Evaluation and analysis method and system for corrosion state of grounding system

Abstract

The invention provides an evaluation and analysis method and system for the corrosion state of a grounding system, and belongs to the technical field of evaluation and analysis, and the method specifically comprises the steps: carrying out the evaluation and analysis of the corrosion state of an impedance deviation tower according to a preset method, and carrying out the evaluation and analysis of the corrosion state of an impedance deviation tower based on the impedance deviation tower data not in a grounding impedance interval; determining an updated identification scheme of the evaluation and analysis method for the corrosion state of the transmission line tower in each grounding impedance interval, and utilizing the updated identification scheme of the evaluation and analysis method for the transmission line tower in each grounding impedance interval to identify the corrosion state of the transmission line tower. And whether the transmission line tower needing grounding system processing exists in the grounding impedance interval of the target is determined, so that the accuracy of evaluation, analysis and processing of the corrosion state is improved.

Description

Technical Field

[0001] This invention belongs to the field of evaluation and analysis technology, and in particular relates to a method and system for evaluating and analyzing the corrosion status of grounding systems. Background Technology

[0002] To achieve the assessment and analysis of the corrosion status of the grounding system, the invention patent application CN202411335606.0, "A Grounding Grid Status Evaluation and Three-Dimensional Visualization Method Based on Historical Data Comparison," conducts online monitoring and data acquisition of the grounding grid conductivity. It adopts the fuzzy hierarchical analysis method and compares the conductivity monitoring data between grounding grids in the access area, the local grounding grid corrosion status monitoring data, and the historical data of grounding grid operation status monitoring to achieve a comprehensive assessment of the grounding grid status.

[0003] In the process of condition assessment and analysis of grounding systems, existing technical solutions neglect the similarity between the access impedance of transmission line towers in different grounding impedance ranges and the grounding impedance of other transmission line towers. Specifically, when the access impedance of transmission line towers in different grounding impedance ranges is highly consistent, if real-time monitoring is not performed, the amount of similar grounding impedance data will be large when constructing the corrosion condition assessment and analysis model in the later stage. This makes it difficult to ensure the efficiency of the assessment and analysis model construction and the accuracy of corrosion condition identification.

[0004] To address the aforementioned technical problems, this application provides a method and system for evaluating and analyzing the corrosion status of grounding systems. Summary of the Invention

[0005] To achieve the objectives of this invention, the following technical solution is adopted: Specifically, this application provides a method for evaluating and analyzing the corrosion status of a grounding system, which includes: S1 uses the grounding impedance detection data of the grounding system of the transmission line tower to determine the similarity between the grounding impedance of the grounding system of the transmission line tower in the distribution area and the grounding system of other transmission line towers. Based on the similarity, it determines the towers with impedance deviation in the distribution area. When it is determined that it is not necessary to use a preset method to evaluate and analyze the corrosion status of different transmission line towers based on the impedance deviation tower data in different grounding impedance ranges, it proceeds to the next step. S2 performs corrosion state assessment and analysis on the impedance deviation towers according to the preset method. Based on the impedance deviation tower data that is not in the grounding impedance range, it determines the updated identification scheme of the corrosion state assessment and analysis method for transmission line towers in the grounding impedance range. Using the updated identification scheme of the assessment and analysis method for transmission line towers in each grounding impedance range, it determines whether there are transmission line towers in the target grounding impedance range that need to be grounded.

[0006] The beneficial effects of this invention are as follows: By using tower data with impedance deviations within different grounding impedance ranges, it is determined whether a pre-defined method is needed to assess and analyze the corrosion status of all transmission line towers. This avoids the technical problem that the efficiency of constructing and analyzing the corrosion status assessment model is insufficient due to the limited number of towers with impedance deviations within different grounding impedance ranges. Furthermore, by determining a differentiated assessment and analysis strategy, the reliability of grounding impedance monitoring and the efficiency of constructing and analyzing the assessment model are improved.

[0007] By utilizing an updated identification scheme based on the evaluation and analysis method for transmission line towers within various grounding impedance intervals, it is possible to determine whether there are transmission line towers within the target grounding impedance intervals that require grounding system treatment. This avoids the situation where the updated identification scheme using real-time monitoring of grounding impedance has a large number of strict grounding impedance intervals, leading to transmission line towers with high grounding impedances being unable to meet the efficiency requirements for constructing the evaluation and analysis model after optimization. At the same time, by treating the grounding system of the transmission line towers, the operational safety of the transmission line tower grounding system is also ensured.

[0008] Furthermore, the grounding impedance detection data is determined based on the results of periodic on-site grounding impedance detection.

[0009] Furthermore, the similarity between the grounding impedance of the grounding system of the transmission line tower and the grounding systems of other transmission line towers includes the deviation of the grounding impedance of the transmission line tower in different field testing numbers.

[0010] Furthermore, the method for determining the impedance deviation towers in the power distribution area is as follows: Based on the aforementioned similarities, the deviation of the grounding impedance between the transmission line tower and other transmission line towers in different field testing sessions is determined. The average deviation between the transmission line tower and other transmission line towers is determined based on the average value of the deviation. The average deviation of the transmission line tower from other transmission line towers is used to determine whether the transmission line tower is an impedance deviation tower.

[0011] Furthermore, the method for determining the updated identification scheme of the assessment and analysis method for the corrosion state of transmission line towers within the grounding impedance range is as follows: The number of impedance deviation towers that are not within the grounding impedance range is determined using the impedance deviation tower data that are not within the grounding impedance range. The towers with impedance deviations within the grounding impedance range are used as matching deviation towers. Based on the number of matching deviation towers within the grounding impedance range and the number of impedance deviation towers not within the grounding impedance range, an updated identification scheme for the assessment and analysis method of corrosion status in transmission line towers within the grounding impedance range is determined.

[0012] In a second aspect, the present invention provides a computer system comprising: a memory and a processor connected in communication, and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the above-described method for evaluating and analyzing the corrosion status of a grounding system when running the computer program.

[0013] Other features and advantages will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0014] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] The above and other features and advantages of the present invention will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0016] Figure 1 This is a flowchart of a method for assessing and analyzing the corrosion status of grounding systems; Figure 2 This is a flowchart illustrating the method for determining the impedance deviation of towers in a power distribution area; Figure 3 This is a flowchart illustrating the method for determining an updated identification scheme for assessing and analyzing the corrosion status of transmission line towers within a grounding impedance range. Detailed Implementation

[0017] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0018] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended meaning of inclusion and that other elements / components / etc. may exist in addition to the listed elements / components / etc.

[0019] Example 1 To solve the above problems, according to one aspect of the present invention, such as Figure 1 As shown, a method for evaluating and analyzing the corrosion status of a grounding system is provided, specifically including: S1 uses the grounding impedance detection data of the grounding system of the transmission line tower to determine the similarity between the grounding impedance of the grounding system of the transmission line tower in the distribution area and the grounding system of other transmission line towers. Based on the similarity, it determines the towers with impedance deviation in the distribution area. When it is determined that it is not necessary to use a preset method to evaluate and analyze the corrosion status of different transmission line towers based on the impedance deviation tower data in different grounding impedance ranges, it proceeds to the next step. Furthermore, the grounding impedance detection data is determined based on the results of periodic on-site grounding impedance detection.

[0020] Furthermore, the similarity between the grounding impedance of the grounding system of the transmission line tower and the grounding systems of other transmission line towers includes the deviation of the grounding impedance of the transmission line tower in different field testing numbers.

[0021] Specifically, such as Figure 2 As shown, the method for determining the impedance deviation of the towers in the power distribution area is as follows: Based on the aforementioned similarities, the deviation of the grounding impedance between the transmission line tower and other transmission line towers in different field testing sessions is determined. The average deviation between the transmission line tower and other transmission line towers is determined based on the average value of the deviation. The average deviation of the transmission line tower from other transmission line towers is used to determine whether the transmission line tower is an impedance deviation tower.

[0022] Specifically, the mean deviation is the average of the absolute values ​​of the deviations across different field testing sessions.

[0023] It should be noted that if there are no other transmission line towers in the power distribution area whose average deviation value meets the requirements, then the transmission line tower is determined to be an impedance deviation tower.

[0024] In one possible specific embodiment, the transmission line tower is determined to be an impedance deviation tower when there are no other transmission line towers in the distribution area with an average deviation of less than 1 ohm.

[0025] Optionally, the method for determining the impedance deviation towers in the power distribution area is as follows: Based on the aforementioned similarities, the deviation of the grounding impedance between the aforementioned transmission line tower and other transmission line towers in different field testing sessions is determined; Based on the deviation, determine the maximum absolute value of the deviation between the transmission line tower and other transmission line towers, and use it as the maximum deviation. The maximum deviation between the transmission line tower and other transmission line towers is used to determine whether the transmission line tower is an impedance deviation tower.

[0026] It should be noted that when the maximum deviation from other transmission line towers is greater than the preset deviation threshold, the transmission line tower is determined to be an impedance deviation tower.

[0027] Furthermore, it was determined that it was unnecessary to use pre-defined methods to assess and analyze the corrosion status of all transmission line towers. Specifically, this included: The number of towers with impedance deviation in different grounding impedance ranges is determined by using the tower data. Based on the deviation of grounding impedance between transmission line towers within the grounding impedance range in different field testing times, the transmission line towers within the grounding impedance range are divided into multiple groups. Based on the number of towers and combinations with impedance deviations in different grounding impedance ranges, it is determined whether a pre-set method is needed to assess and analyze the corrosion status of different transmission line towers.

[0028] It should be noted that when the number of towers with impedance deviations in different access impedance ranges meets the requirements, it indicates that the corrosion status assessment and analysis model has sufficient monitoring data on impedance changes, and the amount of data is sufficient. Therefore, it is not necessary to use a preset method to conduct corrosion status assessment and analysis on different transmission line towers.

[0029] In one possible embodiment, if the number of towers with impedance deviations in different access impedance ranges is not less than 10, then it is determined that it is not necessary to use a preset method to evaluate and analyze the corrosion status of different transmission line towers.

[0030] Specifically, the grounding impedance interval is constructed based on the maximum and minimum grounding impedance of different transmission line towers in the distribution network, and is divided into equal intervals according to a preset interval. In one possible embodiment, the preset interval is 2 ohms.

[0031] Specifically, transmission line towers whose average deviation from all other transmission line towers in the group is less than 1 ohm are assigned to the group.

[0032] Furthermore, when the number of impedance deviation towers in different access impedance ranges does not uniformly meet the requirements, the sum of the number of impedance deviation towers and the number of combinations in different access impedance ranges is determined based on the number of impedance deviation towers and the number of combinations, and this sum is taken as the total number. When there is no access impedance range where the total number does not meet the requirements, it is determined that it is not necessary to use the preset method to evaluate and analyze the corrosion status in different transmission line towers.

[0033] In one possible specific embodiment, if there are no access impedance intervals with a total number of less than 15, it is determined that it is not necessary to use a preset method to evaluate and analyze the corrosion status in different transmission line towers.

[0034] Additionally, it is understood that when there are access impedance intervals that do not meet the requirements in total, if the number of access impedance intervals that do not meet the requirements in total is greater than the preset threshold for the number of impedance intervals, for example, more than 3, then it is determined that a preset method needs to be used to evaluate and analyze the corrosion status in different transmission line towers.

[0035] It should also be noted that if the total number of access impedance intervals that do not meet the requirements is not greater than the preset threshold number of impedance intervals, the monitoring ratio is determined by the ratio of the total number to the total number of transmission line towers within the access impedance intervals. If the monitoring ratios in different access impedance intervals are all greater than the preset ratio threshold, for example, greater than 0.3, then it is determined that it is not necessary to use the preset method to evaluate and analyze the corrosion status in different transmission line towers.

[0036] Furthermore, when there are access impedance intervals where the monitoring ratio is not greater than the preset ratio threshold, if the number of access impedance intervals where the monitoring ratio is not greater than the preset ratio threshold is greater than the preset impedance interval number threshold, for example, more than 3, then it is determined that the preset method needs to be used to conduct corrosion status assessment and analysis in different transmission line towers. In other cases, it is determined that the preset method does not need to be used to conduct corrosion status assessment and analysis in different transmission line towers.

[0037] In one possible specific embodiment, when it is determined that a preset method is needed to assess and analyze the corrosion status in different transmission line towers, an online monitoring device for grounding impedance is connected to each transmission line tower in the distribution network, thereby using the monitoring data from the online monitoring device to assess and analyze the corrosion status.

[0038] Furthermore, it was determined that it was unnecessary to use pre-defined methods to assess and analyze the corrosion status of all transmission line towers. Specifically, this included: The number of towers with impedance deviation in different grounding impedance ranges is determined by using the tower data. Based on the deviation of grounding impedance between transmission line towers within the grounding impedance range in different field testing times, the transmission line towers within the grounding impedance range are divided into multiple groups. Based on the number of towers and combinations of impedance deviations in different grounding impedance ranges, the monitoring ratio in different grounding impedance ranges is determined. Based on the number of towers with impedance deviation and the monitoring ratio in different grounding impedance ranges, it is determined whether a preset method is needed to assess and analyze the corrosion status of different transmission line towers.

[0039] It is understandable that when the number of towers with impedance deviations exceeds a preset threshold and towers with impedance deviations exist in different grounding impedance ranges, it is determined that it is not necessary to use a preset method to evaluate and analyze the corrosion status of different transmission line towers.

[0040] Furthermore, when the number of towers with impedance deviation is not greater than a preset threshold and towers with impedance deviation do not exist uniformly in different grounding impedance ranges, if the average value of the monitoring ratio in different grounding impedance ranges is greater than a preset monitoring ratio threshold, then it is determined that it is not necessary to use the preset method to evaluate and analyze the corrosion status in different transmission line towers.

[0041] S2 performs corrosion state assessment and analysis on the impedance deviation towers according to the preset method. Based on the impedance deviation tower data that is not in the grounding impedance range, it determines the updated identification scheme of the corrosion state assessment and analysis method for transmission line towers in the grounding impedance range. Using the updated identification scheme of the assessment and analysis method for transmission line towers in each grounding impedance range, it determines whether there are transmission line towers in the target grounding impedance range that need to be grounded.

[0042] Specifically, such as Figure 3 As shown, the method for determining the updated identification scheme of the assessment and analysis method for corrosion status in transmission line towers within the grounding impedance range is as follows: Based on the impedance deviation tower data that is not within the grounding impedance range, determine the number of impedance deviation towers that are not within the grounding impedance range, and use the impedance deviation towers within the grounding impedance range as matching deviation towers. Based on the number of impedance deviation towers that are not within the grounding impedance interval, determine the number of impedance deviation towers in adjacent grounding impedance intervals of the grounding impedance interval. Based on the number of matching deviation towers within the grounding impedance range and the number of impedance deviation towers in adjacent grounding impedance ranges, an updated identification scheme for the assessment and analysis method of corrosion status in transmission line towers within the grounding impedance range is determined.

[0043] Furthermore, if there is an adjacent grounding impedance interval in which the number of towers with impedance deviation does not meet the requirements, then the updated identification scheme of the evaluation and analysis method for the corrosion status of the transmission line towers in the grounding impedance interval is determined to be the preset identification scheme.

[0044] Additionally, it can be understood that when there are no adjacent grounding impedance intervals with a number of towers with impedance deviations within the adjacent grounding impedance intervals, if the proportion of towers with matching deviations within the grounding impedance intervals is less than a preset proportion threshold, then the updated identification scheme for the evaluation and analysis method of corrosion status in the transmission line towers within the grounding impedance intervals is determined to be the preset identification scheme.

[0045] Additionally, it can be understood that when the proportion of matching deviation towers in the grounding impedance range among the transmission line towers in the grounding impedance range is not less than a preset proportion threshold, the updated identification scheme of the evaluation and analysis method for the corrosion state of the transmission line towers in the grounding impedance range is determined to be the second identification scheme.

[0046] Furthermore, the target grounding impedance range is the grounding impedance range that does not meet the requirements. In one possible embodiment, the grounding impedance range with a minimum value at the endpoint greater than 15 ohms is taken as the target grounding impedance range.

[0047] Optionally, determine whether there are any transmission line towers requiring grounding system treatment within the target's grounding impedance range, specifically including: The grounding impedance range for which the preset identification scheme is adopted is determined by updating the evaluation and analysis method of transmission line towers in each grounding impedance range; Based on the access impedance range data using a preset identification scheme, determine whether there are any transmission line towers within the grounding impedance range of the target that require grounding system treatment.

[0048] It is understandable that when the number of grounding impedance intervals using the preset identification scheme meets the requirements, the reliability of the training data update processing of the evaluation and analysis model is high because the number of grounding impedance intervals using the preset identification scheme is large. Therefore, it is determined that there are transmission line towers that need to be grounded within the target grounding impedance interval. In other words, all transmission line towers within the target grounding impedance interval are regarded as transmission line towers that need to be grounded, thereby reducing their grounding impedance.

[0049] Additionally, it should be noted that when the number of grounding impedance intervals using the preset identification scheme does not meet the requirements, transmission line towers with grounding impedance greater than a threshold within the target grounding impedance interval are designated as transmission line towers requiring grounding system treatment, thereby reducing their grounding impedance. For example, if the grounding impedance is 20 ohms, then transmission line towers with grounding impedance greater than 20 ohms within the target grounding impedance interval are designated as transmission line towers requiring grounding system treatment.

[0050] Example 2 In a second aspect, the present invention provides a computer system comprising: a memory and a processor connected in communication, and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the above-described method for evaluating and analyzing the corrosion status of a grounding system when running the computer program.

[0051] Furthermore, the method for determining the updated identification scheme of the assessment and analysis method for the corrosion state of transmission line towers within the grounding impedance range is as follows: The number of impedance deviation towers that are not within the grounding impedance range is determined using the impedance deviation tower data that are not within the grounding impedance range. The towers with impedance deviations within the grounding impedance range are used as matching deviation towers. Based on the number of matching deviation towers within the grounding impedance range and the number of impedance deviation towers not within the grounding impedance range, an updated identification scheme for the assessment and analysis method of corrosion status in transmission line towers within the grounding impedance range is determined.

[0052] It is understandable that when the number of matching deviation towers within the grounding impedance range is less than the preset deviation tower number threshold, the updated identification scheme for the corrosion status assessment and analysis method of transmission line towers within the grounding impedance range is the preset identification scheme, that is, as long as there are no other transmission line towers within the grounding impedance range whose grounding impedance deviation meets the requirements during on-site measurement, the transmission line tower is determined to be the updated identification target of the corrosion status assessment and analysis method.

[0053] In one possible specific embodiment, when the number of matching deviation towers within the grounding impedance range is less than 10, the updated identification scheme of the corrosion state assessment and analysis method for transmission line towers within the grounding impedance range is determined to be the preset identification scheme. If the absolute value of the deviation of the grounding impedance of the transmission line tower from that of other transmission line towers within the grounding impedance range during on-site measurement is greater than 1 ohm, then the transmission line tower is determined to be the updated identification target of the corrosion state assessment and analysis method.

[0054] Furthermore, when the number of matching deviation towers within the grounding impedance range is not less than a preset deviation tower number threshold, and the number of matching deviation towers is greater than the preset number threshold, then the updated identification scheme for the corrosion status assessment and analysis method of the transmission line towers within the grounding impedance range is determined to be the second identification scheme. That is, the actual measurement process of the transmission line towers within the grounding impedance range that do not meet the grounding impedance deviation requirements is taken as the deviation measurement process. When the number of deviation measurement processes meets the requirements, the transmission line towers are taken as the updated identification targets for the corrosion status assessment and analysis method.

[0055] In one possible specific embodiment, if the number of the matching deviation towers is greater than three, then the transmission line towers are used as the updated identification targets for the corrosion state assessment and analysis method.

[0056] Additionally, it should be noted that when the number of matching deviation towers is not greater than a preset number threshold, it is also necessary to determine the number of impedance deviation towers in adjacent grounding impedance intervals of the grounding impedance interval. If the average number of impedance deviation towers in adjacent grounding impedance intervals of the grounding impedance interval does not meet the requirements, then the updated identification scheme of the evaluation and analysis method for corrosion status of transmission line towers in the grounding impedance interval is determined to be the preset identification scheme.

[0057] It should be noted that the adjacent grounding impedance intervals are the two grounding impedance intervals closest to the grounding impedance interval. For example, when the average number of impedance deviation towers in the adjacent grounding impedance intervals is less than 10, the updated identification scheme of the evaluation and analysis method for corrosion status in the transmission line towers in the grounding impedance interval is determined to be the preset identification scheme.

[0058] Furthermore, when the average number of towers with impedance deviation in adjacent grounding impedance intervals meets the requirements, the updated identification scheme of the evaluation and analysis method for corrosion status in transmission line towers within the grounding impedance interval is determined as the second identification scheme.

[0059] Example 3 Specifically, determine whether there are any transmission line towers within the target's grounding impedance range that require grounding system treatment, including: The grounding impedance range for which the preset identification scheme is adopted is determined by updating the evaluation and analysis method of transmission line towers in each grounding impedance range; An updated identification scheme for the evaluation and analysis method of transmission line towers based on the ground impedance interval between different ground impedance intervals and the target ground impedance interval is used to determine the ground impedance interval between the ground impedance interval and the target ground impedance interval using a preset identification scheme.

[0060] Based on the access impedance range data using a preset identification scheme and the grounding impedance ranges between different grounding impedance ranges and the target grounding impedance range using the preset identification scheme, it is determined whether there are any transmission line towers within the target grounding impedance range that require grounding system treatment.

[0061] It is understandable that when the number of grounding impedance intervals using the preset identification scheme meets the requirements, the reliability of the training data update processing of the evaluation and analysis model is high because the number of grounding impedance intervals using the preset identification scheme is large. Therefore, it is determined that there are transmission line towers that need to be grounded within the target grounding impedance interval. In other words, all transmission line towers within the target grounding impedance interval are regarded as transmission line towers that need to be grounded, thereby reducing their grounding impedance.

[0062] Additionally, it should be noted that when the number of grounding impedance intervals using the preset identification scheme does not meet the requirements, the ratio of the grounding impedance intervals using the preset identification scheme to the target grounding impedance interval is determined. If there are no grounding impedance intervals using the preset identification scheme with a ratio less than a preset ratio threshold, then it is determined that there are transmission line towers within the target grounding impedance interval that require grounding system treatment. In other words, all transmission line towers within the target grounding impedance interval are considered as transmission line towers requiring grounding system treatment, thereby reducing their grounding impedance.

[0063] In one possible embodiment, when the proportion of the ground impedance interval using the preset identification scheme in all ground impedance intervals is greater than 0.7, it is determined that the number of ground impedance intervals using the preset identification scheme meets the requirement. The ratio of the ground impedance intervals using the preset identification scheme to the target ground impedance interval is the ratio of the number of ground impedance intervals using the preset identification scheme between the ground impedance intervals using the preset identification scheme and the target ground impedance interval to the number of ground impedance intervals using the preset identification scheme between the ground impedance intervals using the preset identification scheme and the target ground impedance interval, for example, a preset ratio threshold of 0.5.

[0064] Furthermore, when there are grounding impedance intervals using a preset identification scheme with a proportion less than a preset proportion threshold, if the number of grounding impedance intervals using a preset identification scheme with a proportion less than the preset proportion threshold is greater than a preset interval number threshold, then it is determined that there are transmission line towers within the target grounding impedance interval that require grounding system treatment. That is, transmission line towers within the target grounding impedance interval whose grounding impedance is greater than a threshold are identified as transmission line towers that require grounding system treatment, thereby reducing their grounding impedance. For example, if the grounding impedance is 20 ohms, then transmission line towers within the target grounding impedance interval whose grounding impedance is greater than 20 ohms are identified as transmission line towers that require grounding system treatment.

[0065] Furthermore, if the number of grounding impedance intervals using the preset identification scheme with a proportion less than a preset proportion threshold is not greater than a preset interval number threshold, then it is determined that there are no transmission line towers requiring grounding system treatment within the grounding impedance interval of the target.

[0066] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the embodiments of apparatus, devices, and non-volatile computer storage media are basically similar to the method embodiments, so the descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0067] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0068] The above description is merely one or more embodiments of this specification and is not intended to limit this specification. Various modifications and variations can be made to the one or more embodiments of this specification by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of one or more embodiments of this specification should be included within the scope of the claims of this specification.

Claims

1. An evaluation analysis method for the corrosion state of a grounding system, characterized by, Specifically comprising: With the detection data of the grounding impedance of the grounding system of the transmission line tower, the similar situation of the grounding impedance of the grounding system of the transmission line tower in the power distribution area and other transmission line towers is determined, the impedance deviation tower in the power distribution area is determined based on the similar situation, with the impedance deviation tower data in different grounding impedance intervals, it is determined whether the preset method needs to be used to perform corrosion state evaluation and analysis processing in different transmission line towers, and the next step is entered; The impedance deviation tower is subjected to corrosion state evaluation and analysis processing according to the preset method, the updating identification scheme of the corrosion state evaluation and analysis method of the transmission line tower in the grounding impedance interval is determined based on the impedance deviation tower data not in the grounding impedance interval, and whether there is a transmission line tower needing grounding system processing in the target grounding impedance interval is determined by using the updating identification scheme of the evaluation and analysis method of the transmission line tower in each grounding impedance interval.

2. The evaluation analysis method for the corrosion state of a grounding system according to Claim 1, wherein The detection data of the grounding impedance is determined according to the periodic on-site grounding impedance detection results.

3. The evaluation analysis method for the corrosion state of a grounding system according to Claim 1, wherein The similar situation of the grounding impedance of the grounding system of the transmission line tower and other transmission line towers includes the deviation amount of the grounding impedance of the transmission line tower in different on-site detection times.

4. The evaluation analysis method for the corrosion state of a grounding system according to Claim 1, wherein The method for determining the impedance deviation tower in the power distribution area is: Based on the similar situation, the deviation amount of the grounding impedance of the transmission line tower and other transmission line towers in different on-site detection times is determined; The average value of the deviation amount of the transmission line tower and other transmission line towers is determined based on the average value of the deviation amount; Whether the transmission line tower is an impedance deviation tower is determined based on the average value of the deviation amount of other transmission line towers.

5. The evaluation analysis method for the corrosion state of a grounding system according to Claim 4, characterized by, The average value of the deviation amount is the average value of the absolute value of the deviation amount in different on-site detection times.

6. The evaluation analysis method for the corrosion state of a grounding system according to Claim 1, wherein Specifically comprising: With the impedance deviation tower data in different grounding impedance intervals, the number of impedance deviation towers in different grounding impedance intervals is determined; According to the deviation amount of the grounding impedance between the transmission line towers in the grounding impedance interval in different on-site detection times, the transmission line towers in the grounding impedance interval are divided into a plurality of combinations; Based on the number of impedance deviation towers in different grounding impedance intervals and the number of combinations, it is determined whether the preset method needs to be used to perform corrosion state evaluation and analysis processing in different transmission line towers.

7. The evaluation analysis method for the corrosion state of a grounding system according to Claim 6, wherein When the number of impedance deviation towers in different access impedance intervals meets the requirements, the preset method does not need to be used to perform corrosion state evaluation and analysis processing in different transmission line towers.

8. The evaluation analysis method for the corrosion state of a grounding system according to Claim 1, wherein Specifically comprising: With the updating identification scheme of the evaluation and analysis method of the transmission line tower in each grounding impedance interval, the grounding impedance interval using the preset identification scheme is determined; The updating identification scheme of the evaluation analysis method of the transmission line tower in the grounding impedance interval between the different grounding impedance intervals and the target grounding impedance interval determines the grounding impedance interval between the different grounding impedance intervals and the target grounding impedance interval using the preset identification scheme; According to the access impedance interval data using the preset identification scheme and the grounding impedance interval between the different grounding impedance intervals and the target grounding impedance interval using the preset identification scheme, it is determined whether there is a transmission line tower in the target grounding impedance interval that needs to be processed by the grounding system.

9. The evaluation analysis method for the corrosion state of a grounding system according to Claim 8, wherein When the number of grounding impedance intervals using the preset identification scheme meets the requirements, it is determined that there is a transmission line tower in the target grounding impedance interval that needs to be processed by the grounding system.

10. A computer system comprising: The memory and processor connected in communication, and the computer program stored on the memory and capable of running on the processor, characterized in that the processor executes the computer program to perform the evaluation analysis method of the corrosion state of the grounding system according to any one of claims 1-9.

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