CN114089048B - Method, device, equipment and medium for testing high-frequency electromagnetic radiation of transformer substation - Google Patents

Method, device, equipment and medium for testing high-frequency electromagnetic radiation of transformer substation Download PDF

Info

Publication number
CN114089048B
CN114089048B CN202111372394.XA CN202111372394A CN114089048B CN 114089048 B CN114089048 B CN 114089048B CN 202111372394 A CN202111372394 A CN 202111372394A CN 114089048 B CN114089048 B CN 114089048B
Authority
CN
China
Prior art keywords
transformer substation
test
radiation
base station
testing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202111372394.XA
Other languages
Chinese (zh)
Other versions
CN114089048A (en
Inventor
王智慧
孟萨出拉
胡悦
金燊
丁慧霞
段钧宝
刘恒
杨纯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
Information and Telecommunication Branch of State Grid Jibei Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
Information and Telecommunication Branch of State Grid Jibei Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, China Electric Power Research Institute Co Ltd CEPRI, Information and Telecommunication Branch of State Grid Jibei Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202111372394.XA priority Critical patent/CN114089048B/en
Publication of CN114089048A publication Critical patent/CN114089048A/en
Application granted granted Critical
Publication of CN114089048B publication Critical patent/CN114089048B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08Measuring electromagnetic field characteristics
    • G01R29/0864Measuring electromagnetic field characteristics characterised by constructional or functional features
    • G01R29/0871Complete apparatus or systems; circuits, e.g. receivers or amplifiers
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10Complex mathematical operations

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

The invention belongs to the technical field of electromagnetic radiation testing, and discloses a method, a device, equipment and a medium for testing high-frequency electromagnetic radiation of a 5G frequency band transformer substation, wherein the method comprises the following steps: closing 5G base stations in the transformer substation for facilities in the transformer substation, and determining the positions of all 5G base stations in the first distance of the transformer substation; taking the transformer substation as a center, testing a radiation electric field around according to a radial test line, and recording the test result of each radiation field; judging whether electric field measurement values of 1 or more test lines take full line attenuation or partial area trend with the transformer substation as the center; if no end test exists, detailed identification is performed if present. According to the invention, the 5G base station radiation and the transformer substation radiation are both linearly related to 1/r, so that the effect of eliminating the 5G base station radiation is realized, and the technical problem that the 5G frequency band interference generated by transformer substation equipment cannot be tested under the condition of the adjacent 5G base station radiation interference in the prior art is solved.

Description

Method, device, equipment and medium for testing high-frequency electromagnetic radiation of transformer substation
Technical Field
The invention belongs to the technical field of electromagnetic radiation testing, and particularly relates to a method, a device, equipment and a medium for testing high-frequency electromagnetic radiation of a transformer substation.
Background
With the continuous development of communication technology, various band-made communication technologies are developed at a high speed in various fields of national economy and production and life, wherein applications based on 4G and 5G networks in a transformer substation are also more and more abundant, and in order to grasp whether equipment in the transformer substation can generate radiation in 4G and 5G frequency bands and 6G frequency bands in the future, thereby affecting a base station, and testing and grasping electromagnetic radiation of the transformer substation in the working frequency band of the communication base station are required.
Because the signal generated by the communication base station is far in space propagation distance and wide in coverage range, the adjacent communication base station cannot be closed because of the radiation signal of the test transformer station in the communication frequency band, so that the production and living demands of other facilities and residents are affected.
Therefore, a frequency band interference method generated by testing substation equipment under the condition of adjacent communication base station radiation interference needs to be studied.
As an emerging technology, there is no requirement for testing the radiation of the communication frequency band of the transformer substation, but for testing the radio interference (0.15-30 MHz) frequency band, a loop antenna or a log-periodic antenna is used for directly testing a radio interference receiver, and during testing, a region far away from the transformer substation or a power transmission line is selected for testing background noise, so that a radiation field of a region close to an electric power facility is obtained. Wherein the presence of stronger radio interference at the power plant is determined by determining whether radio interference measurements in the vicinity of the power plant exceed background noise by 6dB. The test of radio interference is therefore relatively simple in that the power facilities radiate strongly in the 0.15-30 MHz band and are thus easily distinguished from background noise. However, the communication band interference generated by the transformer substation is weak, and the base station radiates relatively strongly, so that it is difficult to distinguish the communication band interference signal generated by the transformer substation from the background.
The radiation capability test of the communication base station in the working frequency band can be directly carried out in a darkroom, the problem of background interference is avoided, and the radiation intensity and the background noise can be distinguished by adjusting the radiation intensity even if the communication base station needs to be tested outdoors.
As mentioned above, the prior art does not solve the problem of testing the transformer substation in the communication band radiation field. The main reason is that:
(1) The communication frequency band of the transformer substation is weak in radiation;
(2) Compared with the adjacent communication base station, the radiation of the transformer substation in the frequency band has no obvious characteristics, so that the background radiation cannot be removed.
Disclosure of Invention
The invention aims to provide a method, a device, equipment and a medium for testing high-frequency electromagnetic radiation of a transformer substation, which are used for solving the technical problem that communication frequency band interference generated by the transformer substation equipment cannot be tested under the condition of adjacent communication base station radiation interference in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
in a first aspect, the invention provides a method for testing high-frequency electromagnetic radiation of a transformer substation, comprising the following steps:
closing a communication base station of a set system for facilities in a substation in the substation, and determining the position of the communication base station contained in the first distance of the substation;
taking the transformer substation as a center, testing a radiation electric field around according to a radial test line, and recording the test result of each radiation field;
judging whether 1 or more test lines exist in a preset condition by taking the transformer substation as a center according to the test result; if the transformer substation radiation field does not exist, ending the test, and if the transformer substation radiation field exists, identifying the transformer substation radiation field according to the test result; the preset condition is that the electric field measured value of the test line shows full line attenuation or partial area trend.
The invention is further improved in that: the identifying of the transformer substation radiation field aiming at the test result specifically comprises the following steps:
developing from the test result closest to the communication base station, performing curve fitting on test points within a second distance from the communication base station according to 1/r to obtain a conversion function of the communication base station radiation signals; the transformation function is in the form of:
wherein f i (r) represents the radiated signal strength at a distance r from the ith communication base station; the angle mark i represents an ith communication base station; the independent variable r represents the distance between any point in space and the ith communication base station; k (k) i And b i Fitting coefficients;
calculating the radiation intensity calculation results at all test points based on the transformation function, subtracting the calculation results from the test results, and taking the obtained difference as the initial value of the radiation field of the transformer substation in the set standard frequency band;
performing curve fitting on the initial values of the radiation fields on all the test lines by taking the transformer substation as a center according to 1/r 1; r1 is the distance between the measuring point and the center of the transformer substation; if a certain test result in all the test lines is linearly related to 1/r1, the initial value of the radiation field on the linearly related test line is used as the radiation field of the transformer substation, and if the test is not finished.
The invention is further improved in that: the communication base stations with the set system are 4G base stations, 5G base stations or 6G base stations.
The invention is further improved in that: the first distance is 5km; the second distance is 500m.
The invention is further improved in that: the number of the radial test lines is not less than 8, and the test lines are arranged on the connecting lines between the transformer substation and the adjacent communication base stations.
The invention is further improved in that: and in the step of taking the transformer substation as a center, testing the radiation electric field around according to the radial test line and recording the test result of each point radiation field, the center is the geometric center of the transformer substation or the position of a main transformer in the transformer substation.
The invention is further improved in that: the step of identifying the transformer substation radiation field for the test result further comprises the following steps: and drawing the position of the communication base station and the test result of the radiation field in the same graph, and endowing the test result with different colors according to the numerical value, wherein the numerical value is large, the color is dark, and the numerical value is small, and the color is light.
In a second aspect, the present invention provides a high frequency electromagnetic radiation testing apparatus for a substation, comprising:
the determining module is used for closing a communication base station of a set system for facilities in a substation in the substation, and determining the position of the communication base station contained in the first distance of the substation;
the testing module is used for taking the transformer substation as a center, testing the radiation electric field around according to the radial testing line and recording the testing result of each point radiation field;
the judging module is used for judging whether 1 or more test lines exist in the center of the transformer substation according to the test result; if the transformer substation radiation field does not exist, ending the test, and if the transformer substation radiation field exists, identifying the transformer substation radiation field according to the test result; the preset condition is that the electric field measured value of the test line shows full line attenuation or partial area trend.
The invention is further improved in that: further comprises:
a detailed identification module for:
developing from the test result closest to the communication base station, performing curve fitting on test points within a second distance from the communication base station according to 1/r to obtain a conversion function of the communication base station radiation signals; the transformation function is in the form of:
wherein f i (r) represents the radiated signal strength at a distance r from the ith communication base station; the angle mark i represents an ith communication base station; self-changingThe quantity r represents the distance between any point in space and the ith communication base station; k (k) i And b i Fitting coefficients;
calculating the radiation intensity calculation results at all test points based on the transformation function, subtracting the calculation results from the test results, and taking the obtained difference as the initial value of the radiation field of the transformer substation in the set standard frequency band;
performing curve fitting on the initial values of the radiation fields on all the test lines by taking the transformer substation as a center according to 1/r 1; r1 is the distance between the measuring point and the center of the transformer substation; if a certain test result in all the test lines is linearly related to 1/r1, the initial value of the radiation field on the linearly related test line is used as the radiation field of the transformer substation, and if the test is not finished.
The invention is further improved in that: the number of the radial test lines is not less than 8, and the test lines are arranged on the connecting lines between the transformer substation and the adjacent communication base stations.
The invention is further improved in that: the detailed identification module is also used for drawing the communication base station position and the radiation field test result in the same graph, and endowing the test result with different colors according to the numerical value, wherein the numerical value is large, the color is dark, and the numerical value is small, and the color is light.
The invention is further improved in that: the communication base stations with the set system are 4G base stations, 5G base stations or 6G base stations.
In a third aspect, the invention provides an electronic device comprising a processor and a memory, the processor being configured to execute a computer program stored in the memory to implement the substation high frequency electromagnetic radiation testing method.
In a fourth aspect, the present invention provides a computer readable storage medium storing at least one instruction that when executed by a processor implements the method for testing high frequency electromagnetic radiation of a substation.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a method for testing high-frequency electromagnetic radiation of a transformer substation, which utilizes the characteristic that a high-frequency signal generated by the transformer substation is related to the distance between a test point and the transformer substation, takes the transformer substation as a center and measures the high-frequency signal radially to the periphery, and then calculates and obtains the high-frequency radiation of the transformer substation according to a relative value. The invention uses the communication base station radiation and the transformer substation radiation to be linearly related with 1/r, thereby realizing the effect of eliminating the communication base station radiation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the arrangement of radial test lines centered on a substation;
FIG. 2 is a schematic diagram of the communication base station position and the radiation field test result plotted in the same graph;
FIG. 3 is a flow chart of a method for testing high frequency electromagnetic radiation of a transformer substation according to the present invention;
FIG. 4 is a schematic structural diagram of a high-frequency electromagnetic radiation testing device of a transformer substation according to the present invention;
fig. 5 is a block diagram of an electronic device according to the present invention.
Detailed Description
The invention will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The following detailed description is exemplary and is intended to provide further details of the invention. Unless defined otherwise, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention.
Example 1
Referring to fig. 1 to 3, taking 5G frequency bands (700M, 2.6G, 3.5G, 4.9G) as an example, the invention provides a method for testing high-frequency electromagnetic radiation of a transformer substation, comprising the following steps:
s1, closing 5G base stations in a substation 1 for facilities in the substation, and determining the positions of all 5G base stations 2 in the vicinity of 5km of the substation;
s2, as shown in FIG. 1, taking a transformer substation 1 as a center, testing a radiation electric field to the periphery at equal intervals according to a radial test line 10; recording the test results of each point radiation field, wherein the distance between the radial test lines 10 and the center of the transformer substation (the irregular transformer substation takes the position of the main transformer as the center) is not less than 4km, and the interval between test points on the test lines is not more than 100m; wherein, the connection line between the transformer substation and the adjacent 5G base station is necessary to arrange a test line and test the test line within 100m from the 5G base station.
Referring to fig. 1, diamonds represent 5G base station 2 locations.
S3, preliminary identification of curve characteristics:
if the equipment in the transformer substation 1 generates radiation in the 5G frequency band, the radiation is attenuated according to the far field characteristic (the field intensity is linearly related to the inverse of the field-source distance, namely the attenuation is increased along with the increase of the distance between a measuring point and the transformer substation) of high-frequency radiation; judging whether electric field measurement values of 1 or more test lines take full line attenuation or partial area trend with the transformer substation 1 as the center; if the above characteristics are not present, the following discrimination is not required to be continued, and the substation 1 is considered to be free of electromagnetic radiation in the 5G frequency band. If yes, turning to a step S4 for the next detailed identification;
s4, drawing and detailed identification of distribution and test results of 5G base stations:
and drawing the 5G base station position and the radiation field test result on the same graph, wherein the test result is drawn according to a gray level graph, namely, the test result is endowed with different colors according to the numerical value, and the numerical value is large, the color is dark, and the numerical value is small, and the color is light. If the three primary colors are set, the maximum value corresponds to color [ 0] 0 (black), the minimum value corresponds to color [255 255 255] (white), and the rest values are interpolated between [ 0] 255. One test line thus obtained is shown in fig. 2.
The black gray origin represents the test result and the measurement location, the color represents the result value, and the pitch represents the test location. This is a very well correlated set of test results.
Data analysis is required for most test results.
The analysis method is as follows:
s41, developing from a test result closest to the 5G base station, and performing curve fitting on test points within 500m from the 5G base station according to 1/r to obtain a transformation function of the radiation signal of the 5G base station;
s42, fitting all 5G base stations around the transformer substation according to an S51 method to obtain the radiation signal intensity of all the 5G base stations, wherein the transformation function form is as follows:
wherein f i (r) represents the radiated signal strength at a distance r from the ith 5G base station; the angle mark i represents an ith base station 5G; independent variable r represents the distance between any point in space and the ith 5G base station; k (k) i And b i Is the fitting coefficient.
S43, calculating the radiation intensity of all test points based on the transformation function, subtracting the test result from the calculation result, and taking the obtained difference value as the initial value of the radiation field of the transformer substation in the 5G frequency band;
s44, curve fitting is carried out on the initial values of the radiation fields on all the test lines according to 1/r1 again, the center at the moment is the center of the transformer substation, r1 is the distance between the measuring point and the center of the transformer substation, if a certain test result in all the test lines is linearly related to 1/r1, the test result is used as the radiation field of the transformer substation, and if the test result does not exist, the transformer substation is considered to have no 5G frequency band radiation.
Example 2
Referring to fig. 4, the present invention further provides a device for testing high-frequency electromagnetic radiation of a 5G frequency band transformer substation, including:
the determining module is used for closing 5G base stations in the transformer substation for facilities in the transformer substation, and determining the positions of all 5G base stations in the first distance of the transformer substation;
the testing module is used for taking the transformer substation as a center, testing the radiation electric field around according to the radial testing line and recording the testing result of each point radiation field;
the judging module is used for judging whether electric field measured values of 1 or more test lines take full line attenuation or partial area trend with the transformer substation as the center; if the ending test does not exist, carrying out detailed identification if the ending test exists;
a detailed identification module for:
developing from the test result closest to the 5G base station, performing curve fitting on test points within a second distance from the 5G base station according to 1/r to obtain a transformation function of the radiation signal of the 5G base station;
curve fitting is carried out on all 5G base stations around the transformer substation, so that the radiation signal intensity of all the 5G base stations is obtained, and the transformation function form is as follows:
wherein, the corner mark represents an ith 5G base station; independent variable r represents the distance between any point in space and the ith 5G base station;
calculating the radiation intensity calculation results at all test points based on the transformation function, subtracting the calculation results from the test results, and taking the obtained difference as the initial value of the radiation field of the transformer substation in the 5G frequency band;
performing curve fitting on the initial values of the radiation fields on all the test lines by taking the transformer substation as a center according to 1/r 1; r1 is the distance between the measuring point and the center of the transformer substation; if a certain test result in all the test lines is linearly related to 1/r1, the initial value of the radiation field on the linearly related test line is used as the radiation field of the transformer substation, and if the test is not finished.
Example 3
Referring to fig. 5, the present invention further provides an electronic device 100 for a method for testing high-frequency electromagnetic radiation of a 5G-band transformer substation; the electronic device 100 comprises a memory 101, at least one processor 102, a computer program 103 stored in the memory 101 and executable on the at least one processor 102, and at least one communication bus 104.
The memory 101 may be used to store the computer program 103, and the processor 102 implements the method steps of the 5G-band substation high-frequency electromagnetic radiation testing method described in embodiment 1 by running or executing the computer program stored in the memory 101 and invoking the data stored in the memory 101. The memory 101 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data (such as audio data) created according to the use of the electronic device 100, and the like. In addition, the memory 101 may include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card), at least one disk storage device, a Flash memory device, or other non-volatile solid state storage device.
The at least one processor 102 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. The processor 102 may be a microprocessor or the processor 102 may be any conventional processor or the like, the processor 102 being a control center of the electronic device 100, the various interfaces and lines being utilized to connect various portions of the overall electronic device 100.
The memory 101 in the electronic device 100 stores a plurality of instructions to implement a coupled method of extracting a multi-tasking feature, the processor 102 being executable to implement:
closing 5G base stations in the transformer substation for facilities in the transformer substation, and determining the positions of all 5G base stations in the first distance of the transformer substation;
taking the transformer substation as a center, testing a radiation electric field around according to a radial test line, and recording the test result of each radiation field;
judging whether electric field measurement values of 1 or more test lines take full line attenuation or partial area trend with the transformer substation as the center; if the ending test does not exist, carrying out detailed identification if the ending test exists;
and (3) detailed identification: developing from the test result closest to the 5G base station, performing curve fitting on test points within a second distance from the 5G base station according to 1/r to obtain a transformation function of the radiation signal of the 5G base station;
curve fitting is carried out on all 5G base stations around the transformer substation, so that the radiation signal intensity of all the 5G base stations is obtained, and the transformation function form is as follows:
wherein, the corner mark represents an ith 5G base station; independent variable r represents the distance between any point in space and the ith 5G base station;
calculating the radiation intensity calculation results at all test points based on the transformation function, subtracting the calculation results from the test results, and taking the obtained difference as the initial value of the radiation field of the transformer substation in the 5G frequency band;
performing curve fitting on the initial values of the radiation fields on all the test lines by taking the transformer substation as a center according to 1/r 1; r1 is the distance between the measuring point and the center of the transformer substation; if a certain test result in all the test lines is linearly related to 1/r1, the initial value of the radiation field on the linearly related test line is used as the radiation field of the transformer substation, and if the test is not finished.
Specifically, the specific implementation method of the above instructions by the processor 102 may refer to the description of the related steps in embodiment 1, which is not repeated herein.
Example 4
The modules/units integrated in the electronic device 100 may be stored in a computer readable storage medium if implemented in the form of software functional units and sold or used as a stand alone product. Based on such understanding, the present invention may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the computer program may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, and a Read-Only Memory (ROM).
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. The high-frequency electromagnetic radiation testing method for the transformer substation is characterized by comprising the following steps of:
closing a communication base station of a set system for facilities in a substation in the substation, and determining the position of the communication base station contained in the first distance of the substation;
taking the transformer substation as a center, testing a radiation electric field around according to a radial test line, and recording the test result of each radiation field;
judging whether 1 or more test lines exist in a preset condition by taking the transformer substation as a center according to the test result; if the transformer substation radiation field does not exist, ending the test, and if the transformer substation radiation field exists, identifying the transformer substation radiation field according to the test result; the preset condition is that the electric field measured value of the test line shows full line attenuation or partial area trend;
the identifying of the transformer substation radiation field aiming at the test result specifically comprises the following steps:
developing from the test result closest to the communication base station, performing curve fitting on test points within a second distance from the communication base station according to 1/r to obtain a conversion function of the communication base station radiation signals; the transformation function is in the form of:
wherein f i (r) represents the radiated signal strength at a distance r from the ith communication base station; the angle mark i represents an ith communication base station; the independent variable r represents the distance between any point in space and the ith communication base station; k (k) i And b i Fitting coefficients;
calculating the radiation intensity calculation results at all test points based on the transformation function, subtracting the calculation results from the test results, and taking the obtained difference as the initial value of the radiation field of the transformer substation in the set standard frequency band;
performing curve fitting on the initial values of the radiation fields on all the test lines by taking the transformer substation as a center according to 1/r 1; r1 is the distance between the measuring point and the center of the transformer substation; if a certain test result in all the test lines is linearly related to 1/r1, the initial value of the radiation field on the linearly related test line is used as the radiation field of the transformer substation, and if the test is not finished.
2. The method for testing high-frequency electromagnetic radiation of a transformer substation according to claim 1, wherein the first distance is 5km; the second distance is 500m.
3. The method for testing high-frequency electromagnetic radiation of a transformer substation according to claim 1, wherein the number of the radial test lines is not less than 8, and the test lines are arranged on the connecting lines between the transformer substation and the adjacent communication base stations.
4. The method for testing high-frequency electromagnetic radiation of a transformer substation according to claim 1, wherein the transformer substation is taken as a center, the radiation electric field is tested around according to radial test lines, and in the step of recording the test results of each radiation field, the center is the geometric center of the transformer substation or the position of a main transformer in the transformer substation.
5. The method for testing high-frequency electromagnetic radiation of a transformer substation according to claim 1, wherein the step of identifying the radiation field of the transformer substation on the test result further comprises: and drawing the position of the communication base station and the test result of the radiation field in the same graph, and endowing the test result with different colors according to the numerical value, wherein the numerical value is large, the color is dark, and the numerical value is small, and the color is light.
6. The high-frequency electromagnetic radiation testing device of the transformer substation is characterized by comprising:
the determining module is used for closing a communication base station of a set system for facilities in a substation in the substation, and determining the position of the communication base station contained in the first distance of the substation;
the testing module is used for taking the transformer substation as a center, testing the radiation electric field around according to the radial testing line and recording the testing result of each point radiation field;
the judging module is used for judging whether 1 or more test lines exist in the center of the transformer substation according to the test result; if the transformer substation radiation field does not exist, ending the test, and if the transformer substation radiation field exists, identifying the transformer substation radiation field according to the test result; the preset condition is that the electric field measured value of the test line shows full line attenuation or partial area trend;
further comprises:
a detailed identification module for:
developing from the test result closest to the communication base station, performing curve fitting on test points within a second distance from the communication base station according to 1/r to obtain a conversion function of the communication base station radiation signals; the transformation function is in the form of:
wherein f i (r) represents the radiated signal strength at a distance r from the ith communication base station; the angle mark i represents an ith communication base station; the independent variable r represents the distance between any point in space and the ith communication base station; k (k) i And b i Fitting coefficients;
calculating the radiation intensity calculation results at all test points based on the transformation function, subtracting the calculation results from the test results, and taking the obtained difference as the initial value of the radiation field of the transformer substation in the set standard frequency band;
performing curve fitting on the initial values of the radiation fields on all the test lines by taking the transformer substation as a center according to 1/r 1; r1 is the distance between the measuring point and the center of the transformer substation; if a certain test result in all the test lines is linearly related to 1/r1, the initial value of the radiation field on the linearly related test line is used as the radiation field of the transformer substation, and if the test is not finished.
7. The high-frequency electromagnetic radiation testing device of the transformer substation according to claim 6, wherein the number of the radial testing lines is not less than 8, and the testing lines are arranged on connecting lines between the transformer substation and adjacent communication base stations.
8. The device for testing high-frequency electromagnetic radiation of transformer substation according to claim 6, wherein the detailed identification module is further configured to draw the test results of the communication base station position and the radiation field on the same graph, and assign the test results to different colors according to the values, wherein the values are large, dark, and small.
9. An electronic device comprising a processor and a memory, the processor being configured to execute a computer program stored in the memory to implement the method of testing high frequency electromagnetic radiation of a substation according to any one of claims 1 to 5.
10. A computer readable storage medium storing at least one instruction which when executed by a processor implements the method of testing high frequency electromagnetic radiation of a substation according to any one of claims 1 to 5.
CN202111372394.XA 2021-11-18 2021-11-18 Method, device, equipment and medium for testing high-frequency electromagnetic radiation of transformer substation Active CN114089048B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111372394.XA CN114089048B (en) 2021-11-18 2021-11-18 Method, device, equipment and medium for testing high-frequency electromagnetic radiation of transformer substation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111372394.XA CN114089048B (en) 2021-11-18 2021-11-18 Method, device, equipment and medium for testing high-frequency electromagnetic radiation of transformer substation

Publications (2)

Publication Number Publication Date
CN114089048A CN114089048A (en) 2022-02-25
CN114089048B true CN114089048B (en) 2023-12-29

Family

ID=80302183

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111372394.XA Active CN114089048B (en) 2021-11-18 2021-11-18 Method, device, equipment and medium for testing high-frequency electromagnetic radiation of transformer substation

Country Status (1)

Country Link
CN (1) CN114089048B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117233517B (en) * 2023-11-14 2024-02-23 苏州元脑智能科技有限公司 Method, device, readable medium and system for testing field interference of electrostatic discharge

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010101861A (en) * 2008-10-27 2010-05-06 Fujitsu Ltd Radiation work management device, base station, and radiation work management program
CN103076503A (en) * 2012-12-27 2013-05-01 广东省辐射防护协会 Environmental electromagnetic radiation three-dimensional prediction method of GSM (Global System for Mobile Communication) mobile communication base station
CN103841568A (en) * 2013-12-10 2014-06-04 大唐移动通信设备有限公司 Wireless network planning method and device
CN104200273A (en) * 2014-09-04 2014-12-10 杭州湘亭科技有限公司 Radiation monitoring system and method
CN104237651A (en) * 2014-09-18 2014-12-24 国家电网公司 Method for calculating radiation power density of antenna of mobile communication base station
CN109388867A (en) * 2018-09-25 2019-02-26 南方电网科学研究院有限责任公司 A kind of appraisal procedure and device of HVDC converter substation electromagnetic interference

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009051969A1 (en) * 2009-11-04 2011-05-05 Astrium Gmbh Method and device for measuring a radiation field

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010101861A (en) * 2008-10-27 2010-05-06 Fujitsu Ltd Radiation work management device, base station, and radiation work management program
CN103076503A (en) * 2012-12-27 2013-05-01 广东省辐射防护协会 Environmental electromagnetic radiation three-dimensional prediction method of GSM (Global System for Mobile Communication) mobile communication base station
CN103841568A (en) * 2013-12-10 2014-06-04 大唐移动通信设备有限公司 Wireless network planning method and device
CN104200273A (en) * 2014-09-04 2014-12-10 杭州湘亭科技有限公司 Radiation monitoring system and method
CN104237651A (en) * 2014-09-18 2014-12-24 国家电网公司 Method for calculating radiation power density of antenna of mobile communication base station
CN109388867A (en) * 2018-09-25 2019-02-26 南方电网科学研究院有限责任公司 A kind of appraisal procedure and device of HVDC converter substation electromagnetic interference

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
义龙试验区电磁辐射分布的测量与研究;李川 等;科技通报;第33卷(第10期);第222-226页 *
基于SVC的变电站中电磁辐射测试分析;李庆民 等;清华大学学报(自然科学版);第44卷(第4期);第438-441页 *

Also Published As

Publication number Publication date
CN114089048A (en) 2022-02-25

Similar Documents

Publication Publication Date Title
CN114089048B (en) Method, device, equipment and medium for testing high-frequency electromagnetic radiation of transformer substation
CN107948961A (en) Bluetooth alignment system and method
CN104811524B (en) A kind of terminal radio frequency performance test methods and its device
CN109699032A (en) Method, terminal device and the storage medium of WIFI Site Survey
CN112986729A (en) Radiation stray detection method, detection device and readable storage medium
CN116027254B (en) Method for analyzing unbalanced current stealing of three-phase electric energy meter
CN115097215A (en) Radiation evaluation method and device, electronic equipment and storage medium
CN115861801A (en) Pointer instrument identification method and system, electronic equipment and readable storage medium
US20220200711A1 (en) Electronic apparatus, electronic system, and method
CN115840084A (en) Impedance testing method, device and equipment based on coaxial cable and storage medium
CN112469048B (en) Method and system for acquiring coverage state of electric power wireless private network system based on actual measurement and correction, electronic equipment and readable storage medium
CN109388867B (en) Method and device for evaluating electromagnetic radiation interference of high-voltage direct-current converter station
CN112630624A (en) Communication mainboard test method and device
CN110958056B (en) Antenna identification method and device
RU2525295C1 (en) Method of creating electromagnetic compatibility area for ground-based radioelectronic equipment
CN114375033A (en) Signal intensity adjusting method, base station system, base station and medium
CN113452460B (en) Clock frequency selection method, system, medium and terminal of high-speed digital interface
CN113078965B (en) Debugging method and debugging system for antenna system in MIMO terminal
CN110730044A (en) Radio frequency test channel positioning method and device, radio frequency test system and control terminal
CN102761893A (en) Method for processing test data in communities of base station
CN117792526B (en) System and method for testing radio frequency performance of antenna
CN118033341A (en) External interference positioning method and system for converter transformer partial discharge test
CN118310627A (en) Urban transformer substation noise systematic control method
CN117741590A (en) Distance interference confusion system and method
JP2022080794A (en) Measurement system and measurement method for interference radio wave

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant