CN113688504A - Parameterized modeling method, system, medium and power terminal for line electromagnetic interference - Google Patents
Parameterized modeling method, system, medium and power terminal for line electromagnetic interference Download PDFInfo
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Abstract
The application relates to a parameterized modeling method for electromagnetic interference of a line, which comprises the following steps: structuring the power transmission line parameters and the oil and gas pipeline parameters respectively to obtain corresponding power transmission line structured data and oil and gas pipeline structured data; reading the transmission line structured data, and generating a geometric model of the alternating current transmission line by adopting a parameterization program to obtain a transmission line model; reading the oil-gas pipeline structured data, and generating a geometric model of the oil-gas pipeline by adopting a parameterization program to obtain an oil-gas pipeline model; and importing the power transmission line model, the oil and gas pipeline model and the soil model along the power transmission line into electromagnetic simulation software to calculate electromagnetic interference parameters. Compared with the prior art, the method and the device can improve the modeling efficiency and precision and reduce model errors, thereby improving the modeling experience of users and meeting the actual application requirements.
Description
Technical Field
The application relates to the technical field of oil and gas pipeline corrosion prevention, in particular to a parametric modeling method, a parametric modeling system, a storage medium and an electric power terminal for line electromagnetic interference.
Background
With the continuous and rapid development of the power industry, the voltage grade of the power transmission line is also continuously improved, and the power transmission lines of alternating current 1000kV and direct current +800kV are also gradually put into use, so that the load current and fault current levels of the power transmission line are obviously improved. Meanwhile, in order to reduce occupied cultivated land and damage to the nature as much as possible, the possibility that the transmission line, the buried pipeline, the railway and the communication line are located in the same shared corridor is gradually increased, and the condition that a plurality of public utility units share the same corridor occurs.
It is well known that both ac and dc transmission lines generate electric and magnetic fields. Therefore, when the high-voltage alternating-current transmission line is in normal operation and has a fault, due to the electromagnetic field existing around the line, induction capacitance and conduction interference current or voltage can be generated in the surrounding air and soil. Causing electrical shock injury to surrounding metal objects, even people standing nearby touching the metal, causing a certain risk. And too high stray current and pipe ground voltage (voltage difference between a pipeline metal structure and soil at the position) can cause the performance degradation and even breakdown of a pipeline anticorrosive layer, and consequently, the risks of corrosion of the pipeline or damage to an insulating flange and rectifying equipment are increased.
In order to reduce the electromagnetic interference influence of an alternating current transmission line on an oil gas pipeline, a common method is to solve an electromagnetic field through artificial modeling on the basis of electromagnetic field analysis software. However, due to the complex topology of the power transmission line and the natural gas pipeline, the simple establishment of the model often takes a lot of time. Meanwhile, errors are inevitably introduced in the manual modeling process, and the electromagnetic coupling analysis of multiple projects and working conditions needs to repeatedly perform complicated modeling work.
Disclosure of Invention
In view of the above, it is necessary to provide a parametric modeling method, a parametric modeling system, a storage medium, and an electric power terminal capable of improving modeling efficiency and accuracy and reducing line electromagnetic interference due to model errors.
The embodiment of the invention provides a parameterized modeling method for electromagnetic interference of a circuit, which comprises the following steps:
structuring the power transmission line parameters and the oil and gas pipeline parameters respectively to obtain corresponding power transmission line structured data and oil and gas pipeline structured data;
reading the transmission line structured data, and generating a geometric model of the alternating current transmission line by adopting a parameterization program to obtain a transmission line model;
reading the oil-gas pipeline structured data, and generating a geometric model of the oil-gas pipeline by adopting a parameterization program to obtain an oil-gas pipeline model;
and importing the power transmission line model, the oil and gas pipeline model and the soil model along the power transmission line into electromagnetic simulation software to calculate electromagnetic interference parameters.
Further, before the power transmission line parameters and the oil and gas pipeline parameters are subjected to structural processing, the method further comprises the following steps:
and correspondingly acquiring power transmission line parameters and oil and gas pipeline parameters of the alternating current power transmission line and the buried oil and gas pipeline.
Further, the transmission line structured data comprises a tower type parameter table and a transmission line parameter table: the oil and gas pipeline structured data comprises an oil and gas pipeline parameter table and an anti-corrosion facility parameter table.
Further, the method for reading the transmission line structured data and generating the geometric model of the alternating current transmission line by adopting a parameterization program to obtain the transmission line model comprises the following steps:
obtaining a corresponding tower structure, a ground wire structure, a grounding network structure and a three-phase lead structure according to the tower type parameter table and the transmission line parameter table;
the tower structure is equivalent to a T-shaped structure, and the grounding wire structure and the grounding grid structure are connected in parallel to obtain a power transmission line tower;
and determining the hanging point position of the three-phase lead structure according to the tower type and the phase sequence diagram of each base tower, connecting the hanging points end to form a conductor, and forming a power transmission line model together with the power transmission line towers.
Further, the ground wire comprises an overhead ground wire, and the method further comprises:
if the overhead ground wire adopts a base-by-base grounding mode, describing the overhead ground wires of the towers into a plurality of sections of conducting wires connected from beginning to end in a coordinate mode;
if the overhead ground wire is grounded in a sectional insulation and single-point grounding mode, a gap is additionally formed between the tower and the overhead ground wire on one side, and the interval of the insulator between the overhead ground wire and the tower is simulated.
Further, the method for reading the oil and gas pipeline structured data and generating a geometric model of the oil and gas pipeline by adopting a parameterization program to obtain the oil and gas pipeline model comprises the following steps:
obtaining the longitude and latitude of each standard section of the oil-gas pipeline according to the oil-gas pipeline parameter table, describing a plurality of sections of conductors connected end to end in each section of pipeline in a coordinate mode, and connecting the conductors to form a pipeline main line;
and arranging a zinc belt parallel to the pipeline trunk line along the pipeline at the installation position according to the parameter table of the anti-corrosion facility, and connecting the zinc belt and the pipeline trunk line to obtain the oil-gas pipeline model.
Furthermore, the transmission line parameter table comprises a pole tower number, a pole tower type, a call height, a ground wire grounding mode, a grounding resistance, an insulator length and a three-phase hanging point number;
the tower type parameter table comprises relative coordinates of ground wire hanging points and relative coordinates of wire hanging point numbers.
The invention further provides a parameterized modeling system for electromagnetic interference of a line, which solves the problems that the existing power transmission line and natural gas pipeline are complex in topological structure, a large amount of time is consumed for manual modeling, errors are introduced difficultly, and complicated modeling work needs to be repeated for electromagnetic coupling analysis of multiple projects and working conditions.
The parameterized modeling system for line electromagnetic interference according to the embodiment of the invention comprises:
the structural processing module is used for respectively carrying out structural processing on the power transmission line parameters and the oil and gas pipeline parameters so as to obtain corresponding power transmission line structural data and oil and gas pipeline structural data;
the line model creating module is used for reading the transmission line structured data and generating a geometric model of the alternating current transmission line in batches by adopting a parameterization program to obtain a transmission line model;
the pipeline model creating module is used for reading the oil and gas pipeline structured data and generating a geometric model of the oil and gas pipeline in batches by adopting a parameterization program to obtain an oil and gas pipeline model;
and the parameterization calculation module is used for guiding the power transmission line model, the oil and gas pipeline model and the soil model along the power transmission line into electromagnetic simulation software so as to calculate the electromagnetic interference parameters.
Another embodiment of the present invention is also directed to a computer readable storage medium including a stored computer program; wherein the computer program, when running, controls an apparatus on which the computer readable storage medium is located to perform the method for parametric modeling of line electromagnetic interference as described above.
Another embodiment of the present invention also proposes an electric power terminal comprising a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the method for parametric modeling of line electromagnetic interference as described above when executing the computer program.
The parameterized modeling method for the line electromagnetic interference respectively carries out structuralization processing on the parameters of the power transmission line and the parameters of the oil and gas pipeline so as to obtain corresponding structuralization data of the power transmission line and the structuralization data of the oil and gas pipeline; reading the transmission line structured data, and generating a geometric model of the alternating current transmission line by adopting a parameterization program to obtain a transmission line model; reading the oil-gas pipeline structured data, and generating a geometric model of the oil-gas pipeline by adopting a parameterization program to obtain an oil-gas pipeline model; and importing the power transmission line model, the oil and gas pipeline model and the soil model along the power transmission line into electromagnetic simulation software to calculate electromagnetic interference parameters. Compared with the prior art, the method and the device can improve the modeling efficiency and precision and reduce model errors, thereby improving the modeling experience of users and meeting the actual application requirements.
Drawings
FIG. 1 is a schematic flow chart of a method for parametric modeling of line electromagnetic interference according to an embodiment of the present invention;
FIG. 2 is a schematic flowchart of step S12 in FIG. 1;
fig. 3 is a schematic diagram of grounding of the overhead ground wire in step S12;
fig. 4 is a diagram of a power transmission line model in step S12;
FIG. 5 is a detailed flowchart of step S13 in FIG. 1;
FIG. 6 is a schematic structural diagram of the oil-gas pipeline trunk in step S13;
FIG. 7 is a schematic structural view of the zinc strip in step S13;
FIG. 8 is a model diagram of electromagnetic interference analysis of a transmission line on an oil and gas pipeline;
FIG. 9 is a block diagram of a parameterized modeling system for electromagnetic interference of a line according to an embodiment of the present invention;
fig. 10 is a structural diagram of an electric power terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
It should be noted that, the step numbers in the text are only for convenience of explanation of the specific embodiments, and do not serve to limit the execution sequence of the steps. The method provided by the embodiment can be executed by the relevant server, and the server is taken as an example for explanation below.
Referring to fig. 1 to 8, a method for parametric modeling of line electromagnetic interference according to an embodiment of the present invention includes steps S11 to S14:
and step S11, performing structuring processing on the power transmission line parameters and the oil and gas pipeline parameters respectively to obtain corresponding power transmission line structured data and oil and gas pipeline structured data.
Specifically, power transmission line parameters of the alternating current power transmission line and oil and gas pipeline parameters of the buried oil and gas pipeline are respectively obtained. The transmission line parameters and the oil and gas pipeline parameters can be unstructured data such as design drawings, pictures, table data and the like. And performing structural processing on the power transmission line parameters and the oil and gas pipeline parameters to correspondingly obtain power transmission line structural data and oil and gas pipeline structural data. The power transmission line structured data comprises a tower type parameter table and a power transmission line parameter table; the oil and gas pipeline structured data comprises an oil and gas pipeline parameter table and an anti-corrosion facility parameter table.
Further, the transmission line parameter table comprises a pole tower number, a pole tower type, a call height, a ground wire grounding mode, a grounding resistance, an insulator length and a three-phase hanging point number. The tower type parameter table comprises relative coordinates of ground wire hanging points and relative coordinates of wire hanging point numbers.
Further, the oil and gas pipeline parameter table comprises an oil and gas pipeline milestone number, longitude and latitude coordinates and a buried depth. The parameter meter of the anticorrosion facility comprises a milestone number of an installation position, temporary cathode protection configuration and zinc strip length, alternating current interference configuration and zinc strip length, strong electric shock protection configuration and zinc strip length.
It can be understood that the power transmission line parameters and the oil and gas pipeline parameters are subjected to structural processing, so that necessary conditions are provided for the subsequent creation of a power transmission line model and an oil and gas pipeline model. Meanwhile, data conversion in the model establishing process is reduced, time and expense for manual data preparation and processing and errors are avoided, and therefore the efficiency and reliability of model establishing are improved.
And step S12, reading the power transmission line structured data, and generating a geometric model of the alternating current power transmission line by adopting a parameterization program to obtain a power transmission line model.
The parameterized program is an interface program which can read in structured data and convert the structured data into a corresponding electromagnetic simulation software model format. It can be understood that the accuracy of electromagnetic interference calculation of the oil and gas pipeline is improved and the model error is reduced through the parameterized batch creation of the electric transmission line model.
Referring to fig. 2, the method for reading the transmission line structured data and generating the geometric model of the ac transmission line in batch by using a parameterization program to obtain the transmission line model includes:
and S121, obtaining a corresponding tower structure, a ground wire structure, a grounding network structure and a three-phase lead structure according to the tower type parameter table and the transmission line parameter table.
Specifically, the tower structure is obtained through the tower number, the tower type and the call height in the transmission line parameter table and the relative coordinates of the ground wire hanging point in the tower type parameter table. And obtaining the ground wire structure through the tower number, the tower type, the call height and the ground wire grounding mode in the transmission line parameter table and the relative coordinates of the ground wire hanging point in the tower type parameter table. And obtaining the grounding network structure through the pole tower number and the grounding resistance in the transmission line parameter table. Obtaining the three-phase wire structure through the pole tower number, the pole tower type, the insulator length and the three-phase hanging point number in the transmission line parameter table and the relative coordinate of the wire hanging point number in the pole tower type parameter table; the hanging point number is mainly used for describing the condition of phase change of a three-phase wire. The relative coordinates of the hanging points comprise coordinates of hanging points 1-6, and the three-phase hanging point number comprises a phase A hanging point number, a phase B hanging point number and a phase C hanging point number.
And S122, enabling the tower structure to be equivalent to a T-shaped structure, and connecting the grounding wire structure and the grounding grid structure in parallel to obtain the power transmission line tower.
Specifically, according to the longitude and latitude of the tower, the type of the tower, the grounding mode of the ground wire and the grounding resistance, the tower structure is equivalent to a T-shaped structure, and the two ends of the tower structure are respectively connected with the ground wire and the grounding grid to obtain the power transmission line tower.
Preferably, referring to fig. 3 to 4, the ground wire includes an overhead ground wire, and if the overhead ground wire is grounded base by base, the overhead ground wire of each tower is described as a plurality of sections of conductors connected end to end in a coordinate manner; if the overhead ground wire is grounded in a sectional insulation and single-point grounding mode, a gap is additionally arranged between the tower and the overhead ground wire on one side, and insulation intervals of the insulator between the overhead ground wire and the tower are simulated.
And S123, determining hanging point positions of the three-phase lead structure according to the tower type and the phase sequence diagram of each base tower, connecting the hanging points end to form a conductor, and forming a power transmission line model together with the power transmission line towers.
Specifically, referring to fig. 5, the hanging point position of the three-phase lead structure is determined according to the coordinates of each base tower along the power transmission line, the tower type, the three-phase sequence and the ground resistance, and the hanging points are connected end to end in a coordinate manner to form a conductor and form a power transmission line model together with the power transmission line tower. The radius and the resistivity of the conductor follow the principle of resistance equivalence, and the grounding resistance of each tower grounding grid is equivalent to a field-shaped grounding grid with the same grounding resistance under a corresponding soil model.
And step S13, reading the oil and gas pipeline structured data, and generating a geometric model of the oil and gas pipeline in batches by adopting a parameterization program to obtain an oil and gas pipeline model.
The parameterized program is an interface program which can read in structured data and convert the structured data into a corresponding electromagnetic simulation software model format. It can be understood that the reliability of electromagnetic interference calculation on the oil and gas pipeline is improved by the creation of the oil and gas pipeline model.
Referring to fig. 6 to 7, the method for reading the oil and gas pipeline structured data and generating a geometric model of the oil and gas pipeline by using a parameterization program to obtain an oil and gas pipeline model includes:
and S131, obtaining the longitude and latitude of each standard section of the oil-gas pipeline according to the oil-gas pipeline parameter table, describing a plurality of sections of conductors connected end to end in each section of pipeline in a coordinate mode, and mutually connecting the conductors to form a pipeline trunk line.
And S132, arranging a zinc belt parallel to the pipeline trunk line along the pipeline at the installation position according to the anti-corrosion facility parameter table, and connecting the zinc belt and the pipeline trunk line to obtain the oil-gas pipeline model.
Specifically, the longitude and latitude of each standard section of the oil and gas pipeline are obtained through the milestone number, the longitude and latitude coordinates and the buried depth of the oil and gas pipeline in an oil and gas pipeline parameter table, the conductors of the sections of the oil and gas pipeline are described in a coordinate mode, the conductors are connected end to end, and a pipeline trunk line is formed by the mutual connection of the conductors. And correspondingly arranging zinc strips parallel to the pipeline along the pipeline at the installation position through the milestone serial number of the installation position in the anti-corrosion facility parameter meter, temporary yin-yang protection configuration, alternating current interference and strong electric shock protection, and obtaining the oil-gas pipeline model through the zinc strips and the pipeline trunk line.
And step S14, importing the power transmission line model, the oil and gas pipeline model and the soil model along the power transmission line into electromagnetic simulation software to calculate electromagnetic interference parameters.
The soil model along the power transmission line is an existing model, and the model can reflect the soil structure and the soil resistivity of the corresponding road section position. The electromagnetic simulation software is CDEGS software, and the corresponding parameterized program development tool is Matlab. The developed parameterization programs comprise a power transmission line tower building program, a phase conductor building program, an overhead ground wire building program, a tower grounding network equivalent building program, an oil-gas pipeline body building program, a temporary cathode protection building program, a direct current interference protection building program, an alternating current interference protection building program and a strong current impact protection building program.
Through the establishment of the power transmission line model and the oil and gas pipeline model, the mutual position relation, the size and the physical property parameters between the power transmission line and the oil and gas pipeline can be effectively determined, so that the parameters such as capacitance, inductance and resistance between the network conductors can be determined.
It can be understood that when the CDEGS is used for the electromagnetic interference calculation, all the conductor segments are defined by the coordinates of the starting point and the coordinates of the ending point, and the corresponding size and physical parameters are specified. After the spatial positions of all conductors are determined, the spatial electromagnetic field distribution can be solved through an electromagnetic field method. I.e., CDEGS provides a pure data interface for storing all conductor information.
Referring to fig. 8, the electromagnetic interference of a 500kV ac transmission line in a city of guangdong province to a natural gas pipeline is taken as an example, and the collection is performed by a power design institute and a pipeline company in the early stage of calculation. And structuring the data to obtain a corresponding structured parameter table. And compiling a parameterized modeling program by adopting Matlab (the parameterized program comprises a transmission line tower building program, a phase conductor building program, an overhead ground wire building program, a tower grounding network equivalent building program, an oil and gas pipeline body building program, a temporary cathode protection building program, a direct current interference protection building program, an alternating current interference protection building program and a strong current impact protection building program), operating the parameterized modeling program, generating a conductor parameter table matched with a CDEGS file format, and finally obtaining an electromagnetic interference analysis model of the transmission line and the oil and gas pipeline.
The parameterized modeling method for the line electromagnetic interference respectively carries out structuralization processing on the parameters of the power transmission line and the parameters of the oil and gas pipeline so as to obtain corresponding structuralization data of the power transmission line and the structuralization data of the oil and gas pipeline; reading the transmission line structured data, and generating a geometric model of the alternating current transmission line by adopting a parameterization program to obtain a transmission line model; reading the oil-gas pipeline structured data, and generating a geometric model of the oil-gas pipeline by adopting a parameterization program to obtain an oil-gas pipeline model; and importing the power transmission line model, the oil and gas pipeline model and the soil model along the power transmission line into electromagnetic simulation software to calculate electromagnetic interference parameters. Compared with the prior art, the method and the device can improve the modeling efficiency and precision and reduce model errors, thereby improving the modeling experience of users and meeting the actual application requirements.
It should be understood that, although the steps in the above-described flowcharts are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in the above-described flowcharts may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or the stages is not necessarily sequential, but may be performed alternately or alternatingly with other steps or at least a portion of the sub-steps or stages of other steps.
Fig. 9 is a block diagram of a parameterized modeling system for electromagnetic interference in a line according to the present invention, where the system includes:
and the structural processing module 21 is configured to perform structural processing on the power transmission line parameters and the oil and gas pipeline parameters respectively to obtain corresponding power transmission line structural data and oil and gas pipeline structural data.
Further, the structural processing module 21 is further configured to obtain the transmission line parameters and the oil and gas pipeline parameters of the alternating current transmission line and the buried oil and gas pipeline before performing structural processing on the transmission line parameters and the oil and gas pipeline parameters.
The power transmission line structured data comprises a tower type parameter table and a power transmission line parameter table: the oil and gas pipeline structured data comprises an oil and gas pipeline parameter table and an anti-corrosion facility parameter table.
The transmission line parameter table comprises a pole tower number, a pole tower type, a calling height, a ground wire grounding mode, a grounding resistor, an insulator length and a three-phase hanging point number;
the tower type parameter table comprises relative coordinates of ground wire hanging points and relative coordinates of wire hanging point numbers;
the oil and gas pipeline parameter table comprises oil and gas pipeline milestone numbers, longitude and latitude coordinates and buried depth;
the parameter meter of the anticorrosion facility comprises a milestone number of an installation position, temporary cathode protection configuration and zinc strip length, alternating current interference configuration and zinc strip length, strong electric shock protection configuration and zinc strip length.
And the line model creating module 22 is used for reading the transmission line structured data and generating a geometric model of the alternating current transmission line by adopting a parameterization program so as to obtain a transmission line model. In particular, the method comprises the following steps of,
obtaining a corresponding tower structure, a ground wire structure, a grounding network structure and a three-phase lead structure according to the tower type parameter table and the transmission line parameter table;
the tower structure is equivalent to a T-shaped structure, and the grounding wire structure and the grounding grid structure are connected in parallel to obtain a power transmission line tower;
and determining the hanging point position of the three-phase lead structure according to the tower type and the phase sequence diagram of each base tower, connecting the hanging points end to form a conductor, and forming a power transmission line model together with the power transmission line towers.
Further, the ground wire comprises an overhead ground wire, wherein:
if the overhead ground wire adopts a base-by-base grounding mode, describing the overhead ground wires of the towers into a plurality of sections of conducting wires connected from beginning to end in a coordinate mode;
if the overhead ground wire is grounded in a sectional insulation and single-point grounding mode, a gap is additionally formed between the tower and the overhead ground wire on one side, and the interval of the insulator between the overhead ground wire and the tower is simulated.
And the pipeline model creating module 23 is used for reading the oil and gas pipeline structured data and generating a geometric model of the oil and gas pipeline by adopting a parameterization program so as to obtain an oil and gas pipeline model. In particular, the method comprises the following steps of,
obtaining the longitude and latitude of each standard section of the oil-gas pipeline according to the oil-gas pipeline parameter table, describing a plurality of sections of conductors connected end to end in each section of pipeline in a coordinate mode, and connecting the conductors to form a pipeline main line;
and arranging a zinc belt parallel to the pipeline trunk line along the pipeline at the installation position according to the parameter table of the anti-corrosion facility, and obtaining the oil-gas pipeline model through the zinc belt and the pipeline trunk line.
And the parameterization calculation module 24 is used for guiding the power transmission line model, the oil and gas pipeline model and the soil model along the power transmission line into electromagnetic simulation software so as to calculate electromagnetic interference parameters.
The parameterized modeling system for the line electromagnetic interference provided by the embodiment of the invention respectively carries out structuralization processing on the parameters of the power transmission line and the parameters of the oil and gas pipeline so as to obtain corresponding structuralization data of the power transmission line and structuralization data of the oil and gas pipeline; reading the transmission line structured data, and generating a geometric model of the alternating current transmission line by adopting a parameterization program to obtain a transmission line model; reading the oil-gas pipeline structured data, and generating a geometric model of the oil-gas pipeline by adopting a parameterization program to obtain an oil-gas pipeline model; and importing the power transmission line model, the oil and gas pipeline model and the soil model along the power transmission line into electromagnetic simulation software to calculate electromagnetic interference parameters. Compared with the prior art, the method and the device can improve the modeling efficiency and precision and reduce model errors, thereby improving the user modeling experience and meeting the actual application requirements
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program; wherein the computer program, when running, controls an apparatus on which the computer readable storage medium is located to perform the method for parametric modeling of line electromagnetic interference as described above.
An embodiment of the present invention further provides an electric power terminal, which is shown in fig. 10 and is a block diagram of a preferred embodiment of the electric power terminal provided by the present invention, the electric power terminal includes a processor 10, a memory 20, and a computer program stored in the memory 20 and configured to be executed by the processor 10, and the processor 10 implements the above-mentioned parameterized modeling method of electromagnetic interference of the line when executing the computer program.
Preferably, the computer program may be divided into one or more modules/units (e.g., computer program 1, computer program 2, … …) that are stored in the memory 20 and executed by the processor 10 to implement the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used for describing the execution process of the computer program in the power terminal.
The Processor 10 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, etc., the general purpose Processor may be a microprocessor, or the Processor 10 may be any conventional Processor, the Processor 10 is a control center of the power terminal, and various interfaces and lines are used to connect various parts of the power terminal.
The memory 20 mainly includes a program storage area that may store an operating system, an application program required for at least one function, and the like, and a data storage area that may store related data and the like. In addition, the memory 20 may be a high speed random access memory, may also be a non-volatile memory, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card), and the like, or the memory 20 may also be other volatile solid state memory devices.
It should be noted that the above-mentioned power terminal may include, but is not limited to, a processor and a memory, and those skilled in the art will understand that the structural block diagram of fig. 10 is only an example of the power terminal and does not constitute a limitation of the power terminal, and may include more or less components than those shown in the drawings, or may combine some components, or different components.
To sum up, the parameterized modeling method, system, storage medium and power terminal for line electromagnetic interference provided by the embodiment of the present invention respectively perform structured processing on the transmission line parameters and the oil and gas pipeline parameters to obtain corresponding transmission line structured data and oil and gas pipeline structured data; reading the transmission line structured data, and generating a geometric model of the alternating current transmission line by adopting a parameterization program to obtain a transmission line model; reading the oil-gas pipeline structured data, and generating a geometric model of the oil-gas pipeline by adopting a parameterization program to obtain an oil-gas pipeline model; and importing the power transmission line model, the oil and gas pipeline model and the soil model along the power transmission line into electromagnetic simulation software to calculate electromagnetic interference parameters. Compared with the prior art, the method and the device can improve the modeling efficiency and precision and reduce model errors, thereby improving the modeling experience of users and meeting the actual application requirements.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method for parametric modeling of line electromagnetic interference, the method comprising the steps of:
structuring the power transmission line parameters and the oil and gas pipeline parameters respectively to obtain corresponding power transmission line structured data and oil and gas pipeline structured data;
reading the transmission line structured data, and generating a geometric model of the alternating current transmission line by adopting a parameterization program to obtain a transmission line model;
reading the oil-gas pipeline structured data, and generating a geometric model of the oil-gas pipeline by adopting a parameterization program to obtain an oil-gas pipeline model;
and importing the power transmission line model, the oil and gas pipeline model and the soil model along the power transmission line into electromagnetic simulation software to calculate electromagnetic interference parameters.
2. The parametric modeling method for line electromagnetic interference according to claim 1, wherein before the structuring processing of the transmission line parameters and the oil and gas pipeline parameters, the method further comprises:
and correspondingly acquiring power transmission line parameters and oil and gas pipeline parameters of the alternating current power transmission line and the buried oil and gas pipeline.
3. The parametric modeling method for line electromagnetic interference of claim 1, wherein the transmission line structured data comprises a tower type parameter table and a transmission line parameter table: the oil and gas pipeline structured data comprises an oil and gas pipeline parameter table and an anti-corrosion facility parameter table.
4. The parametric modeling method for the line electromagnetic interference according to claim 3, wherein the method for reading the transmission line structured data and generating the geometric model of the alternating current transmission line by using a parameterization program to obtain the transmission line model comprises:
obtaining a corresponding tower structure, a ground wire structure, a grounding network structure and a three-phase lead structure according to the tower type parameter table and the transmission line parameter table;
the tower structure is equivalent to a T-shaped structure, and the grounding wire structure and the grounding grid structure are connected in parallel to obtain a power transmission line tower;
and determining the hanging point position of the three-phase lead structure according to the tower type and the phase sequence diagram of each base tower, connecting the hanging points end to form a conductor, and forming a power transmission line model together with the power transmission line towers.
5. The method of parametric modeling of line electromagnetic interference of claim 4, wherein the ground line comprises an overhead ground line, the method further comprising:
if the overhead ground wire adopts a base-by-base grounding mode, describing the overhead ground wires of the towers into a plurality of sections of conducting wires connected from beginning to end in a coordinate mode;
if the overhead ground wire is grounded in a sectional insulation and single-point grounding mode, a gap is additionally formed between the tower and the overhead ground wire on one side, and the interval of the insulator between the overhead ground wire and the tower is simulated.
6. The parametric modeling method for line electromagnetic interference according to claim 4, wherein the method for reading the oil and gas pipeline structured data and generating a geometric model of the oil and gas pipeline by using a parameterization program to obtain an oil and gas pipeline model comprises:
obtaining the longitude and latitude of each standard section of the oil-gas pipeline according to the oil-gas pipeline parameter table, describing a plurality of sections of conductors connected end to end in each section of pipeline in a coordinate mode, and connecting the conductors to form a pipeline main line;
and arranging a zinc belt parallel to the pipeline trunk line along the pipeline at the installation position according to the parameter table of the anti-corrosion facility, and connecting the zinc belt and the pipeline trunk line to obtain the oil-gas pipeline model.
7. The parametric modeling method for line electromagnetic interference according to any one of claims 1 to 6,
the transmission line parameter table comprises a pole tower number, a pole tower type, a calling height, a ground wire grounding mode, a grounding resistor, an insulator length and a three-phase hanging point number;
the tower type parameter table comprises relative coordinates of ground wire hanging points and relative coordinates of wire hanging point numbers;
the oil and gas pipeline parameter table comprises oil and gas pipeline milestone numbers, longitude and latitude coordinates and buried depth;
the parameter meter of the anticorrosion facility comprises a milestone number of an installation position, temporary cathode protection configuration and zinc strip length, alternating current interference configuration and zinc strip length, strong electric shock protection configuration and zinc strip length.
8. A parametric modeling system for line electromagnetic interference, the system comprising:
the structural processing module is used for respectively carrying out structural processing on the power transmission line parameters and the oil and gas pipeline parameters so as to obtain corresponding power transmission line structural data and oil and gas pipeline structural data;
the line model creating module is used for reading the transmission line structured data and generating a geometric model of the alternating current transmission line by adopting a parameterization program to obtain a transmission line model;
the pipeline model creating module is used for reading the oil and gas pipeline structured data and generating a geometric model of the oil and gas pipeline by adopting a parameterization program to obtain an oil and gas pipeline model;
and the parameterization calculation module is used for guiding the power transmission line model, the oil and gas pipeline model and the soil model along the power transmission line into electromagnetic simulation software so as to calculate the electromagnetic interference parameters.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored computer program; wherein the computer program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the method of parametric modeling of line electromagnetic interference according to any of claims 1 to 7.
10. An electrical power terminal, characterized by comprising a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, the processor implementing the method of parametric modeling of line electromagnetic interference according to any of claims 1 to 7 when executing the computer program.
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