GIS conductor lightweight design method, system and equipment and storage medium

Abstract

The invention belongs to the field of GIS conductor lightweight design, and discloses a GIS conductor lightweight design method, system and device and a storage medium, and the method comprises the steps: constructing a three-dimensional simulation model of a GIS conductor, carrying out the eddy current field calculation, and recognizing a low-current density region in the conductor as a pre-lightweight position; carrying out slotting or trepanning design on the pre-lightweight position to form a lightweight conductor model, and carrying out eddy current field calculation again to evaluate the loss of the lightweight conductor; comparing the original eddy current loss value with the loss value after light weight, and combining a preset design threshold value to judge whether the light weight design scheme meets a set performance requirement or not; and if the condition is not met, the key size parameters of slotting or tapping are adjusted through iteration, and the design scheme is continuously optimized until the purposes of reducing the weight and ensuring the stability and reliability of the electrical performance are achieved. By adopting the method, the optimization and the reliability of the lightweight design of the GIS conductor are remarkably improved, and the performance reduction and the potential safety hazard risk in long-term use are reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of lightweight design of GIS conductors, and particularly relates to a method, system, device and storage medium for lightweight design of GIS conductors. Background Art

[0002] In recent years, with the continuous increase in the load of the power system, increasingly stringent requirements have been imposed on the current-carrying capacity of gas-insulated switchgear (GIS); this trend has directly led to a continuous increase in the size and weight of the conductors in GIS products, bringing many challenges to the installation, transportation and long-term operation and maintenance of the equipment. At the same time, the industry's pursuit of lightweight and low-cost GIS products has become increasingly urgent, not only to respond to the global call for energy conservation and emission reduction, but also to enhance the market competitiveness of products and meet broader market demands. Therefore, scientific and reasonable lightweight design of GIS products has become an inevitable trend in the development of the industry.

[0003] However, the complexity of the GIS conductor structure poses quite a challenge to lightweight design. Specifically, GIS conductors often contain a large number of cast structures, which not only have diverse shapes but also carry key electrical transmission functions, making it particularly difficult to conduct lightweight design while maintaining their current-carrying performance. Currently, when conducting lightweight design of GIS cast conductors, the industry mostly relies on traditional empirical rules and reduces weight by means such as grooving or punching holes; although this method achieves a certain weight reduction effect to some extent, it lacks systematic theoretical guidance and is difficult to ensure the optimization and reliability of the design scheme.

[0004] Thus, for the existing lightweight design measures for GIS conductors, due to the lack of systematic theoretical guidance, it is difficult to ensure the optimization and reliability of the design scheme. Summary of the Invention

[0005] The present invention provides a method, system, device and storage medium for lightweight design of GIS conductors to solve the technical problem that for the existing lightweight design measures for GIS conductors, due to the lack of systematic theoretical guidance, it is difficult to ensure the optimization and reliability of the design scheme.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A method for lightweight design of GIS conductors, comprising: Performing eddy current field calculation on a pre-constructed three-dimensional simulation model of a GIS conductor to obtain a current density cloud map and an original eddy current loss value; Based on the current density cloud map, obtaining the pre-lightweight positions of the three-dimensional simulation model of the GIS conductor, and at the same time, grooving or punching holes at the pre-lightweight positions of the three-dimensional simulation model of the GIS conductor to obtain a lightweight design scheme and a lightweight conductor model; Lightweight loss calculation process: Perform eddy current field calculation on the lightweight conductor model to obtain the lightweight conductor loss value; Design requirement judgment process: Obtain the design absolute value based on the original eddy current loss value and the lightweight conductor loss value, and judge whether the current lightweight design scheme meets the design requirements based on the comparison result between the design absolute value and the preset design threshold; if it meets, output the current lightweight design scheme; otherwise, readjust the key dimension parameters of the slotting or hole opening and repeat the lightweight loss calculation process and the design requirement judgment process until the lightweight design scheme meets the design requirements.

[0007] Furthermore, establish a 3D simulation model of the GIS conductor using 3D software; and equivalent the contact resistance between the moving contact and the conductor of the GIS conductor to a solid ring to obtain an equivalent ring for simplifying the 3D simulation model of the GIS conductor.

[0008] Furthermore, the specific steps of the eddy current field calculation include: Import the simplified 3D simulation model of the GIS conductor into the eddy current field calculation software, define the conductor units and material properties of each part of the GIS conductor respectively, and set the solution domain, excitation conditions and boundary conditions respectively; Calculate the eddy current field and extract the current density nephogram and the original eddy current loss value; among them, the material properties of the equivalent ring are defined based on the resistivity of the equivalent ring.

[0009] Furthermore, the resistivity of the equivalent ring is obtained based on the measured resistance value, and the specific formula is as follows: ρ = R·S / L In the formula, ρ is the resistivity of the equivalent ring; S is the cross-sectional area of the equivalent ring; L is the length of the equivalent ring.

[0010] Furthermore, the specific steps of obtaining the pre-lightweight position of the 3D simulation model of the GIS conductor based on the current density nephogram are as follows: Analyze the parts of the 3D simulation model of the GIS conductor corresponding to the lower current density in the current density nephogram; Output the parts of the 3D simulation model of the GIS conductor corresponding to the lower current density as the pre-lightweight position; among them, the parts with lower current density mean that the current density of this part is lower than the preset current density reference value.

[0011] Furthermore, perform slotting or hole opening at the pre-lightweight position of the 3D simulation model of the GIS conductor in combination with the external electric field of the GIS conductor and the processability.

[0012] Furthermore, the specific steps of the design requirement judgment process are as follows: The absolute value of the increase in loss is calculated based on the original eddy current loss value and the loss value of the lightweight conductor; The absolute value of the mass reduction is calculated based on the mass of the GIS conductor three-dimensional simulation model and the mass of the lightweight conductor model; The design absolute value is calculated based on the absolute value of the increase in loss and the absolute value of the mass reduction; The design absolute value is compared with a preset design threshold. If the design absolute value is less than or equal to the preset design threshold, it is determined that the current lightweight design scheme meets the design requirements; if the design absolute value is greater than the preset design threshold, it is determined that the current lightweight design scheme does not meet the design requirements, and the key dimension parameters of the slotting or hole opening are readjusted and the lightweight loss calculation process and the design requirement judgment process are repeated until the lightweight design scheme meets the design requirements.

[0013] A lightweight design system for GIS conductors includes: A first calculation module for performing eddy current field calculation on a pre-constructed three-dimensional simulation model of a GIS conductor to obtain a current density nephogram and an original eddy current loss value; A lightweight design module for obtaining the pre-lightweight position of the three-dimensional simulation model of the GIS conductor based on the current density nephogram, and simultaneously performing slotting or hole opening at the pre-lightweight position of the three-dimensional simulation model of the GIS conductor to obtain a lightweight design scheme and a lightweight conductor model; A second calculation module for performing a lightweight loss calculation process: performing eddy current field calculation on the lightweight conductor model to obtain a lightweight conductor loss value; A judgment module for performing a design requirement judgment process: obtaining a design absolute value based on the original eddy current loss value and the lightweight conductor loss value, and judging whether the current lightweight design scheme meets the design requirements based on the comparison result between the design absolute value and the preset design threshold; if it meets the requirements, the current lightweight design scheme is output; otherwise, the key dimension parameters of the slotting or hole opening are readjusted and the lightweight loss calculation process and the design requirement judgment process are repeated until the lightweight design scheme meets the design requirements.

[0014] A device includes: A memory for storing a computer program; A processor for implementing the steps of the above-mentioned GIS conductor lightweight design method when executing the computer program.

[0015] A computer-readable storage medium stores a computer program, and the computer program is used to implement the steps of the above-mentioned GIS conductor lightweight design method when executed by a processor.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a method for lightweight design of GIS conductors. This method constructs a three-dimensional simulation model of the GIS conductor and calculates the eddy current field to identify the low current density regions in the conductor as the pre-lightweight positions. Subsequently, slotting or hole-opening designs are carried out at the pre-lightweight positions to form a lightweight conductor model, and the eddy current field is calculated again to evaluate the conductor losses after lightweighting. By comparing the original eddy current loss value with the loss value after lightweighting and combining with the preset design threshold, it is possible to systematically determine whether the lightweight design scheme meets the established performance requirements. If not, the key dimensional parameters of the slotting or hole-opening are iteratively adjusted to continuously optimize the design scheme until the goal of reducing weight while ensuring stable and reliable electrical performance is achieved. Using this method effectively overcomes the limitation of the traditional empirical design lacking systematic theoretical guidance, significantly improves the optimization and reliability of the lightweight design of GIS conductors, and reduces the risks of performance degradation and safety hazards during long-term use.

[0017] Preferably, in the present invention, a model is established using three-dimensional software and simplified, making the simulation model of the GIS conductor easier to process and calculate, while retaining the key performance characteristics. The contact resistance is equivalent to a solid ring, further simplifying the model, improving the calculation efficiency, and maintaining the calculation accuracy.

[0018] Preferably, in the present invention, the specific steps of the eddy current field calculation include model import, definition of conductor units and material properties, and setting of the solution domain, excitation conditions, and boundary conditions. These steps ensure the accuracy and reliability of the eddy current field calculation and provide a solid foundation for subsequent design optimization.

[0019] Preferably, in the present invention, the resistivity of the equivalent ring is calculated through measured resistance values, improving the accuracy of the simulation model. This method takes into account the influence of the actual contact resistance, making the simulation results closer to the actual situation, thereby improving the reliability of the lightweight design.

[0020] Preferably, in the present invention, the pre-lightweight positions are determined based on the current density cloud map, making the lightweight design more scientific and reasonable. By selecting the parts with lower current density for lightweighting, the weight can be minimized while ensuring the conductor performance.

[0021] Preferably, in the present invention, slotting or hole-opening designs are carried out in combination with the external electric field of the GIS conductor and the processability, improving the practicability and feasibility of the lightweight design and ensuring that the lightweighted conductor has good performance and manufacturability in actual applications.

[0022] Preferably, in the present invention, the specific steps of the design requirement judgment process include the calculation of the absolute value of the increase in loss and the absolute value of the decrease in quality, as well as the calculation of the design absolute value and the comparison with the preset design threshold; this process ensures that the lightweight design solution can meet the weight reduction requirement without significantly affecting the electrical performance of the conductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. is a flowchart of a method for lightweight design of a GIS conductor provided by an embodiment of the present invention; Figure 2 FIG. is a three-dimensional model diagram of the simplified conductor provided by an embodiment of the present invention; Figure 3 FIG. is a diagram of boundary condition setting provided by an embodiment of the present invention; wherein, (a) is the first boundary condition; (b) is the second boundary condition; Figure 4 FIG. is a current density cloud diagram of the conductor provided by an embodiment of the present invention; Figure 5 FIG. is a loss diagram of the conductor provided by an embodiment of the present invention; Figure 6 FIG. is a diagram of a part with a relatively small current density of the moving-side conductor provided by an embodiment of the present invention; Figure 7 FIG. is a diagram of the initial lightweight design solution of the moving-side conductor provided by an embodiment of the present invention; Figure 8 FIG. is a loss diagram of the initial lightweight design of the moving-side conductor provided by an embodiment of the present invention; Figure 9 FIG. is a diagram of a part with a relatively small current density of the static-side conductor provided by an embodiment of the present invention; Figure 10 FIG. is the initial lightweight design solution of the static-side conductor provided by an embodiment of the present invention; Figure 11 FIG. is the loss of the initial lightweight design of the static-side conductor provided by an embodiment of the present invention; Figure 12 FIG. is the second lightweight design solution of the static-side conductor provided by an embodiment of the present invention; Figure 13 FIG. is the loss of the second lightweight design of the moving-side conductor provided by an embodiment of the present invention; Figure 14 FIG. is a flowchart of a method for lightweight design of a GIS conductor provided by the present invention; Figure 15 FIG. is a schematic structural diagram of a system for lightweight design of a GIS conductor provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To further understand the content of the present invention, the following provides a detailed description of the present invention in combination with the accompanying drawings and specific embodiments. It should be understood that the embodiments are merely for explaining the present invention rather than limiting it.

[0025] Embodiment 1 As described in the background art, currently, when the industry conducts lightweight design of GIS cast conductors, it mostly relies on traditional empirical rules to reduce weight by means such as grooving or perforating. Although this method achieves a certain weight reduction effect to some extent, it lacks systematic theoretical guidance and is difficult to ensure the optimization and reliability of the design scheme. In addition, if the weight reduction position is inappropriate or the weight reduction size is too large, it will lead to an increase in conductor loss and serious heating, affecting the product performance; if the weight reduction size is too small, although the conductor loss does not increase significantly, the meaning of lightweight design is lost.

[0026] To solve the above problems, this embodiment provides a lightweight design method for GIS conductors. This method establishes a three-dimensional simulation model of GIS, conducts eddy current field simulation calculation on the cast conductor, extracts the current density cloud map and eddy current loss value, determines the grooving or perforating position for lightweight design of the conductor according to the current density cloud map, and determines the grooving or perforating size for lightweight design of the conductor according to the eddy current loss of the conductor.

[0027] This embodiment provides a lightweight design method for GIS conductors, including: Conduct eddy current field calculation for the pre-built three-dimensional simulation model of the GIS conductor to obtain the current density cloud map and the original eddy current loss value; Based on the current density cloud map, obtain the pre-lightweight position of the three-dimensional simulation model of the GIS conductor, and at the same time, groove or perforate at the pre-lightweight position of the three-dimensional simulation model of the GIS conductor to obtain the lightweight design scheme and the lightweight conductor model; Lightweight loss calculation process: Conduct eddy current field calculation for the lightweight conductor model to obtain the lightweight conductor loss value; Design requirement judgment process: Obtain the design absolute value based on the original eddy current loss value and the lightweight conductor loss value, and judge whether the current lightweight design scheme meets the design requirements based on the comparison result between the design absolute value and the preset design threshold; if it meets, output the current lightweight design scheme; otherwise, re-adjust the key dimensional parameters of grooving or perforating and repeat the lightweight loss calculation process and the design requirement judgment process until the lightweight design scheme meets the design requirements.

[0028] The following further explains the design method provided in this embodiment in combination with the accompanying drawings: As Figure 1 shown, this embodiment provides a lightweight design method for GIS conductors, specifically as follows: Step 1: Establish a three-dimensional simulation model of the GIS conductor, perform Maxwell eddy current field calculation on the three-dimensional simulation model of the GIS conductor, and extract the current density cloud map and the original eddy current loss value; Step 2: According to the current density cloud map, select the location with lower current density, and make grooves or holes in the conductor by comprehensively considering the external electric field of the conductor and the processing technology, so as to obtain the initial lightweight design scheme and lightweight conductor model; among which, the location with lower current density indicates that the current density of this location is lower than the preset current density reference value.

[0029] Step 3: For the initial lightweight design solution, eddy current field calculation is performed on the lightweight conductor model to obtain the lightweight conductor loss value; Step 4: Compare the lightweight conductor loss value with the original eddy current loss value. If the loss increase is small and meets the design threshold requirements, output the initial lightweight design scheme, which includes key dimensions such as the shape, length, and width of the slot or hole. At this point, the conductor lightweight design is completed; if it does not meet the design threshold requirements, change the slot or hole size, and re-execute steps 3 and 4 until the current lightweight design scheme meets the design threshold requirements.

[0030] Taking the disconnector in GIS as an example, this method is used to design the disconnector in a lightweight way. The specific implementation process is as follows: The first step is to use 3D software to establish a 3D simulation model of the GIS disconnector conductor and simplify the model as necessary; the contact resistance between the moving contact and the conductor is equivalent to a solid ring. The simplified 3D model is as follows Figure 2 shown.

[0031] The second step is to import the simplified three-dimensional model into the Maxwell platform (other electric field calculation software can also be used), define the conductor units and material properties of each part, and determine the resistivity of the equivalent circular ring through the resistivity formula ρ=R·S / L based on the measured resistance of the contact resistance; set the solution domain, and set the excitation and boundary conditions. In the formula, ρ is the resistivity of the equivalent circular ring; S is the cross-sectional area of ​​the equivalent circular ring; and L is the length of the equivalent circular ring.

[0032] Set as Figure 3 SF shown 6 The solution domain is as follows: Figure 3 (a) and (b) in the figure; current excitation (rated current 5000A) is applied at a frequency of 50Hz. The current flows into the conductor end face on the moving side and flows out from the conductor end face on the stationary side.

[0033] Step 3: Figure 4 and Figure 5 As shown, the eddy current field is calculated for the simplified three-dimensional model, and the current density cloud map and original eddy current loss value of the conductor are extracted; Step 4: Begin the lightweight design of the moving-side conductor and the static-side conductor separately. The mass of the original conductor is shown in Table 1: Table 1 is the mass of the original conductor

[0034] The more specific steps are as follows: Step 4.1: According to the current density cloud map of the moving-side conductor, it can be seen that the current density in the red circle area is relatively low. As Figure 6 shown, select the red circle area for lightweight design. The initial lightweight design scheme is as Figure 7 shown. Perform eddy current field calculation on the moving-side conductor of this design scheme, and extract the corresponding eddy current loss, as Figure 8 shown.

[0035] Compare the loss value of the moving-side conductor after lightweight design with the original eddy current loss value, as shown in Table 2. According to Table 2, it can be seen that after lightweight design, the absolute value of the increase in conductor loss / the absolute value of the decrease in mass, that is, the design absolute value is only 2.152, which is less than the required threshold (preset design threshold) of 5 for this design. Therefore, this lightweight design scheme is available.

[0036] Table 2 is the result of the lightweight design of the moving-side conductor

[0037] Output the current lightweight design scheme, including the relevant information about the slots on the moving-side conductor. The slot width is 35 mm, the total length is 155 mm, and the lightweight design of the conductor is completed.

[0038] Step 4.2: According to the current density cloud map of the static-side conductor, it can be seen that the current density in the red circle area is relatively low. As Figure 9 shown, select the red circle area for lightweight design. The initial lightweight design scheme is as Figure 10 shown. Perform eddy current field calculation on the static-side conductor of this scheme, and extract the eddy current loss, as Figure 11 shown.

[0039] Compare the loss value of the static-side conductor after lightweight design with the original eddy current loss value, as shown in Table 3. According to Table 3, it can be seen that after lightweight design, the absolute value of the increase in conductor loss / the absolute value of the decrease in mass, that is, the design absolute value is 5.679, which is greater than the required threshold of 5 for this design. Therefore, this lightweight design scheme is not available and needs to be further optimized.

[0040] Table 3 is the result of the initial lightweight design of the static-side conductor

[0041] Change the slot size of the static-side conductor, and design the second version of the lightweight design scheme of the static-side conductor as Figure 12As shown in the figure, the eddy current field of the static-side conductor of this solution is calculated, and the original eddy current loss value is extracted, as Figure 13 shown.

[0042] The losses of the static-side conductor after lightweight design are compared with those of the original conductor, as shown in Table 4. It can be seen from Table 4 that after lightweight design, the absolute value of the increase in conductor loss / the absolute value of the reduction in mass, that is, the design absolute value is 4.871, which is less than the required threshold of 5 for this design. Therefore, this lightweight design solution is available and the lightweight design is completed.

[0043] Table 4 shows the results of the second lightweight design of the static-side conductor

[0044] In summary, the current lightweight design solution is output, including the relevant information about the slots on the static-side conductor, the slot width is 30 mm, the total length is 250 mm, and the lightweight design of the conductor is completed.

[0045] It should be noted that the slots for the lightweight design of the conductor in this embodiment are long holes, and the actual removed shape of the conductor can be designed into any shape according to needs.

[0046] At the same time, in this embodiment, the conductor removes materials only at one part, and the actual conductor can remove materials at multiple parts according to needs.

[0047] It can be seen from this that for the GIS conductor lightweight design method provided in this embodiment, the core key points of this solution are as follows: First, through the eddy current field calculation of the GIS conductor, the conductor current density cloud map and losses are obtained; Second, determine the material removal position for lightweight design according to the current density cloud map; Third, determine the material removal ratio for lightweight design according to the conductor loss comparison; Fourth, repeat the loop execution until the design requirements are met, and finally complete the lightweight design of the conductor.

[0048] Adopting this design method effectively solves the problem that the lightweight design of the cast conductor in the current GIS mostly relies on traditional experience and has no systematic theoretical support, making the lightweight design of the conductor more scientific, simple and efficient.

[0049] Embodiment 2 As Figure 14 shown, this embodiment provides a GIS conductor lightweight design method, including the following steps: Perform eddy current field calculation on the pre-constructed three-dimensional simulation model of the GIS conductor to obtain the current density cloud map and the original eddy current loss value; Based on the current density cloud map, the pre-lightweight position of the GIS conductor three-dimensional simulation model is obtained, and at the same time, slots or holes are opened at the pre-lightweight position of the GIS conductor three-dimensional simulation model to obtain a lightweight design scheme and a lightweight conductor model; Lightweight loss calculation process: Calculate the eddy current field for the lightweight conductor model to obtain the lightweight conductor loss value; Design requirement judgment process: The design absolute value is obtained based on the original eddy current loss value and the lightweight conductor loss value, and whether the current lightweight design scheme meets the design requirements is judged based on the comparison result between the design absolute value and the preset design threshold; if it does, the current lightweight design scheme is output; otherwise, the key size parameters of the slots or holes are readjusted and the lightweight loss calculation process and the design requirement judgment process are repeated until the lightweight design scheme meets the design requirements.

[0050] Among them, a three-dimensional simulation model of the GIS conductor is established using three-dimensional software; and the contact resistance between the moving contact and the conductor of the GIS conductor is equivalent to a solid circular ring, and an equivalent circular ring is obtained to simplify the three-dimensional simulation model of the GIS conductor.

[0051] Here, the specific steps of calculating the eddy current field include: The simplified GIS conductor three-dimensional simulation model is imported into the eddy current field calculation software, and the conductor units and material properties of each part of the GIS conductor are defined respectively, and the solution domain, excitation conditions and boundary conditions are set respectively; The eddy current field is calculated, and the current density cloud map and the original eddy current loss value are extracted; among which, the material properties of the equivalent circular ring are defined based on the resistivity of the equivalent circular ring.

[0052] The resistivity of the above equivalent circular ring is obtained based on the measured resistance value of the resistor, and the specific formula is as follows: ρ=R·S / L Where ρ is the resistivity of the equivalent circular ring; S is the cross-sectional area of ​​the equivalent circular ring; and L is the length of the equivalent circular ring.

[0053] In this embodiment, the specific steps of obtaining the pre-lightweight position of the GIS conductor three-dimensional simulation model based on the current density cloud map are as follows: According to the current density cloud map, the GIS conductor three-dimensional simulation model corresponds to the parts with lower current density; The portion with lower current density corresponding to the three-dimensional simulation model of the GIS conductor is output as a pre-lightweight position; wherein, the portion with lower current density indicates that the current density of this portion is lower than a preset current density reference value.

[0054] In combination with the external electric field and processing properties of the GIS conductor, slots or holes are opened at the pre-lightweighted positions of the GIS conductor three-dimensional simulation model.

[0055] Here, the specific steps of the design requirement judgment process are as follows: Calculate the absolute value of the increased loss based on the original eddy current loss value and the lightweight conductor loss value; Calculate the absolute value of the mass reduction based on the mass of the GIS conductor three-dimensional simulation model and the mass of the lightweight conductor model; Calculate the design absolute value based on the absolute value of the increased loss and the absolute value of the mass reduction; Compare the design absolute value with the preset design threshold. If the design absolute value is less than or equal to the preset design threshold, it is determined that the current lightweight design scheme meets the design requirements; if the design absolute value is greater than the preset design threshold, it is determined that the current lightweight design scheme does not meet the design requirements, and the key dimension parameters of the slotting or hole opening are readjusted and the lightweight loss calculation process and the design requirement judgment process are repeated until the lightweight design scheme meets the design requirements.

[0056] As Figure 15 shown, this embodiment also provides a GIS conductor lightweight design system, including: a first calculation module for performing eddy current field calculation on a pre-constructed GIS conductor three-dimensional simulation model to obtain a current density cloud map and an original eddy current loss value; a lightweight design module for obtaining the pre-lightweight position of the GIS conductor three-dimensional simulation model based on the current density cloud map, and simultaneously performing slotting or hole opening at the pre-lightweight position of the GIS conductor three-dimensional simulation model to obtain a lightweight design scheme and a lightweight conductor model; a second calculation module for performing the lightweight loss calculation process: performing eddy current field calculation on the lightweight conductor model to obtain a lightweight conductor loss value; a judgment module for performing the design requirement judgment process: obtaining a design absolute value based on the original eddy current loss value and the lightweight conductor loss value, and judging whether the current lightweight design scheme meets the design requirements based on the comparison result between the design absolute value and the preset design threshold; if it meets the requirements, output the current lightweight design scheme; otherwise, readjust the key dimension parameters of the slotting or hole opening and repeat the lightweight loss calculation process and the design requirement judgment process until the lightweight design scheme meets the design requirements.

[0057] The present invention also provides a device, including: a memory for storing a computer program; a processor for implementing the steps of the GIS conductor lightweight design method when executing the computer program.

[0058] When the processor executes the computer program, it implements the steps of the above-mentioned lightweight design of the GIS conductor. For example, it calculates the eddy current field for the pre-built 3D simulation model of the GIS conductor to obtain the current density cloud map and the original eddy current loss value; based on the current density cloud map, it obtains the pre-lightweight position of the 3D simulation model of the GIS conductor, and at the same time, slots or opens holes at the pre-lightweight position of the 3D simulation model of the GIS conductor to obtain the lightweight design scheme and the lightweight conductor model; it executes the lightweight loss calculation process: calculates the eddy current field for the lightweight conductor model to obtain the lightweight conductor loss value; it executes the design requirement judgment process: obtains the design absolute value based on the original eddy current loss value and the lightweight conductor loss value, and judges whether the current lightweight design scheme meets the design requirements based on the comparison result between the design absolute value and the preset design threshold; if it meets the requirements, it outputs the current lightweight design scheme; otherwise, it re-adjusts the key dimensional parameters of the slotting or hole opening and repeats the execution of the lightweight loss calculation process and the design requirement judgment process until the lightweight design scheme meets the design requirements.

[0059] Alternatively, when the processor executes the computer program, it implements the functions of each module in the above-mentioned system. For example, the first calculation module is used to calculate the eddy current field for the pre-built 3D simulation model of the GIS conductor to obtain the current density cloud map and the original eddy current loss value; the lightweight design module is used to obtain the pre-lightweight position of the 3D simulation model of the GIS conductor based on the current density cloud map, and at the same time, slots or opens holes at the pre-lightweight position of the 3D simulation model of the GIS conductor to obtain the lightweight design scheme and the lightweight conductor model; the second calculation module is used to execute the lightweight loss calculation process: calculates the eddy current field for the lightweight conductor model to obtain the lightweight conductor loss value; the judgment module is used to execute the design requirement judgment process: obtains the design absolute value based on the original eddy current loss value and the lightweight conductor loss value, and judges whether the current lightweight design scheme meets the design requirements based on the comparison result between the design absolute value and the preset design threshold; if it meets the requirements, it outputs the current lightweight design scheme; otherwise, it re-adjusts the key dimensional parameters of the slotting or hole opening and repeats the execution of the lightweight loss calculation process and the design requirement judgment process until the lightweight design scheme meets the design requirements.

[0060] Exemplarily, the computer program may be divided into one or more modules / units, which are stored in the memory and executed by the processor to complete the present invention. The one or more modules / units may be a series of computer program instruction segments capable of completing preset functions, and the instruction segments are used to describe the execution process of the computer program in the GIS conductor lightweight design device. For example, the computer program may be divided into a first calculation module, a lightweight design module, a second calculation module, and a judgment module; the specific functions of each module are as follows: The first calculation module is used to perform eddy current field calculation on the pre-constructed three-dimensional simulation model of the GIS conductor to obtain a current density cloud map and an original eddy current loss value; the lightweight design module is used to obtain the pre-lightweight position of the three-dimensional simulation model of the GIS conductor based on the current density cloud map, and at the same time, perform grooving or hole opening at the pre-lightweight position of the three-dimensional simulation model of the GIS conductor to obtain a lightweight design scheme and a lightweight conductor model; the second calculation module is used to execute the lightweight loss calculation process: perform eddy current field calculation on the lightweight conductor model to obtain a lightweight conductor loss value; the judgment module is used to execute the design requirement judgment process: obtain a design absolute value based on the original eddy current loss value and the lightweight conductor loss value, and judge whether the current lightweight design scheme meets the design requirements based on the comparison result between the design absolute value and a preset design threshold; if it meets the requirements, output the current lightweight design scheme; otherwise, re-adjust the key dimensional parameters of the grooving or hole opening and repeat the execution of the lightweight loss calculation process and the design requirement judgment process until the lightweight design scheme meets the design requirements.

[0061] The GIS conductor lightweight design device may be a computing device such as a desktop computer, a notebook, a palm computer, and a cloud server. The GIS conductor lightweight design device may include, but is not limited to, a processor and a memory. Those skilled in the art can understand that the above are examples of the GIS conductor lightweight design device, which do not constitute a limitation on the GIS conductor lightweight design device, and may include more components than the above, or combine some components, or different components. For example, the GIS conductor lightweight design device may further include input / output devices, network access devices, a bus, etc.

[0062] The so-called processor may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The processor is the control center of the lightweight design of the GIS conductor, and connects various parts of the entire lightweight design device of the GIS conductor through various interfaces and circuits.

[0063] The memory can be used to store the computer programs and / or modules. The processor realizes various functions of the lightweight design device of the GIS conductor by running or executing the computer programs and / or modules stored in the memory, and by calling the data stored in the memory.

[0064] The memory may mainly include a program storage area and a data storage area. Among them, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone (such as audio data, phone book, etc.). In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0065] The present invention also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of a method for lightweight design of a GIS conductor are realized.

[0066] If the modules / units integrated in the lightweight design system of the GIS conductor are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.

[0067] Based on such understanding, all or part of the processes in the above GIS conductor lightweight design method of the present invention can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above GIS conductor lightweight design method can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file, or preset intermediate form, etc.

[0068] The computer-readable storage medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc.

[0069] It should be noted that the content included in the computer-readable storage medium can be appropriately increased or decreased according to the requirements of legislation and patent practice within the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable storage medium does not include electrical carrier signals and telecommunication signals.

[0070] The above embodiments are only one of the implementation manners capable of implementing the technical solution of the present invention. The scope of protection required by the present invention is not only limited by this embodiment, but also includes any changes, substitutions, and other implementation manners that are easily conceivable by those skilled in the art within the technical scope disclosed by the present invention. Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: still can modify the specific implementation manners of the present invention or make equivalent substitutions, and any modification or equivalent substitution without departing from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A GIS conductor lightweight design method, characterized in that: include: The eddy current field is calculated for the pre-built GIS conductor three-dimensional simulation model to obtain the current density cloud map and the original eddy current loss value; Based on the current density cloud map, the pre-lightweight position of the GIS conductor three-dimensional simulation model is obtained, and at the same time, slots or holes are opened at the pre-lightweight position of the GIS conductor three-dimensional simulation model to obtain a lightweight design scheme and a lightweight conductor model; Lightweight loss calculation process: Calculate the eddy current field for the lightweight conductor model to obtain the lightweight conductor loss value; Design requirement judgment process: The design absolute value is obtained based on the original eddy current loss value and the lightweight conductor loss value, and the comparison result between the design absolute value and the preset design threshold value is used to judge whether the current lightweight design scheme meets the design requirements; If satisfied, the current lightweight design solution is output; Otherwise, the key size parameters of the slots or holes are readjusted and the lightweight loss calculation process and the design requirement judgment process are repeated until the lightweight design scheme meets the design requirements.

2. The GIS conductor lightweight design method according to claim 1 is characterized in that: A three-dimensional simulation model of the GIS conductor is established using three-dimensional software; and the contact resistance between the moving contact and the conductor of the GIS conductor is equivalent to a solid circular ring, and an equivalent circular ring is obtained to simplify the three-dimensional simulation model of the GIS conductor.

3. The GIS conductor lightweight design method according to claim 2 is characterized in that: The specific steps of the eddy current field calculation include: The simplified GIS conductor three-dimensional simulation model is imported into the eddy current field calculation software, and the conductor units and material properties of each part of the GIS conductor are defined respectively, and the solution domain, excitation conditions and boundary conditions are set respectively; The eddy current field is calculated, and the current density cloud map and the original eddy current loss value are extracted; among which, the material properties of the equivalent circular ring are defined based on the resistivity of the equivalent circular ring.

4. The GIS conductor lightweight design method according to claim 3, characterized in that: The resistivity of the equivalent circular ring is obtained based on the measured resistance value of the resistor, and the specific formula is as follows: ρ=R·S / L Where ρ is the resistivity of the equivalent circular ring; S is the cross-sectional area of ​​the equivalent circular ring; and L is the length of the equivalent circular ring.

5. The GIS conductor lightweight design method according to claim 1, characterized in that: The specific steps of obtaining the pre-lightweight position of the GIS conductor three-dimensional simulation model based on the current density cloud map are as follows: According to the current density cloud map, the GIS conductor three-dimensional simulation model corresponds to the parts with lower current density; The portion with lower current density corresponding to the three-dimensional simulation model of the GIS conductor is output as a pre-lightweight position; wherein, the portion with lower current density indicates that the current density of this portion is lower than a preset current density reference value.

6. The GIS conductor lightweight design method according to claim 1, characterized in that: In combination with the external electric field and processing properties of the GIS conductor, slots or holes are opened at the pre-lightweighted positions of the GIS conductor three-dimensional simulation model.

7. The GIS conductor lightweight design method according to claim 1, characterized in that: The specific steps of the design requirement judgment process are as follows: The absolute value of loss increase is calculated based on the original eddy current loss value and the lightweight conductor loss value; The absolute value of mass reduction is calculated based on the mass of the GIS conductor three-dimensional simulation model and the mass of the lightweight conductor model; The design absolute value is calculated based on the absolute value of loss increase and the absolute value of quality reduction; The design absolute value is compared with the preset design threshold. If the design absolute value is less than or equal to the preset design threshold, it is judged that the current lightweight design scheme meets the design requirements. If the design absolute value is greater than the preset design threshold, it is judged that the current lightweight design scheme does not meet the design requirements, and the key size parameters of the slots or holes are readjusted and the lightweight loss calculation process and the design requirement judgment process are repeated until the lightweight design scheme meets the design requirements.

8. A GIS conductor lightweight design system, characterized in that: include: The first calculation module is used to calculate the eddy current field for the pre-built GIS conductor three-dimensional simulation model to obtain the current density cloud map and the original eddy current loss value; A lightweight design module is used to obtain the pre-lightweight position of the GIS conductor three-dimensional simulation model based on the current density cloud map, and to make grooves or holes in the pre-lightweight position of the GIS conductor three-dimensional simulation model to obtain a lightweight design scheme and a lightweight conductor model; The second calculation module is used to execute the lightweight loss calculation process: perform eddy current field calculation on the lightweight conductor model to obtain the lightweight conductor loss value; A judgment module is used to execute the design requirement judgment process: obtain the design absolute value based on the original eddy current loss value and the lightweight conductor loss value, and judge whether the current lightweight design scheme meets the design requirements based on the comparison result between the design absolute value and the preset design threshold value; If satisfied, the current lightweight design solution is output; Otherwise, the key size parameters of the slots or holes are readjusted and the lightweight loss calculation process and the design requirement judgment process are repeated until the lightweight design scheme meets the design requirements.

9. A device, characterized in that: include: Memory for storing computer programs; A processor is used to implement the steps of the GIS conductor lightweight design method described in any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, it is used to implement the steps of the GIS conductor lightweight design method described in any one of claims 1-7.

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