Intelligent online monitoring method and system for lightning arrester and storage medium

Abstract

The invention provides an intelligent online monitoring method and system for a lightning arrester and a storage medium, and the method comprises the steps: obtaining a historical overvoltage event record set of the lightning arrester, the historical overvoltage event record set comprises a plurality of historical overvoltage event records, and each historical overvoltage event record comprises a breakdown voltage and a recording moment; determining a breakdown voltage change straight line according to the breakdown voltage and the recording time corresponding to the plurality of historical overvoltage event records; determining a prediction moment of the preset breakdown voltage according to the breakdown voltage change straight line; the preset breakdown voltage is used for representing the breakdown voltage when the lightning arrester needs to be replaced; acquiring a current moment; determining a first residual life of the lightning arrester according to the prediction moment and the current moment; determining a first aging degree value of the lightning arrester according to the first residual life; and determining a first maintenance strategy corresponding to the first aging degree value. According to the invention, the aging detection efficiency of the lightning arrester and the maintenance efficiency of a power system can be improved.

Description

Technical Field

[0001] This application relates to the field of electronic technology, or the field of signal processing technology, or the field of power technology, and particularly relates to an intelligent on-line monitoring method, system and storage medium for lightning arresters. Background Art

[0002] With the rapid development of electronic information technology, there are more and more types of lightning arresters. In practical applications, if a lightning arrester ages, it will seriously affect the performance of the lightning arrester. In severe cases, it may cause the lightning arrester to fail to operate, and then lead to safety accidents. Moreover, the detection of lightning arrester aging often needs to be completed manually. However, there are a large number of lightning arresters on the power system, but the human resources are insufficient. Therefore, how to improve the aging detection efficiency of lightning arresters to achieve the maintenance efficiency of the power system is an urgent problem to be solved. Summary of the Invention

[0003] Embodiments of this application provide an intelligent on-line monitoring method, system and storage medium for lightning arresters, which can improve the aging detection efficiency of lightning arresters and the maintenance efficiency of the power system.

[0004] In a first aspect, embodiments of this application provide an intelligent on-line monitoring method for lightning arresters, which is applied to an electronic device. The method includes: Obtain a historical overvoltage event record set of the lightning arrester. The historical overvoltage event record set includes a plurality of historical overvoltage event records. Each historical overvoltage event record includes a breakdown voltage and a recording time. The historical overvoltage event record indicates that the line voltage of the lightning arrester exceeds the corresponding breakdown voltage to form a low-impedance path, and instantaneously discharges the overcurrent to the ground; Determine a breakdown voltage change line according to the breakdown voltages and recording times corresponding to the plurality of historical overvoltage event records. The horizontal axis of the breakdown voltage change line is time and the vertical axis is the breakdown voltage; Determine a prediction time of a preset breakdown voltage according to the breakdown voltage change line; the preset breakdown voltage is used to represent the breakdown voltage when the lightning arrester needs to be replaced; Obtain the current time; Determine a first remaining life of the lightning arrester according to the prediction time and the current time; Determine a first aging degree value according to the first remaining life; Determine a first maintenance strategy corresponding to the first aging degree value, so as to maintain the lightning arrester according to the first maintenance strategy.

[0005] Second aspect, an embodiment of the present application provides a smart online monitoring system for a lightning arrester, which is applied to an electronic device. The smart online monitoring system for a lightning arrester includes: a first acquisition unit, a first determination unit, a second acquisition unit, and a second determination unit, where The first acquisition unit is configured to acquire a historical overvoltage event record set of the lightning arrester. The historical overvoltage event record set includes a plurality of historical overvoltage event records. Each historical overvoltage event record includes a breakdown voltage and a recording time. The historical overvoltage event record indicates that the line voltage of the lightning arrester exceeds the corresponding breakdown voltage to form a low-impedance path, and instantaneously discharges the overcurrent to the ground; The first determination unit is configured to determine a breakdown voltage change straight line according to the breakdown voltages and recording times corresponding to the plurality of historical overvoltage event records. The horizontal axis of the breakdown voltage change straight line is time and the vertical axis is the breakdown voltage; and determine a prediction time of a preset breakdown voltage according to the breakdown voltage change straight line. The preset breakdown voltage is used to represent the breakdown voltage when the lightning arrester needs to be replaced; The second acquisition unit is configured to acquire the current time; The second determination unit is configured to determine a first remaining life of the lightning arrester according to the prediction time and the current time; determine a first aging degree value of the lightning arrester according to the first remaining life; and determine a first maintenance strategy corresponding to the first aging degree value, so as to maintain the lightning arrester according to the first maintenance strategy.

[0006] Third aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, a communication interface, and one or more programs. Among them, the above one or more programs are stored in the above memory and are configured to be executed by the above processor. The above programs include instructions for executing the steps in the first aspect of the embodiment of the present application.

[0007] Fourth aspect, an embodiment of the present application provides a computer-readable storage medium. Among them, the computer-readable storage medium stores a computer program for electronic data exchange. The computer program enables a computer to execute some or all of the steps described in the first aspect of the embodiment of the present application.

[0008] Fifth aspect, an embodiment of the present application provides a computer program product. Among them, the computer program product includes a non-transitory computer-readable storage medium storing a computer program. The computer program is operable to enable a computer to execute some or all of the steps described in the first aspect of the embodiment of the present application. The computer program product can be a software installation package.

[0009] Implementing the embodiments of the present application has the following beneficial effects: It can be seen that the intelligent online monitoring method, system and storage medium of the lightning arrester described in the embodiments of the present application are applied to an electronic device to obtain a historical overvoltage event record set of the lightning arrester. The historical overvoltage event record set includes multiple historical overvoltage event records, and each historical overvoltage event record includes a breakdown voltage and a recording time. The historical overvoltage event record indicates that the line voltage of the lightning arrester exceeds the corresponding breakdown voltage to form a low-impedance path, instantaneously discharging the overcurrent to the ground. Determine the breakdown voltage change straight line according to the breakdown voltage and recording time corresponding to multiple historical overvoltage event records. The horizontal axis of the breakdown voltage change straight line is time and the vertical axis is the breakdown voltage. Determine the prediction time of the preset breakdown voltage according to the breakdown voltage change straight line; the preset breakdown voltage is used to represent the breakdown voltage when the lightning arrester needs to be replaced. Obtain the current time, and determine the first remaining life of the lightning arrester according to the prediction time and the current time. Determine the first aging degree value corresponding to the first remaining life, and determine the first maintenance strategy corresponding to the first aging degree value, so as to maintain the lightning arrester according to the first maintenance strategy. Therefore, it is possible to predict the change of the remaining life of the lightning arrester based on the breakdown voltage and recording time of the historical overvoltage event record, evaluate the aging degree of the lightning arrester based on the change of the remaining life, and determine the corresponding maintenance strategy based on the aging degree. It is equivalent to being able to perform intelligent online monitoring on the lightning arresters in the power system. Furthermore, the aging detection efficiency of the lightning arrester and the maintenance efficiency of the power system can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0011] Figure 1 is a flowchart showing a method for intelligent online monitoring of a lightning arrester provided by an embodiment of the present application; Figure 2 is a structural diagram of an electronic device provided by an embodiment of the present application; Figure 3 is a schematic diagram of a scenario demonstration of a method for intelligent online monitoring of a lightning arrester provided by an embodiment of the present application; Figure 4 is a schematic diagram of a scenario demonstration of another method for intelligent online monitoring of a lightning arrester provided by an embodiment of the present application; Figure 5 is a schematic diagram of a scenario demonstration of yet another method for intelligent online monitoring of a lightning arrester provided by an embodiment of the present application; Figure 6It is a schematic structural diagram of another electronic device provided by an embodiment of the present application; Figure 7 It is a schematic structural diagram of yet another electronic device provided by an embodiment of the present application; Figure 8 It is a functional unit composition block diagram of a lightning arrester intelligent on-line monitoring system provided by an embodiment of the present application. Detailed implementation manners

[0012] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may also include unlisted steps or units in a possible example, or other steps or units inherent to these processes, methods, products or devices in a possible example.

[0013] Referring to "embodiment" herein means that a specific feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0014] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0015] Among them, the electronic device may include any device in the power system that is capable of monitoring lightning arresters. For example, the electronic device may include at least one of the following: intelligent lightning arresters, switch cabinets, transformers, energy storage devices, etc., which are not limited herein.

[0016] Among them, the protected device may include any device in the power system that requires lightning arrester protection. The protected device may include at least one of the following: switch cabinets, transformers, energy storage devices, charging piles, base stations, etc., which are not limited herein.

[0017] Please refer to Figure 1 , Figure 1It is a schematic flowchart of an intelligent on-line monitoring method for a lightning arrester provided by an embodiment of the present application, which is applied to an electronic device. The intelligent on-line monitoring method for the lightning arrester includes: 101. Obtain a historical overvoltage event record set of the lightning arrester. The historical overvoltage event record set includes a plurality of historical overvoltage event records. Each historical overvoltage event record includes a breakdown voltage and a recording time. The historical overvoltage event record indicates that the line voltage of the lightning arrester exceeds the corresponding breakdown voltage to form a low-impedance path, and instantaneously discharges the overcurrent to the ground.

[0018] Among them, the breakdown voltage of the lightning arrester can be understood as: under specific conditions, the voltage value when the lightning arrester starts to conduct current.

[0019] Among them, as Figure 2 shown, the electronic device may include a lightning arrester. For example, the lightning arrester may be a component or a module of the electronic device.

[0020] Among them, as Figure 3 shown, the electronic device and the lightning arrester may be two independent devices, that is, the electronic device may also be communicatively connected to the lightning arrester. The electronic device can monitor the working state of the lightning arrester.

[0021] Among them, as Figure 4 shown, the electronic device, the lightning arrester, and the protected device are communicatively connected. The lightning arrester is used to protect the protected device. The electronic device may be connected in parallel with the lightning arrester, and the lightning arrester may also be connected in parallel with the protected device.

[0022] In the embodiment of the present application, after each overvoltage event occurs, an overvoltage event record will be generated. An overvoltage event can be understood as an event in which the line voltage of the lightning arrester exceeds the corresponding breakdown voltage to form a low-impedance path and instantaneously discharges the overcurrent to the ground. The historical overvoltage event record is used to record the overvoltage event.

[0023] In a specific implementation, the historical overvoltage event record set may include a plurality of historical overvoltage event records. Each historical overvoltage event record includes a breakdown voltage and a recording time. The line voltage of the lightning arrester exceeds the corresponding breakdown voltage to form a low-impedance path, and instantaneously discharges the overcurrent to the ground.

[0024] Among them, the recording time can be understood as a moment of the overvoltage event. For example, the starting moment of the overvoltage event, specifically, it can be the moment when the line voltage exceeds the corresponding breakdown voltage, that is, the starting moment when the low-impedance path is formed.

[0025] In the embodiment of the present application, the historical overvoltage event record set of the lightning arrester can be obtained. The historical overvoltage event record set can be pre-stored in the cloud or locally.

[0026] In specific implementation, a historical overvoltage event record set of the lightning arrester can be obtained at a set time interval, and the set time interval can be preset or the system default. For example, the set time interval can be 1 month, 3 months, 6 months, etc.

[0027] 102. Determine a breakdown voltage change line based on the breakdown voltage and the recording time corresponding to the multiple historical overvoltage event records. The horizontal axis of the breakdown voltage change line is time and the vertical axis is the breakdown voltage.

[0028] In the embodiment of the present application, a breakdown voltage change line can be determined based on the breakdown voltage and the recording time corresponding to multiple historical overvoltage event records. Specifically, each historical overvoltage event record corresponds to a breakdown voltage and a recording time, then a breakdown voltage and a recording time corresponding to each historical overvoltage event record can be regarded as a coordinate point, and multiple historical overvoltage event records can be regarded as multiple coordinate points. These multiple coordinate points are also mapped to a coordinate system. The horizontal axis of this coordinate system is time and the vertical axis is the breakdown voltage. Then, a straight line fitting can be performed based on the multiple coordinate points to obtain the breakdown voltage change line. The horizontal axis of the breakdown voltage change line is time and the vertical axis is the breakdown voltage. The breakdown voltage change line reflects the law of the breakdown voltage changing with time.

[0029] 103. Determine the prediction time of the preset breakdown voltage according to the breakdown voltage change line; the preset breakdown voltage is used to represent the breakdown voltage when the lightning arrester needs to be replaced.

[0030] Among them, the preset breakdown voltage can be preset or the system default. The preset breakdown voltage can be understood as the breakdown voltage when the lightning arrester meets the preset conditions. The preset conditions can be preset or the system default. For example, the preset conditions can be understood as the lightning arrester being scrapped, or the performance of the lightning arrester having problems, or the lightning arrester aging to a certain extent. The preset breakdown voltage can be used to represent the breakdown voltage when the lightning arrester needs to be replaced.

[0031] In specific implementation, the prediction time of the preset breakdown voltage can be determined according to the breakdown voltage change line. For example, the breakdown voltage change line can be expressed as f(x, y)=ax + b, where x represents time, y represents the breakdown voltage, and a and b represent constants. Then, when f(x, y) is known, the corresponding x can be deduced, and this x is the prediction time.

[0032] In practice, arrester aging is primarily caused by internal moisture, valve aging, and poor sealing. For example, internal moisture can degrade insulation performance, valve aging can affect its nonlinear characteristics, and poor sealing can lead to internal moisture or contamination. Aging arresters can also reduce their breakdown voltage. When the breakdown voltage drops to a certain level (preset breakdown voltage), the arrester's performance likely fails to meet the requirements of the protected equipment, or the arrester has aged to the point of being scrapped.

[0033] 104. Get the current time.

[0034] In the specific implementation, the current time can be obtained.

[0035] 105. Determine a first remaining life of the arrester according to the predicted time and the current time.

[0036] In a specific implementation, the time difference between the predicted moment and the current moment can be calculated, and the time difference is the first remaining life, that is, the first remaining life = predicted moment - current moment.

[0037] 106. Determine a first aging degree value of the arrester according to the first remaining life.

[0038] In an embodiment of the present application, a mapping relationship between a preset remaining life and an aging degree value can be pre-stored. Based on the mapping relationship, a first aging degree value of the arrester corresponding to the first remaining life can be determined. The value range of the first aging degree value can be preset or set by the system default. For example, the value range of the first aging degree value can be 0-1, or the value range of the first aging degree value can be 0-100. The larger the first aging degree value, the greater the aging, and conversely, the smaller the first aging degree value, the less aging.

[0039] 107. Determine a first maintenance strategy corresponding to the first aging degree value, and maintain the lightning arrester according to the first maintenance strategy.

[0040] In a specific implementation, a mapping relationship between preset aging degree values and maintenance strategies can be pre-stored, and then, a first maintenance strategy corresponding to a first aging degree value can be determined based on the mapping relationship, so that the arrester can be maintained according to the first maintenance strategy. In this way, the aging degree of the arrester can be evaluated based on the change in the remaining life, and the corresponding maintenance strategy can be determined based on the aging degree, which is equivalent to performing intelligent online monitoring of the arrester in the power system. Furthermore, the aging detection efficiency of the arrester can be improved to achieve maintenance efficiency of the power system.

[0041] Optionally, the above step 107, determining the first maintenance strategy corresponding to the first aging degree value, can be implemented as follows: When the first aging degree value is greater than or equal to a first preset threshold, determining that the first maintenance strategy includes prompting to replace the lightning arrester; When the first aging degree value is less than the first preset threshold and greater than or equal to the second preset threshold, determining that the first maintenance strategy includes prompting a manual maintenance operation on the lightning arrester; and the second preset threshold is less than the first preset threshold; When the first aging degree value is less than the second preset threshold, determining that the first maintenance strategy includes controlling the lightning arrester to continue working.

[0042] The first preset threshold and the second preset threshold can both be preset or set by system default. The second preset threshold is smaller than the first preset threshold.

[0043] In an embodiment of the present application, when the first aging degree value is greater than or equal to the first preset threshold value, it indicates that the performance of the lightning arrester is likely to fail to meet the requirements of the protected equipment, or that the aging degree of the lightning arrester has reached the scrap level. In this case, it can be determined that the first maintenance strategy includes a prompt to replace the lightning arrester, that is, a prompt to replace the lightning arrester with a new one.

[0044] Correspondingly, when the first aging degree value is less than the first preset threshold value and greater than or equal to the second preset threshold value, it means that the performance of the lightning arrester meets the requirements of the protected equipment but not much, or, it means that although the aging degree of the lightning arrester has not reached the scrap level, it is not far from the scrap level. In this case, it can be determined that the first maintenance strategy includes a prompt to perform manual maintenance operations on the lightning arrester, thereby deeply ensuring the safety of the lightning arrester.

[0045] Correspondingly, when the first aging degree value is less than the second preset threshold value, it means that the performance of the lightning arrester is more than the requirements of the protected equipment, or that the aging degree of the lightning arrester is far from the scrap degree, then it can be determined that the first maintenance strategy includes controlling the lightning arrester to continue working, that is, the lightning arrester has good performance, and it can be directly determined that the lightning arrester can continue to work, that is, no manual maintenance is required, that is, the lightning arrester is temporarily not manually repaired. Of course, when the first aging degree value is less than the second preset threshold value, the first maintenance strategy can also be scheduled maintenance, for example, scheduled maintenance based on the target interval duration, specifically, the difference between the second preset threshold value and the first aging degree value can be determined to obtain the target difference, and the mapping relationship between the preset difference and the interval duration can be pre-stored, that is, the target interval duration corresponding to the target difference can be determined based on the mapping relationship, that is, the target interval duration can be counted down, and at the end of the countdown, manual maintenance can be prompted, thereby ensuring the intelligence of the lightning arrester maintenance.

[0046] Optionally, each historical overvoltage event record corresponds to a set of environmental parameters. For step 102 above, determining the breakdown voltage change line according to the breakdown voltages and recording times corresponding to the multiple historical overvoltage event records can be implemented as follows: Determine corresponding environmental influence coefficients according to the set of environmental parameters corresponding to each historical overvoltage event record, obtaining a plurality of environmental influence coefficients; Determine calibration parameters corresponding to each environmental influence coefficient among the plurality of environmental influence coefficients, obtaining a plurality of calibration parameters; Calibrate the breakdown voltages corresponding to the multiple historical overvoltage event records according to the plurality of calibration parameters, obtaining a plurality of target breakdown voltages; Determine the breakdown voltage change line according to the plurality of target breakdown voltages and the recording time corresponding to each target breakdown voltage.

[0047] In specific implementation, the breakdown voltage of the lightning arrester is affected by the environment. For example, dust concentration, temperature, and humidity. Specifically, for example, an increase in dust concentration will cause the breakdown voltage of the lightning arrester to decrease because dust particles can capture electrons and photons, hinder gap discharge. At the same time, they may also collide and ionize with electrons and have a photoelectric effect on the surface. These particles will also distort the electric field, which is conducive to the occurrence of discharge. Another example is that an increase in temperature will cause the breakdown voltage of the lightning arrester to drop because an increase in temperature will cause a change in the performance of the insulating material inside the lightning arrester, resulting in a decrease in its breakdown voltage. Another example is that humidity has a significant impact on the breakdown voltage of the lightning arrester. When the air humidity increases, water molecules in the air will absorb the electric field energy and inhibit the occurrence of the ionization process, thereby reducing the breakdown voltage of the air gap.

[0048] In the embodiments of the present application, each historical overvoltage event record corresponds to a set of environmental parameters, where the environmental parameters may include at least one environmental parameter, and the environmental parameters may include at least one of the following: temperature, humidity, dust concentration, etc., which are not limited herein.

[0049] Among them, the electronic device may include an environmental sensor, and the environmental sensor can be used to collect the set of environmental parameters of the lightning arrester. The set of environmental parameters may include at least one environmental parameter, and each environmental parameter may include at least one environmental parameter.

[0050] In specific implementation, corresponding environmental influence coefficients can be determined according to the set of environmental parameters corresponding to each historical overvoltage event record, obtaining a plurality of environmental influence coefficients. For example, a mapping relationship between a preset set of environmental parameters and environmental influence coefficients can be stored in advance. Furthermore, based on this mapping relationship, the environmental influence coefficient corresponding to each set of environmental parameters can be determined, obtaining a plurality of environmental influence coefficients.

[0051] Among them, the environmental impact coefficient can be used to characterize the impact of the environment on the aging assessment of the lightning arrester.

[0052] In the embodiments of the present application, the aging of the lightning arrester can be understood as: the phenomenon that the performance of the lightning arrester gradually decreases over time.

[0053] In practical applications, the aging of the lightning arrester will cause its breakdown voltage to decrease. Specifically, for example, when the lightning arrester is under the action of power frequency voltage for a long time, the internal varistor is prone to aging and moisture absorption, resulting in a decrease in insulation performance, thereby reducing the breakdown voltage.

[0054] Among them, since different environments have different effects on the aging of the lightning arrester, furthermore, the mapping relationship between the preset environmental impact coefficient and the calibration parameter can be stored in advance. Furthermore, based on this mapping relationship, the calibration parameter corresponding to each environmental impact coefficient among multiple environmental impact coefficients can be determined, and multiple calibration parameters can be obtained. Among them, the value range of the calibration parameter can be set in advance or default by the system. For example, the value parameter of the calibration parameter can be -0.1 to 0.1. The calibration parameter can be used to exclude the influence of environmental factors on the breakdown voltage. Furthermore, to ensure the influence of environmental factors on the aging degree assessment, the breakdown voltages corresponding to multiple historical overvoltage event records are calibrated according to multiple calibration parameters to obtain multiple target breakdown voltages, that is, target breakdown voltage = breakdown voltage × (1 + calibration parameter). Finally, the breakdown voltage change line can be determined according to multiple target breakdown voltages and the recording time corresponding to each target breakdown voltage. Specifically, the target breakdown voltage and the recording time corresponding to each historical overvoltage event record can be regarded as a coordinate point, and multiple historical overvoltage event records can be regarded as multiple coordinate points. These multiple coordinate points are also mapped to a coordinate system. The horizontal axis of this coordinate system is time and the vertical axis is the breakdown voltage. Then, a straight line fitting can be performed based on multiple coordinate points to obtain the breakdown voltage change line. The horizontal axis of the breakdown voltage change line is time and the vertical axis is the breakdown voltage. The breakdown voltage change line reflects the law of the breakdown voltage changing with time.

[0055] In this example, the influence degree of environmental factors (such as dust concentration, temperature, humidity) on the breakdown voltage assessment is fully considered, and corresponding calibration is performed based on the influence degree. Thus, the influence of environmental factors on the breakdown voltage can be excluded, so that the depth of the breakdown voltage assessment matches the aging depth of the lightning arrester itself. Thus, it helps to make the assessment of the remaining life more in line with the characteristics of the lightning arrester itself. Furthermore, the aging degree of the lightning arrester can be accurately evaluated based on the change of the remaining life, and the corresponding accurate maintenance strategy can be determined based on the aging degree. It is equivalent to being able to perform intelligent online monitoring on the lightning arresters in the power system. Furthermore, the aging detection efficiency of the lightning arrester can be improved to achieve the maintenance efficiency of the power system.

[0056] Optionally, the first set of environmental parameters includes a first floating dust concentration, a first temperature, and a first humidity; the first set of environmental parameters is the set of environmental parameters corresponding to the first historical overvoltage event record, and the first historical overvoltage event record is any one of the multiple historical overvoltage event records; Determining corresponding environmental impact coefficients according to the set of environmental parameters corresponding to each historical overvoltage event record, obtaining a plurality of environmental impact coefficients, including: Determining a first reference environmental impact coefficient corresponding to the first floating dust concentration; Determining a second reference environmental impact coefficient corresponding to the first temperature; Determining a third reference environmental impact coefficient corresponding to the first humidity; Determining a first weight, a second weight, and a third weight according to the first reference environmental impact coefficient, the second reference environmental impact coefficient, and the third reference environmental impact coefficient, and the sum of the first weight, the second weight, and the third weight is 1; Determining the environmental impact coefficient corresponding to the first set of environmental parameters according to the first reference environmental impact coefficient, the second reference environmental impact coefficient, the third reference environmental impact coefficient, the first weight, the second weight, and the third weight.

[0057] In the embodiment of the present application, taking the first historical overvoltage event record as an example, the first historical overvoltage event record is any one of the multiple historical overvoltage event records, the first set of environmental parameters is the set of environmental parameters corresponding to the first historical overvoltage event record, and the first set of environmental parameters may include a first floating dust concentration, a first temperature, and a first humidity.

[0058] Among them, the floating dust concentration can be collected by a floating dust concentration detection sensor, and the floating dust concentration detection sensor can include at least one of the following sensors for collection: a float sensor, a capacitive sensor, an ultrasonic sensor, a TSP (total suspended particulate matter) sensor, a laser dust sensor, an infrared dust sensor, etc., which is not limited here.

[0059] Among them, the temperature can be collected by a temperature sensor, and the humidity can be collected by a humidity sensor.

[0060] Among them, as Figure 5 shown, the electronic device may include: a floating dust concentration detection sensor, a temperature sensor, and a humidity sensor. The electronic device may be communicatively connected to the lightning arrester, and the floating dust concentration detection sensor, the temperature sensor, and the humidity sensor may monitor the environmental changes of the lightning arrester.

[0061] Among them, as Figure 6As shown, the electronic device may include a dust concentration detection sensor, a temperature sensor, a humidity sensor, and a lightning arrester. The dust concentration detection sensor, the temperature sensor, the humidity sensor, and the lightning arrester can all be a module of the electronic device. The dust concentration detection sensor, the temperature sensor, and the humidity sensor can monitor the environmental changes of the lightning arrester.

[0062] In a specific implementation, for example, the dust concentration detection sensor can collect the environmental dust concentration of the lightning arrester based on a first preset time interval, the temperature sensor can collect the environmental temperature of the lightning arrester based on a second preset time interval, and the humidity sensor can collect the environmental humidity of the lightning arrester based on a third preset time interval. The first preset time interval, the second preset time interval, and the third preset time interval can all be preset in advance or be the system default.

[0063] In a specific implementation, the mapping relationship between the preset dust concentration and the environmental impact coefficient can be stored in advance. Furthermore, the first reference environmental impact coefficient corresponding to the first dust concentration can be determined based on this mapping relationship. Correspondingly, the mapping relationship between the preset temperature and the environmental impact coefficient can also be stored in advance. Furthermore, the second reference environmental impact coefficient corresponding to the first temperature can be determined based on this mapping relationship. Correspondingly, the mapping relationship between the preset humidity and the environmental impact coefficient can also be stored in advance. Furthermore, the third reference environmental impact coefficient corresponding to the first humidity can be determined based on this mapping relationship.

[0064] Among them, the first reference environmental impact coefficient is used to characterize the influence degree of the dust concentration on the breakdown voltage evaluation, the second reference environmental impact coefficient is used to characterize the influence degree of the temperature on the breakdown voltage evaluation, and the third reference environmental impact coefficient is used to characterize the influence degree of the humidity on the breakdown voltage evaluation. The first reference environmental impact coefficient, the second reference environmental impact coefficient, and the third reference environmental impact coefficient can be set within the same value range. For example, between 0 and 1.

[0065] Next, the first weight, the second weight, and the third weight can be determined based on the first reference environmental impact coefficient, the second reference environmental impact coefficient, and the third reference environmental impact coefficient. The sum of the first weight, the second weight, and the third weight is 1. Specifically, the sum of the first reference environmental impact coefficient, the second reference environmental impact coefficient, and the third reference environmental impact coefficient can be calculated to obtain the total environmental impact coefficient, that is, the first reference environmental impact coefficient + the second reference environmental impact coefficient + the third reference environmental impact coefficient = the total environmental impact coefficient. The first weight = the first reference environmental impact coefficient / the total environmental impact coefficient, the second weight = the second reference environmental impact coefficient / the total environmental impact coefficient, and the third weight = the third reference environmental impact coefficient / the total environmental impact coefficient. Based on this method, it can be ensured that the greater the environmental impact coefficient, the greater the corresponding weight. Then, the environmental impact coefficient corresponding to the first set of environmental parameters can be determined based on the first reference environmental impact coefficient, the second reference environmental impact coefficient, the third reference environmental impact coefficient, the first weight, the second weight, and the third weight. Then, the environmental impact coefficient corresponding to the first set of environmental parameters = the first weight × the first reference environmental impact coefficient + the second weight × the second reference environmental impact coefficient + the third weight × the third reference environmental impact coefficient. In this way, the influence degree of environmental factors (such as floating dust concentration, temperature, and humidity) on the breakdown voltage assessment can be fully considered. Furthermore, it helps to perform corresponding calibration based on the influence degree, so that the influence of environmental factors on the breakdown voltage can be excluded, making the depth of the breakdown voltage assessment match the aging depth of the arrester itself. Thus, it helps to make the assessment of the remaining life more in line with the characteristics of the arrester itself, and the aging degree of the arrester can be accurately evaluated based on the change of the remaining life. Based on the aging degree, corresponding precise maintenance strategies can be determined, which is equivalent to being able to perform intelligent on-line monitoring on the arresters in the power system. Furthermore, the aging detection efficiency of the arresters can be improved to achieve the maintenance efficiency of the power system.

[0066] Optionally, each historical overvoltage event record in the multiple historical overvoltage event records corresponds to a floating dust concentration, a temperature, and a humidity. The floating dust concentration is within a preset floating dust concentration range, the temperature is within a preset temperature range, and the humidity is within a preset humidity range.

[0067] In the embodiments of the present application, the preset floating dust concentration range, the preset temperature range, and the preset humidity range can all be set in advance or be the system default.

[0068] Among them, if the floating dust concentration is within the preset floating dust concentration range, it means that the influence of the floating dust concentration on the aging assessment is very small and can almost be ignored. Correspondingly, if the temperature is within the preset temperature range, it means that the influence of the temperature on the aging assessment is very small and can almost be ignored. Correspondingly, if the humidity is within the preset humidity range, it means that the influence of the humidity on the aging assessment is very small and can almost be ignored.

[0069] In specific implementation, each historical overvoltage event record among multiple historical overvoltage event records corresponds to a dust concentration, a temperature, and a humidity. When the dust concentration is within a preset dust concentration range, the temperature is within a preset temperature range, and the humidity is within a preset humidity range, it indicates that the impact of the environment on aging assessment is very small and can almost be ignored. Thus, it can ensure that the impact of environmental factors (such as dust concentration, temperature, and humidity) on the breakdown voltage assessment is excluded from the aging assessment, which helps to make the assessment of the remaining life more in line with the characteristics of the arrester itself. Furthermore, based on the change in the remaining life, the aging degree of the arrester can be accurately evaluated, and corresponding precise maintenance strategies can be determined based on the aging degree. This is equivalent to being able to perform intelligent online monitoring on the arresters in the power system, and further, the aging detection efficiency of the arresters can be improved to achieve the maintenance efficiency of the power system.

[0070] Optionally, the following steps may also be included: Obtain the first breakdown voltage and the first recording moment of the most recent historical overvoltage event record; Determine the first difference between the first breakdown voltage and the preset breakdown voltage; Determine the first time duration between the current moment and the first recording moment; When the first difference is less than or equal to the preset difference, and / or, when the first time duration is greater than or equal to the preset time duration, execute the step of obtaining the historical overvoltage event record set of the arrester; When the first difference is greater than the preset difference and the first time duration is less than the preset time duration, execute the step of controlling the arrester to continue working.

[0071] Wherein, the preset difference is greater than 0.

[0072] Wherein, the preset difference can be set in advance or be the system default, and the preset time duration can also be set in advance or be the system default.

[0073] In specific implementation, the first breakdown voltage and the first recording moment of the most recent historical overvoltage event record can be obtained, and the first difference between the first breakdown voltage and the preset breakdown voltage can also be determined, that is, the first difference = the first breakdown voltage - the preset breakdown voltage. Correspondingly, the first time duration between the current moment and the first recording moment can also be determined, that is, the first time duration = the current moment - the first recording moment.

[0074] Wherein, if the first difference is greater than the preset difference, it indicates that the performance of the arrester meets the requirements of the protected equipment to a greater extent. On the contrary, if the first difference is less than or equal to the preset difference, the performance of the arrester meets the requirements of the protected equipment but not to a large extent.

[0075] Among them, if the first duration is less than the preset duration, it indicates that the distance from the last historical overvoltage event is relatively close, that is, the lightning arrester has performed lightning protection operations in a short period. On the contrary, if the first duration is greater than or equal to the preset duration, it indicates that the distance from the last historical overvoltage event is relatively far, that is, the lightning arrester has not performed lightning protection operations for a long time.

[0076] Next, when the first difference is less than or equal to the preset difference, and / or, when the first duration is greater than or equal to the preset duration, the step of obtaining the historical overvoltage event record set of the lightning arrester can be executed. That is, when the performance of the lightning arrester meets the requirements of the protected equipment but not much, and / or, when the lightning arrester has performed lightning protection operations in a short period, the step of obtaining the historical overvoltage event record set of the lightning arrester needs to be executed. Thus, further predict the change of the remaining life of the lightning arrester based on the breakdown voltage and the recording time of the historical overvoltage event record, and evaluate the aging degree of the lightning arrester based on the change of the remaining life. Determine the corresponding maintenance strategy based on the aging degree, which is equivalent to being able to perform intelligent online monitoring on the lightning arrester in the power system. Furthermore, the aging detection efficiency of the lightning arrester can be improved to achieve the maintenance efficiency of the power system.

[0077] Correspondingly, when the first difference is greater than the preset difference and the first duration is less than the preset duration, the step of controlling the lightning arrester to continue working can be executed. That is, when the performance of the lightning arrester meets the requirements of the protected equipment more and the lightning arrester has performed lightning protection operations in a short period, the step of obtaining the historical overvoltage event record set of the lightning arrester is not executed, which can reduce power consumption and also improve the intelligence of the online monitoring of the lightning arrester.

[0078] Optionally, the lightning arrester is connected in parallel with the protected equipment; the lightning arrester is used to protect the protected equipment; the following steps can also be included: Obtain the first device parameter of the protected equipment; Determine the preset breakdown voltage corresponding to the first device parameter.

[0079] In the embodiment of the present application, the first device parameter may include at least one of the following: device model, device load, device working stability parameter, device configuration parameter, etc., which is not limited herein.

[0080] In a specific implementation, the lightning arrester is connected in parallel with the protected device, and the lightning arrester is used to protect the protected device. Specifically, the first device parameters of the protected device can be obtained, and the mapping relationship between the preset device parameters and the breakdown voltage can be pre-stored. Furthermore, the preset breakdown voltage corresponding to the first device parameters can be determined based on this mapping relationship. In this way, the aging degree depth of the lightning arrester can be made related to the characteristic depth of the protected device, realizing the personalized management of the lightning arrester. That is, it is not necessarily required to replace the lightning arrester until it is completely scrapped. Instead, when the performance of the lightning arrester ages to not meet the requirements of the protected device, a replacement is timely reminded. Thus, the intelligence of lightning arrester monitoring is ensured, which helps to realize the maintenance intelligence of the power system.

[0081] It can be seen that the intelligent online monitoring method of the lightning arrester described in the embodiments of the present application is applied to an electronic device, obtaining a historical overvoltage event record set of the lightning arrester. The historical overvoltage event record set includes multiple historical overvoltage event records. Each historical overvoltage event record includes a breakdown voltage and a recording time. The historical overvoltage event record indicates that the line voltage of the lightning arrester exceeds the corresponding breakdown voltage to form a low-impedance path, instantaneously discharging the overcurrent to the ground. The breakdown voltage change straight line is determined according to the breakdown voltage and the recording time corresponding to the multiple historical overvoltage event records. The horizontal axis of the breakdown voltage change straight line is time and the vertical axis is the breakdown voltage. The prediction time of the preset breakdown voltage is determined according to the breakdown voltage change straight line. The preset breakdown voltage is used to represent the breakdown voltage when the lightning arrester needs to be replaced. The current time is obtained, and the first remaining life of the lightning arrester is determined according to the prediction time and the current time. The first aging degree value of the lightning arrester is determined according to the first remaining life, and the first maintenance strategy corresponding to the first aging degree value is determined to maintain the lightning arrester according to the first maintenance strategy. Thus, the change of the remaining life of the lightning arrester can be predicted based on the breakdown voltage and the recording time of the historical overvoltage event record, and the aging degree of the lightning arrester can be evaluated based on the change of the remaining life. The corresponding maintenance strategy is determined based on the aging degree, which is equivalent to being able to perform intelligent online monitoring on the lightning arrester in the power system. Furthermore, the aging detection efficiency of the lightning arrester can be improved, as well as the maintenance efficiency of the power system.

[0082] Please refer to Figure 7 , Figure 7 FIG. is a schematic structural diagram of another electronic device provided by the embodiments of the present application. The electronic device includes a processor, a memory, a communication interface, and one or more programs. Among them, the above one or more programs are stored in the above memory and are configured to be executed by the above processor. In the embodiments of the present application, the above program includes instructions for performing the following steps: Obtain a historical overvoltage event record set of the lightning arrester. The historical overvoltage event record set includes multiple historical overvoltage event records. Each historical overvoltage event record includes a breakdown voltage and a recording time. The historical overvoltage event record indicates that the line voltage of the lightning arrester exceeds the corresponding breakdown voltage to form a low-impedance path and instantaneously discharge the overcurrent to the ground. Determine a breakdown voltage change straight line according to the breakdown voltages and recording times corresponding to the multiple historical overvoltage event records. The horizontal axis of the breakdown voltage change straight line is time and the vertical axis is the breakdown voltage. Determine the prediction time of a preset breakdown voltage according to the breakdown voltage change straight line. The preset breakdown voltage is used to represent the breakdown voltage when the lightning arrester needs to be replaced. Obtain the current time. Determine the first remaining life of the lightning arrester according to the prediction time and the current time. Determine the first aging degree value of the lightning arrester according to the first remaining life. Determine the first maintenance strategy corresponding to the first aging degree value to maintain the lightning arrester according to the first maintenance strategy.

[0083] Optionally, in terms of determining the first maintenance strategy corresponding to the first aging degree value, the above program includes instructions for performing the following steps: When the first aging degree value is greater than or equal to a first preset threshold, determine that the first maintenance strategy includes prompting to replace the lightning arrester. When the first aging degree value is less than the first preset threshold and greater than or equal to the second preset threshold, determine that the first maintenance strategy includes prompting to perform manual maintenance operations on the lightning arrester. The second preset threshold is less than the first preset threshold. When the first aging degree value is less than the second preset threshold, determine that the first maintenance strategy includes controlling the lightning arrester to continue working.

[0084] Optionally, each historical overvoltage event record corresponds to an environmental parameter set. In terms of determining the breakdown voltage change straight line according to the breakdown voltages and recording times corresponding to the multiple historical overvoltage event records, the above program includes instructions for performing the following steps: Determine the corresponding environmental impact coefficient according to the environmental parameter set corresponding to each historical overvoltage event record to obtain multiple environmental impact coefficients. Determine the calibration parameter corresponding to each environmental impact coefficient among the multiple environmental impact coefficients to obtain multiple calibration parameters. Calibrate the breakdown voltages corresponding to the multiple historical overvoltage event records according to the multiple calibration parameters to obtain multiple target breakdown voltages. Determine the breakdown voltage change line based on the multiple target breakdown voltages and the recording times corresponding to each target breakdown voltage.

[0085] Optionally, the first set of environmental parameters includes a first dust concentration, a first temperature, and a first humidity; the first set of environmental parameters is the set of environmental parameters corresponding to the first historical overvoltage event record, and the first historical overvoltage event record is any one of the multiple historical overvoltage event records. In terms of determining the corresponding environmental impact coefficients according to the sets of environmental parameters corresponding to each historical overvoltage event record to obtain multiple environmental impact coefficients, the above program includes instructions for performing the following steps: Determine a first reference environmental impact coefficient corresponding to the first dust concentration. Determine a second reference environmental impact coefficient corresponding to the first temperature. Determine a third reference environmental impact coefficient corresponding to the first humidity. Determine a first weight, a second weight, and a third weight according to the first reference environmental impact coefficient, the second reference environmental impact coefficient, and the third reference environmental impact coefficient, and the sum of the first weight, the second weight, and the third weight is 1. Determine the environmental impact coefficient corresponding to the first set of environmental parameters according to the first reference environmental impact coefficient, the second reference environmental impact coefficient, the third reference environmental impact coefficient, the first weight, the second weight, and the third weight.

[0086] Optionally, each historical overvoltage event record among the multiple historical overvoltage event records corresponds to a dust concentration, a temperature, and a humidity, the dust concentration is within a preset dust concentration range, the temperature is within a preset temperature range, and the humidity is within a preset humidity range.

[0087] Optionally, the above program further includes instructions for performing the following steps: Obtain the first breakdown voltage and the first recording time of the most recent historical overvoltage event record. Determine a first difference between the first breakdown voltage and the preset breakdown voltage. Determine a first duration between the current time and the first recording time. When the first difference is less than or equal to a preset difference, and / or, the first duration is greater than or equal to a preset duration, perform the step of obtaining the historical overvoltage event record set of the arrester. When the first difference is greater than the preset difference and the first duration is less than the preset duration, perform the step of controlling the arrester to continue working.

[0088] Optionally, the lightning arrester is connected in parallel with the protected device; the lightning arrester is used to protect the protected device; The above program further includes instructions for performing the following steps: Obtain a first device parameter of the protected device; Determine the preset breakdown voltage corresponding to the first device parameter.

[0089] It can be seen that for the electronic device described in the embodiment of the present application, a historical overvoltage event record set of the lightning arrester is obtained. The historical overvoltage event record set includes multiple historical overvoltage event records. Each historical overvoltage event record includes a breakdown voltage and a recording time. The historical overvoltage event record indicates that the line voltage of the lightning arrester exceeds the corresponding breakdown voltage to form a low-impedance path, instantaneously discharging the overcurrent to the ground. Determine the breakdown voltage change straight line according to the breakdown voltage and the recording time corresponding to multiple historical overvoltage event records. The horizontal axis of the breakdown voltage change straight line is time and the vertical axis is the breakdown voltage. Determine the prediction time of the preset breakdown voltage according to the breakdown voltage change straight line; the preset breakdown voltage is used to characterize the breakdown voltage when the lightning arrester needs to be replaced. Obtain the current time, and determine the first remaining life of the lightning arrester according to the prediction time and the current time. Determine the first aging degree value corresponding to the first remaining life, and determine the first maintenance strategy corresponding to the first aging degree value, so as to maintain the lightning arrester according to the first maintenance strategy. Therefore, it is possible to predict the change of the remaining life of the lightning arrester based on the breakdown voltage and the recording time of the historical overvoltage event record, and evaluate the aging degree of the lightning arrester based on the change of the remaining life. Determine the corresponding maintenance strategy based on the aging degree, which is equivalent to being able to perform intelligent on-line monitoring of the lightning arrester in the power system. Furthermore, the aging detection efficiency of the lightning arrester and the maintenance efficiency of the power system can be improved.

[0090] Figure 8 It is a functional unit composition block diagram of a lightning arrester intelligent on-line monitoring system 800 involved in the embodiment of the present application. The lightning arrester intelligent on-line monitoring system 800 is applied to an electronic device. The lightning arrester intelligent on-line monitoring system 800 includes: a first acquisition unit 801, a first determination unit 802, a second acquisition unit 803, and a second determination unit 804, where The first acquisition unit 801 is used to obtain a historical overvoltage event record set of the lightning arrester. The historical overvoltage event record set includes multiple historical overvoltage event records. Each historical overvoltage event record includes a breakdown voltage and a recording time. The historical overvoltage event record indicates that the line voltage of the lightning arrester exceeds the corresponding breakdown voltage to form a low-impedance path, instantaneously discharging the overcurrent to the ground; The first determination unit 802 is configured to determine a breakdown voltage change line according to the breakdown voltages and the recording times corresponding to the multiple historical overvoltage event records, where the horizontal axis of the breakdown voltage change line is time and the vertical axis is the breakdown voltage; and determine a prediction time of a preset breakdown voltage according to the breakdown voltage change line; the preset breakdown voltage is used to characterize the breakdown voltage when the lightning arrester needs to be replaced; The second acquisition unit 803 is configured to acquire the current time; The second determination unit 804 is configured to determine a first remaining life of the lightning arrester according to the prediction time and the current time; determine a first aging degree value of the lightning arrester according to the first remaining life; and determine a first maintenance strategy corresponding to the first aging degree value, so as to maintain the lightning arrester according to the first maintenance strategy.

[0091] Optionally, in terms of determining the first maintenance strategy corresponding to the first aging degree value, the second determination unit 804 is specifically configured to: When the first aging degree value is greater than or equal to a first preset threshold, determine that the first maintenance strategy includes prompting to replace the lightning arrester; When the first aging degree value is less than the first preset threshold and greater than or equal to the second preset threshold, determine that the first maintenance strategy includes prompting to perform a manual inspection operation on the lightning arrester; the second preset threshold is less than the first preset threshold; When the first aging degree value is less than the second preset threshold, determine that the first maintenance strategy includes controlling the lightning arrester to continue to operate.

[0092] Optionally, each historical overvoltage event record corresponds to an environmental parameter set. In terms of determining the breakdown voltage change line according to the breakdown voltages and the recording times corresponding to the multiple historical overvoltage event records, the first determination unit 801 is specifically configured to: Determine corresponding environmental influence coefficients according to the environmental parameter sets corresponding to each historical overvoltage event record, and obtain a plurality of environmental influence coefficients; Determine calibration parameters corresponding to each environmental influence coefficient among the plurality of environmental influence coefficients, and obtain a plurality of calibration parameters; Calibrate the breakdown voltages corresponding to the multiple historical overvoltage event records according to the plurality of calibration parameters, and obtain a plurality of target breakdown voltages; Determine the breakdown voltage change line according to the plurality of target breakdown voltages and the recording time corresponding to each target breakdown voltage.

[0093] Optionally, the first set of environmental parameters includes the first floating dust concentration, the first temperature, and the first humidity; the first set of environmental parameters is the set of environmental parameters corresponding to the first historical overvoltage event record, and the first historical overvoltage event record is any one of the multiple historical overvoltage event records; In terms of determining the corresponding environmental impact coefficient according to the set of environmental parameters corresponding to each historical overvoltage event record to obtain multiple environmental impact coefficients, the first determining unit 801 is specifically configured to: Determine a first reference environmental impact coefficient corresponding to the first floating dust concentration; Determine a second reference environmental impact coefficient corresponding to the first temperature; Determine a third reference environmental impact coefficient corresponding to the first humidity; Determine a first weight, a second weight, and a third weight according to the first reference environmental impact coefficient, the second reference environmental impact coefficient, and the third reference environmental impact coefficient, and the sum of the first weight, the second weight, and the third weight is 1; Determine the environmental impact coefficient corresponding to the first set of environmental parameters according to the first reference environmental impact coefficient, the second reference environmental impact coefficient, the third reference environmental impact coefficient, the first weight, the second weight, and the third weight.

[0094] Optionally, each historical overvoltage event record in the multiple historical overvoltage event records corresponds to a floating dust concentration, a temperature, and a humidity, the floating dust concentration is within a preset floating dust concentration range, the temperature is within a preset temperature range, and the humidity is within a preset humidity range.

[0095] Optionally, the arrester intelligent online monitoring system 800 is further specifically configured to: Obtain the first breakdown voltage and the first recording time of the most recent historical overvoltage event record; Determine a first difference between the first breakdown voltage and the preset breakdown voltage; Determine a first duration between the current time and the first recording time; When the first difference is less than or equal to the preset difference, and / or, the first duration is greater than or equal to the preset duration, execute the step of obtaining the historical overvoltage event record set of the arrester; When the first difference is greater than the preset difference and the first duration is less than the preset duration, execute the step of controlling the arrester to continue to work.

[0096] Optionally, the arrester is connected in parallel with the protected device; the arrester is used to protect the protected device; The arrester intelligent online monitoring system 800 is further specifically configured to: Obtain the first device parameter of the protected device; Determine the preset breakdown voltage corresponding to the first device parameter.

[0097] It can be seen that the intelligent on-line monitoring system for lightning arresters described in the embodiments of the present application is applied to electronic devices, obtains the historical over-voltage event record set of the lightning arrester, the historical over-voltage event record set includes multiple historical over-voltage event records, each historical over-voltage event record includes a breakdown voltage and a recording time, and the historical over-voltage event record represents that the line voltage of the lightning arrester exceeds the corresponding breakdown voltage to form a low-impedance path and instantaneously discharge the over-current to the ground. Determine the breakdown voltage change straight line according to the breakdown voltage and the recording time corresponding to multiple historical over-voltage event records. The horizontal axis of the breakdown voltage change straight line is time and the vertical axis is the breakdown voltage. Determine the prediction time of the preset breakdown voltage according to the breakdown voltage change straight line; the preset breakdown voltage is used to represent the breakdown voltage when the lightning arrester needs to be replaced, obtain the current time, determine the first remaining life of the lightning arrester according to the prediction time and the current time, determine the first aging degree value corresponding to the first remaining life, and determine the first maintenance strategy corresponding to the first aging degree value, so as to maintain the lightning arrester according to the first maintenance strategy. Therefore, the remaining life change of the lightning arrester can be predicted based on the breakdown voltage and the recording time of the historical over-voltage event record, and the aging degree of the lightning arrester can be evaluated based on the remaining life change, and the corresponding maintenance strategy can be determined based on the aging degree. It is equivalent to being able to perform intelligent on-line monitoring on the lightning arresters in the power system, and further, the aging detection efficiency of the lightning arresters can be improved, and the maintenance efficiency of the power system can be improved.

[0098] It can be understood that the functions of the various program modules of the intelligent on-line monitoring system for lightning arresters in this embodiment can be specifically implemented according to the methods in the above method embodiments, and the specific implementation process can refer to the relevant descriptions of the above method embodiments, which will not be elaborated here.

[0099] The embodiments of the present application also provide a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables the computer to execute part or all of the steps of any method recorded in the above method embodiments, and the above computer includes an electronic device.

[0100] The embodiments of the present application also provide a computer program product. The above computer program product includes a non-transitory computer-readable storage medium storing a computer program. The above computer program is operable to enable the computer to execute part or all of the steps of any method recorded in the above method embodiments. The computer program product can be a software installation package, and the above computer includes an electronic device.

[0101] It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that this application is not limited by the described action sequence, because according to this application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0102] In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0103] In several embodiments provided by this application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the above division of units is only a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces. The indirect coupling or communication connection of devices or units can be in an electrical or other form.

[0104] The units described as separate components above may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0105] In addition, in each embodiment of this application, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0106] If the above integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on such an understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the above methods in various embodiments of this application. The aforementioned memory includes: various media such as USB flash drives, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), external hard drives, magnetic disks, or optical discs that can store program codes.

[0107] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program. This program can be stored in a computer-readable memory, and the memory can include: flash drives, read-only memories (English: Read-Only Memory, abbreviated as: ROM), random access memories (English: Random Access Memory, abbreviated as: RAM), magnetic disks, or optical discs, etc.

[0108] The above has introduced the embodiments of this application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application; at the same time, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to this application.

Claims

1. An intelligent on-line monitoring method for lightning arresters, characterized in that, Applied to an electronic device, the method includes: Obtain a historical overvoltage event record set of a lightning arrester, where the historical overvoltage event record set includes multiple historical overvoltage event records, and each historical overvoltage event record includes a breakdown voltage and a recording time. The historical overvoltage event record indicates that the line voltage of the lightning arrester exceeds the corresponding breakdown voltage to form a low-impedance path and instantaneously discharge the overcurrent to the ground; Determine a breakdown voltage change line according to the breakdown voltages and recording times corresponding to the multiple historical overvoltage event records. The horizontal axis of the breakdown voltage change line is time and the vertical axis is the breakdown voltage; Determine a prediction time of a preset breakdown voltage according to the breakdown voltage change line; the preset breakdown voltage is used to represent the breakdown voltage when the lightning arrester needs to be replaced; Obtain the current time; Determine a first remaining life of the lightning arrester according to the prediction time and the current time; Determine a first aging degree value of the lightning arrester according to the first remaining life; Determine a first maintenance strategy corresponding to the first aging degree value to maintain the lightning arrester according to the first maintenance strategy.

2. The method according to claim 1, wherein The determining the first maintenance strategy corresponding to the first aging degree value includes: When the first aging degree value is greater than or equal to a first preset threshold, determine that the first maintenance strategy includes prompting to replace the lightning arrester; When the first aging degree value is less than the first preset threshold and greater than or equal to the second preset threshold, determine that the first maintenance strategy includes prompting to perform manual maintenance operations on the lightning arrester; the second preset threshold is less than the first preset threshold; When the first aging degree value is less than the second preset threshold, determine that the first maintenance strategy includes controlling the lightning arrester to continue working.

3. The method according to claim 1 or 2, characterized in that, Each historical overvoltage event record corresponds to an environmental parameter set. The determining the breakdown voltage change line according to the breakdown voltages and recording times corresponding to the multiple historical overvoltage event records includes: Determine corresponding environmental impact coefficients according to the environmental parameter sets corresponding to each historical overvoltage event record to obtain multiple environmental impact coefficients; Determine calibration parameters corresponding to each environmental impact coefficient among the multiple environmental impact coefficients to obtain multiple calibration parameters; Calibrate the breakdown voltages corresponding to the multiple historical overvoltage event records according to the multiple calibration parameters to obtain multiple target breakdown voltages; Determine the breakdown voltage change line according to the multiple target breakdown voltages and the recording time corresponding to each target breakdown voltage.

4. The method according to claim 3, wherein The first environmental parameter set includes a first floating dust concentration, a first temperature, and a first humidity; the first environmental parameter set is the environmental parameter set corresponding to the first historical overvoltage event record, and the first historical overvoltage event record is any one of the multiple historical overvoltage event records; The determining the corresponding environmental impact coefficients according to the environmental parameter sets corresponding to each historical overvoltage event record to obtain multiple environmental impact coefficients includes: Determine a first reference environmental impact coefficient corresponding to the first floating dust concentration; Determine a second reference environmental impact coefficient corresponding to the first temperature; Determine the third reference environmental impact coefficient corresponding to the first humidity; Determine a first weight, a second weight, and a third weight according to the first reference environmental impact coefficient, the second reference environmental impact coefficient, and the third reference environmental impact coefficient, and the sum of the first weight, the second weight, and the third weight is 1; Determine the environmental impact coefficient corresponding to the first environmental parameter set according to the first reference environmental impact coefficient, the second reference environmental impact coefficient, the third reference environmental impact coefficient, the first weight, the second weight, and the third weight.

5. The method according to claim 1 or 2, characterized in that, Each historical overvoltage event record in the multiple historical overvoltage event records corresponds to a dust concentration, a temperature, and a humidity, the dust concentration is within a preset dust concentration range, the temperature is within a preset temperature range, and the humidity is within a preset humidity range.

6. The method according to claim 1 or 2, characterized in that, The method further includes: Obtain the first breakdown voltage and the first recording time of the most recent historical overvoltage event record; Determine the first difference between the first breakdown voltage and the preset breakdown voltage; Determine the first duration between the current time and the first recording time; When the first difference is less than or equal to the preset difference, and / or, the first duration is greater than or equal to the preset duration, execute the step of obtaining the historical overvoltage event record set of the lightning arrester; When the first difference is greater than the preset difference and the first duration is less than the preset duration, execute the step of controlling the lightning arrester to continue working.

7. The method according to claim 1 or 2, characterized in that, The lightning arrester is connected in parallel with the protected device; The lightning arrester is used to protect the protected device; The method further includes: Obtain the first device parameter of the protected device; Determine the preset breakdown voltage corresponding to the first device parameter.

8. An intelligent on-line monitoring system for lightning arresters, characterized in that, Applied to an electronic device, the lightning arrester intelligent online monitoring system includes: a first acquisition unit, a first determination unit, a second acquisition unit, and a second determination unit, where The first acquisition unit is configured to acquire a historical overvoltage event record set of a lightning arrester, the historical overvoltage event record set includes multiple historical overvoltage event records, each historical overvoltage event record includes a breakdown voltage and a recording time, and the historical overvoltage event record indicates that the line voltage of the lightning arrester exceeds the corresponding breakdown voltage to form a low-impedance path and instantaneously discharge the overcurrent to the ground; The first determination unit is configured to determine a breakdown voltage change straight line according to the breakdown voltages and recording times corresponding to the multiple historical overvoltage event records, the horizontal axis of the breakdown voltage change straight line is time and the vertical axis is the breakdown voltage; and determine the prediction time of the preset breakdown voltage according to the breakdown voltage change straight line; the preset breakdown voltage is used to represent the breakdown voltage when the lightning arrester needs to be replaced; The second acquisition unit is configured to acquire the current time; The second determination unit is configured to determine a first remaining life of the lightning arrester according to the prediction time and the current time; determine a first aging degree value of the lightning arrester according to the first remaining life; and determine a first maintenance strategy corresponding to the first aging degree value, so as to maintain the lightning arrester according to the first maintenance strategy.

9. An electronic device, characterized in that, It includes a processor and a memory. The memory is used to store one or more programs and is configured to be executed by the processor. The programs include instructions for performing the steps in the method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, A computer program for electronic data exchange is stored, wherein the computer program causes a computer to execute the method according to any one of claims 1-7.

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