318 results about "Lightning strokes" patented technology

The invention discloses a railway LEU-transponder transmission system lightning stroke fault risk assessment method, and the method comprises the steps: determining a lightning current invasion path through building a lightning stroke transient electromagnetic disturbance calculation model of an electromagnetic sensitive equipment port, and calculating the voltage and current at the port when incoming waves invade. And building an electromagnetic sensitivity test experiment platform of the railway signal system based on the lightning current invasion path and the voltage and current at the port. And performing label category prediction on the to-be-predicted sample point through each support vector machine model in the target model set, and voting each prediction result. According to the invention, a complex transmission relation between lightning transient electromagnetic disturbance and equipment failure risk is established through deep learning. The fault risk of the signal system under the lightning transient electromagnetic disturbance action is predicted through transient electromagnetic effect experimental data of real equipment of the railway signal system, and powerful support is provided for improving the electromagnetic sensitivity of the signal system and guaranteeing stable operation of a railway.

The invention relates to a fire hazard degree comprehensive assessment method integrating forest lightning stroke parameters, and belongs to the technical field of forest fire early warning. The method comprises the following steps: acquiring a meteorological factor, a vegetation factor, a terrain factor, a lightning stroke factor, an exposure factor and a resistance factor in a determined spatial scale resolution; processing the meteorological factors through a meteorological index model to obtain a meteorological fire danger index; inputting the vegetation factor, the terrain factor and the lightning stroke factor into an ignition probability index model to obtain a lightning stroke ignition probability; based on the vegetation factor, the terrain factor and the meteorological fire danger index, obtaining a combustible flammability index through a fire danger index model; performing dimensionless processing on the exposure degree factor and the resistance degree factor, and calculating the exposure degree and the resistance degree; inputting the exposure degree E and the resistance degree R into a fire hazard degree comprehensive model to obtain a comprehensive fire hazard index; and performing automatic grading according to the threshold value and issuing the lightning fire early warning information in real time. According to the invention, the accuracy of comprehensive assessment of the fire hazard degree can be improved.

The invention provides a rainstorm lightning disaster risk early warning method and system based on an analytic hierarchy process, and the method comprises the steps: obtaining historical thunderstorm frequency data and thunderstorm movement path data of a target region, and analyzing and determining the sensitivity levels of different regions in thunderstorm activities; the lightning stroke risk assessment model is decomposed into a target layer, a criterion layer and a scheme layer by using an analytic hierarchy process; according to historical data including lightning stroke historical data, thunderstorm historical data and disaster damage historical data, performing pairwise comparison on each factor of the criterion layer, and constructing a judgment matrix; acquiring spatial position information and characteristics of different types of disaster-bearing bodies, performing overlay analysis according to spatial positions of the disaster-bearing bodies and the lightning drop point probability distribution map, calculating lightning stroke probability values of areas where the disaster-bearing bodies are located, and generating a disaster-bearing body risk level distribution map.

The invention discloses a radar station lightning protection device online monitoring method and system based on the Internet of Things, and relates to the technical field of equipment online monitoring. According to the invention, sensors are deployed in each component of the lightning protection device, real-time transmission and integration of monitoring data are realized by using the Internet of Things technology, a health degree evaluation model based on artificial intelligence is constructed, and remote automatic monitoring and health degree prediction of the lightning protection device of the radar station in a remote area are realized; according to the invention, the health degree evaluation model is combined with the correction coefficient to analyze the assembly evaluation data, and the health degree of each component is accurately predicted, so that the lightning protection effect of the lightning protection device is determined; according to the technical scheme, the space-time limitation of traditional manual inspection is broken through, the problem that a lightning protection device of a radar station in a remote area is difficult to monitor is solved, and conversion from passive maintenance to active prediction is achieved; through real-time data acquisition and intelligent analysis, potential hidden dangers of components can be found in advance, so that workers can take measures in time, and the lightning stroke risk is reduced.

The invention relates to the technical field of power system protection equipment testing, in particular to an online testing method for a backup protector special for a surge protector, and aims to solve the problem that in the prior art, spectral characteristics under actual fault conditions such as lightning stroke or short circuit cannot be comprehensively reflected only by depending on power frequency testing. A high-frequency dynamic frequency sweeping signal is injected through the non-contact coupling unit, a multi-source signal fusion judgment mechanism is combined, the physical contact risk is avoided, meanwhile, real working condition simulation is achieved, the problems of test distortion, weak anti-interference capacity and aging monitoring deficiency in a traditional method are effectively solved, and the test accuracy is improved. The method has the technical effect of remarkably improving the test safety and accuracy.

The invention discloses a blade state monitoring device for a wind driven generator and the wind driven generator, and relates to the field of data monitoring, and the blade state monitoring device comprises a device integration multi-mode sensor module, a self-cleaning deicing module, a lightning stroke monitoring module, an edge calculation module, an anti-typhoon monitoring module, an energy supply module and a communication gateway module. Strain, vibration and temperature sensors are arranged at the root, the tip and the surface of the blade, and an icing detector is arranged at the front edge. And deicing is realized through hot air injection and the nano coating. And a lightning sensor and ultraviolet imaging are used for positioning lightning stroke. And an AI chip is arranged in the edge computing node to diagnose damage. The fiber grating sensor monitors typhoon strain. The solar film and the miniature wind driven generator supply power. And the communication module supports LoRaWAN and Beidou short messages. And the far-end intelligent diagnosis module predicts the service life through machine learning and provides maintenance suggestions. The system has the advantages that the blade state is accurately monitored in real time through the integrated multi-mode sensor and module technology, operation safety is guaranteed, the service life of equipment is prolonged, and efficient utilization of clean energy is facilitated.

The invention discloses a power transmission line lightning stroke current waveform inversion method and device, terminal equipment and a storage medium, and belongs to the field of electric pulses. The method comprises the steps of obtaining electrical parameters of a to-be-processed power transmission line and fault waveform data of a plurality of detection points; constructing a lossy transmission line equivalent circuit according to the electrical parameters and determining a telegraph equation; replacing a space differential in the telegraph equation with a central difference, and replacing a time differential in the telegraph equation with a forward difference to determine a lightning wave propagation model; inputting the fault waveform data into a lightning wave propagation model, and traversing each detection point according to a preset time step to obtain intermediate waveform data; the fault waveform data comprises a first voltage parameter and a first current parameter of the head end; the intermediate waveform data comprises a second voltage parameter and a second current parameter of the tail end; and determining the original waveform of the lightning stroke current based on the intermediate waveform data and a preset shunting coefficient. By implementing the invention, the problem that the real lightning waveform during the lightning stroke fault is difficult to accurately obtain in the prior art can be solved.

The invention relates to the technical field of thunder and lightning monitoring and protection, in particular to a thunderbolt positioning and energy analysis method and system based on a lightning rod monitoring network. The method comprises the following steps: collecting and verifying a lightning current waveform and a microsecond timestamp in real time, and measuring grounding resistance regularly; the terminal carries out filtering analog-to-digital conversion on the signal and extracts characteristic parameters, after packaging, the priority is set according to the current amplitude, and the priority is uploaded to the cloud platform; the cloud platform is associated with multi-terminal synchronous data, when the number of effective terminals is not less than three, coordinates of a thunderbolt point are calculated, integral operation is performed on a lightning current waveform in combination with actually measured grounding resistance to quantify single-time lightning stroke energy, and historical data are analyzed by using a long-short-term memory network model to realize equipment health diagnosis and life prediction. And displaying the thunderbolt point distribution thermodynamic diagram and the state evaluation report through a visual interface. According to the invention, the whole process management from data acquisition to intelligent decision making is realized, and the accuracy and predictability of lightning monitoring and protection are improved.

The invention discloses a lightning stroke observation system and method based on a dynamic visual sensor, and the system comprises the dynamic visual sensor which continuously obtains a dynamic sensing image of an observation region; the CMOS image sensor is used for continuously acquiring observation images of the observation area; the computer is used for continuously measuring and calculating the average brightness of the observation images of the two adjacent frames to obtain the change amplitude of the average brightness; when it is judged that the average brightness change amplitude exceeds a set threshold value, trigger signals are sent to the dynamic vision sensor and the CMOS image sensor; the dynamic vision sensor and the CMOS image sensor store a dynamic sensing image and an observation image through a computer based on a trigger signal; a lightning stroke observation message is generated based on the dynamic sensing image, the observation image, the triggering time and the like; the GPS antenna is used for recording the triggering time when the triggering signal is sent out; and the collector is used for collecting the electric field signal of the plate capacitor antenna, storing the electric field signal through the computer, and judging the polarity of the electric field signal.

The utility model discloses a photovoltaic sunshade. The photovoltaic sunshade comprises a photovoltaic assembly and a frame structure. The frame structure comprises a plurality of frame assemblies and a plurality of stand column assemblies, the photovoltaic assemblies are detachably placed in the frame assemblies, the upper end of each stand column assembly is used for connecting two adjacent frame assemblies, the lower end of each stand column assembly is provided with a grounding piece, the grounding pieces are electrically connected with the stand column assemblies, and the grounding pieces are used for grounding. A reliable lightning protection structure is added to the photovoltaic sunshade, and the photovoltaic sunshade can be prevented from being damaged by lightning stroke.

The invention discloses a distribution line lightning stroke grading protection method based on geographical environment factors, and relates to the field of power system overvoltage protection and electromagnetic transient calculation, and the method comprises the following steps: S1, obtaining the real geographical environment parameters of a distribution line system; s2, performing multi-scale conductor distributed parameter modeling on the distribution line system; s3, modeling a nonlinear device of the distribution line system; s4, establishing a thunder and lightning channel model; s5, establishing a lightning arresting shielding model; s6, solving lightning stroke electromagnetic transient time domain response; step S7, lightning stroke risk comprehensive index output; step S8, lightning stroke risk grading protection; according to the invention, the output of the optimal differential protection scheme under the target protection level is realized, and a reliable theoretical basis and an effective technical path are provided for calculation and research of lightning electromagnetic transient effect of the overhead distribution line of the power system, random process evaluation of lightning activity and comprehensive protection design of line lightning.

The invention discloses a distribution line fault feature identification method, device and equipment, and relates to the technical field of distribution line fault identification, and the method comprises the following steps: collecting multi-source data triggered by a lightning stroke event, and constructing a unified data set; for each line section, extracting corresponding space-time fragment data from the unified data set, and forming a dynamic uncertainty index sequence based on a state change sequence of the section; performing space-time gradient analysis on the dynamic uncertainty index sequence, and extracting disturbance feature vectors representing lightning stroke response differences; and inputting the disturbance feature vectors into a pre-trained section fault probability identification model, evaluating the lightning stroke trigger fault probability of each line section, and determining a target fault section. According to the invention, rapid and accurate positioning of the fault section of the power distribution network in a complex lightning stroke scene is realized, and the power supply reliability is remarkably improved.

The invention relates to the technical field of power equipment monitoring, in particular to a lightning arrester on-line monitoring system based on self power supply. The system obtains electric energy from leakage current of a lightning arrester through an electricity taking module, realizes self-powered operation of the system, and comprises the electricity taking module, a power management module, a lightning stroke counting module, a leakage current acquisition module, a temperature monitoring module, a display and communication module and an SOC control module. According to the system, the temperature capacity is adopted as an aging state evaluation index of the lightning arrester, the temperature of the lightning arrester and the environment temperature are collected in real time, the corrected temperature capacity is calculated in combination with leakage current and lightning current correction coefficients and dynamic weight adjustment, and accurate aging state judgment is achieved. The system has the functions of periodic acquisition, event trigger detection, data correction, wireless communication and local display, supports long-term online monitoring and remote alarm, and effectively improves the accuracy and reliability of lightning arrester state monitoring.

The invention discloses an ancient building lightning protection system and method based on a lightning early warning device, and belongs to the technical field of lightning protection systems, and the system comprises a sensing layer, a decision layer, an execution layer and a digital twin platform. The sensing layer collects multi-mode environmental parameters through an annular atmospheric electric field monitoring array, a broadband electromagnetic pulse sensor and a meteorological sensor. The decision-making layer fuses data and outputs four levels of risk levels through the risk prediction model of the ancient building LSTM combined attention mechanism, and generates a protection instruction; and the execution layer adopts a bionic hidden lightning receiving device (hidden in a non-working state), a passive corona field lightning driving device and a multi-stage historic building SPD, and responds according to a grading strategy. The digital twin platform constructs a high-precision model, and realizes data visualization and protection strategy simulation optimization. Passive lightning protection is converted into active intelligent protection, the situation that a traditional device destroys the style and appearance of an ancient building is avoided, secondary damage caused by lightning stroke is reduced, self-learning optimization can be achieved, and the requirements for safety and cultural relic protection are met.

The invention discloses a Helmholtz coil material lightning magnetic field shielding performance measuring device, which comprises a magnetic field generation device, a shielding test box is arranged in a magnetic field coverage range of the magnetic field generation device, an open hole is formed in the shielding test box, and the open hole enables a magnetic line of force of the magnetic field generation device to transversely penetrate through the shielding test box. The shielding test box is internally provided with the signal measurement unit, the signal measurement unit measures the magnetic field in the shielding test box, the lightning stroke magnetic field environment is accurately simulated, and the repeatability and accuracy of the shielding performance test are improved. The invention further discloses a method for measuring the lightning magnetic field shielding performance of the Helmholtz coil material, the lightning magnetic field shielding performance of the measured shielding material is measured by applying the device for measuring the lightning magnetic field shielding performance of the Helmholtz coil material, and the problem that traditional measurement is poor in accuracy is effectively solved.

The utility model relates to a standardized gap lightning arrester with an insulation support and a fault indication function, which comprises a standardized gap lightning arrester body, the insulation support is mounted at the lower end of the standardized gap lightning arrester body, a disconnector is mounted at the lower end of the insulation support, and a second screw is mounted at the tail end of the disconnector. A mounting hole is formed in one side, far away from the lower end of the standard gap lightning arrester body, of the insulating bracket, the mounting hole in the insulating bracket is connected with the mounting hole in the metal bracket through a first screw, and a second screw at the tail end of the disconnector is connected with the first screw at the joint of the insulating bracket and the metal bracket through a copper wire woven belt. According to the utility model, the disconnector, the insulating bracket and the metal bracket are arranged on the standard gap lightning arrester body, so that when the lightning arrester is broken down by lightning stroke, the disconnector falls off and forms a fault mark, operation and maintenance personnel can easily find a fault point and can carry out targeted maintenance, and meanwhile, due to the insulating bracket, secondary accidents can be avoided.

The invention belongs to the technical field of radio frequency thunder and lightning positioning, and particularly discloses a wind turbine generator lightning arresting detection method based on radio frequency electromagnetic detection. According to the invention, the initial layout of the directional antenna is planned through the signal-to-noise ratio, the elevation angle and the number of stations in a constrained manner, thereby overcoming the defects that the omnidirectional antenna is low in signal-to-noise ratio and is liable to be interfered in a wind power plant, and achieving the selective focusing of a target airspace and the collection of high-signal-to-noise-ratio data. And station distribution parameters are iteratively optimized by simulating lightning signals, so that the capability of monitoring lightning stroke areas of key components of the fan is enhanced. Time parameters are accurately extracted by using the high gain characteristic of the directional antenna, and high-precision measurement of the time difference of arrival is ensured in combination with a unified time base alignment technology. Finally, a high-resolution three-dimensional lightning stroke channel form is inversely generated based on a spherical propagation model, the problem of detection interference in a complex environment of a wind power plant is systematically solved, and an accurate three-dimensional observation basis is provided for lightning stroke protection design and accident analysis.

The application provides a double-end optical lightning stroke positioning method and system applied to power overhead optical cables, and relates to the technical field of optical fiber sensing; the basic principle of positioning is to realize single-end lightning stroke positioning based on the obvious change of the polarization state of optical signals after the optical signals encounter lightning strokes; the application first uses counter-transmitted pulse polarized light to detect a single-end lightning stroke positioning point, then establishes a double-end positioning equation set to solve an actual lightning stroke positioning point, so that accurate lightning stroke positioning is realized; the application uses the Faraday optical rotation effect of lightning strokes on optical signals to realize lightning stroke positioning based on a polarized light time domain reflectometer; compared with traditional lightning stroke positioning, the application has low operation and maintenance cost, high precision, does not need wide-area accurate time synchronization, has a simple system, is convenient to install, and reduces the blind area of lightning stroke positioning.

The invention relates to the technical field of power grid management, in particular to a power transmission line lightning protection configuration method, which comprises the following steps: acquiring a lightning stroke transient simulation model based on line electrical and structural parameters; secondly, obtaining counterattack and shielding failure lightning-proof data through simulation in combination with the maximum lightning-proof bearing value; then, calculating corresponding counterattack and shielding failure trip-out rates based on the lightning-proof data; and finally, taking the two trip-out rates as core configuration indexes to generate and optimize a lightning protection configuration scheme of the power transmission line. According to the method, the lightning protection configuration is converted from experience driving to data driving through simulation quantitative evaluation, the lightning protection effect and economical efficiency can be scientifically and accurately balanced, and the lightning protection performance and the operation reliability of the line are effectively improved.

The invention discloses a lightning protection device of a radio frequency communication system, the radio frequency communication system comprises a board card and a casing, the board card is provided with a board card ground, and the casing is provided with a casing ground; the protection device comprises a first lightning protection circuit; the first lightning protection circuit comprises a surge discharge circuit and an isolation circuit; the isolation circuit is connected between the board card ground and the machine shell ground. The isolation module is used for isolating a board card ground from a shell ground; the surge discharge circuit is connected between the board card ground and the machine shell ground and used for guiding the lightning stroke surge signals into the machine shell ground through the board card ground. According to the invention, the surge discharge circuit is additionally arranged on the basis of high-voltage isolation of the board card ground and the case ground, so that the problems that isolation between the board card ground and the isolation ground cannot be realized at the same time and a complete signal ground plane is used as a backflow path when a lightning stroke surge protection measure is taken by the radio frequency antenna at present are solved.

The utility model belongs to the field of water tanks, particularly relates to a lightning-protection assembly type bolted connection water tank, and aims to solve the problems that the top of an existing traditional water tank is usually provided with a maintenance port which is convenient for personnel to enter the water tank and maintain internal electric appliances, but the personnel usually carry a tool box by hands during maintenance, and the maintenance is inconvenient. In order to solve the problems that when a person climbs to the top of a water tank through a crawling ladder, the person needs to lift a tool box all the time, the tool box is inconvenient to climb, potential safety hazards are likely to occur, and the water tank cannot be subjected to lightning protection and is likely to be damaged in the thunderstorm weather using process, the following scheme is provided that the tool box comprises a foundation platform, and channel steel is fixedly arranged at the top of the foundation platform; a worker can fix the tool box to the tail end of the connecting rope through the transportation mechanism, the tool box does not need to be held by hand in the climbing process, the instability risk caused by holding with one hand is avoided, lightning current can be directly guided into the ground through the lightning protection mechanism, and the water tank and internal equipment are prevented from being damaged by lightning stroke.

The application relates to the technical field of building lightning protection, in particular to a lightning protection device for fabricated buildings, which comprises a fabricated building, a support assembly is installed at the top of the fabricated building, a lightning attracting device is installed at the top of the support assembly, a lightning guiding assembly is installed on one side of the lightning attracting device, and the lightning guiding assembly is installed on the outer side of the fabricated building. In the application, the support assembly, the lightning attracting device, the insulating block, the lightning protection grounding needle, the mounting assembly, the mounting plate, the threaded head, the reinforcing assembly, the lightning guiding assembly, the connector, the lightning protection grounding belt and the fixer are arranged, when the lightning protection grounding needle is in the lightning stroke, the lightning protection grounding needle can transfer the lightning to the ground through the connector, the wire, the lightning protection grounding belt and the grounding device. Due to the design of the insulating block and the fixer, no hole needs to be punched when the lightning protection device is installed, therefore, the connection part of the lightning protection device and the fabricated building is not conductive, the lightning cannot affect the fabricated building, and the safety of the fabricated building is improved.

The invention provides a plateau mountain PLP installation height determination method and system. The plateau mountain PLP installation height determination method comprises the steps of obtaining a plurality of preset installation positions of a plurality of PLP lightning protection devices; constructing a plurality of installation areas corresponding to the plurality of PLP lightning protection devices according to the plurality of installation positions; acquiring historical lightning stroke data corresponding to the current installation area; determining a first protection device with the farthest horizontal distance from the first PLP lightning protection devices corresponding to the area in the current installation area; obtaining topographic data and target equipment height of the first protection equipment, and a target horizontal distance between the first protection equipment and the first PLP lightning protection device; and according to the historical lightning stroke data, the topographic data, the target equipment height and the target horizontal distance, the installation height of the first PLP lightning protection device is calculated based on a rolling ball method. The precision of the PLP installation height can be improved, and the method is suitable for the special terrain and the lightning stroke risk of the plateau mountain land.

The utility model discloses a lightning surge counting and monitoring device with a remote data uploading function. The lightning surge counting and monitoring device comprises a main control circuit board, a display control circuit board and a display module which are packaged in an outer shell, the display control circuit board is electrically connected to the main control circuit board; the display module is electrically connected to the display control circuit board and is exposed from the upper surface of the outer shell; the first end of the main control circuit board is provided with a power supply wiring terminal and a sensor wiring terminal, and the second end of the main control circuit board is provided with a communication wiring terminal. The device can record the number of lightning strokes and display the number of lightning strokes through the display module, and can also upload the number of lightning strokes, time and other data to a maintenance platform in a remote communication mode, so that maintenance personnel can know the state of the system in time. Maintenance personnel can assess and maintain the damage degree of the lightning surge protection device conveniently, the safety of an electric power system can be improved, and the risk assessment capability of the electric power system is enhanced.

The invention discloses a lightning stroke positioning method and system, relates to the technical field of power system safety protection, and solves the problem of large lightning stroke positioning error in a general scheme. An initial lightning stroke positioning clue is provided through electromagnetic wave data, the Joule heating effect of a discharge point is captured through infrared thermal imaging, non-lightning stroke condition interference is eliminated through a vibration spectrum, and under three-mode physical quantity complementation, multi-dimensional characteristics such as electromagnetic radiation, energy release and mechanical shock when the power transmission line is struck by lightning can be represented; bayesian fusion probability calculation is carried out based on the characteristics, so that more accurate lightning stroke points can be obtained, and protection starting and first-aid repair of a subsequent power system are facilitated.

The application relates to a lightning stroke risk assessment method and device based on machine learning and a storage medium, wherein the method comprises the following steps: acquiring lightning data, wind field related data and lightning disaster data, and performing data preprocessing to construct a data set; the data set is labeled based on a semi-supervised K-means algorithm, wherein the data set is labeled as lightning disaster data, non-lightning disaster data and unlabeled data; a LapSVM model and a PSO algorithm are constructed, and parameters are initialized; data is input into the model for training, a lightning stroke risk probability is generated according to data labels and model parameters, and the PSO algorithm is used to optimize model parameters; lightning data and wind field related data to be evaluated are used as input, a trained LapSVM model is used for lightning stroke risk assessment, and a lightning stroke risk probability is output. Compared with the prior art, the application has the advantages of being completely data-driven and being capable of utilizing the data structure information of unlabeled samples.

The utility model relates to the technical field of frequency converter insulation and heat dissipation, and discloses a high-power frequency converter insulation and heat dissipation structure which comprises a bottom plate, foot columns and side columns, the foot columns are fixedly connected to the four corners of the upper surface of the bottom plate, and the side columns are fixedly connected to the middle portions of the two sides of the upper surface of the bottom plate. According to the high-power frequency converter insulation heat dissipation structure, the bottom plate, the foot columns and the side columns are combined to form a frame structure used for bearing the heat dissipation assembly and the frequency converter, meanwhile, the rigidity of the whole structure is enhanced, and the frame structure is made of a steel material, can be directly used for grounding and has heat dissipation, impact resistance and lightning stroke resistance performance; the outer side vacant part of the frame body is filled with the side plates, the top of the frame body is sealed and covered with the top plate, the side plates and the top plate are made of metal materials such as copper with high heat conduction performance and high conductivity, the heat dissipation and signal shielding capacity can be achieved, meanwhile, the interior of each side plate is a hollow outer layer, heat dissipation fins and arc-shaped pieces are installed, the heat dissipation area can be increased, and the heat dissipation efficiency is improved. And the heat dissipation effect is improved.

The application relates to the technical field of relay protection, in particular to a fault type identification method and a computer system for a highland mountain power transmission line. A two-stage aggregation strategy is used to extract a fault event section from a denoised fault current signal, fault component currents are extracted for each fault event section, and average power ratios of fault duration stages and decay stages are calculated. The average power ratios are compared with a discrimination threshold value to determine the fault type, and reliable fault type identification under the highland mountain power transmission line is realized. The application aims to solve the problem of how to realize reliable lightning stroke identification in the special environment of highlands and mountains.

The invention provides a lightning protection detection point location management method and system, and the method comprises the steps: dividing a to-be-detected region into grids, and generating a region lightning protection risk index of each grid according to a space-time diagram convolution network; obtaining own state data and external environment data, inputting the data into a pre-trained MLP neural network model based on an attention mechanism, and outputting a health degree score of the lightning protection detection point location, the external environment data including a regional lightning protection risk index; judging whether the health degree score is greater than a threshold value; if yes, according to the health degree score data, the number of lightning strokes and the average temperature and humidity, determining continuous predicted health degree scores by adopting an LSTM model and an XGBoost model; judging whether the predicted health degree score is greater than a threshold value; if yes, the corresponding lightning protection detection point positions are removed; and if it is judged that the health degree score of the lightning protection detection point is not greater than the threshold value, the corresponding lightning protection detection point is reserved, and dynamic management based on real-time risks is effectively realized.

The utility model belongs to the technical field of lightning protection current transformers, and particularly relates to an energy storage current transformer with a lightning protection module, which comprises a current transformer shell, a connecting seat connected to the outer side of the current transformer shell, a lightning protection assembly connected to the current transformer shell, and a lightning protection device connected to the inner side of the current transformer shell, the surge protector and the lightning protection device are arranged on the inner side of the converter shell, the surge protector and the lightning protection device are connected with an external grounding system through a grounding wire, the movable ventilation part assists in air exhaust and heat dissipation of the interior of the converter shell, the lightning protection device is matched with the grounding wire, and when lightning stroke occurs, lightning impulse energy is absorbed and discharged by the grounding wire through the external grounding system. And meanwhile, the surge protector works, so that the possibility that other devices in the box body are damaged when the lightning protection device generates an arc spraying phenomenon is reduced.