Rapid positioning device, method and equipment for cable lightning stroke interruption

Abstract

The invention discloses a quick positioning device, method and equipment for cable lightning stroke interruption, and belongs to the technical field of electric power facilities. The device comprises a voltage difference acquisition module used for acquiring voltage difference data between two adjacent fixed positions through a voltage sensor; the lightning stroke interruption determination module is used for determining that a lightning stroke interruption event exists under the condition that the power transmission interruption event is detected by the power transmission monitoring task; and the lightning stroke position determination module is used for determining the fixed position of the voltage sensor of which the voltage difference data is greater than a preset voltage difference threshold as a lightning stroke interruption position under the condition of determining that the lightning stroke interruption event exists. According to the technical scheme, under the condition that the power transmission interruption event is detected, the fixed position of the voltage sensor with the voltage difference data larger than the preset voltage difference threshold value is determined as the lightning stroke interruption position, rapid and accurate positioning of a lightning stroke interruption fault point can be achieved, maintenance measures can be taken in time, and power supply can be recovered in time.

Description

Technical Field

[0001] The present application belongs to the technical field of electric power facilities, and specifically relates to a device, method and equipment for quickly locating a cable interruption caused by lightning strike. Background Art

[0002] Cable lines responsible for long-distance power transmission usually cross areas with complex terrain such as grasslands, mountains and hills. Due to the wide coverage area, often spanning tens or even hundreds of kilometers, it is difficult to take strict and comprehensive lightning protection measures for the entire cable line. This makes such cable lines more vulnerable to lightning strikes.

[0003] Lightning strikes can cause an instantaneous increase in the current inside the cable, which may cause cable overload or short circuit, or even interruption of cable power transmission, thereby affecting the stability and reliability of the power supply system, resulting in large-scale power outages, and causing serious inconvenience and huge economic losses to industrial production, residents' lives, and the normal operation of public facilities. It may also cause permanent damage to power grid equipment and increase maintenance and replacement costs.

[0004] Therefore, how to automatically identify cable lightning interruption events and quickly and accurately locate the lightning interruption location so as to perform maintenance in a timely manner is an urgent problem that needs to be solved by personnel in this field. Summary of the invention

[0005] The embodiments of the present application provide a device, method and equipment for quickly locating a lightning-broken cable, with the aim of achieving rapid and accurate positioning of the lightning-broken fault point, thereby facilitating timely maintenance measures and restoring power supply.

[0006] In a first aspect, an embodiment of the present application provides a device for quickly locating a cable interruption caused by lightning, the device comprising:

[0007] A voltage difference acquisition module is used to acquire voltage difference data between two adjacent fixed positions through a voltage sensor fixed to a position close to the ground on a cable rack;

[0008] A power transmission monitoring module, configured to start a power transmission monitoring task when the voltage difference data is greater than a preset voltage difference threshold;

[0009] A lightning interruption determination module, configured to determine that a lightning interruption event exists when the power transmission monitoring task detects a power transmission interruption event;

[0010] The lightning strike position determination module is used to determine the fixed position of the voltage sensor whose voltage difference data is greater than a preset voltage difference threshold as the lightning strike interruption position when it is determined that a lightning interruption event exists.

[0011] In a second aspect, an embodiment of the present application provides a method for quickly locating a cable interruption caused by lightning, the method comprising:

[0012] The voltage difference acquisition module acquires voltage difference data between two adjacent fixed positions through a voltage sensor fixed to a position close to the ground of the cable rack;

[0013] When the voltage difference data is greater than a preset voltage difference threshold, the power transmission monitoring task is started by the power transmission monitoring module;

[0014] When the power transmission monitoring task detects a power transmission interruption event, the lightning interruption determination module determines that there is a lightning interruption event;

[0015] When it is determined that there is a lightning interruption event, the lightning strike position determination module determines the fixed position of the voltage sensor where the voltage difference data is greater than a preset voltage difference threshold as the lightning interruption position.

[0016] In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0017] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0018] In a fifth aspect, an embodiment of the present application provides a chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect.

[0019] In the embodiment of the present application, the voltage difference acquisition module is used to obtain the voltage difference data between two adjacent fixed positions through a voltage sensor fixed to a cable rack near the ground; the power transmission monitoring module is used to start the power transmission monitoring task when the voltage difference data is greater than a preset voltage difference threshold; the lightning interruption determination module is used to determine that there is a lightning interruption event when the power transmission monitoring task detects a power interruption event; the lightning strike position determination module is used to determine the fixed position of the voltage sensor with the voltage difference data greater than the preset voltage difference threshold as the lightning interruption position when it is determined that there is a lightning interruption event. The above-mentioned rapid positioning device for cable lightning interruption can realize rapid and accurate positioning of the lightning interruption fault point by determining the fixed position of the voltage sensor with the voltage difference data greater than the preset voltage difference threshold as the lightning interruption position when a power transmission interruption event is detected, which helps to take maintenance measures in time and restore power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a device for quickly locating a cable interrupted by lightning strike provided in Example 1 of the present application;

[0021] Figure 2 It is a structural schematic diagram of a device for quickly locating a cable interrupted by lightning strike provided in Example 2 of the present application;

[0022] Figure 3 It is a structural schematic diagram of a device for quickly locating a cable interrupted by lightning strike provided in Example 3 of the present application;

[0023] Figure 4 It is a flow chart of a method for quickly locating a cable interruption caused by lightning strike provided in the fourth embodiment of the present application;

[0024] Figure 5 It is a schematic diagram of the structure of an electronic device provided in Example 5 of the present application. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present application clearer, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for the convenience of description, only the part related to the present application but not all the contents are shown in the accompanying drawings. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow chart describes each operation (or step) as a sequential process, many of the operations therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of each operation can be rearranged. The process can be terminated when its operation is completed, but it can also have additional steps not included in the accompanying drawings. The process can correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0027] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0028] In the following, in conjunction with the accompanying drawings, the device, method and equipment for quickly locating cable lightning interruption provided in the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0029] Embodiment 1

[0030] Figure 1 Schematic diagram of the structure of the device for quickly locating a cable interrupted by lightning provided in the first embodiment of the present application. Figure 1 As shown, the device comprises:

[0031] The voltage difference acquisition module 110 is used to acquire voltage difference data between two adjacent fixed positions through a voltage sensor fixed to a position close to the ground of the cable rack;

[0032] A power transmission monitoring module 120, configured to start a power transmission monitoring task when the voltage difference data is greater than a preset voltage difference threshold;

[0033] A lightning interruption determination module 130, configured to determine that a lightning interruption event exists when the power transmission monitoring task detects a power transmission interruption event;

[0034] The lightning strike position determination module 140 is used to determine the fixed position of the voltage sensor where the voltage difference data is greater than a preset voltage difference threshold as the lightning strike interruption position when it is determined that a lightning interruption event exists.

[0035] This application is applicable to scenarios where cables are laid in areas where lightning strikes may occur, such as mountainous areas or grasslands. Specifically, the acquisition of voltage difference data, the initiation of power transmission monitoring tasks, and the determination of lightning interruption locations can be performed by intelligent terminal devices. Workers can promptly check the lightning interruption locations and take corresponding maintenance measures to ensure the normal operation of the cables.

[0036] Based on the above usage scenarios, it can be understood that the executor of the present application can be a smart terminal device, such as a desktop computer, a laptop computer, a mobile phone, a tablet computer, and interactive multimedia, etc., and no excessive limitations are made here.

[0037] The voltage difference acquisition module 110 is used to acquire voltage difference data between two adjacent fixed positions through a voltage sensor fixed to a position close to the ground of the cable rack.

[0038] A cable is a device that can be used for communication or power transmission. A cable rack is a device used to support and fix cables. The cable rack's position close to the ground can be a position that can prevent accidental contact with ground creatures or equipment and is convenient for staff to inspect and maintain, for example, it can be a position between 2.5-4 meters above the ground on the cable rack.

[0039] A voltage sensor is a device that converts a voltage signal into another form of signal and is commonly used to measure and monitor circuit voltage. The fixed position may refer to the location information of the cable rack where the voltage sensor is fixed. The voltage sensor can collect voltage data at the fixed position.

[0040] The voltage difference data may refer to the voltage difference between different points. Voltage sensors at two adjacent fixed positions collect voltage data, and by performing a subtraction operation on the two voltage data, the voltage difference data between the two adjacent fixed positions can be obtained.

[0041] The power transmission monitoring module 120 is configured to start a power transmission monitoring task when the voltage difference data is greater than a preset voltage difference threshold.

[0042] The preset voltage difference threshold may be a preset lower limit of voltage difference data indicating that a lightning interruption event may occur at a fixed position. The number of cable racks between two adjacent fixed positions may be determined based on the total length information of the cable, the average operating voltage data of the cable may be determined based on the historical voltage data of the cable, and the preset voltage difference threshold may be determined based on the average operating voltage data and the number of cable racks.

[0043] Starting the power transmission monitoring task may mean continuously monitoring various key indicators in the power transmission process to ensure stable and reliable operation of the power system. Among them, the key indicators involved in the power transmission interruption event may include real-time current data, real-time voltage data, real-time power data, and the working status information of the circuit breaker on the cable.

[0044] The lightning interruption determination module 130 is used to determine that there is a lightning interruption event when the power transmission monitoring task detects a power transmission interruption event.

[0045] A power transmission interruption event may refer to a temporary or continuous power supply interruption that occurs during power transmission in the power system. The power transmission monitoring task detects whether there is a power transmission interruption event by determining that there is a power transmission interruption event when at least one of the real-time current data, the real-time voltage data, and the real-time power data drops to a corresponding preset threshold within a preset time period, or when the working state information of the circuit breaker is in a disconnected state, determining that there is a power transmission interruption event.

[0046] The lightning strike position determination module 140 is used to determine the fixed position of the voltage sensor where the voltage difference data is greater than a preset voltage difference threshold as the lightning strike interruption position when it is determined that a lightning interruption event exists.

[0047] A lightning outage event may refer to a situation where power transmission is interrupted due to thunderstorms. A lightning outage location may refer to a specific location where a line or device fails or becomes abnormal due to a lightning strike, thereby causing a power outage.

[0048] When the voltage difference data between two adjacent fixed positions is greater than the preset voltage difference threshold, it indicates that a fault or abnormal event has occurred at the fixed position. If the voltage difference data between two adjacent fixed positions is greater than the preset voltage difference threshold and there is a power transmission interruption event at the same time, it can be basically determined that the fault or abnormal event occurring at the fixed position is a lightning interruption event, and accordingly, the fixed position of the voltage sensor whose voltage difference data is greater than the preset voltage difference threshold can be determined as the lightning interruption position.

[0049] In the example of the present application, the voltage difference acquisition module is used to obtain the voltage difference data between two adjacent fixed positions through a voltage sensor fixed to a cable rack close to the ground; the power transmission monitoring module is used to start the power transmission monitoring task when the voltage difference data is greater than a preset voltage difference threshold; the lightning interruption determination module is used to determine that there is a lightning interruption event when the power transmission monitoring task detects a power interruption event; the lightning strike position determination module is used to determine the fixed position of the voltage sensor where the voltage difference data is greater than the preset voltage difference threshold as the lightning interruption position when it is determined that there is a lightning interruption event. This technical solution is passed.

[0050] Embodiment 2

[0051] Figure 2 This is a schematic diagram of the structure of the device for quickly locating a cable interruption caused by lightning strike provided in Example 2 of the present application. This solution has made better improvements on the basis of the above-mentioned embodiments, and the specific improvements are as follows: the device also includes: a cable length acquisition module for acquiring the total length information of the cable; a fixed interval determination module for determining the number of interval cable racks between two adjacent fixed positions according to the total length information; correspondingly, the voltage difference acquisition module is specifically used to: acquire the voltage difference data between two adjacent fixed positions by means of a voltage sensor fixed to a position close to the ground of the cable rack according to the number of interval cable racks.

[0052] like Figure 2 As shown, the device comprises:

[0053] The cable length acquisition module 210 is used to obtain the total length information of the cable;

[0054] A fixed interval determination module 220, configured to determine the number of interval cable racks between two adjacent fixed positions according to the total length information;

[0055] The voltage difference acquisition module 230 is used to acquire voltage difference data between two adjacent fixed positions through a voltage sensor fixed to a position close to the ground of the cable rack;

[0056] A power transmission monitoring module 240, configured to start a power transmission monitoring task when the voltage difference data is greater than a preset voltage difference threshold;

[0057] A lightning interruption determination module 250, configured to determine that a lightning interruption event exists when the power transmission monitoring task detects a power transmission interruption event;

[0058] The lightning strike position determination module 260 is used to determine the fixed position of the voltage sensor where the voltage difference data is greater than a preset voltage difference threshold as the lightning strike interruption position when it is determined that a lightning interruption event exists.

[0059] The voltage difference acquisition module 230 is specifically used for:

[0060] The voltage difference data between two adjacent fixed positions are obtained by fixing voltage sensors at positions close to the ground of the cable rack according to the number of the interval cable racks.

[0061] The total length information of the cable may refer to the full length of the cable from the starting point to the end point, which can be obtained by querying the design documents of the cable laying, or by field measurements by staff along the cable line.

[0062] The number of the spaced cable racks may refer to the number of cable racks between two adjacent fixed positions. It is understandable that if each cable rack is fixed with a voltage sensor, the number of the spaced cable racks is 0.

[0063] The method for determining the number of interval cable racks may be to determine the current number of interval cable racks according to the current total length information and the pre-set correlation between the total cable length and the number of interval cable racks. For example, if the total cable length does not exceed 10 kilometers, the number of interval cable racks is 0; if the total cable length exceeds 10 kilometers, the number of interval cable racks is the result of dividing the difference between the total cable length and 10 kilometers by two kilometers and rounding up.

[0064] In this technical solution, optionally, the device further includes:

[0065] An average voltage determination module, used to determine average operating voltage data of the cable based on historical voltage data of the cable;

[0066] The voltage threshold determination module is used to determine the preset voltage difference threshold according to the average operating voltage data and the number of the interval cable racks.

[0067] The historical voltage data may refer to the real-time voltage data of the cable recorded before the current time point. The average operating voltage data may refer to the average value of the historical voltage data. The average operating voltage data may be obtained by adding the historical voltage data at each time point and dividing by the historical duration.

[0068] The preset voltage difference threshold value can be determined by obtaining the core radius information and the core material information of the cable, determining the resistance value between two adjacent fixed positions according to the core radius information, the core material information and the number of interval cable racks, determining the ideal voltage difference according to the resistance value, and multiplying the ideal voltage difference by the first preset coefficient to obtain the preset voltage difference threshold value. The first preset coefficient can be an empirical value based on historical data and experimental data, for example, the first preset coefficient can be 120%.

[0069] Here is a sample code to determine a preset voltage difference threshold:

[0070] import math

[0071] def calculate_voltage_threshold(cable_radius,cable_material,num_cables,first_preset_factor=1.2):

[0072] """

[0073] Calculate the preset voltage difference threshold

[0074] parameter:

[0075] cable_radius(float): Cable core radius, in meters

[0076] cable_material (str): Cable core material, can be 'copper' (copper) or 'aluminum' (aluminum)

[0077] num_cables(int): Number of cable racks

[0078] first_preset_factor (float, optional): The first preset factor, default is 1.2 (120%)

[0079] return:

[0080] float: preset voltage difference threshold

[0081] """

[0082] #Calculate the resistance value between two adjacent fixed positions

[0083] if cable_material=='copper':

[0084] resistivity=1.72e-8#The resistivity of copper, in ohms*meters

[0085] elif cable_material=='aluminum':

[0086] resistivity=2.82e-8# The resistivity of aluminum, in ohms*meters

[0087] else:

[0088] raise ValueError("Invalid wire core material, must be 'copper' or 'aluminum'")

[0089] length = num_cables * 10 # Assume each cable is 10 meters

[0090] resistance=resistivity*length / (math.pi*cable_radius**2)

[0091] # Calculate the ideal voltage difference

[0092] ideal_voltage_diff=resistance*10#Assume the current is 10 amperes

[0093] #Calculate the preset voltage difference threshold

[0094] voltage_threshold=ideal_voltage_diff*first_preset_factor

[0095] return voltage_threshold

[0096] Example usage:

[0097] cable_radius=0.01#The cable core radius is 10 mm

[0098] cable_material = 'copper'

[0099] num_cables = 5# The number of cable racks is 5

[0100] voltage_threshold=calculate_voltage_threshold(cable_radius,cable_material,num_cables)

[0101] print(f"The preset voltage difference threshold is: {voltage_threshold:.2f} volts")

[0102] The benefit of this arrangement of the present solution is that by determining the preset voltage difference threshold based on the average operating voltage data of the cable and the number of interval cable racks, abnormal voltage fluctuations during cable operation can be detected more accurately, and the scheme is suitable for cables in various laying conditions.

[0103] The advantage of this arrangement of the present scheme is that by determining the number of cable racks spaced between two adjacent fixed positions based on the total length information of the cable, the number of voltage sensors to be set can be reasonably controlled while being able to identify voltage difference abnormalities, thereby saving the setting cost and operating cost of the voltage sensors.

[0104] Embodiment 3

[0105] Figure 3 It is a structural schematic diagram of the rapid positioning device for cable lightning interruption provided in Example 3 of the present application. This solution has made better improvements on the basis of the above-mentioned embodiments, and the specific improvements are as follows: the power transmission monitoring module is specifically used to obtain the real-time current data, real-time voltage data and real-time power data of the cable when the voltage difference data is greater than the preset voltage difference threshold; correspondingly, the lightning interruption determination module is specifically used to determine that there is a lightning interruption event when at least one of the real-time current data, the real-time voltage data and the real-time power data drops to the corresponding preset threshold within a preset time.

[0106] like Figure 3 As shown, the device comprises:

[0107] The voltage difference acquisition module 310 is used to acquire voltage difference data between two adjacent fixed positions through a voltage sensor fixed to a position close to the ground of the cable rack;

[0108] A power transmission monitoring module 320, configured to start a power transmission monitoring task when the voltage difference data is greater than a preset voltage difference threshold;

[0109] A lightning interruption determination module 330, configured to determine that a lightning interruption event exists when the power transmission monitoring task detects a power transmission interruption event;

[0110] The lightning strike position determination module 340 is used to determine the fixed position of the voltage sensor where the voltage difference data is greater than a preset voltage difference threshold as the lightning strike interruption position when it is determined that a lightning interruption event exists.

[0111] The power transmission monitoring module 320 is specifically used for:

[0112] When the voltage difference data is greater than a preset voltage difference threshold, real-time current data, real-time voltage data and real-time power data of the cable are acquired;

[0113] The lightning interruption determination module 330 is specifically used for:

[0114] When at least one of the real-time current data, the real-time voltage data, and the real-time power data decreases to a corresponding preset threshold within a preset time period, it is determined that a lightning interruption event exists.

[0115] Real-time current data may refer to the amount of charge passing through the conductor cross section per unit time obtained in real time, which may be obtained through a current sensor; real-time voltage data may refer to the potential difference per unit time obtained in real time, which may be obtained through a voltage sensor; real-time power data may refer to the amount of electrical energy consumed or generated per unit time obtained in real time, which may be obtained by multiplying real-time current data and real-time voltage data.

[0116] The preset threshold value may be an upper limit of real-time current data / real-time voltage data / real-time power data indicating that there is no temporary or continuous power outage in the power system during power transmission. Generally, when the real-time current data, real-time voltage data or real-time power data drops to the corresponding preset threshold value in a very short time, it can be considered that there is a power transmission interruption event. The very short time is the preset duration, and specifically, the preset duration can be set within 1-10 milliseconds.

[0117] In this technical solution, optionally, the device further includes:

[0118] A cable demand acquisition module is used to obtain the saturation current information and saturation voltage information of the cable;

[0119] The preset threshold determination module is used to determine the preset thresholds corresponding to the real-time current data, the real-time voltage data and the real-time power data according to the saturation current information and the saturation voltage information.

[0120] Saturation current information can refer to the maximum current value that the cable can continuously carry under given working conditions; saturation voltage information can refer to the maximum value of the voltage drop across the cable when the cable is running at full load. The saturation current information and saturation voltage information of the cable can be obtained by consulting the cable product manual or technical data and other descriptive documents.

[0121] The method of determining the preset threshold values ​​corresponding to the real-time current data, the real-time voltage data, and the real-time power data may be to obtain the preset threshold value of the real-time current data by multiplying the saturated current information by the second preset coefficient, to obtain the preset threshold value of the real-time voltage data by multiplying the saturated voltage information by the second preset coefficient, and to obtain the preset threshold value of the real-time power data by multiplying the saturated current information, the saturated voltage information, and the second preset coefficient. The second preset coefficient may be an empirical value based on historical data and experimental data, for example, the second preset coefficient may be 10%.

[0122] In this technical solution, optionally, the device further includes:

[0123] A cable environment acquisition module, used to acquire environmental information of the cable; wherein the environmental information includes at least one of temperature information, humidity information and wind speed information;

[0124] Accordingly, the preset threshold determination module is specifically used for:

[0125] Preset thresholds corresponding to the real-time current data, the real-time voltage data, and the real-time power data are determined according to the saturation current information, the saturation voltage information, and the environmental information.

[0126] The environmental information of the cable may be information used to describe environmental characteristics of the environment in which the cable is located, and may include temperature information, humidity information, wind speed information, and the like.

[0127] Specifically, temperature information may refer to the heat measurement of the air environment where the cable is located, which may be obtained through a temperature sensor; humidity information may refer to the water vapor content in the air environment where the cable is located, which may be obtained through a humidity sensor; wind speed information may refer to the speed at which the air environment where the cable is located flows from a certain direction within a certain period of time, which may be obtained through an anemometer or a wind speed sensor. Optionally, temperature information, humidity information, and wind speed information may also be obtained by querying meteorological data of the area where the cable is located.

[0128] The method for determining the preset threshold values ​​corresponding to the real-time current data, real-time voltage data and real-time power data can be adopted by determining the third preset coefficient corresponding to the temperature information, humidity information and wind speed information, and multiplying the preset threshold value determined according to the saturated current information and the saturated voltage information by the third preset coefficient to obtain the final preset threshold values ​​corresponding to the real-time current data, real-time voltage data and real-time power data.

[0129] The third preset coefficient may be a coefficient describing how the temperature information, humidity information and wind speed information affect the operation of the cable and the degree of their influence. For example, when the temperature information is between 20-40 degrees Celsius, the third preset coefficient is 1, when the temperature information is less than 20 degrees Celsius, the third preset coefficient is 0.9, and when the temperature information is greater than 40 degrees Celsius, the third preset coefficient is 1.1; when the humidity information is between 40-70%, the third preset coefficient is 1, when the temperature information is less than 40%, the third preset coefficient is 0.9, and when the temperature information is greater than 70%, the third preset coefficient is 1.1; when the wind speed information is between 0-10 meters per second, the third preset coefficient is 1, when the wind speed information is between 10-30 meters per second, the third preset coefficient is 0.9, and when the temperature information is greater than 30 meters per second, the third preset coefficient is 0.7.

[0130] The following is a sample code for determining the preset thresholds corresponding to real-time current data, real-time voltage data, and real-time power data:

[0131]

[0132]

[0133]

[0134] Example usage:

[0135] #Create a preset threshold calculator instance

[0136] calculator=PresetThresholdCalculator(saturation_current=500,saturation_voltage=10,second_preset_factor=0.1)

[0137] #Update environment factors

[0138] calculator.update_environment_factors(temperature=25,humidity=60,wind_speed=5)

[0139] # Calculate the preset threshold

[0140] current_threshold=calculator.calculate_current_threshold()

[0141] voltage_threshold=calculator.calculate_voltage_threshold()

[0142] power_threshold=calculator.calculate_power_threshold()

[0143] print(f"Current Threshold:{current_threshold}")

[0144] print(f"Voltage Threshold:{voltage_threshold}")

[0145] print(f"Power Threshold:{power_threshold}")

[0146] The advantage of this arrangement of the present scheme is that by determining the corresponding preset thresholds of real-time current data, real-time voltage data and real-time power data based on saturation current information, saturation voltage information and environmental information, the impact of environmental information on the operating conditions of the cable can be taken into account, thereby improving the accuracy of the determined preset thresholds.

[0147] The benefit of this arrangement of the present scheme is that by determining the corresponding preset thresholds of real-time current data, real-time voltage data and real-time power data based on the saturation current information and the saturation voltage information, the recognition criteria for lightning interruption events can be optimized, thereby improving the recognition accuracy and reliability of lightning interruption events.

[0148] The advantage of this arrangement of the present scheme is that by determining that a lightning interruption event exists when at least one of the real-time current data, real-time voltage data and real-time power data drops to a corresponding preset threshold within a preset time period, accurate detection of lightning interruption events can be achieved.

[0149] In this technical solution, optionally, the power transmission monitoring module is specifically used to:

[0150] When the voltage difference data is greater than a preset voltage difference threshold, obtaining working status information of a circuit breaker on the cable;

[0151] Accordingly, the lightning interruption determination module is specifically used for:

[0152] When the working state information of the circuit breaker is a disconnected state, it is determined that a lightning interruption event occurs.

[0153] A circuit breaker may be a device mainly used to quickly cut off a circuit when a circuit fault occurs to prevent further damage caused by the fault. The working status information of the circuit breaker may be information describing whether the circuit breaker has cut off the circuit, including a closed state and an open state. If the working status information of the circuit breaker is an open state, it means that the circuit breaker has cut off the circuit and there is a power transmission interruption event in the cable.

[0154] The benefit of such a configuration of the present solution is that by determining that a lightning interruption event exists when the working status information of the circuit breaker is in a disconnected state, rapid identification of the lightning interruption event can be achieved.

[0155] Embodiment 4

[0156] Figure 4 1 is a flow chart of a method for quickly locating a cable interruption caused by lightning strike provided in the fourth embodiment of the present application. Figure 4 As shown, the specific steps include:

[0157] S401, obtaining voltage difference data between two adjacent fixed positions through a voltage sensor fixed to a cable rack close to the ground by a voltage difference obtaining module;

[0158] S402, starting a power transmission monitoring task by a power transmission monitoring module when the voltage difference data is greater than a preset voltage difference threshold;

[0159] S403, determining, by a lightning interruption determination module, that a lightning interruption event exists when the power transmission monitoring task detects a power transmission interruption event;

[0160] S404: When it is determined that a lightning interruption event occurs, the lightning strike position determination module determines the fixed position of the voltage sensor where the voltage difference data is greater than a preset voltage difference threshold as the lightning interruption position.

[0161] In the embodiment of the present application, the voltage difference acquisition module obtains the voltage difference data between two adjacent fixed positions through a voltage sensor fixed to a cable rack near the ground; the power transmission monitoring module starts the power transmission monitoring task when the voltage difference data is greater than a preset voltage difference threshold; the lightning interruption determination module determines that there is a lightning interruption event when the power transmission monitoring task detects a power interruption event; the lightning strike position determination module determines that there is a lightning interruption event when it is determined that there is a lightning interruption event. The above-mentioned method for quickly locating a lightning interruption of a cable can achieve rapid and accurate positioning of the lightning interruption fault point by determining the fixed position of the voltage sensor with voltage difference data greater than the preset voltage difference threshold as the lightning interruption position when a power interruption event is detected, which helps to take maintenance measures in time and restore power supply.

[0162] The method for quickly locating a cable interruption caused by lightning strike provided in the embodiment of the present application corresponds to the device for quickly locating a cable interruption caused by lightning strike provided in the above embodiment, and has the same functional modules and beneficial effects. To avoid repetition, they will not be described here.

[0163] Embodiment 5

[0164] like Figure 5 As shown, an embodiment of the present application further provides an electronic device 500, including a processor 501, a memory 502, and a program or instruction stored in the memory 502 and executable on the processor 501. When the program or instruction is executed by the processor 501, each process of the embodiment of the rapid positioning device for cable lightning interruption described above is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0165] It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.

[0166] Embodiment 6

[0167] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the embodiment of the rapid positioning device for cable lightning interruption described above is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0168] The processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0169] Embodiment 7

[0170] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned embodiment of the rapid positioning device for cable lightning interruption, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0171] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0172] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0173] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0174] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

[0175] The above are only preferred embodiments of the present application and the technical principles used. The present application is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not deviate from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A rapid positioning device for cable interruption caused by lightning, characterized in that: The device comprises: A voltage difference acquisition module is used to acquire voltage difference data between two adjacent fixed positions through a voltage sensor fixed to a position close to the ground on a cable rack; A power transmission monitoring module, configured to start a power transmission monitoring task when the voltage difference data is greater than a preset voltage difference threshold; A lightning interruption determination module, configured to determine that a lightning interruption event exists when the power transmission monitoring task detects a power transmission interruption event; The lightning strike position determination module is used to determine the fixed position of the voltage sensor whose voltage difference data is greater than a preset voltage difference threshold as the lightning strike interruption position when it is determined that a lightning interruption event exists.

2. The rapid positioning device for cable lightning interruption according to claim 1, characterized in that: The device also includes: The cable length acquisition module is used to obtain the total length information of the cable; A fixed interval determination module, used to determine the number of interval cable racks between two adjacent fixed positions according to the total length information; Accordingly, the voltage difference acquisition module is specifically used for: The voltage difference data between two adjacent fixed positions are obtained by fixing voltage sensors at positions close to the ground of the cable rack according to the number of the interval cable racks.

3. The rapid positioning device for cable lightning interruption according to claim 2, characterized in that: The device also includes: An average voltage determination module, used to determine average operating voltage data of the cable based on historical voltage data of the cable; The voltage threshold determination module is used to determine the preset voltage difference threshold according to the average operating voltage data and the number of the interval cable racks.

4. The rapid positioning device for cable lightning interruption according to claim 1, characterized in that: The power transmission monitoring module is specifically used for: When the voltage difference data is greater than a preset voltage difference threshold, real-time current data, real-time voltage data and real-time power data of the cable are acquired; Accordingly, the lightning interruption determination module is specifically used for: When at least one of the real-time current data, the real-time voltage data, and the real-time power data decreases to a corresponding preset threshold within a preset time period, it is determined that a lightning interruption event exists.

5. The rapid positioning device for cable lightning interruption according to claim 4, characterized in that: The device also includes: A cable demand acquisition module is used to obtain the saturation current information and saturation voltage information of the cable; The preset threshold determination module is used to determine the preset thresholds corresponding to the real-time current data, the real-time voltage data and the real-time power data according to the saturation current information and the saturation voltage information.

6. The rapid positioning device for cable lightning interruption according to claim 5, characterized in that: The device also includes: A cable environment acquisition module, used to acquire environmental information of the cable; wherein the environmental information includes at least one of temperature information, humidity information and wind speed information; Accordingly, the preset threshold determination module is specifically used for: Preset thresholds corresponding to the real-time current data, the real-time voltage data, and the real-time power data are determined according to the saturation current information, the saturation voltage information, and the environmental information.

7. The rapid positioning device for cable lightning interruption according to claim 1, characterized in that: The power transmission monitoring module is specifically used for: When the voltage difference data is greater than a preset voltage difference threshold, obtaining working status information of a circuit breaker on the cable; Accordingly, the lightning interruption determination module is specifically used for: When the working state information of the circuit breaker is a disconnected state, it is determined that a lightning interruption event occurs.

8. A method for quickly locating a cable interruption caused by lightning, characterized in that: The method comprises: The voltage difference acquisition module acquires voltage difference data between two adjacent fixed positions through a voltage sensor fixed to a position close to the ground of the cable rack; When the voltage difference data is greater than a preset voltage difference threshold, the power transmission monitoring task is started by the power transmission monitoring module; When the power transmission monitoring task detects a power transmission interruption event, the lightning interruption determination module determines that there is a lightning interruption event; When it is determined that there is a lightning interruption event, the lightning strike position determination module determines the fixed position of the voltage sensor where the voltage difference data is greater than a preset voltage difference threshold as the lightning interruption position.

9. The method for quickly locating a cable interruption caused by lightning strike according to claim 8, characterized in that: The method further comprises: The total length information of the cable is obtained through the cable length acquisition module; Determine the number of interval cable racks between two adjacent fixed positions according to the total length information by a fixed interval determination module; Correspondingly, the voltage difference acquisition module acquires the voltage difference data between two adjacent fixed positions through a voltage sensor fixed to a position close to the ground of the cable rack, including: The voltage difference data between two adjacent fixed positions are obtained by fixing voltage sensors at positions close to the ground of the cable rack according to the number of the interval cable racks.

10. An electronic device, characterized in that: The method comprises a processor, a memory and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method for quickly locating a cable interruption caused by lightning strike as described in any one of claims 8 to 9.

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