CN115313321A - Lightning protection monitoring system and application method thereof - Google Patents
Lightning protection monitoring system and application method thereof Download PDFInfo
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- CN115313321A CN115313321A CN202210864400.1A CN202210864400A CN115313321A CN 115313321 A CN115313321 A CN 115313321A CN 202210864400 A CN202210864400 A CN 202210864400A CN 115313321 A CN115313321 A CN 115313321A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention relates to a lightning protection monitoring system and an application method thereof, and belongs to the technical field of lightning protection. In the lightning protection monitoring system, a data acquisition unit is used for acquiring the working state of a grounding grid, lightning current data of a lightning rod, overvoltage data and lightning induced current data in a power grid; the lightning protection monitoring unit is used for judging whether to send out a lightning stroke early warning control signal or not based on the data acquired by the data acquisition unit; the lightning protection unit is used for executing lightning protection operation and sending out lightning early warning when receiving the lightning early warning control signal of the lightning protection monitoring unit. According to the lightning protection monitoring system, data acquired by the data acquisition unit are compared with historical data, when lightning does not trigger the lightning protection function of the surge protection module, the relay is controlled to be disconnected through the prejudgment and control module, so that electronic equipment in the circuit is protected, and the lightning protection monitoring system can protect user microelectronic system equipment to the maximum extent in lightning weather through lightning protection operation of active power failure.
Description
Technical Field
The invention relates to a lightning protection monitoring system and an application method thereof, and belongs to the technical field of lightning protection.
Background
There are millions of lightning strikes in nature every year, and the losses caused by lightning have risen to the third place of natural disasters. Only in China, the casualties caused by lightning strike reach 3-4 thousand people every year, and the property loss reaches 50-100 million yuan RMB.
The range involved by lightning disasters is almost spread throughout all walks of life. Advanced microelectronic devices such as measurement, monitoring, protection, communication and computer networks, which use large-scale integrated circuits as core components, are widely applied to various fields of modern life, and the microelectronic devices generally have the defect of weak tolerance to transient overvoltage and overcurrent, and the transient overvoltage can not only cause misoperation of electronic devices, but also cause larger direct economic loss and wide social influence. The strong transient current generated by lightning not only causes serious damage to buildings and equipment at the lightning strike point, but also causes damage to adjacent electronic equipment and power transmission lines due to the wide-spectrum and strong-amplitude electromagnetic pulse excited between the ground and the ionized layer by the lightning strike.
According to the requirements of GB50057-2010 lightning protection design Specification for buildings, the lightning protection for buildings is a facility for leading lightning discharge current to the earth: lightning rods (lightning strips), grounding nets around the building, grounding systems and the like are used for preventing fire and mechanical damage of the building when lightning strikes the building; however, with the widespread use of microelectronic devices and large-scale integrated circuits, lightning damage to the microelectronic system devices of users cannot be reduced by conventional lightning protection methods. Therefore, developing a lightning protection monitoring system to reduce the lightning damage of the microelectronic system devices of the users is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to solve the technical problem of providing various lightning protection monitoring systems and application methods thereof aiming at the defects of the prior art.
The technical scheme provided by the invention for solving the technical problems is as follows: a lightning protection monitoring system comprises a data acquisition unit, a lightning protection monitoring unit, a lightning protection unit and a power supply module;
the data acquisition unit is used for acquiring the working state of a grounding grid, lightning current data of a lightning rod, overvoltage data and lightning induction current data in a power grid;
the lightning protection monitoring unit is used for judging whether to send out a lightning stroke early warning control signal or not based on the data acquired by the data acquisition unit;
the lightning protection unit is used for executing lightning protection operation and sending lightning early warning when receiving the lightning early warning control signal of the lightning protection monitoring unit;
the power supply module is used for supplying power to the lightning protection monitoring unit.
The improvement of the technical scheme is as follows: the lightning protection monitoring unit comprises a data integration module, a data processing module and a control module;
the data integration module is used for receiving and integrating the data acquired by all the data acquisition units;
the data processing module is used for judging whether a lightning stroke early warning control signal needs to be sent or not based on lightning current historical data of a lightning rod, overvoltage historical data in a power grid, lightning induced current historical data and the working state of a grounding grid when equipment is damaged due to lightning stroke;
the control module is used for sending out a control signal for executing lightning protection operation and sending out lightning early warning to the lightning protection unit when the data processing module judges that the lightning early warning control signal needs to be sent out.
The improvement of the technical scheme is as follows: the data processing module comprises a historical data storage module and an industrial computer;
the historical data storage module is used for storing lightning current historical data of the lightning rod, overvoltage historical data in a power grid and lightning induced current historical data when equipment is damaged due to lightning stroke;
and the industrial computer is used for comparing and calculating the data acquired by the data acquisition unit with the data stored in the historical data storage module and judging whether a lightning stroke early warning control signal needs to be sent out or not.
The improvement of the technical scheme is as follows: the data acquisition unit comprises a wireless communication module, a grounding grid monitoring module, a current sensor, a voltage transformer, a current-voltage conversion module and a current transformer;
the grounding grid monitoring module is used for monitoring the working state of the grounding grid by detecting the equivalent impedance of the grounding grid;
the current sensor is connected with the lightning rod and used for collecting lightning current data of the lightning rod;
the voltage transformer is used for acquiring overvoltage data in a power grid;
the current transformer is used for acquiring lightning induced current data;
the current-voltage conversion module is used for converting the lightning induced current data acquired by the current transformer into a voltage signal;
the wireless communication module is used for transmitting each item of collected data to the lightning protection monitoring unit through a wireless public network.
The improvement of the technical scheme is as follows: the lightning protection unit comprises a surge protection module, an audible and visual alarm module and at least one relay;
the surge protection module is used for protecting electronic equipment in the circuit when lightning strike occurs;
the sound and light alarm module is used for sending out sound and light alarm after receiving the lightning stroke early warning control signal;
the relay is used for executing lightning protection operation after receiving the lightning stroke early warning control signal, and the circuit is disconnected, so that electronic equipment in the circuit is protected.
An application method of a lightning protection monitoring system comprises the following steps:
(1) The lightning current data of the lightning rod is collected by a current sensor, the overvoltage data in a power grid is collected by a voltage transformer, the overvoltage data in the power grid is collected by the voltage transformer, and the lightning induction current data is collected by the current transformer and converted into a voltage signal by a current-voltage conversion module;
(2) The wireless communication module is used for transmitting various acquired data to the data integration module through a wireless public network;
(3) The data integration module receives and integrates the data acquired by all the data acquisition units and then transmits the data to the data processing module;
(4) An industrial computer in the data processing module compares the acquired data with data in the historical data storage module and judges whether a lightning stroke early warning control signal needs to be sent out or not;
(5) When the industrial computer judges that a lightning stroke early warning control signal needs to be sent out, the judgment result is sent to the control module, and the control module sends out a control signal for executing lightning stroke prevention operation and sending out lightning stroke early warning to the lightning protection unit;
(6) When the lightning protection unit receives a lightning stroke early warning control signal, the sound-light alarm module sends out sound-light alarm, the relay executes lightning stroke prevention operation, and the circuit is disconnected, so that electronic equipment in the circuit is protected.
The improvement of the technical scheme is as follows: the method for judging whether the lightning stroke early warning control signal needs to be sent out in the step (4) specifically comprises the following steps:
A. the industrial computer respectively compares and calculates the data acquired by the data acquisition unit with the data stored in the historical data storage module, the error percentage obtained by comparing and calculating the lightning current data with the lightning current historical data is P1, the error percentage obtained by comparing and calculating the overvoltage data with the overvoltage historical data is P2, and the error percentage obtained by comparing and calculating the lightning induction current data with the lightning induction current historical data is P3;
B. setting an error percentage threshold value as P0;
C. and when any one of the numerical values P1, P2 and P3 is less than P0, judging that a lightning stroke early warning control signal needs to be sent out.
The improvement of the technical scheme is as follows: the percentage error threshold P0 is 5%.
The invention adopts the technical scheme that the method has the beneficial effects that:
according to the lightning protection monitoring system and the application method thereof, data acquired by the data acquisition unit are compared with historical data, when the lightning protection function of the surge protection module is not triggered by lightning, if any numerical value of the three error percentages P1, P2 and P3 is smaller than P0, the control module controls the relay to break the circuit so as to protect electronic equipment in the circuit, and the lightning protection monitoring system can protect user microelectronic system equipment to the maximum extent in lightning weather through lightning protection operation of active power failure.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a lightning protection monitoring system according to an embodiment of the invention;
FIG. 2 is a schematic diagram of data processing modules of a lightning protection monitoring system according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a data acquisition unit of a lightning protection monitoring system according to an embodiment of the invention;
fig. 4 is a schematic view of a lightning protection unit of a lightning protection monitoring system according to an embodiment of the invention.
Detailed Description
Examples
The lightning protection monitoring system of the embodiment, as shown in fig. 1-4, includes a data acquisition unit, a lightning protection monitoring unit, a lightning protection unit, and a power module;
the data acquisition unit is used for acquiring the working state of a grounding grid, lightning current data of a lightning rod, overvoltage data and lightning induction current data in a power grid;
the lightning protection monitoring unit is used for judging whether to send out a lightning stroke early warning control signal or not based on the data acquired by the data acquisition unit;
the lightning protection unit is used for executing lightning protection operation and sending lightning early warning when receiving the lightning early warning control signal of the lightning protection monitoring unit;
the power supply module is used for supplying power to the lightning protection monitoring unit.
And a leakage protector is arranged between the power supply module and the lightning protection monitoring unit and is used for carrying out leakage and overload protection on the lightning protection monitoring unit.
In the lightning protection monitoring system of the present embodiment, as shown in fig. 1, the lightning protection monitoring unit includes a data integration module, a data processing module and a control module;
the data integration module is used for receiving and integrating the data acquired by all the data acquisition units;
the data processing module is used for judging whether a lightning stroke early warning control signal needs to be sent or not based on lightning current historical data of a lightning rod, overvoltage historical data in a power grid, lightning induced current historical data and the working state of a grounding grid when equipment is damaged due to lightning stroke;
and the control module is used for sending out a control signal for executing lightning protection operation and sending out lightning early warning to the lightning protection unit when the data processing module judges that the lightning early warning control signal needs to be sent out.
In the lightning protection monitoring system of the present embodiment, as shown in fig. 2, the data processing module includes a historical data storage module and an industrial computer;
the historical data storage module is used for storing lightning current historical data of the lightning rod, overvoltage historical data in a power grid and lightning induced current historical data when equipment is damaged due to lightning stroke;
and the industrial computer is used for comparing and calculating the data acquired by the data acquisition unit with the data stored in the historical data storage module and judging whether a lightning stroke early warning control signal needs to be sent out or not.
In the lightning protection monitoring system of the present embodiment, as shown in fig. 3, the data acquisition unit includes a wireless communication module, a grounding grid monitoring module, a current sensor, a voltage transformer, a current-voltage conversion module, and a current transformer;
the grounding grid monitoring module is used for monitoring the working state of the grounding grid by detecting the equivalent impedance of the grounding grid;
the current sensor is connected with the lightning rod and used for collecting lightning current data of the lightning rod;
the voltage transformer is used for acquiring overvoltage data in a power grid;
the current transformer is used for acquiring lightning induced current data;
the current-voltage conversion module is used for converting the lightning induced current data acquired by the current transformer into a voltage signal;
the wireless communication module is used for transmitting each item of collected data to the lightning protection monitoring unit through a wireless public network.
In the lightning protection monitoring system of the present embodiment, as shown in fig. 4, the lightning protection unit includes a surge protection module, an audible and visual alarm module, and at least one relay;
the surge protection module is used for protecting electronic equipment in the circuit when lightning strike occurs;
the sound and light alarm module is used for sending out sound and light alarm after receiving the lightning stroke early warning control signal;
the relay is used for executing lightning protection operation after receiving the lightning stroke early warning control signal, and the circuit is disconnected, so that electronic equipment in the circuit is protected.
The application method of the lightning protection monitoring system in the embodiment comprises the following steps:
(1) The lightning current data of the lightning rod is collected by the current sensor, the overvoltage data in the power grid is collected by the voltage transformer, and the lightning induction current data is collected by the current transformer and converted into a voltage signal through the current-voltage conversion module;
(2) The wireless communication module is used for transmitting various acquired data to the data integration module through a wireless public network;
(3) The data integration module receives and integrates the data acquired by all the data acquisition units and then transmits the data to the data processing module;
(4) An industrial computer in the data processing module compares the acquired data with data in the historical data storage module and judges whether a lightning stroke early warning control signal needs to be sent out or not;
the method for judging whether the lightning stroke early warning control signal needs to be sent out specifically comprises the following steps:
A. the industrial computer respectively compares and calculates the data acquired by the data acquisition unit with the data stored in the historical data storage module, the error percentage obtained by comparing and calculating the lightning current data with the lightning current historical data is P1, the error percentage obtained by comparing and calculating the overvoltage data with the overvoltage historical data is P2, and the error percentage obtained by comparing and calculating the lightning induction current data with the lightning induction current historical data is P3;
B. setting an error percentage threshold value as P0;
C. when any numerical value of P1, P2 and P3 is less than P0, judging that a lightning stroke early warning control signal needs to be sent out;
wherein the error percentage threshold P0 is 5%;
(5) When the industrial computer judges that a lightning stroke early warning control signal needs to be sent out, the judgment result is sent to the control module, and the control module sends out a control signal for executing lightning stroke prevention operation and sending out lightning stroke early warning to the lightning protection unit;
(6) When the lightning protection unit receives a lightning stroke early warning control signal, the sound-light alarm module sends out sound-light alarm, the relay executes lightning stroke prevention operation, and the circuit is disconnected, so that electronic equipment in the circuit is protected.
According to the lightning protection monitoring system and the application method thereof, data acquired by the data acquisition unit are compared with historical data, when the lightning protection function of the surge protection module is not triggered by lightning, if any numerical value of the three error percentages P1, P2 and P3 is smaller than P0, the control module controls the relay to break the circuit so as to protect electronic equipment in the circuit, and the lightning protection monitoring system can protect user microelectronic system equipment to the maximum extent in lightning weather through lightning protection operation of active power failure.
And based on the current big data processing, under the condition that the historical data in the historical data storage module is more and more abundant, the judgment accuracy of the lightning protection monitoring system is continuously improved.
The present invention is not limited to the above-described embodiments. All technical solutions formed by equivalent substitutions fall within the protection scope of the claims of the present invention.
Claims (8)
1. A lightning protection monitoring system, its characterized in that: the lightning protection monitoring device comprises a data acquisition unit, a lightning protection monitoring unit, a lightning protection unit and a power supply module;
the data acquisition unit is used for acquiring the working state of a grounding grid, lightning current data of a lightning rod, overvoltage data and lightning induction current data in a power grid;
the lightning protection monitoring unit is used for judging whether to send out a lightning stroke early warning control signal or not based on the data acquired by the data acquisition unit;
the lightning protection unit is used for executing lightning protection operation and sending lightning early warning when receiving the lightning early warning control signal of the lightning protection monitoring unit;
the power module is used for supplying power to the lightning protection monitoring unit.
2. The lightning protection monitoring system of claim 1, wherein: the lightning protection monitoring unit comprises a data integration module, a data processing module and a control module;
the data integration module is used for receiving and integrating the data acquired by all the data acquisition units;
the data processing module is used for judging whether a lightning stroke early warning control signal needs to be sent or not based on lightning current historical data of a lightning rod, overvoltage historical data in a power grid, lightning induced current historical data and the working state of a grounding grid when equipment is damaged due to lightning stroke;
and the control module is used for sending a control signal for executing lightning protection operation and sending lightning early warning to the lightning protection unit when the data processing module judges that the lightning early warning control signal needs to be sent.
3. The lightning protection monitoring system of claim 2, wherein: the data processing module comprises a historical data storage module and an industrial computer;
the historical data storage module is used for storing lightning current historical data of a lightning rod, overvoltage historical data in a power grid and lightning induced current historical data when equipment is damaged due to lightning stroke;
and the industrial computer is used for comparing and calculating the data acquired by the data acquisition unit with the data stored in the historical data storage module and judging whether a lightning stroke early warning control signal needs to be sent out or not.
4. The lightning protection monitoring system of claim 1, wherein: the data acquisition unit comprises a wireless communication module, a grounding grid monitoring module, a current sensor, a voltage transformer, a current-voltage conversion module and a current transformer;
the grounding grid monitoring module is used for monitoring the working state of the grounding grid by detecting the equivalent impedance of the grounding grid;
the current sensor is connected with the lightning rod and used for collecting lightning current data of the lightning rod;
the voltage transformer is used for acquiring overvoltage data in a power grid;
the current transformer is used for acquiring lightning induced current data;
the current-voltage conversion module is used for converting the lightning induced current data collected by the current transformer into voltage signals;
the wireless communication module is used for transmitting the acquired data to the lightning protection monitoring unit through a wireless public network.
5. The lightning protection monitoring system of claim 1, wherein: the lightning protection unit comprises a surge protection module, an audible and visual alarm module and at least one relay;
the surge protection module is used for protecting electronic equipment in the circuit when lightning strike occurs;
the sound and light alarm module is used for sending out sound and light alarm after receiving the lightning stroke early warning control signal;
the relay is used for executing lightning protection operation after receiving the lightning stroke early warning control signal, and disconnecting the circuit so as to protect the electronic equipment in the circuit.
6. An application method of a lightning protection monitoring system is characterized in that: the method comprises the following steps:
(1) The lightning current sensor acquires lightning current data of a lightning rod, the voltage transformer acquires overvoltage data in a power grid, the voltage transformer acquires overvoltage data in the power grid, and the current transformer acquires lightning induction current data and converts the lightning induction current data into a voltage signal through the current-voltage conversion module;
(2) The wireless communication module is used for transmitting various collected data to the data integration module through a wireless public network;
(3) The data integration module receives and integrates the data acquired by all the data acquisition units and then transmits the data to the data processing module;
(4) An industrial computer in the data processing module compares the acquired data with the data in the historical data storage module and judges whether a lightning stroke early warning control signal needs to be sent out or not;
(5) When the industrial computer judges that a lightning stroke early warning control signal needs to be sent out, the judging result is sent to the control module, and the control module sends out a control signal for executing lightning stroke prevention operation and sending out lightning stroke early warning to the lightning protection unit;
(6) When the lightning protection unit receives a lightning stroke early warning control signal, the sound-light alarm module sends out sound-light alarm, the relay executes lightning stroke prevention operation, and the circuit is disconnected, so that electronic equipment in the circuit is protected.
7. The method of claim 6, wherein the lightning protection monitoring system comprises: the method for judging whether the lightning stroke early warning control signal needs to be sent out in the step (4) specifically comprises the following steps:
A. the industrial computer respectively compares and calculates the data acquired by the data acquisition unit with the data stored in the historical data storage module, the error percentage obtained by comparing and calculating lightning current data and lightning current historical data is P1, the error percentage obtained by comparing and calculating overvoltage data and overvoltage historical data is P2, and the error percentage obtained by comparing and calculating lightning induced current data and lightning induced current historical data is P3;
B. setting an error percentage threshold value as P0;
C. and when any numerical value of P1, P2 and P3 is less than P0, judging that a lightning stroke early warning control signal needs to be sent out.
8. The method of claim 7, wherein the lightning protection monitoring system is applied by: the percentage error threshold P0 is 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210864400.1A CN115313321A (en) | 2022-07-21 | 2022-07-21 | Lightning protection monitoring system and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210864400.1A CN115313321A (en) | 2022-07-21 | 2022-07-21 | Lightning protection monitoring system and application method thereof |
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| CN115313321A true CN115313321A (en) | 2022-11-08 |
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| CN202210864400.1A Pending CN115313321A (en) | 2022-07-21 | 2022-07-21 | Lightning protection monitoring system and application method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116359597A (en) * | 2023-02-01 | 2023-06-30 | 珠海博威电气股份有限公司 | Method and device for measuring lightning parameters by medium-voltage switch |
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2022
- 2022-07-21 CN CN202210864400.1A patent/CN115313321A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116359597A (en) * | 2023-02-01 | 2023-06-30 | 珠海博威电气股份有限公司 | Method and device for measuring lightning parameters by medium-voltage switch |
| CN116359597B (en) * | 2023-02-01 | 2024-04-16 | 珠海博威电气股份有限公司 | Method and device for measuring lightning parameters by medium-voltage switch |
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