Power transmission method and device based on offshore energy island of deep sea, terminal equipment and storage medium

Abstract

The invention discloses an electric power transmission method and device based on a deep and far sea offshore energy island, terminal equipment and a storage medium, and the method comprises the steps: obtaining the position coordinates of each ocean energy power generation field on the sea, the target power generation amount and a regional map, and obtaining the target power generation amount of each ocean energy power generation field according to the position coordinates and the regional map; determining all paths from the ocean energy power plant to the ocean energy island, and the construction cost and the operation and maintenance cost of each path; extracting a path which does not pass through the navigation channel and the forbidden area from all paths as a to-be-selected power transmission path; and then, according to the construction cost and the operation maintenance cost of each to-be-selected power transmission path, taking the to-be-selected power transmission path with the minimum power transmission cost as a target power transmission path, and transmitting the target generating capacity to the offshore energy island according to the target power transmission path. According to the invention, the stability of power transmission can be improved, and the safety risk and economic loss caused by path conflicts can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission, and in particular, to a power transmission method, device, terminal device and storage medium based on a deep - sea and far - sea offshore energy island. Background Art

[0002] With the progress of technology and the reduction of costs, renewable resources such as wind energy and solar energy have developed rapidly. Compared with land, offshore wind energy, solar energy, wave energy and other resources have a larger reserve, which is a huge resource pool that has not been fully developed. In recent years, significant progress has been made in the research and development of marine energy technology, and the development scale of renewable energy represented by offshore wind power has been increasing continuously.

[0003] However, with the saturation of offshore development resources, offshore wind power has gradually developed towards the deep - sea and far - sea direction. Therefore, it is necessary to consider power transmission based on the deep - sea and far - sea, and the resulting power transmission cost has increased linearly. In the existing power transmission schemes, only conventional factors such as distance and topography are often considered. However, with the increasing frequency of marine resource development activities, new restricted areas such as new fishery farming areas and temporary marine scientific research operation areas will appear irregularly, and the navigation routes of merchant ships, fishing boats, etc. will also change dynamically with factors such as seasons and fish distribution. Subsequently, it will lead to the instability of power transmission, as well as safety risks and economic losses brought about by path conflicts. Summary of the Invention

[0004] The present invention provides a power transmission method, device, terminal device and storage medium based on a deep - sea and far - sea offshore energy island, which can improve the stability of power transmission and reduce safety risks and economic losses brought about by path conflicts.

[0005] An embodiment of the present invention provides a power transmission method based on a deep - sea and far - sea offshore energy island, including:

[0006] Obtaining the position coordinates and target power generation of each marine energy power generation field at sea;

[0007] Obtaining the current regional map of the area where the offshore energy island is located, and determining all paths from each marine energy power generation field to the offshore energy island according to the above - mentioned position coordinates and the above - mentioned regional map, and obtaining the construction cost of each path and the operation and maintenance cost of each path; wherein, the above - mentioned regional map marks the shipping lanes and restricted areas;

[0008] For each marine energy power generation field, extracting the paths that do not pass through the shipping lanes and restricted areas from all paths as the candidate power transmission paths according to the above - mentioned regional map;

[0009] Calculating the power transmission cost of each candidate power transmission path according to the construction cost and operation and maintenance cost on each candidate power transmission path;

[0010] Take the candidate power transmission path with the minimum above-mentioned power transmission cost as the target power transmission path, then obtain the target power transmission path corresponding to each ocean energy power generation farm, and transmit the above-mentioned target power generation amount to the above-mentioned offshore energy island according to the above-mentioned target power transmission path.

[0011] Further, the obtaining of the position coordinates and target power generation amount of each ocean energy power generation farm at sea includes:

[0012] Obtain the output steady current accuracy and service life of each type of ocean energy power generation farm at different coordinates and different power generation amounts;

[0013] Calculate the position coordinates and target power generation amount of each ocean energy power generation farm at sea according to the above-mentioned output steady current accuracy and service life.

[0014] Further, calculating the position coordinates and target power generation amount of each ocean energy power generation farm at sea according to the above-mentioned output steady current accuracy and service life includes:

[0015] For each ocean energy power generation farm, obtain different preset layout schemes of the ocean energy power generation farm; wherein, each preset layout scheme corresponds to a set of preset coordinates of the ocean energy power generation farm; each preset layout scheme corresponds to a set of preset power generation amounts of the ocean energy power generation farm;

[0016] For each preset layout scheme, calculate the power generation efficiency function value, power generation stability function value and power generation durability function value of each ocean energy power generation farm according to the preset power generation amount, output steady current accuracy and service life corresponding to each preset scheme;

[0017] Calculate the fitness value corresponding to each preset scheme according to the above-mentioned power generation efficiency function value, power generation stability function value and power generation durability function value;

[0018] Take the preset layout scheme with the maximum above-mentioned fitness value as the target preset layout scheme, and take the coordinates of each type of ocean energy power generation farm under the above-mentioned target preset layout scheme as the above-mentioned position coordinates, and take the power generation amounts of each type of ocean energy power generation farm under the above-mentioned target preset layout scheme as the above-mentioned target power generation amounts.

[0019] Further, after transmitting the above-mentioned target power to the above-mentioned offshore energy island, it further includes:

[0020] Real-time obtain the power margin and load margin of the above-mentioned offshore energy island, and calculate the quotient of the above-mentioned power margin and the above-mentioned load margin;

[0021] When the above-mentioned quotient value is greater than the preset threshold, the electric power corresponding to the difference between the above-mentioned power margin and the above-mentioned load margin is transmitted to the land or stored on the above-mentioned offshore energy island.

[0022] Furthermore, a booster station and a converter station are arranged between the land and the above-mentioned offshore energy island; the offshore distance of the above-mentioned booster station is less than the preset distance threshold; the offshore distance of the above-mentioned converter station is greater than the preset distance threshold.

[0023] Based on the above method embodiment, the present invention correspondingly provides an apparatus embodiment.

[0024] The present invention provides a power transmission device based on a deep-sea and far-sea offshore energy island, including:

[0025] a coordinate and power generation amount acquisition module, a path determination module, a candidate power transmission path extraction module, a power transmission cost calculation module, and a power generation amount transmission module;

[0026] The above-mentioned coordinate and power generation amount acquisition module is used to acquire the position coordinates and target power generation amounts of each ocean energy power generation field at sea.

[0027] The above-mentioned path determination module is used to acquire the current regional map of the area where the offshore energy island is located, and determine all paths from each ocean energy power generation field to the offshore energy island according to the above-mentioned position coordinates and the above-mentioned regional map, and acquire the construction cost of each path and the operation and maintenance cost of each path; wherein, the above-mentioned regional map marks the waterways and restricted areas.

[0028] The above-mentioned candidate power transmission path extraction module is used to extract, for each ocean energy power generation field, the paths that do not pass through the waterways and restricted areas from all paths as candidate power transmission paths.

[0029] The above-mentioned power transmission cost calculation module is used to calculate the power transmission costs of the candidate power transmission paths according to the construction costs and operation and maintenance costs on the candidate power transmission paths.

[0030] The above-mentioned power generation amount transmission module is used to take the candidate power transmission path with the minimum power transmission cost as the target power transmission path, and then obtain the target power transmission path corresponding to each ocean energy power generation field, and transmit the above-mentioned target power generation amount to the above-mentioned offshore energy island according to the above-mentioned target power transmission path.

[0031] Furthermore, the above-mentioned coordinate and power generation amount acquisition module includes:

[0032] a data acquisition unit and a coordinate and power generation amount calculation unit;

[0033] The above data acquisition unit is used to obtain the output steady - flow accuracy and service life of various types of ocean energy power generation farms at different coordinates and different power generation amounts.

[0034] The above coordinate and power generation amount calculation unit is used to calculate the position coordinates and target power generation amount of each ocean energy power generation farm at sea according to the above output steady - flow accuracy and service life.

[0035] Further, the above coordinate and power generation amount calculation unit includes:

[0036] A layout scheme acquisition subunit, a function value calculation subunit, a fitness calculation subunit, and a target preset layout scheme determination subunit;

[0037] The above layout scheme acquisition subunit is used to obtain different preset layout schemes of the ocean energy power generation farm for each ocean energy power generation farm; wherein, each preset layout scheme corresponds to a set of preset coordinates of the ocean energy power generation farm; each preset layout scheme corresponds to a set of preset power generation amounts of the ocean energy power generation farm;

[0038] The above function value calculation subunit is used to calculate the power generation efficiency function value, the power generation stability function value, and the power generation durability function value of each ocean energy power generation farm for each preset layout scheme according to the preset power generation amount, output steady - flow accuracy, and service life corresponding to each preset scheme.

[0039] The above fitness calculation subunit is used to calculate the fitness value corresponding to each preset scheme according to the above power generation efficiency function value, power generation stability function value, and power generation durability function value.

[0040] The above target preset layout scheme determination subunit is used to take the preset layout scheme with the maximum above - mentioned fitness value as the target preset layout scheme, and take the coordinates of each type of ocean energy power generation farm under the above - mentioned target preset layout scheme as the above - mentioned position coordinates, and take the power generation amounts of each type of ocean energy power generation farm under the above - mentioned target preset layout scheme as the above - mentioned target power generation amounts.

[0041] Based on the above method - item embodiment, the present invention correspondingly provides a terminal - device - item embodiment;

[0042] The present invention provides a terminal device, including a processor, a memory, and a computer program stored in the above memory and configured to be executed by the above processor. When the above processor executes the above computer program, it implements a power transmission method based on an ocean - deep - sea energy island according to any one of the embodiments of the present invention.

[0043] Based on the above method - item embodiment, the present invention correspondingly provides a storage - medium - item embodiment;

[0044] The present invention provides a storage medium, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, a power transmission method based on a deep - sea and far - sea offshore energy island according to any embodiment of the present invention is implemented.

[0045] The embodiments of the present invention have the following beneficial effects:

[0046] The present invention provides a power transmission method, device, terminal device, and storage medium based on a deep - sea and far - sea offshore energy island. The method includes: First, obtain the position coordinates and target power generation amounts of each offshore energy power generation farm at sea; Subsequently, obtain the current regional map of the area where the offshore energy island is located. According to the position coordinates and the regional map, determine all paths from each offshore energy power generation farm to the offshore energy island, and obtain the construction cost and operation and maintenance cost of each path; where the regional map marks shipping lanes and restricted areas; Then, for each offshore energy power generation farm, extract from all paths the paths that do not pass through shipping lanes and restricted areas as candidate power transmission paths according to the regional map; Then, calculate the power transmission costs of the candidate power transmission paths based on the construction costs and operation and maintenance costs on each candidate power transmission path; Finally, take the candidate power transmission path with the minimum power transmission cost as the target power transmission path, and then obtain the target power transmission path corresponding to each offshore energy power generation farm, and transmit the target power generation amount to the offshore energy island according to the target power transmission path. Therefore, the present invention first determines the optimal position coordinates and target power generation amounts of various types of offshore energy power generation farms, and then, according to the current regional map and position coordinates, first determines the paths from each offshore energy power generation farm to the offshore energy island, and then, according to the shipping lanes and restricted areas in the regional map, extracts the paths that can be used as candidate power transmission paths, and finally selects the one with the minimum power transmission cost as the final power transmission path. Therefore, this solution fully considers the impacts brought by shipping lanes and restricted areas during power transmission, improves the stability of power transmission, and reduces the safety risks and economic losses caused by path conflicts. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a flowchart of a power transmission method based on a deep - sea and far - sea offshore energy island provided by an embodiment of the present invention.

[0048] Figure 2 is a structural diagram of a power transmission device based on a deep - sea and far - sea offshore energy island provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0049] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0050] As Figure 1 shown, a power transmission method based on a deep - sea and far - sea offshore energy island provided by an embodiment of the present invention includes:

[0051] Step S101: Obtain the position coordinates and target power generation amounts of each offshore energy power generation plant at sea.

[0052] In a preferred embodiment, the obtaining of the position coordinates and target power generation amounts of each offshore energy power generation plant at sea includes:

[0053] Obtain the output steady - current accuracy and service life of each type of offshore energy power generation plant at different coordinates and different power generation amounts.

[0054] Based on the above - mentioned output steady - current accuracy and service life, calculate the position coordinates and target power generation amounts of each offshore energy power generation plant at sea.

[0055] Specifically, first obtain data such as the planned power source type, capacity, configuration scheme, intelligent monitoring, and offshore operation and maintenance. Based on self - developed storage management, query optimization algorithms, etc., perform data loading and conversion processing on the data sources to form a database. Subsequently, based on the relevant data of each type of offshore energy power generation plant in the database, the output steady - current accuracy and service life of each type of offshore energy power generation plant at different coordinates and different power generation amounts can be obtained.

[0056] Specifically, the types of offshore energy power generation plants include: offshore wind farms, offshore photovoltaic farms, and ocean energy power generation plants.

[0057] Preferably, since there will be mutual influence between different power generation plants, in order to keep the power generation input to the energy island stable day and night, it is necessary to consider the position coordinates of each type of offshore energy power generation plant.

[0058] In this preferred embodiment, by obtaining the output steady - current accuracy and service life of each type of offshore energy power generation plant at different coordinates and different power generation amounts, determine the position coordinates and target power generation amounts of each offshore energy power generation plant at sea.

[0059] In another preferred embodiment, based on the above - mentioned output steady - current accuracy and service life, calculating the position coordinates and target power generation amounts of each offshore energy power generation plant at sea includes:

[0060] For each marine energy power plant, obtain different preset layout schemes of the marine energy power plant; among them, each preset layout scheme corresponds to a set of preset coordinates of the marine energy power plant; each preset layout scheme corresponds to a set of preset power generation amounts of the marine energy power plant.

[0061] Specifically, the set of marine energy power generation amounts of different types and capacities can be expressed as:

[0062] X = {X ij |X ij ∈{0, 1}, ∨i ∈ M, j ∈ N}

[0063] In the formula, X represents the set of marine energy power generation amounts of different types and capacities, and X ij represents whether the i-type marine energy power plant generates the j power generation amount. M represents the total number of types of marine energy power plants, and N represents the total power generation amount.

[0064] Specifically, obtain the preset layout schemes P = s1, s2, …, s k , where k represents k different preset layout schemes, and each scheme is a solution vector containing the coordinate information and preset power generation amount of each type of marine energy power plant.

[0065] For each preset layout scheme, calculate the power generation efficiency function value, power generation stability function value, and power generation durability function value of each marine energy power plant according to the preset power generation amount, output steady current accuracy, and service life corresponding to each preset scheme;

[0066] Specifically, calculate the power generation efficiency function value according to the following formula:

[0067]

[0068] In the formula, Z1 represents the power generation efficiency function value, and P 1ij represents the j preset power generation amount generated by the i-type marine energy power plant.

[0069] Calculate the power generation stability function value according to the following formula:

[0070]

[0071] In the formula, Z2 represents the power generation stability function value, and Q 1i represents the maximum output steady current accuracy of the i-type marine energy power plant, and P 2ij represents the output steady current accuracy when the i-type marine energy power plant generates the j preset power generation amount.

[0072] Calculate the power generation durability function value according to the following formula:

[0073]

[0074] In the formula, Z3 represents the value of the power generation durability function, and Q 2i represents the maximum service life of the i-th type of marine energy power generation farm, and P 3ij represents the service life when the i-th type of marine energy power generation farm generates the preset power generation amount j.

[0075] According to the above power generation efficiency function value, power generation stability function value, and power generation durability function value, the fitness value corresponding to each preset scheme is calculated;

[0076] Specifically, the above power generation efficiency function value, power generation stability function value, and power generation durability function value all have corresponding preset weight coefficients. Therefore, the above fitness value is calculated according to the following formula:

[0077] Fitness(s i ) = αZ1(s i ) + βZ2(s i ) + γZ3(s i )

[0078] In the formula, Fitness(s i ) represents the fitness value corresponding to the i-th layout scheme, α represents the weight coefficient corresponding to the power generation efficiency function value, β represents the weight coefficient corresponding to the power generation stability function value, γ represents the weight coefficient corresponding to the power generation durability function value, s i represents the i-th layout scheme, Z1(s i ) represents the power generation efficiency function value under the i-th layout scheme, Z2(s i ) represents the power generation stability function value under the i-th layout scheme, and Z3(s i ) represents the power generation durability function value under the i-th layout scheme.

[0079] Preferably, according to the power consumption demand, the weight coefficients α, β, and γ are respectively set to 40%, 40%, and 20%.

[0080] Take the preset layout scheme with the maximum above fitness value as the target preset layout scheme, and take the coordinates of each type of marine energy power generation farm under the above target preset layout scheme as the above position coordinates, and take the power generation amounts of each type of marine energy power generation farm under the above target preset layout scheme as the above target power generation amounts.

[0081] In this preferred embodiment, according to the above output steady flow accuracy and service life, the position coordinates and target power generation amounts of each marine energy power generation farm at sea are calculated.

[0082] Step S102: Obtain the current regional map of the area where the offshore energy island is located. According to the above position coordinates and the above regional map, determine all the paths from each ocean energy power plant to the offshore energy island, and obtain the construction cost of each path and the operation and maintenance cost of each path; wherein, the above regional map marks the waterways and restricted areas.

[0083] Specifically, the above restricted areas include anchorages.

[0084] Step S103: For each ocean energy power plant, extract from all the paths according to the above regional map the paths that do not pass through waterways and restricted areas as the candidate power transmission paths.

[0085] Specifically, due to the existence of waterways and restricted areas, the power transmission will be affected and the instability will increase. Therefore, when planning the power transmission path, the paths where these areas are located need to be excluded.

[0086] Step S104: Calculate the power transmission cost of each candidate power transmission path according to the construction cost and operation and maintenance cost on each candidate power transmission path.

[0087] Specifically, calculate the power transmission cost of each candidate power transmission path according to the sum of the construction cost and the operation and maintenance cost.

[0088] Step S105: Take the candidate power transmission path with the minimum above-mentioned power transmission cost as the target power transmission path, and then obtain the target power transmission path corresponding to each ocean energy power plant, and transmit the above target power generation amount to the above offshore energy island according to the above target power transmission path.

[0089] In a preferred embodiment, after transmitting the above target power to the above offshore energy island, it further includes:

[0090] Obtain the power margin and load margin of the above offshore energy island in real time, and calculate the quotient of the above power margin and the above load margin;

[0091] In the case where the above quotient is greater than the preset threshold, transmit the power corresponding to the difference between the above power margin and the above load margin to the land or store it on the above offshore energy island.

[0092] Specifically, by monitoring the grid status and the actual situation of power supply and demand on the offshore energy island, the power margin and load margin of the offshore energy island can be obtained in real time. When the difference between the two is greater than the preset threshold, it means that the power on the offshore energy island is sufficient at this time. Therefore, the excess power can be transmitted to the land or directly stored on the offshore energy island. When transmitting the excess power to the land, a centralized transmission or step-by-step transmission scheme can be adopted to transmit it to the land for consumption.

[0093] Specifically, the above preset threshold is 2.

[0094] In this preferred embodiment, by comparing the power margin and the load margin of the offshore energy island, when the difference is greater than the preset threshold, the power corresponding to the above difference is transmitted to the land or stored on the above offshore energy island.

[0095] In another preferred embodiment, a step-up substation and a converter station are provided between the land and the above offshore energy island; the offshore distance of the above step-up substation is less than the preset distance threshold; the offshore distance of the above converter station is greater than the preset distance threshold.

[0096] Specifically, the above preset distance threshold is 30 kilometers.

[0097] Preferably, since the voltage of the electric energy generated by the offshore energy island is relatively low, during long-distance power transmission, a large amount of heat is generated when the current passes through the transmission line, resulting in power loss. The voltage is increased by the step-up substation, thereby reducing the power loss in the transmission line, improving the power transmission efficiency, and ensuring that more electric energy can be effectively transmitted to the land.

[0098] Preferably, energy power generation fields such as offshore wind power usually generate in the form of alternating current, but direct current transmission has advantages such as low loss, high stability, and large transmission capacity for long-distance offshore power transmission. The converter station can convert the boosted alternating current into direct current for long-distance offshore transmission. After reaching near the land, the direct current is then converted back into alternating current and connected to the land alternating current power grid, realizing the conversion between different power transmission methods, giving full play to the respective advantages of AC and DC power transmission, and ensuring that the electric energy can be stably and efficiently transmitted to the land.

[0099] In this preferred embodiment, by providing a step-up substation and a converter station between the land and the above offshore energy island, the power transmission efficiency is further improved.

[0100] Based on the above method item embodiments, the present invention correspondingly provides device item embodiments.

[0101] As Figure 2 shown, an embodiment of the present invention provides a power transmission device based on a deep-sea and far-sea offshore energy island, including:

[0102] A coordinate and power generation amount acquisition module, a path determination module, a candidate power transmission path extraction module, a power transmission cost calculation module, and a power generation amount transmission module;

[0103] The above coordinate and power generation amount acquisition module is used to acquire the position coordinates and the target power generation amount of each offshore energy power generation field at sea;

[0104] The above-mentioned path determination module is used to obtain the current regional map of the area where the offshore energy island is located, determine all paths from each marine energy power plant to the offshore energy island according to the above-mentioned position coordinates and the above-mentioned regional map, and obtain the construction cost of each path and the operation and maintenance cost of each path; wherein, the above-mentioned regional map is marked with shipping lanes and restricted areas.

[0105] The above-mentioned candidate power transmission path extraction module is used to, for each marine energy power plant, extract from all paths according to the above-mentioned regional map the paths that do not pass through shipping lanes and restricted areas as candidate power transmission paths.

[0106] The above-mentioned power transmission cost calculation module is used to calculate the power transmission cost of each candidate power transmission path according to the construction cost and operation and maintenance cost on each candidate power transmission path.

[0107] The above-mentioned power generation quantity transmission module is used to take the candidate power transmission path with the minimum power transmission cost as the target power transmission path, and then obtain the target power transmission path corresponding to each marine energy power plant, and transmit the above-mentioned target power generation quantity to the above-mentioned offshore energy island according to the above-mentioned target power transmission path.

[0108] Furthermore, the above-mentioned coordinate and power generation quantity acquisition module includes:

[0109] A data acquisition unit and a coordinate and power generation quantity calculation unit;

[0110] The above-mentioned data acquisition unit is used to obtain the output steady current accuracy and service life of each type of marine energy power plant at different coordinates and different power generation quantities.

[0111] The above-mentioned coordinate and power generation quantity calculation unit is used to calculate the position coordinates and target power generation quantity of each marine energy power plant at sea according to the above-mentioned output steady current accuracy and service life.

[0112] Furthermore, the above-mentioned coordinate and power generation quantity calculation unit includes:

[0113] A layout scheme acquisition subunit, a function value calculation subunit, a fitness calculation subunit, and a target preset layout scheme determination subunit;

[0114] The above-mentioned layout scheme acquisition subunit is used to, for each marine energy power plant, obtain different preset layout schemes of the marine energy power plant; wherein, each preset layout scheme corresponds to a set of preset coordinates of the marine energy power plant; each preset layout scheme corresponds to a set of preset power generation quantities of the marine energy power plant.

[0115] The above function value calculation subunit is used to calculate the power generation efficiency function value, power generation stability function value, and power generation durability function value of each ocean energy power plant for each preset layout scheme according to the preset power generation amount, output steady current accuracy, and service life corresponding to each preset scheme;

[0116] The above fitness calculation subunit is used to calculate the fitness value corresponding to each preset scheme according to the above power generation efficiency function value, power generation stability function value, and power generation durability function value;

[0117] The above target preset layout scheme determination subunit is used to use the preset layout scheme with the largest above fitness value as the target preset layout scheme, and use the coordinates of each type of ocean energy power plant under the above target preset layout scheme as the above position coordinates, and use the power generation amount of each type of ocean energy power plant under the above target preset layout scheme as the above target power generation amount.

[0118] It should be noted that the device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, 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. In addition, in the attached drawings of the device embodiments provided by the present invention, the connection relationship between modules indicates that they have a communication connection, which can be specifically implemented as one or more communication buses or signal lines. Those of ordinary skill in the art can understand and implement without creative efforts. The above schematic diagram is only an example of a power transmission device based on a deep-sea and far-sea offshore energy island, and does not constitute a limitation on a power transmission device based on a deep-sea and far-sea offshore energy island, and may include more or fewer components than shown in the figure, or combine some components, or different components.

[0119] Based on the above method item embodiments, the present invention correspondingly provides terminal device item embodiments.

[0120] Another embodiment of the present invention provides a terminal device, including a processor, a memory, and a computer program stored in the above memory and configured to be executed by the above processor. When the above processor executes the above computer program, it implements the method for power transmission based on a deep-sea and far-sea offshore energy island in any one of the embodiments of the present invention.

[0121] Exemplarily, in this embodiment, the above computer program may be divided into one or more modules, and the above one or more modules are stored in the above memory and executed by the above processor to implement the present invention. The above one or more module elements may be a series of computer program instruction segments capable of performing specific functions, and these instruction segments are used to describe the execution process of the above computer program in the above device;

[0122] The above terminal device may be a computing device such as a desktop computer, a notebook, a palm computer, and a cloud server. The above device may include, but is not limited to, a processor and a memory;

[0123] The so-called processor may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The above processor is the control center of the above device, and connects various parts of the entire device through various interfaces and lines;

[0124] The above memory may be used to store the above computer program and / or module. The above processor realizes various functions of the above device by running or executing the computer program and / or module stored in the above memory, and by calling the data stored in the memory. The above memory may mainly include a program storage area and a data storage area. Among them, the program storage area may store an operating system, application programs required for at least one function, etc.; In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0125] Based on the above method item embodiment, the present invention correspondingly provides a storage medium item embodiment.

[0126] Another embodiment of the present invention provides a storage medium. The storage medium includes a stored computer program. When the computer program runs, it controls the device where the storage medium is located to execute a power transmission method based on a deep - sea and far - sea offshore energy island according to any embodiment of the present invention.

[0127] In this embodiment, the storage medium is a computer - readable storage medium. The computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer - readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read - only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc.

[0128] Compared with the prior art, by implementing the above - mentioned various embodiments of the present invention, the stability of power transmission can be improved, and the safety risks and economic losses caused by path conflicts are reduced.

[0129] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A method for transmitting electric power based on a deep sea offshore energy island, characterized in that: include: Obtain the location coordinates and target power generation of each marine energy power plant at sea; Obtain a current regional map of the area where the offshore energy island is located, determine all paths from each marine energy power plant to the offshore energy island based on the location coordinates and the regional map, and obtain the construction cost of each path and the operation and maintenance cost of each path; wherein the regional map identifies waterways and prohibited areas; For each marine energy power plant, extracting from all paths according to the regional map, paths that do not pass through waterways and prohibited areas as candidate power transmission paths; Calculate the power transmission cost of each of the selected power transmission paths according to the construction cost and operation and maintenance cost of each of the selected power transmission paths; The selected power transmission path with the smallest power transmission cost is taken as the target power transmission path, and then the target power transmission path corresponding to each marine energy power plant is obtained, and the target power generation is transmitted to the offshore energy island according to the target power transmission path.

2. The method for transmitting electric power based on a deep sea offshore energy island according to claim 1, characterized in that: The obtaining of the location coordinates and target power generation of each marine energy power plant at sea includes: Obtain the output steady flow accuracy and service life of various types of marine energy power plants at different coordinates and different power generation; According to the output steady-current accuracy and service life, the position coordinates of each ocean energy power plant at sea and the target power generation are calculated.

3. The method for transmitting electric power based on a deep sea offshore energy island according to claim 2, characterized in that: According to the output steady flow accuracy and service life, the location coordinates of each marine energy power plant at sea and the target power generation are calculated, including: For each ocean energy power plant, different preset layout schemes of the ocean energy power plant are obtained; wherein each preset layout scheme corresponds to a set of preset coordinates of the ocean energy power plant; and each preset layout scheme corresponds to a set of preset power generation of the ocean energy power plant; For each preset layout scheme, according to the preset power generation, output steady flow accuracy and service life corresponding to each preset scheme, the power generation efficiency function value, power generation stability function value and power generation persistence function value of each marine energy power plant are calculated; Calculate the fitness value corresponding to each preset scheme according to the power generation efficiency function value, the power generation stability function value and the power generation persistence function value; The preset layout scheme with the largest fitness value is used as the target preset layout scheme, the coordinates of each type of ocean energy power plant under the target preset layout scheme are used as the position coordinates, and the power generation of each type of ocean energy power plant under the target preset layout scheme is used as the target power generation.

4. The method for transmitting electric power based on a deep sea offshore energy island according to claim 3, characterized in that: After the target power is transmitted to the offshore energy island, the method further comprises: Acquire the power margin and load margin of the offshore energy island in real time, and calculate the quotient of the power margin and the load margin; When the quotient is greater than a preset threshold, the power corresponding to the difference between the power margin and the load margin is transmitted to land or stored on the offshore energy island.

5. The method for transmitting electric power based on a deep sea offshore energy island according to claim 4, characterized in that: A booster station and a converter station are arranged between the land and the offshore energy island; the offshore distance of the booster station is less than a preset distance threshold; the offshore distance of the converter station is greater than a preset distance threshold.

6. A power transmission device based on a deep sea offshore energy island, characterized in that: include: A coordinate and power generation acquisition module, a path determination module, a candidate power transmission path extraction module, a power transmission cost calculation module, and a power generation transmission module; The coordinate and power generation acquisition module is used to obtain the position coordinates and target power generation of each marine energy power plant at sea; The path determination module is used to obtain the current regional map of the area where the offshore energy island is located, determine all paths from each marine energy power plant to the offshore energy island according to the location coordinates and the regional map, and obtain the construction cost of each path and the operation and maintenance cost of each path; wherein the regional map identifies the waterway and the prohibited area; The candidate power transmission path extraction module is used to extract, for each marine energy power plant, from all paths according to the regional map, paths that do not pass through waterways and prohibited areas as candidate power transmission paths; The power transmission cost calculation module is used to calculate the power transmission cost of each power transmission path to be selected according to the construction cost and operation and maintenance cost on each power transmission path to be selected; The power generation transmission module is used to take the candidate power transmission path with the smallest power transmission cost as the target power transmission path, and then obtain the target power transmission path corresponding to each marine energy power plant, and transmit the target power generation to the offshore energy island according to the target power transmission path.

7. The power transmission device based on the deep sea offshore energy island according to claim 6 is characterized in that: The coordinate and power generation acquisition module includes: Data acquisition unit, and coordinate and power generation calculation unit; The data acquisition unit is used to obtain the output steady flow accuracy and service life of various types of marine energy power plants at different coordinates and different power generation amounts; The coordinate and power generation calculation unit is used to calculate the position coordinates and target power generation of each ocean energy power plant at sea based on the output steady flow accuracy and service life.

8. The power transmission device based on the deep sea offshore energy island according to claim 7 is characterized in that: The coordinate and power generation calculation unit comprises: A layout scheme acquisition subunit, a function value calculation subunit, a fitness calculation subunit, and a target preset layout scheme determination subunit; The layout scheme acquisition subunit is used to acquire different preset layout schemes of the ocean energy power plant for each ocean energy power plant; wherein each preset layout scheme corresponds to a set of preset coordinates of the ocean energy power plant; each preset layout scheme corresponds to a set of preset power generation of the ocean energy power plant; The function value calculation subunit is used to calculate the power generation efficiency function value, power generation stability function value and power generation persistence function value of each ocean energy power plant for each preset layout scheme according to the preset power generation, output steady current accuracy and service life corresponding to each preset scheme; The fitness calculation subunit is used to calculate the fitness value corresponding to each preset scheme according to the power generation efficiency function value, the power generation stability function value and the power generation persistence function value; The target preset layout scheme determination subunit is used to take the preset layout scheme with the largest fitness value as the target preset layout scheme, and take the coordinates of each type of ocean energy power plant under the target preset layout scheme as the position coordinates, and take the power generation of each type of ocean energy power plant under the target preset layout scheme as the target power generation.

9. A terminal device, characterized in that: It comprises a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, it implements a method for transmitting electric power based on a deep-sea offshore energy island as described in any one of claims 1 to 5.

10. A storage medium, characterized in that: The storage medium includes a stored computer program, wherein when the computer program is running, the device where the storage medium is located is controlled to execute a power transmission method based on a deep-sea offshore energy island as described in any one of claims 1 to 5.

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