Methods, devices and electronic equipment for processing line parameter information

Abstract

This application discloses a method, apparatus, and electronic device for processing line parameter information, relating to the field of power systems. The method includes: after receiving an evaluation request for a target transmission line, obtaining the construction information of the target transmission line; determining the target weight of each of N line parameters based on the construction information; selecting M target line parameters from the N line parameters based on the target weight of each line parameter; and determining the electrical evaluation result of the target transmission line based on the M target line parameters and the target weight corresponding to each target line parameter. The electrical evaluation result is used to verify the operating status of the target transmission line. This application solves the technical problem of low efficiency in evaluating the operating status of transmission lines in complex and ever-changing transmission environments due to the inability to effectively select key parameters affecting the electrical evaluation results.

Description

Technical Field

[0001] This application relates to the field of power systems, and more specifically, to a method, apparatus, and electronic device for processing line parameter information. Background Technology

[0002] In the construction and operation of overhead transmission lines, the accuracy of theoretical line parameter calculations is crucial for determining the protection settings of newly constructed lines.

[0003] In related technologies, numerous problems exist in calculating line parameters in complex and ever-changing power transmission environments. Traditional manual methods have significant errors, while formula-based and software simulation methods, due to insufficient consideration of factors such as the wiring configuration of measured line parameters, lead to inconsistencies between calculated and reported parameters, resulting in inaccurate theoretical line parameters. This not only increases the complexity of protection setting calculations but may also affect the smooth commissioning of the line. Furthermore, the diverse topography and geological conditions along the transmission line result in complex and variable equivalent resistance parameters, making it difficult to accurately calculate the key electrical parameters of the transmission line. This leads to significant uncertainty in the determination of electrical parameters and protection setting calculations before project commissioning. In some special projects, large discrepancies between measured and actual line parameters may even lead to difficulties in protection setting, low efficiency in assessing the operational status of the transmission line, and ultimately, serious impacts on power generation.

[0004] There is currently no effective solution to the above problems. Summary of the Invention

[0005] This application provides a method, apparatus, and electronic device for processing line parameter information, in order to at least solve the technical problem of low efficiency in assessing the operating status of transmission lines in complex and ever-changing power transmission environments, due to the inability to effectively select key parameters that affect the electrical assessment results of the lines.

[0006] According to one aspect of the embodiments of this application, a method for processing line parameter information is provided, comprising: after receiving an evaluation request for a target transmission line, obtaining construction information of the target transmission line, wherein the construction information includes at least the topology information of the target transmission line, the geographical information of the line layout area, and the line construction time; determining a target weight for each of N line parameters based on the construction information, wherein the N line parameters include at least the conductor parameters, line geometric layout parameters, line operating environment parameters, line aging parameters, and ground wire configuration parameters of the target transmission line; selecting M target line parameters from the N line parameters according to the target weight of each line parameter, wherein M is an integer greater than 1 and less than N; and determining an electrical evaluation result of the target transmission line based on the M target line parameters and the target weight corresponding to each target line parameter, wherein the electrical evaluation result is used to verify the operating status of the target transmission line.

[0007] Optionally, the target weight of each of the N line parameters is determined based on the construction information, including: setting an initial weight for each of the N line parameters, wherein the initial weights of the line operating environment parameters and ground wire configuration parameters are greater than the initial weights of the conductor parameters, line geometric layout parameters, and line aging parameters; and adjusting the initial weights of each line parameter based on the construction information to obtain the target weight of each line parameter.

[0008] Optionally, the line operating environment parameters include at least the ambient temperature, the power system frequency corresponding to the target transmission line, and the target soil resistivity of the area where the target transmission line is located, wherein the initial weight of the target soil resistivity is greater than the initial weight of the ambient temperature and the power system frequency.

[0009] Optionally, the initial weights of each line parameter are adjusted based on the construction information to obtain the target weights of each line parameter. This includes: determining the conductor type of the target transmission line based on its topology information; determining the ambient temperature of the target transmission line based on the geographical information of the line layout area; obtaining the resistance variation of each type of conductor under the ambient temperature conditions of the target transmission line; and adjusting the initial weights of the conductor parameters based on the resistance variation to obtain the target weights of the conductor parameters. The adjustment range of the initial weights of the conductor parameters is positively correlated with the resistance variation.

[0010] Optionally, the initial weights of each line parameter are adjusted based on the construction information to obtain the target weights of each line parameter. This includes: determining the line complexity of the target transmission line based on its topology information, wherein the line complexity is determined by the number of towers, the tower spacing, the ground wire support height, and the phase sequence of the target transmission line; and adjusting the initial weights of the line geometric layout parameters based on the line complexity to obtain the target weights of the line geometric layout parameters, wherein the adjustment range of the initial weights of the line geometric layout parameters is positively correlated with the line complexity.

[0011] Optionally, the initial weights of each line parameter are adjusted based on the construction information to obtain the target weights of each line parameter. This includes: determining the soil complexity of the area where the target transmission line is located based on the line operation environment parameters of the target transmission line, wherein the soil complexity is determined by the number of soil types, the overlap between different types of soil, and the area of ​​each type of soil; adjusting the initial weights of the line operation environment parameters based on the soil complexity of the area where the target transmission line is located to obtain the target weights of the line operation environment parameters, wherein the adjustment range of the initial weights of the line operation environment parameters is positively correlated with the soil complexity.

[0012] Optionally, the initial weights of each line parameter are adjusted based on the construction information to obtain the target weights of each line parameter, including: determining the operating time of the target transmission line based on the line construction time; adjusting the initial weights of the line aging parameters based on the operating time to obtain the target weights of the line aging parameters, wherein the adjustment range of the initial weights of the line aging parameters is positively correlated with the operating time of the target transmission line.

[0013] Optionally, the initial weights of each line parameter are adjusted based on the construction information to obtain the target weights of each line parameter. This includes: determining the number of ground wires, ground wire material, ground wire installation method, and the relative position of the ground wires to the live wires based on the topology information of the target transmission line; determining the zero-sequence impedance variation range of the target transmission line based on the number of ground wires, ground wire material, ground wire installation method, and the relative position of the ground wires to the live wires; and adjusting the initial weights of the ground wire configuration parameters based on the zero-sequence impedance variation range of the target transmission line to obtain the target weights of the ground wire configuration parameters. The adjustment range of the initial weights of the ground wire configuration parameters is positively correlated with the zero-sequence impedance variation range of the target transmission line.

[0014] Optionally, based on the target weight of each line parameter, select M target line parameters from the N line parameters, including: sorting the N line parameters according to the target weight of each line parameter, and selecting the M line parameters with the largest target weight from the N line parameters as the M target line parameters based on the sorting result.

[0015] Optionally, before determining the target weight of each of the N line parameters based on the construction information, the method for processing the line parameter information further includes: if the area where the target transmission line is located includes K types of soil, measuring the soil resistivity of the area corresponding to each soil type to obtain K types of soil resistivity, where K is an integer greater than 1; and integrating the K types of soil resistivity into a target soil resistivity based on the area corresponding to each soil type and the distribution of the K types of soil in the area where the target transmission line is located, wherein the line operating environment parameters include at least the target soil resistivity.

[0016] Optionally, based on the area corresponding to each soil type and the distribution of the K soil types in the area where the target transmission line is located, the resistivity of the K soil types is integrated into the target soil resistivity. This includes: determining the sensitivity of each soil type to electromagnetic interference based on the area corresponding to each soil type and the distribution of the K soil types, wherein the distribution of the K soil types includes the continuity of the distribution of the K soil types and the relative positional relationship of each soil type to the target transmission line; determining the resistivity weight corresponding to each soil type based on the sensitivity of each soil type to electromagnetic interference and the distribution density of each soil type in a preset area around the target transmission line; and calculating the target soil resistivity by weighted averaging of the K soil resistivity based on the resistivity weight corresponding to each soil type.

[0017] Optionally, the sensitivity of each soil type to electromagnetic interference is positively correlated with the resistivity weight corresponding to that soil type, and the distribution density of each soil type in a preset area around the target transmission line is positively correlated with the resistivity weight corresponding to that soil type.

[0018] According to another aspect of the embodiments of this application, a line parameter information processing apparatus is also provided, comprising: an acquisition unit, configured to acquire construction information of the target transmission line after receiving an evaluation request for the target transmission line, wherein the construction information includes at least the topology information of the target transmission line, the geographical information of the line layout area, and the line construction time; a first determination unit, configured to determine the target weight of each of N line parameters based on the construction information, wherein the N line parameters include at least the conductor parameters, line geometric layout parameters, line operating environment parameters, line aging parameters, and ground wire configuration parameters of the target transmission line; a selection unit, configured to select M target line parameters from the N line parameters based on the target weight of each line parameter, wherein M is an integer greater than 1 and less than N; and a second determination unit, configured to determine the electrical evaluation result of the target transmission line based on the M target line parameters and the target weight corresponding to each target line parameter, wherein the electrical evaluation result is used to verify the operating status of the target transmission line.

[0019] According to another aspect of the embodiments of this application, a computer-readable storage medium is also provided, which stores a computer program, wherein when the computer program is executed, the device where the computer-readable storage medium is located performs the above-described method for processing line parameter information.

[0020] According to another aspect of the embodiments of this application, an electronic device is also provided, including one or more processors and a memory, wherein the memory is used to store one or more programs, wherein when the one or more programs are executed by one or more processors, the one or more processors cause the one or more processors to perform the above-described method for processing line parameter information.

[0021] According to another aspect of the embodiments of this application, a computer program product is also provided, including a computer program or instructions, which, when executed by a processor, implement the above-described method for processing line parameter information.

[0022] In this application, after receiving an assessment request for a target transmission line, the power assessment system obtains the construction information of the target transmission line, which includes at least the topology information, geographical information of the line's location, and the construction time. Then, based on the construction information, it determines the target weight for each of N line parameters, where the N line parameters include at least the conductor parameters, geometric layout parameters, operating environment parameters, aging parameters, and ground wire configuration parameters. Next, based on the target weight of each line parameter, it selects M target line parameters from the N line parameters, where M is an integer greater than 1 and less than N. Finally, based on the M target line parameters and their corresponding target weights, it determines the electrical assessment result of the target transmission line, which is used to verify the operational status of the target transmission line.

[0023] As described above, upon receiving an assessment request for a target transmission line, the power assessment system first obtains the line's construction information, including topology, geographical information of the line's location, and construction time. This construction information provides comprehensive foundational data for subsequent assessments. Based on this information, the system determines the target weight for each of the N line parameters. These N parameters can encompass conductor parameters, line geometry, operating environment parameters, aging parameters, and ground wire configuration parameters, enabling the system to comprehensively consider the impact of various factors on the line's electrical performance. Next, based on the target weights, the system selects M target line parameters from the N parameters. These M parameters have a significant impact on the assessment results. Finally, based on the M target line parameters and the target weights corresponding to each target line parameter, the electrical assessment results of the target transmission line are determined to verify the line's operating status. This can more accurately reflect the actual operating status of the transmission line, improving not only the accuracy of the assessment but also its efficiency. This solves the technical problem of low efficiency in assessing the operating status of transmission lines in complex and ever-changing transmission environments, where the inability to effectively select key parameters affecting the electrical assessment results leads to poor performance. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0025] Figure 1 This is a schematic diagram of an optional method for processing line parameter information according to an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of an optional line parameter information processing device according to an embodiment of this application. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] According to an embodiment of this application, a method embodiment for processing line parameter information is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0030] According to the embodiments of this application, a power assessment system can be used as the execution subject of the line parameter information processing method of this application embodiment. The system can be a software system or an embedded system combining software and hardware. Of course, the execution subject of the method in the embodiments of this application can also be other forms of execution subject, such as devices, equipment, etc. It should be known by those skilled in the art that this application does not particularly limit the specific form of the execution subject of the method.

[0031] Figure 1 This is a method for processing line parameter information according to an embodiment of this application, such as... Figure 1 As shown, the method includes the following steps:

[0032] Step S101: After receiving the evaluation request for the target transmission line, obtain the construction information of the target transmission line, wherein the construction information includes at least the topology information of the target transmission line, the geographical information of the line layout area, and the line construction time.

[0033] Optionally, topology information can refer to the connection method and layout of the target transmission line, including the line's starting point, ending point, branch points, connection sequence, and relative positional relationships between each segment. Topology information helps the power assessment system comprehensively understand the overall structure of the line, providing a basis for subsequent parameter weight allocation and key parameter selection. Geographical information of the line's location can encompass natural geographical elements such as topography, landforms, geological conditions, and climate characteristics, as well as surrounding environmental conditions, such as the presence of industrial interference sources or densely populated areas. This geographical information, including topography, landforms, and climate, can be used to determine the ambient temperature of the line, facilitating the analysis of the impact on line operating environment parameters. For example, soil resistivity under different geological conditions directly affects the line's grounding performance and zero-sequence impedance. The line construction time records the year the transmission line was built and the specific time it was put into operation, which can be used to estimate the line's operating time and thus assess its aging degree, providing a time reference for adjusting the weights of line aging parameters.

[0034] This application embodiment achieves accurate assessment of the operational status of transmission lines by acquiring their construction information, including topology information, geographical information of the line's location, and construction time. Specifically, topology information allows the power assessment system to accurately grasp the line's connection layout, enabling targeted analysis of the electrical characteristics of each section and providing an accurate line architecture foundation for subsequent selection of key parameters. Geographical information of the line's location helps the power assessment system gain a deeper understanding of the natural environment and surrounding conditions, thereby accurately assessing the impact of environmental factors on the line's electrical parameters, such as the effect of soil resistivity on zero-sequence impedance, thus improving the accuracy of the assessment results. Records of the line's construction time provide a temporal basis for assessing line aging parameters, allowing the system to reasonably adjust the weights of these parameters based on operating time, further enhancing the reliability of the assessment results. The comprehensive use of the target transmission line's construction information helps reduce inefficiencies caused by the inability to effectively select key parameters, improving the efficiency and accuracy of transmission line operational status assessment.

[0035] Step S102: Determine the target weight of each of the N line parameters based on the construction information. The N line parameters include at least the conductor parameters, line geometric layout parameters, line operating environment parameters, line aging parameters, and ground wire configuration parameters of the target transmission line.

[0036] Optionally, N line parameters can refer to the set of all line parameters to be evaluated in the power assessment system that have a significant impact on the assessment of the operating status of transmission lines. These parameters can cover various characteristic parameters of transmission lines, such as conductor parameters, geometric layout parameters, operating environment parameters, aging parameters, and ground wire configuration parameters.

[0037] Optionally, the conductor parameters of the target transmission line may involve the conductor's material properties, cross-sectional area, length, temperature coefficient, etc., which can directly affect the line's electrical performance such as resistance and reactance. Line geometric layout parameters may include the conductor arrangement, phase-to-phase distance, and height above ground, which can affect the electric and magnetic field distribution of the line, thus influencing electrical parameters. Line operating environment parameters refer to external environmental factors that affect the electrical performance of the transmission line; these parameters have a significant impact on the line's operating status. Line operating environment parameters may cover ambient temperature, system frequency, soil resistivity, etc., reflecting the external environmental conditions of the line's operation and affecting its electrical performance. Line aging parameters are indicators measuring the degree of degradation of the transmission line over time, including the decline in the mechanical properties of the conductors, the aging of insulation materials, and the degree of corrosion. Line aging parameters may be related to the line's operating time and the degree of material aging, reflecting the performance degradation of the line over time. Ground wire configuration parameters may include the type, quantity, and installation method of the ground wire, which can affect the line's grounding performance and zero-sequence impedance.

[0038] Optionally, the target weight for each line parameter can be quantified based on the specific construction information of the line, assigning values ​​to the importance of the N line parameters in evaluating the operational status of the transmission line. By analyzing factors such as the line's topology, geographical environment, and construction time, the importance of each parameter is dynamically adjusted to determine its weight in the evaluation.

[0039] This application's embodiments determine the target weight of each of the N line parameters based on construction information, achieving accuracy and efficiency in assessing the operational status of transmission lines. This allows the power assessment system to dynamically adjust the importance of each parameter according to the specific conditions of different lines, thus more accurately reflecting the actual operational status of the lines. For example, for lines in complex geological conditions, environmental parameters such as soil resistivity may have higher weights; while for lines with longer operating times, the weight of aging parameters will increase accordingly. Dynamically adjusting weights helps reduce inefficiencies caused by the inability to effectively select key parameters. By rationally allocating the weights of each parameter, the power assessment system can more accurately identify key factors affecting the operational status of lines, thereby improving the reliability and accuracy of the assessment results and facilitating the maintenance and management of transmission lines.

[0040] Step S103: Based on the target weight of each line parameter, select M target line parameters from N line parameters, where M is an integer greater than 1 and less than N.

[0041] Optionally, the M target line parameters can be key parameters selected from all N line parameters, which have an impact on the evaluation results. M is an integer greater than 1 and less than N, indicating that the number of parameters after selection is less than the total number of original parameters, but sufficient to represent the main characteristics of the line. The selection process helps to remove parameters with less impact on the evaluation results and retain key parameters with greater impact on the evaluation results, thereby improving the efficiency and accuracy of the evaluation.

[0042] This application's embodiments select M target line parameters from N line parameters based on the target weight of each line parameter, thereby improving the efficiency and accuracy of transmission line operation status assessment. Through weighted screening, the power assessment system can focus on the key parameters that have the greatest impact on the assessment results, thus reducing computational complexity and data processing volume. For example, in certain specific geographical environments, soil resistivity may have a significant impact on the zero-sequence impedance of a line, and therefore will be assigned a higher weight and selected as a target line parameter; while other parameters with less influence can be appropriately ignored. This screening not only improves the efficiency of the assessment but also enhances the reliability of the assessment results, allowing the assessment process to focus more on truly important factors. By reducing the participation of unnecessary parameters in the assessment, assessment bias caused by the accumulation of parameter errors can also be reduced, further improving the accuracy of the assessment.

[0043] Step S104: Based on the M target line parameters and the target weight corresponding to each target line parameter, determine the electrical evaluation result of the target transmission line, wherein the electrical evaluation result is used to verify the operating status of the target transmission line.

[0044] Optionally, the electrical assessment results can be calculated by comprehensively considering M target line parameters and the target weights corresponding to each target line parameter. This is used to verify whether the target transmission line is operating normally, and may include aspects such as the line's electrical performance, safety, and reliability. The electrical assessment results provide important information for line maintenance and management, helping to identify potential problems in a timely manner and take corresponding measures.

[0045] This application's embodiments determine the electrical assessment results by comprehensively considering M target line parameters and their corresponding target weights. This facilitates efficient and accurate assessment of the transmission line's operating status, ensuring the scientific rigor and accuracy of the assessment process. It allows for a focus on key parameters that significantly impact the operating status, avoiding errors and computational complexity caused by excessive irrelevant parameters. For example, under specific geological conditions and operating environments, soil resistivity and ground wire configuration parameters may significantly affect zero-sequence impedance. By rationally allocating weights and incorporating them into the assessment, the actual operating status of the line can be more accurately reflected. Furthermore, the electrical assessment results not only verify the current operating status of the line but also provide a scientific basis for future maintenance and upgrades, helping to identify potential problems early and take preventative measures. This improves the safety and reliability of the transmission line, enhances assessment efficiency, reduces assessment bias caused by parameter errors, and provides strong support for the long-term stable operation of the transmission line.

[0046] In one optional embodiment, the target weight of each of the N line parameters is determined based on the construction information, including: the power assessment system can first set an initial weight for each of the N line parameters, wherein the initial weights of the line operating environment parameters and the ground wire configuration parameters are greater than the initial weights of the conductor parameters, the line geometric layout parameters, and the line aging parameters, and then adjust the initial weights of each line parameter according to the construction information to obtain the target weight of each line parameter.

[0047] Optionally, the initial weight for each line parameter can refer to a pre-set basic importance coefficient for each line parameter before considering specific construction information. The initial weight can be set based on general conditions or experience, to initially reflect the relative importance of different parameters in the evaluation. For example, the initial weights of line operating environment parameters and ground wire configuration parameters can be set higher than the initial weights of conductor parameters, line geometry layout parameters, and line aging parameters, indicating that the operating environment and ground wire configuration may have a greater impact on the line electrical evaluation results. Setting the initial weights provides a starting point for subsequent adjustments based on specific construction information. The target weight, on the other hand, is the adjusted weight, which takes into account specific construction information, such as the line's topology, geographical information, and construction time, thereby more accurately reflecting the actual importance of each parameter under specific line conditions.

[0048] This embodiment of the application first sets initial weights and then adjusts these initial weights based on construction information. This facilitates dynamic optimization of line parameter weights, thereby improving the accuracy and adaptability of transmission line electrical assessments. Setting initial weights provides a foundation for the assessment, allowing the assessment process to begin from a reasonable starting point. Subsequently, adjusting the initial weights based on specific construction information enables the power assessment system to be customized according to the specific conditions of different lines, thus more accurately reflecting the importance of each parameter under specific conditions. For example, if a line is located in a complex geographical environment, the weight of its line operating environment parameters can be further increased to more accurately assess the line's electrical performance. This dynamic adjustment mechanism not only improves the accuracy of the assessment results but also enhances the flexibility and adaptability of the power assessment system, enabling it to better meet the assessment needs under different line conditions.

[0049] Optionally, the main factors affecting the electrical parameters of overhead lines include the inherent characteristics of the conductors, such as material, length, cross-sectional area, and radius. The resistivity of the material determines the basic resistance; length is directly proportional to resistance and reactance; cross-sectional area is inversely proportional to resistance; and radius affects reactance and capacitance. Regarding the structural layout of the line, the conductor arrangement, spacing, height above ground, and the presence of an overhead ground wire will alter mutual inductance, electric field distribution, and thus affect electrical parameters. Environmental factors such as soil resistivity and air humidity also have an effect; soil resistivity affects zero-sequence impedance, and humidity affects conductivity. Furthermore, the frequency and temperature in the system's operating conditions affect the resistance, reactance, and other electrical parameters of overhead lines by altering the skin effect and material resistivity.

[0050] In one optional embodiment, the line operating environment parameters include at least the ambient temperature, the power system frequency corresponding to the target transmission line, and the target soil resistivity of the area where the target transmission line is located, wherein the initial weight of the target soil resistivity is greater than the initial weight of the ambient temperature and the power system frequency.

[0051] Optionally, ambient temperature can affect conductor resistance and sag, thus affecting the electrical performance of the line. Power system frequency can affect the AC resistance, inductive reactance, and capacitive reactance of the line; for example, the power system frequency could be 50Hz. Target soil resistivity can affect the line's grounding performance and zero-sequence impedance, and can be used to evaluate the line's electrical parameters. The initial weight of the target soil resistivity is set higher than the initial weights of ambient temperature and power system frequency, indicating that soil resistivity has a greater impact on the line's electrical assessment results.

[0052] Optionally, environmental factors may primarily include temperature, power system frequency, and soil parameters. Temperature mainly affects resistance parameters. For power system frequency, which can be 50Hz, frequency is not a factor affecting line parameters. Soil parameters can significantly influence zero-sequence parameters; therefore, obtaining accurate soil resistivity parameters is crucial for reducing calculation errors.

[0053] This embodiment of the application sets the initial weight of the target soil resistivity higher than the initial weights of ambient temperature and power system frequency, thereby more accurately reflecting the impact of different environmental factors on the electrical performance of transmission lines. Soil resistivity has a significant impact on the grounding performance and zero-sequence impedance of lines, especially under complex geological conditions. Accurate soil resistivity parameters are crucial for evaluating the electrical performance of lines. Therefore, giving soil resistivity a higher initial weight facilitates the full consideration of soil resistivity during the evaluation process, thereby improving the accuracy and reliability of the evaluation results. This facilitates the scientific evaluation of the impact of different environmental factors, enabling the power evaluation system to better adapt to the line evaluation needs under different geographical and geological conditions, and facilitating the safe operation and maintenance of transmission lines.

[0054] In one optional embodiment, the initial weights of each line parameter are adjusted based on construction information to obtain the target weights of each line parameter. This includes: the power assessment system first determines the conductor type of the target transmission line based on its topology information, and then determines the ambient temperature of the target transmission line based on the geographical information of the line layout area. Next, it obtains the resistance variation of each type of conductor under the ambient temperature conditions of the target transmission line. Finally, it adjusts the initial weights of the conductor parameters based on the resistance variation to obtain the target weights of the conductor parameters. The adjustment range of the initial weights of the conductor parameters is positively correlated with the resistance variation.

[0055] Optionally, conductor type can refer to the type of conductor used in the circuit, such as steel-cored aluminum stranded wire, aluminum stranded wire, etc. Different types of conductors have different material properties and electrical performance. Resistance change range can refer to the degree of change in conductor resistance relative to standard temperature under specific ambient temperature conditions.

[0056] Optionally, the initial weights of the conductor parameters are adjusted according to the resistance change. The adjustment range is positively correlated with the resistance change; that is, the greater the resistance change, the greater the weight adjustment range.

[0057] This application embodiment determines the conductor type based on the topology information of the target transmission line and determines the ambient temperature by combining the geographical information of the line's location. This allows the power assessment system to more accurately evaluate the electrical performance of the conductor in the actual operating environment. The power assessment system first determines the conductor type and ambient temperature, then obtains the resistance change amplitude of the conductor at that ambient temperature. This enables the power assessment system to accurately reflect the resistance changes of the conductor under different environmental conditions. Furthermore, the initial weights of the conductor parameters are adjusted based on the resistance change amplitude to obtain more accurate target weights. This ensures the scientific validity and accuracy of the assessment results, fully considers the changes in the conductor's electrical performance in the actual operating environment, and allows the power assessment system to more effectively identify and evaluate the impact of conductor parameters on the line's operating status, thereby facilitating the safe operation and maintenance of the transmission line.

[0058] In one optional embodiment, the initial weights of each line parameter are adjusted according to the construction information to obtain the target weights of each line parameter. This includes: the power assessment system first determines the line complexity of the target transmission line based on the topology information of the target transmission line, wherein the line complexity is determined by the number of towers, the tower spacing, the ground wire support height, and the phase sequence of the target transmission line; then, the initial weights of the line geometric layout parameters are adjusted according to the line complexity to obtain the target weights of the line geometric layout parameters, wherein the adjustment range of the initial weights of the line geometric layout parameters is positively correlated with the line complexity.

[0059] Optionally, line complexity can be a comprehensive indicator used to quantify the structural complexity of transmission lines. It can be determined by multiple factors, including the number of towers, the spacing between tower layers, the height of the ground wire support, and the phase sequence. These factors together affect the electrical performance and operating status of the line.

[0060] Optionally, line geometric layout parameters can refer to the geometric structural parameters of the line, such as the conductor arrangement, phase spacing, and height above ground, which can affect the electric and magnetic field distribution of the line. Line geometric layout parameters mainly include dimensional information and phase sequence. Dimensional information includes factors such as crossarm length, inter-layer spacing, and ground wire support height. The dimensional information for overhead lines is taken from the dimensions of the most commonly used towers for that line, which can be Type 1 tension towers or Type 2 straight-line towers. To determine the impact of different tower sizes on the calculation results, multiple projects with different voltage levels and conductor types can be selected, and parameter calculations can be performed on the dimensions of all towers in the relevant projects.

[0061] This application embodiment determines the line complexity based on the topology information of the target transmission line and adjusts the initial weights of the line geometric layout parameters according to this complexity. This allows the power assessment system to more accurately reflect the impact of the line geometric layout parameters on electrical performance. Specifically, increased line complexity, such as a greater number of towers, larger tower spacing, or higher ground wire support height, implies more complex electrical performance. Therefore, the weights of the line geometric layout parameters need to be adjusted accordingly. This adjustment enables the power assessment system to more accurately evaluate the line's electrical performance, especially under complex line structures. By dynamically adjusting the initial weights of the line geometric layout parameters, the power assessment system can more effectively identify and evaluate the impact of these parameters on the line's operating status, thereby improving the reliability and accuracy of the assessment results and facilitating the safe operation and maintenance of transmission lines.

[0062] In one optional embodiment, the initial weights of each line parameter are adjusted according to the construction information to obtain the target weights of each line parameter. This includes: the power assessment system can determine the soil complexity of the area where the target transmission line is located based on the line operation environment parameters of the target transmission line. The soil complexity is determined by the number of soil types, the overlap between different types of soil, and the area of ​​each type of soil. Then, the initial weights of the line operation environment parameters are adjusted according to the soil complexity of the area where the target transmission line is located to obtain the target weights of the line operation environment parameters. The adjustment range of the initial weights of the line operation environment parameters is positively correlated with the soil complexity.

[0063] Alternatively, soil complexity can be a comprehensive indicator used to quantify the complexity of soil conditions in the area where the transmission line is located. Soil complexity is determined by multiple factors, including the number of soil types, the overlap between different types of soil, and the area of ​​each type of soil. These factors can collectively affect the electrical properties of the soil, and thus the grounding performance and zero-sequence impedance of the transmission line.

[0064] This application embodiment determines the soil complexity of the target transmission line's area based on its line operating environment parameters and adjusts the initial weights of these parameters accordingly. This allows the power assessment system to more accurately reflect the impact of soil conditions on the line's electrical performance. For example, increased soil complexity, such as more soil types, complex soil intersections, and varying soil distribution, can make the soil's electrical characteristics more complex. Therefore, it is necessary to adjust the weights of the line operating environment parameters accordingly. This adjustment enables the power assessment system to more accurately evaluate the line's electrical performance, particularly grounding performance and zero-sequence impedance under complex soil conditions. By dynamically adjusting the initial weights of the line operating environment parameters, this application embodiment allows the system to more effectively identify and assess the impact of soil conditions on the line's operating status, thereby improving the reliability and accuracy of the assessment results.

[0065] In one optional embodiment, the initial weight of each line parameter is adjusted according to the construction information to obtain the target weight of each line parameter. This includes: the power assessment system can determine the operating time of the target transmission line based on the line construction time, and then adjust the initial weight of the line aging parameter according to the operating time to obtain the target weight of the line aging parameter. The adjustment range of the initial weight of the line aging parameter is positively correlated with the operating time of the target transmission line.

[0066] Optionally, the operating time can be the total duration from the construction time of the target transmission line to the current assessment time, reflecting the service life of the target transmission line since its construction. The initial weight of the line aging parameters can refer to the basic importance coefficients pre-set for the line aging parameters before considering specific operating times. The target weight of the line aging parameters can be the weight adjusted after operating time, which can more accurately reflect the actual importance of the line aging parameters at a specific operating time. The adjustment range of the initial weight of the line aging parameters is positively correlated with the operating time of the target transmission line, meaning that the longer the line operates, the greater the increase in the weight of the line aging parameters, to reflect the cumulative effect of aging on line performance.

[0067] This application embodiment determines the operating time of the target transmission line based on its construction time and adjusts the initial weights of the line aging parameters accordingly. This allows the power assessment system to more accurately reflect the impact of line aging on electrical performance. For example, as the operating time increases, the aging of the line intensifies, leading to problems such as increased conductor resistance and decreased insulation performance, thereby affecting the safety and reliability of the line. Therefore, positively adjusting the weights of aging parameters based on the operating time enables the power assessment system to more accurately identify the potential impact of aging on line performance. Dynamically adjusting the initial weights of the line aging parameters not only improves the accuracy of the assessment results but also enhances the adaptability of the power assessment system, allowing it to perform personalized assessments based on the service life of different lines, facilitating the maintenance and upgrading of transmission lines.

[0068] In one optional embodiment, the initial weights of each line parameter are adjusted based on the construction information to obtain the target weights of each line parameter. This includes: the power assessment system first determines the number of ground wires, the material of the ground wires, the method of ground wire installation, and the relative position of the ground wires and the live wires based on the topology information of the target transmission line; then, it determines the zero-sequence impedance variation of the target transmission line based on the number of ground wires, the material of the ground wires, the method of ground wire installation, and the relative position of the ground wires and the live wires; finally, it adjusts the initial weights of the ground wire configuration parameters based on the zero-sequence impedance variation of the target transmission line to obtain the target weights of the ground wire configuration parameters. The adjustment range of the initial weights of the ground wire configuration parameters is positively correlated with the zero-sequence impedance variation of the target transmission line.

[0069] Optionally, the number of ground wires, their material, installation method, and the relative position of the ground wires to the live conductors can be specific parameters for ground wire configuration. These parameters collectively determine the impact of the ground wires on the electrical performance of the transmission line. The zero-sequence impedance variation can refer to the degree of change in the zero-sequence impedance of the transmission line due to different ground wire configurations. The initial weights of the ground wire configuration parameters can refer to the basic coefficients pre-set for the ground wire configuration parameters before considering specific zero-sequence impedance variations.

[0070] Optionally, the target weight of the grounding configuration parameters can be the weight adjusted after the change in zero-sequence impedance, more accurately reflecting the actual importance of the grounding configuration parameters under specific conditions. The grounding wire has a significant impact on zero-sequence impedance. Installing a grounding wire reduces zero-sequence impedance because its presence provides an additional path for zero-sequence current, increasing the current flow area and acting as a parallel connection with the earth, thereby reducing zero-sequence reactance and consequently reducing zero-sequence impedance. Furthermore, factors such as the material of the grounding wire, its installation method, and its relative position to the conductor also affect the degree of reduction in zero-sequence impedance. For example, using a good conductor as the grounding wire and optimizing the spacing between the grounding wire and the conductor can more effectively reduce zero-sequence impedance. The grounding configuration has a significant impact on zero-sequence impedance; different types of grounding wires and whether or not the grounding wire is insulated will have a substantial effect on zero-sequence impedance. Grounding configuration is a major cause of calculation errors.

[0071] This application embodiment determines the specific parameters of the ground wire configuration based on the topology information of the target transmission line, and calculates the variation range of the zero-sequence impedance accordingly. This allows the power assessment system to more accurately adjust the weights of the ground wire configuration parameters. For example, the number, material, installation method, and relative position of the ground wire to the live conductor directly affect the zero-sequence impedance of the line, thereby influencing its electrical performance and fault characteristics. By positively adjusting the initial weights of the ground wire configuration parameters based on the variation range of the zero-sequence impedance, the power assessment system can more accurately reflect the actual impact of the ground wire configuration on line performance. Dynamically adjusting the weights of the ground wire configuration parameters not only improves the accuracy of the assessment results but also enhances the adaptability of the power assessment system, enabling it to perform personalized assessments based on the ground wire configurations of different lines.

[0072] In one optional embodiment, selecting M target line parameters from N line parameters based on the target weight of each line parameter includes: sorting the N line parameters according to the target weight of each line parameter, and selecting the M line parameters with the largest target weight from the N line parameters as the M target line parameters according to the sorting result.

[0073] Optionally, the target weight of each line parameter refers to the importance coefficient of each line parameter in the evaluation process after comprehensive consideration of various factors such as line construction time, geographical information, and operating environment. It can reflect the actual impact of different parameters on the evaluation of the operation status of transmission lines.

[0074] Alternatively, sorting can refer to the process of prioritizing all line parameters according to the target weight of each line parameter, and the sorting results are used to determine which parameters are the key factors affecting the evaluation results.

[0075] This application embodiment sorts N line parameters according to the target weight of each line parameter and selects the M line parameters with the largest target weight as target line parameters. The power assessment system can effectively identify and focus on the key parameters that have the greatest impact on the assessment of the operation status of transmission lines, making the assessment process more efficient and accurate. It avoids complex calculations on a large number of parameters and instead concentrates resources on assessing the more important parameters.

[0076] For example, in some cases, soil resistivity and ground wire configuration may have a significant impact on the zero-sequence impedance of a line, while the influence of other parameters is relatively small. By sorting and selecting key parameters, the power assessment system can more accurately reflect the actual operating status of the line, thereby improving the reliability of the assessment results, reducing computational complexity and data processing volume, and improving assessment efficiency.

[0077] In an optional embodiment, before determining the target weight of each of the N line parameters based on the construction information, the method for processing the line parameter information further includes: If the power assessment system detects that the area where the target transmission line is located includes K types of soil, it measures the soil resistivity of the area corresponding to each soil type to obtain K types of soil resistivity, where K is an integer greater than 1. Then, based on the area corresponding to each soil type and the distribution of the K types of soil in the area where the target transmission line is located, the K types of soil resistivity are integrated into a target soil resistivity, wherein the line operating environment parameters include at least the target soil resistivity.

[0078] Optionally, the K soil types can refer to different types of soil present in the area where the target transmission line is located. Each soil type has different physical and chemical properties, resulting in different soil resistivity. Soil resistivity refers to the degree to which soil impedes current flow and is a key factor affecting the grounding performance and zero-sequence impedance of transmission lines. The power assessment system obtains K different soil resistivity values ​​by measuring the soil resistivity of the area corresponding to each soil type. The K soil resistivity values ​​need to be integrated based on the area corresponding to each soil type and the distribution of soil in the area where the target transmission line is located, ultimately yielding a comprehensive target soil resistivity. The target soil resistivity can be an important component of the line's operating environment parameters, used to evaluate the electrical performance of the transmission line.

[0079] For example, plains areas are mainly composed of clay and silty clay, with low soil resistivity ranging from 100 Ω·m to 250 Ω·m, and dropping below 50 Ω·m in humid seasons. Urban areas, due to the influence of construction backfill and concrete, exhibit significantly different soil resistivity, generally ranging from 100 Ω·m to 500 Ω·m, with some areas potentially having higher resistivity due to dense underground pipelines. Mountainous and hilly areas contain gravel or weathered rock, resulting in higher resistivity, ranging from 500 Ω·m to 1200 Ω·m, and exceeding 1500 Ω·m in some areas with exposed rock. Considering the location and topography of the newly constructed overhead lines, a soil resistivity of 300 Ω·m can be used for typical flat areas, and 1000 Ω·m for typical mountainous areas. A 220kV double-circuit line can be selected, using 4-split steel-cored aluminum stranded wire for the conductor and aluminum-clad steel stranded wire for the ground wire, with a typical soil resistivity of 300 Ω·m for plains terrain.

[0080] This application embodiment measures and integrates the soil resistivity of K soil types within the area where the target transmission line is located. This allows the power assessment system to more accurately reflect the impact of actual soil electrical characteristics on the transmission line's operating status. The resistivity differences between different soil types and their distribution within the area directly affect the grounding performance and zero-sequence impedance of the transmission line. The integrated target soil resistivity provides a more comprehensive and accurate description of the soil's electrical characteristics, enabling the power assessment system to more precisely evaluate the electrical performance of the transmission line, especially its grounding performance under complex geological conditions. This not only improves the accuracy of the assessment results but also enhances the adaptability of the power assessment system, allowing it to perform personalized assessments based on soil conditions in different regions.

[0081] In one optional embodiment, the K soil resistivity types are integrated into a target soil resistivity based on the area corresponding to each soil type and the distribution of the K soil types in the area where the target transmission line is located. This includes: the power assessment system can determine the sensitivity of each soil type to electromagnetic interference based on the area corresponding to each soil type and the distribution of the K soil types, wherein the distribution of the K soil types includes the continuity of the distribution of the K soil types and the relative positional relationship of each soil type to the target transmission line; then, based on the sensitivity of each soil type to electromagnetic interference and the distribution density of each soil type in a preset area around the target transmission line, the resistivity weight corresponding to each soil type is determined; finally, based on the resistivity weight corresponding to each soil type, the K soil resistivity types are weighted and averaged to obtain the target soil resistivity.

[0082] Optionally, the area corresponding to each soil type can refer to the specific distribution area of ​​different soil types within the region where the target transmission line is located, which helps to quantify the impact of each soil type on the overall electrical characteristics. The distribution of the K soil types can include the continuity of soil type distribution and the relative positional relationship between each soil type and the transmission line. The continuity of the K soil types distribution can refer to the degree of continuous spatial distribution of soil types, while the relative positional relationship between each soil type and the target transmission line can refer to the spatial positional relationship between the soil and the transmission line, such as whether the soil is close to the line or located in a specific direction of the line.

[0083] Optionally, the sensitivity to electromagnetic interference can refer to the degree of soil response to changes in electromagnetic fields. Soil types with high sensitivity will exhibit more significant changes in electrical properties when electromagnetic fields change. The resistivity weight can be determined based on the soil type's sensitivity to electromagnetic interference and its distribution density within a preset area, reflecting the importance of each soil type when calculating the target soil resistivity. The weighted average calculation can refer to calculating a weighted average of the resistivity of all soil types based on their respective resistivity weights to obtain a comprehensive target soil resistivity.

[0084] This application's embodiments determine the soil's sensitivity to electromagnetic interference (EMI) based on the area and distribution of each soil type, and accordingly determine the resistivity weight for each soil type. This allows the power assessment system to calculate the target soil resistivity more accurately. For example, the continuity of the distribution of K soil types and the relative position of each soil type to the target transmission line directly affect its response to EMI. Soil types with high sensitivity will exhibit more significant changes in electrical characteristics when the electromagnetic field changes. By assigning corresponding resistivity weights to each soil type and performing weighted average calculations, the system can more comprehensively reflect the combined impact of different soil types on the electrical performance of transmission lines. This not only improves the accuracy of the target soil resistivity calculation but also enhances the adaptability of the power assessment system, enabling it to conduct personalized assessments based on soil distribution and electromagnetic environment in different regions, which is beneficial for the safe operation and maintenance of transmission lines.

[0085] In one optional embodiment, the sensitivity of each soil type to electromagnetic interference is positively correlated with the resistivity weight corresponding to that soil type, and the distribution density of each soil type in a preset area around the target transmission line is positively correlated with the resistivity weight corresponding to that soil type.

[0086] Optionally, the distribution density of each soil type within a predetermined area surrounding the target transmission line can refer to the amount of soil per unit area within that predetermined area. For example, soil types with higher distribution densities occupy a larger proportion within the predetermined area and have a greater impact on the local electrical characteristics of the transmission line.

[0087] Optionally, there is a positive correlation between the sensitivity of each soil type to electromagnetic interference and the corresponding resistivity weight; soil types with higher sensitivity to electromagnetic interference are assigned higher weights. For example, some soil types may be more sensitive to changes in electromagnetic fields, and their resistivity changes significantly under electromagnetic interference. Therefore, when calculating the target soil resistivity, soil types with higher sensitivity will be assigned higher weights to more accurately reflect their impact on the electrical performance of transmission lines. This facilitates the power assessment system in more accurately identifying and handling soil types sensitive to electromagnetic interference, thereby improving the accuracy of the assessment results.

[0088] Optionally, there is also a positive correlation between the distribution density of each soil type within a pre-defined area surrounding the target transmission line and the resistivity weight corresponding to that soil type. Soil types with higher distribution densities occupy a larger proportion within the pre-defined area and have a greater impact on the local electrical characteristics of the transmission line. Therefore, this soil type can be assigned a higher weight. For example, if a certain soil type is more densely distributed within the pre-defined area surrounding the transmission line, its impact on the line grounding performance and zero-sequence impedance will be more significant. By assigning a higher weight, the power assessment system can more accurately reflect this local impact, thereby improving the reliability of the assessment results.

[0089] This application embodiment establishes two positive correlations: one between the sensitivity of each soil type to electromagnetic interference and the corresponding resistivity weight, and the other between the distribution density of each soil type within a preset area surrounding the target transmission line and the corresponding resistivity weight. This allows the power assessment system to calculate the target soil resistivity more comprehensively and accurately. By comprehensively considering both the sensitivity of soil types to electromagnetic interference and their distribution density, the system not only improves the accuracy of the assessment results but also enhances the adaptability of the power assessment system. It can dynamically adjust the weights according to the soil characteristics and distribution in different regions, which is beneficial for the safe operation and maintenance of transmission lines.

[0090] See Figure 2 According to another aspect of the embodiments of this application, a processing device for line parameter information is also provided, including: an acquisition unit 201, a first determination unit 202, a selection unit 203, and a second determination unit 204.

[0091] The system includes: an acquisition unit 201, which acquires construction information of the target transmission line after receiving an evaluation request for the target transmission line, including at least the topology information, geographical information of the line layout area, and the line construction time; a first determination unit 202, which determines the target weight of each of N line parameters based on the construction information, including at least the conductor parameters, geometric layout parameters, operating environment parameters, aging parameters, and ground wire configuration parameters of the target transmission line; a selection unit 203, which selects M target line parameters from the N line parameters based on the target weight of each line parameter, where M is an integer greater than 1 and less than N; and a second determination unit 204, which determines the electrical evaluation result of the target transmission line based on the M target line parameters and the target weight corresponding to each target line parameter, wherein the electrical evaluation result is used to verify the operating status of the target transmission line.

[0092] Optionally, the first determining unit 202 includes: an initial weight setting subunit, used to set an initial weight for each of the N line parameters, wherein the initial weights of the line operating environment parameters and the ground wire configuration parameters are greater than the initial weights of the conductor parameters, the line geometric layout parameters, and the line aging parameters; and a target weight determining subunit, used to adjust the initial weights of each line parameter according to the construction information to obtain the target weights of each line parameter.

[0093] Optionally, the target weight determination subunit includes: a conductor type determination module, used to determine the conductor type of the target transmission line based on the topology information of the target transmission line; an ambient temperature determination module, used to determine the ambient temperature of the target transmission line based on the geographical information of the line layout area; a resistance change amplitude determination module, used to obtain the resistance change amplitude of each type of conductor in the target transmission line under the ambient temperature conditions of the target transmission line; and a conductor parameter weight determination module, used to adjust the initial weight of the conductor parameters according to the resistance change amplitude to obtain the target weight of the conductor parameters, wherein the adjustment amplitude of the initial weight of the conductor parameters is positively correlated with the resistance change amplitude.

[0094] Optionally, the target weight determination subunit includes: a line complexity determination module, used to determine the line complexity of the target transmission line based on the topology information of the target transmission line, wherein the line complexity is determined by the number of towers, the tower spacing, the ground wire support height, and the phase sequence of the target transmission line; and a line layout weight determination module, used to adjust the initial weights of the line geometric layout parameters based on the line complexity to obtain the target weights of the line geometric layout parameters, wherein the adjustment range of the initial weights of the line geometric layout parameters is positively correlated with the line complexity.

[0095] Optionally, the target weight determination subunit includes: a soil complexity determination module, used to determine the soil complexity of the area where the target transmission line is located based on the line operation environment parameters of the target transmission line, wherein the soil complexity is determined by the number of soil types, the overlap of different types of soil, and the area of ​​each type of soil; and an environmental parameter weight determination module, used to adjust the initial weights of the line operation environment parameters based on the soil complexity of the area where the target transmission line is located, to obtain the target weights of the line operation environment parameters, wherein the adjustment range of the initial weights of the line operation environment parameters is positively correlated with the soil complexity.

[0096] Optionally, the target weight determination subunit includes: a runtime determination module, used to determine the runtime of the target transmission line based on the line construction time of the target transmission line; and an aging parameter weight determination module, used to adjust the initial weights of the line aging parameters based on the runtime to obtain the target weights of the line aging parameters, wherein the adjustment range of the initial weights of the line aging parameters is positively correlated with the runtime of the target transmission line.

[0097] Optionally, the target weight determination subunit includes: a ground wire parameter determination module, used to determine the number of ground wires, ground wire material, ground wire installation method, and relative position of ground wires and live wires based on the topology information of the target transmission line; a variation amplitude determination module, used to determine the zero-sequence impedance variation amplitude of the target transmission line based on the number of ground wires, ground wire material, ground wire installation method, and relative position of ground wires and live wires; and a ground wire parameter weight determination module, used to adjust the initial weight of the ground wire configuration parameters based on the zero-sequence impedance variation amplitude of the target transmission line to obtain the target weight of the ground wire configuration parameters, wherein the adjustment amplitude of the initial weight of the ground wire configuration parameters is positively correlated with the zero-sequence impedance variation amplitude of the target transmission line.

[0098] Optionally, the selection unit 203 includes: a sorting subunit for sorting N line parameters according to the target weight of each line parameter; and a selection subunit for selecting the M line parameters with the largest target weight from the N line parameters as the M target line parameters according to the sorting result.

[0099] Optionally, the line parameter information processing device further includes: a soil resistivity determination unit, used to measure the soil resistivity of the area corresponding to each soil type when it is detected that the area where the target transmission line is located includes K types of soil, to obtain K types of soil resistivity, where K is an integer greater than 1; and a target soil resistivity determination unit, used to integrate the K types of soil resistivity into a target soil resistivity based on the area corresponding to each soil type and the distribution of the K types of soil in the area where the target transmission line is located, wherein the line operating environment parameters include at least the target soil resistivity.

[0100] Optionally, the target soil resistivity determination unit includes: a sensitivity determination subunit, used to determine the sensitivity of each soil type to electromagnetic interference based on the area corresponding to each soil type and the distribution of K soil types, wherein the distribution of K soil types includes the continuity of the distribution of K soil types and the relative positional relationship between each soil type and the target transmission line; a resistivity weight determination subunit, used to determine the resistivity weight corresponding to each soil type based on the sensitivity of each soil type to electromagnetic interference and the distribution density of each soil type in a preset area around the target transmission line; and a target soil resistivity determination subunit, used to calculate the target soil resistivity by performing a weighted average calculation of the K soil resistivity based on the resistivity weight corresponding to each soil type.

[0101] According to another aspect of the embodiments of this application, a computer-readable storage medium is also provided, which stores a computer program, wherein when the computer program is executed, the device where the computer-readable storage medium is located performs the above-described method for processing line parameter information.

[0102] According to another aspect of the embodiments of this application, an electronic device is also provided, including one or more processors and a memory, wherein the memory is used to store one or more programs, wherein when the one or more programs are executed by one or more processors, the one or more processors cause the one or more processors to perform the above-described method for processing line parameter information.

[0103] According to another aspect of the embodiments of this application, a computer program product is also provided, including a computer program or instructions, which, when executed by a processor, implement the above-described method for processing line parameter information.

[0104] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0105] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0106] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0107] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0108] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0109] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.

[0110] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A method for processing line parameter information, characterized in that, include: Upon receiving an evaluation request for a target transmission line, the construction information of the target transmission line is obtained, wherein the construction information includes at least the topology information of the target transmission line, the geographical information of the line layout area, and the line construction time. The target weight of each of the N line parameters is determined based on the construction information, wherein the N line parameters include at least the conductor parameters, line geometric layout parameters, line operating environment parameters, line aging parameters, and ground wire configuration parameters of the target transmission line. Based on the target weight of each line parameter, select M target line parameters from the N line parameters, where M is an integer greater than 1 and less than N; Based on the M target line parameters and the target weight corresponding to each target line parameter, the electrical evaluation result of the target transmission line is determined, wherein the electrical evaluation result is used to verify the operating status of the target transmission line; The process of determining the target weight of each of the N line parameters based on the construction information includes: setting an initial weight for each of the N line parameters, wherein the initial weights of the line operating environment parameter and the ground wire configuration parameter are greater than the initial weights of the conductor parameter, the line geometric layout parameter, and the line aging parameter; and adjusting the initial weights of each line parameter based on the construction information to obtain the target weight of each line parameter. Specifically, the initial weights of the conductor parameters are adjusted based on the resistance variation of each type of conductor in the target transmission line under the ambient temperature conditions, resulting in target weights for the conductor parameters; the initial weights of the line geometry layout parameters are adjusted based on the line complexity of the target transmission line, resulting in target weights for the line geometry layout parameters; the initial weights of the line operating environment parameters are adjusted based on the soil complexity of the area where the target transmission line is located, resulting in target weights for the line operating environment parameters; the initial weights of the line aging parameters are adjusted based on the operating time of the target transmission line, resulting in target weights for the line aging parameters; and the initial weights of the ground wire configuration parameters are adjusted based on the zero-sequence impedance variation of the target transmission line, resulting in target weights for the ground wire configuration parameters.

2. The method for processing line parameter information according to claim 1, characterized in that, The line operating environment parameters include at least the ambient temperature, the power system frequency corresponding to the target transmission line, and the target soil resistivity of the area where the target transmission line is located, wherein the initial weight of the target soil resistivity is greater than the initial weight of the ambient temperature and the power system frequency.

3. The method for processing line parameter information according to claim 1, characterized in that, The initial weights of each line parameter are adjusted based on the construction information to obtain the target weights of each line parameter, including: The conductor type of the target transmission line is determined based on the topology information of the target transmission line; The ambient temperature of the target transmission line is determined based on the geographical information of the area where the target transmission line is located. Obtain the resistance variation of each type of conductor in the target transmission line under the ambient temperature conditions of the target transmission line; The initial weights of the conductor parameters are adjusted based on the resistance change amplitude to obtain the target weights of the conductor parameters, wherein the adjustment amplitude of the initial weights of the conductor parameters is positively correlated with the resistance change amplitude.

4. The method for processing line parameter information according to claim 1, characterized in that, The initial weights of each line parameter are adjusted based on the construction information to obtain the target weights of each line parameter, including: The line complexity of the target transmission line is determined based on the topology information of the target transmission line, wherein the line complexity is determined by the number of towers, the tower spacing, the ground wire support height, and the phase sequence of the target transmission line. The initial weights of the line geometry layout parameters are adjusted according to the line complexity to obtain the target weights of the line geometry layout parameters, wherein the adjustment range of the initial weights of the line geometry layout parameters is positively correlated with the line complexity.

5. The method for processing line parameter information according to claim 1, characterized in that, The initial weights of each line parameter are adjusted based on the construction information to obtain the target weights of each line parameter, including: The soil complexity of the area where the target transmission line is located is determined based on the line operation environment parameters of the target transmission line. The soil complexity is determined by the number of soil types, the overlap between different types of soil, and the area of ​​each type of soil. The initial weights of the line operating environment parameters are adjusted based on the soil complexity of the area where the target transmission line is located to obtain the target weights of the line operating environment parameters. The adjustment range of the initial weights of the line operating environment parameters is positively correlated with the soil complexity.

6. The method for processing line parameter information according to claim 1, characterized in that, The initial weights of each line parameter are adjusted based on the construction information to obtain the target weights of each line parameter, including: The operating time of the target transmission line is determined based on the construction time of the target transmission line; The initial weights of the line aging parameters are adjusted based on the operating time to obtain the target weights of the line aging parameters, wherein the adjustment range of the initial weights of the line aging parameters is positively correlated with the operating time of the target transmission line.

7. The method for processing line parameter information according to claim 1, characterized in that, The initial weights of each line parameter are adjusted based on the construction information to obtain the target weights of each line parameter, including: The number of ground wires, the material of the ground wires, the method of erecting the ground wires, and the relative positions of the ground wires and the live wires are determined based on the topology information of the target transmission line. The zero-sequence impedance variation of the target transmission line is determined based on the number of ground wires, the material of the ground wires, the method of ground wire installation, and the relative position of the ground wires and the live wires. The initial weights of the ground wire configuration parameters are adjusted based on the zero-sequence impedance change amplitude of the target transmission line to obtain the target weights of the ground wire configuration parameters. The adjustment amplitude of the initial weights of the ground wire configuration parameters is positively correlated with the zero-sequence impedance change amplitude of the target transmission line.

8. The method for processing line parameter information according to claim 1, characterized in that, Based on the target weight of each line parameter, select M target line parameters from the N line parameters, including: The N line parameters are sorted according to the target weight of each line parameter, and the M line parameters with the largest target weights are selected from the N line parameters as the M target line parameters based on the sorting results.

9. The method for processing line parameter information according to claim 1, characterized in that, Before determining the target weight of each of the N line parameters based on the construction information, the method for processing the line parameter information further includes: If the area where the target transmission line is located is detected to include K types of soil, the soil resistivity of the area corresponding to each soil type is measured to obtain K types of soil resistivity, where K is an integer greater than 1. Based on the area corresponding to each soil type and the distribution of the K soil types in the area where the target transmission line is located, the K soil resistivity is integrated into a target soil resistivity, wherein the line operating environment parameters include at least the target soil resistivity.

10. The method for processing line parameter information according to claim 9, characterized in that, Based on the area corresponding to each soil type and the distribution of the K soil types in the area where the target transmission line is located, the K soil resistivity is integrated into the target soil resistivity, including: The sensitivity of each soil type to electromagnetic interference is determined based on the area corresponding to each soil type and the distribution of the K soil types. The distribution of the K soil types includes the continuity of the distribution of the K soil types and the relative positional relationship between each soil type and the target transmission line. Based on the sensitivity of each soil type to electromagnetic interference and the distribution density of each soil type in a preset area around the target transmission line, the resistivity weight corresponding to each soil type is determined. Based on the resistivity weight corresponding to each soil type, the resistivity of the K types of soils is calculated by weighted average to obtain the target soil resistivity.

11. The method for processing line parameter information according to claim 10, characterized in that, The sensitivity of each soil type to electromagnetic interference is positively correlated with the resistivity weight corresponding to that soil type, and the distribution density of each soil type in the preset area around the target transmission line is positively correlated with the resistivity weight corresponding to that soil type.

12. A processing apparatus for line parameter information, used to implement the processing method for line parameter information according to any one of claims 1 to 11, characterized in that, include: The acquisition unit is configured to acquire the construction information of the target transmission line after receiving an evaluation request for the target transmission line, wherein the construction information includes at least the topology information of the target transmission line, the geographical information of the line layout area, and the line construction time. The first determining unit is used to determine the target weight of each of the N line parameters based on the construction information, wherein the N line parameters include at least the conductor parameters, line geometric layout parameters, line operating environment parameters, line aging parameters, and ground wire configuration parameters of the target transmission line. The selection unit is used to select M target line parameters from the N line parameters according to the target weight of each line parameter, where M is an integer greater than 1 and less than N; The second determining unit is used to determine the electrical evaluation result of the target transmission line based on the M target line parameters and the target weight corresponding to each target line parameter, wherein the electrical evaluation result is used to verify the operating status of the target transmission line.

13. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, wherein when the computer program is executed, the device containing the computer-readable storage medium performs the method for processing line parameter information as described in any one of claims 1 to 11.

14. An electronic device, characterized in that, It includes one or more processors and a memory, the memory being used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors cause the one or more processors to perform the method for processing line parameter information as described in any one of claims 1 to 11.

15. A computer program product, characterized in that, It includes a computer program or instructions that, when executed by a processor, implement the method for processing line parameter information as described in any one of claims 1 to 11.

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