CN117572103A - Electric field remote sensing-based lightning strike electric quantity estimation method and measuring device - Google Patents
Electric field remote sensing-based lightning strike electric quantity estimation method and measuring device Download PDFInfo
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/24—Arrangements for measuring quantities of charge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/12—Measuring electrostatic fields or voltage-potential
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention belongs to the technical field of electric power, and particularly relates to a lightning strike electric quantity estimation method and a measuring device based on electric field remote sensing. The invention comprises the following steps: receiving an electric field signal generated by lightning strike; comparing the received electric field signal with the waveform of the electric field signal received before in the database to determine the type of lightning strike; receiving electric field electromagnetic waves generated by lightning strike through an antenna sensor to obtain a lightning strike point positioning result of the same place; and estimating the electric quantity during lightning strike according to the lightning strike point positioning result. According to the lightning protection and risk assessment method, the positioning result of the lightning point is determined through the device, and the estimation of the electric quantity generated during lightning is realized, so that effective support can be provided for lightning protection and risk assessment of the power system transmission and distribution line, and the lightning protection and risk assessment method has important practical significance for electricity utilization facilities and electricity utilization safety.
Description
Technical Field
The invention belongs to the technical field of electric power, and particularly relates to a lightning strike electric quantity estimation method and a measuring device based on electric field remote sensing.
Background
The lightning strike contains a large amount of energy, and a high temperature is generated at the moment of hitting an object. Therefore, when the electric equipment or the line is struck by lightning, the line is very easy to fuse, especially when the overhead line is ground wire and the wire are struck by lightning.
Therefore, it is necessary to estimate the amount of electricity according to the impact at the time of lightning strike to evaluate the damage that may be generated by the lightning strike so as to be able to prevent and minimize the loss to the electrical equipment and facilities in time.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a lightning strike electric quantity estimation method and a measuring device based on electric field remote sensing.
The purpose of the invention is to realize the estimation of the electric quantity generated during the thunder, and provide effective support for the lightning protection and risk assessment of the power system transmission line.
The technical scheme adopted by the invention for achieving the purpose is as follows:
a lightning strike electric quantity estimation method based on electric field remote sensing comprises the following steps:
receiving an electric field signal generated by lightning strike;
comparing the received electric field signal with the waveform of the electric field signal received before in the database to determine the type of lightning strike;
receiving electric field electromagnetic waves generated by lightning strike through an antenna sensor to obtain a lightning strike point positioning result of the same place;
and estimating the electric quantity during lightning strike according to the lightning strike point positioning result.
Still further, the receiving the electric field signal generated by the lightning strike includes: the electric field remote sensing part receives electric field signals generated by lightning strike by adopting an electric field antenna with the frequency band of 0.1Hz-50kHz, and records the change delta E of the electric field.
Further, the received electric field signal is compared with the waveform of the electric field signal received before in the database to determine the type of lightning strike; comparing the electric field signal waveforms with those in a background database to determine the type of lightning strike and distinguish cloud flash from ground flash; the similar electric field signal waveform comprises amplitude and frequency, and changes of the electric field signal waveform are recorded, wherein the changes comprise the amplitude and the waveform; if the cloud flash is generated, the size of the inter-cloud discharge is evaluated; if the lightning is ground flash, the lightning quantity is evaluated and calculated.
Further, the electric quantity during lightning strike is estimated according to the positioning result of the lightning strike point, and the electric quantity is shown as the following formula:
；
wherein x and y are distances from the planar coordinates of the lightning strike to the monitoring point; z represents the lightning strike height, namely the distance from the initial discharge point to the lightning strike point in the thundercloud, and z is obtained through positioning of an electric field antenna array, and epsilon is vacuum conductivity.
An electric field remote sensing-based lightning strike electricity measurement device, comprising: the device comprises an electric field remote sensing part, an electric field waveform processing and storing part and a data transmission and electric quantity estimation part; the electric field remote sensing part transmits an electric field signal to the electric field waveform processing and storing part through a communication line, then transmits monitoring data of each place to the monitoring master station through a network, and carries out electric quantity estimation at the master station; comparing the received electric field signal with the waveform of the electric field signal received before in the database to determine the type of lightning strike;
the electric field remote sensing part is an electric field antenna and is used for receiving electric field signals generated by lightning strike judged after the trigger is started; receiving electric field electromagnetic waves generated by lightning strike through an antenna sensor to obtain a lightning strike point positioning result of the same place;
the electric field waveform processing and storing section includes: integrator/signal amplification, signal trigger, GPS time, beidou satellite system, A/D converter and memory;
the data transmission and power estimation section includes: the system comprises a multi-signal collecting unit, an electric quantity estimation and analysis module and a memory;
the electric field remote sensing part is used for receiving electric field signals generated by lightning strike judged after the trigger is started;
the electric field waveform processing and storing part is used for carrying out integration, amplification and A/D conversion on the received electric field signal and storing the waveform data conversion result and GPS synchronization time;
the data transmission and electric quantity estimation part is used for transmitting the stored data to the central server, and estimating the electric quantity during thunder through comparing the monitored data, positioning the thunder points and estimating the electric quantity during thunder.
Further, the frequency band of the electric field antenna is 0.1Hz-50kHz.
Still further, the apparatus includes:
the first receiving module is used for receiving electric field signals generated by lightning strike;
the data comparison module is used for comparing the received electric field signal with the waveforms of the electric field signals received before in the database to determine the type of lightning strike;
the second receiving module is used for receiving electric field electromagnetic waves generated by lightning strike through the antenna sensor to obtain a lightning strike point positioning result of the same place;
and the estimation module is used for estimating the electric quantity during lightning strike according to the lightning strike point positioning result.
Still further, the electric field signal generated by the receiving lightning strike includes: the electric field remote sensing part receives an electric field signal generated by lightning strike by adopting an electric field antenna with the frequency band of 0.1Hz-50kHz, and records the change delta E of the electric field;
the received electric field signals are utilized for comparing monitoring data; comparing the electric field signal waveforms with those in a background database to determine the type of lightning strike and distinguish cloud flash from ground flash; the similar electric field signal waveform comprises amplitude and frequency, and changes of the electric field signal waveform are recorded, wherein the changes comprise the amplitude and the waveform; if the cloud flash is generated, the size of the inter-cloud discharge is evaluated; if the lightning is ground flash, evaluating and calculating the lightning quantity;
the electric quantity during lightning strike is estimated according to the lightning strike point positioning result, and the electric quantity during lightning strike is shown as the following formula:
wherein x and y are distances from the planar coordinates of the lightning strike to the monitoring point; z represents the vacuum conductivity obtained by electric field antenna array positioning.
A computer device comprising a storage medium, a processor and a computer program stored on the storage medium and executable on the processor, the processor implementing the steps of any one of the electric field remote sensing based lightning strike charge estimation methods when the computer program is executed.
A computer storage medium, characterized by: the computer storage medium stores a computer program, and the computer program realizes the steps of any lightning strike electric quantity estimation method based on electric field remote sensing when being executed by a processor.
The invention has the following beneficial effects and advantages:
according to the lightning protection and risk assessment method, the positioning result of the lightning point is determined through the device, and the estimation of the electric quantity generated during lightning is realized, so that effective support can be provided for lightning protection and risk assessment of the power system transmission and distribution line, and the lightning protection and risk assessment method has important practical significance for electricity utilization facilities and electricity utilization safety.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic view of the structure of the device of the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
The following describes some embodiments of the present invention with reference to fig. 1.
Example 1
The invention provides an embodiment, in particular to a lightning strike electric quantity measuring device based on electric field remote sensing. As shown in fig. 1, fig. 1 is a schematic structural view of the device of the present invention.
The invention comprises the following steps: the device comprises an electric field remote sensing part, an electric field waveform processing and storing part and a data transmission and electric quantity estimation part. The electric field remote sensing part transmits electric field signals to the electric field waveform processing and storing part through a communication line, then monitoring data of each place are transmitted to the monitoring master station through a 4G/5G network and the like, and electric quantity estimation is carried out at the master station.
The electric field remote sensing part is an electric field antenna, the frequency band of the electric field antenna is 0.1Hz-50kHz, and the electric field antenna can receive electric field signals generated by lightning strike judged after the trigger is started.
The electric field waveform processing and storing section includes: integrator/signal amplification, signal trigger, GPS time system or Beidou satellite system, A/D converter and memory.
The data transmission and power estimation section includes: the system comprises a multi-signal collecting unit, an electric quantity estimation and analysis module and a memory.
The electric field remote sensing part is used for receiving electric field signals generated by lightning strike judged after the trigger is started;
the electric field waveform processing and storing part is used for carrying out integration, amplification and A/D conversion on the received electric field signal and storing the waveform data conversion result and GPS synchronization time;
the data transmission and electric quantity estimation part is used for transmitting the stored data to the central server, and estimating the electric quantity during thunder through comparing the monitored data, positioning the thunder points and estimating the electric quantity during thunder.
Example 2
The invention also provides an embodiment, which is a lightning strike electric quantity estimation method based on electric field remote sensing, which is realized by using the lightning strike electric quantity measurement device based on electric field remote sensing according to the embodiment 1, and specifically comprises the following steps:
receiving an electric field signal generated by lightning strike. Specifically, an electric field remote sensing part of the device is utilized to receive an electric field signal generated by lightning strike, and the change of an electric field is recorded;
and comparing the received electric field signal with the waveforms of the electric field signals received before in the database to determine the type of lightning strike. The method specifically comprises the steps of comparing monitoring data by utilizing a received electric field signal; the type of lightning strike is determined mainly by comparison with similar electric field signal waveforms in a background database, wherein the similar electric field signal waveforms comprise amplitude and frequency, and whether cloud flash or ground flash is distinguished. If the cloud flash is generated, the size of the inter-cloud discharge is evaluated; if the lightning is ground flash, the lightning quantity is evaluated and calculated.
Receiving electric field electromagnetic waves generated by lightning strike through an antenna sensor to obtain a lightning strike point positioning result of the same place;
and estimating the electric quantity during lightning strike according to the lightning strike point positioning result.
Example 3
The invention also provides an embodiment, which is a lightning strike electric quantity estimation method based on electric field remote sensing, comprising the following steps:
the electric field remote sensing part receives an electric field signal generated by lightning strike by adopting an electric field antenna with the frequency band of 0.1Hz-50kHz, and records the change delta E of the electric field;
according to the positioning result of the lightning strike positioning system of the same place of the lightning strike electric quantity measuring device based on the electric field remote sensing in the embodiment 1, the electric quantity Q accompanying the lightning strike can be estimated by adopting the following formula;
wherein x and y are distances from the planar coordinates of the lightning strike to the monitoring point; z represents the lightning strike height, i.e. the distance from the initial discharge point to the lightning strike point in the thundercloud, and z can be obtained by positioning the electric field antenna array, and epsilon is the vacuum conductivity.
Example 4
The invention also provides an embodiment, which is a lightning strike electric quantity estimation device based on electric field remote sensing, comprising:
the first receiving module is used for receiving electric field signals generated by lightning strike. The device is particularly used for receiving electric field signals generated by lightning strike by utilizing an electric field remote sensing part of the device and recording the change of an electric field;
the data comparison module is used for comparing the monitoring data by utilizing the received electric field signal and the wave form of the electric field signal received before in the database, and determining the type of lightning strike;
the second receiving module is used for receiving electric field electromagnetic waves generated by lightning strike through the antenna sensor to obtain a lightning strike point positioning result of the same place;
and the estimation module is used for estimating the electric quantity during lightning by positioning the lightning point.
The device is used for realizing the operation steps of the lightning strike electric quantity estimation method based on electric field remote sensing, which is described in the embodiment 2.
Example 5
Based on the same inventive concept, the embodiment of the invention also provides a computer device, which comprises a storage medium, a processor and a computer program stored on the storage medium and capable of running on the processor. The processor executes the computer program to implement any one of the steps of the lightning strike capacity estimation method based on electric field remote sensing described in embodiment 2.
Example 6
Based on the same inventive concept, the embodiment of the present invention further provides a computer storage medium, where a computer program is stored, where the computer program when executed by a processor implements any one of the steps of the lightning strike electric quantity estimation method based on electric field remote sensing described in embodiment 2.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (10)
1. A lightning strike electric quantity estimation method based on electric field remote sensing is characterized by comprising the following steps: comprising the following steps:
receiving an electric field signal generated by lightning strike;
comparing the received electric field signal with the waveform of the electric field signal received before in the database to determine the type of lightning strike;
receiving electric field electromagnetic waves generated by lightning strike through an antenna sensor to obtain a lightning strike point positioning result of the same place;
and estimating the electric quantity during lightning strike according to the lightning strike point positioning result.
2. The method for estimating the lightning strike capacity based on electric field remote sensing according to claim 1, wherein the method comprises the following steps: the receiving of the electric field signal generated by lightning strike includes: the electric field remote sensing part receives electric field signals generated by lightning strike by adopting an electric field antenna with the frequency band of 0.1Hz-50kHz, and records the change delta E of the electric field.
3. The method for estimating the lightning strike capacity based on electric field remote sensing according to claim 1, wherein the method comprises the following steps: comparing the received electric field signal with the waveforms of the electric field signals received before in the database; comparing the electric field signal waveforms with those in a background database to determine the type of lightning strike and distinguish cloud flash from ground flash; the similar electric field signal waveform comprises amplitude and frequency, and changes of the electric field signal waveform are recorded, wherein the changes comprise the amplitude and the waveform; if the cloud flash is generated, the size of the inter-cloud discharge is evaluated; if the lightning is ground flash, the lightning quantity is evaluated and calculated.
4. The method for estimating the lightning strike capacity based on electric field remote sensing according to claim 1, wherein the method comprises the following steps: the electric quantity during lightning strike is estimated according to the lightning strike point positioning result, and the electric quantity during lightning strike is shown as the following formula:
the method comprises the steps of carrying out a first treatment on the surface of the Wherein x and y are distances from the planar coordinates of the lightning strike to the monitoring point; z represents the lightning falling height, which is the distance from the initial discharge point to the lightning strike point in the thundercloud, and z is obtained by positioning an electric field antenna array, and epsilon is the vacuum conductivity.
5. A lightning strike electric quantity measuring device based on electric field remote sensing is characterized in that: comprising the following steps: the device comprises an electric field remote sensing part, an electric field waveform processing and storing part and a data transmission and electric quantity estimation part; the electric field remote sensing part transmits an electric field signal to the electric field waveform processing and storing part through a communication line, then transmits monitoring data of each place to the monitoring master station through a network, and carries out electric quantity estimation at the master station; comparing the received electric field signal with the waveform of the electric field signal received before in the database to determine the type of lightning strike;
the electric field remote sensing part is an electric field antenna and is used for receiving electric field signals generated by lightning strike judged after the trigger is started; receiving electric field electromagnetic waves generated by lightning strike through an antenna sensor to obtain a lightning strike point positioning result of the same place;
the electric field waveform processing and storing section includes: integrator/signal amplification, signal trigger, GPS time, beidou satellite system, A/D converter and memory;
the data transmission and power estimation section includes: the system comprises a multi-signal collecting unit, an electric quantity estimation and analysis module and a memory;
the electric field remote sensing part is used for receiving electric field signals generated by lightning strike judged after the trigger is started;
the electric field waveform processing and storing part is used for carrying out integration, amplification and A/D conversion on the received electric field signal and storing the waveform data conversion result and GPS synchronization time;
the data transmission and electric quantity estimation part is used for transmitting the stored data to the central server, and estimating the electric quantity during thunder through comparing the monitored data, positioning the thunder points and estimating the electric quantity during thunder.
6. The lightning strike capacity measurement device based on electric field remote sensing according to claim 5, wherein: the frequency band of the electric field antenna is 0.1Hz-50kHz.
7. The lightning strike capacity measurement device based on electric field remote sensing according to claim 5, wherein: comprising the following steps:
the first receiving module is used for receiving electric field signals generated by lightning strike;
the data comparison module is used for comparing the received electric field signal with the waveforms of the electric field signals received before in the database to determine the type of lightning strike;
the second receiving module is used for receiving electric field electromagnetic waves generated by lightning strike through the antenna sensor to obtain a lightning strike point positioning result of the same place;
and the estimation module is used for estimating the electric quantity during lightning strike according to the lightning strike point positioning result.
8. The lightning strike capacity measurement device based on electric field remote sensing according to claim 7, wherein: the electric field signal generated by receiving the lightning strike comprises: the electric field remote sensing part receives an electric field signal generated by lightning strike by adopting an electric field antenna with the frequency band of 0.1Hz-50kHz, and records the change delta E of the electric field;
comparing the received electric field signal with the waveforms of the electric field signals received before in the database; comparing the electric field signal waveforms with those in a background database to determine the type of lightning strike and distinguish cloud flash from ground flash; the similar electric field signal waveform comprises amplitude and frequency, and changes of the electric field signal waveform are recorded, wherein the changes comprise the amplitude and the waveform; if the cloud flash is generated, the size of the inter-cloud discharge is evaluated; if the lightning is ground flash, evaluating and calculating the lightning quantity;
the electric quantity during lightning strike is estimated according to the lightning strike point positioning result, and the electric quantity during lightning strike is shown as the following formula:
the method comprises the steps of carrying out a first treatment on the surface of the Wherein x and y are distances from the planar coordinates of the lightning strike to the monitoring point; z represents the vacuum conductivity obtained by electric field antenna array positioning.
9. A computer device comprising a storage medium, a processor and a computer program stored on the storage medium and executable on the processor, characterized in that the processor implements the steps of a method for estimating a lightning strike capacity based on electric field remote sensing according to any of claims 1-4 when the computer program is executed.
10. A computer storage medium, characterized by: the computer storage medium has a computer program stored thereon, which when executed by a processor implements the steps of a lightning strike capacity estimation method based on electric field remote sensing according to any one of claims 1 to 4.
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- 2024-01-12 CN CN202410048351.3A patent/CN117572103A/en active Pending
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| JP2002333489A (en) * | 2001-05-09 | 2002-11-22 | Nippon Soda Co Ltd | Method of predicting thunderbolt |
| CN108845589A (en) * | 2018-06-29 | 2018-11-20 | 宁夏中科天际防雷研究院有限公司 | Ancient building region lightening arresting method and system based on unmanned plane |
| CN112993958A (en) * | 2019-12-02 | 2021-06-18 | 武汉凯飞通信科技有限公司 | Grounding-free lightning protection method |
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