zero.

[0083] Further, the prediction module 301 in this embodiment is specifically configured to:

[0084] Obtain the historical cable-unwinding data of the wind turbine for a time period corresponding to the target time period from the historical database;

[0085] Predict the cable-unwinding data of the wind turbine within the target time period according to the historical cable-unwinding data.

[0086] Further, the prediction module 301 in this embodiment is specifically configured to:

[0087] Obtain wind force information and wind direction information within a target time period through meteorological prediction;

[0088] Predict the cable-unwinding data of the wind turbine within the target time period according to the wind force information and the wind direction information.

[0089] Based on the same general inventive concept, the present application also protects a wind turbine, and the cable-unwinding control of the wind turbine is performed by using the cable-unwinding control method of the wind turbine in any of the above embodiments.

[0090] Figure 4 It is a schematic structural diagram of the electronic device provided by the present invention.

[0091] As Figure 4 shown, the electronic device may include: a processor 410, a communication interface 420, a memory 430, and a communication bus 440. Among them, the processor 410, the communication interface 420, and the memory 430 complete mutual communication through the communication bus 440. The processor 410 may call the logical instructions in the memory 430 to execute the cable-unwinding control method of the wind turbine, and the method includes: predicting the cable-unwinding data of the wind turbine within a target time period; determining the cable-twisting advance amount of the wind turbine according to the cable-unwinding data; and performing early cable-unwinding on the wind turbine according to the cable-twisting advance amount.

[0092] In addition, when the logical instructions in the above-mentioned memory 430 are implemented in the form of a software functional unit and sold or used as an independent product, they may be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in various embodiments of the present invention. The foregoing storage medium includes: various media such as a USB flash drive, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk, or an optical disc that can store program codes.

[0093] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the cable-unwinding control method for a wind turbine provided by each of the above methods. The method includes: predicting the cable-unwinding data of the wind turbine within a target time period; determining the cable-twisting advance amount of the wind turbine according to the cable-unwinding data; and performing early cable-unwinding on the wind turbine according to the cable-twisting advance amount.

[0094] In another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it is configured to execute the cable-unwinding control method for a wind turbine provided by each of the above methods. The method includes: predicting the cable-unwinding data of the wind turbine within a target time period; determining the cable-twisting advance amount of the wind turbine according to the cable-unwinding data; and performing early cable-unwinding on the wind turbine according to the cable-twisting advance amount.

[0095] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. A person of ordinary skill in the art can understand and implement it without creative efforts.

[0096] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the essence of the above technical solution, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cable-unwinding control method for a wind turbine unit, characterized in that, Including: Predicting the cable-unwinding data of the wind turbine within the target time period; Determining the cable-twisting advance amount of the wind turbine according to the cable-unwinding data; Performing early cable-unwinding on the wind turbine according to the cable-twisting advance amount; The cable-unwinding data includes the number of left cable-unwinding events and the number of right cable-unwinding events; The determining the cable-twisting advance amount of the wind turbine according to the cable-unwinding data includes: Calculating the ratio of the number of left cable-unwinding events to the number of right cable-unwinding events; Determining the cable-twisting advance amount according to the relationship between the ratio and the preset parameter.

2. The cable-unwinding control method for a wind turbine according to claim 1, wherein The determining the cable-twisting advance amount according to the relationship between the ratio and the preset parameter includes: If the ratio is greater than or equal to the first preset parameter, determining the cable-twisting advance amount as the first preset angle value; If the ratio is less than or equal to the second preset parameter, determining the cable-twisting advance amount as the second preset angle value; If the ratio is greater than or equal to the third preset parameter and less than the first preset parameter, determining the cable-twisting advance amount as the third preset angle value; If the ratio is greater than the second preset parameter and less than or equal to the fourth preset parameter, determining the cable-twisting advance amount as the fourth preset angle value; If the ratio is greater than the fourth preset parameter and less than the third preset parameter, determining the cable-twisting advance amount as the fifth preset angle value.

3. The cable-unwinding control method for a wind turbine according to claim 2, wherein, The fifth preset angle value is zero; After determining the cable-twisting advance amount as the fifth preset angle value, further including: Performing cable-unwinding control on the wind turbine by yawing to face the wind.

4. The cable-unwinding control method for a wind turbine according to claim 2, wherein, The first preset parameter is greater than the third preset parameter, the third preset parameter is greater than the fourth preset parameter, and the fourth preset parameter is greater than the second preset parameter; The first preset angle value is greater than the third preset angle value, the third preset angle value is greater than the fourth preset angle value, the fourth preset angle value is greater than the second preset angle value, the third preset angle value is greater than zero, and the fourth preset angle value is less than zero.

5. The cable-unwinding control method for a wind turbine according to any one of claims 1-4, characterized in that The predicting the cable-unwinding data of the wind turbine within the target time period includes: Obtaining the historical cable-unwinding data of the wind turbine in the time period corresponding to the target time period from the historical database; Predicting the cable-unwinding data of the wind turbine within the target time period according to the historical cable-unwinding data.

6. The cable-unwinding control method for a wind turbine according to any one of claims 1-4, characterized in that, The predicting the cable-unwinding data of the wind turbine within the target time period includes: Obtaining the wind force information and wind direction information within the target time period through weather prediction; Predicting the cable-unwinding data of the wind turbine within the target time period according to the wind force information and the wind direction information.

7. A cable-unwinding control device for a wind turbine, characterized in that, Including: A prediction module for predicting the cable-unwinding data of the wind turbine within the target time period; A determination module for determining the cable-twisting advance amount of the wind turbine according to the cable-unwinding data; A cable-unwinding module for performing early cable-unwinding on the wind turbine according to the cable-twisting advance amount; The cable-unwinding data includes the number of left cable-unwinding events and the number of right cable-unwinding events; The determination module is specifically configured to: calculate the ratio of the number of left cable-unwinding events to the number of right cable-unwinding events; determine the cable-twisting advance amount according to the relationship between the ratio and the preset parameter.

8. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the wind turbine cable-unwinding control method according to any one of claims 1 to 6.

9. A wind turbine, characterized in that, The cable-unwinding control of a wind turbine generator set is performed by using the cable-unwinding control method according to any one of claims 1 to 6.

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