A method and device for optimizing a coastal grounding electrode arrangement based on a multi-layer soil structure, a terminal device and a storage medium

Abstract

The application discloses a kind of based on multi-layer soil structure's coastal grounding electrode arrangement optimization method, device, terminal equipment and storage medium, method includes: obtaining different horizontal layered coastal soil resistivity, seawater resistivity, coastline slope and initial each coastal grounding electrode arrangement scheme;Through grounding electrode soil simulation model simulation, the maximum step voltage on the ground of each coastal grounding electrode arrangement scheme under the coastal grounding electrode is calculated and the current density of each grounding electrode feeder rod;The correlation coefficient of both is calculated, and the weight coefficient of the current density of each grounding electrode feeder rod is calculated based on correlation coefficient;Select a coastal grounding electrode arrangement scheme to calculate adjustment coefficient;Based on adjustment coefficient adjustment optimization scheme, obtain the coastal grounding electrode arrangement scheme that meets the requirements. By implementing the application, the coastal grounding electrode arrangement scheme can be adjusted and optimized to obtain the coastal grounding electrode arrangement scheme that meets the requirements.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of research on coastal grounding electrode arrangement, and particularly relates to a coastal grounding electrode arrangement optimization method and device based on a multi-layer soil structure, a terminal equipment and a storage medium. BACKGROUND

[0002] A direct current grounding electrode is an important supporting facility for ensuring safe, reliable and stable operation of a direct current transmission system. In recent years, with the development of direct current transmission technology and the vigorous development of offshore wind power and island wind power, direct current transmission technology is gradually widely applied to offshore and island wind power transmission projects. The selection of a converter station site and a grounding electrode site is relatively close to the coast. The coastal direct current grounding electrode technology has great differences from conventional land direct current grounding electrode technology, especially in soil resistivity testing near the coast and soil layering modeling analysis, and how to combine the soil model to carry out research on the optimal arrangement of the coastal grounding electrode. At present, the research and engineering construction of inland grounding electrodes are relatively mature, but there is a lack of research on the arrangement of coastal grounding electrodes. SUMMARY

[0003] The embodiment of the present application provides a coastal grounding electrode arrangement optimization method and device based on a multi-layer soil structure, a terminal equipment and a storage medium. The present application can adjust and optimize the coastal grounding electrode arrangement scheme based on an adjustment coefficient to obtain a required coastal grounding electrode arrangement scheme.

[0004] An embodiment of the present application provides a coastal grounding electrode arrangement optimization method based on a multi-layer soil structure, comprising:

[0005] Obtain the soil resistivity of the coastal soil in different horizontal layers, the resistivity of seawater, the slope of the coastline and the initial coastal grounding electrode arrangement scheme;

[0006] Based on the coastal grounding electrode arrangement scheme, input the soil resistivity of the coastal soil in different horizontal layers, the resistivity of seawater and the slope of the coastline into a preset grounding electrode soil simulation model. The grounding electrode soil simulation model is used to simulate and calculate the maximum step voltage of the coastal grounding electrode and the current density of each grounding electrode feeder rod under each coastal grounding electrode arrangement scheme.

[0007] Based on all the maximum step voltages, a maximum step voltage vector is constructed. Based on the current density of the grounding electrode feeder rod, a current density vector of the grounding electrode feeder rod is constructed. The correlation coefficient between the maximum step voltage vector and the current density vector of the grounding electrode feeder rod is calculated, and a correlation coefficient matrix is constructed. Based on the correlation coefficient matrix, the weight coefficient of the current density of each grounding electrode feeder rod under each coastal grounding electrode arrangement scheme is calculated.

[0008] Select a coastal grounding electrode arrangement scheme, and calculate the adjustment coefficient of the selected coastal grounding electrode arrangement scheme based on the weighting coefficient of the current density of each grounding electrode feeder under all coastal grounding electrode arrangement schemes, and the current density of each grounding electrode feeder under the selected coastal grounding electrode arrangement scheme.

[0009] If the adjustment coefficient meets the preset requirements, a coastal grounding electrode arrangement scheme that meets the requirements is obtained. If the adjustment coefficient does not meet the preset requirements, the selected coastal grounding electrode arrangement scheme is adjusted and optimized until the optimized coastal grounding electrode arrangement scheme meets the requirements.

[0010] Furthermore, the coastal grounding electrode arrangement scheme includes: the placement position of each grounding electrode feeder rod;

[0011] The placement of the grounding electrode feeder varies in different coastal grounding electrode layout schemes.

[0012] Furthermore, before simulating and calculating the maximum surface step voltage of the coastal grounding electrodes and the current density of each grounding electrode feeder rod under various coastal grounding electrode layout schemes using a grounding electrode soil simulation model, the following steps are also included:

[0013] The grounding resistance of the coastal grounding electrodes under various coastal grounding electrode arrangement schemes was calculated by simulation.

[0014] If the grounding resistance is greater than a preset value, a prompt message will be generated indicating that the placement of the grounding electrode feed rod or the position of the grounding electrode needs to be adjusted.

[0015] Furthermore, the correlation coefficient between the maximum step voltage vector and the current density vector of the grounding electrode feed rod is calculated using the following formula:

[0016]

[0017] In the formula, P jk U is the correlation coefficient between the maximum step voltage vector and the current density vector of the grounding electrode feed rod, m is the total grounding electrode arrangement scheme, j is the j-th grounding electrode arrangement scheme, n is the total number of grounding electrode feed rods, k is the k-th grounding electrode feed rod, and U j ′ For U j / U1, U j V represents the maximum step voltage on the ground surface for the j-th grounding electrode arrangement scheme, and U1 represents the maximum step voltage on the ground surface for the 1-th grounding electrode arrangement scheme. jk ′ For V jk / V 1k V jk Let V be the current density of the feed rod of the k-th grounding electrode under the j-th grounding electrode arrangement scheme.1k is the current density of the first grounding electrode feeding rod under the first grounding electrode arrangement scheme, d is an adjustable coefficient.

[0018] Further, the weight coefficient of the current density of each grounding electrode feeding rod under each coastal grounding electrode arrangement scheme is calculated through the following formula:

[0019]

[0020] In the formula, z k is the weight coefficient of the current density of each grounding electrode feeding rod under each coastal grounding electrode arrangement scheme.

[0021] Further, the adjustment coefficient of the selected coastal grounding electrode arrangement scheme is calculated through the following formula:

[0022]

[0023] In the formula, ε j is the adjustment coefficient of the jth coastal grounding electrode arrangement scheme.

[0024] Further, whether the adjustment coefficient meets the preset requirement is judged through the following way:

[0025] If the adjustment coefficient is greater than 0 and less than the preset value, it is determined that the adjustment coefficient meets the preset requirement.

[0026] If the adjustment coefficient is greater than the preset value and less than 1, it is determined that the adjustment coefficient does not meet the preset requirement.

[0027] Another embodiment of the present application provides a binary mixed gas insulation strength evaluation device, which comprises a data acquisition module, a simulation calculation module, a weight coefficient calculation module, an adjustment coefficient calculation module and an adjustment optimization module.

[0028] The data acquisition module is used to acquire the soil resistivity of different horizontal layers of the coast, the resistivity of seawater, the slope of the coastline and the initial each coastal grounding electrode arrangement scheme.

[0029] The simulation calculation module is used to input the soil resistivity of different horizontal layers of the coast, the resistivity of seawater and the slope of the coastline into a preset grounding electrode soil simulation model based on each coastal grounding electrode arrangement scheme, and simulate and calculate the maximum step voltage on the ground of the coastal grounding electrode and the current density of each grounding electrode feeding rod under each coastal grounding electrode arrangement scheme through the grounding electrode soil simulation model.

[0030] The weight coefficient calculation module is configured to construct a maximum step voltage vector based on all ground surface maximum step voltages, construct a current density vector of the ground electrode feeding rod based on current densities of all ground electrode feeding rods, calculate a correlation coefficient between the maximum step voltage vector and the current density vector of the ground electrode feeding rod, and construct a correlation coefficient matrix, and calculate the weight coefficient of the current density of each ground electrode feeding rod under each coastal ground electrode arrangement scheme based on the correlation coefficient matrix.

[0031] The adjustment coefficient calculation module is configured to select one coastal ground electrode arrangement scheme, calculate an adjustment coefficient of the selected coastal ground electrode arrangement scheme according to the weight coefficient of the current density of each ground electrode feeding rod under all coastal ground electrode arrangement schemes and the current density of each ground electrode feeding rod under the selected coastal ground electrode arrangement scheme.

[0032] The adjustment optimization module is configured to obtain a required coastal ground electrode arrangement scheme if the adjustment coefficient meets a preset requirement, and perform adjustment optimization on the selected coastal ground electrode arrangement scheme until the optimized coastal ground electrode arrangement scheme meets the requirement if the adjustment coefficient does not meet the preset requirement.

[0033] Another embodiment of the present application provides a terminal device, which comprises a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and the processor implements the method for optimizing arrangement of a coastal ground electrode based on a multi-layer soil structure according to any one of the embodiments when executing the computer program.

[0034] Another embodiment of the present application provides a storage medium, which comprises a stored computer program, wherein the device where the storage medium is located executes the method for optimizing arrangement of a coastal ground electrode based on a multi-layer soil structure according to any one of the embodiments when the computer program is running.

[0035] The present application has the following beneficial effects:

[0036] The application discloses a coastal grounding electrode arrangement optimization method and device based on a multi-layer soil structure, a terminal equipment and a storage medium. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 FIG. 1 is a flowchart of a coastal grounding electrode arrangement optimization method based on a multi-layer soil structure according to an embodiment of the application.

[0038] Figure 2 FIG. 2 is a schematic diagram of a coastal grounding electrode arrangement according to an embodiment of the application.

[0039] Figure 3 FIG. 3 is a schematic diagram of a coastal grounding electrode soil simulation model according to an embodiment of the application.

[0040] Figure 4 FIG. 4 is a structural schematic diagram of a coastal grounding electrode arrangement optimization method based on a multi-layer soil structure according to an embodiment of the application. DETAILED DESCRIPTION

[0041] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the use of the terms "including," "comprising," "having" and "with" in this specification and the appended claims are used synonymously to encompass situations where something can be in addition to or some embodiments can not have it; the terms "first," "second," "third," etc., are used merely as identifiers to distinguish between different objects and are not intended to be construed as designating a particular order or sequence unless specifically stated otherwise.

[0043] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0044] As Figure 1 shown is a flowchart of a method for optimizing a coastal grounding electrode arrangement based on a multi-layer soil structure according to an embodiment of the present application, comprising the following steps:

[0045] Step S1, obtaining the soil resistivity of different horizontal layers of coastal soil, the resistivity of seawater, the slope of the coastline, and the initial arrangement of each coastal grounding electrode;

[0046] In the present application, the soil resistivity of different horizontal layers of coastal soil is obtained by a soil resistance test method, and the resistivity of seawater and the slope of the coastline are also obtained by testing and measurement, and the initial arrangement of each coastal grounding electrode is obtained, thereby providing a data basis for subsequent simulation calculation;

[0047] In a preferred embodiment, the arrangement of the coastal grounding electrode includes the arrangement position of each grounding electrode feeder rod.

[0048] The arrangement positions of the grounding electrode feeder rods in different coastal grounding electrode arrangements are different.

[0049] Specifically, the arrangement of the coastal grounding electrode is as shown in Figure 2 .

[0050] Step S2, based on each coastal grounding electrode arrangement, inputting the soil resistivity of different horizontal layers of coastal soil, the resistivity of seawater, and the slope of the coastline into a preset grounding electrode soil simulation model, and simulating and calculating the maximum step voltage on the ground surface of the coastal grounding electrode and the current density of each grounding electrode feeder rod under each coastal grounding electrode arrangement by the grounding electrode soil simulation model.

[0051] In the present application, the tested resistivity of each level of layered coastal soil, the resistivity of seawater and the slope of the coastline between the seawater and the coast are input into the grounding soil simulation model, and the maximum step voltage on the ground of the coastal grounding electrode under each coastal grounding electrode arrangement scheme and the current density of each grounding electrode feeder rod under each coastal grounding electrode arrangement scheme are simulated and calculated by using the simulation software;

[0052] Specifically, the grounding soil simulation model is as shown in Figure 3 ;

[0053] Illustratively, the simulation software can be CDEGS software and ANSYS software.

[0054] In a preferred embodiment, before the maximum step voltage on the ground of the coastal grounding electrode under each coastal grounding electrode arrangement scheme and the current density of each grounding electrode feeder rod under each coastal grounding electrode arrangement scheme are simulated and calculated by the grounding soil simulation model, it further comprises:

[0055] simulating and calculating the grounding resistance of the coastal grounding electrode under each coastal grounding electrode arrangement scheme.

[0056] In the case where the grounding resistance is greater than a preset value, a prompt information is generated that the layout position of the coastal grounding electrode feeder rod or the position of the coastal grounding electrode needs to be adjusted.

[0057] Illustratively, the preset value can be 1, and when the grounding resistance is less than 1, a prompt information is generated that the layout position of the grounding electrode feeder rod or the position of the grounding electrode needs to be adjusted.

[0058] Step S3, based on all the maximum step voltages, a maximum step voltage vector is constructed, based on the current densities of all the grounding electrode feeder rods, a current density vector of the grounding electrode feeder rods is constructed, a correlation coefficient between the maximum step voltage vector and the current density vector of the grounding electrode feeder rods is calculated, and a correlation coefficient matrix is constructed, based on the correlation coefficient matrix, the weight coefficients of the current densities of the grounding electrode feeder rods under each coastal grounding electrode arrangement scheme are calculated.

[0059] In the present application, based on the simulated maximum step voltage on the ground of the coastal grounding electrode under each coastal grounding electrode arrangement scheme, a maximum step voltage vector is constructed, based on the simulated current densities of the grounding electrode feeder rods under each coastal grounding electrode arrangement scheme, a current density vector of the grounding electrode feeder rods is constructed, a correlation coefficient between the maximum step voltage vector and the current density vector of the grounding electrode feeder rods is calculated by using the calculation formula of the correlation coefficient, and a correlation coefficient matrix is constructed, based on the correlation coefficient matrix, the weight coefficients of the current densities of the grounding electrode feeder rods under each coastal grounding electrode arrangement scheme are calculated by using the calculation formula of the weight coefficients.

[0060] In a preferred embodiment, the correlation coefficient between the maximum step voltage vector and the current density vector of the ground electrode feeding rod is calculated by the following formula:

[0061]

[0062] wherein P jk is the correlation coefficient between the maximum step voltage vector and the current density vector of the ground electrode feeding rod, m is the total ground electrode arrangement scheme, j is the jth ground electrode arrangement scheme, n is the total number of ground electrode feeding rods, k is the kth ground electrode feeding rod, U j ′ is U j / U1, U j is the maximum step voltage on the ground surface of the jth ground electrode arrangement scheme, U1 is the maximum step voltage on the ground surface of the 1st ground electrode arrangement scheme, V jk ′ is V jk / V 1k , V jk is the current density of the kth ground electrode feeding rod under the jth ground electrode arrangement scheme, V 1k is the current density of the 1st ground electrode feeding rod under the 1st ground electrode arrangement scheme, and d is an adjustable coefficient.

[0063] In another preferred embodiment, the weight coefficient of the current density of each ground electrode feeding rod under each coastal ground electrode arrangement scheme is calculated by the following formula:

[0064]

[0065] wherein z k is the weight coefficient of the current density of each ground electrode feeding rod under each coastal ground electrode arrangement scheme.

[0066] Step S4, selecting a coastal ground electrode arrangement scheme, calculating the adjustment coefficient of the selected coastal ground electrode arrangement scheme according to the weight coefficient of the current density of each ground electrode feeding rod under all coastal ground electrode arrangement schemes and the current density of each ground electrode feeding rod under the selected coastal ground electrode arrangement scheme;

[0067] In the initial various coastal ground electrode arrangement schemes of the present application, selecting a coastal ground electrode arrangement scheme, calculating the adjustment coefficient of the selected coastal ground electrode arrangement scheme according to the weight coefficient of the current density of each ground electrode feeding rod under all coastal ground electrode arrangement schemes and the current density of each ground electrode feeding rod under the selected coastal ground electrode arrangement scheme through the calculation formula of the adjustment coefficient;

[0068] In a preferred embodiment, the adjustment coefficient of the selected coastal grounding electrode arrangement scheme is calculated by the following formula:

[0069]

[0070] In the formula, ε j is the adjustment coefficient of the jth coastal grounding electrode arrangement scheme.

[0071] In step S5, if the adjustment coefficient meets the preset requirement, a required coastal grounding electrode arrangement scheme is obtained; if the adjustment coefficient does not meet the preset requirement, the selected coastal grounding electrode arrangement scheme is adjusted and optimized until the optimized coastal grounding electrode arrangement scheme meets the requirement.

[0072] In the present application, whether the calculated adjustment coefficient of the selected coastal grounding electrode arrangement scheme meets the preset requirement is judged; if the adjustment coefficient meets the preset requirement, a required coastal grounding electrode arrangement scheme is obtained; if the adjustment coefficient does not meet the preset requirement, the selected coastal grounding electrode arrangement scheme needs to be adjusted and optimized to obtain an adjusted and optimized coastal grounding electrode arrangement scheme, and the adjustment coefficient of the adjusted and optimized coastal grounding electrode arrangement scheme is recalculated; whether the selected coastal grounding electrode arrangement scheme needs to be continuously adjusted and optimized is judged according to whether the newly calculated adjustment coefficient meets the preset requirement, and this process is repeatedly executed until the adjustment coefficient meets the preset requirement, and a required grounding electrode arrangement scheme is obtained.

[0073] In a preferred embodiment, whether the adjustment coefficient meets the preset requirement is judged by the following method:

[0074] If the adjustment coefficient is greater than 0 and less than a preset value, it is determined that the adjustment coefficient meets the preset requirement.

[0075] If the adjustment coefficient is greater than the preset value and less than 1, it is determined that the adjustment coefficient does not meet the preset requirement.

[0076] On the basis of the above-mentioned method embodiment, the present application correspondingly provides a device embodiment;

[0077] As Figure 4 shown in FIG. 1, which is a structure schematic diagram of a device for optimizing a coastal grounding electrode arrangement based on a multi-layer soil structure according to an embodiment of the present application, comprising:

[0078] a data acquisition module, a simulation calculation module, a weight coefficient calculation module, an adjustment coefficient calculation module and an adjustment and optimization module.

[0079] The data acquisition module is configured to acquire the soil resistivity of different horizontal layers of the coast, the resistivity of seawater, the slope of the coastline and the initial arrangement schemes of the coastal grounding electrodes.

[0080] The simulation calculation module is configured to input different horizontally layered coastal soil resistivity, seawater resistivity and coastline slope into a preset grounding electrode soil simulation model based on each coastal grounding electrode arrangement scheme, and simulate and calculate the maximum step voltage on the ground surface of the coastal grounding electrode and the current density of each grounding electrode feeder rod under each coastal grounding electrode arrangement scheme through the grounding electrode soil simulation model.

[0081] The weight coefficient calculation module is configured to construct a maximum step voltage vector based on all the maximum step voltages, construct a current density vector of the grounding electrode feeder rod based on the current density of all the grounding electrode feeder rods, calculate the correlation coefficient between the maximum step voltage vector and the current density vector of the grounding electrode feeder rod, and construct a correlation coefficient matrix, and calculate the weight coefficient of the current density of each grounding electrode feeder rod under each coastal grounding electrode arrangement scheme based on the correlation coefficient matrix.

[0082] The adjustment coefficient calculation module is configured to select one coastal grounding electrode arrangement scheme, calculate the adjustment coefficient of the selected coastal grounding electrode arrangement scheme according to the weight coefficient of the current density of each grounding electrode feeder rod under all the coastal grounding electrode arrangement schemes and the current density of each grounding electrode feeder rod under the selected coastal grounding electrode arrangement scheme.

[0083] The adjustment optimization module is configured to obtain a required coastal grounding electrode arrangement scheme if the adjustment coefficient meets the preset requirement, or to adjust and optimize the selected coastal grounding electrode arrangement scheme until the optimized coastal grounding electrode arrangement scheme meets the requirement if the adjustment coefficient does not meet the preset requirement.

[0084] It can be understood that the above-mentioned device item embodiments correspond to the method item embodiments of the present application, and can realize the coastal grounding electrode arrangement optimization method based on the multi-layer soil structure provided by any one of the above-mentioned method item embodiments.

[0085] It should be noted that the above-mentioned device embodiments are only schematic, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., they can be located in one place, or distributed on multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the present embodiment scheme. In addition, the connection relationship between the modules in the device embodiment provided by the present application indicates that there is a communication connection between them, which can be realized as one or more communication buses or signal lines. Those skilled in the art can understand and implement it without creative labor.

[0086] Those skilled in the art can clearly understand that, for the convenience and brevity, the specific working process of the above-described device can refer to the corresponding process in the foregoing method embodiments, and will not be described here.

[0087] Another preferred embodiment of the present application provides a terminal device, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the method for optimizing a coastal grounding electrode arrangement based on a multi-layer soil structure according to any one of the foregoing embodiments when executing the computer program.

[0088] It should be noted that the terminal device mentioned herein can be a desktop computer, a notebook computer, a palm computer, a cloud server, and the like. The terminal device can include, but is not limited to, a processor and a memory. Those skilled in the art can understand that, for example, the terminal device can also include an input / output device, a network access device, a bus, and the like.

[0089] The processor can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor and the like. The processor is the control center of the terminal device, and is connected to all parts of the terminal device through various interfaces and lines.

[0090] The memory can be used to store the computer program, and the processor realizes various functions of the terminal device by running or executing the computer program stored in the memory, and calling data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required by a function, and the like; and the data storage area can store data created according to the use of the terminal device, and the like. In addition, the memory can include a high-speed random access memory, and can also include a 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 disk storage device, a flash memory device, or other volatile solid-state memory devices.

[0091] Another preferred embodiment of the present application provides a storage medium comprising a stored computer program, wherein the storage medium is caused to perform any one of the methods for optimizing a multi-layer soil structure based coastal grounding electrode arrangement according to the present application when the computer program is run.

[0092] The storage medium is a computer readable storage medium, and the computer program is stored in the computer readable storage medium. When the computer program is executed by a processor, the steps of each method embodiment described above can be implemented. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or some intermediate forms. The computer readable medium can include any entity or device capable of carrying the computer program code, recording medium, U disk, 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.

[0093] The above describes the preferred embodiments of the present application. It should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which are also considered within the scope of protection of the present application.

Claims

1. A method for optimizing a coastal grounding electrode arrangement based on a multi-layered soil structure, characterized by, The method comprises the following steps: obtaining the soil resistivity of different horizontal layers of the coast, the resistivity of seawater, the slope of the coastline and initial arrangement schemes of the coast grounding electrodes; based on the arrangement schemes of the coast grounding electrodes, inputting the soil resistivity of different horizontal layers of the coast, the resistivity of seawater and the slope of the coastline into a preset grounding soil simulation model, and simulating and calculating the maximum step voltage on the ground of the coast grounding electrode and the current density of each grounding electrode feeding rod under each arrangement scheme of the coast grounding electrode by the grounding soil simulation model; based on all the maximum step voltages, constructing a maximum step voltage vector, based on the current density of all the grounding electrode feeding rods, constructing a current density vector of the grounding electrode feeding rods, calculating the correlation coefficient between the maximum step voltage vector and the current density vector of the grounding electrode feeding rods, and constructing a correlation coefficient matrix, and based on the correlation coefficient matrix, calculating the weight coefficient of the current density of each grounding electrode feeding rod under each arrangement scheme of the coast grounding electrode; selecting an arrangement scheme of the coast grounding electrode, and according to the weight coefficient of the current density of each grounding electrode feeding rod under all the arrangement schemes of the coast grounding electrode and the current density of each grounding electrode feeding rod under the selected arrangement scheme of the coast grounding electrode, calculating an adjustment coefficient of the selected arrangement scheme of the coast grounding electrode; if the adjustment coefficient meets the preset requirement, obtaining the arrangement scheme of the coast grounding electrode meeting the requirement, and if the adjustment coefficient does not meet the preset requirement, adjusting and optimizing the selected arrangement scheme of the coast grounding electrode until the optimized arrangement scheme of the coast grounding electrode meets the requirement; wherein the correlation coefficient between the maximum step voltage vector and the current density vector of the grounding electrode feeding rods is calculated by the following formula: ； wherein, is the correlation coefficient between the maximum step voltage vector and the current density vector of the grounding electrode rod, is the total grounding electrode arrangement, is the kth grounding electrode arrangement, is the total number of grounding electrode rods, is the kth grounding electrode rod, is the / , is the maximum step voltage on the ground surface of the kth grounding electrode arrangement, is the maximum step voltage on the ground surface of the 1st grounding electrode arrangement, / , is the current density of the kth grounding electrode rod under the kth grounding electrode arrangement, d is an adjustable coefficient. the weight coefficient of the current density of each grounding electrode feeding rod under each arrangement scheme of the coast grounding electrode is calculated by the following formula: ； In the formula, is the weight coefficient of the current density of each grounding electrode feeder rod under each coastal grounding electrode arrangement scheme.

2. A method of optimizing a coastal grounding electrode arrangement based on a multi-layer soil structure as claimed in claim 1, characterized in that, the arrangement scheme of the coast grounding electrode comprises the arrangement positions of the grounding electrode feeding rods; the arrangement positions of the grounding electrode feeding rods are different in different arrangement schemes of the coast grounding electrode.

3. A method of optimizing a coastal grounding arrangement based on a multi-layered soil structure as claimed in claim 1, characterized in that, Before simulating and calculating the maximum step voltage on the ground of the coast grounding electrode and the current density of each grounding electrode feeding rod under each arrangement scheme of the coast grounding electrode by the grounding soil simulation model, the method further comprises the following steps: simulating and calculating the grounding resistance of the coast grounding electrode under each arrangement scheme of the coast grounding electrode; if the grounding resistance is greater than a preset value, generating prompt information that the arrangement position of the grounding electrode feeding rod or the position of the grounding electrode needs to be adjusted.

4. A method of optimizing a coastal grounding arrangement based on a multi-layered soil structure as claimed in claim 1, characterized in that, the adjustment coefficient of the selected arrangement scheme of the coast grounding electrode is calculated by the following formula: ； In the formula, is the adjustment factor for the n th shore ground electrode arrangement.

5. A method of optimizing a coastal grounding arrangement based on a multi-layered soil structure as claimed in claim 4, characterized in that, whether the adjustment coefficient meets the preset requirement is determined by the following method: if the adjustment coefficient is greater than 0 and less than a preset value, it is determined that the adjustment coefficient meets the preset requirement; if the adjustment coefficient is greater than the preset value and less than 1, it is determined that the adjustment coefficient does not meet the preset requirement.

6. A device for optimizing a coastal grounding electrode arrangement based on a multi-layered soil structure, characterized by The method comprises the following steps: a data acquisition module, a simulation calculation module, a weight coefficient calculation module, an adjustment coefficient calculation module and an adjustment optimization module; the data acquisition module is used to obtain the soil resistivity of different horizontal layers of the coast, the resistivity of seawater, the slope of the coastline and initial arrangement schemes of the coast grounding electrodes; The simulation calculation module is configured to input different horizontally layered coastal soil resistivity, seawater resistivity, and coastline slope into a preset grounding electrode soil simulation model based on each coastal grounding electrode arrangement scheme, and simulate and calculate the maximum step voltage on the ground surface of the coastal grounding electrode and the current density of each grounding electrode feeder rod under each coastal grounding electrode arrangement scheme by using the grounding electrode soil simulation model. The weight coefficient calculation module is configured to construct a maximum step voltage vector based on all the maximum step voltages, construct a current density vector of the grounding electrode feeder rod based on the current density of each grounding electrode feeder rod, calculate the correlation coefficient between the maximum step voltage vector and the current density vector of the grounding electrode feeder rod, construct a correlation coefficient matrix, and calculate the weight coefficient of the current density of each grounding electrode feeder rod under each coastal grounding electrode arrangement scheme based on the correlation coefficient matrix. The adjustment coefficient calculation module is configured to select one coastal grounding electrode arrangement scheme, calculate the adjustment coefficient of the selected coastal grounding electrode arrangement scheme according to the weight coefficient of the current density of each grounding electrode feeder rod under all coastal grounding electrode arrangement schemes and the current density of each grounding electrode feeder rod under the selected coastal grounding electrode arrangement scheme. The adjustment optimization module is configured to obtain a required coastal grounding electrode arrangement scheme if the adjustment coefficient meets the preset requirement, or to perform adjustment optimization on the selected coastal grounding electrode arrangement scheme until the optimized coastal grounding electrode arrangement scheme meets the requirement if the adjustment coefficient does not meet the preset requirement. The correlation coefficient between the maximum step voltage vector and the current density vector of the grounding electrode feeder rod is calculated by the following formula: ； In the formula, This is the correlation coefficient between the maximum step voltage vector and the current density vector of the grounding electrode feed rod. For the overall grounding electrode arrangement scheme, For the first One grounding electrode arrangement scheme This represents the total number of grounding electrode feed rods. For the first A grounding electrode feed rod for / , For the first The maximum step voltage on the ground surface for each grounding electrode arrangement scheme. The maximum step voltage on the ground surface for the first grounding electrode arrangement scheme. for / , For the first The current density of the k-th grounding electrode feed rod under various grounding electrode arrangement schemes. d represents the current density of the first grounding electrode feed rod under the first grounding electrode arrangement scheme, and d is the adjustable coefficient; The weight coefficient of the current density of each grounding electrode feeder rod under each coastal grounding electrode arrangement scheme is calculated by the following formula: ； In the formula, is the weight coefficient of the current density of each grounding electrode feeder rod under each coastal grounding electrode arrangement scheme.

7. A terminal device, characterized by comprising: The storage medium includes a stored computer program, wherein the computer program controls the device where the storage medium is located to perform the coastal grounding electrode arrangement optimization method based on the multi-layer soil structure when the computer program is running.

8. A storage medium, characterized by The storage medium includes a stored computer program, wherein the computer program controls the device where the storage medium is located to perform the coastal grounding electrode arrangement optimization method based on the multi-layer soil structure when the computer program is running.

Images