Electric field homogenization device, method and medium for environmentally friendly gas insulated ring main unit

Abstract

The present application provides an electric field homogenization device, method, and medium for environmentally friendly gas insulated ring network cabinets, and relates to the technical field of ring network cabinets. The method includes: a simulation model construction module, which is used to construct a simulation model; a distribution feature fitting module, which is used to fit the electric field strength distribution feature into the simulation model; an equipment parameter acquisition module, which is used to obtain the structural parameters and insulation parameters of the electric field uniformity equipment; a homogenization processing module, which is used to homogenize the strong electric field distribution of the environmentally friendly gas insulated ring network cabinet. Through this application, the technical problem that the local electric field strength is too high due to the uneven electric field distribution in the environmentally friendly gas insulated ring network cabinet, which affects the insulation performance and equipment reliability, can be solved, and the technical effect of reducing the local electric field strength by optimizing the electric field uniformity equipment and performing simulation model analysis and strategy optimization, thereby improving the insulation performance and overall stability of the equipment can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of ring main unit, and in particular to an electric field homogenization device, method and medium for environmentally friendly gas insulated ring main unit. Background Art

[0002] In the current power system, environmentally friendly gas insulated ring main unit has gradually become an important part of power equipment due to its excellent environmental performance and high insulation characteristics. SF6 gas is often used as an insulating medium in traditional ring main units, but due to its high greenhouse effect potential, more and more research and technological development have gradually turned to the use of low greenhouse effect, replaceable environmentally friendly insulating gases. Although environmentally friendly gas insulated ring main units have significant advantages in environmental protection and safety performance, they still face some technical difficulties in electric field distribution. Due to the complexity of the main switch structure, the electric field distribution is uneven, and the phenomenon of excessive local electric field strength is prone to occur. This concentration of local electric field strength will not only lead to a decrease in insulation performance, but may also cause local discharge, thereby affecting the overall operation stability and safety of the ring main unit. In the prior art, common methods include reducing the electric field strength by optimizing the geometric structure of the equipment and adjusting the insulating material, but these methods have limited effects in practical applications, especially when faced with complex and diverse electric field distribution characteristics. Therefore, how to effectively perform electric field homogenization, reduce local electric field strength, and improve the insulation performance and overall stability of the ring main unit has become an important topic in the technical field. Summary of the invention

[0003] The purpose of this application is to provide an electric field homogenization device, method and medium for an environmentally friendly gas insulated ring main unit, so as to solve the technical problem that the local electric field strength is too high due to the uneven electric field distribution in the environmentally friendly gas insulated ring main unit, affecting the insulation performance and equipment reliability.

[0004] In view of the above problems, the present application provides an electric field homogenization device, method and medium for an environmentally friendly gas insulated ring main unit.

[0005] In the first aspect, the present application also provides an electric field homogenization device for an environmentally friendly gas insulated ring network cabinet, the device comprising: a simulation model construction module, used to collect the structural characteristics of the environmentally friendly gas insulated ring network cabinet and construct a simulation model; a distribution feature fitting module, used to perform electric field strength analysis on the main switch of the environmentally friendly gas insulated ring network cabinet, obtain the electric field strength distribution characteristics, and fit the electric field strength distribution characteristics to the simulation model; an equipment parameter acquisition module, used to obtain the structural parameters and insulation parameters of the electric field uniform installation equipment, the electric field uniform installation equipment includes a voltage equalizing cover, an insulating sleeve, and an insulating cover; a homogenization processing module, used to take the electric field homogenization of the main switch as the optimization target, take the structural parameters and insulation parameters as constraints, optimize the installation strategy based on the simulation model, and obtain the target installation strategy with the highest degree of electric field homogenization, the target installation strategy is used to homogenize the strong electric field distribution of the environmentally friendly gas insulated ring network cabinet.

[0006] In the second aspect, the present application provides an electric field homogenization method for an environmentally friendly gas insulated ring network cabinet, which is implemented by the electric field homogenization device for the environmentally friendly gas insulated ring network cabinet, wherein the method includes: collecting the structural characteristics of the environmentally friendly gas insulated ring network cabinet and constructing a simulation model; performing electric field strength analysis on the main switch of the environmentally friendly gas insulated ring network cabinet, obtaining the electric field strength distribution characteristics, and fitting the electric field strength distribution characteristics to the simulation model; obtaining the structural parameters and insulation parameters of the electric field uniform installation equipment, and the electric field uniform installation equipment includes a voltage equalizing cover, an insulating sleeve, and an insulating cover; taking the electric field homogenization of the main switch as the optimization target, taking the structural parameters and insulation parameters as constraints, optimizing the installation strategy based on the simulation model, and obtaining the target installation strategy with the highest degree of electric field homogenization, and the target installation strategy is used to homogenize the strong electric field distribution of the environmentally friendly gas insulated ring network cabinet.

[0007] According to a third aspect of the present application, a medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following modules are implemented:

[0008] A simulation model construction module is used to collect the structural characteristics of the environmentally friendly gas insulated ring network cabinet and construct a simulation model; a distribution characteristic fitting module is used to analyze the electric field strength of the main switch of the environmentally friendly gas insulated ring network cabinet, obtain the electric field strength distribution characteristics, and fit the electric field strength distribution characteristics to the simulation model; an equipment parameter acquisition module is used to obtain the structural parameters and insulation parameters of the electric field uniform installation equipment, and the electric field uniform installation equipment includes a voltage equalizing cover, an insulating sleeve, and an insulating cover; a homogenization processing module is used to take the electric field homogenization of the main switch as the optimization target, take the structural parameters and insulation parameters as constraints, optimize the installation strategy based on the simulation model, and obtain the target installation strategy with the maximum degree of electric field homogenization. The target installation strategy is used to homogenize the strong electric field distribution of the environmentally friendly gas insulated ring network cabinet.

[0009] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0010] The device provided in the embodiment of the present application collects the structural characteristics of the environmentally friendly gas insulated ring network cabinet through a simulation model construction module to construct a simulation model; through a distribution feature fitting module, the electric field strength of the main switch of the environmentally friendly gas insulated ring network cabinet is analyzed to obtain the electric field strength distribution characteristics, and the electric field strength distribution characteristics are fitted to the simulation model; through an equipment parameter acquisition module, the structural parameters and insulation parameters of the electric field uniform installation equipment are obtained, and the electric field uniform installation equipment includes a voltage equalizing cover, an insulating sleeve, and an insulating cover; through a homogenization processing module, the electric field uniformity of the main switch is taken as the optimization target, and ... The structural parameters and insulation parameters are used as constraints, and the installation strategy is optimized based on the simulation model to obtain a target installation strategy with the greatest degree of electric field uniformity. The target installation strategy is used to uniformize the strong electric field distribution of the environmentally friendly gas insulated ring network cabinet, which effectively solves the technical problem of excessive local electric field strength caused by uneven electric field distribution in the environmentally friendly gas insulated ring network cabinet, affecting insulation performance and equipment reliability, and achieves the technical effect of reducing local electric field strength by optimizing the electric field uniformity and performing simulation model analysis and strategy optimization, thereby improving equipment insulation performance and overall stability.

[0011] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented according to the contents of the specification, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are specifically cited below. It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the present application or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0013] Figure 1 This is a schematic diagram of the structure of the electric field homogenization device used in the environmentally friendly gas insulated ring main unit of the present application;

[0014] Figure 2 This is a flow chart of the electric field homogenization method for environmentally friendly gas insulated ring main unit used in this application.

[0015] Explanation of the accompanying drawings: simulation model building module 1, distribution feature fitting module 2, equipment parameter acquisition module 3, homogenization processing module 4. DETAILED DESCRIPTION

[0016] The present application provides an electric field uniformization device, method and medium for an environmentally friendly gas insulated ring main unit to solve the technical problem that the local electric field strength is too high due to the uneven electric field distribution in the environmentally friendly gas insulated ring main unit, which affects the insulation performance and equipment reliability. The application achieves the technical effect of reducing the local electric field strength by optimizing the electric field uniformity, installing equipment, performing simulation model analysis and strategy optimization, and thus improving the insulation performance and overall stability of the equipment.

[0017] Below, the technical solutions in the present application will be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments of the present application. It should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application. It should also be noted that, for the convenience of description, only the parts related to the present application are shown in the accompanying drawings, rather than all of them.

[0018] For example, please refer to the attached Figure 1 The present application provides an electric field homogenization device for an environmentally friendly gas insulated ring main unit, and the device specifically comprises the following steps:

[0019] The simulation model building module 1 is used to collect the structural characteristics of the environmentally friendly gas insulated ring main unit and build a simulation model.

[0020] Specifically, in the simulation model construction module 1, the structural characteristics of the environmentally friendly gas insulated ring main unit are first collected. This process includes collecting and recording the shape, size and material properties of each core structural component in the ring main unit, with special attention paid to areas where electric field strength is easily concentrated during high-voltage power operation, such as main switches and busbar connections. Subsequently, the basic structure and electric field synergy structure are analyzed based on these, and then the basic structure and electric field synergy structure obtained from the analysis are combined with the core structural components. The simulation space of these structures is constructed through electric field simulation software to construct a simulation model to help identify areas with high electric field strength and provide a basis for the subsequent formulation of homogenization strategies.

[0021] Furthermore, the collecting of structural characteristics of the environmentally friendly gas insulated ring main unit and building of a simulation model include:

[0022] According to the structural characteristics of the environmentally friendly gas insulated ring network cabinet, an electric field distribution influence analysis is performed to obtain a core structural component, and the core structural component is a structure where an electric field strength exceeds a threshold value; with the core structural component as the center, the relationship between component support and electric field influence is analyzed according to the structural characteristics to obtain a basic structure and an electric field coordination structure; a geometric connection structure between the core structural component and the basic structure and the electric field coordination structure is established to construct the simulation model.

[0023] In a preferred embodiment, when constructing the simulation model, the overall structural feature data of the ring main unit is first collected, including the shape, size and material properties of each key component. Special attention is paid to areas where electric field strength concentration is prone to occur, such as the main switch of the circuit breaker module (including the vacuum interrupter and the isolating / earthing switch), the bolt fixing place (such as the shape of the bolt head and the nut will cause electric field concentration), the branch bus installation place (especially the contact area between the branch bus end face and the gas box bottom plate), and the area between the isolating / earthing knife switch and the gas box wall. Based on the collected structural features, a three-dimensional model is established for each component of the environmentally friendly gas insulated ring main unit using electric field simulation software, and all key components, such as the main switch of the circuit breaker module, the bolt fixing place, the branch bus end face and the area between the isolating / earthing knife switch and the gas box wall, are accurately modeled in the simulation environment. In the electric field simulation software, boundary conditions and applied voltages are set according to the actual working conditions of the environmentally friendly gas insulated ring main unit. For example, the voltage level and corresponding electric field boundary of the main switch in the closed state are set in the three-dimensional model to ensure that the simulation scenario is consistent with the actual application conditions. Subsequently, the electric field simulation software is started to calculate the electric field and analyze the distribution of the electric field on the surfaces of different components. The software automatically calculates the electric field strength according to the preset conditions and generates an electric field distribution map, providing the electric field distribution of each component to find the location where the electric field is concentrated and the intensity is high. After that, the electric field strength distribution map is compared with the preset electric field strength threshold to identify which components have an electric field strength exceeding the safety threshold. For example, areas such as the bolt head and nut shape, the branch bus end face, the isolation / grounding knife switch and the gas box wall, if the electric field strength exceeds the threshold, these areas are defined as core structural components. After determining the core structural components, these core structural components are used as the center of analysis, and other components around the core structural components are analyzed to clarify which structures are physically connected to the core components or play a supporting role, thereby determining the physical support structures directly connected to the core structural components, such as fixed brackets and supports, and defining these structures as basic structures. In addition, the electric field simulation software is used to analyze the electric field coupling between the core structure components and the surrounding components to determine whether there are components that will enhance or weaken the electric field strength of the core structure components, such as the electric field coupling between the branch busbar and the gas box bottom plate, and then define these components with electric field coupling as electric field synergy structures. Then, the three-dimensional data of the core structure components, the basic structure and the electric field synergy structure are imported into the electric field simulation software. In the electric field simulation software, according to the actual structure of the ring network cabinet, the core structure components are accurately positioned and aligned with its basic structure and the electric field synergy structure to ensure that each component is consistent with the real physical structure in the simulation model. After the components are positioned, the geometric connection relationship between the core structure components and the basic structure and the electric field synergy structure is defined. This includes determining the contact points or electric field coupling points between the components, and setting geometric constraints (such as fixed connections and contact relationships) to ensure that the components maintain relatively stable and accurate physical connections in the simulation.This step helps to achieve the transmission and coupling of electric fields between components. Finally, the core structural components, basic structures, and electric field coordination structures with geometric connection relationships are combined with the corresponding grid division granularity, and the simulation space is constructed through electric field simulation software to obtain a simulation model, which provides a basis for subsequent electric field optimization.

[0024] Furthermore, a geometric connection structure between the core structural component and the basic structure and the electric field synergistic structure is established to construct the simulation model, including:

[0025] The grid division granularities of the core structure components, the basic structure and the electric field synergistic structure are configured respectively, wherein the grid division granularity of the core structure components is larger than the grid division granularity of the basic structure and the electric field synergistic structure; according to the grid division granularity, the simulation space is constructed by electric field simulation software to obtain the simulation model.

[0026] In an optional embodiment, the entire environmentally friendly gas insulated ring network cabinet model is preliminarily meshed globally, and a basic global mesh size is set to ensure that each component has a basic resolution in the simulation environment. This environmentally friendly gas insulated ring network cabinet model is a core structure component, a basic structure, and an electric field synergistic structure that completes the configuration of the geometric connection relationship. Subsequently, the electric field influence relationship between the core structure component and the basic structure and the electric field synergistic structure is analyzed to determine the changes and distribution of the electric field in these areas. Based on the analysis results, areas that require higher resolution, such as core structure components, are identified because these areas are crucial for the accurate analysis of the electric field distribution. The meshing granularity of the core structure component is configured to be fine-grained to improve the accuracy of the electric field strength calculation. For example, smaller grid units are set around the electric field concentration area such as the main switch of the circuit breaker module and the bolt fixing point. The meshing granularity of the basic structure and the electric field synergistic structure is set to a relatively coarse granularity to reduce the use of computing resources. This not only ensures the computational efficiency of the overall model, but also maintains a reasonable analysis of the electric field coupling effect. After that, the three-dimensional models of the core structure components, the basic structure, and the electric field synergy structure with meshing configured are imported into the electric field simulation software. Ensure that the geometry and relative positions of all components are consistent with the actual equipment. Then mesh the imported model according to the configured meshing granularity. In the electric field simulation software, set the mesh density of different areas to ensure that the core structure components use a finer mesh granularity to improve the accuracy of the electric field strength calculation, while the basic structure and the electric field synergy structure use a coarser mesh to balance the computing resources. Then, define the boundary conditions in the simulation model, for example, set parameters such as voltage and grounding position to simulate the electric field distribution under real operating conditions and ensure that the simulation environment is consistent with the actual use conditions. In addition, before the voltage and grounding position are set, the simulation model will be copied, and the boundary conditions of the temperature field and force field will be configured in the copy results respectively. Finally, in the electric field simulation software, based on the set meshing and boundary conditions, start the construction of the simulation space. This step couples the three simulation models to generate a simulation model for electric field distribution analysis, in which the physical and electric field characteristics of each component are taken into account. This simulation model can reflect the electric field characteristics and interactions of the core structural components and their basic structures and electric field synergistic structures, laying a solid foundation for subsequent electric field distribution analysis and optimization.

[0027] Furthermore, the grid division granularity of the core structure component, the basic structure and the electric field cooperative structure is configured respectively, including:

[0028] Perform preliminary grid division on the entire environmentally friendly gas insulated ring main unit model and set the global grid size; obtain the electric field influence relationship among the core structure components, the basic structure and the electric field synergistic structure, and obtain the grid configuration ratio according to the electric field influence relationship, wherein the grid configuration ratio is the minimum grid granularity ratio between the basic structure and the electric field synergistic structure that meets the electric field monitoring accuracy of the core structure components; use the global grid size as the basic value, calculate the grid size according to the grid configuration ratio, and obtain the grid division granularity of the core structure components, the basic structure and the electric field synergistic structure.

[0029] In an optional embodiment, a complete three-dimensional model of an environmentally friendly gas-insulated ring main unit is loaded in an electric field simulation software, the geometric size and range of the entire model are obtained, and then the overall requirements for grid division are determined according to the complexity of the model and the requirements for calculation accuracy. Subsequently, the initial global grid size is set in the simulation software according to the overall requirements for grid division, for example, half of the minimum component size, to ensure that the global grid can effectively cover the entire model without missing details. After setting the global grid size, a preliminary simulation is performed using the electric field simulation software to obtain electric field distribution data, form an electric field strength distribution diagram, and record the electric field strength of the core structure components and the basic structure and the electric field synergistic structure. Afterwards, an integral region is determined for each component, and this region is used to calculate the electric field interaction between the component and other components. The selection of the integral region is determined based on the physical position and electric field distribution characteristics of each component, that is, based on the significant changes in the electric field around the corresponding component in the electric field strength distribution diagram, the boundaries of the integral region are determined so that it can cover the component and its electric field influence range. For example, for the main switch of the circuit breaker module, the integral area can cover the space with large electric field intensity changes around it, while the integral area at the bolt fixing point may be smaller and concentrated in the range close to the bolt head and nut. Then calculate the integral of the electric field strength of the core structure component and other components in this area. This result reflects the degree of electric field coupling between the two. Then, calculate the integral of the square of the electric field strength of the core structure component itself in this area. This step is used for normalization to ensure that the result can reflect the relative degree of coupling between the components. Then divide the two integral results, and the value obtained is the electric field coupling degree of the component. This coupling value is used to compare the electric field interaction strength between different components. The higher the coupling degree, the closer the electric field relationship between the two components, which requires higher mesh division accuracy for detailed analysis and monitoring. This calculation process helps determine which components require a finer mesh configuration to meet the accuracy requirements of electric field distribution analysis. After determining the electric field coupling degree of each component, the grid granularity is configured inversely proportional to the coupling degree to obtain the grid configuration ratio, so that the fine granularity of the core structure components and the grid granularity of the basic structure and electric field synergistic structure maintain a reasonable ratio to take into account both calculation accuracy and resource usage. Finally, the determined grid configuration ratio is multiplied by the global grid size to obtain the grid division granularity of the core structure components, basic structure and electric field synergistic structure, laying the foundation for the subsequent construction of the simulation space and analysis of the electric field distribution.

[0030] The distribution characteristic fitting module 2 is used to perform electric field strength analysis on the main switch of the environmentally friendly gas insulated ring network cabinet, obtain the electric field strength distribution characteristics, and fit the electric field strength distribution characteristics into the simulation model.

[0031] Specifically, in the distribution feature fitting module 2, when the electric field strength analysis is performed on the main switch of the environmentally friendly gas insulated ring network cabinet, the electric field simulation software is used to simulate the electric field distribution of the main switch under the high-voltage working state, and the electric field distribution data is obtained to form an electric field strength distribution map around the main switch. This electric field strength distribution map shows the high and low changes in the electric field strength and the concentrated area. Subsequently, according to the electric field strength distribution map around the main switch, the mechanical energy electric field strength distribution characteristics are extracted, including the value of the electric field strength, the gradient of change, and the distribution on the surface or around the main switch, and these characteristic data are fitted with the simulation model, that is, the electric field strength distribution characteristics are mapped to the geometric structure of the simulation model, so that the model can accurately reflect the electric field distribution characteristics of the main switch in actual work. The key to this process is to combine the electric field analysis results with the simulation model, so that the model has a real data basis for the electric field distribution, and provide an effective basis for subsequent analysis and optimization. In this way, the simulation model not only includes the physical structure, but also reflects the distribution of the electric field strength, thereby more realistically simulating the electric field behavior of the ring network cabinet under high voltage conditions.

[0032] The equipment parameter acquisition module 3 is used to obtain the structural parameters and insulation parameters of the electric field uniform installation equipment, and the electric field uniform installation equipment includes a voltage grading cover, an insulation sleeve, and an insulation cover.

[0033] Specifically, in the equipment parameter acquisition module 3, the structural parameters and insulation parameters of the electric field uniform installation equipment will be obtained. The electric field uniform installation equipment mainly includes a voltage equalizing cover, an insulating sleeve and an insulating cover. Each component plays a role in balancing the electric field distribution and improving the insulation performance in the ring network cabinet. The methods for obtaining these parameters include but are not limited to retrieval of design drawings, reference to manufacturing specifications, actual equipment measurements, etc. By combining these structural and insulation parameters, detailed data can be provided for the simulation model and subsequent electric field optimization to ensure that the electric field uniformization effect of these devices is accurately simulated in the analysis.

[0034] Furthermore, the structural parameters of the electric field uniform installation equipment include size, shape, material, and surface treatment, and the insulation parameters include electric field isolation parameters and insulation performance parameters.

[0035] In a preferred embodiment, the structural parameters of the electric field uniform installation equipment refer to a series of detailed data used to describe the physical characteristics of these devices, including size, shape, material, and surface treatment. Insulation parameters refer to indicators that describe the electrical performance of the equipment, including electric field isolation parameters and insulation performance parameters. Among them, size refers to the specific size and space occupancy of the equipment, including length, width, thickness or diameter, etc. For example, the bolt uses a hexagon socket head screw M8 specification, the pressure equalizing cover used by the bolt head has an outer diameter of Φ32mm, an inner diameter of Φ15mm, and a thickness of 15.3mm. The outer diameter of the pressure equalizing cover used by the nut is Φ38mm, and the inner diameter is Φ20mm, which meets the hexagonal sleeve. The thickness is 15.6mm, and the outside is close to full chamfer R8. These dimensions affect the coverage and homogenization effect of the equipment in the electric field. Shape refers to the geometric shape of the equipment, including whether it is circular, rectangular, elliptical, etc. For example, the outer side of the pressure equalizing cover used by the bolt head is close to full chamfer R8, and the outer side of the pressure equalizing cover used by the nut is close to full chamfer R8, and the insulating sleeve is designed L-shaped. Different shapes have different effects on the distribution and uniformity of the electric field. Material refers to the material used for the equipment, for example, the insulating sleeve is made of silicone rubber. The choice of material directly affects the conductivity, insulation and durability of the equipment. Surface treatment refers to the special treatment process on the surface of the equipment, such as polishing, electroplating, spraying or coating. These treatments can reduce electric field concentration, improve arc resistance, and enhance the stability of the equipment in high voltage environments. The electric field isolation parameter is used to describe the isolation effect of the equipment under high electric field strength, that is, how the equipment prevents the electric field from penetrating or leaking. This parameter can ensure that the equipment effectively isolates the electric field during operation. The insulation performance parameters cover the dielectric strength, withstand voltage level and electric shock resistance of the equipment, ensuring good insulation effect under high voltage conditions to prevent breakdown and discharge. These parameters work together to enable the electric field uniformity equipment to balance the electric field distribution in actual applications and improve the stability and insulation performance of the overall equipment. By accurately defining and measuring these parameters, the role of the equipment can be more realistically simulated in the simulation model, helping to optimize the design and improve the performance of the equipment.

[0036] The homogenization processing module 4 is used to optimize the installation strategy based on the simulation model with the electric field homogenization of the main switch as the optimization target, the structural parameters and the insulation parameters as constraints, and obtain the target installation strategy with the highest degree of electric field homogenization. The target installation strategy is used to homogenize the strong electric field distribution of the environmentally friendly gas insulated ring network cabinet.

[0037] Specifically, in the homogenization processing module 4, in the process of taking the electric field homogenization of the main switch as the optimization target, the core is to analyze and adjust the electric field distribution through the simulation model to achieve the homogenization of the electric field. Specifically, the optimization goal of the electric field homogenization is to adjust the electric field distribution of the main switch and its surroundings to the most balanced state, avoid excessive concentration of the local electric field, and thus improve the overall insulation performance and stability of the equipment. In order to achieve this goal, some constraints are set, which include the structural parameters and insulation parameters of the electric field uniform installation equipment. These parameters ensure that the physical and design limitations are not exceeded during the optimization process. When optimizing based on the simulation model, the search space in the simulation model is used to adjust the installation strategy, and then the simulation model is used to evaluate the electric field distribution after each adjustment, calculate the degree of homogenization of the electric field, and iterate multiple times to gradually approach the optimal solution for electric field homogenization. Finally, the target installation strategy obtained is the configuration that achieves the highest degree of electric field homogenization. This strategy can be used to install or adjust electric field uniformity equipment in actual equipment to make the strong electric field in the environmentally friendly gas insulated ring main unit more evenly distributed, thereby reducing the problem of excessive local electric field strength and improving insulation performance and long-term reliability of equipment.

[0038] Furthermore, the electric field homogenization of the main switch is taken as the optimization target, the structural parameters and the insulation parameters are taken as the constraints, and the installation strategy is optimized based on the simulation model to obtain the target installation strategy with the maximum degree of electric field homogenization, including:

[0039] According to the electric field intensity distribution characteristics, the electric field variation gradient is obtained; according to the electric field variation gradient, the homogenization target is identified to obtain a multi-level electric field homogenization target, and the multi-level electric field homogenization target is a multi-gradient level obtained by clustering the electric field variation gradient; according to the multi-level electric field homogenization target, the homogenization structural characteristics are located; according to the structural parameters and insulation parameters, and in combination with the homogenization structural characteristics, an electric field compensation relationship and a structural wrapping relationship are established; with the goal of minimizing the electric field variation gradient, the physical limitations of the structural parameters and insulation parameters are used as constraints, and a search space is constructed according to the electric field compensation relationship and the structural wrapping relationship; the search space is fitted to the simulation model, the search space is used to adjust the installation strategy, the simulation model is used to perform a homogenization simulation evaluation of the installation strategy, and the target installation strategy is obtained through iterative optimization of the search space and the simulation model.

[0040] In an optional embodiment, according to the extracted electric field intensity distribution characteristics, the rate of change of the electric field intensity at different positions around the main switch is calculated to obtain the change gradient of the electric field. Subsequently, the calculated electric field change gradient is used for analysis to identify areas where the electric field changes more violently and more smoothly. By inputting the electric field change gradient data into the K-means clustering algorithm for cluster analysis, these change gradients are divided into multiple gradient levels. In the cluster analysis process, a suitable number of clusters K is selected to ensure that different electric field gradient areas are effectively classified. This step can be determined using the elbow method to achieve the best clustering effect. K cluster centers are then randomly initialized to represent the initial electric field gradient level. Each data point is assigned to the corresponding cluster according to the Euclidean distance from the cluster center to ensure that data points with the same gradient level are clustered together. Afterwards, the average value of the data points in each cluster is calculated, and the cluster center is updated to the new position. Repeat the allocation and center update steps until the cluster center is stable and no longer changes, or the preset number of iterations is reached. After clustering is completed, the electric field change gradient is divided into multiple levels from violent to stable, forming a multi-level electric field homogenization target. This process identifies areas with high electric field concentration and marks them as areas that need to be optimized and homogenized, providing basic data for further optimization of installed equipment and electric field homogenization strategies. After determining the multi-level electric field homogenization target, the structural features suitable for electric field homogenization are determined based on the obtained multi-level electric field homogenization target. These structural features include the key feature positions and shapes of installed equipment such as voltage equalizing covers, insulating sleeves and insulating covers, and clearly define where to install or adjust these devices to best achieve electric field homogenization. Combined with the structural parameters and insulation parameters of the equipment, the electric field uniformity compensation characteristics and wrapping tight relationship analysis are performed, that is, how to affect the electric field distribution by adjusting the installed equipment, so as to establish the electric field compensation relationship and structural wrapping relationship. The electric field compensation relationship refers to the introduction of compensation equipment in areas where the electric field changes more drastically to balance the electric field strength. The structural wrapping relationship refers to the combination of the installed equipment with the main switch and the surrounding structure, and the uniform electric field does not affect the overall structural stability. Then, the search space is set with the goal of minimizing the gradient of the electric field change. This search space defines the range of configurations of the installed equipment that are allowed to be adjusted, and includes physical limitations on structural parameters and insulation parameters to ensure that the equipment is adjusted within a reasonable range. Combined with the electric field compensation relationship and the structural wrapping relationship, these factors are incorporated into the construction of the search space for strategy optimization. Finally, the constructed search space is fitted into the electric field simulation model to start the adjustment process of the installation strategy. The simulation model is used to perform a homogenization simulation evaluation for each adjustment, and the electric field distribution effect of each strategy is calculated. Multiple iterations are performed within the simulation model and search space, and the goal of minimizing the gradient of the electric field change is gradually approached by continuously optimizing the strategy. Each iteration adjusts the strategy according to the simulation results until the installation strategy with the highest degree of electric field homogenization is found.Through the final optimization iteration, the optimal installation strategy is obtained and used in actual equipment to achieve electric field homogenization. This process ensures that the optimization of electric field distribution homogenization achieves the best effect and improves the insulation performance and stability of the main switch and the entire ring network cabinet.

[0041] Furthermore, the electric field homogenization of the main switch is taken as the optimization target, the structural parameters and the insulation parameters are taken as the constraints, and the installation strategy is optimized based on the simulation model to obtain the target installation strategy with the maximum degree of electric field homogenization, including:

[0042] According to the structural parameters and insulation parameters, the electric field uniformity compensation characteristics are analyzed to obtain the electric field compensation relationship; according to the uniformization structural characteristics, the installation space and shape structural characteristics are analyzed, and the installation space and shape structural characteristics are used with the structural parameters and insulation parameters to perform a wrapping tight relationship analysis to obtain the structural wrapping relationship.

[0043] In an optional embodiment, in the electric field simulation software, without adding equipment, the main switch and its surrounding area are simulated for electric field simulation, the initial electric field strength distribution is recorded, and the reference electric field strength is determined. The reference value includes the peak value of the electric field strength at each position and the overall electric field distribution range. Then import a three-dimensional model containing electric field uniformly installed equipment (such as a voltage-equalizing cover, an insulating sleeve, and an insulating cover), and set its structural parameters and insulation parameters. By running the electric field simulation, the electric field distribution data is recorded. Pay attention to the impact of the installed equipment on the electric field concentration area, especially whether the electric field strength is reduced. By comparing the changes in the electric field strength with and without the installed equipment, that is, using the reference electric field strength minus the electric field strength after installation, and then calculating the ratio with the reference electric field strength, the reduction ratio of the electric field strength at each position is obtained. Subsequently, through multiple calculations, the position where the electric field strength reduction ratio is less than the electric field strength reduction threshold is determined, and the coverage range is determined based on the position. The electric field strength reduction ratio and coverage range under different installed equipment configurations are integrated to form an electric field compensation relationship. This relationship reflects how to achieve the effect of electric field homogenization by adjusting the structural parameters and insulation parameters. In addition, based on the identified electric field homogenization structural features, the space where the additional equipment can be placed is identified, and the area available for installing the equipment, including its size and shape characteristics, is determined to ensure that the equipment can be physically placed in the ring network cabinet. Then analyze the shape characteristics of the additional equipment, such as curved surfaces, corners or arc areas, which have a great influence on the electric field distribution. Consider how to configure the equipment in different positions in the ring network cabinet according to these shapes to optimize the electric field distribution. After that, combine the obtained additional space, shape and structural characteristics, and compare them with the structural parameters and insulation parameters of the equipment. Check whether the shape and size of the equipment at the target position match the geometric characteristics of the additional space. Analyze the fit and coverage of the additional equipment at the intended installation position. Verify through simulation whether the equipment can be closely contacted or wrapped with the electric field concentration area to achieve the effect of electric field compensation and homogenization. Then, record the degree of wrapping tightness of the additional equipment in different installation positions and directions to generate a structural wrapping relationship. This relationship is used to guide how to adjust the position and angle of the device to maximize the electric field compensation effect and ensure its stability.

[0044] Furthermore, with the goal of minimizing the electric field change gradient, the physical limitations of the structural parameters and insulation parameters are used as constraints, and a search space is constructed according to the electric field compensation relationship and the structural wrapping relationship, including:

[0045] Establish the influence relationship among the electric field compensation relationship, the structural wrapping relationship and the electric field change gradient; with the goal of minimizing the electric field change gradient, construct an objective function according to the influence relationship, and determine the electric field compensation difference based on the electric field change gradient, and obtain the search step according to the electric field compensation difference; according to the influence relationship, obtain the search direction of the structural parameters and insulation parameters; determine the search strategy according to the search step and the search direction, take the physical limit range of the structural parameters and insulation parameters as constraints, and construct the search space based on the objective function.

[0046] In an optional embodiment, the parameters of the electric field compensation relationship and the structural wrapping relationship are associated with the data of the electric field change gradient. Analyze how each variable in these relationships (such as structural parameters, insulation parameters, fit, etc.) affects the change of the electric field gradient, understand whether the change of structural parameters (such as size and shape) will lead to a significant reduction in the electric field gradient, and find the qualitative or quantitative relationship between the electric field compensation relationship, the structural wrapping relationship and the electric field gradient change, that is, the influence relationship. For example, through data analysis tools (such as scatter plots, regression analysis, etc.), understand how certain structural parameters significantly affect the change of the electric field gradient. The purpose of this step is to clarify which parameters play a major role in the homogenization of the electric field gradient. Subsequently, based on the determined influence relationship, a formula is used to construct an objective function with the aim of minimizing the change of the electric field gradient. The objective function is as follows: ; Where p is the structural parameter vector, i is the insulation parameter vector, E(p,i) is the electric field intensity, which depends on the structural parameters and insulation parameters, ∇E represents the gradient of the electric field intensity, and Ω is the integral area of ​​the electric field distribution, that is, the spatial domain of the electric field distribution. After that, the current gradient distribution is compared with the target electric field gradient distribution (homogenization target), and the electric field compensation difference is calculated, that is, the gradient difference compensated by adding equipment and adjusting parameters. The compensation difference can be expressed by the difference in the electric field change gradient at different positions. Then, according to the electric field compensation difference, the step size for optimization in the parameter space is determined. The search step size is used to control the amplitude of parameter adjustment at each iteration to ensure that the optimization process achieves a balance between accuracy and computational efficiency. The step size can be calculated by setting a factor proportional to the electric field compensation difference. A larger compensation difference means that a larger step size is required for significant adjustment, while a smaller difference requires a smaller step size to ensure fine adjustment. Then, the influence of the electric field compensation relationship and the structural wrapping relationship on the electric field change gradient is analyzed. By analyzing the influence relationship, gradient descent or other optimization algorithms are used to determine the optimal direction of how the structural parameters and insulation parameters affect the electric field gradient, that is, in which direction in the parameter space the structural parameters and insulation parameters can be adjusted to minimize the electric field gradient. The determination of the search direction can ensure that the parameters are adjusted towards the goal of electric field homogenization in each iteration. Finally, based on the calculated search step and search direction, a specific search strategy is formulated. The search strategy determines how to adjust the structural parameters and insulation parameters in the parameter space to achieve the optimization goal. The physical limit range of the structural parameters and insulation parameters is used as a constraint to ensure that the parameter adjustment in the optimization process is carried out within the achievable range and does not exceed the design or physical limitations. For example, the outer diameter range of the voltage equalizing cover should be between 30mm and 40mm to meet the different size requirements of the bolt head and nut; the inner diameter range is between 15mm and 25mm to ensure that the voltage equalizing cover can adapt to the installation of different bolt heads and nuts; the outlet diameter range of the insulation sleeve is between 40mm and 45mm to ensure the adaptation to the branch bus. On this basis, a search space is constructed, which defines all possible parameter combinations, including the adjustable range of structural parameters and insulation parameters. The search space provides iterative boundaries and directions for optimization to find the optimal solution within the space, ensuring that the optimization of the uniform distribution of the electric field achieves the best effect and improves the insulation performance and stability of the main switch and the entire ring network cabinet.

[0047] In summary, the electric field homogenization device for an environmentally friendly gas insulated ring main unit provided in the embodiment of the present application has the following technical effects:

[0048] A simulation model construction module 1 is used to collect the structural characteristics of the environmentally friendly gas insulated ring network cabinet and construct a simulation model; a distribution characteristic fitting module 2 is used to analyze the electric field strength of the main switch of the environmentally friendly gas insulated ring network cabinet, obtain the electric field strength distribution characteristics, and fit the electric field strength distribution characteristics to the simulation model; an equipment parameter acquisition module 3 is used to obtain the structural parameters and insulation parameters of the electric field uniform installation equipment, and the electric field uniform installation equipment includes a voltage equalizing cover, an insulating sleeve, and an insulating cover; a homogenization processing module 4 is used to take the electric field homogenization of the main switch as the optimization target, take the structural parameters and insulation parameters as constraints, optimize the installation strategy based on the simulation model, and obtain the target installation strategy with the highest degree of electric field homogenization. The target installation strategy is used to homogenize the strong electric field distribution of the environmentally friendly gas insulated ring network cabinet. Through the above steps, the technical problem of excessive local electric field strength caused by uneven electric field distribution in the environmentally friendly gas insulated ring main unit, which affects the insulation performance and equipment reliability, is solved. The technical effect of optimizing the electric field uniformly, installing equipment, performing simulation model analysis and strategy optimization, reducing the local electric field strength, and thus improving the insulation performance and overall stability of the equipment is achieved.

[0049] Embodiment 2, based on the same inventive concept as the electric field homogenization device for environmentally friendly gas insulated ring main unit in the previous embodiment, Figure 2 As shown, an embodiment of the present application provides an electric field homogenization method for an environmentally friendly gas insulated ring main unit, the method comprising:

[0050] A simulation model construction module 1 is used to collect the structural characteristics of the environmentally friendly gas insulated ring network cabinet and construct a simulation model; a distribution characteristic fitting module 2 is used to analyze the electric field strength of the main switch of the environmentally friendly gas insulated ring network cabinet, obtain the electric field strength distribution characteristics, and fit the electric field strength distribution characteristics to the simulation model; an equipment parameter acquisition module 3 is used to obtain the structural parameters and insulation parameters of the electric field uniform installation equipment, and the electric field uniform installation equipment includes a voltage equalizing cover, an insulating sleeve, and an insulating cover; a homogenization processing module 4 is used to take the electric field homogenization of the main switch as the optimization target, take the structural parameters and insulation parameters as constraints, optimize the installation strategy based on the simulation model, and obtain the target installation strategy with the highest degree of electric field homogenization. The target installation strategy is used to homogenize the strong electric field distribution of the environmentally friendly gas insulated ring network cabinet.

[0051] Furthermore, the simulation model construction module 1 includes:

[0052] According to the structural characteristics of the environmentally friendly gas insulated ring network cabinet, an electric field distribution influence analysis is performed to obtain a core structural component, and the core structural component is a structure where an electric field strength exceeds a threshold value; with the core structural component as the center, the relationship between component support and electric field influence is analyzed according to the structural characteristics to obtain a basic structure and an electric field coordination structure; a geometric connection structure between the core structural component and the basic structure and the electric field coordination structure is established to construct the simulation model.

[0053] Furthermore, the simulation model construction module 1 includes:

[0054] The grid division granularities of the core structure components, the basic structure and the electric field synergistic structure are configured respectively, wherein the grid division granularity of the core structure components is larger than the grid division granularity of the basic structure and the electric field synergistic structure; according to the grid division granularity, the simulation space is constructed by electric field simulation software to obtain the simulation model.

[0055] Furthermore, the simulation model construction module 1 includes:

[0056] Perform preliminary grid division on the entire environmentally friendly gas insulated ring main unit model and set the global grid size; obtain the electric field influence relationship among the core structure components, the basic structure and the electric field synergistic structure, and obtain the grid configuration ratio according to the electric field influence relationship, wherein the grid configuration ratio is the minimum grid granularity ratio between the basic structure and the electric field synergistic structure that meets the electric field monitoring accuracy of the core structure components; use the global grid size as the basic value, calculate the grid size according to the grid configuration ratio, and obtain the grid division granularity of the core structure components, the basic structure and the electric field synergistic structure.

[0057] Furthermore, the device parameter acquisition module 3 includes:

[0058] The structural parameters of the electric field uniform installation equipment include size, shape, material, and surface treatment, and the insulation parameters include electric field isolation parameters and insulation performance parameters.

[0059] Furthermore, the homogenization processing module 4 includes:

[0060] According to the electric field intensity distribution characteristics, the electric field variation gradient is obtained; according to the electric field variation gradient, the homogenization target is identified to obtain a multi-level electric field homogenization target, and the multi-level electric field homogenization target is a multi-gradient level obtained by clustering the electric field variation gradient; according to the multi-level electric field homogenization target, the homogenization structural characteristics are located; according to the structural parameters and insulation parameters, and in combination with the homogenization structural characteristics, an electric field compensation relationship and a structural wrapping relationship are established; with the goal of minimizing the electric field variation gradient, the physical limitations of the structural parameters and insulation parameters are used as constraints, and a search space is constructed according to the electric field compensation relationship and the structural wrapping relationship; the search space is fitted to the simulation model, the search space is used to adjust the installation strategy, the simulation model is used to perform a homogenization simulation evaluation of the installation strategy, and the target installation strategy is obtained through iterative optimization of the search space and the simulation model.

[0061] Furthermore, the homogenization processing module 4 includes:

[0062] According to the structural parameters and insulation parameters, the electric field uniformity compensation characteristics are analyzed to obtain the electric field compensation relationship; according to the uniformization structural characteristics, the installation space and shape structural characteristics are analyzed, and the installation space and shape structural characteristics are used with the structural parameters and insulation parameters to perform a wrapping tight relationship analysis to obtain the structural wrapping relationship.

[0063] Furthermore, the homogenization processing module 4 includes:

[0064] Establish the influence relationship among the electric field compensation relationship, the structural wrapping relationship and the electric field change gradient; with the goal of minimizing the electric field change gradient, construct an objective function according to the influence relationship, and determine the electric field compensation difference based on the electric field change gradient, and obtain the search step according to the electric field compensation difference; according to the influence relationship, obtain the search direction of the structural parameters and insulation parameters; determine the search strategy according to the search step and the search direction, take the physical limit range of the structural parameters and insulation parameters as constraints, and construct the search space based on the objective function.

[0065] Embodiment 3 provides a medium, in which a computer program is stored, and when the processor executes the computer program, the following modules are implemented:

[0066] A simulation model construction module 1 is used to collect the structural characteristics of the environmentally friendly gas insulated ring network cabinet and construct a simulation model; a distribution characteristic fitting module 2 is used to analyze the electric field strength of the main switch of the environmentally friendly gas insulated ring network cabinet, obtain the electric field strength distribution characteristics, and fit the electric field strength distribution characteristics to the simulation model; an equipment parameter acquisition module 3 is used to obtain the structural parameters and insulation parameters of the electric field uniform installation equipment, and the electric field uniform installation equipment includes a voltage equalizing cover, an insulating sleeve, and an insulating cover; a homogenization processing module 4 is used to take the electric field homogenization of the main switch as the optimization target, take the structural parameters and insulation parameters as constraints, optimize the installation strategy based on the simulation model, and obtain the target installation strategy with the highest degree of electric field homogenization. The target installation strategy is used to homogenize the strong electric field distribution of the environmentally friendly gas insulated ring network cabinet.

[0067] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, if these modifications and variations of the present application belong to the scope of the present application and its equivalent technology, the present application intends to include these modifications and variations.

Claims

1. An electric field homogenization device for an environmentally friendly gas insulated ring main unit, characterized in that: The device comprises: A simulation model building module is used to collect the structural characteristics of environmentally friendly gas-insulated ring main unit and build a simulation model; A distribution feature fitting module, used to perform electric field strength analysis on the main switch of the environmentally friendly gas insulated ring main unit, obtain electric field strength distribution characteristics, and fit the electric field strength distribution characteristics to the simulation model; The equipment parameter acquisition module is used to acquire the structural parameters and insulation parameters of the electric field uniform installation equipment, wherein the electric field uniform installation equipment includes a voltage grading cover, an insulation sleeve, and an insulation cover, wherein the structural parameters of the electric field uniform installation equipment include size, shape, material, and surface treatment, and the insulation parameters include electric field isolation parameters and insulation performance parameters; A homogenization processing module is used to optimize the installation strategy based on the simulation model with the electric field homogenization of the main switch as the optimization target, the structural parameters and the insulation parameters as the constraints, and obtain the target installation strategy with the maximum degree of electric field homogenization. The target installation strategy is used to homogenize the strong electric field distribution of the environmentally friendly gas insulated ring network cabinet; The collecting of structural characteristics of the environmentally friendly gas insulated ring main unit and building of a simulation model include: According to the structural characteristics of the environmentally friendly gas insulated ring main unit, an electric field distribution influence analysis is performed to obtain a core structural component, wherein the core structural component is a structure where an electric field strength exceeds a threshold value; Taking the core structural components as the center, the relationship between component support and electric field influence is analyzed according to the structural characteristics to obtain the basic structure and electric field coordination structure; Establishing a geometric connection structure between the core structural component and the basic structure and electric field cooperative structure, and constructing the simulation model; The method of optimizing the installation strategy based on the simulation model by taking the electric field homogenization of the main switch as the optimization target, taking the structural parameters and insulation parameters as the constraints, and obtaining the target installation strategy with the maximum electric field homogenization degree includes: According to the electric field intensity distribution characteristics, obtaining the electric field change gradient; Performing homogenization target identification according to the electric field change gradient to obtain a multi-level electric field homogenization target, wherein the multi-level electric field homogenization target is a multi-gradient level obtained by clustering the electric field change gradient; Positioning homogenization structural features according to the multi-level electric field homogenization target; According to the structural parameters, insulation parameters, and in combination with the homogenized structural characteristics, an electric field compensation relationship and a structural wrapping relationship are established; Taking minimizing the electric field change gradient as the goal, taking the physical limitations of the structural parameters and insulation parameters as constraints, and constructing a search space according to the electric field compensation relationship and the structural wrapping relationship; The search space is fitted into the simulation model, the search space is used to adjust the installation strategy, the simulation model is used to perform a homogenization simulation evaluation of the installation strategy, and the target installation strategy is obtained through iterative optimization of the search space and the simulation model.

2. The electric field homogenization device for environmentally friendly gas insulated ring main unit according to claim 1, characterized in that: Establishing a geometric connection structure between the core structural component and the basic structure and the electric field synergistic structure, and constructing the simulation model, including: respectively configuring the mesh division granularity of the core structure component, the basic structure and the electric field cooperative structure, wherein the mesh division granularity of the core structure component is greater than the mesh division granularity of the basic structure and the electric field cooperative structure; According to the grid division granularity, the simulation space is constructed by electric field simulation software to obtain the simulation model.

3. The electric field homogenization device for environmentally friendly gas insulated ring main unit according to claim 2, characterized in that: Configuring the meshing granularity of the core structure component, the basic structure and the electric field cooperative structure respectively includes: Perform preliminary meshing of the entire environmentally friendly gas-insulated ring main unit model and set the global mesh size; Obtaining an electric field influence relationship between the core structure component, the basic structure, and the electric field synergistic structure, and obtaining a grid configuration ratio according to the electric field influence relationship, wherein the grid configuration ratio is a minimum grid granularity ratio relationship between the basic structure and the electric field synergistic structure that satisfies the electric field monitoring accuracy of the core structure component; The global grid size is taken as a basic value, and the grid size is calculated according to the grid configuration ratio to obtain the grid division granularity of the core structural components, the basic structure and the electric field cooperative structure.

4. The electric field homogenization device for environmentally friendly gas insulated ring main unit according to claim 1, characterized in that: According to the structural parameters, insulation parameters, and in combination with the homogenized structural characteristics, an electric field compensation relationship and a structural wrapping relationship are established, including: According to the structural parameters and insulation parameters, an electric field uniformity compensation characteristic analysis is performed to obtain an electric field compensation relationship; The installation space and shape structure features are analyzed according to the homogenized structural features, and the tight wrapping relationship analysis is performed using the installation space and shape structure features and the structural parameters and insulation parameters to obtain the structural wrapping relationship.

5. The electric field homogenization device for environmentally friendly gas insulated ring main unit according to claim 4, characterized in that: With the goal of minimizing the electric field change gradient and the physical limitations of the structural parameters and insulation parameters as constraints, a search space is constructed according to the electric field compensation relationship and the structural wrapping relationship, including: Establishing the influence relationship between the electric field compensation relationship, the structural wrapping relationship and the electric field change gradient; Taking minimizing the electric field change gradient as the goal, constructing an objective function according to the influence relationship, determining an electric field compensation difference based on the electric field change gradient, and obtaining a search step length according to the electric field compensation difference; According to the influence relationship, obtaining the search direction of the structural parameters and insulation parameters; The search strategy is determined according to the search step length and the search direction, and the search space is constructed based on the objective function with the physical limit ranges of the structural parameters and the insulation parameters as constraints.

6. A method for homogenizing the electric field of an environmentally friendly gas-insulated ring main unit, characterized in that: The electric field homogenization method for an environmentally friendly gas-insulated ring main unit is performed by an electric field homogenization device for an environmentally friendly gas-insulated ring main unit according to any one of claims 1 to 5, comprising: Collect the structural characteristics of environmentally friendly gas-insulated ring main unit and build a simulation model; Performing electric field strength analysis on the main switch of the environmentally friendly gas insulated ring main unit to obtain electric field strength distribution characteristics, and fitting the electric field strength distribution characteristics to the simulation model; Obtaining structural parameters and insulation parameters of an electric field uniform installation device, wherein the electric field uniform installation device includes a voltage grading cover, an insulation sleeve, and an insulation cover; Taking the electric field homogenization of the main switch as the optimization goal, and taking the structural parameters and insulation parameters as constraints, the installation strategy is optimized based on the simulation model to obtain the target installation strategy with the highest degree of electric field homogenization. The target installation strategy is used to homogenize the strong electric field distribution of the environmentally friendly gas insulated ring network cabinet.

7. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, a module of the electric field homogenization device for an environmentally friendly gas insulated ring main unit as claimed in any one of claims 1 to 5 is implemented.

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