A method, device and medium for determining line of offshore wind farm

Abstract

The present invention discloses a method, device and medium for determining the line of an offshore wind farm, which is applicable to the field of line design of a wind farm. The current terminal wind turbine is selected as the first wind turbine, and the wind turbine connected to the first wind turbine is selected as the second wind turbine, and the cumulative current carrying capacity of the first wind turbine is determined, and then the corresponding target submarine cable model is determined, and the line connecting the first wind turbine and the second wind turbine is determined according to the target submarine cable model and the line length connecting the first wind turbine and the second wind turbine. The cumulative current carrying capacity is determined by selecting each current terminal wind turbine as the first wind turbine, and the corresponding target submarine cable model is determined when the cumulative current carrying capacity is determined. Different target submarine cable models are selected between wind turbines with different cumulative current carrying capacities in the field, so as to determine the preferred route of the entire field. Avoid the single selection of the submarine cable model of the ring topology, which leads to the failure to achieve a better line result, improve the flexibility of submarine cable selection, and achieve a better line laying result.

Description

Technical Field

[0001] The present invention relates to the field of wind farm line design, and in particular to a method, device and medium for determining lines of an offshore wind farm. Background Art

[0002] With the access of wind power plants to the grid at parity, stringent requirements are placed on the construction cost and power consumption of new projects. Line and road laying are the main variable costs that affect the construction cost of wind power projects. The line laying of offshore wind farms mainly uses submarine cables, and the selection of submarine cables is affected by the current of the series-connected wind turbines and the current carrying capacity of the submarine cables. The model of submarine cables connecting wind turbines is not a fixed value.

[0003] Usually, the laying of submarine cable lines adopts a ring topology. Although the ring topology is stable and safe, any wind turbine will be connected to the other two wind turbines, and its current carrying capacity must take into account the current carrying capacity of the connected wind turbines. The current carrying capacity of the selected submarine cable model is much larger than the current carrying capacity of its own wind turbine, resulting in a single submarine cable model selected in the same ring topology structure within the site, poor flexibility, and the line laying does not achieve the best effect.

[0004] Therefore, it is urgent for those skilled in the art to find a method for determining the route of an offshore wind farm. Summary of the invention

[0005] The purpose of the present invention is to provide a method for determining the line of an offshore wind farm, so that the line laying can achieve a better effect.

[0006] In order to solve the above technical problems, the present invention provides a method for determining a line of an offshore wind farm, comprising:

[0007] According to the fans in the field and the connection mode, the current terminal fan in the field is selected as the first fan and the fan connected to the first fan is selected as the second fan;

[0008] Determine the cumulative current carrying capacity of the first fan according to the initial fan in the field area and the connection mode and current carrying capacity set, wherein the current carrying capacity set is a set of recorded fan information and cumulative current carrying capacity;

[0009] Determine the target submarine cable model corresponding to the first wind turbine and the second wind turbine according to the accumulated current carrying capacity;

[0010] Add the fan information and accumulated current carrying capacity corresponding to the first fan to the current carrying capacity set;

[0011] The target submarine cable model and the length of the line connecting the first wind turbine and the second wind turbine are added to the submarine cable set, and the line connecting the first wind turbine and the second wind turbine is determined according to the submarine cable set.

[0012] Preferably, the cumulative current carrying capacity of the first fan is determined according to the initial fans in the field area and the connection mode and current carrying capacity set, including:

[0013] Determine whether the first fan is connected to the fan corresponding to the fan information in the current carrying capacity set according to the initial fan and the connection mode in the field area;

[0014] If so, the cumulative current carrying capacity of the first fan is the sum of the cumulative current carrying capacity of the original first fan connected to the original second fan when the first fan was previously used as the original second fan and the rated current of the first fan;

[0015] If not, the accumulated current carrying capacity of the first fan is the rated current of the first fan.

[0016] Preferably, determining the target submarine cable model corresponding to the first wind turbine and the second wind turbine according to the accumulated current carrying capacity includes:

[0017] Sort the current carrying capacity corresponding to multiple submarine cable models from small to large;

[0018] Select the current carrying capacity corresponding to two submarine cable models close to the cumulative current carrying capacity;

[0019] A target current carrying capacity greater than the cumulative current carrying capacity is selected from the current carrying capacities corresponding to the two submarine cable models to determine a target submarine cable model corresponding to the target current carrying capacity.

[0020] Preferably, the current terminal wind turbines in the field are selected, including:

[0021] Select the current wind turbine in the site;

[0022] Determine whether the current fan is connected to multiple fans;

[0023] If yes, return to the step of selecting the current wind turbine in the field;

[0024] If not, the current fan is used as the terminal fan.

[0025] Preferably, after determining the line connecting the first wind turbine and the second wind turbine according to the submarine cable set, the method further includes:

[0026] Merging the lines connecting the plurality of first wind turbines and the second wind turbines in the submarine cable assembly;

[0027] The route of the field area is determined based on the merged results.

[0028] Preferably, after determining the lines of the field area, the method further includes:

[0029] Check whether the accumulated current carrying capacity of the fans in the field is correct;

[0030] If correct, the final result information is output;

[0031] If incorrect, report a fault.

[0032] Preferably, the fan information is information of the fan number.

[0033] In order to solve the above technical problems, the present invention further provides a line determination device for an offshore wind farm, comprising:

[0034] A selection module is used to select the current terminal fan in the field as the first fan and the fan connected to the first fan as the second fan according to the fans in the field and the connection mode;

[0035] A first determination module is used to determine the cumulative current carrying capacity of the first wind turbine according to the initial wind turbines in the field area and the connection mode and current carrying capacity set, wherein the current carrying capacity set is a set of recorded wind turbine information and cumulative current carrying capacity;

[0036] A second determination module is used to determine the target submarine cable model corresponding to the first wind turbine and the second wind turbine according to the accumulated current carrying capacity;

[0037] An adding module, used for adding the fan information and the accumulated current carrying capacity corresponding to the first fan to the current carrying capacity set;

[0038] The third determination module is used to add the target submarine cable model and the line length connecting the first wind turbine and the second wind turbine to the submarine cable set, and determine the line connecting the first wind turbine and the second wind turbine according to the submarine cable set.

[0039] In order to solve the above technical problems, the present invention further provides a line determination device for an offshore wind farm, comprising:

[0040] Memory for storing computer programs;

[0041] A processor is used to implement the steps of the above-mentioned method for determining the route of an offshore wind farm when executing a computer program.

[0042] In order to solve the above technical problems, the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned method for determining the line of an offshore wind farm are implemented.

[0043] The present invention provides a method for determining the line of an offshore wind farm. The method adopts a tree topology structure to select the current terminal wind turbine in the field as the first wind turbine, and the wind turbine connected to the first wind turbine as the second wind turbine. The cumulative current carrying capacity of the first wind turbine is determined according to the initial wind turbine, the connection mode and the saved current carrying capacity set, and then the corresponding target submarine cable model is determined based on the cumulative current carrying capacity of the first wind turbine. The wind turbine information and the cumulative current carrying capacity corresponding to the first wind turbine are added to the current carrying capacity set, and the target submarine cable model and the line length of the connection between the first wind turbine and the second wind turbine are added to the submarine cable set to determine the line connecting the first wind turbine and the second wind turbine. The cumulative current carrying capacity is determined by selecting each current terminal wind turbine as the first wind turbine, and the corresponding target submarine cable model is determined when the cumulative current carrying capacity is determined. Different target submarine cable models are selected for wind turbines with different cumulative current carrying capacities in the field, so as to determine the preferred route of the entire field. It is avoided that the selection of a single submarine cable model of a ring topology does not lead to a better line result, the flexibility of submarine cable selection is improved, and the line laying achieves a better result.

[0044] In addition, the present invention also provides a line determination device and medium for an offshore wind farm, which have the same beneficial effects as the above-mentioned line determination method for an offshore wind farm. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 A flow chart of a method for determining a line of an offshore wind farm provided by an embodiment of the present invention;

[0047] Figure 2 A structural diagram of a line determination device for an offshore wind farm provided by an embodiment of the present invention;

[0048] Figure 3 A structural diagram of another device for determining a line of an offshore wind farm provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] The core of the present invention is to provide a method for determining the line of an offshore wind farm, so that the line laying can achieve a better effect.

[0051] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0052] It should be noted that the line determination method of the wind farm provided by the present invention is only applicable to offshore wind farms, whose wind turbine laying structure is a tree-like topology structure. The larger the cross-sectional area of ​​the submarine cable, the higher its current carrying capacity. The purpose is to select a suitable type of submarine cable according to the total current of the submarine cable so that the line can achieve a better result.

[0053] Figure 1 A flow chart of a method for determining a line of an offshore wind farm provided by an embodiment of the present invention, such as Figure 1 As shown, the method includes:

[0054] S11: According to the fans in the field and the connection mode, the current terminal fan in the field is selected as the first fan and the fan connected to the first fan is selected as the second fan.

[0055] It can be understood that in a tree topology structure, the number of fans connected to the head-end fan is one or more. To determine the current-carrying capacity of any fan, it is necessary to first determine the current-carrying capacity of the terminal fan in the tree topology structure. After the current-carrying capacity of the terminal fan is determined, it is deleted and a new terminal fan is determined. This is repeated in this way to complete the determination of the current-carrying capacity of the fans in the site.

[0056] According to the fans in the site and the connection method, the current terminal fan is selected as the first fan, and the fan connected to the first fan is the second fan. Specifically, there is only one fan connected to the first fan, and the fan can be connected to the current terminal fan and may also be connected to other terminal fans without specific requirements.

[0057] It should be noted that after the current terminal fan has determined the previous first fan, in order to facilitate the determination of the current carrying capacity of other fans, the connection method of the previous first fan can be deleted first, thereby obtaining the fans and connection methods of the new site. The current terminal fan is obtained based on the new site connection method. The number of terminal fans each time is one for a tree-like topology structure, and there can be multiple tree-like topology structures in the site, which is not limited by the present invention.

[0058] S12: Determine the cumulative current carrying capacity of the first wind turbine according to the initial wind turbines in the field and the connection mode and current carrying capacity set, wherein the current carrying capacity set is a set of recorded wind turbine information and cumulative current carrying capacity.

[0059] It is mentioned above that the current terminal fan is obtained based on the fans and connection methods in the new field. When determining the cumulative current carrying capacity of the first fan, it is necessary to determine it based on the initial fans and connection methods and the fan connection methods in the current carrying capacity set. When the first fan of the tree topology is selected for the first time, step S11 is the same as the fans and connection methods in the field of this step, and there is no fan in its current carrying capacity set, which is an empty set.

[0060] In the subsequent acquisition of the first fan, the current carrying capacity set is the fan that was previously deleted as the first fan. In the current first fan, the cumulative current carrying capacity of the first fan is determined based on whether the fans in the current carrying capacity set are connected. If connected, it means that the first fan is not located at the end of the tree topology in the initial connection mode, but is connected to multiple fans, and its cumulative current carrying capacity is the sum of the current carrying capacity of multiple connected fans and its own current carrying capacity. If not connected, it means that it is only connected to one fan, located at the end of the tree topology, and its cumulative current carrying capacity is its own rated current.

[0061] The current carrying capacity set records the fan information and the corresponding cumulative current carrying capacity. The fan information may be the location, number, and attributes of the fan in the tree topology structure. The present invention does not make specific requirements, as long as the connection method of the previous first fan can be found.

[0062] S13: Determine the target submarine cable model corresponding to the first wind turbine and the second wind turbine according to the accumulated current carrying capacity.

[0063] After the cumulative current carrying capacity of the first wind turbine is obtained in step S12, the target submarine cable model corresponding to the connection of the first wind turbine and the second wind turbine is determined according to the cumulative current carrying capacity. Specifically, in the tree topology, the current of the second wind turbine flows to the first wind turbine, and the cumulative current carrying capacity of the second wind turbine is greater than or equal to the cumulative current carrying capacity of the first wind turbine. Therefore, the corresponding connected submarine cable model can be determined according to the cumulative current carrying capacity of the first wind turbine. There are multiple different submarine cable models. The current carrying capacity corresponding to the submarine cables of different models is compared with the cumulative current carrying capacity, and the submarine cable model that is greater than the cumulative current carrying capacity and greater than the smallest degree is determined as the target submarine cable model. It should be noted that there may be one or more submarine cables corresponding to the cumulative current carrying capacity among multiple different types of submarine cables. If there is one, it is the target submarine cable model. If there are multiple, since the submarine cable model closest to the cumulative current carrying capacity is selected, the submarine cable model with the smallest degree of greater than is selected is selected as the target submarine cable model from the perspective of current carrying capacity.

[0064] S14: Add the fan information and the accumulated current carrying capacity corresponding to the first fan to the current carrying capacity set.

[0065] After determining the target submarine cable model, the wind turbine information and the accumulated current carrying capacity corresponding to the first wind turbine are added to the current carrying capacity set so as to subsequently obtain the next current terminal wind turbine.

[0066] S15: adding the target submarine cable model and the length of the line connecting the first wind turbine and the second wind turbine to the submarine cable set, and determining the line connecting the first wind turbine and the second wind turbine according to the submarine cable set.

[0067] The target submarine cable model and the line length connecting the first wind turbine and the second wind turbine are added to the submarine cable set, and then the line connecting the first wind turbine and the second wind turbine is determined, that is, the target submarine cable and the corresponding line length are determined to calculate the final construction cost, so that the line can achieve the best effect.

[0068] It should be noted that the line connecting the first wind turbine and the second wind turbine is determined, and the final line of the entire site is determined based on the multiple first wind turbine and second wind turbine connection lines in the submarine cable assembly.

[0069] The present invention provides a method for determining the line of an offshore wind farm. The method adopts a tree topology structure to select the current terminal wind turbine in the field as the first wind turbine, and the wind turbine connected to the first wind turbine as the second wind turbine. The cumulative current carrying capacity of the first wind turbine is determined according to the initial wind turbine, the connection mode and the saved current carrying capacity set, and then the corresponding target submarine cable model is determined based on the cumulative current carrying capacity of the first wind turbine. The wind turbine information and the cumulative current carrying capacity corresponding to the first wind turbine are added to the current carrying capacity set, and the target submarine cable model and the line length of the connection between the first wind turbine and the second wind turbine are added to the submarine cable set to determine the line connecting the first wind turbine and the second wind turbine. The cumulative current carrying capacity is determined by selecting each current terminal wind turbine as the first wind turbine, and the corresponding target submarine cable model is determined when the cumulative current carrying capacity is determined. Different target submarine cable models are selected for wind turbines with different cumulative current carrying capacities in the field, so as to determine the preferred route of the entire field. It is avoided that the selection of a single submarine cable model of a ring topology does not lead to a better line result, the flexibility of submarine cable selection is improved, and the line laying achieves a better result.

[0070] Based on the above embodiment, step S12 determines the cumulative current carrying capacity of the first fan according to the initial fans in the field area and the connection mode and current carrying capacity set, including:

[0071] Determine whether the first fan is connected to the fan corresponding to the fan information in the current carrying capacity set according to the initial fan and the connection mode in the field area;

[0072] If so, the cumulative current carrying capacity of the first fan is the sum of the cumulative current carrying capacity of the original first fan connected to the original second fan when the first fan was previously used as the original second fan and the rated current of the first fan;

[0073] If not, the accumulated current carrying capacity of the first fan is the rated current of the first fan.

[0074] Specifically, it is determined whether the first fan is connected to the fans in the current carrying set according to the initial fan and the connection mode. The current carrying set records the fan information and the cumulative current carrying set. The fan information in the above text can be the location, number and attributes of the fan in the tree topology structure. That is, it is determined whether the first fan is connected to the fan corresponding to the fan information in the current carrying set. If there is a connection, it means that the current first fan is connected to other fans in the initial connection mode, and the cumulative current carrying capacity is the sum of the cumulative current carrying capacity corresponding to multiple connected fans and its own rated current. If there is no connection, it means that the current first fan is not connected to any fan in the initial connection mode, and the cumulative current carrying capacity is its own rated current.

[0075] This embodiment provides a method for determining the cumulative current carrying capacity of the first wind turbine according to the initial wind turbines in the site and the connection mode and current carrying capacity set, and determining the cumulative current carrying capacity as the target value to select a suitable submarine cable model, so as to facilitate the subsequent determination of the target submarine cable model.

[0076] On the basis of the above embodiment, determining the target submarine cable model corresponding to the first wind turbine and the second wind turbine according to the accumulated current carrying capacity in step S13 includes:

[0077] Sort the current carrying capacity corresponding to multiple submarine cable models from small to large;

[0078] Select the current carrying capacity corresponding to two submarine cable models close to the cumulative current carrying capacity;

[0079] A target current carrying capacity greater than the cumulative current carrying capacity is selected from the current carrying capacities corresponding to the two submarine cable models to determine a target submarine cable model corresponding to the target current carrying capacity.

[0080] Specifically, in order to compare the current carrying capacity corresponding to different types of submarine cables with the cumulative current carrying capacity, it is necessary to sort the current carrying capacity corresponding to multiple submarine cable models, which can be sorted from small to large or from large to small, and the present invention does not make specific limitations.

[0081] According to the specific value of the cumulative current carrying capacity, the current carrying capacity corresponding to the two submarine cable models is selected. Since the current of the second wind turbine flows to the first wind turbine, the target current carrying capacity greater than the cumulative current carrying capacity of the first wind turbine is selected as the target submarine cable model. For example, the current carrying capacity corresponding to multiple submarine cable models is sorted in ascending order (a1, a2, a3...a n ), the cumulative current carrying capacity of the first wind turbine is A. Comparing A with the current carrying capacity corresponding to the submarine cable model, it is found that A is between a3 and a4 (a3<A<a4), so a4 is selected as the target submarine cable model.

[0082] It should be noted that this embodiment is only a preferred embodiment, and the current carrying capacity corresponding to the submarine cable model may not be sorted. Each time A is compared, the current carrying capacity greater than A is put into a set, and then the current carrying capacity greater than A is subtracted to obtain the target value, and the current carrying capacity with the smallest target value is selected as the target current carrying capacity.

[0083] This embodiment provides a method for determining the target submarine cable model corresponding to the first wind turbine and the second wind turbine according to the cumulative current carrying capacity. Different target submarine cable models are selected according to the cumulative current carrying capacity of different wind turbines, thereby improving flexibility and facilitating the determination of subsequent routes.

[0084] Based on the above embodiment, the current terminal wind turbine of the site is selected in step S11, including:

[0085] Select the current wind turbine in the site;

[0086] Determine whether the current fan is connected to multiple fans;

[0087] If yes, return to the step of selecting the current wind turbine in the field;

[0088] If not, the current fan is used as the terminal fan.

[0089] It can be understood that to select the current terminal fan, it is necessary to specifically determine whether the selected current fan is connected to multiple fans. If so, it means that it cannot be used as the terminal fan of the tree topology structure, and the current fan will continue to be selected for judgment; if not, the current fan will be used as the terminal fan and as the first fan.

[0090] In a tree topology, there may be multiple terminal fans, and the current terminal fan needs to be obtained as the first fan to determine the subsequent routes.

[0091] The present embodiment provides for selecting the current terminal fan in the field, which facilitates the subsequent determination of the first fan and the cumulative current carrying capacity of the first fan. If any fan is used as the first fan, it will increase the difficulty of the subsequent determination of the cumulative current carrying capacity of the first fan and increase the complexity of the operation.

[0092] On the basis of the above embodiment, after determining the line connecting the first wind turbine and the second wind turbine according to the submarine cable set in step S15, the method further includes:

[0093] Merging the lines connecting the plurality of first wind turbines and the second wind turbines in the submarine cable assembly;

[0094] The route of the field area is determined based on the merged results.

[0095] It should be noted that the above embodiment only determines the line connecting the first wind turbine and the second wind turbine, and there are multiple lines in the submarine cable collection that are used to connect the first wind turbine and the second wind turbine. The entire site first selects the current terminal wind turbine as the first wind turbine to subsequently determine the line connecting the first wind turbine and the second wind turbine. It can be understood that there are multiple lines determined in the site to connect the first wind turbine and the second wind turbine, and the multiple connection lines need to be merged as the line of the entire site, and then the line of the entire site is determined based on the merged result.

[0096] This embodiment provides a method for merging the lines connecting the first wind turbines and the second wind turbines in the submarine cable set, and determining the lines in the field area according to the merging result. Different target submarine cable models are determined for different cumulative current carrying capacities of wind turbines, and then the connected lines are determined, and finally they are merged to obtain the lines in the field area, thereby improving the flexibility of submarine cable selection and achieving a better result in line laying.

[0097] Based on the above embodiment, after determining the lines of the field area, the method further includes:

[0098] Check whether the accumulated current carrying capacity of the fans in the field is correct;

[0099] If correct, the final result information is output;

[0100] If incorrect, report a fault.

[0101] It is understandable that the current carrying capacity corresponding to the fans in the field is obtained based on the cumulative current carrying capacity between different fans. Before laying the lines in the field, it is necessary to check whether the cumulative current carrying capacity is correct to avoid fan failure during the line laying process, thereby saving labor costs. If the measured cumulative current carrying capacity is correct, the final result information is output. If the measured cumulative current carrying capacity is incorrect, it means that the fan in the field has failed, and the failure needs to be reported for the implementation of subsequent maintenance work.

[0102] The present embodiment provides a detection area corresponding to the cumulative current carrying capacity of the fans, thereby avoiding failures during the actual laying process of the area and saving labor costs. If the detection is correct, the final result is output for laying, so that the line laying achieves a better result.

[0103] Based on the above embodiments, the wind turbine information may be information such as the location, number and attributes of the wind turbine in the tree topology structure. The wind turbine information in this embodiment is the wind turbine number information, which is only a preferred embodiment, and the wind turbines are numbered in the tree topology structure of the site to facilitate operation and comparison.

[0104] The above describes in detail various embodiments corresponding to the route determination of an offshore wind farm. On this basis, the present invention also discloses an offshore wind farm route determination device corresponding to the above method. Figure 2The structure diagram of a line determination device for an offshore wind farm provided by an embodiment of the present invention. Figure 2 As shown, the route determination device of the offshore wind farm includes:

[0105] A selection module 11 is used to select the current terminal fan in the field as the first fan and the fan connected to the first fan as the second fan according to the fans in the field and the connection mode;

[0106] A first determination module 12 is used to determine the cumulative current carrying capacity of the first wind turbine according to the initial wind turbines in the field area and the connection mode and current carrying capacity set, wherein the current carrying capacity set is a set of recorded wind turbine information and cumulative current carrying capacity;

[0107] A second determination module 13 is used to determine the target submarine cable model corresponding to the first wind turbine and the second wind turbine according to the accumulated current carrying capacity;

[0108] An adding module 14, used to add the fan information and the accumulated current carrying capacity corresponding to the first fan to the current carrying capacity set;

[0109] The third determination module 15 is used to add the target submarine cable model and the length of the line connecting the first wind turbine and the second wind turbine to the submarine cable set, and determine the line connecting the first wind turbine and the second wind turbine according to the submarine cable set.

[0110] Since the embodiments of the device part correspond to the above embodiments, please refer to the description of the embodiments of the device part for the embodiments of the device part, and will not be repeated here.

[0111] The present invention provides a line determination device for an offshore wind farm. The device adopts a tree topology structure to select the current terminal wind turbine in the field as the first wind turbine, and the wind turbine connected to the first wind turbine as the second wind turbine. The cumulative current carrying capacity of the first wind turbine is determined according to the initial wind turbine, the connection mode and the saved current carrying capacity set, and then the corresponding target submarine cable model is determined based on the cumulative current carrying capacity of the first wind turbine. The wind turbine information and the cumulative current carrying capacity corresponding to the first wind turbine are added to the current carrying capacity set, and the target submarine cable model and the line length of the connection between the first wind turbine and the second wind turbine are added to the submarine cable set to determine the line connecting the first wind turbine and the second wind turbine. The cumulative current carrying capacity is determined by selecting each current terminal wind turbine as the first wind turbine, and the corresponding target submarine cable model is determined when the cumulative current carrying capacity is determined. Different target submarine cable models are selected for wind turbines with different cumulative current carrying capacities in the field, so as to determine the preferred route of the entire field. It is avoided that the selection of a single submarine cable model of a ring topology does not lead to a better line result, the flexibility of submarine cable selection is improved, and the line laying achieves a better result.

[0112] Figure 3 A structural diagram of another offshore wind farm line determination device provided by an embodiment of the present invention, such as Figure 3 As shown, the device comprises:

[0113] A memory 21, used for storing computer programs;

[0114] The processor 22 is used to implement the steps of the method for determining the line of an offshore wind farm when executing a computer program.

[0115] The device for determining the line of an offshore wind farm provided in this embodiment may include, but is not limited to, a smart phone, a tablet computer, a laptop computer, or a desktop computer.

[0116] Among them, the processor 22 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 22 may be implemented in at least one hardware form of a digital signal processor (DSP), a field-programmable gate array (FPGA), and a programmable logic array (PLA). The processor 22 may also include a main processor and a coprocessor. The main processor is a processor for processing data in an awake state, also known as a central processing unit (CPU); the coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 22 may be integrated with a graphics processing unit (GPU), which is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 22 may also include an artificial intelligence (AI) processor, which is used to process computing operations related to machine learning.

[0117] The memory 21 may include one or more computer-readable storage media, which may be non-transitory. The memory 21 may also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In this embodiment, the memory 21 is at least used to store the following computer program 201, wherein, after the computer program is loaded and executed by the processor 22, it can implement the relevant steps of the line determination method for the offshore wind farm disclosed in any of the aforementioned embodiments. In addition, the resources stored in the memory 21 may also include an operating system 202 and data 203, etc., and the storage method may be temporary storage or permanent storage. Among them, the operating system 202 may include Windows, Unix, Linux, etc. The data 203 may include, but is not limited to, data involved in the line determination method for the offshore wind farm, etc.

[0118] In some embodiments, the route determination device for an offshore wind farm may further include a display screen 23 , an input / output interface 24 , a communication interface 25 , a power supply 26 , and a communication bus 27 .

[0119] Those skilled in the art can understand that Figure 3 The structure shown in the figure does not constitute a limitation on the line determination device for an offshore wind farm, and may include more or less components than those shown in the figure.

[0120] The processor 22 implements the line determination method for an offshore wind farm provided by any of the above embodiments by calling instructions stored in the memory 21 .

[0121] The present invention provides a line determination device for an offshore wind farm. The device adopts a tree topology structure to select the current terminal wind turbine in the field as the first wind turbine, and the wind turbine connected to the first wind turbine as the second wind turbine. The cumulative current carrying capacity of the first wind turbine is determined according to the initial wind turbine, the connection mode and the saved current carrying capacity set, and then the corresponding target submarine cable model is determined based on the cumulative current carrying capacity of the first wind turbine. The wind turbine information and the cumulative current carrying capacity corresponding to the first wind turbine are added to the current carrying capacity set, and the target submarine cable model and the line length of the connection between the first wind turbine and the second wind turbine are added to the submarine cable set to determine the line connecting the first wind turbine and the second wind turbine. The cumulative current carrying capacity is determined by selecting each current terminal wind turbine as the first wind turbine, and the corresponding target submarine cable model is determined when the cumulative current carrying capacity is determined. Different target submarine cable models are selected for wind turbines with different cumulative current carrying capacities in the field, so as to determine the preferred route of the entire field. It is avoided that the selection of a single submarine cable model of a ring topology does not lead to a better line result, the flexibility of submarine cable selection is improved, and the line laying achieves a better result.

[0122] Furthermore, the present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by the processor 22, the steps of the above-mentioned method for determining the line of an offshore wind farm are implemented.

[0123] It is understandable that if the method in the above embodiment is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

[0124] For an introduction to a computer-readable storage medium provided by the present invention, please refer to the above method embodiment, which will not be described in detail herein. It has the same beneficial effects as the above offshore wind farm line determination method.

[0125] The above is a detailed introduction to a line determination method, device and medium for an offshore wind farm provided by the present invention. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can be referenced to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0126] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. A method for determining a line of an offshore wind farm, characterized in that: include: According to the fans and connection methods in the field area, the current terminal fan in the field area is selected as the first fan and the fan connected to the first fan is selected as the second fan; wherein, when determining the current carrying capacity of other fans, the connection method of the previous first fan is deleted to obtain the fans and connection methods of the new field area, and the current terminal fan is obtained according to the new field area connection method; Determine the cumulative current carrying capacity of the first fan according to the initial fan in the field area and the connection mode and current carrying capacity set, wherein the current carrying capacity set is a set of recorded fan information and the cumulative current carrying capacity; Determine a target submarine cable model corresponding to the first wind turbine and the second wind turbine according to the accumulated current carrying capacity; Adding the fan information corresponding to the first fan and the accumulated current carrying capacity to the current carrying capacity set; Adding the target submarine cable model and the length of the line connecting the first wind turbine and the second wind turbine to a submarine cable set, and determining the line connecting the first wind turbine and the second wind turbine according to the submarine cable set; The determining, according to the accumulated current carrying capacity, a target submarine cable model to which the first wind turbine and the second wind turbine are connected correspondingly comprises: Sort the current carrying capacity corresponding to multiple submarine cable models from small to large; Select the current carrying capacity corresponding to the two submarine cable models closest to the cumulative current carrying capacity; A target current carrying capacity greater than the cumulative current carrying capacity is selected from the current carrying capacities corresponding to the two submarine cable models to determine the target submarine cable model corresponding to the target current carrying capacity.

2. The method for determining the line of an offshore wind farm according to claim 1, characterized in that: The step of determining the accumulated current carrying capacity of the first fan according to the initial fan in the field area and the connection mode and current carrying capacity set includes: Determine, according to the initial fans and connection modes in the field area, whether the first fan is connected to the fan corresponding to the fan information in the current carrying capacity set; If so, the cumulative current carrying capacity of the first fan is the sum of the cumulative current carrying capacity of the original first fan connected to the first fan when the first fan was previously used as the original second fan and the rated current of the first fan; If not, the accumulated current-carrying capacity of the first fan is the rated current of the first fan.

3. The method for determining the line of an offshore wind farm according to claim 1, characterized in that: The current terminal wind turbines in the selected area include: Selecting the current wind turbine in the site; Determining whether the current fan is connected to multiple fans; If yes, return to the step of selecting the current wind turbine in the field area; If not, the current fan is used as the terminal fan.

4. The method for determining the line of an offshore wind farm according to claim 1, characterized in that: After determining the line connecting the first wind turbine and the second wind turbine according to the submarine cable set, the method further includes: Merging a plurality of lines in the submarine cable assembly that connect the first wind turbine and the second wind turbine; The line of the field area is determined according to the merging result.

5. The method for determining the line of an offshore wind farm according to claim 4, characterized in that: After determining the route of the field area, the method further includes: Check whether the accumulated current carrying capacity of the fans in the field is correct; If correct, the final result information is output; If incorrect, report a fault.

6. The method for determining the line of an offshore wind farm according to claim 1, characterized in that: The fan information is information about the fan number.

7. A line determination device for an offshore wind farm, characterized in that: include: A selection module is used to select the current terminal fan in the field as the first fan and the fan connected to the first fan as the second fan according to the fans and connection methods in the field; wherein, when determining the current carrying capacity of other fans, the connection method of the previous first fan is deleted to obtain the fans and connection methods of the new field, and the current terminal fan is obtained according to the new field connection method; A first determination module, used to determine the cumulative current carrying capacity of the first wind turbine according to the initial wind turbine in the field area and the connection mode and current carrying capacity set, wherein the current carrying capacity set is a set of recorded wind turbine information and the cumulative current carrying capacity; A second determination module is used to determine a target submarine cable model corresponding to the first wind turbine and the second wind turbine according to the accumulated current carrying capacity; An adding module, used for adding the fan information corresponding to the first fan and the accumulated current carrying capacity to the current carrying capacity set; A third determination module is used to add the target submarine cable model and the line length connecting the first wind turbine and the second wind turbine to a submarine cable set, and determine the line connecting the first wind turbine and the second wind turbine according to the submarine cable set; The second determination module is used to sort the current carrying capacity corresponding to multiple submarine cable models from small to large; select the current carrying capacity corresponding to the two submarine cable models closest to the cumulative current carrying capacity; select a target current carrying capacity greater than the cumulative current carrying capacity from the current carrying capacity corresponding to the two submarine cable models to determine the target submarine cable model corresponding to the target current carrying capacity.

8. A line determination device for an offshore wind farm, characterized in that: include: Memory for storing computer programs; A processor, configured to implement the steps of the method for determining a line of an offshore wind farm as claimed in any one of claims 1 to 6 when executing a computer program.

9. A computer-readable storage medium, characterized in that: A computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor, the steps of the line determination method for an offshore wind farm as described in any one of claims 1 to 6 are implemented.

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