CN114412709A - Wind turbine unwinding control method, device, equipment and wind turbine - Google Patents

Abstract

The present invention provides a control method, device, equipment and wind turbine for decoupling a wind turbine. The method includes: predicting the decoupling data of the wind turbine in a target time period; and determining the twisting advance of the wind turbine according to the decoupling data. According to the twist advance amount, the wind turbines are uncoated in advance, and the twist advance is determined in advance, so that the uncoiling times of the wind turbine can be effectively reduced, thereby increasing the number of wind turbines. The power generation of the wind turbine can effectively improve the power generation efficiency.

Description

Wind turbine unwinding control method, device, equipment and wind turbine

technical field

The invention relates to the technical field of unwinding control of wind turbines, in particular to a method, device, equipment and wind turbines for controlling unwinding of wind turbines.

Background technique

The wind turbine (referred to as: wind turbine) will be in a state of continuous twisting of the cable during the actual operation. The change of the wind direction may cause the twisted cable angle of the wind turbine to continue to increase. Power cables have a certain impact, and may even affect the safe operation of wind turbines. The traditional software twisted cable protection method is mostly based on the current value of the twisted cable of the power cable to determine the reverse unwinding angle value of the wind turbine, and then control the cable unwinding.

However, the twisting protection method in which the unwinding operation is performed after the cables are twisted to a preset angle cannot reduce the unwinding time very well, resulting in a relatively low power generation efficiency of the wind turbine.

SUMMARY OF THE INVENTION

The present invention provides a control method, device, equipment and wind turbine for unwinding a wind turbine, which are used to solve the defect of low power generation efficiency of the wind turbine caused by the unwinding control in the prior art, and realize that the wind turbine can be effectively improved by unwinding in advance. power generation efficiency.

The present invention provides a method for controlling the unwinding of a wind turbine, comprising:

Predict the decoupling data of wind turbines within the target time period;

determining the torsion advance of the wind turbine according to the decoupling data;

According to the torsion advance, the wind turbines are uncoupled in advance.

According to a method for controlling uncoupling of wind turbines provided by the present invention, the uncoupling data includes the number of left uncoupling events and the number of right uncoupling events;

The determining of the torsion advance of the wind turbine according to the decoupling data includes:

calculating the ratio of the number of times of uncoupling the left to the number of times of uncoupling the right;

The torque advance is determined according to the relationship between the ratio and the preset parameter.

According to a method for controlling unwinding of a wind turbine provided by the present invention, determining the torque advance 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 that the torque advance is the first preset angle value;

If the ratio is less than or equal to a second preset parameter, determining that the torque advance is a 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 that the torque advance is a 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 that the torque advance is a fourth preset angle value;

If the ratio is greater than the fourth preset parameter and less than the third preset parameter, the torque advance is determined to be a fifth preset angle value.

According to the control method for unwinding a wind turbine set provided by the present invention, the fifth preset angle value is zero;

After the determining that the torque advance is the fifth preset angle value, the method further includes:

The wind turbine is controlled by yaw against the wind for uncoupling.

According to a method for controlling unwinding of a wind turbine set 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 fourth preset parameter. The 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, and the fourth preset angle value is greater than the second preset angle value. Setting an angle value, the third preset angle value is greater than zero, and the fourth preset angle value is less than zero.

According to a method for controlling uncoiling of wind turbines provided by the present invention, the uncoupling data of the wind turbines in the predicted target time period includes:

Obtain the historical decoupling data of the wind turbine in the time period corresponding to the target time period in the historical database;

According to the historical decoupling data, the decoupling data of the wind turbine in the target time period is predicted.

According to a method for controlling uncoiling of wind turbines provided by the present invention, the uncoupling data of the wind turbines in the predicted target time period includes:

Obtain wind information and wind direction information within the target time period through meteorological prediction;

According to the wind information and the wind direction information, the uncoupling data of the wind turbine in the target time period is predicted.

The present invention also provides a wind turbine unwinding control device, comprising:

Prediction module, used to predict the decoupling data of wind turbines in the target time period;

a determining module, configured to determine the torsion advance of the wind turbine according to the decoupling data;

A decoupling module is used for decoupling the wind turbine in advance according to the torsion advance amount.

The present invention also provides an electronic device, comprising a memory, a processor and a computer program stored in the memory and running on the processor, when the processor executes the program, the solution of the wind turbine generator as described in any of the above-mentioned solutions is realized when the processor executes the program. Steps of the cable control method.

The present invention also provides a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the steps of any one of the above-mentioned control methods for uncoiling a wind turbine.

The present invention also provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of any one of the above-mentioned methods for controlling uncoiling of a wind turbine.

The present invention also provides a wind turbine, which adopts the unwinding control method for a wind turbine as described in any one of the above to perform de-cable control.

The invention provides a control method, device, equipment and wind turbine for unwinding a wind turbine. The method includes: predicting the unwinding data of the wind turbine in a target time period; advance; according to the torsion advance, the wind turbines are uncoated in advance, and the uncoiling is performed in advance by predetermining the torsion advance, so that the number of uncoiling times of the wind turbine can be effectively reduced, thereby Increase the power generation of the wind turbine and effectively improve the power generation efficiency.

Description of drawings

In order to explain the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are the For some embodiments of the invention, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the schematic flow chart of the control method for unwinding the wind turbine provided by the present invention;

Fig. 2 is a detailed schematic diagram of part of the process flow in Fig. 1;

3 is a schematic structural diagram of a wind turbine unwinding control device provided by the present invention;

FIG. 4 is a schematic structural diagram of an electronic device provided by the present invention.

Detailed ways

In order 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. Obviously, the described embodiments are part of the embodiments of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The following describes a method, device, equipment and a wind turbine for unwinding a wind turbine according to the present invention with reference to FIGS. 1 to 4 .

FIG. 1 is a schematic flow chart of a control method for uncoupling a wind turbine provided by the present invention.

As shown in FIG. 1 , a method for controlling unwinding of a wind turbine set provided by an embodiment of the present invention includes the following steps:

101. Predict the decoupling data of the wind turbine in the target time period.

In a specific implementation process, the time period that needs to be de-tethered is defined as the target time period. For example, one month from the current time is the target time period. Of course, one month is just an example. In the specific implementation process, it can be Half a month, twenty days, or any other length of time. Predicting the decoupling data of the wind turbines in the target time period refers to calculating the decoupling data of the wind turbines in the next month in advance. During the operation of the wind turbines, the change of the wind direction will lead to The twisting angle continues to increase. Usually, when the twisting angle reaches about 720 degrees, the wind turbine will stop generating power and perform automatic unwinding. The unwinding data is calculated in advance, which can better reduce the number of unwinding.

102. Determine the torsion advance of the wind turbine according to the decoupling data.

Since the unwinding data of the wind turbines in the future target time period has been predicted through the above steps, the twisting advance of the wind turbines can be determined according to the unwinding data. The twisting and unwinding are relative, that is, if the wind turbine is twisted and twisted to a certain extent, the unwinding will be carried out to protect the cable. For example, under the premise of ensuring that the twisting does not cause any damage to the cable, it can be determined in advance that the twisting advance is within 360 degrees, so that the twisting to the limit will not occur frequently due to changes in the wind direction. . The twisting lead time refers to the twisting operation of the cable in advance in order to alleviate the de-cable frequency in the target time period. 0 degrees, but de-cable in advance to reserve the data in the target time period. For example, the de-cable data in the target time period is finally -180 degrees, then the de-cable can be stopped when the current de-cable reaches +180 degrees, so as to This can effectively reduce the number of un-cables within the target time period.

103. According to the torque advance amount, unwind the wind turbine in advance.

After the torsion advance is determined, the wind turbine can be uncoated in advance, which can also be understood as the torsion in the opposite direction of uncoiling in the future.

The present embodiment provides a method for controlling the unwinding of a wind turbine, including: predicting the unwinding data of the wind turbine in a target time period; determining the twisting advance of the wind turbine according to the unwinding data; The wind turbine is de-cabled in advance, and the wind-turbine advance is determined in advance, so that the number of de-cables of the wind turbine can be effectively reduced, thereby increasing the power generation of the wind turbine. Effectively improve power generation efficiency.

Further, on the basis of the above-mentioned embodiment, the decoupling data in this embodiment includes the number of left decoupling events and the number of right decoupling events, wherein the left decoupling event and the right decoupling event refer to two opposite directions. Uncoiling, namely clockwise uncoiling and counterclockwise uncoiling, can be defined as left uncoupling in the corresponding counterclockwise direction from the side away from the ground to the ground, and right uncoiling in the clockwise direction, which can also be understood as forward rotation and reversing the two opposite directions of uncoupling. Correspondingly, determining the torque advance of the wind turbine according to the uncoiling data may specifically include: calculating the ratio of the number of left uncoiling to the number of right uncoiling, and determining the torque advance according to the relationship between the ratio and preset parameters. For example, if the number of left uncoupling events in the target time period is defined as x, and the number of right uncoupling events is y, the ratio of the number of left uncoupling events to the number of right uncoupling events can be calculated as x/y, and then compare x According to the relationship between /y and the preset parameter, according to the specific relationship between the two, the specific torque advance amount can be determined.

Wherein, according to the relationship between the ratio and the preset parameter, the torque advance is determined, and if the ratio is greater than or equal to the first preset parameter, the torque advance is determined as the first preset angle value; if the ratio is less than or equal to the first preset angle value; Two preset parameters, determine the torque advance 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, determine the torque advance as the third preset angle value; if If the ratio is greater than the second preset parameter and less than or equal to the fourth preset parameter, the torque advance is determined as the fourth preset angle value; if the ratio is greater than the fourth preset parameter and less than the third preset parameter, the torque advance is determined The amount is the fifth preset angle value. Wherein, the first preset parameter is greater than the third preset parameter, the third preset parameter is greater than the fourth preset parameter, 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, the angle value Including the specific plus and minus, that is, +180 degrees is greater than -360 degrees.

FIG. 2 is a detailed schematic diagram of part of the process in FIG. 1 .

Specifically, as shown in FIG. 2 , the first preset parameter may be 4, the first preset angle value may be +360 degrees, the second preset parameter may be 1/4, and the second preset angle value may be -360 degrees, the third preset angle value 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, the fifth preset angle value can be The preset angle value can be 0 degrees. Corresponding to the left uncoupling event and the right uncoupling event, the left uncoupling angle is a positive angle value, and the right uncoupling angle is a negative angle value, that is, +360 degrees is a left uncoupling value. The cable is 360 degrees, and -180 degrees is 180 degrees for the right uncable. That is, it is determined whether x/y is greater than or equal to 4. When x/y ≥ 4, the torque advance is determined to be +360 degrees. When x/y is less than 4, it is determined whether x/y is less than 1/4. When /y<1/4, the torque advance is determined to be -360 degrees. When x/y is greater than 1/4, the relationship between x/y and 3 is judged. When 3≤x/y<4, then Determine the torque advance as +180 degrees, if x/y is not between 3 and 4, then judge the relationship between x/y and 1/3 and 1/4, if 1/3≥x/y≥1/ At 4 o'clock, untie the cable to -180 degrees in advance, otherwise untie the cable to 0 degrees, no matter how many degrees the cable is unplugged in advance, the automatic splitting will start after the advance unwinding is completed. Taking the number line as an example to illustrate, first determine when several key parameters, namely 1/4, 1/3, 3 and 4, the four specific parameters divide the number line into five intervals, and then judge x/y respectively. Within which interval is located, the corresponding advance decoupling of the interval is performed. When x/y is in the middle interval, it means that there is no need to unwind in advance, that is, the fifth preset angle value is zero; the torsion advance is determined to be the fifth preset angle value, and the wind is affected by the yaw to the wind power. The wind turbine can be controlled by uncoupling, and the yaw to wind refers to the automatic wind uncoupling control system of the wind turbine.

Further, on the basis of the above-mentioned embodiment, the decoupling data of the wind turbines in the predicted target time period in this embodiment may be obtained from the historical database of the historical decoupling data of the wind turbines in the time period corresponding to the target time period; According to the historical decoupling data, predict the decoupling data of the wind turbine in the target time period. For example, the number of left unwinding events and the number of right unwinding events of wind turbines in the same historical time period can be obtained from the database, and the target time period is one month as an example. The historical average data can be used to predict the number of left and right uncoiling events of the wind turbine within the target time period according to the historical uncoupling data. The historical database may include the decoupling data of the wind turbine at all times since its establishment.

Further, on the basis of the above-mentioned embodiment, in this embodiment, to predict the uncoupling data of the wind turbines in the target time period, the wind power information and wind direction information in the target time period can be obtained through meteorological prediction; , to predict the decoupling data of the wind turbines in the target time period, and predict the wind direction and wind speed in the future target time period by means of meteorological prediction, so as to predict the decoupling in the target time period according to the influence relationship of wind direction and wind speed on the wind turbines. Data, weather forecast includes altitude information, latitude and longitude information and seasonal information and so on.

By unwinding the wind turbine in advance, it can reduce the number of unwinding, reduce cable wear, reduce the self-consumption of the wind turbine, and reduce the time required for unwinding, thereby improving the power generation efficiency of the wind turbine and improving the fault tolerance of the wind turbine. Updated cable twist measurements.

Based on the same general inventive concept, the present application also protects a wind turbine unwinding control device. The wind turbine unwinding control device provided by the present invention will be described below. The wind turbine unwinding control device described below is the same as the wind turbine described above. The uncoupling control methods can be referred to each other correspondingly.

FIG. 3 is a schematic structural diagram of a wind turbine unwinding control device provided by the present invention.

As shown in FIG. 3 , a wind turbine unwinding control device provided in this embodiment includes:

The prediction module 301 is used for predicting the uncoupling data of the wind turbine in the target time period;

A determination module 302, configured to determine the torsion advance of the wind turbine according to the uncoupling data;

The decoupling module 303 is used for decoupling the wind turbine in advance according to the torsion advance.

The present embodiment provides a wind turbine unwinding control device, comprising: predicting the unwinding data of the wind turbine in a target time period; determining the twisting advance of the wind turbine according to the unwinding data; The wind turbine is de-cabled in advance, and the wind-turbine advance is determined in advance, so that the number of de-cables of the wind turbine can be effectively reduced, thereby increasing the power generation of the wind turbine. Effectively improve power generation efficiency.

Further, the decoupling data in this embodiment includes the number of left decoupling events and the number of right decoupling events;

The determining module 302 is specifically used for:

calculating the ratio of the number of times of uncoupling the left to the number of times of uncoupling the right;

The torque advance is determined according to the relationship between the ratio and the preset parameter.

Further, the determining module 302 in this embodiment is also specifically used for:

If the ratio is greater than or equal to the first preset parameter, determining that the torque advance is the first preset angle value;

If the ratio is less than or equal to a second preset parameter, determining that the torque advance is a 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 that the torque advance is a 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 that the torque advance is a fourth preset angle value;

If the ratio is greater than the fourth preset parameter and less than the third preset parameter, the torque advance is determined to be a fifth preset angle value.

Further, the fifth preset angle value in this embodiment is zero; it also includes an automatic wind alignment module for:

The wind turbine is controlled by yaw against the wind for uncoupling.

Further, in this embodiment, 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 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, and the fourth preset angle value is greater than the second preset angle value. Set the angle value, the third preset angle value is greater than zero, and the fourth preset angle value is less than zero.

Further, the prediction module 301 in this embodiment is specifically used for:

Obtain the historical decoupling data of the wind turbine in the time period corresponding to the target time period in the historical database;

According to the historical decoupling data, the decoupling data of the wind turbine in the target time period is predicted.

Further, the prediction module 301 in this embodiment is specifically used for:

Obtain wind information and wind direction information within the target time period through meteorological prediction;

According to the wind information and the wind direction information, the uncoupling data of the wind turbine in the target time period is predicted.

Based on the same general inventive concept, the present application also protects a wind turbine, which adopts the control method for unwinding a wind turbine according to any of the above-mentioned embodiments to perform de-cable control.

FIG. 4 is a schematic structural diagram of an electronic device provided by the present invention.

As shown in FIG. 4 , the electronic device may include: a processor (processor) 410, a communication interface (Communications Interface) 420, a memory (memory) 430 and a communication bus 440, wherein the processor 410, the communication interface 420, and the memory 430 pass through The communication bus 440 accomplishes the mutual communication. The processor 410 may invoke the logic instructions in the memory 430 to execute a method for controlling the decoupling of the wind turbine. The method includes: predicting the decoupling data of the wind turbine in a target time period; determining the decoupling data of the wind turbine according to the decoupling data. Torque advance; according to the torsion advance, the wind turbines are uncoated in advance.

In addition, the above-mentioned logic instructions in the memory 430 may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as an independent product. Based on such understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause 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 described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, removable hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

In another aspect, the present invention also provides a computer program product, the computer program product includes a computer program, the computer program can be stored on a non-transitory computer-readable storage medium, and when the computer program is executed by a processor, the computer can Execute the control method for uncoiling wind turbines provided by the above methods, the method includes: predicting the uncoiling data of the wind turbine in a target time period; determining the torsion advance of the wind turbine according to the uncoiling data; The above-mentioned twisting advance amount is used to unwind the wind turbine in advance.

In yet another aspect, the present invention also provides a non-transitory computer-readable storage medium on which a computer program is stored, and the computer program is implemented when executed by a processor to execute the wind turbine untethering control method provided by the above methods, the The method includes: predicting the unwinding data of the wind turbine in a target time period; determining the twisting advance of the wind turbine according to the unwinding data; cable.

The device embodiments described above are only illustrative, wherein 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 it can be distributed over multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

From 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 certainly can also be implemented by hardware. Based on this understanding, the above-mentioned technical solutions can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic A disc, an optical disc, etc., includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments or some parts of the embodiments.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not 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 it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. a wind turbine unwinding control method, is characterized in that, comprises: Predict the decoupling data of wind turbines within the target time period; determining the torsion advance of the wind turbine according to the decoupling data; According to the torsion advance, the wind turbines are uncoupled in advance. 2 . The method for controlling uncoiling of a wind turbine according to claim 1 , wherein the uncoiling data includes the number of left uncoiling events and the number of right uncoiling events; 2 . The determining of the torsion advance of the wind turbine according to the decoupling data includes: calculating the ratio of the number of times of uncoupling the left to the number of times of uncoupling the right; The torque advance is determined according to the relationship between the ratio and the preset parameter. 3 . The method for controlling uncoiling of wind turbines according to claim 2 , wherein, determining the torque advance according to the relationship between the ratio and the preset parameter, comprising: 3 . If the ratio is greater than or equal to the first preset parameter, determining that the torque advance is the first preset angle value; If the ratio is less than or equal to a second preset parameter, determining that the torque advance is a 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 that the torque advance is a 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 that the torque advance is a fourth preset angle value; If the ratio is greater than the fourth preset parameter and less than the third preset parameter, the torque advance is determined to be a fifth preset angle value. 4. The method for controlling uncoiling of a wind turbine according to claim 3, wherein the fifth preset angle value is zero; After the determining that the torque advance is the fifth preset angle value, the method further includes: The wind turbine is controlled by yaw against the wind for uncoupling. 5 . The method for controlling unwinding of wind turbines according to claim 3 , wherein the first preset parameter is greater than the third preset parameter, and the third preset parameter is greater than the fourth preset parameter, 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, and the fourth preset angle value is greater than the second preset angle value. An angle value is set, the third preset angle value is greater than zero, and the fourth preset angle value is less than zero. 6. The control method for uncoupling a wind turbine according to any one of claims 1-5, wherein the uncoiling data of the wind turbine in the predicted target time period comprises: Obtain the historical decoupling data of the wind turbine in the time period corresponding to the target time period in the historical database; According to the historical decoupling data, predict the decoupling data of the wind turbine in the target time period. 7. The control method for uncoiling wind turbines according to any one of claims 1-5, wherein the uncoiling data of the wind turbines in the predicted target time period comprises: Obtain wind information and wind direction information within the target time period through meteorological prediction; According to the wind information and the wind direction information, the uncoupling data of the wind turbine in the target time period is predicted. 8. A wind turbine unwinding control device, characterized in that, comprising: Prediction module, used to predict the decoupling data of wind turbines in the target time period; a determining module, configured to determine the torsion advance of the wind turbine according to the decoupling data; The decoupling module is used for decoupling the wind turbine in advance according to the torsion advance amount. 9. An electronic device comprising a memory, a processor and a computer program stored on the memory and running on the processor, wherein the processor implements the program as claimed in claim 1 when executing the program Steps of any one of the steps of the control method for uncoiling wind turbines described in any one of to 7. 10 . A wind turbine generator set, characterized in that the uncoiling control method for a wind turbine generator set according to any one of claims 1 to 7 is used for uncoiling control.

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