Method and device for determining cable joint simulation model and computer equipment

Abstract

The application relates to a cable joint simulation model determination method, device and computer equipment. The method comprises the following steps: obtaining structural feature data and structural resistance data of a cable joint, and based on the structural feature data; performing simulation processing on a cable joint simulation model to obtain temperature field distribution information of the cable joint and determine a first temperature distribution curve; based on the structural resistance data of the cable joint, an equivalent resistance model is established, and simulation processing is performed on the equivalent resistance model to obtain a second temperature distribution curve; in the case that the distribution difference between the first temperature distribution curve and the second temperature distribution curve is greater than a difference threshold value, the structural resistance data in the equivalent resistance model is adjusted, and the above step is returned until the distribution difference is less than the difference threshold value; when the distribution difference is less than the difference threshold value, the equivalent resistance model less than the difference threshold value is taken as a target cable joint simulation model. The method can improve the simulation efficiency of the cable joint simulation model.

Description

Technical Field

[0001] This application relates to the field of computer technology, and in particular to a method, apparatus and computer equipment for determining a simulation model of a cable joint. Background Technology

[0002] In current simulation studies of cable joints, cable joints typically have complex geometries that require detailed mesh generation. Furthermore, cable joints often have numerous boundary conditions, and the handling of these boundary conditions requires consideration of the interactions between multiple physical quantities, leading to increased computational complexity and time consumption. Therefore, improving the simulation accuracy of cable joint structures is a current research focus.

[0003] Currently, the finite element method and other algorithms are commonly used to determine the simulation model of cable joint structures for simulation analysis. However, the structural feature data of the cable joint simulation model obtained by the above algorithms are too detailed, which makes the running speed of the cable joint simulation model very slow, resulting in low simulation efficiency. Summary of the Invention

[0004] Therefore, it is necessary to provide a method, apparatus, computer equipment, computer-readable storage medium, and computer program product for determining a cable joint simulation model to address the aforementioned technical problems.

[0005] Firstly, this application provides a method for determining a simulation model of a cable joint. The method includes:

[0006] Obtain the structural feature data of each cable joint and the structural resistance data corresponding to each structural feature data, and establish a simulation model of the cable joint based on each structural feature data;

[0007] The cable joint simulation model is subjected to simulated current transmission processing to obtain the temperature field distribution information of the cable joint. Based on the temperature field distribution information, the temperature data corresponding to each of the structural feature data is identified to obtain the first temperature distribution curve of the cable joint simulation model.

[0008] Based on the structural resistance data of the cable joint, an equivalent resistance model is established, and the equivalent resistance model is subjected to simulated current transmission processing to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model.

[0009] If the difference between the first temperature distribution curve and the second temperature distribution curve is greater than the difference threshold, adjust the structural resistance data in the equivalent resistance model, and return to perform the simulation current transmission processing on the equivalent resistance model to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model. Continue until the difference between the first temperature distribution curve and the second temperature distribution curve is less than the difference threshold, and use the equivalent resistance model that is less than the difference threshold as the target cable joint simulation model.

[0010] Optionally, the step of performing simulated current transmission processing on the cable joint simulation model to obtain the temperature field distribution information of the cable joint includes:

[0011] The cable joint simulation model is subjected to simulated current transmission processing to obtain the temperature field information and the current carrying capacity information of the cable joint simulation model.

[0012] Based on the temperature field information and current carrying capacity information of the cable joint simulation model, the temperature field information is processed by electrothermal coupling to obtain the temperature field distribution information of the cable joint.

[0013] Optionally, the step of identifying the temperature data corresponding to each of the structural feature data based on the temperature field distribution information to obtain the first temperature distribution curve of the cable joint simulation model includes:

[0014] Obtain the connection relationship between the structural information corresponding to each structural feature data of the cable connector, and determine the axial arrangement order between each piece of structural information based on the connection relationship;

[0015] In the temperature field distribution information, the temperature data corresponding to each structural information is extracted according to the axial arrangement order to obtain the temperature data corresponding to the structural feature data of each structural information.

[0016] The temperature data corresponding to each of the structural feature data are arranged according to the axial arrangement order corresponding to the structural information of each of the structural feature data to obtain the first temperature distribution curve of the cable joint simulation model.

[0017] Optionally, the step of performing simulation current transfer processing on the equivalent resistance model to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model includes:

[0018] The equivalent resistance model is subjected to simulated current transmission processing to obtain the temperature field distribution information of the equivalent resistance model, and the structural information corresponding to each structural resistance data is identified.

[0019] In the temperature field distribution information of the equivalent resistance model, the temperature data corresponding to each structural information is extracted according to the axial arrangement order to obtain the temperature data of the structural resistance data corresponding to each structural information.

[0020] According to the axial arrangement order, the temperature data of each of the structural resistance data are arranged and processed to obtain the second temperature distribution curve corresponding to the equivalent resistance model.

[0021] Optionally, before adjusting the structural resistance data in the equivalent resistance model, the method further includes:

[0022] The temperature difference between the temperature data of each structural information in the first temperature distribution curve and the second temperature distribution curve is calculated respectively to obtain the temperature difference value corresponding to each structural information. Based on the temperature difference value corresponding to each structural information, the average temperature difference between the first temperature distribution curve and the second temperature distribution curve is calculated.

[0023] Calculate the curvature of the first temperature distribution curve and the curvature of the second temperature distribution curve, and calculate the curvature difference between the curvature of the first temperature distribution curve and the curvature of the second temperature distribution curve.

[0024] Based on the average temperature difference and the curvature difference, the distribution difference between the first temperature distribution curve and the second temperature distribution curve is determined.

[0025] Optionally, adjusting the structural resistance data in the equivalent resistance model includes:

[0026] Identify the resistivity of the structural resistance data corresponding to each structural information, and the resistance model radius of the structural resistance data corresponding to each structural information, and calculate the resistance value of each structural resistance data based on the resistivity, the resistance model radius, and the resistance value equivalence algorithm.

[0027] Based on the temperature difference value corresponding to each of the structural information, the variable value of the resistance value corresponding to each of the structural information is determined, and based on the variable value of each of the resistance values, the resistivity adjustment value of each structural resistance data and the resistance model radius adjustment value of each structural resistance data are obtained through the inverse operation of the resistance value equivalence algorithm.

[0028] Based on the resistivity adjustment value and the resistance model radius adjustment value of each of the structural resistance data, the structural resistance data are adjusted.

[0029] Secondly, this application also provides a device for determining a simulation model of a cable joint. The device includes:

[0030] The acquisition module is used to acquire the structural feature data of the cable joint and the structural resistance data corresponding to each of the structural feature data, and to establish a simulation model of the cable joint based on each of the structural feature data.

[0031] The first distribution module is used to perform simulated current transmission processing on the cable joint simulation model to obtain the temperature field distribution information of the cable joint, and based on the temperature field distribution information, identify the temperature data corresponding to each of the structural feature data to obtain the first temperature distribution curve of the cable joint simulation model.

[0032] The second distribution module is used to establish an equivalent resistance model based on the structural resistance data of the cable joint, and to perform simulation current transmission processing on the equivalent resistance model to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model.

[0033] The determination module is used to adjust the structural resistance data in the equivalent resistance model when the distribution difference between the first temperature distribution curve and the second temperature distribution curve is greater than the difference threshold, and return to perform the simulation current transmission processing on the equivalent resistance model to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model, until the distribution difference between the first temperature distribution curve and the second temperature distribution curve is less than the difference threshold, and then use the equivalent resistance model that is less than the difference threshold as the target cable joint simulation model.

[0034] Optionally, the first distribution module is specifically used for:

[0035] The cable joint simulation model is subjected to simulated current transmission processing to obtain the temperature field information and the current carrying capacity information of the cable joint simulation model.

[0036] Based on the temperature field information and current carrying capacity information of the cable joint simulation model, the temperature field information is processed by electrothermal coupling to obtain the temperature field distribution information of the cable joint.

[0037] Optionally, the first distribution module is specifically used for:

[0038] Obtain the connection relationship between the structural information corresponding to each structural feature data of the cable connector, and determine the axial arrangement order between each piece of structural information based on the connection relationship;

[0039] In the temperature field distribution information, the temperature data corresponding to each structural information is extracted according to the axial arrangement order to obtain the temperature data corresponding to the structural feature data of each structural information.

[0040] The temperature data corresponding to each of the structural feature data are arranged according to the axial arrangement order corresponding to the structural information of each of the structural feature data to obtain the first temperature distribution curve of the cable joint simulation model.

[0041] Optionally, the second distribution module is specifically used for:

[0042] The equivalent resistance model is subjected to simulated current transmission processing to obtain the temperature field distribution information of the equivalent resistance model, and the structural information corresponding to each structural resistance data is identified.

[0043] In the temperature field distribution information of the equivalent resistance model, the temperature data corresponding to each structural information is extracted according to the axial arrangement order to obtain the temperature data of the structural resistance data corresponding to each structural information.

[0044] According to the axial arrangement order, the temperature data of each of the structural resistance data are arranged and processed to obtain the second temperature distribution curve corresponding to the equivalent resistance model.

[0045] Optionally, the device further includes:

[0046] The first calculation module is used to calculate the temperature difference between the temperature data of each structural information in the first temperature distribution curve and the second temperature distribution curve respectively, to obtain the temperature difference corresponding to each structural information, and to calculate the average temperature difference between the first temperature distribution curve and the second temperature distribution curve based on the temperature difference corresponding to each structural information.

[0047] The second calculation module is used to calculate the distribution curvature of the first temperature distribution curve and the distribution curvature of the second temperature distribution curve, and to calculate the curvature difference between the distribution curvature of the first temperature distribution curve and the distribution curvature of the second temperature distribution curve.

[0048] The distribution difference determination module is used to determine the distribution difference between the first temperature distribution curve and the second temperature distribution curve based on the average temperature difference and the curvature difference.

[0049] Optionally, the determining module is used to:

[0050] Identify the resistivity of the structural resistance data corresponding to each structural information, and the resistance model radius of the structural resistance data corresponding to each structural information, and calculate the resistance value of each structural resistance data based on the resistivity, the resistance model radius, and the resistance value equivalence algorithm.

[0051] Based on the temperature difference value corresponding to each of the structural information, the variable value of the resistance value corresponding to each of the structural information is determined, and based on the variable value of each of the resistance values, the resistivity adjustment value of each structural resistance data and the resistance model radius adjustment value of each structural resistance data are obtained through the inverse operation of the resistance value equivalence algorithm.

[0052] Based on the resistivity adjustment value and the resistance model radius adjustment value of each of the structural resistance data, the structural resistance data are adjusted.

[0053] Thirdly, this application also provides a computer device. The computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the steps of the method described in any one of the first aspects.

[0054] Fourthly, this application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, implements the steps of the method described in any one of the first aspects.

[0055] Fifthly, this application also provides a computer program product. The computer program product includes a computer program that, when executed by a processor, implements the steps of the method described in any one of the first aspects.

[0056] The aforementioned method, apparatus, and computer equipment for determining the cable joint simulation model acquire structural feature data of the cable joint and corresponding structural resistance data, and establish a cable joint simulation model based on the structural feature data. The simulation model is then processed to simulate current transmission, obtaining temperature field distribution information. Based on this temperature field distribution information, the temperature data corresponding to each structural feature data is identified, resulting in a first temperature distribution curve for the cable joint simulation model. Finally, an equivalent resistance model is established based on the structural resistance data of the cable joint, and simulated current transmission is performed on this equivalent resistance model. The process involves processing the data to obtain a second temperature distribution curve corresponding to the temperature data of each structural resistance data in the equivalent resistance model. If the difference between the first temperature distribution curve and the second temperature distribution curve is greater than a difference threshold, the process adjusts the structural resistance data in the equivalent resistance model and returns to perform simulation current transmission processing on the equivalent resistance model to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data in the equivalent resistance model. This process continues until the difference between the first temperature distribution curve and the second temperature distribution curve is less than a difference threshold. In this case, the equivalent resistance model with a difference threshold is used as the target cable joint simulation model. By simulating current transmission in the established cable joint simulation model and the equivalent resistance model corresponding to the structural resistance data of the cable joint, the first temperature distribution curve of the cable joint simulation model and the second temperature distribution curve of the equivalent resistance model are obtained. Then, the distribution difference between the first temperature distribution curve and the second temperature distribution curve is calculated, thereby adjusting the equivalent resistance model. The difference between the temperature distribution curves of the two models is used to adjust the gap between the equivalent resistance model and the original cable joint simulation model. Finally, the cable joint simulation model with a complex structure is replaced by the equivalent resistance model corresponding to the distribution difference less than the difference threshold. Thus, while ensuring the simulation accuracy of the cable joint simulation model, only the equivalent resistance model is used as the cable joint simulation model, improving the simulation efficiency of the cable joint simulation model. Attached Figure Description

[0057] Figure 1 This is a flowchart illustrating the method for determining the simulation model of a cable joint in one embodiment;

[0058] Figure 2 This is a flowchart illustrating an example of determining a simulation model for a cable connector in one embodiment.

[0059] Figure 3 This is a structural block diagram of the device for determining the simulation model of a cable joint in one embodiment;

[0060] Figure 4 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0061] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0062] The method for determining the cable joint simulation model provided in this application is mainly applied to the application environment corresponding to the cable joint simulation process. This method can be applied to terminals, servers, or systems including both terminals and servers, and is implemented through interaction between the terminals and servers. The server can be a standalone server or a server cluster composed of multiple servers. The terminal can be, but is not limited to, various personal computers, laptops, smartphones, tablets, etc. The terminal performs simulation current transmission processing on the established cable joint simulation model and the equivalent resistance model corresponding to the structural resistance data of the cable joint to obtain a first temperature distribution curve of the cable joint simulation model and a second temperature distribution curve of the equivalent resistance model. Then, it calculates the distribution difference between the first and second temperature distribution curves, thereby adjusting the equivalent resistance model. This adjustment uses the distribution difference between the temperature distribution curves of the two models to adjust the gap between the equivalent resistance model and the original cable joint simulation model. Finally, the cable joint simulation model with a distribution difference less than a threshold value is used to replace the complex structure cable joint simulation model. Thus, while ensuring the simulation accuracy of the cable joint simulation model, only the equivalent resistance model is used as the cable joint simulation model, improving the simulation efficiency of the cable joint simulation model.

[0063] In one embodiment, such as Figure 1 As shown, a method for determining a simulation model of a cable joint is provided. Taking the application of this method to a terminal as an example, the method includes the following steps:

[0064] Step S101: Obtain the structural feature data of the cable joint and the structural resistance data corresponding to each structural feature data, and establish a simulation model of the cable joint based on each structural feature data.

[0065] In this embodiment, in response to the user's cable joint structure information upload operation, the terminal acquires data information of each structural information of the cable joint, obtaining structural feature data of the cable joint. The cable joint includes, but is not limited to, power cable information and joint information. The structural information of the power cable information includes cable conductor information, shielding layer information, insulation layer information, metal shielding layer information, and outer sheath information, while the structural information of the joint information includes stress cone information, crimping tube information, shielding tube information, and insulation layer information. Then, based on each structural feature data, the terminal uses a resistance fitting strategy to fit the resistivity and resistance model radius corresponding to each structural feature data. Using the resistivity and resistance model radius of each structural feature data, the terminal determines the structural resistance data of that structural feature data. Finally, based on the obtained structural feature data, the terminal establishes a cable joint simulation model using traditional cable joint simulation model establishment methods.

[0066] Step S102: Perform simulation current transmission processing on the cable joint simulation model to obtain the temperature field distribution information of the cable joint. Based on the temperature field distribution information, identify the temperature data corresponding to each structural feature data to obtain the first temperature distribution curve of the cable joint simulation model.

[0067] In this embodiment, the terminal, based on a cable joint simulation model, performs simulated current transmission processing on the model using preset simulation voltage and current, and obtains the temperature field distribution information corresponding to each structural feature data of the cable joint during the simulation process. The temperature field distribution information refers to the distribution of temperature data corresponding to all structural feature data of the cable joint simulation model. The specific process for determining the temperature field distribution information will be explained in detail later. Then, based on this temperature field distribution information, the terminal identifies the temperature data corresponding to each structural feature data and arranges them according to the axial arrangement order of the structural information corresponding to each structural feature data, obtaining the first temperature distribution curve of the cable joint simulation model. The axial arrangement order refers to the spatial arrangement order of the structural information of the cable joint along the axial direction.

[0068] Step S103: Based on the structural resistance data of the cable joint, establish an equivalent resistance model, and perform simulation current transmission processing on the equivalent resistance model to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model.

[0069] In this embodiment, the terminal establishes an equivalent resistance model corresponding to each structural resistance data point based on the structural resistance data of the cable joint, according to the axial arrangement order corresponding to each structural resistance data point. Then, the terminal performs simulated current transmission processing on the equivalent resistance model based on the same voltage and current as the cable joint simulation model, obtaining a second temperature distribution curve corresponding to the temperature data of each structural resistance data point in the equivalent resistance model. The specific process of determining the second temperature distribution curve will be explained in detail later.

[0070] Step S104: If the difference between the first temperature distribution curve and the second temperature distribution curve is greater than the difference threshold, adjust the structural resistance data in the equivalent resistance model, and return to perform simulation current transmission processing on the equivalent resistance model to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model. Continue until the difference between the first temperature distribution curve and the second temperature distribution curve is less than the difference threshold, and use the equivalent resistance model with a difference threshold as the target cable joint simulation model.

[0071] In this embodiment, the terminal calculates the distribution difference between the first temperature distribution curve and the second temperature distribution curve, and determines whether the distribution difference is greater than a difference threshold. If the distribution difference is not greater than the difference threshold, the terminal directly determines the equivalent resistance model as the target cable joint simulation model. If the distribution difference is greater than the difference threshold, the terminal adjusts the resistance data of each structure in the equivalent resistance model based on the distribution difference. Then, the terminal returns to step S103 until the distribution difference between the first and second temperature distribution curves is less than the difference threshold. At this point, the terminal uses the equivalent resistance model with a difference less than the difference threshold as the target cable joint simulation model. The specific process of adjusting the equivalent resistance model will be explained in detail later. The distribution difference includes the average temperature difference between the two temperature distribution curves and the distribution curvature difference between the two temperature distribution curves. This distribution difference is used to characterize the similarity gap between the cable joint simulation model and the equivalent resistance model. The larger the distribution difference, the larger the similarity gap between the two models; the smaller the distribution difference, the smaller the similarity gap between the two models.

[0072] Based on the above scheme, by performing simulation current transmission processing on the established cable joint simulation model and the equivalent resistance model corresponding to the structural resistance data of the cable joint, the first temperature distribution curve of the cable joint simulation model and the second temperature distribution curve of the equivalent resistance model are obtained. Then, the distribution difference between the first temperature distribution curve and the second temperature distribution curve is calculated, thereby adjusting the equivalent resistance model. The difference between the temperature distribution curves of the two models is used to adjust the gap between the equivalent resistance model and the original cable joint simulation model. Finally, the cable joint simulation model with complex structure is replaced by the equivalent resistance model corresponding to the distribution difference less than the difference threshold. Thus, while ensuring the simulation accuracy of the cable joint simulation model, only the equivalent resistance model is used as the cable joint simulation model, improving the simulation efficiency of the cable joint simulation model.

[0073] Optionally, the cable joint simulation model is subjected to simulated current transmission processing to obtain the temperature field distribution information of the cable joint, including: performing simulated current transmission processing on the cable joint simulation model to obtain the temperature field information and current carrying capacity information of the cable joint simulation model; and performing electrothermal coupling calculation processing on the temperature field information based on the temperature field information and current carrying capacity information of the cable joint simulation model to obtain the temperature field distribution information of the cable joint.

[0074] In this embodiment, the terminal presets the simulation voltage and simulation current. By performing simulation current transmission processing on the cable joint simulation model in a simulated cable transmission environment, the temperature field information and current carrying capacity information of the cable joint simulation model are obtained. For example, the cable joint and cable body surface meet thermal radiation boundary conditions, and the convective heat transfer coefficient is set to 5 W / (m²K). The air temperature can be set according to actual conditions. For the cable body cross-sections at both ends, when heat dissipation reaches equilibrium, there is almost no heat transfer along the short axial distance of the cable body, and the heat flux density is 0; therefore, thermal insulation boundary conditions are set. Then, based on the temperature field information and current carrying capacity information of the cable joint simulation model, the terminal performs electrothermal coupling calculation processing on the temperature field information to obtain the temperature field distribution information of the cable joint. The electrothermal coupling calculation method uses the relationship between cable conductor temperature and current carrying capacity in IEC-60287 for coupling calculation.

[0075] Based on the above scheme, the temperature field information and current carrying capacity information of the cable joint simulation model are used to perform electrothermal coupling calculations on the temperature field information to obtain the temperature field distribution information of the cable joint, thereby improving the accuracy of the determined temperature field distribution information of the cable joint.

[0076] Optionally, based on the temperature field distribution information, the temperature data corresponding to each structural feature data is identified to obtain the first temperature distribution curve of the cable joint simulation model. This includes: obtaining the connection relationship between the structural information corresponding to each structural feature data of the cable joint, and determining the axial arrangement order between each structural information based on the connection relationship; extracting the temperature data corresponding to each structural information in the temperature field distribution information according to the axial arrangement order to obtain the temperature data corresponding to the structural feature data of each structural information; and arranging the temperature data corresponding to each structural feature data according to the axial arrangement order corresponding to the structural information of each structural feature data to obtain the first temperature distribution curve of the cable joint simulation model.

[0077] In this embodiment, the terminal acquires the connection relationships between the structural information corresponding to the structural feature data of the cable joint. This connection relationship refers to the physical connection relationship between the various structural information of the cable joint. Then, based on the axial connection order of the structural information corresponding to this connection relationship, the terminal determines the axial arrangement order of the structural information. Here, the axial direction represents the current transmission direction. Next, the terminal extracts the temperature data corresponding to each structural information from the temperature field distribution information according to the axial arrangement order, obtaining the temperature data corresponding to the structural feature data of each structural information. Finally, the terminal arranges the temperature data corresponding to each structural feature data according to the axial arrangement order corresponding to the structural information of each structural feature data, obtaining the first temperature distribution curve of the cable joint simulation model.

[0078] Based on the above scheme, the arrangement order of the temperature data of the cable joint is determined by the physical connection relationship of the structural information of the cable joint, which improves the rationality of the first temperature distribution curve and the arrangement efficiency of the first temperature distribution curve.

[0079] Optionally, the equivalent resistance model is subjected to simulated current transmission processing to obtain a second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model. This includes: performing simulated current transmission processing on the equivalent resistance model to obtain the temperature field distribution information of the equivalent resistance model, and identifying the structural information corresponding to each structural resistance data; extracting the temperature data corresponding to each structural information in the temperature field distribution information of the equivalent resistance model according to the axial arrangement order to obtain the temperature data of the structural resistance data corresponding to each structural information; and arranging the temperature data of each structural resistance data according to the axial arrangement order to obtain the second temperature distribution curve corresponding to the equivalent resistance model.

[0080] In this embodiment, the terminal performs simulated current transmission processing on the equivalent resistance model using the same simulated voltage, current, and environment as the cable joint simulation model, obtaining the temperature field distribution information of the equivalent resistance model. Then, the terminal identifies the structural information corresponding to each structural resistance data point. From the temperature field distribution information of the equivalent resistance model, the terminal extracts the temperature data corresponding to each structural information point according to their axial arrangement order, obtaining the temperature data of the structural resistance data corresponding to each structural information point. Finally, the terminal arranges the temperature data of the structural resistance data corresponding to each structural information point according to their axial arrangement order, obtaining the second temperature distribution curve corresponding to the equivalent resistance model.

[0081] Based on the above scheme, the second temperature distribution curve is obtained by performing the same simulation processing on the equivalent resistance model, thereby ensuring that the equivalent information of the similarity between the equivalent resistance model and the cable structure simulation model can be directly identified, and improving the accuracy of adjusting the equivalent resistance model.

[0082] Optionally, before adjusting the resistance data of each structure in the equivalent resistance model, the method further includes: calculating the temperature difference between the temperature data of each structural information in the first temperature distribution curve and the second temperature distribution curve, obtaining the temperature difference corresponding to each structural information, and calculating the average temperature difference between the first temperature distribution curve and the second temperature distribution curve based on the temperature difference corresponding to each structural information; calculating the distribution curvature of the first temperature distribution curve and the distribution curvature of the second temperature distribution curve, and calculating the curvature difference between the distribution curvature of the first temperature distribution curve and the distribution curvature of the second temperature distribution curve; and determining the distribution difference between the first temperature distribution curve and the second temperature distribution curve based on the average temperature difference and the curvature difference.

[0083] In this embodiment, the terminal calculates the temperature difference between the temperature data of each structural information in the first temperature distribution curve and the second temperature distribution curve, respectively, to obtain the temperature difference value corresponding to each structural information. The formula for calculating the temperature difference value is as follows:

[0084] Max(T 1i -T 2i <0.2℃

[0085] In the above formula, T 1i Temperature data and T corresponding to various structural information in the cable structure simulation model. 2i The temperature data corresponding to each structural information of the equivalent resistance model are given, where i∈1~n is the virtual number corresponding to each structural information, and n is the number of all structural information.

[0086] Based on the temperature differences corresponding to each structural information, the terminal calculates the average temperature difference between the first and second temperature distribution curves. Then, using the curve curvature calculation formula, the terminal calculates the distribution curvature of both the first and second temperature distribution curves, and calculates the curvature difference between them. Finally, based on the average temperature difference and the curvature difference, the terminal determines the distribution difference between the first and second temperature distribution curves.

[0087] Based on the above scheme, by calculating the average temperature difference and the curvature difference, the distribution difference between the first temperature distribution curve and the second temperature distribution curve is determined, thereby improving the accuracy of the determined distribution difference.

[0088] Optionally, adjusting the structural resistance data in the equivalent resistance model includes: identifying the resistivity of the structural resistance data corresponding to each structural information and the resistance model radius of the structural resistance data corresponding to each structural information; calculating the resistance value of each structural resistance data based on each resistivity, each resistance model radius, and the resistance value equivalence algorithm; determining the variable value of the resistance value corresponding to each structural information based on the temperature difference value corresponding to each structural information; and obtaining the resistivity adjustment value and the resistance model radius adjustment value of each structural resistance data through the inverse operation of the resistance value equivalence algorithm based on the variable value of each resistance value; and adjusting each structural resistance data based on the resistivity adjustment value and the resistance model radius adjustment value of each structural resistance data.

[0089] In this embodiment, the terminal identifies the resistivity of the structural resistance data corresponding to each structural information, as well as the radius of the resistance model for the structural resistance data corresponding to each structural information. Then, based on the resistivity, the radius of the resistance model, and the resistance value equivalence algorithm, the terminal calculates the resistance value of each structural resistance data. The calculation formula for the resistance value equivalence algorithm is as follows:

[0090]

[0091]

[0092] In the above formula, the resistivity of the cable conductor is ρ1 and the radius is r1, the resistivity of the crimped conductor is ρ2 and the radius is r2, the conductor resistance is R1 and the crimped conductor resistance is R2, and the conductor resistance and the crimped conductor resistance are the resistance values ​​of the structural resistance data.

[0093] Based on the temperature difference corresponding to each structural information, the terminal determines the variable value of the resistance value corresponding to each structural information. Then, based on the variable value of each resistance value, it performs the inverse operation of the resistance value equivalence algorithm to obtain the resistivity adjustment value and the resistance model radius adjustment value for each structural resistance data. Finally, the terminal adjusts the structural resistance data based on the resistivity adjustment value and the resistance model radius adjustment value.

[0094] Based on the above scheme, the resistivity adjustment value of each structural resistance data corresponding to the temperature difference value of each structural information and the resistance model radius adjustment value of each structural resistance data are determined by the resistance value equivalent algorithm and the inverse operation of the resistance value equivalent algorithm, thereby improving the adjustment accuracy of the equivalent resistance model.

[0095] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0096] This application also provides an example of determining a simulation model for a cable joint, such as... Figure 2 As shown, the specific processing procedure includes the following steps:

[0097] Step S201: Obtain the structural feature data of the cable joint and the structural resistance data corresponding to each structural feature data, and establish a simulation model of the cable joint based on each structural feature data.

[0098] Step S202: Perform simulation current transmission processing on the cable joint simulation model to obtain the temperature field information and current carrying capacity information of the cable joint simulation model.

[0099] Step S203: Based on the temperature field information and current carrying capacity information of the cable joint simulation model, perform electrothermal coupling calculation on the temperature field information to obtain the temperature field distribution information of the cable joint.

[0100] Step S204: Obtain the connection relationship between the structural information corresponding to each structural feature data of the cable joint, and determine the axial arrangement order between each structural information based on the connection relationship.

[0101] Step S205: In the temperature field distribution information, according to the axial arrangement order, extract the temperature data corresponding to each structural information to obtain the temperature data corresponding to the structural feature data of each structural information.

[0102] Step S206: Arrange the temperature data corresponding to each structural feature data according to the axial arrangement order corresponding to the structural information of each structural feature data to obtain the first temperature distribution curve of the cable joint simulation model.

[0103] Step S207: Based on the structural resistance data of the cable joint, establish an equivalent resistance model.

[0104] Step S208: Perform simulation current transmission processing on the equivalent resistance model to obtain the temperature field distribution information of the equivalent resistance model, and identify the structural information corresponding to each structural resistance data.

[0105] Step S209: In the temperature field distribution information of the equivalent resistance model, the temperature data corresponding to each structural information is extracted according to the axial arrangement order to obtain the temperature data of the structural resistance data corresponding to each structural information.

[0106] Step S210: Arrange the temperature data of each structural resistance data according to the axial arrangement order to obtain the second temperature distribution curve corresponding to the equivalent resistance model.

[0107] Step S211: Calculate the temperature difference between the temperature data of each structural information in the first temperature distribution curve and the second temperature distribution curve respectively, obtain the temperature difference corresponding to each structural information, and calculate the average temperature difference between the first temperature distribution curve and the second temperature distribution curve based on the temperature difference corresponding to each structural information.

[0108] Step S212: Calculate the distribution curvature of the first temperature distribution curve and the distribution curvature of the second temperature distribution curve, and calculate the curvature difference between the distribution curvature of the first temperature distribution curve and the distribution curvature of the second temperature distribution curve.

[0109] Step S213: Based on the average temperature difference and the curvature difference, determine the distribution difference between the first temperature distribution curve and the second temperature distribution curve.

[0110] Step S214: If the difference between the first temperature distribution curve and the second temperature distribution curve is greater than the difference threshold, identify the resistivity of the structural resistance data corresponding to each structural information and the resistance model radius of the structural resistance data corresponding to each structural information, and calculate the resistance value of each structural resistance data based on each resistivity, each resistance model radius, and the resistance value equivalence algorithm.

[0111] Step S215: Based on the temperature difference corresponding to each structural information, determine the variable value of the resistance value corresponding to each structural information, and based on the variable value of each resistance value, obtain the resistivity adjustment value of each structural resistance data and the resistance model radius adjustment value of each structural resistance data through the inverse operation of the resistance value equivalence algorithm.

[0112] Step S216: Adjust the structural resistance data based on the resistivity adjustment value and the resistance model radius adjustment value of each structural resistance data.

[0113] Step S217: Return to the step of performing simulation current transmission processing on the equivalent resistance model to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model, until the distribution difference between the first temperature distribution curve and the second temperature distribution curve is less than the difference threshold, and the equivalent resistance model with a difference threshold is used as the target cable joint simulation model.

[0114] Based on the same inventive concept, this application also provides a device for determining a cable joint simulation model to implement the method for determining the cable joint simulation model described above. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations of one or more embodiments of the device for determining a cable joint simulation model provided below can be found in the limitations of the method for determining the cable joint simulation model above, and will not be repeated here.

[0115] In one embodiment, such as Figure 3 As shown, a device for determining a simulation model of a cable joint is provided, comprising: an acquisition module 310, a first distribution module 320, a second distribution module 330, and a determination module 340, wherein:

[0116] The acquisition module 310 is used to acquire the structural feature data of the cable joint and the structural resistance data corresponding to each of the structural feature data, and to establish a simulation model of the cable joint based on each of the structural feature data.

[0117] The first distribution module 320 is used to perform simulated current transmission processing on the cable joint simulation model to obtain the temperature field distribution information of the cable joint, and based on the temperature field distribution information, identify the temperature data corresponding to each of the structural feature data to obtain the first temperature distribution curve of the cable joint simulation model.

[0118] The second distribution module 330 is used to establish an equivalent resistance model based on the structural resistance data of the cable joint, and to perform simulation current transmission processing on the equivalent resistance model to obtain a second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model.

[0119] The determination module 340 is used to adjust the structural resistance data in the equivalent resistance model when the distribution difference between the first temperature distribution curve and the second temperature distribution curve is greater than the difference threshold, and return to perform the simulation current transmission processing on the equivalent resistance model to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model, until the distribution difference between the first temperature distribution curve and the second temperature distribution curve is less than the difference threshold, and then use the equivalent resistance model that is less than the difference threshold as the target cable joint simulation model.

[0120] Optionally, the first distribution module 320 is specifically used for:

[0121] The cable joint simulation model is subjected to simulated current transmission processing to obtain the temperature field information and the current carrying capacity information of the cable joint simulation model.

[0122] Based on the temperature field information and current carrying capacity information of the cable joint simulation model, the temperature field information is processed by electrothermal coupling to obtain the temperature field distribution information of the cable joint.

[0123] Optionally, the first distribution module 320 is specifically used for:

[0124] Obtain the connection relationship between the structural information corresponding to each structural feature data of the cable connector, and determine the axial arrangement order between each piece of structural information based on the connection relationship;

[0125] In the temperature field distribution information, the temperature data corresponding to each structural information is extracted according to the axial arrangement order to obtain the temperature data corresponding to the structural feature data of each structural information.

[0126] The temperature data corresponding to each of the structural feature data are arranged according to the axial arrangement order corresponding to the structural information of each of the structural feature data to obtain the first temperature distribution curve of the cable joint simulation model.

[0127] Optionally, the second distribution module 330 is specifically used for:

[0128] The equivalent resistance model is subjected to simulated current transmission processing to obtain the temperature field distribution information of the equivalent resistance model, and the structural information corresponding to each structural resistance data is identified.

[0129] In the temperature field distribution information of the equivalent resistance model, the temperature data corresponding to each structural information is extracted according to the axial arrangement order to obtain the temperature data of the structural resistance data corresponding to each structural information.

[0130] According to the axial arrangement order, the temperature data of each of the structural resistance data are arranged and processed to obtain the second temperature distribution curve corresponding to the equivalent resistance model.

[0131] Optionally, the device further includes:

[0132] The first calculation module is used to calculate the temperature difference between the temperature data of each structural information in the first temperature distribution curve and the second temperature distribution curve respectively, to obtain the temperature difference corresponding to each structural information, and to calculate the average temperature difference between the first temperature distribution curve and the second temperature distribution curve based on the temperature difference corresponding to each structural information.

[0133] The second calculation module is used to calculate the distribution curvature of the first temperature distribution curve and the distribution curvature of the second temperature distribution curve, and to calculate the curvature difference between the distribution curvature of the first temperature distribution curve and the distribution curvature of the second temperature distribution curve.

[0134] The distribution difference determination module is used to determine the distribution difference between the first temperature distribution curve and the second temperature distribution curve based on the average temperature difference and the curvature difference.

[0135] Optionally, the determining module 340 is used for:

[0136] Identify the resistivity of the structural resistance data corresponding to each structural information, and the resistance model radius of the structural resistance data corresponding to each structural information, and calculate the resistance value of each structural resistance data based on the resistivity, the resistance model radius, and the resistance value equivalence algorithm.

[0137] Based on the temperature difference value corresponding to each of the structural information, the variable value of the resistance value corresponding to each of the structural information is determined, and based on the variable value of each of the resistance values, the resistivity adjustment value of each structural resistance data and the resistance model radius adjustment value of each structural resistance data are obtained through the inverse operation of the resistance value equivalence algorithm.

[0138] Based on the resistivity adjustment value and the resistance model radius adjustment value of each of the structural resistance data, the structural resistance data are adjusted.

[0139] Each module in the aforementioned device for determining the cable joint simulation model can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0140] In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 4 As shown, the computer device includes a processor, memory, communication interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When executed by the processor, the computer program implements a method for determining a cable connector simulation model. The display screen can be an LCD screen or an e-ink display screen. The input devices can be a touch layer covering the display screen, buttons, a trackball, or a touchpad mounted on the computer device casing, or an external keyboard, touchpad, or mouse.

[0141] Those skilled in the art will understand that Figure 4 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0142] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the method described in any one of the first aspects.

[0143] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in any one of the first aspects.

[0144] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps of the method described in any one of the first aspects.

[0145] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0146] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0147] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0148] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method for determining a simulation model of a cable joint, characterized in that, The method includes: Obtain the structural feature data of each cable joint and the structural resistance data corresponding to each structural feature data, and establish a simulation model of the cable joint based on each structural feature data; The cable joint simulation model is subjected to simulated current transmission processing to obtain the temperature field distribution information of the cable joint. Based on the temperature field distribution information, the temperature data corresponding to each of the structural feature data is identified to obtain the first temperature distribution curve of the cable joint simulation model. Based on the structural resistance data of the cable joint, an equivalent resistance model is established, and the equivalent resistance model is subjected to simulated current transmission processing to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model. When the difference between the distribution curves of the first and second temperature distribution curves is greater than the difference threshold; Identify the resistivity of the structural resistance data corresponding to each structural information, and the resistance model radius of the structural resistance data corresponding to each structural information, and calculate the resistance value of each structural resistance data based on the resistivity, the resistance model radius, and the resistance value equivalence algorithm. Based on the temperature difference value corresponding to each of the structural information, the variable value of the resistance value corresponding to each of the structural information is determined, and based on the variable value of each of the resistance values, the resistivity adjustment value of each structural resistance data and the resistance model radius adjustment value of each structural resistance data are obtained through the inverse operation of the resistance value equivalence algorithm. Based on the resistivity adjustment value and the resistance model radius adjustment value of each of the structural resistance data, the structural resistance data are adjusted. Return to the step of performing simulation current transmission processing on the equivalent resistance model to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model, until the distribution difference between the first temperature distribution curve and the second temperature distribution curve is less than the difference threshold, and then use the equivalent resistance model that is less than the difference threshold as the target cable joint simulation model.

2. The method according to claim 1, characterized in that, The process of simulating current transmission in the cable joint simulation model to obtain the temperature field distribution information of the cable joint includes: The cable joint simulation model is processed to simulate current transmission, thereby obtaining the temperature field information and current carrying capacity information of the cable joint simulation model. Based on the temperature field information and current carrying capacity information of the cable joint simulation model, the temperature field information is processed by electrothermal coupling to obtain the temperature field distribution information of the cable joint.

3. The method according to claim 2, characterized in that, The step of identifying the temperature data corresponding to each of the structural feature data based on the temperature field distribution information to obtain the first temperature distribution curve of the cable joint simulation model includes: Obtain the connection relationship between the structural information corresponding to each structural feature data of the cable joint, and determine the axial arrangement order between each piece of structural information based on the connection relationship; In the temperature field distribution information, the temperature data corresponding to each structural information is extracted according to the axial arrangement order to obtain the temperature data corresponding to the structural feature data of each structural information. The temperature data corresponding to each of the structural feature data are arranged according to the axial arrangement order corresponding to the structural information of each of the structural feature data to obtain the first temperature distribution curve of the cable joint simulation model.

4. The method according to claim 3, characterized in that, The process of simulating current transfer on the equivalent resistance model to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model includes: The equivalent resistance model is subjected to simulated current transmission processing to obtain the temperature field distribution information of the equivalent resistance model, and the structural information corresponding to each structural resistance data is identified. In the temperature field distribution information of the equivalent resistance model, the temperature data corresponding to each structural information is extracted according to the axial arrangement order to obtain the temperature data of the structural resistance data corresponding to each structural information. According to the axial arrangement order, the temperature data of each of the structural resistance data are arranged and processed to obtain the second temperature distribution curve corresponding to the equivalent resistance model.

5. The method according to claim 3, characterized in that, Before adjusting the structural resistance data in the equivalent resistance model, the method further includes: The temperature difference between the temperature data of each structural information in the first temperature distribution curve and the second temperature distribution curve is calculated respectively to obtain the temperature difference value corresponding to each structural information. Based on the temperature difference value corresponding to each structural information, the average temperature difference between the first temperature distribution curve and the second temperature distribution curve is calculated. Calculate the curvature of the first temperature distribution curve and the curvature of the second temperature distribution curve, and calculate the curvature difference between the curvature of the first temperature distribution curve and the curvature of the second temperature distribution curve. Based on the average temperature difference and the curvature difference, the distribution difference between the first temperature distribution curve and the second temperature distribution curve is determined.

6. A device for determining a simulation model of a cable joint, characterized in that, The device includes: The acquisition module is used to acquire the structural feature data of the cable joint and the structural resistance data corresponding to each of the structural feature data, and to establish a simulation model of the cable joint based on each of the structural feature data. The first distribution module is used to perform simulated current transmission processing on the cable joint simulation model to obtain the temperature field distribution information of the cable joint, and based on the temperature field distribution information, identify the temperature data corresponding to each of the structural feature data to obtain the first temperature distribution curve of the cable joint simulation model. The second distribution module is used to establish an equivalent resistance model based on the structural resistance data of the cable joint, and to perform simulation current transmission processing on the equivalent resistance model to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data of the equivalent resistance model. The determination module is configured to: identify the resistivity of the structural resistance data corresponding to each structural information and the resistance model radius of the structural resistance data corresponding to each structural information when the distribution difference between the first temperature distribution curve and the second temperature distribution curve is greater than a difference threshold; calculate the resistance value of each structural resistance data based on the resistivity, the resistance model radius, and the resistance value equivalence algorithm; determine the variable value of the resistance value corresponding to each structural information based on the temperature difference corresponding to each structural information; and obtain the structural resistance number based on the variable value of each resistance value through the inverse operation of the resistance value equivalence algorithm. The resistivity adjustment value and the resistance model radius adjustment value of each structural resistance data are used to adjust each structural resistance data. The process then returns to perform a simulation current transmission process on the equivalent resistance model to obtain the second temperature distribution curve corresponding to the temperature data of each structural resistance data in the equivalent resistance model. This continues until the distribution difference between the first temperature distribution curve and the second temperature distribution curve is less than a difference threshold. Then, the equivalent resistance model with a difference threshold is used as the target cable joint simulation model.

7. The apparatus according to claim 6, characterized in that, The first distribution module is specifically used for: The cable joint simulation model is processed to simulate current transmission, thereby obtaining the temperature field information and current carrying capacity information of the cable joint simulation model. Based on the temperature field information and current carrying capacity information of the cable joint simulation model, the temperature field information is processed by electrothermal coupling to obtain the temperature field distribution information of the cable joint.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 5.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.

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