CN114465217B

CN114465217B - Lightning protection method and device based on high-frequency isolation

Info

Publication number: CN114465217B
Application number: CN202210013992.6A
Authority: CN
Inventors: 周海; 刘炜; 李锐; 柯挺; 喻召杰; 陈焕彬; 赵铭; 林镇锋; 田松林; 刘兆平
Original assignee: China Southern Power Grid Digital Platform Technology Guangdong Co ltd
Current assignee: China Southern Power Grid Digital Platform Technology Guangdong Co ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2024-04-05
Anticipated expiration: 2042-01-06
Also published as: CN114465217A

Abstract

The invention discloses a lightning protection method and device based on high-frequency isolation, wherein the method comprises the following steps: and acquiring lightning stroke data, wherein the lightning stroke data comprise lightning stroke current, judging whether lightning stroke exists according to the content included in the lightning stroke data, and executing target operation matched with the lightning stroke current when judging that the lightning stroke exists, wherein the target operation comprises reducing the lightning stroke current output to target equipment and/or executing the operation of discharging the lightning stroke current to the ground. Therefore, the invention can prevent the equipment from being damaged due to lightning strike, thereby being beneficial to improving the lightning protection effect and the lightning protection safety of the equipment and further being beneficial to improving the protection capability of the equipment to lightning activities.

Description

Lightning protection method and device based on high-frequency isolation

Technical Field

The invention relates to the technical field of lightning protection, in particular to a lightning protection method and device based on high-frequency isolation.

Background

In actual life, the communication lines and the power equipment are distributed in many places, wide in range and long in lines. In the rainy season of each year, a plurality of communication lines or power equipment are hit by lightning, so that the damage is caused, the operation of a power system and the safety and convenience of electricity consumption of people are seriously affected, so that lightning disasters not only damage the power equipment and interfere the communication lines, but also cause a certain loss to economy, and the problem caused by lightning strike is more and more important to people.

At present, lightning attack prevention is usually hard lightning-proof through a lightning protection device, and a lightning protection mode is single, so that the lightning protection effect is not satisfactory, and damage to power equipment can be easily caused. It is important to provide a new lightning protection method to improve the safety protection capability of the equipment.

Disclosure of Invention

The invention aims to solve the technical problem of providing a lightning protection method and device based on high-frequency isolation, which can be beneficial to improving the protection capability of equipment on lightning activity, wherein the damage of the equipment caused by lightning stroke is prevented, and further the lightning protection effect and the lightning protection safety of the equipment are improved.

In order to solve the technical problem, a first aspect of the invention discloses a lightning protection method based on high-frequency isolation, which comprises the following steps:

collecting lightning stroke data, wherein the lightning stroke data comprises lightning stroke current;

judging whether lightning stroke exists or not according to the content included in the lightning stroke data;

when it is determined that the lightning strike exists, performing a target operation that matches the lightning strike current, wherein the target operation includes reducing the lightning strike current output to a target device and/or performing an operation of bleeding the lightning strike current to ground.

As an alternative embodiment, in the first aspect of the present invention, the method further includes:

detecting whether a bleeder current is back-flowed to the target device, wherein the bleeder current is the lightning strike current from the bleeding to ground;

and when the drain current is detected to flow back to the target device, a blocking operation is performed on the drain current.

As an optional implementation manner, in the first aspect of the present invention, after the acquiring lightning strike data, the method further includes:

uploading the lightning stroke data to a preset cloud platform to trigger the cloud platform to monitor target load equipment, wherein the target load equipment is load equipment associated with the cloud platform.

As an optional implementation manner, in the first aspect of the present invention, after the performing the target operation matched to the lightning strike current, the method further includes:

acquiring historical lightning stroke data in a past preset time period, and analyzing the historical lightning stroke data to obtain corresponding lightning stroke information in the preset time period, wherein the lightning stroke information comprises one or more of lightning stroke times, lightning stroke places, lightning stroke moments and current values of each lightning stroke in the preset time period;

Generating a lightning stroke rule corresponding to the preset time period according to the lightning stroke information;

predicting a lightning strike trend of a lightning activity according to the lightning strike rule, wherein the lightning strike trend comprises one or more of a predicted time of a next lightning strike of the lightning activity, a predicted place of the next lightning strike of the lightning activity, a predicted current value of the next lightning strike of the lightning activity and a predicted damage condition of the next lightning strike of the lightning activity to the target load equipment;

uploading the lightning trend to the cloud platform to trigger the cloud platform to execute the operation matched with the lightning trend on the target load equipment.

As an optional implementation manner, in the first aspect of the present invention, the uploading the lightning trend to the cloud platform, to trigger the cloud platform to perform an operation matching the lightning trend on the target load device, includes:

when the lightning trend is used for indicating that the next lightning stroke of the lightning stroke activity can cause the electric leakage of the target load equipment, uploading the lightning trend to the cloud platform so as to trigger the cloud platform to execute the operation of cutting off the power supply corresponding to the target load equipment at the predicted moment.

receiving feedback information of the cloud platform, wherein the feedback information comprises one or more of a function of the target load equipment damage and a time of the target load equipment damage;

analyzing the feedback information, generating an operation trend of the target load equipment, and formulating a protection scheme corresponding to the operation trend;

and uploading the operation trend and the protection scheme to the cloud platform to trigger the cloud platform to execute the operation matched with the protection scheme on the target load equipment.

In an optional implementation manner, in a first aspect of the present invention, the determining whether there is a lightning strike according to content included in the lightning strike data includes:

judging whether the current value of the acquired lightning current is larger than a preset current threshold value or not, and obtaining a judging result;

when the judging result is used for indicating that the current value of the lightning current is larger than or equal to the preset current threshold value, determining that lightning stroke exists;

when the judging result is used for indicating that the current value of the lightning stroke current is smaller than the preset current threshold value, determining that no lightning stroke exists;

And, the method further comprises:

and triggering the cloud platform to execute the operation of evaluating the lightning protection performance of the target load equipment when the lightning stroke is judged not to exist, wherein the lightning protection performance comprises one or more of the functions of a lightning protection device, the operating temperature, the operating humidity and the circuit operating condition.

The second aspect of the invention discloses a lightning protection device based on high frequency isolation, the device comprises:

the lightning stroke data comprises lightning stroke current;

the judging module is used for judging whether lightning stroke exists or not according to the content included in the lightning stroke data;

and the execution module is used for executing target operation matched with the lightning stroke current when the judgment module judges that the lightning stroke exists, wherein the target operation comprises the operation of reducing the lightning stroke current output to target equipment and/or executing the operation of discharging the lightning stroke current to the ground.

As an alternative embodiment, in the second aspect of the present invention, the apparatus further includes:

the detection module is used for detecting whether the leakage current flows back to the target equipment, wherein the leakage current is the lightning stroke current discharged from the ground;

And the blocking module is used for executing blocking operation on the leakage current when the detection module detects that the leakage current flows back to the target equipment.

and the uploading module is used for uploading the lightning stroke data to a preset cloud platform after the acquisition module acquires the lightning stroke data so as to trigger the cloud platform to monitor target load equipment, wherein the target load equipment is load equipment associated with the cloud platform.

the acquisition module is used for acquiring historical lightning stroke data in a past preset time period after the execution module executes target operation matched with the lightning stroke current;

the analysis module is used for analyzing the historical lightning stroke data to obtain corresponding lightning stroke information in the preset time period, wherein the lightning stroke information comprises one or more of lightning stroke times, lightning stroke places, lightning stroke moments and current values of each lightning stroke in the preset time period;

the generation module is used for generating a lightning stroke rule corresponding to the preset time period according to the lightning stroke information;

The prediction module is used for predicting the lightning strike trend of the lightning activity according to the lightning strike rule, wherein the lightning strike trend comprises one or more of the predicted time of the next lightning strike of the lightning activity, the predicted place of the next lightning strike of the lightning activity, the predicted current value of the next lightning strike of the lightning activity and the predicted damage condition of the next lightning strike of the lightning activity to the target load equipment;

the uploading module is further configured to upload the lightning trend to the cloud platform, so as to trigger the cloud platform to perform an operation matched with the lightning trend on the target load device.

In a second aspect of the present invention, the means for uploading the lightning trend to the cloud platform to trigger the cloud platform to perform an operation matching the lightning trend on the target load device specifically is:

the receiving module is used for receiving feedback information of the cloud platform, wherein the feedback information comprises one or more of a function of damage of the target load equipment and a time of damage of the target load equipment;

the analysis module is further used for analyzing the feedback information, generating an operation trend of the target load equipment and formulating a protection scheme corresponding to the operation trend;

the uploading module is further configured to upload the operation trend and the protection scheme to the cloud platform, so as to trigger the cloud platform to execute an operation matched with the protection scheme on the target load device.

In a second aspect of the present invention, the determining module determines, according to the content included in the lightning stroke data, whether there is a lightning stroke by specifically:

and the execution module is further used for triggering the cloud platform to execute the operation of evaluating the lightning protection performance of the target load equipment when the judgment module judges that the lightning stroke does not exist, wherein the lightning protection performance comprises one or more of the functions of the lightning protection device, the operation temperature, the operation humidity and the circuit operation condition.

In a third aspect, the invention discloses another lightning protection device based on high frequency isolation, the device comprising:

a memory storing executable program code;

a processor coupled to the memory;

the processor invokes the executable program code stored in the memory to execute the lightning protection method based on high frequency isolation disclosed in the first aspect of the invention.

A fourth aspect of the invention discloses a computer-readable medium storing computer instructions which, when invoked, are adapted to carry out the high frequency isolation based lightning protection method disclosed in the first aspect of the invention.

Compared with the prior art, the embodiment of the invention has the following beneficial effects:

In the embodiment of the invention, lightning stroke data are collected, the lightning stroke data comprise lightning stroke current, whether lightning stroke exists is judged according to the content included in the lightning stroke data, and when the existence of the lightning stroke is judged, target operation matched with the lightning stroke current is executed, wherein the target operation comprises the operation of reducing the lightning stroke current output to target equipment and/or executing the earth leakage on the lightning stroke current. Therefore, by implementing the invention, the lightning current output to the target equipment can be reduced and/or the operation of discharging the lightning current to the ground can be performed when the lightning stroke is judged to exist, which is beneficial to preventing the equipment from being damaged due to the lightning stroke, thereby being beneficial to improving the lightning protection effect and the lightning protection safety of the equipment and further being beneficial to improving the protection capability of the equipment to lightning activities.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic flow chart of a lightning protection method based on high frequency isolation according to an embodiment of the invention;

FIG. 2 is a schematic flow chart of another lightning protection method based on high frequency isolation according to an embodiment of the invention;

FIG. 3 is a schematic structural diagram of a lightning protection device based on high frequency isolation according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another lightning protection device based on high frequency isolation according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another lightning protection device based on high-frequency isolation according to an embodiment of the present invention.

Detailed Description

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The terms first, second and the like in the description and in the claims and in the above-described figures are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, apparatus, article, or article that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or article.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the invention. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The invention discloses a lightning protection method and device based on high-frequency isolation, which can be beneficial to improving the lightning protection effect and safety of equipment and further improving the protection capability of the equipment to lightning activities by preventing the equipment from being damaged due to lightning stroke. The following will describe in detail.

Example 1

Referring to fig. 1, fig. 1 is a schematic flow chart of a lightning protection method based on high-frequency isolation according to an embodiment of the invention. The lightning protection method based on high-frequency isolation described in fig. 1 can be applied to the lightning protection device based on high-frequency isolation, and also can be applied to a cloud server or a local server based on lightning protection of high-frequency isolation. As shown in fig. 1, the high frequency isolation-based lightning protection method may include the following operations:

101. Lightning stroke data is collected, wherein the lightning stroke data comprises lightning stroke current.

In the embodiment of the invention, the lightning stroke data can be periodically acquired according to a preset time period, can be acquired according to a received instruction for acquiring the lightning stroke data, can be continuously acquired in real time, and is not limited in the embodiment of the invention. Optionally, the lightning stroke data can be collected by one or more of a lightning detector, a monitoring detector and a ground resistance detector. The lightning detector can be used for collecting the data of lightning strokes of the lightning rod; the monitoring detector can be used for collecting information corresponding to the power equipment, wherein the information corresponding to the power equipment can comprise one or more of the running state of the power equipment, the running temperature of the power equipment, the running humidity of the power equipment and the overcurrent intensity of the power equipment, and whether the power equipment is abnormal or not is judged according to the information corresponding to the power equipment; the ground resistance detector can be used for collecting data of the ground resistance of the grounding device, and if the data of the ground resistance exceeds a preset safety threshold value, the ground resistance detector is determined to be abnormal. The lightning stroke data are collected in a plurality of modes, and the lightning stroke data are collected from various aspects, so that the accuracy of judging whether lightning strokes exist or not according to the content included in the lightning stroke data can be improved, damage to equipment caused by the lightning strokes can be prevented, and the lightning protection effect and the lightning protection safety of the equipment can be improved.

In the embodiment of the invention, optionally, the lightning strike data comprises lightning strike current, and further, the lightning strike data can further comprise one or more of lightning strike voltage, lightning strike place, lightning strike time, lightning strike current peak value, lightning strike current polarity. By collecting various lightning stroke data, the accuracy of judging whether lightning stroke exists or not according to the content included in the lightning stroke data can be improved, so that damage to equipment caused by lightning stroke can be prevented, and the lightning protection effect and the lightning protection safety of the equipment can be improved.

102. And judging whether lightning stroke exists or not according to the content included in the lightning stroke data.

In the embodiment of the present invention, when the determination result in step 102 is used to indicate that there is a lightning strike, step 103 is triggered to be executed.

In an alternative embodiment, determining whether a lightning strike exists based on what the lightning strike data includes:

when the judging result is used for indicating that the current value of the lightning current is larger than or equal to a preset current threshold value, determining that lightning exists;

when the judging result is used for indicating that the current value of the lightning current is smaller than a preset current threshold value, determining that no lightning stroke exists;

And, the method further comprises:

and triggering the cloud platform to execute the operation of evaluating the lightning protection performance of the target load equipment when the lightning stroke is judged to be absent, wherein the lightning protection performance comprises one or more of the functions of the lightning protection device, the operating temperature, the operating humidity and the circuit operating condition.

In this alternative embodiment, the preset current threshold may alternatively be 15000 amps. For example, when the acquired lightning strike current is 25000 amperes, determining that a lightning strike exists; when the acquired lightning strike current is 500 amperes, it is determined that no lightning strike exists. Therefore, whether the current value of the lightning stroke current is larger than a preset current threshold value or not is judged, if yes, the existence of the lightning stroke is determined, if not, the existence of the lightning stroke is determined, and the accuracy of determining the existence of the lightning stroke can be improved.

In this optional embodiment, optionally, when it is determined that there is no lightning strike, the operation of triggering the cloud platform to perform the evaluation of the lightning protection performance of the target load device may be one or more of evaluating whether the lightning protection device of the target load device is fully functional, evaluating whether the lightning protection device of the target load device is damaged, evaluating whether the operation temperature of the target load device is within a preset temperature threshold range, evaluating whether the operation humidity of the target load device is within a preset humidity threshold range, evaluating whether the circuit of the target load device is damaged, and evaluating whether the circuit of the target load device is short-circuited and/or broken. When the lightning protection performance of the target load equipment is judged to have an abnormal state, judging that an abnormal reason for the abnormal state exists, and performing management and control operation on the target load equipment according to the abnormal reason. For example, when it is determined that the operation temperature of the target load device is higher than the preset temperature threshold, an operation of cooling and/or stopping the operation of the target load device is performed on the target load device so that the operation temperature of the target load device is within the temperature threshold range. In this way, when no lightning stroke exists, the cloud platform is triggered to execute the operation of evaluating the lightning protection performance of the target load device, when the abnormal state exists in the lightning protection performance of the target load device, the abnormal reason is analyzed, the corresponding operation is executed on the lightning protection device according to the abnormal reason, the damage to the device caused by the lightning stroke can be prevented, the lightning protection effect and the lightning protection safety of the device are improved, and the protection capability of the device on lightning activities is improved.

In this optional embodiment, optionally, the lightning strike data further includes a lightning strike voltage, and determining, according to content included in the lightning strike data, whether there is a lightning strike, may further include: judging whether the voltage value of the acquired lightning stroke voltage is larger than a preset voltage threshold value or not, and obtaining a judging result; if the judgment result is used for indicating that the voltage value of the acquired lightning stroke voltage is larger than a preset voltage threshold value, determining that lightning stroke exists; and if the judging result is used for indicating that the voltage value of the lightning stroke voltage is smaller than the preset voltage threshold value, determining that the lightning stroke does not exist. Therefore, whether the lightning stroke exists or not can be determined by judging whether the lightning stroke voltage is larger than a preset voltage threshold value, and the mode of determining whether the lightning stroke exists or not can be enriched, so that the intelligence of determining whether the lightning stroke exists is improved, and the accuracy of determining whether the lightning stroke exists is improved.

In this alternative embodiment, further optionally, the determining whether the current value of the collected lightning current is greater than the preset current threshold value and the determining whether the voltage value of the collected lightning voltage is greater than the preset voltage threshold value may be performed simultaneously, or the determining whether the current value of the collected lightning current is greater than the preset current threshold value may be performed first, or the determining whether the voltage value of the collected lightning voltage is greater than the preset voltage threshold value may be performed first, or only the determining whether the current value of the collected lightning current is greater than the preset current threshold value or only the determining whether the voltage value of the collected lightning voltage is greater than the preset voltage threshold value may be performed first, which is not limited in the embodiment of the present invention. The lightning stroke determining method has the advantages that whether lightning strokes exist or not is determined in a rich mode, the intelligence of determining that the lightning strokes exist can be improved, the accuracy of determining that the lightning strokes exist is improved, damage to equipment caused by the lightning strokes is prevented, and the lightning protection effect and the lightning protection safety of the equipment are improved.

Therefore, the method described by implementing the alternative embodiment can judge whether the acquired lightning current is greater than a preset current threshold, if the acquired lightning current is greater than or equal to the current threshold, then the lightning stroke is determined to exist, if the acquired lightning current is less than the current threshold, then the lightning stroke is determined to not exist, and when the lightning stroke is determined to not exist, the cloud platform is triggered to execute the operation of evaluating the lightning protection performance of the target load equipment, so that the intelligence of determining that the lightning stroke exists can be improved, the accuracy of determining that the lightning stroke exists is improved, damage to equipment caused by the lightning stroke is prevented, the lightning protection effect and the lightning protection safety of the equipment are improved, and the protection capability of the equipment on lightning activity is improved.

103. When it is determined that there is a lightning strike, performing a target operation that matches the lightning strike current, wherein the target operation includes reducing the lightning strike current output to the target device and/or performing a bleeder operation to ground on the lightning strike current.

In an embodiment of the present invention, optionally, reducing the lightning current output to the target device may be performed by a preset isolated power protection module, where the preset isolated power protection module includes a high frequency isolation suppressor, a B-stage SPD, and a C-stage SPD. It should be noted that, the B-stage SPD and the C-stage SPD are surge protectors (lightning protection devices) and can protect indirect lightning and/or direct lightning or other surge with instantaneous overvoltage in extremely short time; the high-frequency isolation suppressor has high impedance and can suppress and block thunder and lightning. Further alternatively, the high-frequency isolation suppressor is connected in series in an outgoing line circuit on the low-voltage side of the distributor, and the high-frequency isolation suppressor is capable of reducing a lightning strike voltage output to the target device when lightning occurs. Through reducing the lightning current and the lightning voltage output to the target equipment, the target equipment can be prevented from being damaged due to the inflow of the overhigh lightning current and the lightning voltage, so that the lightning protection effect and the lightning protection safety of the target equipment can be improved, and the protection capability of the equipment on lightning activities can be improved.

In the embodiment of the invention, optionally, the operation of performing the earth leakage on the lightning current may be performed by a preset isolated group grounding lightning leakage module. The preset isolated group grounding lightning discharge module can comprise a working ground row, a protection ground row and a lightning protection ground row, and further can further comprise a high-frequency isolation inhibitor which can inhibit and block lightning. It should be noted that, in the isolated group grounding lightning discharging module, the connection mode of the working place row, the protection place row and the lightning protection place row is ground separation connection, the working place row, the protection place row and the lightning protection place row are not affected by each other, so that the normal work among the three can be ensured, the signal interference is not received through the group grounding of the working place row, the protection place row and the lightning protection place row, and the safety of maintenance equipment is facilitated, thereby the lightning protection effect and the lightning protection safety of target equipment can be improved, and the protection capability of the equipment to lightning activities is further facilitated to be improved.

Therefore, the lightning protection method based on high-frequency isolation described in the implementation fig. 1 can collect lightning stroke data, judge whether lightning stroke exists according to the content included in the lightning stroke data, and execute target operation matched with lightning stroke current when judging that the lightning stroke exists, wherein the target operation comprises the operation of reducing the lightning stroke current output to target equipment and/or performing ground discharge on the lightning stroke current, so that the accuracy of determining that the lightning stroke exists can be improved, damage to equipment caused by the lightning stroke can be prevented, the lightning protection effect and the lightning protection safety of the equipment can be improved, and the protection capability of the equipment on lightning activities can be improved.

Example two

Referring to fig. 2, fig. 2 is a flow chart of a lightning protection method based on high frequency isolation according to an embodiment of the invention. The lightning protection method based on high-frequency isolation described in fig. 2 can be applied to the lightning protection device based on high-frequency isolation, and also can be applied to a cloud server or a local server based on lightning protection of high-frequency isolation. As shown in fig. 2, the high frequency isolation-based lightning protection method may include the following operations:

201. lightning stroke data is collected, wherein the lightning stroke data comprises lightning stroke current.

202. And judging whether lightning stroke exists or not according to the content included in the lightning stroke data.

203. When it is determined that there is a lightning strike, performing a target operation that matches the lightning strike current, wherein the target operation includes reducing the lightning strike current output to the target device and/or performing a bleeder operation to ground on the lightning strike current.

In the embodiment of the present invention, for other descriptions of step 201 to step 203, please refer to the detailed descriptions of step 101 to step 103 in the first embodiment, and the description of the embodiment of the present invention is omitted.

204. Detecting whether a bleeder current is back flowing to the target device, wherein the bleeder current is a lightning strike current from a bleeder to ground.

In the embodiment of the present invention, when the determination result in step 204 is used to indicate that the leakage current is flowing back to the target device, step 205 is triggered and executed; when the determination result in step 204 is used to indicate that the leakage current is not flowing back to the target device, the process is ended.

205. When the drain current is detected to flow back to the target device, a blocking operation is performed on the drain current.

In the embodiment of the invention, the blocking operation on the leakage current can be performed by a high-frequency isolation suppressor preset in the circuit. The high-frequency isolation inhibitor is used for blocking the leakage current, so that the lightning current and/or the lightning voltage in the lightning can be prevented from invading the target equipment, and the target equipment is prevented from being damaged.

In the embodiment of the invention, further optionally, the high-frequency isolation inhibitor performs blocking operation on the leakage current, and can also effectively prevent ground potential counterattack of lightning stroke and prevent damage of target equipment caused by reverse flow of the leakage current. It should be noted that, when the ground potential is countered to the external lightning protection system (such as lightning rod, lightning protection net, etc.) of the building and is struck by lightning, dangerous overvoltage is generated at two ends of the grounding resistor, and the overvoltage is introduced into the device by the grounding wire of the device, the external lightning protection system of the building or other natural lightning receiving objects (various pipelines, cable shielding pipes, etc.) of other nearby buildings, and then the damage phenomenon of the device is caused. Ground potential counterattack not only jeopardizes equipment in the present building, but also in neighboring buildings that, although not directly struck by lightning, will, after a nearby building is struck by lightning, the transient high potential will be conducted along the underground piping to the lines in the equipment grounding system in the neighboring building counterattack the equipment connected to these lines, causing damage to the transient high potential. When the leakage current is detected to flow back to the target equipment, blocking operation is carried out on the leakage current, damage to the target equipment caused by invasion of lightning current can be effectively prevented, ground potential counterattack can be effectively prevented, damage to equipment and buildings adjacent to the equipment caused by lightning stroke can be prevented, and accordingly lightning protection effect and lightning protection safety of the equipment can be improved, and protection capability of the equipment on lightning activity can be improved.

Therefore, implementing the lightning protection method based on high-frequency isolation described in fig. 2 can collect lightning stroke data, determine whether lightning stroke exists according to the content included in the lightning stroke data, and when it is determined that lightning stroke exists, execute target operation matched with lightning stroke current, where the target operation includes reducing lightning stroke current output to target equipment and/or performing operation of discharging the lightning stroke current to ground, detect whether the leakage current is reversed to the target equipment, and when it is detected that the leakage current is reversed to the target equipment, perform blocking operation on the leakage current, and can block the leakage current by determining whether the leakage current is reversed to the target equipment, if so, thereby being beneficial to preventing damage to equipment caused by lightning stroke, and further being beneficial to improving lightning protection effect and lightning protection safety of the equipment, and being beneficial to improving protection capability of the equipment to lightning activity.

In an alternative embodiment, after acquiring lightning strike data, the method further comprises:

and uploading the lightning stroke data to a preset cloud platform to trigger the cloud platform to monitor target load equipment, wherein the target load equipment is load equipment associated with the cloud platform.

In this alternative embodiment, the number of the target load devices may be one or more, which is not limited in the embodiment of the present invention.

In this optional embodiment, the lightning stroke data is uploaded to the preset cloud platform, which may be uploaded through an RS485 communication mode, or may be uploaded through a 4G communication mode, or may be uploaded by combining the RS485 communication mode and the 4G communication mode, which is not limited in the embodiment of the present invention. It should be noted that, the RS485 communication mode is a typical serial communication standard, and the RS485 communication mode has good noise interference resistance. In this way, the lightning stroke data is uploaded to the preset cloud platform in an RS485 communication mode and/or a 4G communication mode, so that the efficiency of uploading the lightning stroke data to the preset cloud platform can be improved, and the efficiency of triggering the cloud platform to monitor target load equipment can be improved.

Therefore, by implementing the method described by the optional embodiment, lightning stroke data can be uploaded to a preset cloud platform so as to trigger the cloud platform to monitor the target load equipment, so that the efficiency of triggering the cloud platform to monitor the target load equipment can be improved, damage to the target load equipment caused by lightning stroke can be prevented, and the protection capability of the target load equipment on lightning activities can be improved.

In another alternative embodiment, after performing the target operation matched to the lightning strike current, the method further comprises:

generating a lightning stroke rule corresponding to a preset time period according to the lightning stroke information;

predicting a lightning strike trend of the lightning activity according to a lightning strike rule, wherein the lightning strike trend comprises one or more of a predicted time of the next lightning strike of the lightning activity, a predicted place of the next lightning strike of the lightning activity, a predicted current value of the next lightning strike of the lightning activity and a predicted damage condition of the next lightning strike of the lightning activity to target load equipment;

In this optional embodiment, optionally, the lightning strike information may further include a lightning cloud position corresponding to the historical lightning strike time, and a lightning cloud height corresponding to the historical lightning strike time. Further optionally, generating, according to the lightning strike information, a lightning strike rule corresponding to the preset time period may include: according to the lightning stroke information, the lightning stroke information is input into a preset lightning stroke statistical model, a lightning stroke rule corresponding to the preset time period is generated, and thus the accuracy of the lightning trend of the follow-up prediction of the lightning activity can be improved by inputting the lightning stroke information into the preset lightning stroke statistical model, the lightning protection effect and the lightning protection safety of the target load equipment are improved, and the protection capability of the target load equipment on the lightning activity is improved.

In this alternative embodiment, the predicted location of the next lightning stroke of the lightning activity may optionally comprise the longitude and latitude of the predicted location. Further optionally, when the location corresponding to the longitude and latitude of the predicted location of the next lightning stroke of the lightning activity is a forest, and the predicted current value of the next lightning stroke of the lightning activity is greater than a preset safe current value, determining that there is a risk of lightning causing a forest fire, analyzing the risk degree of lightning causing the forest fire risk, and when the risk degree is greater than a preset degree threshold, uploading the lightning trend to the cloud platform to trigger the cloud platform to send warning information to fire protection, where the warning information includes one or more of the location corresponding to the longitude and latitude of the predicted location of the next lightning stroke of the lightning activity, the time of the next lightning stroke of the lightning activity, the number of lightning strokes in the next preset time period, and the surrounding environment of the location corresponding to the longitude and latitude of the predicted location of the next lightning stroke of the lightning activity, where the lightning stroke is 15 minutes 23 seconds, and the risk of causing a mountain fire is predicted, and the warning information may be "the location of the lightning stroke is the north of the mountain in time". By analyzing the lightning trend, when the lightning trend is used for representing that the safety risk exists, the safety risk is analyzed, and the operation corresponding to the safety risk is executed, so that the lightning protection safety of the target load equipment can be improved, and the damage caused by lightning strike to the environments such as forests can be improved.

Therefore, the method described by implementing the alternative embodiment can acquire and analyze the historical lightning stroke data in the past preset time period to obtain the lightning stroke information, generate the corresponding lightning stroke rule in the preset time period according to the lightning stroke information, predict the lightning stroke trend of the lightning activity according to the lightning stroke rule, and upload the lightning stroke trend to the cloud platform to trigger the cloud platform to execute the operation matched with the lightning stroke trend, thereby being beneficial to improving the lightning protection safety of equipment and environment, and further being beneficial to improving the protection capability of the equipment and the environment to the lightning activity.

In yet another alternative embodiment, uploading the lightning trend to the cloud platform to trigger the cloud platform to perform an operation matching the lightning trend on the target load device, including:

In this alternative embodiment, the predicted time may alternatively be a time before the time of the predicted next lightning stroke. Therefore, the power supply corresponding to the target load equipment is cut off before the next lightning strike time, the damage to the target load equipment caused by the lightning strike can be prevented, the lightning protection effect and the lightning protection safety of the target load equipment can be improved, and the protection capability of the target load equipment on lightning activities can be improved.

In this optional embodiment, further optionally, the lightning trend may further include an activity path of lightning in a future preset time period, one or more of a time corresponding to each lightning strike in the future preset time period, a place corresponding to each lightning strike in the future preset time period, a lightning strike current value corresponding to each lightning strike in the future preset time period, and further, a visual graph such as a topography map or a waveform map may be generated from the lightning trend, so that by means of the content included in the lightning trend and the visual graph, a manager can intuitively know the lightning trend, so that the manager can execute a corresponding operation in time according to the lightning trend, which is beneficial to enabling the manager to provide technical support in time according to the lightning trend, and to improve a lightning protection effect and lightning protection security of the target load device, and to improve a protection capability of the target load device on the lightning activity.

In this optional embodiment, further optionally, when the lightning trend is used to indicate that the next lightning strike of the lightning strike activity can cause the electric leakage of the target load device, it is determined whether the electric element corresponding to the predicted electric leakage phenomenon of the target load device has a potential safety hazard problem, where the electric element may include an electric wire and/or a circuit, and when it is determined that the electric element corresponding to the electric leakage phenomenon of the target load device has the potential safety hazard problem, the potential safety hazard problem is analyzed to obtain a potential safety hazard cause, and the potential safety hazard problem and the potential safety hazard cause are uploaded to the cloud platform to trigger the cloud platform to execute the repair or replacement operation on the electric element corresponding to the target load device. The potential safety hazard problem of the electrical element corresponding to the leakage phenomenon of the target load equipment is judged, the potential safety hazard cause is further analyzed and uploaded to the cloud platform, so that the cloud platform is triggered to execute corresponding operation, the intelligence of the cloud platform can be enriched, the lightning protection effect and the lightning protection safety of the target load equipment are improved, and the lightning protection capability of the target load equipment to lightning activities is improved.

Therefore, when the method described by the optional embodiment is implemented, the lightning trend is uploaded to the cloud platform to trigger the cloud platform to execute the corresponding operation when the lightning trend can cause the damage of the target load equipment, so that the intelligence of the cloud platform can be enriched, the lightning protection effect and the lightning protection safety of the target load equipment are improved, and the protection capability of the target load equipment on the lightning activity is improved.

In yet another alternative embodiment, the method further comprises:

receiving feedback information of the cloud platform, wherein the feedback information comprises one or more of a function of damaging target load equipment and a time of damaging the target load equipment;

uploading the operation trend and the protection scheme to the cloud platform to trigger the cloud platform to execute the operation matched with the protection scheme on the target load equipment.

In this alternative embodiment, the feedback information may optionally further include one or more of a device damaged by the target load device, and a number of devices damaged by the target load device. Further, according to the time when the target load equipment generates the electric leakage, whether the cause of the electric leakage of the target load equipment is related to lightning stroke or not can be judged. For example, when the feedback information is used for indicating that the target load device has the electric leakage phenomenon, analyzing the reason that the target load device has the electric leakage phenomenon, generating an operation trend of the target load device, when the operation trend is used for indicating that the target load device continues to operate and can cause a fire disaster, making a protection scheme corresponding to the operation trend, uploading the operation trend and the protection scheme to the cloud platform to trigger the cloud platform to execute the operation matched with the protection scheme on the target load device, wherein the protection scheme can comprise one or more of repairing a circuit device generating the electric leakage phenomenon in the target load device, cutting off a power supply corresponding to the target load device, and reminding a place where the fire disaster occurs to be prepared in advance. Therefore, the operation trend and the protection scheme are uploaded to the cloud platform to trigger the cloud platform to execute corresponding operation, so that the target load equipment can be prevented from being damaged further, and the safety of using the target load equipment is improved.

Therefore, the method described by implementing the alternative embodiment can receive and analyze the feedback information of the cloud platform, generate the operation trend of the target load device, and formulate a corresponding protection scheme, and upload the operation trend and the protection scheme to the cloud platform to trigger the cloud platform to execute the operation matched with the protection scheme, so that further damage to the target load device can be avoided, and the safety of using the target load device is improved.

Example III

Referring to fig. 3, fig. 3 is a schematic structural diagram of a lightning protection device based on high-frequency isolation according to an embodiment of the present invention. As shown in fig. 3, the lightning protection device based on high-frequency isolation includes:

the acquisition module 301 is configured to acquire lightning strike data, where the lightning strike data includes lightning strike current.

A judging module 302, configured to judge whether there is a lightning strike according to the content included in the lightning strike data.

An execution module 303, configured to execute a target operation matched to the lightning current when the determination module 302 determines that there is a lightning strike, where the target operation includes reducing the lightning strike current output to the target device and/or performing an operation of discharging the lightning strike current to the ground.

It can be seen that implementing the apparatus described in fig. 3 can collect lightning stroke data, determine whether there is a lightning stroke according to the content included in the lightning stroke data, and execute a target operation matched with the lightning stroke current when it is determined that there is a lightning stroke, where the target operation includes reducing the lightning stroke current output to the target device and/or executing an operation of discharging the lightning stroke current to the ground, which can be beneficial to improving the accuracy of determining that there is a lightning stroke, thereby being beneficial to preventing the device from being damaged due to the lightning stroke, further being beneficial to improving the lightning protection effect and the lightning protection safety of the device, and being beneficial to improving the protection capability of the device to lightning activities.

In an alternative embodiment, as shown in fig. 4, the apparatus further comprises:

the detection module 304 is configured to detect whether a bleeder current is back-flowed to the target device, where the bleeder current is a lightning current from a discharge to ground;

and a blocking module 305 for performing a blocking operation on the drain current when the detection module 304 detects that the drain current is flowing back to the target device.

Therefore, the device described in fig. 4 can detect whether the leakage current flows back to the target device, and when the leakage current flows back to the target device, the blocking operation is performed on the leakage current, and if the leakage current flows back to the target device, the leakage current is blocked, so that damage to the device caused by lightning stroke is prevented, the lightning protection effect and the lightning protection safety of the device are improved, and the protection capability of the device to lightning activity is improved.

In another alternative embodiment, as shown in fig. 4, the apparatus further comprises:

the uploading module 306 is configured to upload lightning stroke data to a cloud platform set in advance after the lightning stroke data is collected by the collecting module 301, so as to trigger the cloud platform to monitor a target load device, where the target load device is a load device associated with the cloud platform.

Therefore, the device described in fig. 4 can upload lightning stroke data to the preset cloud platform to trigger the cloud platform to monitor the target load equipment, which can be beneficial to preventing the damage of the target load equipment caused by lightning stroke, thereby being beneficial to improving the lightning protection effect and the lightning protection safety of the target load equipment, and further being beneficial to improving the protection capability of the target load equipment to lightning activities.

In yet another alternative embodiment, as shown in fig. 4, the apparatus further comprises:

an obtaining module 307, configured to obtain historical lightning stroke data in a past preset time period after the executing module 303 executes a target operation matched with the lightning stroke current;

the analysis module 308 is configured to analyze the historical lightning stroke data to obtain corresponding lightning stroke information in a preset time period, where the lightning stroke information includes one or more of a lightning stroke number, a lightning stroke place, a lightning stroke time and a current value of each lightning stroke in the preset time period;

a generating module 309, configured to generate a lightning strike rule corresponding to a preset duration according to the lightning strike information;

the prediction module 310 is configured to predict a lightning strike trend of the lightning activity according to a lightning strike rule, where the lightning strike trend includes one or more of a predicted time of a next lightning strike of the lightning activity, a predicted location of a next lightning strike of the lightning activity, a predicted current value of a next lightning strike of the lightning activity, and a predicted damage condition of the next lightning strike of the lightning activity to the target load device;

The uploading module 306 is further configured to upload the lightning trend to the cloud platform, so as to trigger the cloud platform to perform an operation matching the lightning trend on the target load device.

Therefore, the device described in fig. 4 can acquire and analyze historical lightning stroke data in a past preset time period to obtain lightning stroke information, generate a lightning stroke rule corresponding to the lightning stroke information in the preset time period according to the lightning stroke information, predict a lightning stroke trend of lightning activity according to the lightning stroke rule, and upload the lightning stroke trend to the cloud platform so as to trigger the cloud platform to execute an operation matched with the lightning stroke trend, so that the lightning protection safety of equipment and environment can be improved, and the protection capability of the equipment and the environment on the lightning activity can be improved.

In yet another alternative embodiment, the uploading module 306 uploads the lightning trend to the cloud platform, so as to trigger the cloud platform to perform an operation matching the lightning trend on the target load device specifically includes:

Therefore, when the device described in fig. 4 is implemented, the lightning trend can be uploaded to the cloud platform to trigger the cloud platform to execute the corresponding operation when the lightning trend can cause the damage of the target load equipment, so that the intelligence of the cloud platform can be enriched, the lightning protection effect and the lightning protection safety of the target load equipment can be improved, and the protection capability of the target load equipment on the lightning activity can be improved.

In yet another alternative embodiment, the apparatus further comprises:

the receiving module 311 is configured to receive feedback information of the cloud platform, where the feedback information includes one or more of a function of damaging the target load device and a time of damaging the target load device;

the analysis module 308 is further configured to analyze the feedback information, generate an operation trend of the target load device, and formulate a protection scheme corresponding to the operation trend;

the uploading module 306 is further configured to upload the operation trend and the protection scheme to the cloud platform, so as to trigger the cloud platform to perform an operation matched with the protection scheme on the target load device.

Therefore, the device described in fig. 4 can be implemented to receive and analyze feedback information of the cloud platform, generate an operation trend of the target load device, and formulate a corresponding protection scheme, and upload the operation trend and the protection scheme to the cloud platform to trigger the cloud platform to execute an operation matched with the protection scheme, so that further damage to the target load device can be avoided, and the safety of using the target load device is improved.

In yet another alternative embodiment, the determining module 302 determines whether a lightning strike exists according to the content included in the lightning strike data by:

and an execution module 303, configured to trigger the cloud platform to execute an operation of evaluating lightning protection performance of the target load device when the judgment module 302 judges that there is no lightning strike, where the lightning protection performance includes one or more of a function, an operation temperature, an operation humidity, and a circuit operation condition of the lightning protection device.

Therefore, the device described in fig. 4 can be implemented to determine whether the collected lightning current is greater than a preset current threshold, if the collected lightning current is greater than or equal to the current threshold, then it is determined that lightning is present, if the collected lightning current is less than the current threshold, then it is determined that lightning is not present, when lightning is not present, the cloud platform is triggered to execute the operation of evaluating the lightning protection performance of the target load device, which is beneficial to improving the accuracy of determining that lightning is present, thereby being beneficial to preventing damage to the device caused by lightning, further being beneficial to improving the lightning protection effect and the lightning protection safety of the device, and being beneficial to improving the protection capability of the device to lightning activities.

Example IV

Referring to fig. 5, fig. 5 is a schematic structural diagram of a lightning protection device based on high-frequency isolation according to an embodiment of the invention. As shown in fig. 5, the high frequency isolation-based lightning protection device may include:

a memory 401 storing executable program codes;

a processor 402 coupled with the memory 401;

the processor 402 invokes executable program code stored in the memory 401 to perform the steps in the high frequency isolation based lightning protection method described in the first or second embodiment of the present invention.

Example five

The embodiment of the invention discloses a computer storage medium which stores computer instructions for executing the steps in the lightning protection method based on high-frequency isolation described in the first embodiment or the second embodiment of the invention when the computer instructions are called.

Example six

Embodiments of the present invention disclose a computer program product comprising a non-transitory computer readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform the steps of the high frequency isolation based lightning protection method described in embodiment one or embodiment two.

The apparatus embodiments described above are merely illustrative, wherein the modules illustrated as separate components may or may not be physically separate, and the components shown as modules may or may not be physical, i.e., may be located in one place, or may be distributed over a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above detailed description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course by means of hardware. Based on such understanding, the foregoing technical solutions may be embodied essentially or in part in the form of a software product that may be stored in a computer-readable storage medium including Read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), programmable Read-Only Memory (Programmable Read-Only Memory, PROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), one-time programmable Read-Only Memory (OTPROM), electrically erasable programmable Read-Only Memory (EEPROM), compact disc Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM) or other optical disc Memory, magnetic disc Memory, tape Memory, or any other medium that can be used for computer-readable carrying or storing data.

Finally, it should be noted that: the embodiment of the invention discloses a lightning protection method and device based on high-frequency isolation, which are disclosed by the embodiment of the invention only for illustrating the technical scheme of the invention, but not limiting the technical scheme; although the invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that; the technical scheme recorded in the various embodiments can be modified or part of technical features in the technical scheme can be replaced equivalently; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A lightning protection method based on high frequency isolation, the method comprising:

performing a target operation that matches the lightning strike current when it is determined that the lightning strike is present, wherein the target operation includes reducing the lightning strike current output to a target device and/or performing an operation of bleeding the lightning strike current to ground;

Uploading the lightning stroke data to a preset cloud platform to trigger the cloud platform to monitor target load equipment, wherein the target load equipment is load equipment associated with the cloud platform;

after the performing the target operation matched to the lightning strike current, the method further comprises:

Uploading the lightning strike trend to the cloud platform to trigger the cloud platform to execute the operation matched with the lightning strike trend on the target load equipment.

2. The high frequency isolation-based lightning protection method of claim 1, further comprising:

3. The high frequency isolation-based lightning protection method of claim 2, wherein uploading the lightning strike trend to the cloud platform to trigger the cloud platform to perform an operation on the target load device that matches the lightning strike trend comprises:

when the lightning strike trend is used for indicating that the next lightning strike of the lightning activity can cause the electric leakage of the target load equipment, uploading the lightning strike trend to the cloud platform so as to trigger the cloud platform to execute the operation of cutting off the power supply corresponding to the target load equipment at the predicted moment.

4. A method of high frequency isolation based lightning protection according to claim 3, further comprising:

5. The lightning protection method based on high-frequency isolation according to claim 4, wherein the determining whether there is a lightning strike according to the content included in the lightning strike data comprises:

and, the method further comprises:

6. A lightning protection device based on high frequency isolation, the device comprising:

the lightning stroke data comprises lightning stroke current;

an execution module for executing a target operation matched with the lightning current when the judgment module judges that the lightning stroke exists, wherein the target operation comprises an operation of reducing the lightning current output to target equipment and/or executing earth leakage on the lightning current;

the uploading module is used for uploading the lightning stroke data to a preset cloud platform after the acquisition module acquires the lightning stroke data so as to trigger the cloud platform to monitor target load equipment, wherein the target load equipment is load equipment associated with the cloud platform;

the uploading module is further configured to upload the lightning strike trend to the cloud platform, so as to trigger the cloud platform to perform an operation matched with the lightning strike trend on the target load device.

7. A lightning protection device based on high frequency isolation, the device comprising:

a memory storing executable program code;

a processor coupled to the memory;

the processor invokes the executable program code stored in the memory to perform the high frequency isolation based lightning protection method of any of claims 1-5.

8. A computer-storable medium storing computer instructions for performing the high frequency isolation based lightning protection method according to any of claims 1 to 5 when called.