Power distribution line distributed monitoring terminal arrangement method and device, equipment and medium

Abstract

The application discloses a power distribution line distributed monitoring terminal arrangement method, device, equipment and medium, and is used for solving the technical problem that the accuracy of obtaining 10kV multi-stage branch power distribution network lightning fault information of the existing distributed lightning current monitoring terminal is low. The application comprises the following steps: acquiring actual line information of a preset power distribution line, and building a simulation model according to the actual line information; extracting a lightning current attenuation law on a main line of the power distribution line through the simulation model; determining a main line point arrangement principle of a distributed monitoring terminal according to the lightning current attenuation law; acquiring branch capacities and load sizes of each branch line of the power distribution line, and determining a target point arrangement branch line according to the branch capacities and the load sizes; generating a point arrangement scheme according to the main line point arrangement principle and the target point arrangement branch line; and arranging the distributed monitoring terminal on the power distribution line according to the point arrangement scheme.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power distribution network monitoring, and in particular to a power distribution line distributed monitoring terminal arrangement method, device, equipment and medium. BACKGROUND

[0002] Lightning has been an important threat to the safe and stable operation of the power system. Operation data shows that the tripping of distribution lines caused by lightning accounts for 60%-80% of the total line tripping rate, which is mainly due to the complex topology of the distribution network, poor grounding conditions, low insulation level of the distribution line, wide distribution of the line, poor grounding conditions of the tower, and other factors, which makes the distribution line more vulnerable to lightning and causes power outages. In areas with high lightning and high soil resistivity, the accident rate caused by lightning lines is higher. For a long time, there have been few measures to prevent lightning in the distribution network, and the monitoring of the power system is mainly concentrated on the transmission line. This results in rough recording of operation and maintenance data of the distribution network, incomplete fault information of the distribution network, and a large amount of manpower, material resources and time spent on fault patrol and fault repair of the distribution network, resulting in a long time to restore power supply, reducing power supply reliability and causing serious economic losses.

[0003] Therefore, it is necessary to improve the informatization level of distribution network planning. The first thing to do is to arrange distributed lightning current monitoring terminals on 10kV multi-level branch distribution networks.

[0004] However, the existing arrangement of distributed lightning current monitoring terminals has a low accuracy in obtaining lightning fault information of 10kV multi-level branch distribution networks. SUMMARY

[0005] The present application provides a power distribution line distributed monitoring terminal arrangement method, device, equipment and medium, which solves the technical problem of low accuracy of existing distributed lightning current monitoring terminal arrangement in obtaining lightning fault information of 10kV multi-level branch distribution networks.

[0006] The present application provides a power distribution line distributed monitoring terminal arrangement method, which comprises:

[0007] Obtain the actual line information of the preset power distribution line, and build a simulation model according to the actual line information;

[0008] Extract the lightning current attenuation law on the main line of the power distribution line through the simulation model;

[0009] Determine the main line point arrangement principle of the distributed monitoring terminal according to the lightning current attenuation law;

[0010] Obtain the branch capacity and load size of each branch line of the power distribution line, and determine the target point arrangement branch line according to the branch capacity and the load size;

[0011] generate a distribution scheme according to the main line distribution principle and the target distribution branch;

[0012] arrange the distributed monitoring terminal on the power distribution line according to the distribution scheme.

[0013] Optionally, the simulation model is provided with a plurality of monitoring intervals; the step of extracting the lightning current attenuation law on the main line of the power distribution line through the simulation model comprises:

[0014] extracting the lightning current attenuation rate of each monitoring interval from the simulation model;

[0015] obtaining the number of branches in each monitoring interval;

[0016] generating the lightning current attenuation law on the main line of the power distribution line according to the lightning current attenuation rate and the number of branches of each monitoring interval.

[0017] Optionally, the step of determining the main line distribution principle of the distributed monitoring terminal according to the lightning current attenuation law comprises:

[0018] calculating the upper limit value of the distribution distance and the upper limit value of the number of distribution branches using the lightning current attenuation law and a preset lightning current attenuation rate threshold;

[0019] generating the main line distribution principle of the distributed monitoring terminal using the upper limit value of the distribution distance and the upper limit value of the number of distribution branches.

[0020] Optionally, the step of arranging the distributed monitoring terminal on the power distribution line according to the distribution scheme comprises:

[0021] performing simulation verification on the distribution scheme;

[0022] when the verification is passed, arranging the distributed monitoring terminal on the power distribution line using the distribution scheme.

[0023] The application also provides a power distribution line distributed monitoring terminal arrangement device, comprising:

[0024] a simulation model building module, configured to obtain actual line information of a preset power distribution line, and build a simulation model according to the actual line information;

[0025] a lightning current attenuation law extraction module, configured to extract the lightning current attenuation law on the main line of the power distribution line through the simulation model;

[0026] a main line distribution principle determination module, configured to determine the main line distribution principle of the distributed monitoring terminal according to the lightning current attenuation law;

[0027] The target distribution point branch determination module is configured to acquire branch capacities and load sizes of each branch of the power distribution line, and determine target distribution point branches according to the branch capacities and the load sizes.

[0028] The distribution scheme generation module is configured to generate a distribution scheme according to the main line distribution principle and the target distribution point branches.

[0029] The arrangement module is configured to arrange the distributed monitoring terminal on the power distribution line according to the distribution scheme.

[0030] Optionally, the simulation model is provided with a plurality of monitoring intervals; the lightning current attenuation law extraction module comprises:

[0031] The lightning current attenuation rate extraction submodule is configured to extract lightning current attenuation rates of each monitoring interval from the simulation model.

[0032] The branch number acquisition submodule is configured to acquire the number of branches in each monitoring interval.

[0033] The lightning current attenuation law generation submodule is configured to generate a lightning current attenuation law on the main line of the power distribution line according to the lightning current attenuation rates and the number of branches of each monitoring interval.

[0034] Optionally, the main line distribution principle determination module comprises:

[0035] The distribution distance upper limit value and distribution branch number upper limit value calculation submodule is configured to calculate a distribution distance upper limit value and a distribution branch number upper limit value by using the lightning current attenuation law and a preset lightning current attenuation rate threshold value.

[0036] The main line distribution principle generation submodule is configured to generate a main line distribution principle of the distributed monitoring terminal by using the distribution distance upper limit value and the distribution branch number upper limit value.

[0037] Optionally, the arrangement module comprises:

[0038] The verification submodule is configured to perform simulation verification on the distribution scheme.

[0039] The arrangement submodule is configured to arrange the distributed monitoring terminal on the power distribution line by using the distribution scheme when the verification passes.

[0040] The present application also provides an electronic device, which comprises a processor and a memory:

[0041] The memory is configured to store program code and transmit the program code to the processor.

[0042] The processor is configured to execute the power distribution line distributed monitoring terminal arrangement method according to any one of the preceding embodiments.

[0043] The application further provides a computer readable storage medium for storing program codes, the program codes being used to execute the power distribution line distributed monitoring terminal arrangement method according to any one of the preceding embodiments.

[0044] From the above technical solutions, it can be seen that the application has the following advantages: the application provides a power distribution line distributed monitoring terminal arrangement method, which comprises the following steps: acquiring actual line information of a preset power distribution line, and building a simulation model according to the actual line information; extracting a lightning current attenuation law on a main line of the power distribution line through the simulation model; determining a main line point distribution principle of the distributed monitoring terminal according to the lightning current attenuation law; acquiring branch capacities and load sizes of each branch line of the power distribution line, and generating a branch line point distribution principle according to the branch capacities and the load sizes; generating a point distribution scheme according to the main line point distribution principle and the branch line point distribution principle; and arranging the distributed monitoring terminal on the power distribution line according to the point distribution scheme. Through the embodiment of the application, the monitoring of fault information on the power distribution line can be effectively realized, thereby providing an analysis basis for troubleshooting of a fault point and improving power supply reliability. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0046] Figure 1 A step flow chart of the power distribution line distributed monitoring terminal arrangement method provided by the embodiment of the application is shown in the following figure:

[0047] Figure 2 A step flow chart of the power distribution line distributed monitoring terminal arrangement method provided by another embodiment of the application is shown in the following figure:

[0048] Figure 3 A simulation model schematic diagram provided by the embodiment of the application is shown in the following figure:

[0049] Figure 4 A point distribution scheme schematic diagram of a 10kV power distribution line provided by the embodiment of the application is shown in the following figure:

[0050] Figure 5 A lightning stroke schematic diagram provided by the embodiment of the application is shown in the following figure:

[0051] Figure 6This is a schematic diagram of the structure of a distributed monitoring terminal deployment device for power distribution lines, provided in an embodiment of the present invention. Detailed Implementation

[0052] This invention provides a method, apparatus, equipment, and medium for deploying distributed monitoring terminals for power distribution lines, which addresses the technical problem of low accuracy in obtaining lightning fault information of 10kV multi-level distributed power grids using existing distributed lightning current monitoring terminal deployments.

[0053] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0054] Please see Figure 1 , Figure 1 A flowchart illustrating the steps of a distributed monitoring terminal deployment method for power distribution lines, as provided in an embodiment of the present invention.

[0055] The present invention provides a method for arranging distributed monitoring terminals for power distribution lines, which may specifically include the following steps:

[0056] Step 101: Obtain the actual line information of the preset power distribution line and build a simulation model based on the actual line information;

[0057] A power distribution line is a line that carries electricity from a step-down substation to a distribution transformer or from a distribution substation to a power-consuming unit.

[0058] In this embodiment of the invention, the layout of distributed monitoring terminals for power distribution lines can be analyzed using a simulation model.

[0059] Step 102: Extract the attenuation law of lightning current on the main line of the distribution line through simulation model;

[0060] In this embodiment of the invention, the lightning current attenuation law refers to the relationship between the magnitude of the lightning current and the distance and the number of branches along the main line. By extracting current data at various locations on the distribution line through a simulation model, the lightning current attenuation law can be analyzed.

[0061] Step 103: Determine the main layout principle of distributed monitoring terminals based on the lightning current attenuation law;

[0062] In this embodiment of the invention, the main line layout principle of the distributed monitoring terminals can be determined based on the lightning current attenuation law. The main line layout principle is used to determine the arrangement of the distributed monitoring terminals on the main line.

[0063] Step 104: Obtain the branch capacity and load size of each branch of the power distribution line, and determine the target branch line based on the branch capacity and load size;

[0064] In this embodiment of the invention, the main line is often connected to several branch lines. In order to monitor the branch lines, distributed monitoring terminals can be deployed on the branch lines.

[0065] In practice, the target deployment points for distributed monitoring terminals can be selected based on the branch capacity and load size of the branch lines.

[0066] Step 105: Generate a point layout plan based on the main point layout principle and the target point layout branches;

[0067] In this embodiment of the invention, a point layout scheme can be generated based on the main point layout principle and the target point layout branches.

[0068] Step 106: Deploy distributed monitoring terminals on the power distribution lines according to the deployment plan.

[0069] After obtaining the deployment plan, distributed detection terminals can be deployed on the power distribution lines to monitor for faults.

[0070] This invention acquires the actual line information of a preset power distribution line and builds a simulation model based on this information. It then extracts the lightning current attenuation pattern on the main line of the power distribution line using the simulation model. Based on this attenuation pattern, it determines the main line deployment principle for distributed monitoring terminals. Next, it acquires the branch capacity and load size of each branch of the power distribution line and generates branch line deployment principles based on these parameters. Finally, it generates a deployment plan based on the main line and branch line deployment principles and deploys distributed monitoring terminals on the power distribution line according to the plan. This effectively enables the monitoring of fault information on the power distribution line, providing an analytical basis for fault location and improving power supply reliability.

[0071] Please see Figure 2 , Figure 2 A flowchart illustrating the steps of a method for deploying distributed monitoring terminals for power distribution lines, as provided in another embodiment of the present invention. Specifically, it may include the following steps:

[0072] Step 201: Obtain the actual line information of the preset power distribution line, and build a simulation model based on the actual line information;

[0073] Step 201 is the same as step 101. For details, please refer to the description of step 101. It will not be repeated here.

[0074] Step 202: Extract the attenuation law of lightning current on the main line of the distribution line through simulation model;

[0075] In this embodiment of the invention, the simulation model is set with multiple monitoring intervals; the step of extracting the lightning current attenuation law on the main line of the distribution line through the simulation model may specifically include the following sub-steps:

[0076] S21, Extract the lightning current attenuation rate of each monitoring interval from the simulation model;

[0077] S22, obtain the number of branches in each monitoring interval;

[0078] S23, generate the lightning current attenuation law on the main line of the distribution line based on the lightning current attenuation rate and the number of branch lines in each monitoring section.

[0079] In this embodiment of the invention, multiple monitoring points can be set at fixed intervals in the simulation model generated by the power distribution line to obtain multiple monitoring intervals. Then, the current values ​​of the monitoring points at both ends of each monitoring interval are obtained; the ratio between the current value of the monitoring point at the end and the current value of the monitoring point at the beginning is calculated to obtain the lightning current attenuation rate of the monitoring interval.

[0080] Next, the number of branch lines in each monitoring section is obtained, and the lightning current attenuation rate of each monitoring section is combined to generate the lightning current attenuation law on the main line of the distribution line.

[0081] In one example, the lightning current attenuation rate can include both the forward average attenuation rate and the reverse average attenuation rate. For example... Figure 3 As shown, Figure 3 This is a schematic diagram of a simulation model provided for an embodiment of the present invention. Based on... Figure 3 The simulation model consists of an 11kV substation, a 35kV-10kV substation, and the distribution lines between them. The distribution lines are divided into 11 monitoring sections, from section 1 to section 11, by 12 monitoring points (#1, #8, #15, #22, #29, #36, #43, #50, #57, #64, #71, #78).

[0082] based on Figure 3 The simulation model yields the lightning current attenuation law shown in Table 1.

[0083]

[0084] Table 1

[0085] As shown in Table 1, the lightning current attenuation rate is affected by the line length and the number of branches within the monitoring section. The longer the line, the greater the lightning current attenuation rate; the more straight lines within the monitoring section, the greater the lightning current attenuation rate.

[0086] Step 203: Determine the main layout principle of distributed monitoring terminals based on the lightning current attenuation law;

[0087] In this embodiment of the invention, the step of determining the mainline deployment principle of distributed monitoring terminals based on the lightning current attenuation law may include the following sub-steps:

[0088] S31, calculate the upper limit of the distance between the deployment points and the upper limit of the number of branch lines by using the lightning current attenuation law and the preset lightning current attenuation rate threshold.

[0089] S32 adopts the principle of generating the main line layout of distributed monitoring terminals by using the upper limit value of the layout distance and the upper limit value of the number of layout branches.

[0090] In this embodiment of the invention, the upper limit of the distance between two adjacent distributed monitoring terminals and the upper limit of the number of branch lines can be determined by the lightning current attenuation law and the preset lightning current attenuation rate threshold (such as 70%).

[0091] In one example, if there are many branches between main lines, the main line can be divided, without exceeding the maximum number of branch lines, to shorten the distance between two distributed monitoring terminals. If there are few straight lines between main lines, a greater distance can be set between adjacent distributed monitoring terminals, without exceeding the maximum number of branch lines and the maximum distance.

[0092] Taking a multi-branch 10kV distribution line as an example, the principle for the main line layout is that the distance between adjacent monitoring terminals should not exceed 3 kilometers, and the number of branches that need to be monitored should not exceed 3.

[0093] Step 204: Obtain the branch capacity and load size of each branch of the power distribution line, and determine the target branch line based on the branch capacity and load size;

[0094] In practice, the target deployment points for distributed monitoring terminals can be selected based on the branch capacity and load size of the branch lines.

[0095] Step 205: Generate a point layout plan based on the main point layout principle and the target point layout branch lines;

[0096] In this embodiment of the invention, a point layout scheme can be generated based on the main point layout principle and the target point layout branches.

[0097] like Figure 4 As shown, Figure 4 This is a schematic diagram of a 10kV distribution line layout scheme provided by an embodiment of the present invention. ①-⑩ represent distributed monitoring terminals.

[0098] Step 206: Perform simulation verification of the site layout plan;

[0099] Step 207: When the verification is successful, deploy distributed monitoring terminals on the power distribution line using the deployment scheme.

[0100] In practical implementation, the deployment scheme can be verified through simulation. First, lightning strike behavior is simulated. Then, the lightning strike location is calculated using the deployment scheme. The calculated lightning strike location is then compared with the simulated lightning strike location to determine whether the deployment scheme is effective. If effective, distributed monitoring terminals are deployed on the power distribution line according to the scheme.

[0101] In one example, such as Figure 5 As shown, assuming the lightning strike point is located on branch line 2, the lightning strike is first determined to occur within the monitoring interval between distributed monitoring terminals ⑧ and ⑨ on the main line by observing the opposite polarities of their three-phase currents. Given that there are four distributed monitoring terminals in this monitoring interval, a four-terminal network is constructed for this interval. The lightning strike location is then determined using the following four-terminal lightning strike location determination matrix A:

[0102]

[0103] Each value in each row represents the ratio of the time it takes for the lightning traveling wave to reach the corresponding number of distributed monitoring terminals to the time it takes for the lightning traveling wave to travel from the corresponding number of distributed monitoring terminals in the row to the corresponding number of distributed monitoring terminals in the column.

[0104] Next, the lightning strike location determination matrix A is corrected for errors to obtain the corrected lightning strike location determination matrix A1:

[0105]

[0106] The lightning strike location determination matrix A1, after matrix correction, indicates that the lightning fault point is located on the branch line where the distributed monitoring terminal ⑥ is located. The distance between this fault point and the distributed monitoring terminal ⑥ is then calculated, ultimately yielding the location of the lightning fault point. The calculated location is compared with the simulation results. If the relative error between the two is less than a preset threshold (which can be set according to actual conditions), the arrangement scheme is considered effective.

[0107] This invention acquires the actual line information of a preset power distribution line and builds a simulation model based on this information. It then extracts the lightning current attenuation pattern on the main line of the power distribution line using the simulation model. Based on this attenuation pattern, it determines the main line deployment principle for distributed monitoring terminals. Next, it acquires the branch capacity and load size of each branch of the power distribution line and generates branch line deployment principles based on these parameters. Finally, it generates a deployment plan based on the main line and branch line deployment principles and deploys distributed monitoring terminals on the power distribution line according to the plan. This effectively enables the monitoring of fault information on the power distribution line, providing an analytical basis for fault location and improving power supply reliability.

[0108] Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of a distributed monitoring terminal deployment device for power distribution lines, provided in an embodiment of the present invention.

[0109] This invention provides a distributed monitoring terminal deployment device for power distribution lines, comprising:

[0110] The simulation model building module 601 is used to obtain the actual line information of the preset power distribution line and build a simulation model based on the actual line information.

[0111] The lightning current attenuation law extraction module 602 is used to extract the lightning current attenuation law on the main line of the distribution line through a simulation model.

[0112] The main line deployment principle determination module 603 is used to determine the main line deployment principle of distributed monitoring terminals based on the lightning current attenuation law.

[0113] The target branch line determination module 604 is used to obtain the branch capacity and load size of each branch of the power distribution line, and determine the target branch line based on the branch capacity and load size.

[0114] The point layout scheme generation module 605 is used to generate a point layout scheme based on the main point layout principle and the target point layout branch line;

[0115] The deployment module 606 is used to deploy distributed monitoring terminals on the power distribution line according to the deployment plan.

[0116] In this embodiment of the invention, the simulation model is configured with multiple monitoring intervals; the lightning current attenuation law extraction module 602 includes:

[0117] The lightning current attenuation rate extraction submodule is used to extract the lightning current attenuation rate of each monitoring interval from the simulation model;

[0118] The branch line quantity acquisition submodule is used to obtain the number of branches in each monitoring interval;

[0119] The lightning current attenuation law generation submodule is used to generate the lightning current attenuation law on the main line of the distribution line based on the lightning current attenuation rate and the number of branches in each monitoring section.

[0120] In this embodiment of the invention, the main line layout principle determination module 603 includes:

[0121] The submodule for calculating the upper limit of the distance between deployment points and the upper limit of the number of branch lines is used to calculate the upper limit of the distance between deployment points and the upper limit of the number of branch lines using the lightning current attenuation law and the preset lightning current attenuation rate threshold.

[0122] The main line deployment principle generation submodule is used to generate the main line deployment principle of distributed monitoring terminals by using the upper limit value of deployment distance and the upper limit value of the number of deployment branches.

[0123] In this embodiment of the invention, the arrangement module 606 includes:

[0124] The verification submodule is used to simulate and verify the site layout plan.

[0125] The deployment submodule is used to deploy distributed monitoring terminals on the power distribution line according to the deployment scheme when the verification is successful.

[0126] This invention also provides an electronic device, which includes a processor and a memory:

[0127] The memory is used to store program code and transfer the program code to the processor;

[0128] The processor is used to execute the distributed monitoring terminal deployment method for power distribution lines according to the instructions in the program code of this embodiment of the invention.

[0129] This invention also provides a computer-readable storage medium for storing program code, which is used to execute the distribution line distributed monitoring terminal deployment method of this invention.

[0130] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0131] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0132] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, apparatus, or computer program products. Therefore, embodiments of the present invention can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of the present invention can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0133] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0134] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0135] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal equipment, causing a series of operational steps to be performed on the computer or other programmable terminal equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable terminal equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0136] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present invention.

[0137] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0138] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for arranging distributed monitoring terminals for power distribution lines, characterized in that, include: Obtain the actual line information of the preset power distribution line, and build a simulation model based on the actual line information; The attenuation law of lightning current on the main line of the power distribution line is extracted using the simulation model. The main deployment principle of distributed monitoring terminals is determined based on the lightning current attenuation law. Obtain the branch capacity and load size of each branch of the power distribution line, and determine the target branch line based on the branch capacity and load size; A point layout scheme is generated based on the main line layout principle and the target point branch lines; The distributed monitoring terminals are deployed on the power distribution lines according to the deployment plan.

2. The method according to claim 1, characterized in that, The simulation model is configured with multiple monitoring intervals; the step of extracting the lightning current attenuation law on the main line of the distribution line through the simulation model includes: Extract the lightning current attenuation rate for each monitoring interval from the simulation model; Obtain the number of branches within each monitoring interval; The lightning current attenuation pattern on the main line of the power distribution line is generated based on the lightning current attenuation rate and the number of branch lines in each monitoring interval.

3. The method according to claim 1, characterized in that, The step of determining the mainline deployment principle of distributed monitoring terminals based on the lightning current attenuation law includes: The upper limit values ​​of the deployment distance and the upper limit values ​​of the number of deployment branches are calculated using the lightning current attenuation law and the preset lightning current attenuation rate threshold. The main line deployment principle of the distributed monitoring terminal is generated by using the upper limit value of the deployment distance and the upper limit value of the number of deployment branches.

4. The method according to claim 1, characterized in that, The step of deploying the distributed monitoring terminals on the power distribution line according to the deployment plan includes: The proposed site selection scheme was verified through simulation. When the verification is successful, the distributed monitoring terminals are deployed on the power distribution line according to the deployment scheme.

5. A distributed monitoring terminal deployment device for power distribution lines, characterized in that, include: The simulation model building module is used to obtain the actual line information of the preset power distribution line and build a simulation model based on the actual line information. The lightning current attenuation law extraction module is used to extract the lightning current attenuation law on the main line of the distribution line through the simulation model. The main line deployment principle determination module is used to determine the main line deployment principle of the distributed monitoring terminals based on the lightning current attenuation law. The target branch line determination module is used to obtain the branch capacity and load size of each branch of the power distribution line, and determine the target branch line based on the branch capacity and the load size. The point layout scheme generation module is used to generate a point layout scheme based on the main point layout principle and the target point layout branch line; The deployment module is used to deploy the distributed monitoring terminals on the power distribution line according to the deployment plan.

6. The apparatus according to claim 5, characterized in that, The simulation model is configured with multiple monitoring intervals; The lightning current attenuation law extraction module includes: The lightning current attenuation rate extraction submodule is used to extract the lightning current attenuation rate of each monitoring interval from the simulation model. The branch number acquisition submodule is used to acquire the number of branches in each monitoring interval; The lightning current attenuation law generation submodule is used to generate the lightning current attenuation law on the main line of the distribution line based on the lightning current attenuation rate and the number of branches in each monitoring interval.

7. The apparatus according to claim 5, characterized in that, The module for determining the main line layout principle includes: The submodule for calculating the upper limit of the distance between deployment points and the upper limit of the number of branch lines is used to calculate the upper limit of the distance between deployment points and the upper limit of the number of branch lines using the lightning current attenuation law and the preset lightning current attenuation rate threshold. The main line deployment principle generation submodule is used to generate the main line deployment principle of the distributed monitoring terminal using the upper limit value of the deployment distance and the upper limit value of the number of deployment branches.

8. The apparatus according to claim 5, characterized in that, The arrangement module includes: The verification submodule is used to perform simulation verification of the point layout scheme; The deployment submodule is used to deploy the distributed monitoring terminals on the power distribution line according to the deployment scheme when the verification is successful.

9. An electronic device, characterized in that, The device includes a processor and a memory: The memory is used to store program code and transmit the program code to the processor; The processor is used to execute the distributed monitoring terminal deployment method for power distribution lines according to any one of the instructions in the program code.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store program code for executing the distributed monitoring terminal deployment method for power distribution lines according to any one of claims 1-4.

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