A lightning current identification and recording method, device, equipment and medium

Abstract

The present application relates to the technical field of feeder terminals, and in particular to a method, device, equipment and medium for identifying and recording lightning current. The present application forms a vacuum circuit breaker through a pole and a shell, collects voltage through a lightning arrester connected to the vacuum circuit breaker, obtains voltage data through a feeder terminal, collects current by setting a lightning arrester sensor at the grounding end of the lightning arrester, obtains current data through the feeder terminal, identifies the current data, determines whether the target current is a lightning current, obtains the position information of the feeder terminal when it is determined to be a lightning current, and records the target current to obtain recording data, then generates lightning data and sends it to a monitoring terminal, so that the monitoring terminal can obtain the information of the lightning strike in the first time, and check the equipment struck by lightning in the first time according to the position information and recording data, and solve the fault caused by lightning.

Description

Technical Field

[0001] The present application relates to the technical field of feeder terminals, and in particular to a method, device, equipment and medium for identifying and recording lightning current. Background Art

[0002] The distribution network feeder terminal is an electric power equipment with functions such as remote control, remote signaling, remote measurement and fault detection. It can communicate with the distribution automation master station in real time, upload line operation data, and provide monitoring information of various parameters of the distribution system. Although the existing feeder terminals are equipped with lightning protection devices, they can only play a protective role and cannot identify and locate lightning. The monitoring personnel cannot know the specific location of the lightning strike in the first time, so the faults caused by lightning cannot be solved in the first time. This situation needs to be further improved. Summary of the invention

[0003] In order to solve the problem that the existing feeder terminal cannot identify and locate lightning, the present application provides a lightning current identification and recording method, device, equipment and medium, which adopts the following technical solutions:

[0004] In a first aspect, the present application provides a lightning current identification and recording method, which is applied to a feeder device, wherein the feeder device includes a feeder terminal, a lightning arrester, a lightning arrester sensor, a bracket, a shell and a pole, wherein a wiring terminal of the lightning arrester is connected to an incoming line terminal of the pole, and the power-taking capacitors on both sides of the pole are assembled with the shell to form a vacuum circuit breaker, and the incoming line interface of the vacuum circuit breaker is connected to the feeder terminal, the lightning arrester sensor passes through the lightning arrester grounding section and is connected to the feeder terminal, the lightning arrester sensor and the lightning arrester are installed on the bracket, and the bracket is connected to the shell, and the method includes the following steps:

[0005] Acquiring current data of a target current collected by the arrester sensor;

[0006] Identify the target current according to the current data to determine whether the target current is a lightning current;

[0007] When it is determined that the target current is a lightning current, obtaining position information corresponding to the feeder terminal;

[0008] Recording the target current to obtain recorded data;

[0009] Lightning strike data is generated according to the location information and the recorded wave data and sent to a monitoring terminal.

[0010] By adopting the above technical scheme, the present application forms a vacuum circuit breaker through a pole and a shell, collects voltage through a lightning arrester connected to the vacuum circuit breaker, obtains voltage data through a feeder terminal, collects current by setting a lightning arrester sensor at the grounding end of the lightning arrester, obtains current data through the feeder terminal, and determines whether the target current is a lightning strike current by identifying the current data. When it is determined to be a lightning strike current, the position information of the feeder terminal is obtained, and the target current is recorded to obtain recorded data. Then, the lightning strike data is generated and sent to the monitoring terminal, so that the monitoring terminal can obtain the lightning strike information as soon as possible, and check the equipment struck by lightning as soon as possible according to the position information and the recorded data, so as to solve the fault caused by lightning.

[0011] Optionally, the identifying the target current according to the current data to determine whether the target current is a lightning current specifically includes:

[0012] Generate a current waveform according to the current data, analyze the current waveform to obtain a short impulse front time, an effective current number and a half peak time;

[0013] When it is determined that the short impulse front time, the effective current times and the half peak time all meet preset conditions, it is determined that the target current is a lightning strike current.

[0014] By adopting the above-mentioned technical scheme, the present application generates a current waveform through current data, analyzes the current waveform, obtains the short impulse front time, the effective current times and the half-peak time, and finally determines that the target current is the lightning current when it is determined that the short impulse front time, the effective current times and the half-peak time all meet the preset conditions. Among them, the identification accuracy can be improved by identifying the three parameters, reflecting the dynamic changes of the lightning current, and more comprehensively considering the characteristics of the lightning current. Compared with the existing technology of identifying the lightning current by the current peak value, it can reduce the misjudgment caused by interference currents such as overload current and short-circuit current.

[0015] Optionally, generating a current waveform according to the current data, analyzing the current waveform to obtain a short impulse front time, an effective current number and a current half-peak time specifically includes:

[0016] The current waveform is analyzed to obtain the time point T at which the current rises to 10% of the peak value within the target current cycle. 10% , the time point when the current rises to 90% of the peak value T 90% The time point T when the current rises to the peak value and then falls back to the half peak value 50% , the target current cycle is any current cycle of the target current;

[0017] Calculate the time point T when the current rises to 10% of the peak value10% and the time point T at which the current rises to 90% of the peak value 90% The difference between the short impulse front time T of the target current cycle is obtained. 1 ;

[0018] Count the number of effective current cycles collected within the preset time length to get the effective current count light , the effective current period refers to the current amplitude |I max |Greater than the minimum lightning current amplitude I MaxLight The current cycle;

[0019] Calculate the time point T when the current rises to 10% of the peak value 10% The time point T at which the current rises to the peak value and then falls back to the half peak value 50% The difference between the target current cycle and the half-peak time T is obtained. 2 .

[0020] By adopting the above technical solution, the steps of obtaining the short impulse front time, the effective current times and the current half-peak time are specifically disclosed, wherein the short impulse front time is the time point T when the current rises to 10% of the peak value. 10% The time point T when the current rises to 90% of the peak value 90% The effective current times are the effective current cycles collected within the preset time, and the current half-peak time is the time point T when the current rises to 10% of the peak value. 10% The time point T when the current rises to the peak value and then falls back to the half peak value 50% The difference.

[0021] Optionally, the preset condition is:

[0022] The short impact front time T 1 Falling within the preset lightning current short impulse front time interval;

[0023] The effective current times Count light Less than the preset effective current times threshold;

[0024] The current half-peak time T 2 Falls within the preset lightning current half-peak time interval.

[0025] By adopting the above technical solution, it is determined whether the target current is a lightning current by judging whether the short impulse front time falls within the short impulse front time interval of the lightning current and whether the current half-peak time falls within the half-peak time interval of the lightning current. By determining whether the effective current times are less than the preset effective current times threshold, it is prevented that the interference current causes misjudgment. Only when the preset conditions of the three parameters are met at the same time, it is finally determined that the target current is a lightning current, thereby more accurately identifying the lightning current.

[0026] Optionally, after generating lightning strike data according to the location information and the recorded wave data and sending the lightning strike data to a monitoring terminal, the method further includes:

[0027] estimating the impact of lightning strike on the feeder terminal according to the recorded data;

[0028] When the impact degree is greater than a preset threshold, formulating a maintenance plan for the feeder terminal;

[0029] Querying a preset database for a maintenance site closest to the location information;

[0030] Sending a detection and maintenance instruction with a maintenance plan to the maintenance site.

[0031] By adopting the above-mentioned technical solution, the present application estimates the impact of lightning strikes on the feeder terminal based on the recorded data. When the impact is greater than a preset threshold, a maintenance plan for the feeder terminal is formulated, and then the maintenance site closest to the location information is queried in the database, and a detection and maintenance instruction with the maintenance plan is sent to the maintenance site, so that the operation and maintenance personnel at the maintenance site can perform detection and maintenance according to the detection and maintenance instructions, thereby improving the efficiency of fault handling.

[0032] Optionally, estimating the impact of the lightning strike on the feeder terminal according to the recorded data specifically includes:

[0033] Determine the current peak value I of the target current according to the recorded data max and the total charge Q;

[0034] The influence of lightning strike on the feeder terminal is estimated according to the formula R=k*I_max+m*Q, where R is the influence, k is the weight of the current peak, and m is the weight of the total charge.

[0035] By adopting the above technical solution, the present application determines the current peak and total charge through recorded data, and calculates the impact of lightning strikes on feeder terminals through formulas, thereby more accurately quantifying the impact of lightning strikes and facilitating subsequent detection and maintenance instructions for lightning strikes.

[0036] Optionally, after sending the inspection and maintenance instruction with the maintenance plan to the maintenance site, the method further includes:

[0037] When the staff executes the maintenance plan, corresponding maintenance related information is obtained;

[0038] Determining an impact degree deviation according to the maintenance related information and the impact degree;

[0039] The preset threshold and weight parameters k, m are adjusted according to the impact degree deviation.

[0040] By adopting the above technical solution, this application obtains maintenance-related information after the staff executes the maintenance plan, determines the impact degree deviation based on the maintenance-related information and the estimated impact degree, and then adjusts the preset threshold and weight parameters, thereby continuously optimizing the estimation accuracy of the impact degree.

[0041] In the second aspect, the present application provides a lightning current identification and recording device, which is applied to a feeder device, wherein the feeder device includes a feeder terminal, a lightning arrester, a lightning arrester sensor, a bracket, a shell and a pole, wherein a wiring terminal of the lightning arrester is connected to the incoming line terminal of the pole, and the power-taking capacitors on both sides of the pole are assembled with the shell to form a vacuum circuit breaker, and the incoming line interface of the vacuum circuit breaker is connected to the feeder terminal, the lightning arrester sensor passes through the lightning arrester grounding section and is connected to the feeder terminal, the lightning arrester sensor and the lightning arrester are installed on the bracket, and the bracket is connected to the shell, and the device includes:

[0042] A current data acquisition module, used to acquire current data of a target current collected by a lightning arrester sensor;

[0043] A lightning current identification module, used to identify the target current according to the current data, and determine whether the target current is a lightning current;

[0044] A position information acquisition module, used to acquire the position information corresponding to the feeder terminal when it is determined that the target current is a lightning current;

[0045] A wave recording module, used for recording the target current to obtain wave recording data;

[0046] A data sending module is used to generate lightning strike data according to the position information and the recorded wave data and send the lightning strike data to a monitoring terminal.

[0047] In a third aspect, the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned lightning current identification and recording method when executing the computer program.

[0048] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the above-mentioned lightning current identification and recording method are implemented.

[0049] In summary, the present application includes at least one of the following beneficial technical effects:

[0050] 1. The present application forms a vacuum circuit breaker through a pole and a shell, collects voltage through a lightning arrester connected to the vacuum circuit breaker, obtains voltage data through a feeder terminal, collects current by setting a lightning arrester sensor at the grounding end of the lightning arrester, obtains current data through the feeder terminal, and determines whether the target current is a lightning strike current by identifying the current data. If it is determined to be a lightning strike current, the position information of the feeder terminal is obtained, and the target current is recorded to obtain recorded data, and then the lightning strike data is generated and sent to the monitoring terminal, so that the monitoring terminal can obtain the information of the lightning strike in the first time, and check the equipment struck by lightning in the first time according to the position information and recorded data, and solve the fault caused by lightning;

[0051] 2. The present application generates a current waveform through current data, analyzes the current waveform, obtains the short impulse front time, the effective current times and the half-peak time, and finally determines that the target current is the lightning current when it is determined that the short impulse front time, the effective current times and the half-peak time all meet the preset conditions. The recognition accuracy can be improved by identifying the three parameters, reflecting the dynamic changes of the lightning current, and taking the characteristics of the lightning current into more comprehensive consideration. Compared with the existing technology of identifying the lightning current by using the current peak value, it can reduce the misjudgment caused by interference currents such as overload current and short-circuit current;

[0052] 3. This application estimates the impact of lightning strikes on feeder terminals based on recorded data. When the impact is greater than a preset threshold, a maintenance plan for the feeder terminal is formulated. The maintenance site closest to the location information is then queried in the database, and a detection and maintenance instruction with the maintenance plan is sent to the maintenance site, so that the operation and maintenance personnel at the maintenance site can perform detection and maintenance according to the detection and maintenance instructions, thereby improving the efficiency of fault handling. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a structural schematic diagram of a feeder device according to an embodiment of the present application;

[0054] Figure 2 is an exemplary flow chart of the lightning current identification and recording method according to the embodiment of the present application;

[0055] Figure 3 is the standard lightning current waveform of the embodiment of the present application;

[0056] Figure 4is an exemplary flow chart of an embodiment of the present application that meets the preset conditions;

[0057] Figure 5 is an exemplary flow chart of sending a detection and maintenance instruction according to an embodiment of the present application;

[0058] Figure 6 This is a module schematic diagram of a lightning current identification and recording device according to an embodiment of the present application;

[0059] Figure 7 It is a diagram of the internal structure of the electronic device according to the embodiment of the present application. DETAILED DESCRIPTION

[0060] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to be used as limitations to the present application. As used in the specification and appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include plural expressions, unless there is a clear indication to the contrary in the context. It should also be understood that the term "and / or" used in the present application refers to any or all possible combinations comprising one or more listed items.

[0061] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more.

[0062] The feeder terminal of the distribution network is an electric power equipment with functions such as remote control, remote signaling, remote measurement and fault detection. It is widely used in the existing distribution system. Although the existing feeder terminal is equipped with a lightning protection device, it can only play a protective role. The monitoring personnel cannot know the specific location of the lightning strike in the first time, so the fault caused by lightning cannot be solved in the first time.

[0063] The present application provides a lightning current identification and recording method, device, equipment and medium. A vacuum circuit breaker is formed by a pole and a shell, voltage is collected by a lightning arrester connected to the vacuum circuit breaker, voltage data is obtained through a feeder terminal, current is collected by arranging a lightning arrester sensor at the grounding end of the lightning arrester, current data is obtained through the feeder terminal, and whether the target current is a lightning current is determined by identifying the current data. When it is determined to be a lightning current, the position information of the feeder terminal is obtained, and the target current is recorded to obtain recording data. Then, the lightning data is generated and sent to a monitoring terminal, so that the monitoring terminal can obtain the lightning information in the first time, and check the equipment struck by lightning in the first time according to the position information and the recording data, so as to solve the fault caused by lightning.

[0064] The embodiments of the present application are further described in detail below in conjunction with the drawings in the specification.

[0065] Reference Figure 1 , Figure 1 A schematic diagram of the structure of a feeder device according to an embodiment of the present application.

[0066] like Figure 1 As shown, the feeder equipment includes a feeder terminal, a lightning arrester, a lightning arrester sensor, a bracket, a shell and a pole. A wiring terminal of the lightning arrester is connected to the incoming line terminal of the pole. The power-taking capacitors on both sides of the pole are assembled with the shell to form a vacuum circuit breaker. The incoming line side interface of the vacuum circuit breaker is connected to the feeder terminal. The lightning arrester sensor passes through the lightning arrester grounding section and is connected to the feeder terminal. The lightning arrester sensor and the lightning arrester are installed on the bracket, and the bracket is connected to the shell.

[0067] Specifically, the arrester sensor is a Rogowski coil. In the above-mentioned feeder equipment, the lightning voltage is introduced through the arrester to obtain voltage data through the AD acquisition module of the feeder terminal, and the current data is obtained through the Rogowski coil through the AD acquisition module. The voltage data or current data is analyzed and processed through the feeder terminal, so as to identify the lightning current or lightning voltage, and then locate the specific location of the lightning strike, so as to solve the fault caused by the lightning as soon as possible.

[0068] Reference Figure 2 , Figure 2 It is an exemplary flow chart of the lightning current identification and recording method of the embodiment of the present application.

[0069] In a first aspect, the present application provides a lightning current identification and recording method, using the above-mentioned feeder device, the method comprises the following steps:

[0070] S110. Acquire current data of a target current collected by a lightning arrester sensor.

[0071] The current data of the target current refers to the current data when the arrester sensor collects the current signal.

[0072] S120: Identify the target current according to the current data to determine whether the target current is a lightning strike current.

[0073] Wherein, step S120 specifically includes:

[0074] S121. Generate a current waveform according to the current data, analyze the current waveform, and determine the short impulse front time, effective current times, and half peak time.

[0075] The target current cycle is any current cycle in the target current. The lightning current waveform is as follows: Figure 3 As shown, by analyzing the current waveform and then comparing it with the waveform of the standard lightning current, the lightning current can be identified.

[0076] Specifically, S121 includes the following steps:

[0077] S1211, analyzing the current waveform, obtaining the time point T when the current rises to 10% of the peak value within the target current cycle 10% , the time point when the current rises to 90% of the peak value T 90% The time point T when the current rises to the peak value and then falls back to the half peak value 50% ;

[0078] S1212, calculate the time point T when the current rises to 10% of the peak value 10% and the time point T at which the current rises to 90% of the peak value 90% The difference between the short impulse front time T of the target current cycle is obtained. 1 , T 1 =T 90% -T 10% ;

[0079] S1213, counting the number of effective current cycles collected within a preset time length, and obtaining the effective current number Count light , the effective current period refers to the current amplitude |I max |Greater than the minimum lightning current amplitude I MaxLight of the current cycle.

[0080] Specifically, the preset duration is 10 seconds.

[0081] S1214, calculate the time point T when the current rises to 10% of the peak value 10% The time point T when the current rises to the peak value and then falls back to the half peak value 50% The difference between the target current cycle and the half-peak time T is obtained. 2 .

[0082] S122. When it is determined that the short impulse front time, the effective current times and the half peak time all meet preset conditions, determine that the target current is the lightning strike current.

[0083] Among them, refer to Figure 4 , the preset conditions are: short impact front time T 1 Falling within the preset lightning current short impulse front time interval; effective current times Count light Less than the preset effective current times threshold; current half-peak time T 2 Falls within the preset lightning current half-peak time interval.

[0084] Specifically, the lightning current short impulse front time interval is 4us to 15us, the effective current number threshold is 5 times within 10ms, and the lightning current half-peak time interval is 300us to 370us.

[0085] It is understandable that only when the preset conditions of the three parameters are met at the same time, the target current is finally determined to be the lightning current, so that the lightning current can be identified more accurately and the characteristics of the lightning current can be more comprehensively considered. Compared with the existing technology of using current peak value to identify lightning current, it can reduce the misjudgment caused by interference currents such as overload current and short-circuit current.

[0086] S130. When it is determined that the target current is a lightning strike current, obtain position information corresponding to the feeder terminal.

[0087] In the case where the target current is determined to be a lightning current, the location of the lightning strike can be determined based on the location information of the feeder terminal where the target current is collected, thereby facilitating the handling of the fault.

[0088] S140, recording the target current to obtain recording data.

[0089] The target current is recorded according to the general format for the exchange of transient data in the power system, which is used to exchange transient data between power system devices. This format is widely used between protection and automation equipment in power systems to share and analyze data between devices.

[0090] S150: Generate lightning strike data based on the location information and the recorded wave data and send it to the monitoring terminal.

[0091] Through this, the monitoring terminal can receive lightning strike information and thus monitor the lightning strike.

[0092] In the above embodiment, the current data is identified to determine whether the target current is a lightning strike current. When it is determined to be a lightning strike current, the position information of the feeder terminal is obtained, and the target current is recorded to obtain the recorded data. Then, the lightning strike data is generated and sent to the monitoring terminal, so that the monitoring terminal can obtain the lightning strike information as soon as possible, and check the equipment struck by lightning as soon as possible according to the position information and the recorded data, so as to solve the fault caused by lightning.

[0093] It is worth noting that the above embodiment identifies lightning current by collecting current data. In other embodiments, lightning voltage can also be identified by voltage data collected by the lightning arrester, thereby identifying lightning strikes.

[0094] In some embodiments, reference Figure 5 After step 150, the method further includes:

[0095] S160. Estimate the impact of lightning strikes on feeder terminals based on the recorded data.

[0096] Wherein, step S160 includes:

[0097] S161, determine the current peak value I of the target current according to the recorded data max And the total charge Q.

[0098] The total charge amount can be obtained according to the target current and time.

[0099] S162. Estimate the impact of lightning strike on the feeder terminal according to the formula R=k*I_max+m*Q.

[0100] Among them, R is the influence degree, k is the weight of the current peak, and m is the weight of the total charge.

[0101] Through this, the impact of lightning current on the feeder terminal is quantified.

[0102] S170: When the impact degree is greater than a preset threshold, formulate a maintenance plan for the feeder terminal.

[0103] Among them, when the impact degree reaches a preset threshold, it is determined that the lightning current is large and is likely to affect the feeder terminal, so a maintenance plan for the feeder terminal is formulated, which includes inspection, repair, replacement, etc.

[0104] S180: Query a preset database for a maintenance site closest to the location information.

[0105] Among them, the preset database is a database of feeding equipment maintenance sites, which stores the location information of each maintenance site. After determining the location information of the lightning strike, a maintenance site closest to the lightning strike location can be matched by querying in the preset database to facilitate timely maintenance.

[0106] S190: Send a detection and maintenance instruction with a maintenance plan to a maintenance site.

[0107] Through this, maintenance personnel at the maintenance site can perform inspection and maintenance on the feeding equipment according to the maintenance plan in the inspection and maintenance instructions, so as to quickly deal with possible fault problems.

[0108] Optionally, in some embodiments, the method further comprises:

[0109] S200: After the staff executes the maintenance plan, corresponding maintenance related information is obtained.

[0110] Among them, maintenance-related information includes the degree of change in the status of the equipment before and after it is struck by lightning, stability, etc.

[0111] S210: Determine the impact degree deviation according to the maintenance-related information and the impact degree.

[0112] The maintenance-related information during maintenance can be compared with the estimated impact level to determine the deviation between the estimated impact level and the actual impact level of the feeding equipment, thereby determining the impact level deviation.

[0113] It is understandable that the relevant parameter data in the maintenance-related information such as the degree of state change and stability need to be quantified so that they can be compared with the degree of impact.

[0114] S220: Adjust the preset threshold and weight parameters according to the impact degree deviation.

[0115] Through this, the preset thresholds and weight parameters are constantly revised, so that the subsequent estimated impact is more accurate and it is more necessary to execute the subsequent maintenance plan for the feeder terminal.

[0116] In the second aspect, the present application provides a lightning current identification and recording device, which uses the above feeder equipment. The lightning current identification and recording device of the present application is described below in combination with the above lightning current identification and recording method. Figure 6 , Figure 6 It is a module schematic diagram of the lightning current identification and recording device according to an embodiment of the present application.

[0117] A lightning current identification and recording device, comprising:

[0118] The current data acquisition module 610 is used to acquire the current data of the target current collected by the arrester sensor;

[0119] A lightning current identification module 620, configured to identify the target current according to the current data and determine whether the target current is a lightning current;

[0120] A position information acquisition module 630, configured to acquire position information corresponding to the feeder terminal when it is determined that the target current is a lightning current;

[0121] A wave recording module 640 is used to record the target current to obtain wave recording data;

[0122] The data sending module 650 is used to generate lightning strike data according to the location information and the recorded wave data and send the lightning strike data to the monitoring terminal.

[0123] In one embodiment, the present application provides an electronic device, which is applied to the above-mentioned feeding device. The electronic device may be a server, and its internal structure diagram may be as shown in FIG. Figure 7 As shown. The electronic device includes a processor, a memory and a network interface connected through a system bus. Among them, the processor of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the electronic device is used to store data. The network interface of the electronic device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a method for identifying and recording lightning current is implemented.

[0124] Those skilled in the art will understand that Figure 7 The structure shown in the figure is merely a block diagram of a partial structure related to the scheme of the present application, and does not constitute a limitation on the electronic device to which the scheme of the present application is applied. The specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0125] In one embodiment, an electronic device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above method embodiments when executing the computer program.

[0126] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the above-mentioned computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0127] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lightning current identification and recording method, applied to feeder equipment, characterized in that: The feeder equipment comprises a feeder terminal, a lightning arrester, a lightning arrester sensor, a bracket, a shell and a pole, a wiring terminal of the lightning arrester is connected to the incoming line terminal of the pole, the power-taking capacitors on both sides of the pole are assembled with the shell to form a vacuum circuit breaker, the incoming line interface of the vacuum circuit breaker is connected to the feeder terminal, the lightning arrester sensor passes through the lightning arrester grounding section and is connected to the feeder terminal, the lightning arrester sensor and the lightning arrester are installed on the bracket, and the bracket is connected to the shell, and the method comprises the following steps: Acquiring current data of a target current collected by the arrester sensor; Identify the target current according to the current data to determine whether the target current is a lightning current; When it is determined that the target current is a lightning current, obtaining position information corresponding to the feeder terminal; Recording the target current to obtain recorded data; Generate lightning strike data according to the location information and the recorded wave data and send the data to a monitoring terminal; The step of identifying the target current according to the current data and determining whether the target current is a lightning current specifically includes: Generate a current waveform according to the current data, analyze the current waveform to obtain a short impulse front time, an effective current number and a current half-peak time; When it is determined that the short impulse front time, the effective current times and the current half-peak time all meet preset conditions, it is determined that the target current is a lightning strike current.

2. The lightning current identification and recording method according to claim 1, characterized in that: The generating of a current waveform according to the current data and analyzing the current waveform to obtain a short impulse front time, an effective current number and a current half-peak time specifically include: The current waveform is analyzed to obtain the time point T at which the current rises to 10% of the peak value within the target current cycle. 10% , the time point when the current rises to 90% of the peak value T 90% The time point T when the current rises to the peak value and then falls back to the half peak value 50% , the target current cycle is any current cycle of the target current; Calculate the time point T when the current rises to 10% of the peak value 10% and the time point T at which the current rises to 90% of the peak value 90% The difference between the target current cycle and the short impact front time T1 is obtained; Count the number of effective current cycles collected within the preset time length to get the effective current count light , the effective current period refers to the current amplitude |I max |Greater than the minimum lightning current amplitude I MaxLight The current cycle; Calculate the time point T when the current rises to 10% of the peak value 10% The time point T at which the current rises to the peak value and then falls back to the half peak value 50% The difference between and is used to obtain the current half-peak time T2 of the target current cycle.

3. The lightning current identification and recording method according to claim 1, characterized in that: The preset conditions are: The short impulse front time T1 falls within a preset lightning current short impulse front time interval; The effective current times Count light Less than the preset effective current times threshold; The current half-peak time T2 falls within a preset lightning current half-peak time interval.

4. The lightning current identification and recording method according to claim 1, characterized in that: After generating lightning strike data according to the location information and the recorded wave data and sending the lightning strike data to the monitoring terminal, the method further includes: estimating the impact of lightning strike on the feeder terminal according to the recorded data; When the impact degree is greater than a preset threshold, formulating a maintenance plan for the feeder terminal; Querying a preset database for a maintenance site closest to the location information; Sending a detection and maintenance instruction with a maintenance plan to the maintenance site.

5. The lightning current identification and recording method according to claim 4, characterized in that: The estimating the influence degree of the lightning strike on the feeder terminal according to the recorded wave data specifically includes: Determine the current peak value I of the target current according to the recorded data max and the total charge Q; The influence of lightning strike on the feeder terminal is estimated according to the formula R=k*I_max+m*Q, where R is the influence, k is the weight of the current peak, and m is the weight of the total charge.

6. The lightning current identification and recording method according to claim 5, characterized in that: After sending the inspection and maintenance instruction with the maintenance plan to the maintenance site, the method further includes: When the staff executes the maintenance plan, corresponding maintenance related information is obtained; Determining an impact degree deviation according to the maintenance related information and the impact degree; The preset threshold and weight parameters k, m are adjusted according to the impact degree deviation.

7. A lightning current identification and recording device, applied to feeder equipment, characterized in that: The feeder equipment includes a feeder terminal, a lightning arrester, a lightning arrester sensor, a bracket, a shell and a pole, a wiring terminal of the lightning arrester is connected to the incoming line terminal of the pole, the power-taking capacitors on both sides of the pole are assembled with the shell to form a vacuum circuit breaker, the incoming line interface of the vacuum circuit breaker is connected to the feeder terminal, the lightning arrester sensor passes through the lightning arrester grounding section and is connected to the feeder terminal, the lightning arrester sensor and the lightning arrester are installed on the bracket, and the bracket is connected to the shell, and the device includes: A current data acquisition module, used to acquire current data of a target current collected by a lightning arrester sensor; A lightning current identification module, used to identify the target current according to the current data, and determine whether the target current is a lightning current; A position information acquisition module, used to acquire the position information corresponding to the feeder terminal when it is determined that the target current is a lightning current; A wave recording module, used for recording the target current to obtain wave recording data; A data sending module, used for generating lightning strike data according to the position information and the recorded wave data and sending the lightning strike data to a monitoring terminal; The lightning current identification module specifically performs the following steps: Generate a current waveform according to the current data, analyze the current waveform to obtain a short impulse front time, an effective current number and a current half-peak time; When it is determined that the short impulse front time, the effective current times and the current half-peak time all meet preset conditions, it is determined that the target current is a lightning strike current.

8. An electronic device, characterized in that: The invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the lightning current identification and recording method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the lightning current identification and recording method according to any one of claims 1 to 6 are implemented.

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