CN112924765B - Method and device for setting electromagnetic environment monitoring points of transformer substation - Google Patents
Method and device for setting electromagnetic environment monitoring points of transformer substation Download PDFInfo
- Publication number
- CN112924765B CN112924765B CN202110141213.6A CN202110141213A CN112924765B CN 112924765 B CN112924765 B CN 112924765B CN 202110141213 A CN202110141213 A CN 202110141213A CN 112924765 B CN112924765 B CN 112924765B
- Authority
- CN
- China
- Prior art keywords
- electric field
- magnetic induction
- transformer substation
- induction intensity
- field intensity
- 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
Links
Images
Classifications
-
- 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
- G01R29/08—Measuring electromagnetic field characteristics
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The application provides a method and a device for setting electromagnetic environment monitoring points of a transformer substation, wherein the method obtains to-be-simulated data of the transformer substation, and inputs the to-be-simulated data into a simulation model of the transformer substation to obtain electric field intensity distribution and magnetic induction intensity distribution of the transformer substation; acquiring electric field intensity meeting a first preset condition in the electric field intensity distribution and magnetic induction intensity meeting a second preset condition in the magnetic induction intensity distribution; judging whether an overlapping area exists between a distribution area of the electric field intensity satisfying a first preset condition in the electric field intensity distribution and a distribution area of the magnetic induction intensity satisfying a second preset condition in the magnetic induction intensity distribution, so as to obtain a judging result; and setting electromagnetic environment monitoring points according to the judging result. According to the method and the device, the monitoring points of the electromagnetic environment of the transformer substation can be set more scientifically and accurately.
Description
Technical Field
The application relates to the technical field of electromagnetic environment monitoring of transformer substations, in particular to a method and a device for setting electromagnetic environment monitoring points of transformer substations.
Background
The electromagnetic environment of the transformer substation is an important environmental pollution emission factor of the transformer substation. In recent years, with the development of economy and society, many cities have been expanded and reformed in power supply networks, and many substations are now in urban central areas. Some public groups talk about the electromagnetic induction of the transformer substation about the radiation color change, and the radiation generated by the transformer substation is considered to harm the public health, so that the radiation of the transformer substation exceeds the standard. Therefore, it is necessary to monitor the power frequency electromagnetic environment of the transformer substation and its surrounding points to grasp the electromagnetic environment of the transformer substation.
At present, in actual operation, a monitoring position is usually selected outside one side of each side wall of the four-side enclosing wall of the transformer substation, or the enclosing wall at one side close to a sensitive point is monitored, but the monitoring position is selected by personnel through using a portable instrument to test on site, meanwhile, the monitoring position is determined according to the condition of the personnel on the transformer substation through site analysis, the randomness and subjectivity are large, even if a plurality of selectable positions exist outside the enclosing wall at the same side, the difference of the positions selected by different personnel is also large, further, the difference of the monitoring values is large, and the selected positions cannot well reflect the electromagnetic environment of the transformer substation.
Disclosure of Invention
In view of this, the purpose of the present application is to provide a method and a device for setting electromagnetic environment monitoring points of a transformer substation, by performing modeling simulation on the transformer substation, electric field intensity distribution and magnetic induction intensity distribution are obtained, statistics is performed on electric field intensity and magnetic induction intensity, and the electromagnetic environment monitoring points of the transformer substation can be scientifically and accurately set according to the statistics result.
The embodiment of the application provides a method for setting electromagnetic environment monitoring points of a transformer substation, which comprises the following steps:
obtaining to-be-simulated data of a transformer substation, and inputting the to-be-simulated data into a transformer substation simulation model to obtain electric field intensity distribution and magnetic induction intensity distribution of the transformer substation;
acquiring electric field intensity meeting a first preset condition in the electric field intensity distribution and magnetic induction intensity meeting a second preset condition in the magnetic induction intensity distribution;
judging whether an overlapping area exists between a distribution area of the electric field intensity satisfying a first preset condition in the electric field intensity distribution and a distribution area of the magnetic induction intensity satisfying a second preset condition in the magnetic induction intensity distribution, so as to obtain a judging result;
and setting electromagnetic environment monitoring points according to the judging result.
Further, the electric field strength meeting the first predetermined condition refers to electric field strength corresponding to an A-th percentile in percentiles of the electric field strengths obtained by counting the electric field strengths of the transformer substations after the electric field strengths of the transformer substations are sequenced in order from large to small;
the magnetic induction intensity meeting the second preset condition refers to the magnetic induction intensity corresponding to the B-th percentile of the percentiles of the magnetic induction intensities of the transformer substations, which are obtained by counting the magnetic induction intensities of the transformer substations after sequencing the magnetic induction intensities of the transformer substations in order from large to small; a is equal to B, and A and B are positive integers.
Further, before the obtaining the data to be simulated of the transformer substation, the method further includes:
acquiring a layout diagram of a transformer substation, and identifying charged equipment affecting the electromagnetic environment of the transformer substation and the trend of a transmission line among the charged equipment from the layout diagram;
simplifying the layout of the transformer substation based on the live equipment and the trend of the transmission lines among the live equipment, so as to obtain a simplified layout of the transformer substation;
based on the simplified layout of the transformer substation, the working parameters of the electrified equipment and the working parameters of the power transmission line are set to obtain to-be-simulated data of the transformer substation.
Further, the setting the electromagnetic environment monitoring point according to the judging result includes:
if the judgment result indicates that an overlapping area exists between a distribution area of the electric field intensity meeting a first preset condition in the electric field intensity distribution and a distribution area of the magnetic induction intensity meeting a second preset condition in the magnetic induction intensity distribution, an electromagnetic environment monitoring point is arranged in the overlapping area;
and if the judgment result indicates that the distribution area of the electric field intensity meeting the first preset condition in the electric field intensity distribution and the distribution area of the magnetic induction intensity meeting the second preset condition in the magnetic induction intensity distribution do not have an overlapping area, setting electromagnetic environment monitoring points according to a preset rule.
Further, the setting the electromagnetic environment monitoring point according to the preset rule includes:
calculating the difference between the electric field intensity and a preset electric field intensity limit value to obtain an electric field intensity difference value, and calculating the difference between the magnetic induction intensity and a preset magnetic induction intensity limit value to obtain a magnetic induction intensity difference value;
comparing the electric field intensity difference with the magnetic induction intensity difference;
when the electric field intensity difference value is smaller than the magnetic induction intensity difference value, setting a position corresponding to the electric field intensity as an electromagnetic environment monitoring point;
and when the magnetic induction intensity difference value is smaller than the electric field intensity difference value, setting the position corresponding to the magnetic induction intensity as an electromagnetic environment monitoring point.
Further, the setting the electromagnetic environment monitoring point according to the preset rule includes:
extracting the magnetic induction intensity from a distribution area of the electric field intensity which meets a first preset condition in the electric field intensity distribution, calculating a difference value of the magnetic induction intensity corresponding to the B percentile, sequencing the difference value from small to large, determining the magnetic induction intensity corresponding to the difference value of N% before ranking, and setting a position corresponding to the magnetic induction intensity as an electromagnetic environment monitoring point, wherein N is a positive integer.
The embodiment of the application also provides a setting device of the electromagnetic environment monitoring point of the transformer substation, the setting device comprises:
the simulation module is used for acquiring to-be-simulated data of the transformer substation, inputting the to-be-simulated data into a transformer substation simulation model, and obtaining electric field intensity distribution and magnetic induction intensity distribution of the transformer substation;
the acquisition module is used for acquiring the electric field intensity meeting a first preset condition in the electric field intensity distribution and the magnetic induction intensity meeting a second preset condition in the magnetic induction intensity distribution;
the judging module is used for judging whether an overlapping area exists between a distribution area of the electric field intensity meeting a first preset condition in the electric field intensity distribution and a distribution area of the magnetic induction intensity meeting a second preset condition in the magnetic induction intensity distribution so as to obtain a judging result;
and the setting module is used for setting electromagnetic environment monitoring points according to the judging result.
Further, the electric field strength meeting the first predetermined condition refers to electric field strength corresponding to an A-th percentile in percentiles of the electric field strengths obtained by counting the electric field strengths of the transformer substations after the electric field strengths of the transformer substations are sequenced in order from large to small;
the magnetic induction intensity meeting the second preset condition refers to the magnetic induction intensity corresponding to the B-th percentile of the percentiles of the magnetic induction intensities of the transformer substations, which are obtained by counting the magnetic induction intensities of the transformer substations after sequencing the magnetic induction intensities of the transformer substations in order from large to small; a is equal to B, and A and B are positive integers.
Further, the setting device further includes: the processing module is specifically used for:
acquiring a layout diagram of a transformer substation, and identifying charged equipment affecting the electromagnetic environment of the transformer substation and the trend of a transmission line among the charged equipment from the layout diagram;
simplifying the layout of the transformer substation based on the live equipment and the trend of the transmission lines among the live equipment, so as to obtain a simplified layout of the transformer substation;
based on the simplified layout of the transformer substation, the working parameters of the electrified equipment and the working parameters of the power transmission line are set to obtain to-be-simulated data of the transformer substation.
Further, when the setting module sets the electromagnetic environment monitoring point according to the judgment result, the setting module is configured to:
if the judgment result indicates that an overlapping area exists between a distribution area of the electric field intensity meeting a first preset condition in the electric field intensity distribution and a distribution area of the magnetic induction intensity meeting a second preset condition in the magnetic induction intensity distribution, an electromagnetic environment monitoring point is arranged in the overlapping area;
and if the judgment result indicates that the distribution area of the electric field intensity meeting the first preset condition in the electric field intensity distribution and the distribution area of the magnetic induction intensity meeting the second preset condition in the magnetic induction intensity distribution do not have an overlapping area, setting electromagnetic environment monitoring points according to a preset rule.
Further, when the setting module sets the electromagnetic environment monitoring point according to the preset rule, the setting module is configured to:
calculating the difference between the electric field intensity and a preset electric field intensity limit value to obtain an electric field intensity difference value, and calculating the difference between the magnetic induction intensity and a preset magnetic induction intensity limit value to obtain a magnetic induction intensity difference value;
comparing the electric field intensity difference with the magnetic induction intensity difference;
when the electric field intensity difference value is smaller than the magnetic induction intensity difference value, setting a position corresponding to the electric field intensity as an electromagnetic environment monitoring point;
and when the magnetic induction intensity difference value is smaller than the electric field intensity difference value, setting the position corresponding to the magnetic induction intensity as an electromagnetic environment monitoring point.
Further, when the setting module sets the electromagnetic environment monitoring point according to the preset rule, the setting module is configured to:
extracting the magnetic induction intensity from a distribution area of the electric field intensity which meets a first preset condition in the electric field intensity distribution, calculating a difference value of the magnetic induction intensity corresponding to the B percentile, sequencing the difference value from small to large, determining the magnetic induction intensity corresponding to the difference value of N% before ranking, and setting a position corresponding to the magnetic induction intensity as an electromagnetic environment monitoring point, wherein N is a positive integer.
The embodiment of the application also provides electronic equipment, which comprises: the system comprises a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, the processor and the memory are communicated through the bus when the electronic device runs, and the machine-readable instructions are executed by the processor to execute the steps of the method for setting the electromagnetic environment monitoring point of the transformer substation.
The embodiment of the application also provides a computer readable storage medium, and a computer program is stored on the computer readable storage medium, and the computer program is executed by a processor to execute the steps of the method for setting the electromagnetic environment monitoring point of the transformer substation.
According to the method and the device for setting the electromagnetic environment monitoring points of the transformer substation, the data to be simulated of the transformer substation are acquired and input into a transformer substation simulation model, so that electric field intensity distribution and magnetic induction intensity distribution of the transformer substation are obtained; acquiring electric field intensity meeting a first preset condition in the electric field intensity distribution and magnetic induction intensity meeting a second preset condition in the magnetic induction intensity distribution; judging whether an overlapping area exists between a distribution area of the electric field intensity satisfying a first preset condition in the electric field intensity distribution and a distribution area of the magnetic induction intensity satisfying a second preset condition in the magnetic induction intensity distribution, so as to obtain a judging result; and setting electromagnetic environment monitoring points according to the judging result. Compared with the method for manually selecting the monitoring position in the prior art, the method can set the electromagnetic environment monitoring point of the transformer substation more scientifically and accurately.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a flowchart of a method for setting electromagnetic environment monitoring points of a transformer substation according to an embodiment of the present application;
FIG. 2 shows a graph of electric field strength versus percentile provided by an embodiment of the present application;
FIG. 3 shows a graph of magnetic induction versus percentile provided by an embodiment of the present application;
fig. 4 shows a flowchart of a step of obtaining data to be simulated of a substation according to an embodiment of the present application;
FIG. 5 shows a simplified layout of a substation provided by an embodiment of the present application;
fig. 6 shows a schematic structural diagram of a device for setting electromagnetic environment monitoring points of a transformer substation according to an embodiment of the present application;
fig. 7 shows a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. Based on the embodiments of the present application, every other embodiment that a person skilled in the art would obtain without making any inventive effort is within the scope of protection of the present application.
The electromagnetic environment of the transformer substation is found to be an important environmental pollution emission factor of the transformer substation through researches. In recent years, with the development of economy and society, many cities have been expanded and reformed in power supply networks, and many substations are now in urban central areas. Some public groups talk about the electromagnetic induction of the transformer substation about the radiation color change, and the radiation generated by the transformer substation is considered to harm the public health, so that the radiation of the transformer substation exceeds the standard. Therefore, it is necessary to monitor the power frequency electromagnetic environment of the transformer substation and its surrounding points to grasp the electromagnetic environment of the transformer substation.
At present, in actual operation, a monitoring position is usually selected outside one side of each side wall of the four-side enclosing wall of the transformer substation, or the enclosing wall at one side close to a sensitive point is monitored, but the monitoring position is selected by personnel through using a portable instrument to test on site, meanwhile, the monitoring position is determined according to the condition of the personnel on the transformer substation through site analysis, the randomness and subjectivity are large, even if a plurality of selectable positions exist outside the enclosing wall at the same side, the difference of the positions selected by different personnel is also large, further, the difference of the monitoring values is large, and the selected positions cannot well reflect the electromagnetic environment of the transformer substation.
Based on the above, the embodiment of the application provides a method for setting the monitoring points of the electromagnetic environment of the transformer substation, so as to set the monitoring points of the electromagnetic environment of the transformer substation more scientifically and accurately.
Referring to fig. 1, fig. 1 is a flowchart of a method for setting electromagnetic environment monitoring points of a transformer substation according to an embodiment of the present application. As shown in fig. 1, the method for setting the electromagnetic environment monitoring point of the transformer substation provided by the embodiment of the application includes:
s101, obtaining to-be-simulated data of the transformer substation, and inputting the to-be-simulated data into a transformer substation simulation model to obtain electric field intensity distribution and magnetic induction intensity distribution of the transformer substation.
In this step, the electric field intensity distribution situation and the magnetic induction intensity distribution situation of the transformer substation can be calculated through simulation by using EFC-400LF software, the software performs electric field intensity simulation calculation on to-be-simulated data of the transformer substation based on the effect of mirror charges to obtain electric field intensity distribution of the transformer substation, where the electric field intensity distribution is the electric field intensity and the distribution situation of the position corresponding to the electric field intensity in the transformer substation, specifically, the electric field intensity distribution situation can be represented in the form of an electric field intensity distribution diagram, in the electric field intensity distribution diagram, the field intensity in a specific electric field intensity range is identified as the same electric field intensity distribution area, and the software performs magnetic induction intensity simulation calculation on to-be-simulated data of the transformer substation based on the pyo-savor law to obtain magnetic induction intensity distribution, where the magnetic induction intensity distribution is the distribution situation of the magnetic induction intensity and the position corresponding to the magnetic induction intensity in the transformer substation, specifically, the magnetic induction intensity distribution situation can be represented in the form of the magnetic induction intensity distribution diagram, and the field intensity in the specific magnetic induction intensity range is identified as the same magnetic induction intensity distribution area.
S102, acquiring the electric field intensity meeting the first preset condition in the electric field intensity distribution and the magnetic induction intensity meeting the second preset condition in the magnetic induction intensity distribution.
The electric field strength meeting the first predetermined condition refers to electric field strength corresponding to an A-th percentile of percentiles of electric field strengths obtained by counting the electric field strengths of the transformer substations after the electric field strengths of the transformer substations are sequenced in order from large to small.
For example, statistics is performed on the electric field intensities in the electric field intensity distribution, specifically, the electric field intensities are ordered from large to small, percentiles of all the electric field intensities are counted, and a percentile statistical result of the electric field intensities is obtained. As an example, the percentile statistics of the electric field intensities may be represented by a graph of the electric field intensities versus the percentile as shown in fig. 2, the percentile is represented by the abscissa in fig. 2, the electric field intensity is represented by the ordinate, the electric field intensity corresponding to the 5 th percentile in the graph means a critical value not exceeding 5% of the electric field intensities among all the electric field intensities, the critical value is represented by a symbol L05, and the same means that the electric field intensity corresponding to the 50 th percentile in the graph means a critical value not exceeding 50% of the electric field intensities among all the electric field intensities, and the critical value is represented by a symbol L50. It should be noted that, 5% and 50% are only one embodiment of the present application, and the percentile may be set to other values according to practical situations, and the present invention is not limited in any way herein.
The magnetic induction intensity meeting the second preset condition refers to the magnetic induction intensity corresponding to the B-th percentile of the percentiles of the magnetic induction intensities of the transformer substations, which are obtained by counting the magnetic induction intensities of the transformer substations after sequencing the magnetic induction intensities of the transformer substations in order from large to small; a is equal to B, and A and B are positive integers.
For example, statistics is performed on electric field intensities in magnetic induction intensity distribution, specifically, the magnetic induction intensities are ranked from large to small, percentiles of all the magnetic induction intensities are counted, and a percentile statistical result of the magnetic induction intensities is obtained. As an example, the percentile statistics of the magnetic induction levels may be represented by a graph of the relationship between the magnetic induction levels and the percentile shown in fig. 3, the percentile is represented by the abscissa in fig. 3, the magnetic induction level corresponding to the 5 th percentile in the graph is represented by a critical value, which is represented by a symbol L05, in which the magnetic induction level corresponding to the 50 th percentile in the graph is represented by a critical value, which is represented by a symbol L50, in which the magnetic induction level corresponding to the 5 th percentile in the graph is not exceeded. It should be noted that, 5% and 50% are only one embodiment of the present application, and the percentile may be set to other values according to practical situations, and the present invention is not limited in any way herein.
Here, the first predetermined condition and the second predetermined condition are determined according to a monitoring purpose, which may be, but not limited to, as an example: the method comprises the steps of determining a first preset condition to be L05 of electric field intensity when the monitoring purpose is that of the electromagnetic environment risk area of the transformer substation and determining a second preset condition to be L05 of magnetic induction intensity, and determining a first preset condition to be L50 of electric field intensity when the monitoring purpose is that of the electromagnetic environment overall situation of the transformer substation and determining a second preset condition to be L50 of magnetic induction intensity.
S103, judging whether an overlapping area exists between the electric field intensity distribution area and the magnetic induction intensity distribution area.
In the step, firstly, an electric field intensity distribution area is determined according to the electric field intensity which meets a first preset condition in the electric field intensity distribution, and a magnetic induction intensity distribution area is determined according to the magnetic induction intensity which meets a second preset condition in the magnetic induction intensity distribution, and then whether an overlapping area exists between the electric field intensity distribution area and the magnetic induction intensity value distribution area is judged.
If there is an overlapping region between the electric field intensity distribution region and the magnetic induction intensity distribution region, step S104 is executed to set electromagnetic environment monitoring points in the overlapping region.
In the step, if an overlapping area exists between the electric field intensity distribution area and the magnetic induction intensity distribution area, the overlapping area is an area which meets the first preset condition and the second preset condition at the same time, and further, electromagnetic environment monitoring points are arranged in the overlapping area.
And if the electric field intensity distribution area and the magnetic induction intensity distribution area do not have an overlapping area, executing step S105, and setting electromagnetic environment monitoring points according to a preset rule.
In the step, if the electric field intensity distribution area and the magnetic induction intensity distribution area do not have an overlapping area, electromagnetic environment monitoring points are set according to preset rules corresponding to different monitoring purposes.
As an example, when monitoring an electromagnetic environment risk area for the purpose of a substation, electromagnetic environment monitoring points are set by the following method: firstly, calculating a difference value between electric field intensity and a preset electric field intensity limit value to obtain an electric field intensity difference value, and calculating a difference value between magnetic induction intensity and a preset magnetic induction intensity limit value to obtain a magnetic induction intensity difference value, wherein the electric field intensity limit value and the magnetic induction intensity limit value are determined according to exposure control limit values specified in GB.8702-2014, specifically, the electric field intensity of 4kv/m is taken as the electric field intensity limit value, and the magnetic induction intensity of 100 mu T is taken as the magnetic induction intensity limit value; and then comparing the electric field intensity difference value with the magnetic induction intensity difference value, setting the position corresponding to the electric field intensity as an electromagnetic environment monitoring point when the electric field intensity difference value is smaller than the magnetic induction intensity difference value, and setting the position corresponding to the magnetic induction intensity as the electromagnetic environment monitoring point when the magnetic induction intensity difference value is smaller than the electric field intensity difference value.
As an example, when monitoring the overall condition of the electromagnetic environment for the purpose of the substation, electromagnetic environment monitoring points are set by the following method: extracting magnetic induction from a distribution area of the electric field intensity, which satisfies a first preset condition, of the electric field intensity distribution, calculating a difference value of the magnetic induction corresponding to the B percentile, sequencing the difference values from small to large, determining the magnetic induction corresponding to the difference value of N% before ranking, and setting a position corresponding to the magnetic induction as an electromagnetic environment monitoring point, wherein N is a positive integer.
Referring to fig. 4, fig. 4 is a flowchart of steps for obtaining data to be simulated of a substation according to another embodiment of the present application. As shown in fig. 4, the step of obtaining to-be-simulated data of a substation provided in the embodiment of the present application includes:
s401, acquiring a layout diagram of a transformer substation, and identifying live equipment affecting the electromagnetic environment of the transformer substation and trend of a transmission line among the live equipment from the layout diagram.
In the step, firstly, a layout diagram of a transformer substation is obtained, wherein the layout diagram comprises live equipment and insulating equipment of the transformer substation, and the live equipment comprises: main transformer, generating line, isolator, circuit breaker, arrester, voltage transformer and current transformer etc. electrified equipment, insulating equipment includes: insulating equipment such as insulator porcelain bushing and reinforced concrete pillar, the trend of the transmission line of electrified equipment each other includes: incoming and outgoing lines. Then, the live equipment affecting the electromagnetic environment of the substation and the trend of the transmission line between the live equipment are identified from the equipment.
S402, simplifying the layout of the transformer substation based on the live equipment and the trend of the transmission lines among the live equipment, and obtaining the simplified layout of the transformer substation.
In the step, because the electrified equipment in the transformer substation is more and the shape is irregular, when simplifying the layout of the transformer substation, complex electrified equipment such as a lightning arrester, a voltage transformer, a current transformer and the like is removed, electrified equipment including a main transformer, a bus, a disconnecting switch and a circuit breaker is reserved, electrified equipment except the main transformer in the electrified equipment is simplified into linear wires, and further, the simplified linear wires and the trend of the transmission line among the electrified equipment are combined to obtain the simplified layout of the transformer substation. Taking a 500kV transformer substation as an example, in a simplified layout diagram of the transformer substation shown in fig. 5, all charged equipment except a main transformer 1 and a main transformer 2 are regarded as linear wires, 500kV outgoing lines marked in the diagram represent the trend of a 500kV field transmission line, 220kV outgoing lines marked in the diagram represent the trend of a 220kV field transmission line, 1M and 2M are buses, 3M, 4M and 5M are bypass buses, and the layout situation of the transmission line in the transformer substation can be clearly seen from the simplified layout diagram of the transformer substation.
S403, based on the simplified layout of the transformer substation, obtaining to-be-simulated data of the transformer substation by setting the working parameters of the electrified equipment and the working parameters of the transmission line.
In the step, based on a simplified layout of a transformer substation, working parameters of the live equipment are firstly set, and the working parameters of the live equipment comprise: the input voltage and input current of the main transformer, the output voltage and output current of the main transformer, and then the working parameters of the transmission line are set, wherein the working parameters of the transmission line comprise: the working voltage of the power transmission line, the working current of the power transmission line, the line phase, the division number of the power transmission line, the radius of the power transmission line and the ground clearance of the power transmission line, wherein the ground clearance of the power transmission line refers to the distance between the power transmission line and the ground, the ground clearance of different power transmission lines can be different, and the data to be simulated of the transformer substation can be obtained by setting the parameters.
According to the method for setting the electromagnetic environment monitoring points of the transformer substation, the data to be simulated of the transformer substation is obtained and input into a transformer substation simulation model, so that electric field intensity distribution and magnetic induction intensity distribution of the transformer substation are obtained; acquiring electric field intensity meeting a first preset condition in the electric field intensity distribution and magnetic induction intensity meeting a second preset condition in the magnetic induction intensity distribution; judging whether an overlapping area exists between a distribution area of the electric field intensity satisfying a first preset condition in the electric field intensity distribution and a distribution area of the magnetic induction intensity satisfying a second preset condition in the magnetic induction intensity distribution, so as to obtain a judging result; and setting electromagnetic environment monitoring points according to the judging result. Compared with the method for manually selecting the monitoring position in the prior art, the method can more scientifically and accurately determine the monitoring point of the electromagnetic environment of the transformer substation.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a device for setting electromagnetic environment monitoring points of a transformer substation according to an embodiment of the present application. As shown in fig. 6, the setting device 600 includes:
the simulation module 601 is configured to obtain to-be-simulated data of a transformer substation, and input the to-be-simulated data into a transformer substation simulation model to obtain electric field intensity distribution and magnetic induction intensity distribution of the transformer substation;
an obtaining module 602, configured to obtain an electric field strength in the electric field strength distribution that satisfies a first predetermined condition and a magnetic induction strength in the magnetic induction strength distribution that satisfies a second predetermined condition;
a judging module 603, configured to judge whether an overlapping area exists between a distribution area of the electric field intensity that satisfies a first predetermined condition in the electric field intensity distribution and a distribution area of the magnetic induction intensity that satisfies a second predetermined condition in the magnetic induction intensity distribution, so as to obtain a judgment result;
and the setting module 604 is configured to set an electromagnetic environment monitoring point according to the determination result.
Further, the electric field strength meeting the first predetermined condition refers to electric field strength corresponding to an A-th percentile in percentiles of the electric field strengths obtained by counting the electric field strengths of the transformer substations after the electric field strengths of the transformer substations are sequenced in order from large to small;
the magnetic induction intensity meeting the second preset condition refers to the magnetic induction intensity corresponding to the B-th percentile of the percentiles of the magnetic induction intensities of the transformer substations, which are obtained by counting the magnetic induction intensities of the transformer substations after sequencing the magnetic induction intensities of the transformer substations in order from large to small; a is equal to B, and A and B are positive integers.
Further, the setting device further includes: a processing module 605, where the processing module 605 is specifically configured to:
acquiring a layout diagram of a transformer substation, and identifying charged equipment affecting the electromagnetic environment of the transformer substation and the trend of a transmission line among the charged equipment from the layout diagram;
simplifying the layout of the transformer substation based on the live equipment and the trend of the transmission lines among the live equipment, so as to obtain a simplified layout of the transformer substation;
based on the simplified layout of the transformer substation, the working parameters of the electrified equipment and the working parameters of the power transmission line are set to obtain to-be-simulated data of the transformer substation.
Further, when the setting module 604 sets the electromagnetic environment monitoring point according to the determination result, the setting module 604 is configured to:
if the judgment result indicates that an overlapping area exists between a distribution area of the electric field intensity meeting a first preset condition in the electric field intensity distribution and a distribution area of the magnetic induction intensity meeting a second preset condition in the magnetic induction intensity distribution, an electromagnetic environment monitoring point is arranged in the overlapping area;
and if the judgment result indicates that the distribution area of the electric field intensity meeting the first preset condition in the electric field intensity distribution and the distribution area of the magnetic induction intensity meeting the second preset condition in the magnetic induction intensity distribution do not have an overlapping area, setting electromagnetic environment monitoring points according to a preset rule.
Further, when the setting module 604 sets the electromagnetic environment monitoring point according to the preset rule, the setting module 604 is configured to:
calculating the difference between the electric field intensity and a preset electric field intensity limit value to obtain an electric field intensity difference value, and calculating the difference between the magnetic induction intensity and a preset magnetic induction intensity limit value to obtain a magnetic induction intensity difference value;
comparing the electric field intensity difference with the magnetic induction intensity difference;
when the electric field intensity difference value is smaller than the magnetic induction intensity difference value, setting a position corresponding to the electric field intensity as an electromagnetic environment monitoring point;
and when the magnetic induction intensity difference value is smaller than the electric field intensity difference value, setting the position corresponding to the magnetic induction intensity as an electromagnetic environment monitoring point.
Further, when the setting module 604 sets the electromagnetic environment monitoring point according to the preset rule, the setting module 604 is configured to:
extracting the magnetic induction intensity from a distribution area of the electric field intensity which meets a first preset condition in the electric field intensity distribution, calculating a difference value of the magnetic induction intensity corresponding to the B percentile, sequencing the difference value from small to large, determining the magnetic induction intensity corresponding to the difference value of N% before ranking, and setting a position corresponding to the magnetic induction intensity as an electromagnetic environment monitoring point, wherein N is a positive integer.
According to the device for setting the electromagnetic environment monitoring points of the transformer substation, the data to be simulated of the transformer substation is acquired and is input into a transformer substation simulation model, so that the electric field intensity distribution and the magnetic induction intensity distribution of the transformer substation are obtained; acquiring electric field intensity meeting a first preset condition in the electric field intensity distribution and magnetic induction intensity meeting a second preset condition in the magnetic induction intensity distribution; judging whether an overlapping area exists between a distribution area of the electric field intensity satisfying a first preset condition in the electric field intensity distribution and a distribution area of the magnetic induction intensity satisfying a second preset condition in the magnetic induction intensity distribution, so as to obtain a judging result; and setting electromagnetic environment monitoring points according to the judging result. Compared with the method for manually selecting the monitoring position in the prior art, the method can more scientifically and accurately determine the monitoring position of the electromagnetic environment of the transformer substation.
Referring to fig. 7, fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 7, the electronic device 700 includes a processor 701, a memory 702, and a bus 703.
The memory 720 stores machine-readable instructions executable by the processor 701, when the electronic device 700 is running, the processor 701 is in communication with the memory 702 through the bus 703, and when the machine-readable instructions are executed by the processor 701, the steps of the method for setting the electromagnetic environment monitoring point of the transformer substation in the method embodiments shown in fig. 1 and fig. 4 may be executed, and the specific implementation manner may refer to the method embodiments and will not be described herein.
The embodiment of the present application further provides a computer readable storage medium, where a computer program is stored on the computer readable storage medium, and when the computer program is executed by a processor, the steps of the method for setting the electromagnetic environment monitoring point of the transformer substation in the method embodiments shown in fig. 1 and fig. 4 may be executed, and a specific implementation manner may refer to the method embodiment and will not be described herein.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer readable storage medium executable by a processor. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Finally, it should be noted that: the foregoing examples are merely specific embodiments of the present application, and are not intended to limit the scope of the present application, but the present application is not limited thereto, and those skilled in the art will appreciate that while the foregoing examples are described in detail, the present application is not limited thereto. Any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or make equivalent substitutions for some of the technical features within the technical scope of the disclosure of the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. The method for setting the electromagnetic environment monitoring points of the transformer substation is characterized by comprising the following steps:
obtaining to-be-simulated data of a transformer substation, and inputting the to-be-simulated data into a transformer substation simulation model to obtain electric field intensity distribution and magnetic induction intensity distribution of the transformer substation;
acquiring electric field intensity meeting a first preset condition in the electric field intensity distribution and magnetic induction intensity meeting a second preset condition in the magnetic induction intensity distribution;
judging whether an overlapping area exists between a distribution area of the electric field intensity satisfying a first preset condition in the electric field intensity distribution and a distribution area of the magnetic induction intensity satisfying a second preset condition in the magnetic induction intensity distribution, so as to obtain a judging result;
setting electromagnetic environment monitoring points according to the judging result;
the electric field strength meeting the first preset condition refers to electric field strength corresponding to an A-th percentile in percentiles of the electric field strengths obtained by counting the electric field strengths of the transformer substations after the electric field strengths of the transformer substations are sequenced in the order from large to small;
the magnetic induction intensity meeting the second preset condition refers to the magnetic induction intensity corresponding to the B-th percentile of the percentiles of the magnetic induction intensities of the transformer substations, which are obtained by counting the magnetic induction intensities of the transformer substations after sequencing the magnetic induction intensities of the transformer substations in order from large to small; a is equal to B, and A and B are positive integers.
2. The method of claim 1, wherein prior to the obtaining the data of the substation to be simulated, the method further comprises:
acquiring a layout diagram of a transformer substation, and identifying charged equipment affecting the electromagnetic environment of the transformer substation and the trend of a transmission line among the charged equipment from the layout diagram;
simplifying the layout of the transformer substation based on the live equipment and the trend of the transmission lines among the live equipment, so as to obtain a simplified layout of the transformer substation;
based on the simplified layout of the transformer substation, the working parameters of the electrified equipment and the working parameters of the power transmission line are set to obtain to-be-simulated data of the transformer substation.
3. The method according to claim 1, wherein the setting an electromagnetic environment monitoring point according to the determination result includes:
if the judgment result indicates that an overlapping area exists between a distribution area of the electric field intensity meeting a first preset condition in the electric field intensity distribution and a distribution area of the magnetic induction intensity meeting a second preset condition in the magnetic induction intensity distribution, an electromagnetic environment monitoring point is arranged in the overlapping area;
and if the judgment result indicates that the distribution area of the electric field intensity meeting the first preset condition in the electric field intensity distribution and the distribution area of the magnetic induction intensity meeting the second preset condition in the magnetic induction intensity distribution do not have an overlapping area, setting electromagnetic environment monitoring points according to a preset rule.
4. A method according to claim 3, wherein the setting electromagnetic environment monitoring points according to a preset rule comprises:
calculating the difference between the electric field intensity and a preset electric field intensity limit value to obtain an electric field intensity difference value, and calculating the difference between the magnetic induction intensity and a preset magnetic induction intensity limit value to obtain a magnetic induction intensity difference value;
comparing the electric field intensity difference with the magnetic induction intensity difference;
when the electric field intensity difference value is smaller than the magnetic induction intensity difference value, setting a position corresponding to the electric field intensity as an electromagnetic environment monitoring point;
and when the magnetic induction intensity difference value is smaller than the electric field intensity difference value, setting the position corresponding to the magnetic induction intensity as an electromagnetic environment monitoring point.
5. A method according to claim 3, wherein the setting electromagnetic environment monitoring points according to a preset rule comprises:
extracting the magnetic induction intensity from a distribution area of the electric field intensity which meets a first preset condition in the electric field intensity distribution, calculating a difference value of the magnetic induction intensity corresponding to the B percentile, sequencing the difference value from small to large, determining the magnetic induction intensity corresponding to the difference value of N% before ranking, and setting a position corresponding to the magnetic induction intensity as an electromagnetic environment monitoring point, wherein N is a positive integer.
6. Device for setting electromagnetic environment monitoring points of transformer substation, which is characterized in that the device comprises:
the simulation module is used for acquiring to-be-simulated data of the transformer substation, inputting the to-be-simulated data into a transformer substation simulation model, and obtaining electric field intensity distribution and magnetic induction intensity distribution of the transformer substation;
the acquisition module is also used for acquiring the electric field intensity meeting the first preset condition in the electric field intensity distribution and the magnetic induction intensity meeting the second preset condition in the magnetic induction intensity distribution;
the judging module is used for judging whether an overlapping area exists between a distribution area of the electric field intensity meeting a first preset condition in the electric field intensity distribution and a distribution area of the magnetic induction intensity meeting a second preset condition in the magnetic induction intensity distribution so as to obtain a judging result;
the setting module is used for setting electromagnetic environment monitoring points according to the judging result;
the electric field strength meeting the first preset condition refers to electric field strength corresponding to an A-th percentile in percentiles of the electric field strengths obtained by counting the electric field strengths of the transformer substations after the electric field strengths of the transformer substations are sequenced in the order from large to small;
the magnetic induction intensity meeting the second preset condition refers to the magnetic induction intensity corresponding to the B-th percentile of the percentiles of the magnetic induction intensities of the transformer substations, which are obtained by counting the magnetic induction intensities of the transformer substations after sequencing the magnetic induction intensities of the transformer substations in order from large to small; a is equal to B, and A and B are positive integers.
7. The apparatus of claim 6, wherein the setting means further comprises: the processing module is specifically used for:
acquiring a layout diagram of a transformer substation, and identifying charged equipment affecting the electromagnetic environment of the transformer substation and the trend of a transmission line among the charged equipment from the layout diagram;
simplifying the layout of the transformer substation based on the live equipment and the trend of the transmission lines among the live equipment, so as to obtain a simplified layout of the transformer substation;
based on the simplified layout of the transformer substation, the working parameters of the electrified equipment and the working parameters of the power transmission line are set to obtain to-be-simulated data of the transformer substation.
8. An electronic device, comprising: a processor, a memory and a bus, the memory storing machine-readable instructions executable by the processor, the processor and the memory in communication via the bus when the electronic device is running, the machine-readable instructions when executed by the processor performing the steps of the method of any of claims 1-5.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, performs the steps of the method according to any of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110141213.6A CN112924765B (en) | 2021-02-02 | 2021-02-02 | Method and device for setting electromagnetic environment monitoring points of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110141213.6A CN112924765B (en) | 2021-02-02 | 2021-02-02 | Method and device for setting electromagnetic environment monitoring points of transformer substation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112924765A CN112924765A (en) | 2021-06-08 |
| CN112924765B true CN112924765B (en) | 2023-05-05 |
Family
ID=76169420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110141213.6A Active CN112924765B (en) | 2021-02-02 | 2021-02-02 | Method and device for setting electromagnetic environment monitoring points of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112924765B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453942B (en) * | 2013-09-13 | 2015-08-05 | 国家电网公司 | Measure the method for 500kV substation operation human contact power frequency electric field, magnetic field intensity |
| CN205941707U (en) * | 2016-08-10 | 2017-02-08 | 北京森馥科技股份有限公司 | Electromagnetic radiation monitoring appearance and electromagnetic radiation monitoring system |
| CN106447576A (en) * | 2016-09-26 | 2017-02-22 | 重庆邮电大学 | Method for optimizing electromagnetic radiation monitoring points |
| CN106557618A (en) * | 2016-11-03 | 2017-04-05 | 合肥华义电气科技有限公司 | A kind of transformer station's electric field appraisal procedure |
| CN108254640B (en) * | 2017-12-19 | 2020-03-10 | 国网江苏省电力有限公司电力科学研究院 | Electronic transformer performance test system based on multi-parameter superposition simulation |
| CN108732519B (en) * | 2018-03-28 | 2023-08-11 | 天津工业大学 | Wireless charging electromagnetic field three-dimensional magnetic measurement method and device |
| CN111537805A (en) * | 2020-05-27 | 2020-08-14 | 南京理工大学 | Substation electromagnetic environment monitoring and stationing method |
-
2021
- 2021-02-02 CN CN202110141213.6A patent/CN112924765B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112924765A (en) | 2021-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Tang et al. | Analysis of significant factors on cable failure using the cox proportional hazard model | |
| Saleh et al. | Optimal microgrids placement in electric distribution systems using complex network framework | |
| dos Santos et al. | Stochastic modeling of power system faults | |
| Sima et al. | Statistical analysis on measured lightning overvoltage surges in a 110 kV air‐insulated substation | |
| CN108846228B (en) | Distribution line rocket lightning triggering test method with conventional configuration of lightning arrester | |
| Ranković et al. | Generalized charge simulation method for the calculation of the electric field in high voltage substations | |
| Liu et al. | Time-domain finite-element method for the transient response of multiconductor transmission lines excited by an electromagnetic field | |
| Ding et al. | Locational sensitivity investigation on PV hosting capacity and fast track PV screening | |
| Wang et al. | A quantitative research on the level of disturbance to secondary signal ports of electronic voltage transformers under the operation of gas‐insulated switchgear | |
| CN112924765B (en) | Method and device for setting electromagnetic environment monitoring points of transformer substation | |
| Žarković et al. | Artificial intelligence based thermographic approach for high voltage substations risk assessment | |
| CN116577698B (en) | Substation ground fault monitoring method based on electromagnetic field distribution | |
| CN109193594B (en) | Method, device, server and storage medium for determining power safety protection level | |
| CN112395788A (en) | Personal safety accurate evaluation method for distribution network neutral point grounding type reconstruction | |
| Abomailek et al. | Feasibility analysis of reduced‐scale visual corona tests in high‐voltage laboratories | |
| Sheela et al. | Cyber risks assessment for intelligent and non-intelligent attacks in power system | |
| Araújo et al. | Decision-making support method for the preventive substitution of surge arresters on distribution systems | |
| Martinez et al. | Lightning performance analysis of transmission lines using the EMTP | |
| Škuletić et al. | Analysis of surge protection performance in low-voltage AC systems with capacitive load | |
| Janani et al. | Evaluation of lightning-induced voltage on overhead lines with nonlinear load using the scattering theory | |
| Yang et al. | Effect of a floating conductor on the breakdown performance of a rod–plane air gap | |
| CN113884740B (en) | Residual current simulation and detection method and system for low-voltage direct current system | |
| Martinez | Parameter determination for power systems transients | |
| Ala et al. | Lightning-current distribution in MV grids interconnected earthing systems | |
| de OP Westin et al. | Comparison between voltage sag simulation methodologies in distribution systems |
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 |